CN201221816Y - Apparatus for dehumidification, purification and air exhausting thermal recovery of indoor fresh wind - Google Patents

Abstract

The utility model relates to a device for indoor fresh air dehumidification, purification and exhaust air heat recovery, which has a shell with a fresh air inlet, an indoor fresh air outlet, an indoor exhaust air inlet and an exhaust air outlet on the side of the wall. The shell is equipped with an air conditioning unit composed of a compressor, a four-way reversing valve, a condenser, a throttle valve, and an evaporator connected sequentially through pipelines, and cooling fans are respectively installed on the evaporator side and the condenser side of the shell. and cooling fan. The utility model absorbs heat from the fresh air and distributes it to the exhaust air during cooling in summer, absorbs heat from the exhaust air and releases it to the fresh air during heating in winter, and the unit stops running in transitional seasons. Since the exhaust air is used as a cold and heat source, the utility model can obviously improve The operating condition of the air conditioning system improves the operating efficiency of the unit and saves the operating cost of air replacement. The device can purify the fresh air and indoor air introduced into the room throughout the year, which is conducive to improving the indoor air quality. When dehumidifying alone, it will not cause indoor air pollution. The temperature is lowered.

Description

A device for indoor fresh air dehumidification, purification and exhaust air heat recovery

technical field

The utility model belongs to the technical field of heating, ventilating and air-conditioning equipment, and relates to a device for indoor fresh air dehumidification, purification and exhaust air heat recovery in buildings. It can also be used for fresh air ventilation heat recovery in conventional air conditioners.

Background technique

Traditional building indoor purification and exhaust heat recovery devices generally adopt the rotary heat transfer method, which is a natural transfer of temperature difference. Due to the fast wind speed and short heat exchange time of the device with this structure, the energy recovery efficiency is low, and the operation of the runner will inevitably cause fresh air pollution, which also reduces the air quality. In addition, the dehumidification operation of the traditional air-conditioning condensing unit will cause the room temperature to drop. Generally, other air-conditioning devices need to be turned on to increase the room temperature.

Utility model content

The purpose of this utility model is to solve the problems existing in the prior art, and further provide a device for indoor fresh air dehumidification, purification and exhaust air heat recovery, which is reasonable in structure, convenient in design and use, energy-saving and economical, and high in work efficiency.

The technical solution for realizing the purpose of the above invention is as follows: the provided device for indoor fresh air dehumidification, purification and exhaust air heat recovery has a fresh air inlet, indoor fresh air outlet and indoor exhaust air respectively on the wall side. The housing of the inlet and exhaust outlet is equipped with an air conditioning unit consisting of a compressor, a four-way reversing valve), a condenser, a throttle valve, and an evaporator. The air outlet of the compressor passes through the four-way reversing valve It is connected to one pipe port of the condenser or evaporator, and the other pipe port of the condenser and evaporator is connected to each other through a throttle valve, and the air outlet of the four-way reversing valve is connected to the air inlet of the compressor. A cooling fan is installed on the evaporator side of the housing, and a cooling fan is installed on the condenser side of the housing.

The utility model uses the exhaust air as the cold and heat source of the unit and switches the cooling and heating working conditions through the four-way valve. The operating principle of the air-conditioning unit is consistent with that of the vapor compression refrigeration system. The condenser exchanges heat with the exhaust air. After the temperature of the refrigerant drops, it enters the evaporator after being decompressed by the throttle valve. After exchanging heat with the fresh air, the low-temperature and low-pressure refrigerant enters the compressor to complete the system cycle. The utility model absorbs heat from the fresh air and distributes it to the exhaust air during cooling in summer, absorbs heat from the exhaust air and releases it to the fresh air during heating in winter, and the unit stops running in transitional seasons, and only performs displacement ventilation without heat exchange. When the unit is running in summer, because the exhaust air is used as a cold source, the exhaust air temperature is lower than the outdoor air temperature, the condensation temperature is lowered, and the operating efficiency of the unit is improved; The air temperature and the evaporation temperature of the unit are increased, and the operating efficiency is improved. Because the utility model uses the exhaust air as the cold and heat source, the operating condition of the air conditioning system is obviously improved, the operating efficiency of the unit is improved, and the operating cost of air replacement can be greatly saved. Independent of each other, avoiding the air pollution problem existing in traditional devices. The device can purify the fresh air and indoor air introduced into the room throughout the year, which is conducive to improving the indoor air quality. When the dehumidification operation is performed alone, the indoor temperature will not drop.

The device described in the utility model can be hoisted under the indoor ceiling, and can also be installed on the ground.

Description of drawings

The accompanying drawing is a structural schematic diagram of a specific embodiment of the utility model.

The labels in the drawings are: 1-compressor, 2-four-way reversing valve, 3-condenser, 4-throttling device, 5-evaporator, 6-cooling fan, 7-radiating fan, 8- Indoor exhaust air outlet, 9-indoor fresh air inlet, 10-indoor return air outlet, 11-exhaust air inlet, 12-air purifier, 13-air filter, 14-fresh air regulating valve, 15-outdoor fresh air inlet, 16- Outdoor exhaust air inlet, 17-exhaust air regulating valve, 18-air supply regulating valve, 19-indoor air supply outlet, 20-housing.

