CN214065269U - Refrigerating and heating double-effect heat exchanger with natural cooling function - Google Patents
Refrigerating and heating double-effect heat exchanger with natural cooling function Download PDFInfo
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- CN214065269U CN214065269U CN202023147196.7U CN202023147196U CN214065269U CN 214065269 U CN214065269 U CN 214065269U CN 202023147196 U CN202023147196 U CN 202023147196U CN 214065269 U CN214065269 U CN 214065269U
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Abstract
The utility model discloses a refrigeration and heating double-effect heat exchanger with natural cooling, which comprises a casing, a fan and a cooling water circulating pump, wherein a spraying device, a refrigerant heat exchange fin heat exchanger, a water tank and a compressor are arranged in the casing; a natural cooling fin heat exchanger and an air valve are arranged in the shell, the interior of the shell is divided into an upper heat exchange area and a lower heat exchange area, and a water inlet pipe and a water outlet pipe are arranged on the natural cooling fin heat exchanger. The utility model discloses the natural cooling efficiency can satisfy the needs in temperature lower but need refrigerated season to refrigeration response speed is fast, and the energy consumption is lower, compromises refrigeration high efficiency and heating function simultaneously.
Description
Technical Field
The utility model relates to a double-effect evaporator technical field, concretely relates to take natural cooling's refrigeration and heating double-effect heat exchanger and control method thereof.
Background
The air conditioner evaporator is one kind of evaporator, and has the function of utilizing liquid low temperature refrigerant to evaporate easily under low pressure, convert into vapor and absorb the heat of the cooled medium to reach the aim of refrigeration. It depends on the fan to make the indoor air flow through the cooling calandria in the box to carry out heat exchange, makes the air cooling to reach the purpose of lowering room temperature. Among them, a dry type air cooler is called in which a refrigerant (a refrigerant or a secondary refrigerant) flows in a row of tubes and cools the air outside the tubes through the tube walls; the sprayed secondary refrigerant liquid directly exchanges heat with air, and the air is called as a wet-type air cooler; besides the cooling exhaust pipe, the mixed type air cooler also has a secondary refrigerant spraying device. In the season of low air temperature and refrigeration requirement, the traditional refrigerant refrigeration mode has high energy consumption, can waste excessive electric energy and has slow refrigeration response.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a take natural cooling's refrigeration heating double-effect heat exchanger and control method to solve in temperature lower but need refrigerated season, traditional refrigerant refrigeration mode energy consumption is great, can waste too much electric energy, and the slow problem of refrigeration response.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
on one hand, the refrigerating and heating double-effect heat exchanger with natural cooling comprises a shell, a fan and a cooling water circulating pump, wherein a spraying device, a refrigerant heat exchange fin heat exchanger, a water tank and a compressor are arranged in the shell;
the cooling system is characterized in that a natural cooling fin heat exchanger and an air valve are arranged in the machine shell, the interior of the machine shell is divided into an upper heat exchange area and a lower heat exchange area by the natural cooling fin heat exchanger and the air valve, the air valve is located on one side of the natural cooling fin heat exchanger, an air outlet is communicated with the upper heat exchange area, an air inlet is communicated with the lower heat exchange area, the refrigerant heat exchange fin heat exchanger is located in the lower heat exchange area, a water inlet pipe and a water outlet pipe used for circulation of chilled water on the user side are arranged on the natural cooling fin heat exchanger, and the natural cooling fin heat.
Preferably, a temperature sensor is arranged in the lower heat exchange area, the temperature sensor is located below the refrigerant heat exchange fin heat exchanger, and the air inlet is located on one side of the temperature sensor.
Preferably, the air outlet is positioned on the upper surface of the shell, and a water baffle corresponding to the fan is arranged on the inner side of the air outlet.
