CN219120654U - Split type double-cold-source total-heat fresh air dehumidifying air conditioner integrated unit - Google Patents
Split type double-cold-source total-heat fresh air dehumidifying air conditioner integrated unit Download PDFInfo
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- CN219120654U CN219120654U CN202223543426.0U CN202223543426U CN219120654U CN 219120654 U CN219120654 U CN 219120654U CN 202223543426 U CN202223543426 U CN 202223543426U CN 219120654 U CN219120654 U CN 219120654U
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Abstract
The utility model provides a split type double-cold-source total-heat fresh air dehumidifying and air conditioning integrated machine unit, which comprises: the indoor unit, the outdoor unit, the air quality sensor and the heat exchange system; the heat exchange system includes: the system comprises an evaporator, a reheat condenser, a variable frequency compressor, an outdoor condenser, an outdoor fan and a water source heat exchange system; the indoor unit comprises a shell; the right side of the shell is provided with a first air return opening and an air supply opening which are communicated with the indoor space; the left side of the shell is provided with a fresh air port and an air outlet communicated with the outside of the shell, and a second air return port communicated with the inside of the shell; the fresh air port is provided with a fresh air valve, the exhaust port is provided with an exhaust fan, and the second return air port is provided with a return air valve; the surface cooler, the evaporator, the reheat condenser, an air supply fan and a heat exchange core body are arranged in the shell; the multifunctional machine has the functions of fresh air and exhaust air heat exchange and dehumidification, refrigeration and heating, and solves the defects of the traditional integrated machine.
Description
Technical Field
The utility model relates to a split type double-cold-source total-heat fresh air dehumidifying air conditioner integrated unit.
Background
The fresh air exchanger is an independent air treatment system consisting of an air supply system and an exhaust system, and is used for exchanging outdoor air and indoor air through a fresh air exchange core to finish indoor air purification.
At present, many scenes need to have functions such as fresh air, heat recovery, dehumidification, refrigeration, heating, and the like, a fresh air exchanger, an air conditioner and a dehumidifier need to be installed, and the existing equipment rarely integrates the functions into a multifunctional machine at the same time, because: 1. after the functions are combined together, the internal structure is complex, the production cost is high, the installation cost is high, and the power consumption is extremely high; 2. in addition, the temperature of the air outlet is too high after dehumidification, so that the heat load is increased indoors; these problems in turn result in high operating costs and failure to meet the needs of the market business.
Disclosure of Invention
The utility model aims to overcome the defects and provide a split type double-cold-source total-heat fresh air dehumidifying air conditioner integrated unit.
The utility model adopts the following technical scheme:
a split type double-cold-source total-heat fresh air dehumidifying air conditioner integrated unit comprises: the indoor unit, the outdoor unit, the air quality sensor and the heat exchange system; the heat exchange system includes: the system comprises an evaporator, a reheat condenser, a variable frequency compressor, an outdoor condenser, an outdoor fan and a water source heat exchange system; the water source heat exchange system comprises a surface cooler and a cold source and a heat source.
The indoor unit comprises a shell; the right side of the shell is provided with a first air return opening and an air supply opening which are communicated with the indoor space; the left side of the shell is provided with a fresh air port and an air outlet communicated with the outside of the shell, and a second air return port communicated with the inside of the shell; the fresh air port is provided with a fresh air valve, the exhaust port is provided with an exhaust fan, and the second return air port is provided with a return air valve; the shell is internally provided with the surface cooler, the evaporator and the reheat condenser, and is also provided with an air supply fan and a heat exchange core body.
The fresh air port and the second air return port are sequentially communicated with the air supply fan, the heat exchange core body, the surface cooler, the evaporator, the reheating condenser and the air supply port to form an air supply duct; the air return opening is sequentially communicated with the heat exchange core body and the air outlet to form an air return channel; the air quality sensor is arranged indoors; an outdoor coil temperature sensor is installed on the outdoor condenser, and an indoor coil temperature sensor is installed on the evaporator.
The variable frequency compressor is communicated with the outdoor condenser, the reheat condenser and the evaporator through the four-way valve to form a loop; the surface cooler is communicated with the cold and heat source through a water valve; and the controller is used for receiving the data of the air quality sensor, the outdoor coil temperature sensor and the indoor coil temperature sensor and controlling the operation or closing of the fresh air valve, the return air valve, the air supply fan and the heat exchange system.
Preferably, a primary filter screen is arranged between the air return opening and the heat exchange core body; the inlet end of the air supply fan is provided with a high-efficiency filter screen.
