TWM620847U - Cold water circulation system - Google Patents

Abstract

This creation provides a cold water circulation system, which connects a cooling device group including a first cooling device with a first pipeline and a second pipeline to a heat exchange device, a heating device with a third pipeline, and A fourth pipeline is connected to the heat exchange device, and the fourth pipeline is used to set a shunt chamber to connect with a fifth pipeline. The cooling device group includes a second cooling device, and the second cooling device is connected to A sixth pipeline is connected to the fourth pipeline to provide a mixing chamber, and the first pipeline is used to provide a first control valve and the fifth pipeline to provide a second control valve to adjust the cooling device accordingly The cold fluid of the group circulates, so that cold fluids of different temperatures can be circulated and mixed in the system.

Description

Cold water circulation system

This creation is about a cold water circulation system, especially a circulation system used for cooling and heating circulation, and supplying multi-temperature cooling fluid to improve the power efficiency of the system.

With the development of the times, the industry has gradually set up facilities in factories to supply the corresponding environment of its manufacturing equipment, which is called the factory system; taking the semiconductor industry as an example, its factory system usually includes: clean room related systems, air conditioning systems, Pure water system, gas supply system, chemical supply system, power system; the most important thing for the first clean room related system is to provide a clean production environment, and the second air conditioning system aims to provide a stable air conditioning environment for the entire plant , The purpose of the third pure water system is to supply cleaning-related process needs, the purpose of the fourth gas supply system is to provide high-quality bulk gases and safe special gases, and the purpose of the fifth chemical supply system is to provide bulk For the high-quality chemicals used, the purpose of the sixth power system is to supply a stable power supply for the entire site; among them, the factory system needs two functions, which are to provide a heat source and a cold source.

For the heat source supply, the industry often uses boilers to supply hot water by heating. The load of hot water demand in factories is usually: clean outdoor air-conditioning (MAU) and pure water systems.

At the same time, there are many heat sources in the factory that need to be cooled, so it is necessary to provide a cold source. The industry usually uses process cooling water to supply the production equipment PCW (PROCESS COOLING WATER), which is a system for manufacturing cooling water, and The temperature of the fluid required to be provided should not be too low. The temperature is usually controlled at 16°C to 22°C. If the temperature of the fluid is too low, condensation on the pipe surface will occur when the humidity in the factory or clean room is high. The equipment is damaged. If the temperature of the fluid is too high, the cooling requirement of the equipment will not be met; and the fluid usually uses pure water or soft water as the water source.

The conventional cold water circulation system of the factory mainly uses the refrigeration system of the vapor compression cycle principle as the refrigeration source to cool the high-temperature fluid in the cold water cycle into the low-temperature fluid in the evaporator in the refrigeration system, but the conventional cold water In the operation of the circulation system, the fluid temperature of the cold water circulation will be reduced as much as possible to meet all the cooling needs in the factory; but according to thermodynamic analysis, the refrigeration system is under the condition of constant condensation temperature. The higher the evaporation temperature, the higher the efficiency of the refrigeration system. This means that increasing the fluid temperature of the cold water circulation will help the efficiency of the refrigeration system. Therefore, the conventional cold water circulation system of the factory is inefficient to reduce the fluid temperature as much as possible, which will increase the operating cost of the factory.

In view of the above-mentioned problems of the prior art, the present invention provides a cold water circulation system, which connects part of the cooling device of the cooling device group to the heat exchange device, and another part of the cooling device of the cooling device group is connected to the heat generating device, and the heat exchange device is connected to the heat generating device. The devices are connected to each other, and the fluids of the cooling device group, the heating device and the heat exchange device are mixed and circulated to adjust the required temperature of the cold fluid and circulate in the system.

One purpose of this creation is to provide a cold water circulation system in which part of the cooling device of the cooling device group is connected to the heat exchange device, another part of the cooling device of the cooling device group is connected to the heating device, and the heat exchange device and the heating device are connected to each other, by The fluids of the cooling device group, the heating device and the heat exchange device are mixed and circulated to adjust the cold fluid of various temperatures required and circulate in the system, in addition to stabilizing the temperature of the cooling fluid, and improving the electricity efficiency of the cold water circulation system.