On the other hand, the control method of the refrigerating and heating double-effect heat exchanger with natural cooling comprises the following effects,
s1, in the compressor refrigeration cycle, as an evaporative condenser
The air valve is closed upwards, the motor drives the fan to rotate, and air flows through the refrigerant heat exchange fin heat exchanger and the natural cooling fin heat exchanger in sequence to take away heat and water vapor; the refrigerant enters from the refrigerant air pipe in the refrigerant heat exchange fin heat exchanger, is condensed into liquid and flows out from the refrigerant liquid pipe, and then the refrigeration effect is realized; cooling water flows through the spraying device after passing through a cooling water circulating water pump in the water tank and is uniformly sprayed to the natural cooling fin heat exchanger, after the natural cooling fin heat exchanger and flowing air are subjected to evaporative cooling and temperature reduction, the cooling water flows to the refrigerant heat exchange fin heat exchanger to exchange heat with refrigerant in the heat exchanger tube, and after absorbing heat of the refrigerant, the cooling water flows to the water tank to realize water circulation;
s2, in the heating circulation of the compressor, the evaporator absorbs the heat in the air
The air valve is opened downwards, the motor drives the fan to rotate, air flows through the refrigerant heat exchange fin heat exchanger, low-temperature and low-pressure refrigerant flows into the refrigerant heat exchange fin heat exchanger from a refrigerant liquid pipe, and the refrigerant liquid pipe flows out of a refrigerant gas pipe after exchanging heat with flowing air, and then the refrigerant gas pipe is sucked by the compressor and is recycled;
s3, in natural cooling, when the temperature is lower, the fan is used for directly transferring the heat of the chilled water at the user side
The air valve is closed upwards, the high-temperature user side chilled water flows in through the water inlet pipe of the natural cooling fin heat exchanger, exchanges heat with air and cools the air flowing through the natural cooling fin heat exchanger in the heat exchanger, and then flows out of the water outlet pipe of the natural cooling fin heat exchanger.
The utility model has the advantages that:
1. the utility model discloses in the compressor cycle refrigeration, as evaporative condenser, spray set spun cooling water at first carries out the evaporation cooling through natural cooling fin heat exchanger, flows to refrigerant heat transfer fin heat exchanger again, for directly spraying refrigerant heat transfer fin heat exchanger's current evaporative condenser, the cooling water temperature at this moment is lower, can absorb more heats in the refrigerant to shorten refrigeration response time.
2. The utility model discloses among the natural cooling, when the temperature is lower, utilize the fan directly to take away the heat transmission of user side refrigerated water, refrigerant heat transfer fin heat exchanger and compressor do not work, and the user side refrigerated water of high temperature carries out the heat transfer cooling in natural cooling fin heat exchanger, can satisfy temperature lower but the needs in the refrigerated season of needs to refrigerate to refrigeration response speed is fast, and is lower for through refrigerant heat transfer fin heat exchanger and compressor refrigeration energy consumption.
Drawings
Fig. 1 is a schematic structural diagram of a refrigerating and heating double-effect heat exchanger with natural cooling.
Wherein: 1. a refrigerant heat exchange fin heat exchanger; 2. naturally cooling the finned heat exchanger; 3. a spraying device; 4. a cooling water circulating water pump; 5. an air valve; 6. a fan; 7. a motor; 8. a compressor; 9. a water tank; 10. a refrigerant liquid pipe; 11. a refrigerant gas pipe; 12. a lower heat exchange zone; 13. a housing; 14. a water inlet pipe; 15. a water outlet pipe; 16. an air outlet; 17. an upper heat exchange zone; 18. a water baffle; 19. a temperature sensor.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention.
Referring to fig. 1, the embodiment provides a cooling and heating double-effect heat exchanger with natural cooling, which includes a casing 13, a fan 6 and a cooling water circulating water pump, a spraying device 3, a refrigerant heat exchange fin heat exchanger 1, a water tank 9 and a compressor 8 are arranged in the casing 13, a refrigerant liquid pipe 10 and a refrigerant gas pipe 11 are arranged on the refrigerant heat exchange fin heat exchanger 1, an air outlet 16 and an air inlet are arranged on the casing 13, and the fan 6 driven by a motor 7 is arranged at the air outlet 16;
the air conditioner is characterized in that a natural cooling fin heat exchanger 2 and an air valve 5 are arranged in the casing 13, the inside of the casing 13 is divided into an upper heat exchange area 17 and a lower heat exchange area 12 by the natural cooling fin heat exchanger 2 and the air valve 5, the air valve 5 is located on one side of the natural cooling fin heat exchanger 2, an air outlet 16 is communicated with the upper heat exchange area 17, an air inlet is communicated with the lower heat exchange area 12, the refrigerant heat exchange fin heat exchanger 1 is located in the lower heat exchange area 12, a water inlet pipe 14 and a water outlet pipe 15 which are used for circulation of chilled water on the user side are arranged on the natural cooling fin heat exchanger 2, and the natural cooling fin heat exchanger 2 is located between the spraying device 3 and the refrigerant heat exchange fin heat exchanger 1.
