CN204678572U - Based on evaporative cooling and heat pipe, heat pump united air-conditioner set - Google Patents

Abstract

The utility model is based on the combination of evaporative cooling, heat pipe and heat pump. The air conditioner unit includes an organic unit casing, and two upper and lower air passages are formed in the unit casing; an air pretreatment chamber and a sprayer are arranged in the upper air passage according to the air flow direction. There is a condenser, a throttle valve, a four-way reversing valve and a compressor at the rear of the condenser, and an air inlet and an air outlet are arranged on the top wall of the air pretreatment room and the condenser; There are indirect evaporative cooler, evaporator, direct evaporative cooler, water baffle and blower in the direction; the indirect evaporative cooler is connected with the air pretreatment chamber, the direct evaporative cooler is connected with the sprinkler, the condenser, throttle valve, The four-way reversing valve, compressor and evaporator are connected through a water pipe network. The air conditioning unit of the utility model combines evaporative cooling with heat pipes and heat pumps, which can not only make full use of indoor exhaust, but also adjust various air treatment processes according to changes in meteorological conditions to be suitable for various working conditions in different seasons.

Description

Air conditioning unit based on combination of evaporative cooling, heat pipe and heat pump

technical field

The utility model belongs to the technical field of air-conditioning and refrigeration equipment, in particular to an air-conditioning unit based on the combination of evaporative cooling, heat pipes and heat pumps.

Background technique

Evaporative cooling air-conditioning is an environmentally friendly, efficient, green, low-carbon and economical cooling method. Although evaporative cooling air-conditioning has a significant energy-saving effect, it cannot meet the winter working conditions, and evaporative cooling air-conditioning does not fully utilize and recycle indoor exhaust air.

Air source heat pumps have the advantages of wide application range, low operating cost, high safety, and adaptability to winter conditions. Defects of slower heat rate and lower thermal efficiency.

Combining evaporative cooling air conditioners with air source heat pumps, that is, combining evaporative cooling with heat pipes and heat pumps, can not only make full use of and recycle indoor exhaust air, but also flexibly adjust various air treatment processes according to changes in air conditioning requirements and meteorological conditions. It is suitable for various working conditions in different seasons to achieve the purpose of energy saving.

Utility model content

The purpose of this utility model is to provide an air conditioning unit based on the combination of evaporative cooling, heat pipes and heat pumps. Combining evaporative cooling with heat pipes and heat pumps can not only make full use of and recycle indoor exhaust air, but also meet the requirements of air conditioning and meteorological conditions. Change and adjust a variety of air treatment processes to apply to various working conditions in different seasons.

The technical solution adopted by the utility model is that the air conditioning unit based on the combination of evaporative cooling, heat pipe and heat pump includes an organic unit casing, and two air ducts, upper and lower, are formed in the unit casing;

In the upper air duct, there are air pretreatment chambers and showers arranged in sequence according to the flow direction of the air after entering, and a condenser, a throttle valve, a four-way reversing valve and a compressor are arranged behind the showers; the corresponding air pretreatment chamber above the air pretreatment chamber An air inlet is provided on the top wall of the unit housing, and an air valve is arranged inside the air inlet; an air outlet b is provided on the top wall of the unit housing corresponding to the condenser, and a fan is arranged inside the air outlet;

According to the flow direction of the air after entering, the lower air passage is equipped with an indirect evaporative cooler, an evaporator, a direct evaporative cooler, a water baffle b and a blower;

The indirect evaporative cooler is connected to the air pretreatment chamber; the direct evaporative cooler is connected to the sprinkler; the condenser, throttle valve, four-way reversing valve, compressor and evaporator are connected through a water pipe network to form an air source heat pump system .

The utility model is also characterized in that:

An air filter is arranged in the air pretreatment room near the air inlet; a heat pipe heat exchanger is arranged under the air filter; an air exhaust port a is arranged on the side of the air pretreatment room near the sprayer, and the bottom of the air pretreatment room A secondary air supply port is provided; the secondary air supply port is connected with the indirect evaporative cooler through the air supply channel.