In order to achieve the above-mentioned purposes and effects, this creation provides a cold water circulation system, which includes: a cooling device group, a heat exchange device, and a heating device. The cooling device group includes a first cooling device and a second cooling device. A cooling device, the first cooling device is arranged on one side of the second cooling device, the heat exchange device is connected to the first cooling device by a first pipeline and a second pipeline, and the first pipeline is provided with a first cooling device. A control valve, the heating device is connected to the heat exchange device by a third pipeline and a fourth pipeline, the fourth pipeline is provided with a mixing chamber and a shunt chamber, and the mixing chamber is connected by a sixth pipe Is connected to the second cooling device, the branching chamber is arranged between the mixing chamber and the heating device, the branching chamber is connected to the second cooling device by a fifth pipeline, and the fifth pipeline is provided with a first cooling device. Two control valves; wherein, the flow of fluid entering the heat exchange device through the first pipeline and the first control valve is controlled, and the flow from the fifth pipeline and the second control valve to the second cooling device is controlled The fluid flow makes the heating device reach a preset temperature; this structure provides a cold water circulation system, so that cold fluids of different temperatures can be circulated and mixed in the system.

In an embodiment of the present invention, a first temperature sensing element is provided inside one of the third pipelines.

In an embodiment of the present invention, a second temperature sensing element is provided inside one of the fourth pipelines.

In an embodiment of the present invention, a control element is further included. The control element is electrically connected to the first control valve, the second control valve, the first temperature sensing element, and the second temperature sensing element. The element receives a first temperature signal of the first temperature sensing element to control the opening and closing of the first control valve, and the control element receives a second temperature signal of the second temperature sensing element to control the second control Valve switch.

In an embodiment of this creation, a first circulating pump is provided inside one of the first pipelines.

In an embodiment of the present invention, a second circulating pump is provided between the mixing chamber and the heat exchange device on an inner side of the fourth pipeline.

In an embodiment of this creation, a third circulating pump is provided inside one of the fifth pipelines.

In an embodiment of the present creation, it further includes a seventh pipeline, one end of the seventh pipeline communicates with the first pipeline, the other end of the seventh pipeline communicates with the sixth pipeline, and the seventh pipeline Set up a third control valve.

In an embodiment of the present creation, it further includes an eighth pipe, one end of the eighth pipe is connected to the second pipe, the other end of the eighth pipe is connected to the fifth pipe, and the eighth pipe Set up a fourth control valve.

In an embodiment of this creation, it further includes a ninth pipe and a tenth pipe, one end of the ninth pipe is connected to the first pipe, and the other end of the ninth pipe is connected to the second pipe One end of the tenth pipeline is connected to the fifth pipeline, and the other end of the tenth pipeline is connected to the sixth pipeline.

In order to enable your review committee to have a better understanding and understanding of the characteristics of this creation and the effects achieved, I would like to provide examples and supporting instructions. The explanation is as follows:

In view of the above-mentioned problems of the prior art, the present invention provides a part of the cooling device group connected to the heat exchange device, another part of the cooling device group is connected to the heat-generating device, and the heat exchange device and the heat-generating device are connected to each other, by part The fluids of the cooling device group, the heating device and the heat exchange device are mixed and circulated to adjust the cold fluid of various temperatures required to solve the problem of the conventional technology that requires a large amount of energy to adjust the temperature of the cooling fluid.

Please refer to Figure 1, which is a schematic diagram of the circulation system of the creative embodiment. As shown in the figure, in this embodiment, a cold water circulation system 1 includes a cooling device group 10, a heat exchange device 20, and a heat generating device. The device 30 uses fluid to flow in the devices 10, 20, 30 for heat exchange and circulation; in this embodiment, the fluid can be water, but it is not used to limit the creation.

Referring to Figure 1 again, as shown in the figure, in this embodiment, the cooling device set 10 includes a first cooling device 12 and a second cooling device 14. The first cooling device 12 is disposed on the second cooling device. On one side of the cooling device 14, the number of cooling devices of the cooling device group 10 can be plural and divided into two groups. This embodiment uses the first cooling device 12 and the second cooling device 14 as examples, and is not intended to limit the present Creation; the heat exchange device 20 communicates with the first cooling device 12 with a first pipe 22 to receive cold fluid, and the heat exchange device 20 communicates with the first cooling device 12 with a second pipe 24 to transport hot fluid, The first pipeline 22 is provided with a first control valve 222, and the switch of the first control valve 222 controls the flow of fluid flowing through the heat exchange device 20; the first control valve 222 can also be provided in the second pipeline 24 , The resulting functions are exactly the same; the heating device 30 is connected to the heat exchange device 20 with a third pipe 32 to receive cold fluid, and the heating device 30 is connected to the heat exchange device 20 with a fourth pipe 34 to transport For hot fluid, the fourth pipeline 34 is provided with a mixing chamber 342 and a branching chamber 348. The mixing chamber 342 is connected to the second cooling device 14 by a sixth pipeline 38 to receive cold fluid. The branching chamber The chamber 348 is arranged between the mixing chamber 342 and the heating device 30, and the branching chamber 348 is connected to the second cooling device 14 by a fifth pipe 36, and the branching chamber 348 is connected to the fourth pipe 34. The fluid is divided to the fifth pipeline 36 and its flow is controlled. The fifth pipeline 36 is provided with a second control valve 362. The opening and closing of the second control valve 362 controls the flow of the fluid flowing through the second cooling device 14 The second control valve 362 can also be provided in the sixth pipeline 38, resulting in exactly the same function; in this embodiment, the first and second cooling devices 12, 14 are equipment that cools the fluid, such as a refrigerator And heat sinks, these cooling devices; the heat exchange device 20 is used to exchange the heat energy of the fluid, such as copper pipe for heat conduction; the heating device 30 is a heat source for heating, such as factory processing machines, air compressors, and conveying equipment.

