CN112594759A - Reverse feeding type multifunctional collaborative ecological heating system - Google Patents

Abstract

Translated fromChinese

本发明公开了一种反哺式多能协同生态采暖系统，包括相互连通太阳能集热回灌储能系统、太阳能集热采暖系统、水源热泵集热采暖系统、双源集热采暖系统。采用本发明有效解决了高寒地区丰富的太阳能和地下水资源，因极限气候条件的制约而不能被充分利用的问题。

The invention discloses a backfeeding multi-energy collaborative ecological heating system, which includes a solar energy collection and recharge energy storage system, a solar energy collection heating system, a water source heat pump collection heating system, and a dual-source heat collection heating system. The invention effectively solves the problem that the abundant solar energy and groundwater resources in alpine regions cannot be fully utilized due to the restriction of extreme climatic conditions.

Description

Reverse feeding type multifunctional collaborative ecological heating system

Technical Field

The invention belongs to the technical field of comprehensive utilization of clean energy, and relates to a feedback type multifunctional collaborative ecological heating system.

Background

Under the restriction of natural factors such as high altitude, cold climate and low heat, coal is used as a main heating means in most towns in three-river source high-cold areas for a long time, along with the continuous promotion of ecological construction in three-river source natural protection areas, some towns have already started the trial of 'coal-to-electricity' engineering, and the clean energy heating technology suitable for popularization and application in the high altitude areas at present mainly comprises 'quantum energy boiler heating technology, air energy heat pump heating technology, electric heated brick bed, electric heating film heating technology' and the like. The 'electricity-coal-replacing' central heating not only needs to be brought into the urban infrastructure planning in advance and reserve the electric capacity-increasing space, but also has the problems of higher heating cost, incapability of bearing by most of farmers, herdsmen and urban families and the like, and the construction work of most of the existing urban infrastructures is basically finished, so that the electric capacity-increasing is difficult and serious.

The distributed energy has the remarkable characteristics of high utilization efficiency, small negative environmental influence, high reliability of energy supply, good economic benefit and the like, and becomes an important development direction of world energy technology.

Disclosure of Invention

The invention aims to provide a feedback type multi-energy collaborative ecological heating system which effectively solves the problem that abundant solar energy and underground water resources in alpine regions cannot be fully utilized due to the limitation of extreme climate conditions.

The invention adopts the technical scheme that the feedback type multi-energy collaborative ecological heating system comprises a solar heat collection and recharge energy storage system, a solar heat collection and heating system, a water source heat pump heat collection and heating system and a double-source heat collection and heating system which are mutually communicated.

The present invention is also characterized in that,

the solar heat collection recharge energy storage system comprises a heat collection water return heat preservation water tank, a water inlet of the heat collection water return heat preservation water tank is communicated with a water source deep well pump arranged in a recharge well, a water outlet of the heat collection water return heat preservation water tank is connected with a solar heat collection circulating pump, the solar heat collection circulating pump is driven by an illumination controller, and an anti-freezing drain valve II is arranged on one side of the solar heat collection circulating pump.

The solar heat collection and heating system comprises a backwater water collector, wherein the backwater water collector is sequentially connected with a hot water collection and backwater heat preservation water tank, a solar heat collection circulating pump and a solar heat collection plate array through an electric integration valve I, the solar heat collection plate array is further sequentially connected with an electric valve I, a hot water collection and water supply heat preservation water tank, a heating circulating pump and a water supply water collector, and an anti-freezing drain valve I is arranged on one side of the electric valve I.

The water source heat pump heat collection heating system comprises a return water collector, and the return water collector is sequentially connected with an electric integral valve II, a water source heat pump unit, a geothermal energy heating circulating pump, an electric integral valve III and a water supply water collector;

the system also comprises a water source deep well pump, wherein the water source deep well pump is sequentially connected with the underground water recharging measuring instrument, the water source heat pump unit, the underground water extracting measuring instrument and the recharging well.

The double-source heat collection heating system comprises a solar heat collection circulating pump, wherein the solar heat collection circulating pump is sequentially connected with a solar heat collection plate array, an electric valve I and a heat collection water supply and heat preservation water tank, and the heat collection water supply and heat preservation water tank is sequentially connected with a heating circulating pump, an electric integrating valve IV and a water supply water collector.