In a preferred embodiment of the present invention, a temperature sensor 19 is disposed in the lower heat exchange area 12, the temperature sensor 19 is located below the refrigerant heat exchange fin heat exchanger 1, and the air inlet is located on one side of the temperature sensor 19.
The utility model discloses set up temperature sensor 19 in air intake department, the accurate monitoring ambient temperature of being convenient for like this can provide accurate monitoring data for the operation of this economic benefits and social benefits heat exchanger.
In a preferred embodiment of the present invention, the air outlet 16 is located on the top of the casing 13, and a water baffle 18 corresponding to the fan 6 is disposed inside the air outlet 16.
The utility model discloses establish in 16 inboards of air exit and set up breakwater 18, breakwater 18 can effectively reduce scattering and disappearing of the inside cooling water that is used for the circulation of this double-effect heat exchanger.
The embodiment provides a control method of a refrigerating and heating double-effect heat exchanger with natural cooling, which comprises the following effects,
s1, in the refrigeration cycle of the compressor 8, as an evaporative condenser
The air valve 5 is closed upwards, the motor 7 drives the fan 6 to rotate, and air flows through the refrigerant heat exchange fin heat exchanger 1 and the natural cooling fin heat exchanger 2 in sequence to take away heat and water vapor; the refrigerant enters from a refrigerant air pipe 11 in the refrigerant heat exchange fin heat exchanger 1, is condensed and then changed into liquid, and flows out from a refrigerant liquid pipe 10, and then the refrigeration effect is realized; the cooling water flows through the spraying device 3 after passing through the cooling water circulating water pump in the water tank 9, is uniformly sprayed to the natural cooling fin heat exchanger 2, is evaporated, cooled and cooled by the natural cooling fin heat exchanger 2 and flowing air, flows to the refrigerant heat exchange fin heat exchanger 1 to exchange heat with the refrigerant in the heat exchanger tubes, absorbs the heat of the refrigerant, and then flows to the water tank 9 to realize water circulation. In the process, the heat exchange of the natural cooling fin heat exchanger 2 realizes the function of surface evaporation of cooling water of the PVC filler of the existing evaporative condenser, and in the effect, the cooling water sprayed out of the spraying device 3 firstly passes through the natural cooling fin heat exchanger 2 to be evaporated, cooled and then flows to the refrigerant heat exchange fin heat exchanger 1, compared with the existing evaporative condenser which is directly sprayed to the refrigerant heat exchange fin heat exchanger 1, the cooling water at the moment is lower in temperature, and more heat in the refrigerant can be absorbed, so that the refrigeration response time is shortened.
S2, in the heating cycle of the compressor 8, the evaporator absorbs the heat in the air
The air valve 5 is opened downwards, the motor 7 of the air valve drives the fan 6 to rotate, air flows through the refrigerant heat exchange fin heat exchanger 1, low-temperature and low-pressure refrigerant flows into the refrigerant heat exchange fin heat exchanger 1 from a refrigerant liquid pipe 10, and the low-temperature and low-pressure refrigerant becomes gas after exchanging heat with flowing air and flows out of a refrigerant air pipe 11, is sucked by the compressor 8 and is recycled, and in the process, chilled water on the user side does not circulate, and the natural cooling fin heat exchanger 2 does not work.
S3, in natural cooling, when the temperature is lower, the fan is used for directly transferring the heat of the chilled water at the user side
The air valve 5 is closed upwards, the high-temperature user side chilled water flows in through the water inlet pipe 14 of the natural cooling fin heat exchanger 2, exchanges heat with the water and air flowing through the natural cooling fin heat exchanger 2 in the heat exchanger for cooling, and then flows out from the water outlet pipe 15 of the natural cooling fin heat exchanger 2. In the process, the heat exchange of the natural cooling fin heat exchanger 2 realizes the function of evaporating the chilled water on the user side of the PVC filler of the existing evaporative condenser, the refrigerant heat exchange fin heat exchanger 1 and the compressor 8 do not work, and similarly, when the ambient temperature is low enough, the cooling water circulating pump can be closed, and only air flows through the natural cooling fin heat exchanger 2 to exchange heat with the chilled water on the user side. The effect is natural cooling, the high-temperature user side chilled water carries out heat exchange and cooling in the natural cooling fin heat exchanger 2, the requirement of seasons with lower air temperature and refrigeration requirement can be met, the refrigeration response speed is high, and the refrigeration energy consumption is lower compared with that of the refrigerant heat exchange fin heat exchanger 1 and the compressor 8.
