CN223345565U - A composite cooling and air conditioning system - Google Patents
A composite cooling and air conditioning systemInfo
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- CN223345565U CN223345565U CN202422596648.1U CN202422596648U CN223345565U CN 223345565 U CN223345565 U CN 223345565U CN 202422596648 U CN202422596648 U CN 202422596648U CN 223345565 U CN223345565 U CN 223345565U
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Abstract
The utility model relates to the technical field of air conditioners, in particular to a composite cooling air conditioning system which comprises an outdoor heat exchange assembly, an indoor heat exchange assembly and a refrigerant power assembly, wherein the outdoor heat exchange assembly comprises a cooling tower, a water-cooling heat exchanger and an air-cooling heat exchanger, the water-cooling heat exchanger is communicated with the air-cooling heat exchanger, a precooling piece and a water supply assembly are arranged in the cooling tower, cooling liquid of the water supply assembly is contacted with the water-cooling heat exchanger after passing through the precooling piece, an outdoor fan is arranged on the air outlet side of the air-cooling heat exchanger, and the precooling piece is arranged between the air-cooling heat exchanger and the water-cooling heat exchanger. According to the utility model, the refrigerant is firstly condensed and cooled in the air-cooled heat exchanger, then enters the water-cooled heat exchanger for second cooling, and the cooling mode of the water-cooled condenser is air-cooled and water-cooled, so that the temperature of the refrigerant is lower, the supercooling degree of the refrigerant in the system is improved, and the condensation enthalpy difference value of the refrigerant is increased, so that the whole system is more energy-saving in the operation process.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a composite cooling air conditioning system.
Background
In the existing wet film spray condenser scheme, outdoor air firstly passes through wet film to cool and then reaches the condenser to exchange heat, and the inner side condenser directly exchanges heat with natural air. In addition, in the scheme of the existing air-cooling and spraying condenser system, water is directly sprayed on the surface of the condenser, so that the double effects of air cooling and water cooling are realized. However, these schemes have the following problems:
the air-cooled condenser has poor heat dissipation effect, namely, the air-cooled condenser has poor heat dissipation effect under the condition of higher ambient temperature, so that the condensation effect is reduced, and the energy efficiency ratio of the whole system is further influenced.
The wet film spraying scheme has limited effects that although the heat exchange effect of the condenser can be improved to a certain extent, the heat exchange of the condenser is uneven, wind resistance is increased, and the heat exchange efficiency of the whole machine cannot be effectively improved.
Corrosion and water resource waste, namely corrosion to the heat exchanger can be caused by long-term use in an air cooling and spraying system, and water resource waste can be caused in the spraying process.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art and provide a composite cooling air conditioning system.
The utility model aims at realizing the technical scheme that the composite cooling air conditioning system comprises an outdoor heat exchange assembly, an indoor heat exchange assembly and a refrigerant power assembly arranged between the outdoor heat exchange assembly and the indoor heat exchange assembly;
The outdoor heat exchange assembly comprises a cooling tower, a water-cooling heat exchanger and an air-cooling heat exchanger, wherein the water-cooling heat exchanger and the air-cooling heat exchanger are both arranged on the cooling tower, and the cooling tower is internally provided with a precooling piece and a water supply assembly;
An outdoor fan is arranged on the air outlet side of the air-cooled heat exchanger; the outdoor fan is used for generating airflow which sequentially flows through the water-cooling heat exchanger, the precooling piece and the air-cooling heat exchanger.
The water supply assembly comprises a water receiving disc, a spray header, a water pump and a water supply pipe, wherein the water receiving disc is communicated with the spray header through the water pump and the water supply pipe, the water pump and the water supply pipe transmit cooling liquid to the spray header, and the cooling liquid sprayed out of the spray header flows back into the water receiving disc after being contacted with the water cooling heat exchanger through the precooling piece.
The utility model is further characterized in that a water pressure sensor is arranged between the water pump and the spray header, and a conductivity sensor and a water level sensor are arranged in the water receiving disc.
The utility model further provides that the water receiving disc is communicated with a water injection pipe and a water drain pipe, the water injection pipe is provided with a water injection electromagnetic valve, the water drain pipe is provided with a water drain electromagnetic valve, and the top of the water receiving disc is communicated with an overflow pipe.
The cooling tower is further provided with a water-cooling air inlet on the air inlet side of the water-cooling heat exchanger, a communication air duct is formed among the water-cooling heat exchanger, the precooling piece and the air-cooling heat exchanger, the cooling tower is provided with an air-cooling air inlet on the air inlet side of the air-cooling heat exchanger, and an air valve is arranged at the air-cooling air inlet.
The utility model further provides that the cooling tower is provided with an outdoor temperature sensor at the water-cooling air inlet.
