A kind of headwaters heat pump with heating and fresh-keeping two kinds of patternsTechnical field
The utility model relates to agricultural energy use field, particularly a kind of greenhouse and cold storing and fresh-keeping heat pump composite energy utilization device.
Background technology
The growth of chamber crop and developmenting space often need specific air themperature and humidity, and its growth optimal temperature is 22-25 ℃, and fruit body development optimal temperature is 14-16 ℃; The relative humidity of growth phase is 60%-70%, and fruit body development is 70%-90%.In addition, the culture hut of poultry, domestic animal also needs suitable temperature and humidity.
Warm heating indoor is had to two kinds of modes conventionally, i.e. hot blast and hot water heating, air heating is by return air heating in greenhouse, by the cooling fan coil pipe of inside greenhouse, sends, and is applicable to ambient humidity compared with sensitive crop; Hot water heating, is applicable to the more sensitive crop of environment temperature to heating indoor by inside greenhouse floor heating or local radiator.
Traditional heating technique: mainly adopt soil boiler heating, hot-blast stove, electric heating tube, iodine-tungsten lamp to warm heating indoor, the shortcoming such as these a few class mode of heatings often exist energy consumption large, economical poor, and atmosphere is had to severe contamination, and labor management workload is large.In addition agricultural product storage and fresh-keeping need configure Cold storage in the refrigerator chamber in addition, are equipped with refrigeration plant, and foundation engineering investment is higher.In above-mentioned Greenhouse Heating process, it is often larger that the heat supply temperature of soil boiler is controlled fluctuation, very unfavorable to the environmental stability in greenhouse, and energy consumption is large, and environmental protection is not up to standard, artificial consuming time many.Needing to increase refrigeration plant the season of storage fresh-keeping agricultural product, engineering drops into high shortcoming.
Summary of the invention
Technical problem to be solved in the utility model is to reduce the energy consumption of Greenhouse Heating, and simultaneously for agricultural products fresh-keeping provides low-temperature receiver, the whole energy utilization rate that improves, reduces the pollution to environment.
In order to solve the problems of the technologies described above, the utility model has designed a kind of headwaters heat pump with heating and fresh-keeping two kinds of patterns, comprise compressor, condenser, choke valve, characterized by further comprising heat evaporimeter and refrigeration evaporator, described choke valve one-to-two is connected with refrigeration evaporator with the evaporimeter of heating respectively, after the evaporimeter of heating connection adds temp. control valve, be connected with compressor, refrigeration evaporator is connected with compressor after connecting refrigeration control valve; The coolant outlet one-to-two of condenser is connected with outlet water control valve with Greenhouse Heating pipe respectively, Greenhouse Heating pipe run in after water control valve one-to-two respectively with enter water control valve and go out water pump and be connected, go out water pump and be connected with the cooling water inlet of condenser; Entering water control valve one-to-two is connected with left well mouth with the heating fluid outlet of the evaporimeter of heating respectively, the heating fluid entrance of evaporimeter 7 of heating is connected with suction pump 8, outlet water control valve one-to-two is connected with right well with suction pump respectively, described Greenhouse Heating pipe is arranged in greenhouse, and described refrigeration evaporator is arranged in refrigerating chamber.
The described headwaters heat pump with heating and fresh-keeping two kinds of patterns, is characterized in that described refrigeration evaporator is provided with circulating fan.
The described headwaters heat pump with heating and fresh-keeping two kinds of patterns, is characterized in that Greenhouse Heating pipe made by Heat Conduction Material, is evenly arranged on inside greenhouse surrounding.