The invention has the advantages that the characteristic of extremely rich solar energy resources in the alpine region is mutually coupled with abundant resources which cannot be directly utilized by underground water (lower water temperature) in the alpine region, the abundant and high-intensity solar radiation heat is recovered in summer, and is recharged and stored underground, the ground temperature is increased, on one hand, plateau vegetation can be nourished, so that the grassland vegetation grows more luxuriantly, on the other hand, the recharge heat energy can be stored underground, and a set of complete multi-energy cooperation, close interaction, strong and short-circuit taking, three-dimensional energy for winter storage in summer and an ecological heating system with high-efficiency utilization is formed. The transformation of an industrial structure, a spatial structure, an energy structure and a consumption structure is accelerated and promoted by practicing, and beneficial exploration is provided for improving the development mode of green renewable energy. In addition, the problem that a solar heat collecting system and a solar heat collector are frozen and cracked commonly existing in the solar resource development and utilization engineering in the alpine region is effectively solved.

Drawings

Fig. 1 is a schematic structural view of a feedback type multifunctional collaborative ecological heating system of the present invention.

In the figure, 1, a hot water collecting and returning heat preservation water tank, 2, a solar heat collecting circulating pump, 3, a solar heat collecting plate array, 4, an electric valve I, 5, a hot water collecting and supplying heat preservation water tank, 6, a heating circulating pump, 7, a water supplying and collecting device, 8, a water returning and collecting device, 9, an electric integrating valve I, 10, an electric integrating valve IV, 11, an electric integrating valve II, 12, a water source heat pump unit, 13, a geothermal heating circulating pump, 14, an electric integrating valve III, 15, a groundwater recharging metering instrument, 16, a groundwater extraction metering instrument, 17, a recharging well, 18, an electric valve II, 19, an anti-freezing drain valve I, 20, an anti-freezing drain valve II, 21, an air supply electromagnetic valve, 22, an illumination controller, 23, groundwater runoff, 24, a heat energy motion track, 25, grassland vegetation, 26, a water level controller, 27, a water replenishing valve and 28, a water.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention relates to a feedback type multi-energy collaborative ecological heating system, which comprises a solar heat collection and recharge energy storage system, a solar heat collection and heating system, a water source heat pump heat collection and heating system and a double-source heat collection and heating system which are mutually communicated, as shown in figure 1.

The solar heat collection recharge energy storage system comprises a heat collection water return heat preservation water tank 1, a water inlet of the heat collection water return heat preservation water tank 1 is communicated with a water source deep well pump 28 arranged in a recharge well 17, a water outlet of the heat collection water return heat preservation water tank 1 is connected with a solar heatcollection circulating pump 2, the solar heatcollection circulating pump 2 is driven by an illumination controller 22, and an anti-freezing drain valve II20 is arranged on one side of the solar heatcollection circulating pump 2. A water replenishing valve 27 is arranged on a connecting pipeline of the hot water collecting and returning heat preservation water tank 1 and the water source deep well pump 28.

The solar heat collection and heating system comprises a backwater water collector 8, wherein the backwater water collector 8 is sequentially connected with a heat collection water backwater heat preservation water tank 1, a solar heatcollection circulating pump 2, a solar heat collection plate array 3 through an electric integral valve I9, the solar heat collection plate array 3 is further sequentially connected with an electric valve I4, a heat collection water supply heat preservation water tank 5, a heating circulating pump 6 and a water supply water collector 7, and an electric integral valve IV10 is arranged between the heating circulating pump 6 and the water supply water collector 7.

One side of the electric valve I4 is provided with an anti-freezing drain valve I19.

The water source heat pump heat collection heating system comprises a return water collector 8, wherein the return water collector 8 is sequentially connected with an electric integral valve II11, a water source heat pump unit 12, a geothermal energy heating circulating pump 13, an electric integral valve III14 and a water supply water collector 7;

the system also comprises a water source deep well pump 28, wherein the water source deep well pump 28 is sequentially connected with an underground water recharging metering instrument 15, a water source heat pump unit 12, an underground water extracting metering instrument 16 and a recharging well 17.

The double-source heat collection heating system comprises a solar heatcollection circulating pump 2, wherein the solar heatcollection circulating pump 2 is sequentially connected with a solar heat collection plate array 3, an electric valve I4 and a heat collection water supply and heat preservation water tank 1, and the heat collection water supply and heat preservation water tank 1 is sequentially connected with a heating circulating pump 6, an electric integrating valve IV10 and a water supply water collector 7.