The utility model further provides that the indoor heat exchange assembly comprises an indoor heat exchanger and an indoor fan arranged at the indoor heat exchanger;
The refrigerant power assembly comprises a compressor, one end of the compressor is communicated with one end of an air-cooled heat exchanger, the other end of the air-cooled heat exchanger is communicated with one end of an indoor heat exchanger through a water-cooled heat exchanger, and the other end of the indoor heat exchanger is communicated with the other end of the compressor.
The air-cooled heat exchanger is further provided with a first electric ball valve between one end of the water-cooled heat exchanger and the other end of the air-cooled heat exchanger, a second electric ball valve is arranged between the other end of the water-cooled heat exchanger and the other end of the air-cooled heat exchanger, a third electric ball valve is arranged at the other end of the air-cooled heat exchanger, and the third electric ball valve is arranged between the first electric ball valve and the second electric ball valve.
The utility model further provides that the refrigerant power assembly further comprises a liquid reservoir and a refrigerant pump, and one end of the water-cooling heat exchanger is communicated with one end of the indoor heat exchanger after passing through the first electric ball valve, the liquid reservoir and the refrigerant pump in sequence.
The utility model further provides that the refrigerant power assembly further comprises a controller, two ends of the indoor heat exchanger are respectively communicated with the controller, and a bypass electromagnetic valve is arranged between the controller and one end of the indoor heat exchanger.
The utility model has the beneficial effects that the refrigerant is firstly condensed and cooled in the air-cooled heat exchanger and then enters the water-cooled heat exchanger for second cooling, the cooling mode of the water-cooled condenser is air-cooled and water-cooled, so that the temperature of the refrigerant is lower, the supercooling degree of the refrigerant in the system is improved, and the difference value of the condensation enthalpy of the refrigerant is increased, thereby saving more energy in the whole system operation process.
Drawings
The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
FIG. 1 is a schematic diagram of a system of the present utility model;
FIG. 2 is a schematic diagram of the system of the present utility model with the outdoor heat exchange assembly damper closed;
FIG. 3 is a schematic diagram of the system of the present utility model with the outdoor heat exchange assembly damper open;
The cooling tower, 11, a precooling piece, 12, a water receiving disc, 13, a spray header, 14, a water pump, 15, a water supply pipe, 16, an outdoor temperature sensor, 21, a water pressure sensor, 22, a conductivity sensor, 23, a water level sensor, 24, a water injection pipe, 25, a water injection electromagnetic valve, 26, a water drain pipe, 27, a water drainage electromagnetic valve, 28, an overflow pipe, 3, a water cooling heat exchanger, 31, a water cooling air inlet, 32, a communication air channel, 4, an air cooling heat exchanger, 41, an outdoor fan, 42, an air cooling air inlet, 43, an air valve, 51, an indoor heat exchanger, 52, an indoor fan, 6, a compressor, 71, a first electric ball valve, 72, a second electric ball valve, 73, a third electric ball valve, 81, a liquid reservoir, 82, a refrigerant pump, 9, a controller, 91 and a bypass electromagnetic valve.
Detailed Description
The utility model will be further described with reference to the following examples.
As can be seen from fig. 1 and 3, the composite cooling air conditioning system according to the present embodiment includes an outdoor heat exchange assembly, an indoor heat exchange assembly, and a refrigerant power assembly disposed between the outdoor heat exchange assembly and the indoor heat exchange assembly;
The outdoor heat exchange assembly comprises a cooling tower 1, a water-cooling heat exchanger 3 and an air-cooling heat exchanger 4 which are both arranged on the cooling tower 1, wherein the water-cooling heat exchanger 3 is communicated with the air-cooling heat exchanger 4, a precooling piece 11 and a water supply assembly are arranged in the cooling tower 1, and cooling liquid of the water supply assembly is contacted with the water-cooling heat exchanger 3 after passing through the precooling piece 11, wherein the precooling piece 11 is a cooling filler;
An outdoor fan 41 is arranged on the air outlet side of the air-cooled heat exchanger 4, the precooling piece 11 is arranged between the air-cooled heat exchanger 4 and the water-cooled heat exchanger 3, and the outdoor fan 41 is used for generating air flow which sequentially flows through the water-cooled heat exchanger 3, the precooling piece 11 and the air-cooled heat exchanger 4.
The air generated by the outdoor fan 41 enters from the cooling water tower when the refrigerant passes through the outdoor heat exchange assembly, the refrigerant is firstly condensed and cooled in the air-cooled heat exchanger 4 and then enters the water-cooled heat exchanger 3 for second cooling, the cooling mode of the water-cooled heat exchanger 3 is air cooling and water cooling, so that the temperature of the refrigerant is lower, the supercooling degree of the refrigerant in the system is improved, the enthalpy value of the refrigerant entering the indoor heat exchanger 51 is smaller, the enthalpy difference of the unit refrigerant is increased in the whole system operation, the system refrigerant circulation amount can be reduced, the power of the compressor is reduced, the high energy efficiency of the system is realized, and the energy is saved in the whole system operation process.