Description of the above embodiments:
the utility model discloses a determinant factor in the three efficiency of control method is the required cold volume of user still heat.
When the user needs cooling capacity, the determining factor of the operation efficacy S1 and S2 is the difference between the temperature of the chilled water at the required user side and the ambient temperature. When the ambient temperature is lower than the set temperature A value, the operation is regarded as the efficacy S2. When the ambient temperature is not lower than the set temperature value, the operation is performed as an efficacy S1.
When operating as the function S2, the determining factor of whether the chilled water circulating pump is operating is the difference between the desired user-side chilled water temperature and the ambient temperature. When the environmental temperature is lower than the set temperature B value, the operation is performed as an effect S2, the cooling water circulating water pump stops operating, otherwise, the cooling water circulating water pump operates, and the natural cooling fin heat exchanger 2 performs evaporative cooling heat exchange.
It should be noted that the refrigerant heat exchange fin heat exchanger 1 and the natural cooling fin heat exchanger 2 can exchange positions, and can also realize similar effects of the utility model.
The above embodiments are provided for illustrative purposes, and are not intended to limit the present invention, and any modifications and changes made within the spirit and scope of the claims fall within the scope of the present invention.
Claims (3)
1. A refrigerating and heating double-effect heat exchanger with natural cooling comprises a shell (13), a fan (6) and a cooling water circulating water pump, wherein a spraying device (3), a refrigerant heat exchange fin heat exchanger (1), a water tank (9) and a compressor (8) are arranged in the shell (13), a refrigerant liquid pipe (10) and a refrigerant gas pipe (11) are arranged on the refrigerant heat exchange fin heat exchanger (1), an air outlet (16) and an air inlet are arranged on the shell (13), the fan (6) driven by a motor (7) is arranged at the air outlet (16), and the heat exchanger is characterized in that,
the air conditioner is characterized in that a natural cooling fin heat exchanger (2) and an air valve (5) are arranged in a machine shell (13), the interior of the machine shell (13) is divided into an upper heat exchange area (17) and a lower heat exchange area (12) by the natural cooling fin heat exchanger (2) and the air valve (5), the air valve (5) is located on one side of the natural cooling fin heat exchanger (2), an air outlet (16) is communicated with the upper heat exchange area (17), an air inlet is communicated with the lower heat exchange area (12), a refrigerant heat exchange fin heat exchanger (1) is located in the lower heat exchange area (12), a water inlet pipe (14) and a water outlet pipe (15) for circulation of chilled water on the user side are arranged on the natural cooling fin heat exchanger (2), and the natural cooling fin heat exchanger (2) is located between a spraying device (3) and the.
2. The double-effect heat exchanger with natural cooling and cooling functions as recited in claim 1, characterized in that a temperature sensor (19) is arranged in the lower heat exchange area (12), the temperature sensor (19) is located below the refrigerant heat exchange fin heat exchanger (1), and the air inlet is located at one side of the temperature sensor (19).
3. Double-effect heat exchanger with natural cooling and cooling functions, according to claim 1, characterized in that the air outlet (16) is located on the top of the casing (13), and the inner side of the air outlet (16) is provided with a water baffle (18) corresponding to the fan (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023147196.7U CN214065269U (en) | 2020-12-24 | 2020-12-24 | Refrigerating and heating double-effect heat exchanger with natural cooling function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023147196.7U CN214065269U (en) | 2020-12-24 | 2020-12-24 | Refrigerating and heating double-effect heat exchanger with natural cooling function |
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| CN214065269U true CN214065269U (en) | 2021-08-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183860A (en) * | 2021-12-15 | 2022-03-15 | 珠海格力电器股份有限公司 | Composite air conditioning system, control method and air conditioner |
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2020
- 2020-12-24 CN CN202023147196.7U patent/CN214065269U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183860A (en) * | 2021-12-15 | 2022-03-15 | 珠海格力电器股份有限公司 | Composite air conditioning system, control method and air conditioner |
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