The working process of the feedback type multifunctional collaborative ecological heating system comprises the following steps:

the working process of the solar heat collection recharge energy storage system (also called as solar heat collection recharge underground reverse feeding grassland vegetation and energy storage underground system) is as follows:

controlled by a water level controller 26 arranged on the heat collecting water return heat-preserving water tank 1, a water source deep well pump 28 is started to pump underground water in the recharge well 17 to supplement water for the heat collecting water return heat-preserving water tank 1, a solar heat collecting circulatingpump 2 is driven by a (solar radiation) illumination controller 22, and the solar heat collecting and heating system is put into an operation mode of 'feeding grassland vegetation and storing energy underground'. Under this mode, water source heat pump thermal-arrest heating system is in standby state, groundwater is by solar energy radiant heat cyclic heating, the groundwater that is heated, on the one hand to the earth exothermic and can be preserved, on the one hand again to the soil of grassland face vegetation root system place bank up the plant base exothermic, advance (make) grassland vegetation grow rapidly under the warm environmental condition sufficiently, including the shielding of solar panel array crowd and the structural support that distributes above the meadow to the strong ultraviolet light of plateau, grassland vegetation can shelter to nourish the growth more exuberantly, formed a green grass like fungus, cattle and sheep crowd, the ecological scene of people and nature harmonious intergrowth.

The solar energy collection heating system includes: heating backwater enters the solar heat collecting plate array 3 through the backwater water collector 8, the electric integration valve I9, the heat collecting water backwater heat preservation water tank 1 and the solar heat collecting circulatingpump 2 to obtain solar radiant heat, is pressurized through the electric valve I4 and the heat collecting water supply heat preservation water tank 5, then is pumped to the indoor heating heat exchanger through the electric integration valve IV10 and the water supply water collector 7, and circulates in the way, so that the purpose of solar heat collection and heating is achieved, and free and clean solar energy resources are fully utilized.

The working process of the water source heat pump heat collection heating system is as follows: on one hand, heating backwater passes through the backwater water collector 8, the electric integral valve II11 and enters a condenser of the water source heat pump unit 12 to be heated by the energy consumed by the superposition of the earth energy obtained from the underground and the power of the water source heat pump unit, is pressurized by the geothermal energy heating circulating pump 13, passes through the electric integral valve III14 and the water supply water collector 7 and enters the indoor heating heat exchanger, and circulates in such a way, so that the purposes of heat collection and heating of the water source heat pump are achieved, and abundant underground water resources (the sum of the accumulated landed heat energy and the solar heat collection recharging energy) in alpine regions are fully utilized. On the other hand, the groundwater source deep well pump 28 measures the groundwater with the energy (the sum of the stored ground heat energy and the solar heat collection recharging energy) by the groundwater recharging measuring instrument 15, pumps the groundwater into the evaporator of the water source heat pump unit 12, the groundwater with the sum of the stored ground heat energy and the solar heat collection recharging energy is converted into the refrigerant vaporization latent heat by the heat pump unit evaporator, the water temperature is reduced, the groundwater is measured by the groundwater extraction measuring instrument 16, and is recharged into the recharging well 17, a water level potential energy difference is formed between the groundwater pumping well and the recharging well, the recharging water moves along the natural runoff direction of the groundwater by the recharging well under the action of the water level potential energy difference, the geothermal energy and the summer recharging stored energy are obtained at the same time, the water temperature is increased, then the groundwater source deep well pump 28 extracts again and recycles, and the circulation is carried out, so as to achieve the purpose that the water source heat pump obtains the energy from the groundwater, the ecological heat collection and heating functions of keeping the material energy alive, balancing and reasonable extraction and recharge, multi-energy cooperation, close interaction and use in summer and winter are realized.