The indirect evaporative cooler includes a heat exchange tube group. An indirect evaporative cooling water distributor, a water baffle a and a secondary exhaust fan are sequentially arranged above the heat exchange tube group; a circulating water tank a is arranged below the heat exchange tube group. The circulating water tank a is connected to the indirect evaporative cooling water distributor through the third water supply pipe; the secondary air channel is formed between the heat exchange tube group and the circulating water tank a, and the side wall of the unit housing corresponding to the secondary air channel is provided with a secondary air flow channel. Inlet.

The indirect evaporative cooling water distributor is composed of a water distribution pipe a and a plurality of nozzles a uniformly arranged on the water distribution pipe a and spraying water facing the heat exchange tube group. The water distribution pipe a is connected to the third water supply pipe; the third water supply pipe is provided with water pump a;

The heat exchange tube group is composed of a plurality of horizontally arranged heat exchange tubes.

The heat pipe heat exchanger consists of a plurality of heat pipes arranged horizontally.

The heat pipe consists of an evaporating section and a condensing section.

The sprayer includes a plurality of vertically arranged spray pipes, the lower ends of which are respectively connected to the communicating pipes; the communicating pipes are connected to the circulating water tank a in the direct evaporative cooler through the first water supply pipe; the spraying A plurality of high-pressure micro-mist nozzles spraying toward the air outlet a are evenly arranged on the pipe; a high-pressure water pump is arranged on the first water supply pipe.

The direct evaporative cooler includes packing, and a direct evaporative cooling water distributor is arranged above the packing; a circulating water tank b is arranged below the packing, and the circulating water tank b is connected to the direct evaporative cooling water distributor through a second water supply pipe.

The direct evaporative cooling water distributor is composed of a water distribution pipe b and a plurality of nozzles b evenly arranged on the water distribution pipe b and spraying water facing the filler; the water distribution pipe b is connected to the second water supply pipe; the second water supply pipe is provided with a water pump b.

The water outlet port of the condenser is connected to the throttle valve through the first water pipe, and the throttle valve is respectively connected to the water inlet end and the water outlet end of the evaporator through the second water pipe; the water inlet port of the condenser is switched to the four-way through the third water pipe valve connection; the four-way reversing valve is connected to the second water pipe through the fourth water pipe, and the four-way reversing valve is connected to the compressor through the fifth water pipe and the sixth water pipe respectively.

The beneficial effects of the utility model are:

1. The air conditioning unit of the present utility model combines indirect evaporative cooling technology with heat pipe technology and heat pump technology, effectively recovers the heat of indoor exhaust air, improves the heat exchange efficiency of heat pipes, improves the overall performance of the heat pump unit, and realizes Cascade utilization of energy.

2. The air-conditioning unit of the present utility model can flexibly adjust various air treatment processes according to changes in air-conditioning requirements and meteorological conditions, and realize operation modes in different seasons and various working conditions, thereby achieving the purpose of energy saving.

3. The air conditioning unit of the present utility model adopts high-pressure micro-mist direct evaporative cooling to cool down the cooling air flowing through the condenser, which saves the circulating water tank, reduces the volume of the unit, and makes the unit structure compact.

4. The air-conditioning unit of the present utility model realizes two-stage precooling and preheating of fresh air in different seasons, effectively reducing the energy consumption of the heat pump unit and saving operating costs.

Description of drawings

Fig. 1 is a structural schematic diagram of the air conditioning unit based on the combination of evaporative cooling, heat pipe and heat pump according to the present invention.