Following the above, as shown in the figure, in this embodiment, the first cooling device 12 cools the fluid to form a first cold fluid C1, and the first cold fluid C1 flows in the first pipeline 22 to the The heat exchange device 20, the first cold fluid C1 is heated in the heat exchange device 20 to form a first hot fluid H1, the first hot fluid H1 flows to the first cooling device 12 in the second pipe 24, and then For cooling, the heat exchange device 20 cools the fluid to form a second cold fluid C2, the second cold fluid C2 flows to the heating device 30 in the third pipe 32, and the second cold fluid C2 absorbs the The heat energy of the heating device 30 causes the heating device 30 to reach a preset temperature to form a second thermal fluid H2. The second thermal fluid H2 flows in the fourth pipe 34 to the branching chamber 348, and the branching chamber The chamber 348 divides the second hot fluid H2 into a third hot fluid H3 and a fourth hot fluid H4, and the fourth hot fluid H4 flows in the fourth pipe 34 to the mixing chamber 342 to mix the fluids. A third cold fluid C3 enters the fourth pipe 34 from the mixing chamber 342, and flows to the heat exchange device 20 to further exchange heat with the first cold fluid C1, and the first cold fluid C1 The three-hot fluid H3 flows in the fifth pipe 36 to the second cooling device 14 for cooling, forming a fourth cold fluid C4, and the fourth cold fluid C4 flows to the mixing chamber in the sixth pipe 38 The chamber 342 mixes with the fourth hot fluid H4 to form the third cold fluid C3, completing one cycle; in this embodiment, the temperature of the first cold fluid C1 is lower than the temperature of the fourth cold fluid C4, so The power consumption efficiency of the second cooling device 14 is better than that of the first cooling device 12.

Please refer to Figure 2, which is a schematic diagram of the circulation system and the temperature sensing element of the creative embodiment. As shown in the figure, in this embodiment, a first temperature is set inside one of the third pipes 32 The sensing element 322, and a second temperature sensing element 344 is arranged inside one of the fourth pipelines 34, the first temperature sensing element 322 senses the temperature of the second cold fluid C2, and the second temperature sensing The element 344 senses the temperature of the third cold fluid C3. The preset temperature of the second cold fluid C2 and the third cold fluid C3 are the same; when the temperature of the third cold fluid C3 is lower than the preset temperature, the third cold fluid C3 is lower than the preset temperature. The opening of the second control valve 362 is reduced to reduce the flow rate of the fourth cold fluid C4 entering the mixing cavity 342, thereby increasing the temperature of the third cold fluid C3 to reach a preset temperature, and the third cold fluid C3 continues to circulate The second cold fluid C2 is formed. At this time, the temperature of the second cold fluid C2 is equal to the temperature of the third cold fluid C3, which are all preset temperatures. Therefore, the first control valve 222 is closed to make the first cooling device 12 The fluid between the heat exchange device 20 and the heat exchange device 20 stops flowing. At this time, the first cooling device 12 can stop operating, and the third cold fluid C3 continues to circulate to form the second cold fluid C2 and flow to the heating device 30; and when When the temperature of the third cold fluid C3 is higher than the preset temperature, the opening of the second control valve 362 expands, which increases the flow rate of the fourth cold fluid C4 entering the mixing cavity 342, thereby reducing the third cold fluid C3 The temperature reaches the preset temperature, and the third cold fluid C3 continues to circulate to form the second cold fluid C2. At this time, the temperature of the second cold fluid C2 is equal to the temperature of the third cold fluid C3, which is the preset temperature Therefore, the first control valve 222 is closed to stop the flow of fluid between the first cooling device 12 and the heat exchange device 20. At this time, the first cooling device 12 can be stopped, and the third cold fluid C3 continues to circulate, The second cold fluid C2 is formed and flows to the heating device 30; and when the temperature of the third cold fluid C3 is higher than the preset temperature, and the opening of the second control valve 362 is widened and fully opened, the third cold fluid C2 cannot be lowered. The temperature of the third cold fluid C3 reaches the preset temperature, the third cold fluid C3 continues to circulate to form the second cold fluid C2. At this time, the temperature of the second cold fluid C2 is higher than the preset temperature, so the first control valve 222 Turn on, so that the fluid between the first cooling device 12 and the heat exchange device 20 starts to flow. At this time, the first cooling device 12 starts to supply the first cold fluid C1 to the heat exchange device 20 and to the third cold fluid C3 heat exchange, forming the second cold fluid C2 and flowing to the heating device 30; the above description shows that only when the cooling capacity of the second cooling device 14 cannot meet the cooling requirements of the third fluid C3, the first cooling device 12 It only needs to be started, so the usage of the first cold fluid C1 can be reduced, so as to save the energy consumption of the first cooling device 12 and improve the electricity efficiency of the overall cold water circulation system.

