CN215724312U - Heat exchange system of water chiller - Google Patents
Heat exchange system of water chiller Download PDFInfo
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- CN215724312U CN215724312U CN202121343190.9U CN202121343190U CN215724312U CN 215724312 U CN215724312 U CN 215724312U CN 202121343190 U CN202121343190 U CN 202121343190U CN 215724312 U CN215724312 U CN 215724312U
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Abstract
The utility model relates to the technical field of water coolers, and discloses a heat exchange system of a water cooler, which comprises a first water cooler system, a second water cooler system and a heat exchange system, wherein the heat exchange system comprises a heat exchanger, a temperature sensor and a proportional valve, the heat exchange system is connected with the first water cooler system and the second water cooler system through pipelines, the temperature sensor is arranged on the first pipeline, and the proportional valve is arranged on the third pipeline. The utility model has the beneficial effects that: when the first water chiller is in fault, cold water in the second water chiller system can exchange heat with water in the first water chiller system through the heat exchanger, so that the cold water of the second water chiller system is provided for the first water chiller system to be used. And the temperature of the water after heat exchange of the heat exchanger is obtained through the temperature sensor, and when the temperature is not the target temperature, the proportional valve is adjusted to control the amount of cold water input by the second water chiller, so that the cold water at the target temperature is obtained.
Description
Technical Field
The utility model relates to the technical field of water coolers, in particular to a heat exchange system of a water cooler.
Background
At present, two sets of water chiller systems are generally arranged in a factory, wherein the first water chiller system supplies a production system such as a printing process, the second water chiller system supplies a central air conditioner, and the first water chiller system and the second water chiller system are mutually independent. When the first water chiller system breaks down, the system can only be stopped and repaired, thereby influencing the normal operation of a factory and reducing the production efficiency.
Meanwhile, since the production system and the central air conditioner have different requirements for the temperature of the cold water, the cold water cannot be shared between the first and second water chiller systems. Therefore, there is a need for an improvement to the existing first and second water chiller systems, so that the first and second water chiller systems can exchange cold water, thereby improving the stability of production.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the existing first water chiller system and the second water chiller system are improved, cold water sharing of the first water chiller system and the second water chiller system is realized, cold water can be provided by the second water chiller system when the first water chiller system fails, and production stability is kept.
In order to achieve the above objects, the present invention discloses a heat exchange system of a water chiller, the system comprising a first water chiller system, a second water chiller system and a heat exchange system, the heat exchange system comprises a heat exchanger, a temperature sensor and a proportional valve, wherein a first port and a second port of the heat exchanger are respectively connected with a first cold water system through a first pipeline and a second pipeline, the third port and the fourth port of the heat exchanger are respectively connected with a second cold water system through a third pipeline, a fourth pipeline and a second cold water system, the heat exchanger is internally provided with a first heat exchange pipeline and a second heat exchange pipeline, the inflow end of the first heat exchange pipeline is a second port, the outflow end of the first heat exchange pipeline is a first port, the inflow end of the second heat exchange pipeline is a third port, the outflow end of the second heat exchange pipeline is a fourth port, the first pipeline is provided with a temperature sensor, and the third pipeline is provided with a proportional valve.
Further, first cold water system includes cold water tank, hot-water cylinder and first cold water machine, and the input of cold water tank passes through the output of fifth pipeline and first cold water machine and connects, and the output of hot-water cylinder passes through the input of sixth pipeline and first cold water machine and connects, installs the fifth valve on the fifth pipeline, installs the sixth valve on the sixth pipeline, first pipeline and fifth pipe connection, second pipeline and sixth pipe connection, the tie point of first pipeline and fifth pipeline is located the one side that the fifth valve is close to the cold water tank, and the tie point of second pipeline and sixth pipeline is located the one side that the sixth valve is close to the hot-water cylinder.
Furthermore, the output end of the hot water tank is provided with a first water pump.
Further, the second water chiller system comprises a second water chiller, the output end of a third pipeline is connected with the output end of the second water chiller, the input end of a fourth pipeline is connected with the input end of the water chiller, a three-way valve is further installed on the third pipeline, a first port of the three-way valve is connected with one side, close to the second water chiller, of the third pipeline, a second port of the three-way valve is connected with one side, close to the heat exchanger, of the third pipeline, a third port of the three-way valve is connected with a first port of a seventh pipeline, and a second port of the seventh pipeline is connected with the fourth pipeline.
Furthermore, a second water pump is arranged at the output end of the second water cooler.