Enforcement the utlity model has following beneficial effect: this cover headwaters heat pump is to utilize underground water as the low-temperature heat source of source pump, circulating refrigerant is after heat exchange, by hot water again with greenhouse in air heat-exchange, system does not consume primary energy, also without any generation and the discharge of polluting, be the heating and air-conditioning system of a kind of stable, economy, energy-saving and environmental protection.In non-heating season, system can be controlled and be switched to refrigerating chamber refrigeration and realize a tractor serves several purposes by commutation, and operation management is simplified.Adopt water source heat pump system, will avoid carrying out cool cycles with other water chiller because of needs cooling tower; Also the atmosphere pollution that can avoid the fume emission of fire coal, gas fired-boiler and cause and fire coal, the potential explosion danger of gas burning system.
Accompanying drawing explanation
Fig. 1 is the heat pump assembly schematic diagram with heating and fresh-keeping two kinds of patterns.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the heat pump assembly schematic diagram with heating and fresh-keeping two kinds of patterns, comprise compressor 15, condenser 17, choke valve 16, heat evaporimeter 7 and refrigeration evaporator 12, described choke valve 16 one-to-two are connected with refrigeration evaporator 12 with the evaporimeter 7 of heating respectively, heat after evaporimeter 7 connections add temp. control valve 13 and be connected with compressor 15, refrigeration evaporator 12 is connected with compressor 15 after connecting refrigeration control valves 14; The coolant outlet one-to-two of condenser 17 is connected with outlet water control valve 18 with Greenhouse Heating pipe 3 respectively, Greenhouse Heating pipe 3 run in the rear one-to-two of water control valve 4 respectively with enter water control valve 5 and go out water pump 2 and be connected, go out water pump 2 and be connected with the cooling water inlet of condenser 17; Entering water control valve 5 one-to-two is connected with left well mouth 6 with the heating fluid outlet of the evaporimeter 7 of heating respectively, the heating fluid entrance of evaporimeter 7 of heating is connected with suction pump 8, outlet water control valve 18 one-to-two are connected with right well 9 with suction pump 8 respectively, described Greenhouse Heating pipe 3 is arranged in greenhouse 1, and described refrigeration evaporator 12 is arranged in refrigerating chamber 11.
Native system is according to actual application environment, adopt underground water low-temperature heat source the most, when greenhouse 1 needs heating operation, open draining control valve 4 and add temp. control valve 13, close refrigeration control valve 14, outlet water control valve 18 and enter water control valve 5, open suction pump 8 and compressor 15 simultaneously, suction pump 8 extracts 15 ℃ of left and right underground water from right well 9, enter the evaporimeter 7 of heating and provide heat for cold-producing medium gasifies, by the heating fluid outlet of the evaporimeter 7 of heating, recharge left well 6 afterwards, open out water pump 2 simultaneously, drive the water in greenhouse 1 to enter condenser 17, be heated to preference temperature 40-45 ℃, after in the Greenhouse Heating pipe 3 of making a gift to someone under greenhouse 1, for greenhouse 1 heat supply, backwater after heat exchange returns to out water pump 2 entrances by draining control valve 4 again and continues circulating-heating.
While not needing other seasons water resource heat pump to be greenhouse heat supply, can adopt this cover system is refrigerating chamber 11 refrigeration, for storing various agricultural product.Now draining control valve 4, add temp. control valve 13 and suction pump 8 cuts out, open into water control valve 5, refrigeration control valve 14, outlet water control valve 18 and go out water pump 2, compressor operating, go out water pump 2 by entering water control valve 5 groundwater abstraction in left well 6, send into condenser 17 absorption refrigeration agent liberated heats, by outlet water control valve 18, return to right well 9 afterwards; Cold-producing medium produces after low-temp low-pressure refrigerating fluid through choke valve 16 step-downs, enter refrigeration evaporator 12, absorb therein the heat of refrigerating chamber 11 interior air, gasification is returned to compressor air suction mouth by refrigeration control valve 14 and is started next circulation, realizes refrigerating chamber 11 refrigeration.
Above disclosed is only a kind of embodiment of the utility model, certainly can not limit with this interest field of the utility model, one of ordinary skill in the art will appreciate that all or part of flow process that realizes above-described embodiment, and the equivalent variations of doing according to the utility model claim, still belong to the scope that utility model contains.