The working process of the double-source heat collection heating system (also called solar energy and water source heat pump double-source heat collection heating system) is as follows: the solar heatcollection circulating pump 2 is started, the heat collection circulating water flows back to the heat collection water supply heat preservation water tank 5 through the solar heat collection plate array 3 and the electric valve I4, frequency modulation and pressurization are carried out through the heating circulating pump 6, then the flow is set through the electric integration valve IV10, namely the solar heat collection flow setting value and the water source heat pump heat collection flow setting value are double-source heat collection heating total flow values, the solar heat collection circulating pump enters the water supply water collector 7, meanwhile, the geothermal heat circulating pump 13 is started, the heat collection water is subjected to frequency modulation and pressurization through the geothermal energy frequency conversion heating circulating pump, then the flow is set through the electric integration valve III14, namely the solar heat collection flow setting value and the water source heat collection flow setting value are double-source heat collection heating total flow values, and the solar heat collection flow and the water source heat collection flow setting value are also enter the water supply water After double-source heat collection and heating circulating water exchanges heat with indoor air, double-source heat collection water with lower temperature flows back to the return water collector 8 and is distributed by the return water collector, one path of double-source heat collection water returns to the heat collection water return heat preservation water tank 1 through flow setting of an electric integration valve I9, and the double-source heat collection and heating circulating water continuously participates in solar heat collection operation; one path of the heat pump flows back to a condenser of the water source heat pump unit 12 through an electric integrating valve II in a flow setting mode, and heat collection operation of the water source heat pump is continued; the circulation is carried out, thereby realizing the purpose of double-source heat collection and heating.

The system ponding drainage system after solar energy collection system shut down night winter: when the solar heat collecting system stops operating suddenly or stops operating at night, because the severe cold is long in winter and the cold and humid are in summer in alpine regions of the three river sources, the annual average temperature is about 0.8-4.3 ℃, the day and night temperature difference is large, therefore, the pipeline of the solar heat collecting system (especially the heat collecting copper pipe in the flat plate type solar heat collector) is easy to be frozen and cracked, which is the common technical problem of the application of the solar heat collecting system engineering in the alpine region, in order to effectively solve the technical problem, the system adopts the method of installing the normally open type (namely, closed by electrifying and opened by power failure) automatic drain valve at the lowest end of the pipeline, in order to strengthen the drainage effect, the system is also specially provided with a compressed gas tank and a drainage air relief valve, after the automatic drainage valve is automatically opened due to power failure, the compressed gas valve is lagged by 5-10min to open the air to thoroughly flush and discharge accumulated water in the system. The automatic drainage process comprises the following steps: when the system is powered off or power is lost, the anti-freezing drain valve I19 and the anti-freezing drain valve II20 are opened simultaneously to drain accumulated water in the system, after automatic drainage is carried out for 5-10min, the air supply electromagnetic valve 21 is delayed to be opened automatically, compressed air forced blowing and drainage is carried out on the solar heat collection system pipeline, the forced blowing and drainage time of the accumulated water is generally set to be 5-8 min or is adjusted according to time requirements, and therefore, the accumulated water in the solar heat collection system is drained thoroughly after the accumulated water is automatically drained and the compressed air forced drained in the night or during power failure.

The solar heat collection recharge energy storage system operates in summer (non-heating period): the solar heatcollection circulating pump 2 is controlled by the illumination controller 22 and the water level controller 26 to be controlled and started, underground water with lower temperature in the heat collection water return heat preservation water tank 1 is pumped to the solar heat collection plate array 3 to absorb the rise of the temperature of solar radiation hot water, at the moment, the water source heat pump heat collection heating system and the solar heat collection heating system are both in a standby state, the electric valve II 18 is automatically opened, the electric valve I4 is closed in a standby state, the solar heat collection water passes through the deep well water return pipe section and is recharged to the recharging well 17, the recharged solar heat collection water moves to the direction of the water taking well water source deep well pump 28 along the direction of the groundwater runoff 23 on one hand, on the other hand, the solar heat is released to the underground water containing layer with infinite capacity, the circulation is carried out, the underground water temperature rises, and part of energy is given, part of the energy releases heat to the grassland vegetation 25 culture medium along the heat energy movement track 24, and the grassland vegetation is nourished by warm and moist solar heat collection and grows rapidly.