Further, install first valve on the first pipeline, install the second valve on the second pipeline, install the third valve on the third pipeline, install the fourth valve on the fourth pipeline, the left side at the proportional valve is installed to the third valve, the left side of proportional valve is the one side that the proportional valve is close to the heat exchanger.
Furthermore, the heat exchange system also comprises a temperature controller, one end of the temperature controller is connected with the temperature sensor, and the other end of the temperature controller is connected with the proportional valve.
Furthermore, a thermometer and a pressure gauge are further arranged on the first pipeline, the second pipeline, the third pipeline and the fourth pipeline.
Further, the temperature of the water in the third pipeline is lower than that of the water in the second pipeline.
Compared with the prior art, the heat exchange system of the water chiller has the advantages that: when the first water chiller is in fault, cold water in the second water chiller system can exchange heat with water in the first water chiller system through the heat exchanger, so that the cold water of the second water chiller system is provided for the first water chiller system to be used. And the temperature of the water after heat exchange of the heat exchanger is obtained through the temperature sensor, and when the temperature is not the target temperature, the proportional valve is adjusted to control the amount of cold water input by the second water chiller, so that the cold water at the target temperature is obtained.
Drawings
FIG. 1 is a schematic view of the flow of water during operation of the heat exchanger with the first chiller of the present invention off;
FIG. 2 is a diagram of the actual plumbing connections of the first water chiller, the second water chiller and the heat exchanger of the present invention;
in the figure, 1, a cold water tank; 2. a hot water tank; 3. a first water pump; 4. a fifth valve; 5. a sixth valve; 6. a first water chiller; 7. a fourth valve; 8. a second water chiller; 9. a second water pump; 10. a three-way valve; 11. a proportional valve; 12. a third valve; 13. a temperature controller; 14. a heat exchanger; 15. a first valve; 16. a temperature sensor; 17. a second valve.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Example 1:
referring to the attached drawing 1, the utility model discloses a heat exchange system of a water chiller, the system comprises a first water chiller system, a second water chiller system and a heat exchange system, the heat exchange system comprises a heat exchanger 14, a temperature sensor 16 and a proportional valve 11, a first port and a second port of the heat exchanger 14 are respectively connected with a first cold water system through a first pipeline and a second pipeline, a third port and a fourth port of the heat exchanger 14 are respectively connected with a second cold water system through a third pipeline and a fourth pipeline, a first heat exchange pipeline and a second heat exchange pipeline are arranged in the heat exchanger 14, an inflow end of the first heat exchange pipeline is a second port, an outflow end of the first heat exchange pipeline is a first port, an inflow end of the second heat exchange pipeline is a third port, an outflow end of the second heat exchange pipeline is a fourth port, the first pipeline is provided with the temperature sensor 16, the third pipe is provided with a proportional valve 11.
When the first water chiller system fails or stops working, cold water of the second water chiller system exchanges heat with water of the first water chiller system through the heat exchanger 14, the temperature of the water in the first water chiller system is reduced, and therefore the first water chiller system can normally provide cold water for the production system. However, since the water in the production system has a temperature requirement, a temperature sensor 16 is added to the first pipeline, the temperature of the water in the first pipeline is acquired according to the temperature sensor 16, and then the proportional valve 11 is adjusted according to the temperature. By adjusting the proportional valve 11, the amount of cold water input into the heat exchanger 14 by the second water chiller system can be adjusted, so that the temperature reduction amplitude of water flowing into the heat exchanger 14 by the first water chiller system is changed. The water of the first water chiller system flows in from the second port of the heat exchanger 14 and flows out from the first port of the heat exchanger 14, and the water of the second water chiller system flows in from the third port and flows out from the fourth port, and those skilled in the art know that the pipes of the first water chiller system and the second water chiller system and the heat exchanger 14 should be connected according to the temperature of the water, so as to achieve a better heat exchange effect.
Example 2:
on the basis of embodiment 1, first cold water system includes cold water tank 1, hot-water cylinder 2 and first cold water machine 6, and the input of cold water tank 1 passes through the output of fifth pipeline and first cold water machine 6 and connects, and the output of hot-water cylinder 2 passes through the input of sixth pipeline and first cold water machine 6 and connects, installs fifth valve 4 on the fifth pipeline, installs sixth valve 5 on the sixth pipeline, first pipeline and fifth pipe connection, second pipeline and sixth pipe connection, the tie point of first pipeline and fifth pipeline is located one side that fifth valve 4 is close to cold water tank 1, and the tie point of second pipeline and sixth pipeline is located one side that sixth valve 5 is close to hot-water cylinder 2.
