CN201876004U - Direct-current variable-frequency multi-compressor air conditioner - Google Patents

Abstract

The utility model discloses a direct-current variable-frequency multi-compressor air conditioner which comprises a direct-current variable-frequency compressor (1), an oil and gas separator (2), a four-way valve (3), a condenser (4), a liquid storage device (5), an outboard gas and liquid separator (7) and multiple groups of indoor expansion valves (9) and indoor machines (10), wherein the indoor expansion valves and the indoor machines are connected with each other in parallel; the direct-current variable-frequency multi-compressor air conditioner also comprises a floor thermal-radiation heating device which comprises a condensing coil pipe (13), a water-refrigerant heat exchanger (14) and a hot water radiating and circulating device. During the heating process in winter, the condensing coil pipe is condensed and discharges heat so as to heat water in the water-refrigerant heat exchanger; hot water enters the radiating hot water pipe, thus raising the temperature of the floor surface and heating a user from the leg to the whole body, thereby meeting the requirement of the user on the comfortableness.

Description

The DC frequency-changing multi-gang air-conditioner

Technical field:

The utility model relates to air-conditioning technical field, specifically is a kind of DC frequency-changing multi-gang air-conditioner.

Background technology:

Along with central air conditioner system in expansion such as fields such as apartment, villas, and the area of air-conditioning use occasion is increasing, usage space is also increasing, the parlor of duplex and villa particularly, the application of the multi-joint machine of DC frequency-changing is also just more and more general.Multi-joint machine is meant the air-conditioner that comprises an off-premises station and a plurality of indoor sets.The indoor set of the conventional multi-joint machine of DC frequency-changing is wall-hanging, wind pipe type, ceiling type and cabinet type etc., can satisfy parlor refrigeration demand during refrigeration mode summer, but in the winter time during heating mode, because the hot blast density that indoor set blows out is little, do not arrive people's foot and place, close ground, cause not reaching the human comfort requirement in the temperature near the human foot, just the temperature at near-earth plate place is lower, is not easy to the heating in winter.

The utility model content:

The technical problems to be solved in the utility model provides a kind of DC frequency-changing multi-gang air-conditioner to flooring radiation heat, raising large space heating in winter effect.

Technical solution of the present utility model is, the DC frequency-changing multi-gang air-conditioner of following structure is provided, comprises DC frequency-changeable compressor, gs-oil separator, cross valve, condenser, reservoir, external gas-liquid separator and many groups indoor expansion valve and indoor set in parallel.

Described DC frequency-changing multi-gang air-conditioner also comprises floor heat radiation heating plant, described floor heat radiation heating plant comprises condenser coil, water-refrigerant heat exchanger and hot water radiation cycle device, one end of described condenser coil is communicated with between cross valve and a plurality of indoor sets in parallel, the other end is communicated with between reservoir and a plurality of indoor expansion valve, condenser coil is positioned at water-refrigerant heat exchanger, the two ends of condenser coil are provided with magnetic valve, described water-refrigerant heat exchanger is communicated with hot water radiation cycle device, described hot water radiation cycle device comprises the radiant heat water pipe, and described radiant heat water pipe is laid on the below, floor.

Adopt after the above structure compared with prior art, the utlity model has following advantage: adopt the utility model structure, increased radiant heating plant of floor, the radiant heat water pipe is contained in the below, floor, radiant heating plant of floor is the system in parallel with indoor set, when winter, the DC frequency-changing multi-gang air-conditioner heated, condenser coil is equivalent to indoor heat exchanger, condenser coil condensation heat release is also heated the water in water-refrigerant heat exchanger, hot water enters the radiant heat water pipe through water pump, thereby improve the temperature of floor surface, make human body begin whole body and bask, satisfied the requirement of people comfortableness from shank.

As improvement, described hot water radiation cycle device comprises water pump, water knockout drum, radiant heat water pipe and water collector, the delivery port of water-refrigerant heat exchanger is connected with water pump, described water pump is communicated with water knockout drum, water knockout drum is arranged on radiant heat water pipe water inlet place, and water collector is located at the exit of radiant heat water pipe and is communicated with water-refrigerant heat exchanger.The radiant heat water pipe is mounted in underfloor, can play the effect of heat diffusion preferably, and the human foot can be warmed oneself.

Description of drawings:

Accompanying drawing is the structural representation of DC frequency-changing multi-gang air-conditioner of the present utility model.

Shown in the figure: 1, DC frequency-changeable compressor, 2, gs-oil separator, 3, cross valve, 4, condenser, 5, reservoir, 6, stop valve I, 7, external gas-liquid separator, 8, the oil return capillary, 9, indoor expansion valve, 10, indoor set, 11, gas-liquid separator, 12, heat expansion valve, 13, condenser coil, 14, water-refrigerant heat exchanger, 15, water pump, 16, water knockout drum, 17, radiant heat water pipe, 18, water collector, 19, magnetic valve, 20, stop valve II, 21, check valve, 22, water route filter, 23, the unloading magnetic valve, 24, the liquid bypass solenoid valve.