In the figure, 1. Air filter, 2. Heat pipe, 3. Air supply channel, 4. Circulating water tank a, 5. Secondary air inlet, 6. Heat exchange tube group, 7. Water pump a, 8. Water distribution pipe a , 9. Water retaining plate a, 10. Secondary exhaust fan, 11. Evaporator, 12. High pressure water pump, 13. Water pump b, 14. Circulating water tank b, 15. Water retaining plate b, 16. Water distribution pipe b, 17 .Packing, 18. Four-way reversing valve, 19. Throttle valve, 20. Condenser, 21. Air outlet b, 22. High-pressure micro-mist nozzle, 23. Air outlet a, 24. Air valve, 25. Air inlet, 26. Blower, 27. Compressor, 28. Secondary air outlet, 29. Air outlet, 30. Direct evaporative cooler, 31. First water supply pipe, 32. Second water supply pipe, 33. Spray Pipe, 34. Third water supply pipe, 35. Nozzle a, 36. Nozzle b, G1. First water pipe, G2. Second water pipe, G3. Third water pipe, G4. Fourth water pipe, G5. Fifth water pipe, G6 . The sixth water pipe.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model is based on an air-conditioning unit combined with evaporative cooling, heat pipe and heat pump. Its structure is shown in Figure 1, including an organic unit casing, and upper and lower air passages are formed in the unit casing; An air pretreatment chamber and a shower are provided. A condenser 20, a throttle valve 19, a four-way reversing valve 18 and a compressor 27 are arranged behind the shower. The top wall of the unit housing corresponding to the air pretreatment chamber is An air inlet 25 is arranged on the top, and an air outlet b21 is arranged on the top wall of the unit housing corresponding to the condenser 20; an indirect evaporative cooler, an evaporator 11, a direct evaporative cooler, and a baffle are arranged in the lower air passage according to the flow direction of the air after it enters. Water plate b15 and blower 26; the indirect evaporative cooler is connected to the air pretreatment room, the direct evaporative cooler is connected to the sprayer, the condenser 20, the throttle valve 19, the four-way reversing valve 18, the compressor 27 and the evaporator 11 are connected through a water pipe network to form an air source heat pump system.

An air valve 24 is arranged in the air inlet 25 .

A fan is arranged in the air outlet b21.

An air filter 1 is arranged in the air pretreatment room near the air inlet 25, and a heat pipe heat exchanger is arranged under the air filter 1; an air exhaust port a23 is arranged on the side of the air pretreatment room close to the sprayer; the air pretreatment The bottom of the chamber is provided with a secondary air supply port 28, and the secondary air supply port 28 is connected to the indirect evaporative cooler through the air supply channel 3.

The heat pipe heat exchanger is composed of a plurality of horizontally arranged heat pipes 2; the heat pipe 2 is composed of an evaporation section and a condensation section.

The sprinkler includes a plurality of vertical spray pipes 33, the lower ends of which are respectively connected to communication pipes, and the communication pipes are connected to the circulating water tank a14 in the direct evaporative cooler through the first water supply pipe 31 ; Each spray pipe 33 is evenly equipped with a plurality of high-pressure micro-mist nozzles 22 spraying toward the air outlet a23.

The first water supply pipe 31 is provided with a high-pressure water pump 12 .

The air source heat pump system is composed of a condenser 20, a throttle valve 19, a four-way reversing valve 18, a compressor 27 and an evaporator 11 connected through a water pipe network. The throttle valve 19 is connected, and the throttle valve 19 is respectively connected to the water inlet and outlet of the evaporator 11 through the second water pipe G2; the water inlet port of the condenser 20 is connected to the four-way reversing valve 18 through the third water pipe G3, The four-way reversing valve 18 is connected to the second water pipe G2 through the fourth water pipe G4, and the four-way reversing valve 18 is connected to the compressor 27 through the fifth water pipe G5 and the sixth water pipe G6 respectively.

The indirect evaporative cooler includes a heat exchange tube group 6, an indirect evaporative cooling water distributor, a water baffle a9 and a secondary exhaust fan 10 are arranged above the heat exchange tube group 6 in sequence; The circulating water tank a4 is connected to the indirect evaporative cooling water distributor through the third water supply pipe 34; the secondary air flow channel is formed between the heat exchange tube group 6 and the circulating water tank a4, and the side wall of the unit shell corresponding to the secondary air flow channel A secondary air inlet 5 is arranged on the top.

The indirect evaporative cooling water distributor is composed of a water distribution pipe a8 and a plurality of nozzles a35 uniformly arranged on the water distribution pipe a8 and spraying water facing the heat exchange tube group 6 . The water distribution pipe a8 is connected to the third water supply pipe 34 . The third water supply pipe 34 is provided with a water pump a7.