The first pipe and the fifth pipe may be connected by a flange, and the second pipe and the sixth pipe may be connected by a flange. The fifth valve 4 and the sixth valve 5 may be manual valves or electric motor valves.
When the first water chiller system fails or stops working, the fifth valve 4 of the fifth pipeline and the sixth valve 5 on the sixth pipeline are closed, and the first valve 15 of the first pipeline and the second valve 17 on the second pipeline are opened. The water in the first chiller system is flowed into the heat exchanger 14.
In the embodiment of the utility model, the output end of the hot water tank 2 is provided with a first water pump 3. When the pipeline is too long, the water is provided with forward power, and in order to increase redundancy, a plurality of first water pumps 3 can be arranged in parallel.
In the embodiment of the utility model, the second water chiller system comprises a second water chiller 8, the third pipeline is connected with the output end of the second water chiller 8, the fourth pipeline is connected with the input end of the second water chiller 8, a three-way valve 10 is further installed on the third pipeline, a first port of the three-way valve 10 is connected with one side, close to the second water chiller 8, of the third pipeline, a second port of the three-way valve 10 is connected with one side, close to the heat exchanger 14, of the third pipeline, a third port of the three-way valve 10 is connected with a first port of a seventh pipeline, and a second port of the seventh pipeline is connected with the fourth pipeline.
When the first water chiller system and the second water chiller system do not exchange heat, the second port and the third port of the three-way valve 10 are connected, and when the heat exchange is performed, the first port and the second port of the three-way valve 10 are connected.
In the implementation of the utility model, the output end of the second water chiller 8 is provided with a second water pump 9. When the pipeline is too long, the water is provided with forward power, and in order to increase redundancy, a plurality of first water pumps 3 can be arranged in parallel.
Install first valve 15 on the first pipeline, install second valve 17 on the second pipeline, install third valve 12 on the third pipeline, install fourth valve 7 on the fourth pipeline, third valve 12 is installed in the left side of proportional valve 11, the left side of proportional valve 11 is the one side that proportional valve 11 is close to heat exchanger 14.
Example 3:
on the basis of embodiment 1 or 2, the heat exchange system further comprises a temperature controller 13, one end of the temperature controller 13 is connected with a temperature sensor 16, and the other end of the temperature controller 13 is connected with the proportional valve 11. The valve state of the proportional valve 11 can be adjusted by the temperature controller 13, so that the flow of water flowing into the heat exchanger 14 of the second water chiller system can be adjusted. Further, automatic control can be realized through preset parameters.
And a thermometer and a pressure gauge are further arranged on the first pipeline, the second pipeline, the third pipeline and the fourth pipeline. The temperature and pressure data of each pipeline can be conveniently acquired at any time.
The temperature of the water in the third pipeline is lower than that of the water in the second pipeline. In order to achieve a cooling of the cold water in the first water chiller system, the temperature of the water in the third pipeline should be lower than the temperature of the water in the second pipeline.
The working process of the utility model is as follows: the first water chiller 6 operates normally and does not require heat exchange. The fifth valve 4 and the sixth valve 5 are opened, the first valve 15, the second valve 17, the third valve 12 and the fourth valve 7 are closed, and the fifth pipeline is communicated with the seventh pipeline through the three-way valve 10; the water in the hot water tank 2 flows into the first water chiller 6, and flows into the cold water tank 1 after being refrigerated by the first water chiller 6, and the second water chiller 8 works normally to provide cold water for other equipment.
When the first water chiller 6 is turned off or fails, the fifth valve 4 and the sixth valve 5 are closed, the first valve 15, the second valve 17, the third valve 12 and the fourth valve 7 are opened, the first port and the second port of the three-way valve 10 are connected, and cold water of the second water chiller 8 flows into the third port of the heat exchanger 14 and flows back to the second water chiller 8 from the fourth port of the heat exchanger 14; the water in the hot water tank 2 flows in from the second port of the heat exchanger 14, and flows into the cold water tank 1 from the first port. At this time, the temperature sensor 16 acquires the temperature of the water flowing out from the first port, and if the temperature of the water flowing out from the first port is the target temperature, the proportional valve 11 is kept unchanged; if the temperature of the water flowing out of the first port is not the target temperature, the proportional valve 11 is adjusted, and the flow rate of the cold water flowing into the heat exchanger 14 through the fifth pipeline is changed. The proportional valve 11 is adjusted up or down according to the actual temperature.