The specific embodiment:

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

DC frequency-changing multi-gang air-conditioner of the present utility model is made up of the DC frequency-changeable compressor 1 that has gas-liquid separator 11, gs-oil separator 2, cross valve 3, condenser 4, reservoir 5, stop valve I 6, external gas-liquid separator 7, oil return capillary 8, indoor expansion valve 9, a plurality of indoor set 10 and connecting pipe; The exhaust end of described DC frequency-changeable compressor 1 is communicated with the inlet end of gs-oil separator 2, and the oil revolving end of gs-oil separator 2 is communicated with through the gas-liquid separator 11 that oil return capillary 8 and compressor 1 carry, and the outlet side of gs-oil separator 2 is connected with cross valve 3; Other three ends of described cross valve 3 are connected with external gas-liquid separator 7, condenser 4, indoor set 10 respectively, described external gas-liquid separator 7 is connected with gas-liquid separator 11, described condenser 4 is connected with indoor set 10 through reservoir 5, indoor expansion valve 9 successively, and described reservoir 5 is connected with external gas-liquid separator 7 through capillary; Be connected with between described condenser 4 and the reservoir 5 and heat expansion valve 12.

Described DC frequency-changing multi-gang air-conditioner also comprises floor heat radiation heating plant, described floor heat radiation heating plant comprises condenser coil 13, water-refrigerant heat exchanger 14, water pump 15, water knockout drum 16, radiant heat water pipe 17 and water collector 18, one end of described condenser coil 13 is communicated with between cross valve 3 and indoor set 10, the other end is communicated with between reservoir 5 and indoor expansion valve 9, condenser coil 13 is positioned at water-refrigerant heat exchanger 14, the two ends of condenser coil 13 are provided with magnetic valve 19, the delivery port of water-refrigerant heat exchanger 14 is connected with water pump 15, described water pump 15 is communicated with water knockout drum 16, water knockout drum 16 is arranged on radiant heat water pipe 17 water inlet places, water collector 18 is located at the exit of radiant heat water pipe 17 and is communicated with water-refrigerant heat exchanger 14, and described radiant heat water pipe 17 is laid on the below, floor.

Be provided with the check valve 21 in parallel between described condenser 4 and the reservoir 5 with heating expansion valve 12, like this, when air conditioner refrigerating, heating expansion valve has not needed throttling action, cold-producing medium just from condenser and through check valve to reservoir, the conducting direction of check valve is that condenser is to the reservoir direction; When air-conditioning heats, heat expansion valve and play throttling action, cold-producing medium is entered by reservoir and heats expansion valve (this moment, the direction of cold-producing medium was the direction that check valve ends), increases the control that check valve more helps throttling.

Operation principle of the present utility model: the utility model is that heating condition moves down in the winter time, during the heating mode operation, cross valve 3 gets electric commutation, magnetic valve 19 must be established by cable and open, compressor 1 is according to indoor set 10 required capacity adjustment running frequencies, exhaust and compressor enter gs-oil separator 2 to oil mixture and carry out Oil-gas Separation, isolated lubricating oil enters DC frequency-changeable compressor 1 air return end by oil return capillary 8, remaining lubricating oil enters condenser coil 13 condensation heat releases in water-refrigerant heat exchanger 14 with exhaust by cross valve 3 and magnetic valve 19, add water in hot water-refrigerant heat exchanger 14 to the temperature that requires, condensed cold-producing medium enters in the reservoir 5 by magnetic valve 19, condensate liquid becomes the cold-producing medium of low-temp low-pressure to enter to carry out evaporation and heat-exchange in the condenser 4 by heating expansion valve 12 throttlings, cold-producing medium after the evaporation enters external gas-liquid separator 7 by cross valve 3, return compressor 1 and carry gas-liquid separator 11 and compressor 1 muffler, the cold-producing medium of getting back to the DC frequency-changeable compressor air return end carries out compressor in compressor, discharge compressor again, carry out next circulation.This moment, indoor set 10 was also opened operate as normal.

Claims (2)

1. DC frequency-changing multi-gang air-conditioner, comprise DC frequency-changeable compressor (1), gs-oil separator (2), cross valve (3), condenser (4), reservoir (5), external gas-liquid separator (7), and many groups indoor expansion valve (9) and indoor set (10) in parallel, it is characterized in that: described DC frequency-changing multi-gang air-conditioner also comprises floor heat radiation heating plant, described floor heat radiation heating plant comprises condenser coil (13), water-refrigerant heat exchanger (14) and hot water radiation cycle device, one end of described condenser coil (13) is communicated with between cross valve (3) and a plurality of indoor sets in parallel (10), the other end is communicated with between reservoir (5) and a plurality of indoor expansion valve (9), condenser coil (13) is positioned at water-refrigerant heat exchanger (14), the two ends of condenser coil (13) are provided with magnetic valve (19), described water-refrigerant heat exchanger (14) is communicated with hot water radiation cycle device, described hot water radiation cycle device comprises radiant heat water pipe (17), and described radiant heat water pipe (17) is laid on the below, floor.

2. DC frequency-changing multi-gang air-conditioner according to claim 1, it is characterized in that: described hot water radiation cycle device also comprises water pump (15), water knockout drum (16) and water collector (18), the delivery port of water-refrigerant heat exchanger (14) is connected with water pump (15), described water pump (15) is communicated with water knockout drum (16), water knockout drum (16) is arranged on radiant heat water pipe (17) water inlet place, and water collector (18) is located at the exit of radiant heat water pipe (17) and is communicated with water-refrigerant heat exchanger (14).

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