Preferably, an air inlet temperature sensor and an air inlet humidity sensor are arranged between the heat exchange core body and the surface cooler; an air outlet temperature sensor is arranged at the air supply outlet; the controller receives information of the air inlet temperature sensor, the air inlet humidity sensor and the air outlet temperature sensor.
Preferably, the water valve is a two-way electric regulating valve.
Preferably, the controller is a single-chip microcomputer.
The beneficial effects of the utility model are as follows:
1. combines the functions of the original fresh air machine, dehumidifier and air conditioner, has the functions of fresh air and exhaust heat exchange, dehumidification, refrigeration and heating, belongs to a multifunctional machine, and really realizes multiple functions of one machine.
2. The fluorine system and water system double-source refrigeration, dehumidification and heating are adopted, the effect is more obvious, and a user can obtain comfortable experience more quickly.
3. The electronic expansion valve is used for regulating the flow of the refrigerant, the refrigerant is automatically regulated to the optimal effect according to different climatic conditions, the compressor adopts a variable-frequency enthalpy-increasing compressor, and the compressor can normally operate in cold areas and is applicable to different areas; meanwhile, the water source-refrigerating system adopts a two-way electric valve to automatically adjust water flow under different working conditions, and the system is more optimal and reasonable.
4. The split type air conditioner is more convenient to maintain and repair by adopting a split type air conditioner, the traditional condenser is divided into two parts, the variable frequency compressor of the heating part and the heat dissipation part of the condenser are arranged on the outdoor side, and the evaporator and the reheat condenser are arranged on the indoor side, so that the problem that the temperature of the air outlet is too high after the dehumidification of the original one-way flow fresh air dehumidifier unit with an integrated structure is solved, and the split type air conditioner is efficient and energy-saving.
Drawings
Fig. 1 is a schematic view of an indoor unit according to the present utility model.
Fig. 2 is a schematic diagram of the present utility model.
Fig. 3 is a schematic diagram of the present utility model.
Fig. 4 is a schematic diagram of the present utility model.
Fig. 5 is a schematic diagram of a water source heat exchange system of the present utility model.
Detailed Description
In order to make the purpose and technical scheme of the present utility model more clear, the present utility model is further described below with reference to the accompanying drawings and examples:
the split type double-cold-source total-heat fresh air dehumidifying air conditioner integrated unit as shown in fig. 1 to 5 comprises: indoor unit, outdoor unit, air quality sensor (not shown), heat exchange system; the heat exchange system includes: an evaporator 61, a reheating condenser 62, a variable frequency compressor 63, an outdoor condenser 64, an outdoor fan and a water source heat exchange system; wherein the water source heat exchange system comprises a surface cooler 65 and a cold and heat source; the variable frequency compressor muffler is connected with an air return temperature sensor, and the exhaust pipe is connected with an exhaust temperature sensor and is used for protecting and stopping when the exhaust temperature of the refrigerating system is too high; wherein the utility model adopts an air source heat pump (not shown in the figure), and the temperature of liquid in the water tank is controlled by the air source heat pump to generate cold liquid or hot liquid; the surface cooler 65 forms a loop with the water tank through a water valve, wherein the water valve is a two-way electric regulating valve, water flow under different working conditions is automatically regulated, and the system is better and more reasonable.
The indoor unit comprises a shell 1; the right side of the shell 1 is provided with a first air return opening 21 and an air supply opening 3 which are communicated with the indoor space; the left side of the shell is provided with a fresh air port 4 and an air outlet 5 which are communicated with the outside of the shell, and a second air return port 22 which is communicated with the inside of the shell; the fresh air port 4 is provided with a fresh air valve (not shown in the figure), the exhaust port is provided with an exhaust fan 51, and the second air return port 22 is provided with an air return valve (not shown in the figure); the housing 1 is provided with an air blower 8 and a heat exchange core 7, and the surface cooler 65, the evaporator 61 and the reheat condenser 62 are also provided in the housing 1.
The fresh air port 4 and the second air return port 22 are sequentially communicated with the air supply fan 8, the heat exchange core 7, the surface cooler 65, the evaporator 61, the reheat condenser 62 and the air supply port 3 to form an air supply channel. The first air return opening 21 is sequentially communicated with the heat exchange core 7 and the air outlet 5 to form an air return channel; an air inlet temperature sensor and an air inlet humidity sensor are arranged between the heat exchange core 7 and the surface cooler 65; an air outlet temperature sensor is arranged at the air supply outlet 3; a primary filter screen 91 is arranged between the first air return opening 21 and the heat exchange core 7; the inlet end of the air supply fan 8 is provided with a high-efficiency filter screen 92, and the primary filter screen 91 and the high-efficiency filter screen 92 filter the passing gas.