The water supply assembly comprises a water receiving disc 12, a spray header 13, a water pump 14 and a water supply pipe 15, wherein the water receiving disc 12 is communicated with the spray header 13 through the water pump 14 and the water supply pipe 15, the water pump 14 and the water supply pipe 15 transmit cooling liquid to the spray header 13, and the cooling liquid sprayed out of the spray header 13 is in contact with the water-cooling heat exchanger 3 through the precooling piece 11 and then flows back to the water receiving disc 12.
Specifically, under the action of the water pump 14, the cooling liquid of the water receiving tray 12 is transferred from the water supply pipe 15 to the spray header 13, and then the spray header 13 sprays the cooling liquid downwards, and the cooling liquid flows through the water cooling heat exchanger 3 after being cooled by the precooler 11, so that the heat of the water cooling heat exchanger 3 can be effectively carried away, and the cooling liquid flows back to the water receiving tray 12 under the action of gravity.
According to the composite cooling air conditioning system, the water pressure sensor 21 is arranged between the water pump 14 and the spray header 13, the water pressure of the spray header 13 is conveniently sensed through the arrangement, the conductivity sensor 22 and the water level sensor 23 are arranged in the water receiving disc 12, and the conductivity and the liquid level of the cooling liquid are conveniently sensed through the arrangement.
According to the composite cooling air conditioning system, the water receiving disc 12 is communicated with the water injection pipe 24 and the water discharge pipe 26, the water injection pipe 24 is provided with the water injection electromagnetic valve 25, cooling liquid can be conveniently supplied to the water receiving disc 12 through the arrangement, the water discharge pipe 26 is provided with the water discharge electromagnetic valve 27, cooling liquid of the water receiving disc 12 can be conveniently discharged through the arrangement, the top of the water receiving disc 12 is communicated with the overflow pipe 28, and the overflow of the cooling liquid of the water receiving disc 12 can be prevented through the arrangement.
The composite cooling air conditioning system comprises an indoor heat exchanger 51 and an indoor fan 52 arranged at the indoor heat exchanger 51, wherein the refrigerant power assembly comprises a compressor 6, one end of the compressor 6 is communicated with one end of an air cooling heat exchanger 4, the other end of the air cooling heat exchanger 4 is communicated with one end of the indoor heat exchanger 51 through a water cooling heat exchanger 3, and the other end of the indoor heat exchanger 51 is communicated with the other end of the compressor 6. With the above arrangement, the refrigerant can flow among the compressor 6, the indoor heat exchanger 51, the water-cooled heat exchanger 3, and the air-cooled heat exchanger 4 by the compressor 6.
In the composite cooling air conditioning system of the embodiment, a first electric ball valve 71 is arranged between one end of the water-cooled heat exchanger 3 and the other end of the air-cooled heat exchanger 4, a second electric ball valve 72 is arranged between the other end of the water-cooled heat exchanger 3 and the other end of the air-cooled heat exchanger 4, a third electric ball valve 73 is arranged at the other end of the air-cooled heat exchanger 4, and the third electric ball valve 73 is arranged between the first electric ball valve 71 and the second electric ball valve 72. With the above arrangement, when the outside temperature is sufficiently low, the second electrically operated ball valve 72 can be controlled to be closed, and the first electrically operated ball valve 71 and the third electrically operated ball valve 73 can be opened, so that the resistance of the system piping can be reduced.
In the composite cooling air conditioning system of the embodiment, the refrigerant power assembly further includes a liquid reservoir 81 and a refrigerant pump 82, and one end of the water-cooled heat exchanger 3 is sequentially connected to one end of the indoor heat exchanger 51 after passing through the first electric ball valve 71, the liquid reservoir 81 and the refrigerant pump 82. The present embodiment can perform an alternate operation or a co-operation with the compressor 6 by providing the refrigerant pump 82, and can achieve the purpose of saving energy of the complex cooling air conditioning system by increasing the operation time of the refrigerant pump since the power of the refrigerant pump is smaller than that of the compressor 6.
In the composite cooling air conditioning system of this embodiment, the refrigerant power assembly further includes a controller 9, the controller 9 is provided with a liquid cooling pipeline, two ends of the indoor heat exchanger 51 are respectively communicated with the liquid cooling pipeline of the controller 9, and a bypass electromagnetic valve 91 is disposed between the controller 9 and one end of the indoor heat exchanger 51. The arrangement facilitates heat dissipation and temperature reduction for the controller 9, and is used for cooling the heating electronic devices such as the frequency converter in the controller 9, and the bypass solenoid valve 91 can play a role in load balancing.