The heat exchange tube group 6 is composed of a plurality of horizontally arranged heat exchange tubes.

The direct evaporative cooler includes packing 17, a direct evaporative cooling water distributor is arranged above the packing 17, and a circulating water tank b14 is arranged under the packing 17, and the circulating water tank b14 is connected to the direct evaporative cooling water distributor through the second water supply pipe 32 .

The direct evaporative cooling water distributor is composed of a water distribution pipe b16 and a plurality of nozzles b36 uniformly arranged on the water distribution pipe b16 and spraying water facing the packing 17. The water distribution pipe b16 is connected to the second water supply pipe 32.

A water pump b13 is provided on the second water supply pipe 32 .

The utility model is based on an air-conditioning unit combined with evaporative cooling, heat pipe and heat pump, and its wind system has the following three air processing modes:

a. Two-stage indirect cooling and deep cooling dehumidification combined operation mode, which is suitable for summer:

In the hot summer, the outdoor fresh air enters the air pretreatment room in the casing of the unit through the air inlet 25. After being filtered by the air filter 1, the outdoor fresh air flows through the multiple heat pipes 2 in the heat pipe heat exchanger. The evaporation section realizes isohumidity cooling; the air after isohumidity cooling enters the indirect evaporative cooler through the air supply channel 3 for another isohumidity cooling; the air after two times of isohumidity cooling continues to flow through the evaporator 11, and evaporates Deep cooling and dehumidification under the action of the device 11 reaches the air supply state point; the air reaching the air supply state point is sent into the room by the air supply port 29 under the action of the fan 26 to reduce the indoor temperature;

In addition, in summer, the indoor exhaust air directly enters the indirect evaporative cooler in the unit shell through the secondary air inlet 5, and the indirect evaporative cooler performs humidification and cooling treatment on the exhaust air; 3. At the heat pipe heat exchanger that flows into the air pre-cooling room, the exhaust air is heat-exchanged by the condensation section of the heat pipe heat exchanger. After heat exchange, the temperature of the exhaust air increases; the exhaust air with increased temperature is sent out through the air outlet a23 Afterwards, it flows through the condenser 20, and is finally discharged from the exhaust outlet b21 arranged above the condenser 20.

b. Two-stage indirect cooling and direct evaporative cooling combined operation mode, which is suitable for transitional seasons:

In the transitional season, the outdoor fresh air enters the air pretreatment chamber in the unit shell through the air inlet 25. After being filtered by the air filter 1, the outdoor fresh air flows through the multiple heat pipes 2 in the heat pipe heat exchanger, and the evaporation section of the multiple heat pipes 2 Realize isohumid cooling; the air after isohumid cooling flows into the indirect evaporative cooler through the air supply channel 3, and the indirect evaporative cooler performs isohumid cooling on the air again; the air after two times of isohumid cooling flows to At the direct evaporative cooler, the air is humidified and cooled by the direct evaporative cooler. After the air reaches the air supply state point, the air is sent into the room through the air supply port 29 under the action of the fan 26 .

c. Two-stage indirect preheating, heat pump reheating and direct evaporative humidification combined operation mode, which is suitable for winter:

In this mode, the water pump a7 in the indirect evaporative cooler is turned off, and the indirect evaporative cooler is used as a sensible heat exchange device at this time;

In winter, the outdoor fresh air enters the air pretreatment room in the unit through the air inlet 25, and the outdoor fresh air flows through the multiple heat pipes 2 in the heat pipe heat exchanger after being filtered by the air filter 1, and the condensation section of the multiple heat pipes 2 realizes Isohumidity heating of outdoor air; the air after isohumidity heating flows into the multiple heat exchange tubes in the indirect evaporative cooler through the air supply channel 3, and at this time exchanges with the indoor exhaust air flowing through the multiple heat exchange tubes. heat, realize secondary preheating, then continue to flow to condenser 11 to realize three times of heating, and the air after three times of heating is sent into indoor heating by air supply port 29;

If humidification is required in a relatively dry room in winter, the direct evaporative cooling water distributor will be turned on, and the direct evaporative cooler will run. The air at the wind state point is sent into the room by the air supply port 29 under the effect of the blower fan 26 .