The air quality sensor is arranged indoors; an outdoor coil temperature sensor is installed on the outdoor condenser, and an indoor coil temperature sensor is installed on the evaporator.
The variable frequency compressor is communicated with the outdoor condenser, the reheat condenser and the evaporator through the four-way valve to form a loop; the exhaust pipe of the variable frequency compressor is communicated with an outdoor condenser through a four-way valve, the outdoor condenser forms a loop through a flash evaporator, a first filter, a first electromagnetic valve, a liquid storage tank, an electronic expansion valve, a second filter, an evaporator and an air return pipe passing through the four-way valve and the variable frequency compressor, wherein the first electromagnetic valve is connected with a second one-way valve in parallel, and the flowing direction of the second one-way valve is that liquid flows from the liquid storage tank to the first filter; a branch is further arranged between the first filter and the liquid storage tank, and the branch is as follows: the first filter is connected with the reheating condenser through the second electromagnetic valve, and the reheating condenser is connected with the liquid storage tank through the first one-way valve, wherein the flowing direction of the first one-way valve is the direction of liquid flowing from the reheating condenser to the liquid storage tank; the flash evaporator is connected with the variable frequency compressor through an enthalpy-increasing electromagnetic valve, and is used for opening the enthalpy-increasing electromagnetic valve when the outdoor environment temperature is too low and the exhaust temperature is too high, and the low-temperature low-pressure gaseous refrigerant after heat exchange of the flash evaporator supplements air for the variable frequency compressor, so that the compression ratio is reduced, and the efficiency of a refrigerating system is improved.
The controller (not shown in the figure), this embodiment is a single chip microcomputer, and receives the data of the air quality sensor, the return air temperature sensor, the exhaust air temperature sensor, the outdoor coil temperature sensor, the indoor coil temperature sensor, the air inlet humidity sensor and the air outlet temperature sensor, and controls the fresh air valve, the return air valve, the air supply fan and the heat exchange system (including the variable frequency compressor and the electronic expansion valve) to operate or close.
The inventor discovers through long-term research that the heat dissipation of the cold suspicious device is a main cause of causing the high temperature of the air outlet after dehumidification and bringing heat load to the room; the utility model divides the traditional condenser into two parts, the variable frequency compressor of the heating part and the heat dissipation part of the condenser are arranged on the outdoor side, the evaporator and the reheat condenser are arranged on the indoor side, and the problem that the temperature of the air outlet is too high after the dehumidification of the unidirectional flow fresh air dehumidifier unit with the original integrated structure is solved; the multifunctional air conditioner combines the functions of the original fresh air machine, the dehumidifier and the air conditioner, has the functions of fresh air and exhaust air heat exchange, and has the functions of dehumidification, refrigeration and heating, thereby really realizing multiple functions of one machine.
The principle of the utility model comprises a ventilation system principle, a direct expansion-refrigeration system function principle and a water source heat exchange system principle.
1. Ventilation system principle:
1. fresh air mode: when an indoor air quality sensor detects that indoor air quality (PM 2.5, VOC, CO2 and the like) is poor, the unit is automatically opened, at the moment, a fresh air valve is opened, a return air valve is closed, an air supply fan is opened, an air exhaust fan is opened, a water valve is closed, and an outdoor unit is closed; the outdoor fresh air and the indoor return air are respectively filtered through the fresh air port and the first return air port and respectively pass through the fresh air efficient filter screen and the return air primary filter screen, and are subjected to heat exchange through the heat exchange core body, the introduced outdoor fresh air and the discharged indoor return air are finally discharged outdoors through the exhaust fan, the outdoor fresh air passes through the surface air cooler, the evaporator and the reheating condenser (the outdoor unit is not started in the mode), and finally the outdoor fresh air is fed into the room by the air feeder. When the indoor air quality sensor detects that the indoor environment quality (PM 2.5, VOC, CO2 and the like) reaches a certain range value of the set value, the wind speeds of the fresh air fan and the exhaust fan can be automatically adjusted, the energy consumption is reduced, and the indoor fresh air is ensured.