In the composite cooling air conditioning system of the embodiment, a water-cooling air inlet 31 is formed in an air inlet side of a water-cooling heat exchanger 3 of the cooling tower 1, a communication air duct 32 is formed among the water-cooling heat exchanger 3, a precooling piece 11 and an air-cooling heat exchanger 4 of the cooling tower 1, an air-cooling air inlet 42 is formed in an air inlet side of the air-cooling heat exchanger 4 of the cooling tower 1, and an air valve 43 is arranged at the air-cooling air inlet 42. In the composite cooling air conditioning system according to the present embodiment, the cooling tower 1 is provided with an outdoor temperature sensor 16 at the water cooling air inlet 31. The temperature outside the induction cooling tower 1 is facilitated by the above arrangement.
Specifically, the control logic of the composite cooling air conditioning system according to this embodiment is:
When the outdoor temperature T detected by the outdoor temperature sensor 16 is more than a ℃, the air valve 43 is in a closed state when the system is in operation, the water pump 14 of the cooling tower 1 is started, air generated by the outdoor fan 41 enters from the water cooling air inlet 31 of the cooling tower and sequentially flows through the water cooling heat exchanger 3, the precooling piece 11 and the air cooling heat exchanger 4 and then is discharged from the air outlet side of the air cooling heat exchanger 4, the refrigerant is firstly condensed and cooled in the air cooling heat exchanger 4 and then enters the water cooling heat exchanger 3 for second cooling, the cooling mode of the water cooling condenser consists of air cooling and water cooling, so that the temperature of the refrigerant is lower, the supercooling degree of the refrigerant in the system is improved, and the condensation enthalpy difference of the refrigerant is increased, so that the whole system is more energy-saving in the operation process.
When the temperature a is higher than the temperature T which is detected by the outdoor temperature sensor 16 and is higher than the temperature b, the air valve 43 is in an open state when the system is in operation, the water pump 14 of the cooling tower 1 is started, because the air resistance of the precooling piece 11 is higher, air generated by the outdoor fan 41 enters from the air cooling air inlet 42 of the cooling water tower, the air flow does not pass through the water cooling heat exchanger 3 and the precooling piece 11, the integral air resistance is smaller, the power consumption of the outdoor fan 41 is smaller, the water cooling heat exchanger 3 utilizes the natural heat exchange of the ambient temperature and the spray water to drop on the surface of the water cooling heat exchanger 3 to evaporate and cool after passing through the precooling piece 11 to take away heat, the refrigerant is firstly condensed and cooled in the air cooling heat exchanger 4, then enters the water cooling condenser to cool for the second time, the temperature of the refrigerant is lower, the supercooling degree of the refrigerant in the system is improved, and the condensation enthalpy difference of the refrigerant is increased. Because of the combination of the water-cooling heat exchanger 3 and the air-cooling heat exchanger 4, only one system compressor 6 is started in the double-system unit, and only the refrigerant pump 82 is started in the other system, the refrigerating requirement of the system can be met, and the system operation power of the combination mode is far lower than that of the system compressor 6 which is started simultaneously. Thereby enabling the whole system to save more energy in the operation process.
When the temperature of b ℃ is higher than the outdoor temperature T detected by the outdoor temperature sensor 16, the outdoor temperature is low, the air valve 43 is opened, the air-cooled heat exchanger 4 is already in need of heat dissipation of the system, the air inlet of the air-cooled heat exchanger 4 is directly introduced into the air valve 43, the resistance of the air on the water-cooled heat exchanger 3 and the precooling member 11 is reduced, the power of the outdoor fan 41 is reduced, the system can meet the refrigeration requirement of the system only by starting the refrigerant pump 82 for circulation, the refrigerant does not need to enter the water-cooled heat exchanger 3 again at the moment for secondary heat exchange in order to reduce the system resistance, the second electric ball valve 72 is controlled to be closed, the first electric ball valve 71 and the third electric ball valve 73 are opened, the system resistance can be reduced, the power required by the whole system is lower due to the use of the low-power refrigerant pump 82, and the energy-saving aim is achieved.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422596648.1U CN223345565U (en) | 2024-10-25 | 2024-10-25 | A composite cooling and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422596648.1U CN223345565U (en) | 2024-10-25 | 2024-10-25 | A composite cooling and air conditioning system |
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| Publication Number | Publication Date |
|---|---|
| CN223345565U true CN223345565U (en) | 2025-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422596648.1U Active CN223345565U (en) | 2024-10-25 | 2024-10-25 | A composite cooling and air conditioning system |
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| CN (1) | CN223345565U (en) |
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- 2024-10-25 CN CN202422596648.1U patent/CN223345565U/en active Active
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