The winter complete solar heat collection and heating system operates: the solar energy heat collection system is controlled by a solar energy illumination controller 22 and a temperature difference control end built in a microcomputer controller of the solar energy heat collection system, a solar energy heatcollection circulating pump 2 is started to operate, solar energy heat collection circulating water flows back to a heat collection water supply heat preservation water tank 5 through an electric valve I4 and the heat collection water supply heat preservation water tank 5 through a solar energy heat collection plate array 3 and an electric valve I4, is pressurized through a heating circulating pump 6, passes through an electric integration valve IV10-DF3 solar energy heat collection integration electric valve and a water supply water collector 7, is pumped to an indoor heating heat exchanger to exchange heat with indoor air, and the temperature of; the water with lower temperature water after releasing heat energy flows back to the heat collecting water return heat preservation water tank 1 through the return water collector 8 and the electric integral valve I9, and then is pumped by the solar heat collecting circulatingpump 2, and the circulation is carried out, so that the purpose of solar heat collecting and heating is achieved, and free and clean solar energy resources are fully utilized.

The winter water source heat pump heat collection heating system operates: controlled by heating water temperature, the water source heat pump unit microcomputer controller respectively starts the water source deep well pump 28, the geothermal energy heating circulating pump 13 and the water source heat pump unit 12 in sequence according to program setting, and the water source heat pump unit is put into heat collection and heating operation. On one hand, heating backwater enters a condenser of a water source heat pump unit through a backwater water collector 8 and an electric integral valve II11, is heated and heated by the power consumption energy of the water source heat pump unit superposed by the ground energy obtained from the underground, then is pressurized by a geothermal energy heating circulating pump 13, passes through an electric integral valve III14 and a water supply water collector 7, enters an indoor heating heat exchanger and exchanges heat with indoor air, and water with lower temperature after heat is released passes through the backwater water collector 8 and the electric integral valve II11

The solar energy enters the condenser of the water source heat pump unit 12 to be continuously heated, and the circulation is carried out, so that the purpose of heat collection and heating of the water source heat pump is achieved, and solar radiation energy and geothermal energy resources stored in summer can be efficiently and stepwisely utilized. On the other hand, the groundwater source deep well pump 28 measures the groundwater with the energy (the sum of the stored ground heat energy and the solar heat collection recharging energy) by the groundwater recharging measuring instrument 15, the groundwater with the sum of the stored ground heat energy and the solar heat collection recharging energy is converted into the refrigerant vaporization latent heat by the evaporator of the heat pump unit 12, the water temperature is reduced, the groundwater pumping measuring instrument 16 measures the water temperature, the water level potential energy difference is formed between the groundwater pumping well and the recharging well, the recharging water moves along the natural radial direction of the groundwater from the recharging well under the action of the water level potential energy difference, the geothermal energy and the summer recharging stored heat energy are obtained, the water temperature is increased, the groundwater is recycled by the groundwater source deep well pump 28, and the circulation is carried out, so that the purpose that the heat pump obtains the energy from the groundwater source is achieved, the ecological heat collection and heating functions of keeping the material energy alive, reasonably balancing the extraction and recharge, realizing the multi-energy cooperation, realizing the close interaction and being used in summer and winter are realized.

The solar energy and water source heat pump double-source heat collection heating (double-source heat collection heating system) operates: the solar energy heat collection system is controlled by a temperature difference control end arranged in an illumination controller 22 and a microcomputer controller of the solar energy heat collection system and controlled by the heating temperature of a water source heat pump, the solar energy heat collection system runs preferentially (the solar energy illumination control is set to cover a high illumination range, a medium illumination range and a low illumination range, a temperature difference control signal output end arranged in the microcomputer controller of the solar energy heat collection system is matched with the illumination control range, and heating temperature detection points of the microcomputer controller of the water source heat pump set are set to be equal to or slightly higher than the temperature range matched with the lowest illumination of the solar energy, namely the solar energy heat collection running is preferential, and the water source heat pump heat collection system can automatically determine the number of the starting units of the water source heat pump or the magnitude of variable frequency output power according to the quantity of insufficient solar energy so as to meet the requirement of solar energy heat. When the solar irradiance is in the middle and low illumination range and the solar heat collection water temperature can not meet the heating temperature requirement, the double-source heat collection heating system starts to be put into operation: the solar heatcollection circulating pump 2 is started, the heat collection circulating water flows back to the heat collection water supply heat preservation water tank 5 through the solar heat collection plate array 3 and the electric valve I4, the heat collection circulating water enters the water supply water collector 7 after being subjected to frequency modulation and pressure boosting through the heating circulating pump 6 and then being subjected to flow setting through the electric integrating valve IV10, namely the setting value of the solar heat collection flow and the setting value of the water source heat pump heat collection flow are equal to a double-source heat collection heating total flow value, the geothermal energy heating circulating pump 13 is started, the heat collection water is subjected to frequency modulation and pressure boosting through the geothermal energy frequency conversion heating circulating pump and then is subjected to flow setting through the electric integrating valve III14, namely the setting value of the solar heat collection flow and the setting value of the water source heat collection flow are equal to the double-source heat collection heating total flow value, the solar heat collection flow and the water source heat collection flow are also enter the water supply water collector 7, the setting value, after the double-heat-source heat collection heating circulating water exchanges heat with indoor air, the double-source heat collection water with lower temperature flows back to the water return water collector 8 and is distributed by the water return water collector 8, one path of water returns to the heat collection water return water heat preservation water tank 1 through the flow setting of the electric integration valve 9, and the water returns to continuously participate in solar heat collection operation; one path of the heat pump flows back to an electric integral valve II 12 condenser through an electric integral valve II11, and heat collection operation of the water source heat pump is continued; the circulation is carried out, thereby realizing the purpose of double-source heat collection and heating.