2. Fresh air dehumidifying mode: when an indoor air quality sensor detects that the indoor environment quality (PM 2.5, VOC, CO2 and the like) is poor, the unit is automatically started, at the moment, a fresh air valve is opened, a return air valve is closed, an air supply fan is opened, and an exhaust fan is opened; when the air outlet temperature sensor detects that the air outlet temperature is too high, the water valve is opened, and the outdoor unit is opened; the outdoor fresh air and the indoor return air respectively pass through the fresh air port and the first return air port, are respectively filtered by the high-efficiency filter screen and the primary filter screen, and then pass through the heat exchange core body at the same time, the introduced outdoor fresh air and the discharged indoor return air are subjected to heat exchange, the indoor return air is finally discharged outdoors through the exhaust fan, the outdoor fresh air (moist air) is subjected to precooling dehumidification through the surface cooler (the external water tank supplies cold water for the surface cooler in the mode), and then is subjected to deep dehumidification through the evaporator, and then is heated through the reheat condenser, and finally is sent into the room by the air feeder, so that the indoor required effect is achieved; when the indoor air quality sensor detects that the indoor air quality (PM 2.5, VOC, CO2 and the like) reaches a certain range value of a set value, the wind speeds of the air supply fan and the air exhaust fan are automatically adjusted, so that the energy consumption is reduced; the dehumidified condenser water is discharged outside through a drain pipe.
3. Fresh air refrigeration mode: when the indoor air quality sensor detects that the indoor air quality (PM 2.5, VOC, CO2 and the like) is poor in summer use, the unit is automatically started, at the moment, the fresh air valve is opened, the return air valve is closed, the air supply fan is opened, and the exhaust fan is opened; when the air outlet temperature sensor detects that the air outlet temperature is too high, the water valve is opened, and the outdoor unit is opened; the outdoor fresh air and the indoor return air respectively pass through the fresh air port and the first return air port, are respectively filtered by the high-efficiency filter screen and the primary filter screen, and then pass through the heat exchange core body at the same time, the introduced outdoor fresh air and the discharged indoor return air are subjected to heat exchange, the indoor return air is finally discharged outdoors through the exhaust fan, the outdoor fresh air is subjected to precooling cooling through the surface cooler (the external water tank supplies cold water for the surface cooler in the mode), then is subjected to deep cooling through the evaporator, and then passes through the reheat condenser (the mode is not effective), and finally is sent into the room by the air feeder, so that the indoor required effect is achieved; when the indoor air quality sensor detects that the indoor air quality (PM 2.5, VOC, CO2 and the like) reaches a certain range value of a set value, the wind speeds of the air supply fan and the air exhaust fan are automatically adjusted, so that the energy consumption is reduced; the cooled and condensed condenser water is discharged outdoors through a drain pipe.
4. Fresh air heating mode: when the indoor air quality sensor detects that the indoor environment quality (PM 2.5, VOC, CO2 and the like) is poor in winter use, the unit is automatically started, at the moment, the fresh air valve is opened, the return air valve is closed, the air supply fan is opened, and the exhaust fan is opened; when the air outlet temperature sensor detects that the air outlet temperature is too low, the water valve is opened, and the outdoor unit is opened. The outdoor fresh air and the indoor return air are respectively filtered by a fresh air port and a first return air port, respectively pass through a high-efficiency filter screen and a primary filter screen, and then pass through a heat exchange core body at the same time, the introduced outdoor fresh air and the discharged indoor return air are subjected to heat exchange, the indoor return air is finally discharged outdoors through an exhaust fan, the outdoor fresh air is preheated and warmed up through a surface cooler (an external water tank supplies hot water for the surface cooler in the mode), then is subjected to deep warming through an evaporator, and then passes through a reheat condenser (the mode does not work), and finally is sent into a room by a blower, so that the indoor required effect is achieved; when the indoor air quality sensor detects that the indoor environment quality (PM 2.5, VOC, CO2 and the like) reaches a certain range value of the set value, the wind speeds of the air supply fan and the air exhaust fan can be automatically adjusted, so that the energy consumption is reduced.
5. Internal circulation dehumidification mode: when the air inlet humidity sensor detects that the indoor environment humidity is too high, the air feeder is turned on, the exhaust fan is turned off, the fresh air valve is turned off, the return air valve is turned on, the outdoor unit is turned on, and the water valve is turned on; indoor return air (moist air) passes through the second return air port, enters the high-efficiency filter screen through the return air valve to be filtered and purified, is pre-cooled and dehumidified through the surface cooler (the external water tank supplies cold water for the surface cooler in the mode), is deeply dehumidified through the evaporator, is heated through the reheat condenser, is finally sent into a room by the air feeder, achieves the indoor required effect, and the dehumidified condensate water is discharged out of the room through the drain pipe.
6. Internal circulation heating mode: when the indoor air inlet temperature sensor detects that the indoor air inlet temperature is low, the air feeder is started, the exhaust fan is closed, the fresh air valve is closed, the return air valve is opened, the outdoor fan is opened, and the water valve is opened; indoor return air passes through the second return air inlet, enters the high-efficiency filter screen through the return air valve to be filtered and purified, is heated through the surface cooler (hot water is provided for the surface cooler outside in the mode), is heated through the evaporator deeply, passes through the reheat condenser (the mode does not work), and is finally sent into the room by the air feeder.