In winter, the indoor exhaust air enters the indirect evaporative cooler through the secondary air inlet 5, and the indoor exhaust air is treated by the indirect evaporative cooler to achieve isohumid cooling; the indoor exhaust air after isohumid cooling flows through the heat pipe heat exchanger There are 2 heat pipes, and the evaporation section of the heat pipes 2 exchanges heat for the indoor exhaust air. After the heat exchange treatment, the temperature of the indoor exhaust air decreases; The indoor exhaust air is humidified and cooled; after the humidified and cooled indoor exhaust air flows through the condenser 20, it is discharged from the exhaust outlet b21.

The utility model is based on the air conditioning unit combined with evaporative cooling, heat pipe and heat pump. The working process of the water system is as follows:

a. Indirect evaporative cooler circulating water system:

The water in the circulating water tank a4 flows into the water distribution pipe a8 along the third water supply pipe 34 under the action of the water pump a7, and the water is sprayed onto a plurality of heat exchange tubes by a plurality of nozzles a35 arranged on the water distribution pipe a8. The outer surface of the heat exchange tube forms a uniform water film, and the water film contacts the secondary air to exchange heat and moisture, and indirectly exchanges heat with the primary air in the heat exchange tube, and finally falls back into the circulating water tank a4 under the action of gravity, and repeats the cycle.

b. Direct evaporative cooler circulating water system:

The circulating water in the circulating water tank b14 is transported by the second water supply pipe 32 to the water distribution pipe b16 under the action of the water pump b13, and the water is sprayed on the surface of the packing 17 by the multiple nozzles b36 provided on the water distribution pipe b16. A uniform water film is formed on the surface, and the water film contacts with the air for heat and moisture exchange, and finally falls back into the circulating water tank b14 under the action of gravity, and the cycle goes on and on.

c. High-pressure micro-mist circulating water system:

The water in the circulating water tank b14 is delivered by the high-pressure water pump 12 to the multiple spray pipes 33 in the shower through the first water supply pipe 31, and the water mist is sprayed by the high-pressure micro-mist nozzles 22 provided on the multiple spray pipes 33. The mist droplets are formed, and the mist droplets are mixed with the air for heat and moisture exchange to achieve humidification and cooling.

The utility model is based on the combination of evaporative cooling, heat pipe and heat pump, and combines evaporative cooling technology with heat pipe technology and heat pump technology. By effectively recycling the heat of indoor exhaust air, the heat exchange efficiency of the heat pipe is significantly improved, and the efficiency of the heat pump unit is improved. The performance of the whole machine has realized the cascade utilization of energy; the combination of sprinkler and direct evaporative cooler is adopted, and there is no need to set up a separate water tank for the sprinkler, which effectively reduces the volume of the unit and makes the structure of the unit more compact.

The utility model is based on the combination of evaporative cooling, heat pipe and heat pump to realize two-stage precooling and preheating of fresh air in different seasons, effectively reducing the energy consumption of the heat pump unit alone and saving operating costs; in addition, the utility model is based on evaporation The air-conditioning unit combined with cooling, heat pipe and heat pump can also flexibly adjust various air treatment processes according to changes in air-conditioning requirements and meteorological conditions, and realize operating modes under various working conditions in different seasons to achieve the purpose of energy saving.

Claims (10)