The system accumulated water drainage operation after the solar heat collection system is shut down in winter at night: the anti-freezing drain valve I19 and the anti-freezing drain valve II20 which are arranged at the lowest end of the pipeline of the solar heat collection system are automatically opened (powered on and off and powered off) due to system halt or sudden power failure, and accumulated water of the system starts to be automatically discharged at the moment. When the system stops running, the water pressure of the system is reduced, the water path pressure sensor sends a delay instruction to the air supply electromagnetic valve 21, after 5-10min (or the delay value is determined according to field debugging), the air supply electromagnetic valve 21 is opened, compressed air in the air storage tank starts to flush and discharge high-strength accumulated water to the solar heat collection system pipeline, so that the system pipeline is prevented from being frozen and cracked by the accumulated water, and the forced flushing and discharging time of the compressed air can be generally set to 8-10min (or determined according to the field debugging result).

Claims (5)

1. A regurgitation-feeding type multi-energy collaborative ecological heating system is characterized in that: the system comprises a solar heat collection recharge energy storage system, a solar heat collection heating system, a water source heat pump heat collection heating system and a double-source heat collection heating system which are mutually communicated.

2. The feedback type multi-energy collaborative ecological heating system according to claim 1, characterized in that: the solar heat collection recharge energy storage system comprises a heat collection water return heat preservation water tank, a water inlet of the heat collection water return heat preservation water tank is communicated with a water source deep well pump arranged in a recharge well, a water outlet of the heat collection water return heat preservation water tank is connected with a solar heat collection circulating pump, the solar heat collection circulating pump is driven by an illumination controller, and an anti-freezing drain valve II is arranged on one side of the solar heat collection circulating pump.

3. The feedback type multi-energy collaborative ecological heating system according to claim 1, characterized in that: the solar heat collection and heating system comprises a backwater water collector, wherein the backwater water collector is sequentially connected with a hot water collection and backwater heat preservation water tank, a solar heat collection circulating pump and a solar heat collection plate array through an electric integration valve I, the solar heat collection plate array is further sequentially connected with an electric valve I, a hot water collection and water supply heat preservation water tank, a heating circulating pump and a water supply water collector, and an anti-freezing drain valve I is arranged on one side of the electric valve I.

4. The feedback type multi-energy collaborative ecological heating system according to claim 1, characterized in that: the water source heat pump heat collection heating system comprises a return water collector, and the return water collector is sequentially connected with an electric integral valve II, a water source heat pump unit, a geothermal energy heating circulating pump, an electric integral valve III and a water supply water collector;

the system also comprises a water source deep well pump, wherein the water source deep well pump is sequentially connected with the underground water recharging measuring instrument, the water source heat pump unit, the underground water extracting measuring instrument and the recharging well.

5. The feedback type multi-energy collaborative ecological heating system according to claim 1, characterized in that: the double-source heat collection heating system comprises a solar heat collection circulating pump, wherein the solar heat collection circulating pump is sequentially connected with a solar heat collection plate array, an electric valve I and a heat collection water supply and heat preservation water tank, and the heat collection water supply and heat preservation water tank is sequentially connected with a heating circulating pump, an electric integrating valve IV and a water supply water collector.

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