7. Internal circulation cooling mode: when the indoor air inlet temperature sensor detects that the indoor air inlet temperature is higher in summer, the air feeder is turned on, the exhaust fan is turned off, the fresh air valve is turned off, the return air valve is turned on, the outdoor unit is turned on, and the water valve is turned on; indoor return air passes through the second return air inlet, enters the high-efficiency filter screen through the return air valve to be filtered and purified, is heated through the surface cooler (cold water is provided for the surface cooler outside in the mode), is cooled deeply through the evaporator, passes through the reheat condenser (the mode does not work), and is finally sent into a room by the air feeder.
2. Direct expansion-refrigeration system functional principle:
1. fresh air refrigeration mode: in this mode, as shown in fig. 2, when the air outlet temperature sensor is higher than the set air outlet temperature, the variable frequency compressor is opened, the first electromagnetic valve is opened, the second electromagnetic valve is closed, the low-temperature low-pressure gaseous refrigerant returned to the variable frequency compressor is compressed by the variable frequency compressor and becomes high-temperature high-pressure gaseous refrigerant, the high-temperature high-pressure gaseous refrigerant flows out through the four-way valve, the high-pressure medium-temperature liquid refrigerant enters the flash evaporator after entering the outdoor condenser for heat dissipation, the flash evaporator is filtered by the first filter, then enters the liquid storage tank for liquid storage through the first electromagnetic valve, the low-temperature low-pressure gaseous-liquid mixture is changed into low-temperature low-pressure gas-liquid mixture after being cooled and throttled by the electronic expansion valve, then enters the evaporator for evaporation and becomes low-temperature low-pressure gaseous refrigerant, and finally returns to the variable frequency compressor for repeated circulation. The outdoor fresh air is cooled and refrigerated through an evaporator and is sent into the room, so that the refrigerating effect is realized; the frequency conversion compressor adjusts the frequency according to the difference value between the air outlet temperature sensor and the set air outlet temperature, so as to achieve the effect of energy conservation; the electronic expansion valve is adjusted according to the superheat degree between the return air temperature and the indoor coil temperature so as to achieve the optimal state of system operation.
2. Fresh air heating mode: in this mode, when the air outlet temperature sensor is lower than the set air outlet temperature, the variable frequency compressor is opened, the first electromagnetic valve is closed, the second electromagnetic valve is closed, the low-temperature low-pressure gaseous refrigerant returned to the variable frequency compressor is compressed by the variable frequency compressor and becomes high-temperature high-pressure gaseous refrigerant, the high-temperature high-pressure gaseous refrigerant flows out through the four-way valve, enters the evaporator to dissipate heat and becomes high-pressure medium-temperature liquid refrigerant, the high-temperature medium-temperature liquid refrigerant is filtered by the second filter, then becomes low-temperature low-pressure gas-liquid mixture after throttling and cooling by the electronic expansion valve, enters the liquid storage tank to store liquid, then enters the flash evaporator to exchange heat by the first filter, then enters the outdoor condenser to evaporate and becomes low-temperature low-pressure gaseous refrigerant, and finally returns to the variable frequency compressor, so that the circulation is repeated; the outdoor fresh air is heated by an evaporator and is sent into the room to realize the heating effect; the frequency conversion compressor adjusts the frequency according to the difference value between the air outlet temperature sensor and the set air outlet temperature, so as to achieve the effect of energy conservation; the electronic expansion valve is adjusted according to the superheat degree between the return air temperature and the temperature of the outdoor coil pipe so as to achieve the optimal state of system operation. When the outdoor environment temperature is too low and the exhaust temperature is too high, the enthalpy-increasing electromagnetic valve is opened, the low-temperature low-pressure gaseous refrigerant after heat exchange of the flash evaporator supplements air for the variable frequency compressor, the compression ratio is reduced, and the efficiency of the refrigerating system is improved.