1. The air-conditioning unit based on the combination of evaporative cooling, heat pipe and heat pump is characterized in that it includes an organic unit casing, and two air ducts, upper and lower, are formed in the unit casing; Air pretreatment chambers and showers are sequentially arranged in the upper air duct according to the flow direction after air enters, and a condenser (20), a throttle valve (19), and a four-way reversing valve ( 18) and a compressor (27); an air inlet (25) is arranged on the top wall of the corresponding unit casing above the air pretreatment chamber, and an air valve (24) is arranged in the air inlet (25); the condenser (20) An air exhaust port b (21) is provided on the top wall of the corresponding unit housing, and a fan is arranged in the air exhaust port (21); An indirect evaporative cooler, an evaporator (11), a direct evaporative cooler, a water baffle b (15) and a blower (26) are arranged in the lower air passage according to the flow direction after the air enters; The indirect evaporative cooler is connected to the air pretreatment chamber; the direct evaporative cooler is connected to the shower; the condenser (20), throttle valve (19), four-way reversing valve (18), compression The machine (27) and the evaporator (11) are connected through a water pipe network to form an air source heat pump system. 2. The air-conditioning unit according to claim 1, characterized in that, an air filter (1) is provided near the air inlet (25) in the air pretreatment chamber; A heat pipe heat exchanger is arranged below the air filter (1); The air pretreatment chamber is provided with an air outlet a (23) near the side of the sprayer, and the bottom of the air pretreatment chamber is provided with a secondary air supply port (28); the secondary air supply port ( 28) Connect with the indirect evaporative cooler through the air supply channel (3). 3. The air conditioning unit according to claim 1 or 2, characterized in that, the indirect evaporative cooler includes a heat exchange tube group (6), and an indirect Evaporative cooling water distributor, water baffle a (9) and secondary exhaust fan (10); A circulating water tank a (4) is arranged below the heat exchange tube group (6), and the circulating water tank a (4) is connected to the indirect evaporative cooling water distributor through a third water supply pipe (34); A secondary air flow path is formed between the heat exchange tube group (6) and the circulating water tank a (4), and a secondary air inlet (5) is provided on the side wall of the unit casing corresponding to the secondary air flow path. 4. The air conditioning unit according to claim 3, characterized in that, the indirect evaporative cooling water distributor consists of a water distribution pipe a (8) and a plurality of water distribution pipes a (8) evenly arranged on the water distribution pipe a (8) and facing the heat exchange tube group ( 6) nozzle a (35) for spraying water, the water distribution pipe a (8) is connected to the third water supply pipe (34); the third water supply pipe (34) is provided with a water pump a (7); The heat exchange tube group (6) is composed of a plurality of horizontally arranged heat exchange tubes. 5. The air conditioning unit according to claim 2, characterized in that the heat pipe heat exchanger is composed of a plurality of heat pipes (2) arranged horizontally. 6. The air conditioning unit according to claim 5, characterized in that, the heat pipe (2) is composed of an evaporation section and a condensation section. 7. The air conditioning unit according to claim 1, characterized in that, the shower includes a plurality of vertically arranged shower pipes (33), and the lower ends of the plurality of shower pipes (33) communicate with the pipe connection; The connecting pipe is connected with the circulating water tank a (14) in the direct evaporative cooler through the first water supply pipe (31); The spray pipe (33) is evenly provided with a plurality of high-pressure micro-mist nozzles (22) spraying towards the air outlet a (23); The first water supply pipe (31) is provided with a high-pressure water pump (12). 8. The air conditioning unit according to claim 1 or 7, characterized in that, the direct evaporative cooler includes packing (17), and a direct evaporative cooling water distributor is arranged above the packing (17); A circulating water tank b (14) is arranged below the filler (17), and the circulating water tank b (14) is connected to a direct evaporative cooling water distributor through a second water supply pipe (32). 9. The air conditioning unit according to claim 8, characterized in that, the direct evaporative cooling water distributor consists of a water distribution pipe b (16) and a plurality of water distribution pipes b (16) which are uniformly arranged on the water distribution pipe b (16) and sprayed facing the filler (17). The spray nozzle b (36) consists of; The water distribution pipe b (16) is connected with the second water supply pipe (32); The second water supply pipe (32) is provided with a water pump b (13). 10. The air conditioning unit according to claim 1, characterized in that, the water outlet port of the condenser (20) is connected to the throttle valve (19) through the first water pipe (G1), and the throttle valve (19) Connect with the water inlet end and the water outlet end of the evaporator (11) respectively through the second water pipe (G2); The water inlet port of the condenser (20) is connected with the four-way reversing valve (18) through the third water pipe (G3); The four-way reversing valve (18) is connected to the second water pipe (G2) through the fourth water pipe (G4), and the four-way reversing valve (18) is respectively passed through the fifth water pipe (G5), the sixth water pipe (G6 ) is connected with the compressor (27).