To sum up, compared with the prior art, the heat exchange system of the water chiller of the embodiment of the utility model has the following beneficial effects: when the first water chiller 6 fails, cold water in the second water chiller system can exchange heat with water in the first water chiller system through the heat exchanger 14, so that cold water of the second water chiller system is provided for the first water chiller system to be used. And the temperature of the water after heat exchange by the heat exchanger 14 is acquired by the temperature sensor 16, and when the temperature is not the target temperature, the proportional valve 11 is adjusted to control the amount of cold water input by the second water chiller 8, so that cold water at the target temperature is acquired.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A heat exchange system of a water chiller is characterized by comprising a first water chiller system, a second water chiller system and a heat exchange system, the heat exchange system comprises a heat exchanger, a temperature sensor and a proportional valve, wherein a first port and a second port of the heat exchanger are respectively connected with a first cold water system through a first pipeline and a second pipeline, the third port and the fourth port of the heat exchanger are respectively connected with a second cold water system through a third pipeline, a fourth pipeline and a second cold water system, the heat exchanger is internally provided with a first heat exchange pipeline and a second heat exchange pipeline, the inflow end of the first heat exchange pipeline is a second port, the outflow end of the first heat exchange pipeline is a first port, the inflow end of the second heat exchange pipeline is a third port, the outflow end of the second heat exchange pipeline is a fourth port, the first pipeline is provided with a temperature sensor, and the third pipeline is provided with a proportional valve.
2. The heat exchange system of the water chiller according to claim 1, wherein the first water chilling system comprises a water chiller, a hot water tank and a first water chiller, an input end of the water chiller is connected with an output end of the first water chiller through a fifth pipeline, an output end of the hot water tank is connected with an input end of the first water chiller through a sixth pipeline, a fifth valve is installed on the fifth pipeline, a sixth valve is installed on the sixth pipeline, the first pipeline is connected with the fifth pipeline, the second pipeline is connected with the sixth pipeline, a connection point of the first pipeline and the fifth pipeline is located on one side of the fifth valve close to the water chiller, and a connection point of the second pipeline and the sixth pipeline is located on one side of the sixth valve close to the hot water tank.
3. The heat exchange system of a water chiller according to claim 2, wherein the output of the hot water tank is a first water pump.
4. The heat exchange system of a water chiller according to claim 1, wherein the second water chiller system comprises a second water chiller, the third pipeline is connected with an output end of the second water chiller, the fourth pipeline is connected with an input end of the water chiller, a three-way valve is further installed on the third pipeline, a first port of the three-way valve is connected with one side of the third pipeline close to the second water chiller, a second port of the three-way valve is connected with one side of the third pipeline close to the heat exchanger, a third port of the three-way valve is connected with a first port of a seventh pipeline, and a second port of the seventh pipeline is connected with the fourth pipeline.
5. The heat exchange system of the water chiller according to claim 4, wherein the second water chiller output is provided with a second water pump.
6. The heat exchange system of the water chiller according to claim 1, wherein the first pipeline is provided with a first valve, the second pipeline is provided with a second valve, the third pipeline is provided with a third valve, the fourth pipeline is provided with a fourth valve, the third valve is arranged on the left side of the proportional valve, and the left side of the proportional valve is the side of the proportional valve close to the heat exchanger.
7. The heat exchange system of the water chiller according to claim 1, further comprising a temperature controller, wherein one end of the temperature controller is connected to the temperature sensor, and the other end of the temperature controller is connected to the proportional valve.
8. The heat exchange system of the water chiller according to claim 1, wherein a temperature gauge and a pressure gauge are further disposed on the first pipe, the second pipe, the third pipe and the fourth pipe.
9. The heat exchange system of a water chiller according to claim 1 wherein the temperature of the water in the third conduit is lower than the temperature of the water in the second conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121343190.9U CN215724312U (en) | 2021-06-16 | 2021-06-16 | Heat exchange system of water chiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121343190.9U CN215724312U (en) | 2021-06-16 | 2021-06-16 | Heat exchange system of water chiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215724312U true CN215724312U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121343190.9U Active CN215724312U (en) | 2021-06-16 | 2021-06-16 | Heat exchange system of water chiller |
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| CN (1) | CN215724312U (en) |
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2021
- 2021-06-16 CN CN202121343190.9U patent/CN215724312U/en active Active
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