3. Fresh air dehumidifying mode: in this mode, as shown in fig. 4, when the air outlet temperature sensor is higher than the set air outlet temperature, the variable frequency compressor is opened, the first electromagnetic valve is closed, the second electromagnetic valve is opened, the low-temperature low-pressure gaseous refrigerant returned to the variable frequency compressor is compressed by the variable frequency compressor and becomes high-temperature high-pressure gaseous refrigerant, the high-temperature high-pressure gaseous refrigerant flows out through the four-way valve, the high-pressure medium-temperature liquid refrigerant enters the flash evaporator after entering the outdoor condenser for heat dissipation, is filtered by the first filter, then enters the reheat condenser for heat dissipation through the second electromagnetic valve and becomes high-pressure medium-temperature liquid refrigerant, then flows into the liquid storage tank for storage through the first one-way valve, then flows into the low-temperature low-pressure gas-liquid mixture after cooling and throttling through the electronic expansion valve, then enters the evaporator for evaporation and becomes low-temperature low-pressure gaseous refrigerant, and finally returns to the variable frequency compressor for repeated circulation. Outdoor fresh air is cooled and dehumidified by an evaporator and is sent into a room, so that the dehumidification effect is realized. The outdoor fan has realized the constant temperature dehumidification effect according to the rotational speed that the difference of air-out temperature sensor and settlement air-out temperature was adjusted; the variable frequency compressor adjusts the pressure frequency according to the temperature of the coil pipe of the indoor evaporator, so as to achieve the effect of energy conservation; the electronic expansion valve is adjusted according to the superheat degree between the return air temperature and the temperature of the outdoor coil pipe so as to achieve the optimal state of system operation.
4. Internal circulation cooling mode: in the mode, when the air inlet temperature sensor is higher than the set air inlet temperature, the variable frequency compressor is opened, the first electromagnetic valve is opened, the second electromagnetic valve is closed, the low-temperature low-pressure gaseous refrigerant returned to the variable frequency compressor is compressed by the variable frequency compressor and then becomes high-temperature high-pressure gaseous refrigerant, the high-temperature high-pressure gaseous refrigerant flows out through the four-way valve, the high-pressure medium-temperature liquid refrigerant enters the flash evaporator after entering the outdoor condenser for heat dissipation, the flash evaporator is filtered by the first filter, the liquid is then filtered by the first electromagnetic valve, the liquid is then cooled and throttled by the electronic expansion valve and then becomes low-temperature low-pressure gas-liquid mixture, the low-temperature low-pressure gas-liquid mixture is then evaporated by the evaporator and finally returns to the variable frequency compressor, and the circulation is repeated. The outdoor fresh air is cooled and refrigerated through an evaporator and is sent into the room, so that the refrigerating effect is realized; the frequency conversion compressor adjusts the frequency according to the difference value between the air inlet temperature sensor and the set air inlet temperature, so as to achieve the effect of energy conservation; the electronic expansion valve is adjusted according to the superheat degree between the return air temperature and the indoor coil temperature so as to achieve the optimal state of system operation.
5. Internal circulation heating mode: in the mode, when the air inlet temperature sensor is lower than the set air inlet temperature, the variable frequency compressor is opened, the first electromagnetic valve is closed, the second electromagnetic valve is closed, the low-temperature low-pressure gaseous refrigerant returned to the variable frequency compressor is compressed by the variable frequency compressor and then becomes high-temperature high-pressure gaseous refrigerant, flows out through the four-way valve, enters the evaporator to dissipate heat and then becomes high-pressure medium-temperature liquid refrigerant, then is filtered by the second filter, then becomes low-temperature low-pressure gas-liquid mixture after being throttled and cooled by the electronic expansion valve, enters the liquid storage tank to store liquid, then passes through the second one-way valve, then enters the flash evaporator to exchange heat through the first filter, then enters the outdoor condenser to evaporate and become low-temperature low-pressure gaseous refrigerant, and finally returns to the variable frequency compressor to be recycled; the outdoor fresh air is heated by an evaporator and is sent into the room to realize the heating effect; the frequency conversion compressor adjusts the frequency according to the difference value between the air inlet temperature sensor and the set air inlet temperature, so as to achieve the effect of energy conservation; the electronic expansion valve is adjusted according to the superheat degree between the return air temperature and the temperature of the outdoor coil pipe so as to achieve the optimal state of system operation. When the outdoor environment temperature is too low and the exhaust temperature is too high, the enthalpy-increasing electromagnetic valve is opened, the low-temperature low-pressure gaseous refrigerant after heat exchange of the flash evaporator supplements air for the variable frequency compressor, the compression ratio is reduced, and the efficiency of the refrigerating system is improved.