Detailed ways

The content of the utility model will be further described below in conjunction with the accompanying drawings and embodiments, but the actual production structure of the utility model is not limited to the following embodiments.

Referring to the accompanying drawings, the device for indoor fresh air dehumidification, purification and exhaust air heat recovery described in the utility model mainly includes three parts: an air conditioning unit, a fresh air system, and an exhaust system.

The air conditioner unit is composed of a compressor 1, a four-way reversing valve 2, a condenser 3, a throttling device 4, and an evaporator 5 which are arranged in the housing 20 and are sequentially connected through pipelines, wherein the air outlet of the compressor 1 is connected through four The reversing valve 2 is connected to a pipe port of the condenser 3 or the evaporator 5, and the other pipe port of the condenser 3 and the evaporator 5 is connected to each other through the throttle valve 4, and the outlet of the four-way reversing valve 2 The air port is connected to the air inlet of compressor 1, and the exhaust air is used as the cold and heat source of the unit during operation, and the cooling and heating working conditions are switched through the four-way valve. The fresh air system includes a cooling fan 6, a fresh air inlet and an indoor return air outlet 10 arranged on the evaporator side of the device. The said fresh air inlet is a three-way mouth with an outdoor fresh air inlet 15 and an indoor return air inlet 10. Outdoor fresh air inlet 15 end is provided with air filter 13, air purifier 12 and fresh air control valve 14, is provided with return air control valve 11 at its indoor return air inlet 10 ends. During the fresh air working condition, the outdoor fresh air enters the device through the outdoor fresh air inlet 15, and after preliminary air treatment by the air filter 13 and the air purifier 12, it exchanges heat with the evaporator 5 and dehumidifies it. The outlet 9 is sent into the room; when it is required to dehumidify the indoor return air, open the return air control valve 11 and close the fresh air control valve 14, the indoor return air enters the fresh air treatment system through the indoor return air inlet 10, and dehumidifies through the evaporator 5 Then send it back indoors. When it is necessary to process the fresh air and dehumidify the indoor return air at the same time, the return air regulating valve 11 and the fresh air regulating valve 14 can be opened at the same time, and the ratio of the indoor return air to the outdoor fresh air can be freely adjusted by controlling the opening of the regulating valve.

The exhaust system includes a cooling fan 7 located on the condenser side of the device, an exhaust outlet and an indoor exhaust inlet 8. The exhaust outlet is a three-way port with an outdoor exhaust outlet 16 and an indoor air supply outlet 19. 16 ends of its outdoor exhaust air outlet are provided with an air discharge regulating valve 17, and its indoor air supply outlet 19 ends are provided with an air supply regulating valve 18. In the ventilation mode, the exhaust air enters the device through the indoor exhaust air inlet 8, exchanges heat with the condenser 3, and then uses the heat dissipation fan 7 to be exhausted to the outside through the outdoor exhaust air outlet 16. When indoor dehumidification is required in winter, close the exhaust air regulating valve 17, open the air supply regulating valve 18, and the indoor air is sent back indoors through the indoor air supply outlet 19 after being dehumidified.

When the device described in the utility model performs dehumidification operation alone, the exhaust air outlet can be switched, and the exhaust air can be sent back to the room. The heat absorbed by the exhaust air is still returned to the room, so the indoor temperature will not be lowered, avoiding the traditional When the dehumidifier is in dehumidification operation, the temperature of the room will drop, which will cause discomfort to people, and there is no need to start other air-conditioning devices to heat the room during the dehumidification operation to maintain the room temperature, thus saving the operation of the air-conditioning device due to the additional heating demand caused by the dehumidification operation. cost.

Claims (2)

1, a kind ofly be used for indoor fresh air dehumidification, the device of purification and air draft recuperation of heat, it is characterized in that having one and on the wall side, have new wind inlet, indoor new wind outlet (9) and indoor exhaust wind inlet (8), the housing of wind exhausting outlet (20), in housing (20), be provided with by compressor (1), four-way change-over valve (2), condenser (3), choke valve (4), the air-conditioning unit that evaporimeter (5) is formed, the gas outlet of compressor (1) joins by the siphunculus mouth of four-way change-over valve (2) with condenser (3) or evaporimeter (5), another siphunculus mouth of condenser (3) and evaporimeter (5) interconnects by choke valve (4), the air inlet of compressor (1) is inserted in the gas outlet of four-way change-over valve (2), vaporizer side at housing (12) is equipped with a cold scattering blower fan (6), at the condenser side of housing (12) cooling fan (7) is housed.

2, the device that is used for indoor fresh air dehumidification, purification and air draft recuperation of heat according to claim 1, it is characterized in that said new wind inlet is a triplet type mouth with outdoor new wind inlet (15) and indoor return air inlet (10), be provided with air cleaner (13), air purifier (12) and new wind control valve (14) at its outdoor new wind inlet (15) end, be provided with return air control valve (11) at its indoor return air inlet (10) end; Said wind exhausting outlet is a triplet type mouth with outdoor wind exhausting outlet (16) and indoor air-supply outlet (19), is provided with air draft control valve (17) at its outdoor wind exhausting outlet (16) end, is provided with air-supply control valve (18) at its indoor air-supply outlet (19) end.

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