6. Internal circulation dehumidification mode: in the mode, when the air inlet humidity sensor is higher than the set air inlet humidity, the variable frequency compressor is opened, the first electromagnetic valve is closed, the second electromagnetic valve is opened, the low-temperature low-pressure gaseous refrigerant returned to the variable frequency compressor is compressed by the variable frequency compressor and then becomes high-temperature high-pressure gaseous refrigerant, the high-temperature high-pressure gaseous refrigerant flows out through the four-way valve, the high-pressure medium-temperature liquid refrigerant enters the flash evaporator after entering the outdoor condenser for heat dissipation, is filtered by the first filter, then enters the reheat condenser for heat dissipation through the second electromagnetic valve and then becomes high-pressure medium-temperature liquid refrigerant, and then flows into the liquid storage tank for storage through the first one-way valve, then flows into the electronic expansion valve for cooling and throttling and then becomes low-temperature low-pressure gas-liquid mixture, passes through the second filter, then enters the evaporator for evaporation and becomes low-temperature low-pressure gaseous refrigerant, and finally returns to the variable frequency compressor for repeated circulation. Outdoor fresh air is cooled and dehumidified by an evaporator and is sent into a room, so that the dehumidification effect is realized. The outdoor fan has realized the constant temperature dehumidification effect according to the rotational speed that the difference of air-out temperature sensor and settlement air-out temperature was adjusted; the frequency conversion compressor adjusts the frequency according to the temperature of the indoor coil pipe, so as to achieve the effect of energy conservation; the electronic expansion valve is adjusted according to the superheat degree between the return air temperature and the indoor coil temperature so as to achieve the optimal state of system operation.
3. The principle of the water source heat exchange system is as follows:
1. fresh air refrigeration mode: in the mode, when the air outlet temperature sensor is higher than the set air outlet temperature, the two-way electric regulating valve is opened, cold water enters the two-way electric regulating valve from the water tank, then enters the surface cooler from the two-way electric regulating valve, and finally returns to the water tank to be circulated repeatedly; the outdoor fresh air is cooled and refrigerated by the surface cooler and is sent into the room, so that the refrigerating effect is realized; the opening degree of the two-way electric regulating valve is regulated according to the difference value between the air outlet temperature sensor and the set air outlet temperature, so that the constant-temperature refrigeration effect is achieved.
2. Fresh air heating mode: in the mode, when the air outlet temperature sensor is lower than the set air outlet temperature, the two-way electric regulating valve is opened, hot water enters the two-way electric regulating valve from the water tank, then enters the surface cooler from the two-way electric regulating valve, and finally returns to the external water tank to be circulated repeatedly; the outdoor fresh air is heated by a surface cooler and is sent into the room to realize the heating effect; the opening degree of the two-way electric regulating valve is regulated according to the difference value between the air outlet temperature sensor and the set air outlet temperature, so that the constant-temperature heating effect is achieved.
3. Fresh air dehumidifying mode: in the mode, when the air outlet temperature sensor is higher than the set air outlet temperature, the two-way electric regulating valve is opened, cold water enters the two-way electric regulating valve from the water tank, then enters the surface cooler from the two-way electric regulating valve, and finally returns to the water tank to be circulated repeatedly; the outdoor fresh air is cooled and dehumidified by a surface cooler and is sent into a room, so that the dehumidification effect is realized; the opening degree of the two-way electric regulating valve is regulated according to the difference value between the air outlet temperature sensor and the set air outlet temperature, so that the constant-temperature dehumidification effect is achieved.
4. Internal circulation cooling mode: in the mode, when the air inlet temperature sensor is higher than the set air inlet temperature, the two-way electric regulating valve is opened, cold water enters the two-way electric regulating valve from the water tank, then enters the surface cooler from the two-way electric regulating valve, and finally returns to the water tank to be circulated repeatedly; the indoor return air is cooled and refrigerated by a surface cooler and is sent into the room, so that the refrigerating effect is realized; the opening of the two-way electric regulating valve is regulated according to the difference value between the air inlet temperature sensor and the set air inlet temperature, so that the constant-temperature refrigeration effect is achieved.
5. Internal circulation heating mode: in the mode, when the air inlet temperature sensor is lower than the set air inlet temperature, the two-way electric regulating valve is opened, hot water enters the two-way electric regulating valve from the water tank, then the two-way electric regulating valve enters the surface cooler, and finally returns to the water tank to be circulated repeatedly; the outdoor fresh air and the indoor return air are heated by the surface cooler and sent into the room to realize the heating effect; the opening of the two-way electric regulating valve is regulated according to the difference value between the air inlet temperature sensor and the set air inlet temperature, so that the constant-temperature heating effect is achieved.
6. Internal circulation dehumidification mode: in the mode, when the air inlet humidity sensor is higher than the set air inlet humidity, the two-way electric regulating valve is opened, cold water enters the two-way electric regulating valve from the water tank, then enters the surface cooler from the two-way electric regulating valve, and finally returns to the water tank to be circulated repeatedly; the outdoor fresh air and the indoor return air are cooled and dehumidified by the surface cooler and are sent into the room, so that the dehumidification effect is realized; the opening degree of the two-way electric regulating valve is regulated according to the difference value between the air inlet humidity sensor and the set air inlet humidity, so that the constant-temperature dehumidification effect is achieved.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two elements; the specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The components adopted by the utility model are all universal standard components or components known by the skilled person, and the structure and the principle of the components are all known by the skilled person through technical manuals or through routine experimental methods; such as control of a single chip microcomputer, structural principles and connection of a heat exchange system, etc., the present utility model is not described in detail.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present utility model still fall within the scope of the present utility model.
Claims (5)
1. The utility model provides a split type double-cold source total heat new trend dehumidification air conditioner all-in-one unit which characterized in that includes:
the indoor unit, the outdoor unit, the air quality sensor and the heat exchange system;
the heat exchange system includes: the system comprises an evaporator, a reheat condenser, a variable frequency compressor, an outdoor condenser, an outdoor fan and a water source heat exchange system; wherein the water source heat exchange system comprises a surface cooler and a cold and heat source;
the indoor unit comprises a shell;
the right side of the shell is provided with a first air return opening and an air supply opening which are communicated with the indoor space;
the left side of the shell is provided with a fresh air port and an air outlet communicated with the outside of the shell, and a second air return port communicated with the inside of the shell; the fresh air port is provided with a fresh air valve, the exhaust port is provided with an exhaust fan, and the second return air port is provided with a return air valve;
the surface cooler, the evaporator, the reheat condenser, an air supply fan and a heat exchange core body are arranged in the shell;
the fresh air port and the second air return port are sequentially communicated with the air supply fan, the heat exchange core body, the surface cooler, the evaporator, the reheating condenser and the air supply port to form an air supply duct;
the air return opening is sequentially communicated with the heat exchange core body and the air outlet to form an air return channel;
the air quality sensor is arranged indoors;
an outdoor coil temperature sensor is arranged on the outdoor condenser, and an indoor coil temperature sensor is arranged on the evaporator;
the variable frequency compressor is communicated with the outdoor condenser, the reheat condenser and the evaporator through four-way valves to form a loop;
the surface cooler is communicated with the cold and heat source through a water valve;
and the controller is used for receiving the data of the air quality sensor, the outdoor coil temperature sensor and the indoor coil temperature sensor and controlling the operation or closing of the fresh air valve, the return air valve, the air supply fan and the heat exchange system.
2. The split type double-cold-source total-heat fresh air dehumidifying air-conditioning integrated machine unit according to claim 1, wherein the split type double-cold-source total-heat fresh air dehumidifying air-conditioning integrated machine unit is characterized in that:
a primary filter screen is arranged between the air return opening and the heat exchange core body;
the inlet end of the air supply fan is provided with a high-efficiency filter screen.
3. The split type double-cold-source total-heat fresh air dehumidifying air-conditioning integrated machine unit according to claim 1, wherein the split type double-cold-source total-heat fresh air dehumidifying air-conditioning integrated machine unit is characterized in that:
an air inlet temperature sensor and an air inlet humidity sensor are arranged between the heat exchange core body and the surface cooler;
an air outlet temperature sensor is arranged at the air supply outlet;
the controller receives information of the air inlet temperature sensor, the air inlet humidity sensor and the air outlet temperature sensor.
4. The split type double-cold-source total-heat fresh air dehumidifying air-conditioning integrated machine unit according to claim 1, wherein the split type double-cold-source total-heat fresh air dehumidifying air-conditioning integrated machine unit is characterized in that:
the water valve is a two-way electric regulating valve.
5. The split type double-cold-source total-heat fresh air dehumidifying air-conditioning integrated machine unit according to claim 1, wherein the split type double-cold-source total-heat fresh air dehumidifying air-conditioning integrated machine unit is characterized in that:
the controller is a singlechip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223543426.0U CN219120654U (en) | 2022-12-30 | 2022-12-30 | Split type double-cold-source total-heat fresh air dehumidifying air conditioner integrated unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223543426.0U CN219120654U (en) | 2022-12-30 | 2022-12-30 | Split type double-cold-source total-heat fresh air dehumidifying air conditioner integrated unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219120654U true CN219120654U (en) | 2023-06-02 |
Family
ID=86531025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223543426.0U Active CN219120654U (en) | 2022-12-30 | 2022-12-30 | Split type double-cold-source total-heat fresh air dehumidifying air conditioner integrated unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219120654U (en) |
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2022
- 2022-12-30 CN CN202223543426.0U patent/CN219120654U/en active Active
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