Please refer to Figures 3 and 4. Figure 3 is a schematic diagram of the circulation pump of the creative embodiment, and Figure 4 is a schematic diagram of the electrical connection of the control element of the creative embodiment. As shown in Figure 3, this implementation The example further discloses that a first circulation pump 224 is arranged inside one of the first pipelines 22, a second circulation pump 346 is arranged inside one of the fourth pipelines 34, and further the second circulation pump 346 is arranged in the mixing chamber 342 and the heat exchange device 20, a third circulating pump 364 is provided inside one of the fifth pipelines 36, and the first circulating pump 224 is used to circulate the first cold fluid C1 and the first hot fluid H1, The second circulating pump 346 and the third circulating pump 364 are used to circulate the second cold fluid C2, the third cold fluid C3, the fourth cold fluid C4, the second hot fluid H2, the third hot fluid H3 And the fourth thermal fluid H4; as shown in Figure 4, this embodiment further includes a control element 40, the control element 40 is electrically connected to the first control valve 222, the second control valve 362, the first temperature The sensing element 322 and the second temperature sensing element 344, the control element 40 receives a first temperature signal 323 of the first temperature sensing element 322, and the control element 40 transmits a first control signal 42 to the first The control valve 222 controls the opening and closing of the first control valve 222. The control element 40 receives a second temperature signal 345 of the second temperature sensing element 344, and the control element 40 transmits a second control signal 44 To the second control valve 362 to control the opening and closing of the second control valve 362 and the size of the opening.

A cold water circulation system 1 of this embodiment connects the first cooling device 12 included in the cooling device group 10 to the heat exchange device 20 to provide a lower temperature cooling fluid, and utilizes the second cooling device included in the cooling device group 10 The device 14 communicates with the mixing chamber 342 to provide a higher temperature cooling fluid to the heating device 30. The fluid circulation of the second cooling device 14, the heating device 30 and the heat exchange device 20 can adjust the proper temperature The cold fluid makes the heat and cold circulate in the system, further reducing the energy consumption of the cooling device set 10.

Please refer to Figure 5, which is a schematic diagram of the circulation system of another embodiment of the creation. As shown in the figure, this embodiment is based on the above-mentioned embodiment, and further discloses that a fourth pipe 24 is provided inside one of the second pipes 24 The circulating pump 226 includes a seventh pipe 16, an eighth pipe 18, a ninth pipe 26, and a tenth pipe 39. One end of the seventh pipe 16 is connected to the first pipe 22, The other end of the seventh pipeline 16 is connected to the sixth pipeline 38, the seventh pipeline 16 is provided with a third control valve 162, one end of the eighth pipeline 18 is connected to the second pipeline 24, the eighth pipeline The other end of the pipeline 18 is connected to the fifth pipeline 36. The eighth pipeline 18 is provided with a fourth control valve 182. The seventh pipeline 16 uses the switch of the third control valve 162 to remove the first cold fluid C1 is introduced into the sixth pipe 38 to further reduce the temperature of the fourth cold fluid C4. The eighth pipe 18 uses the switch of the fourth control valve 182 to introduce the third hot fluid H3 to the second pipe The circuit 24 uses the first cooling device 12 with higher cooling efficiency to cool the third hot fluid H3, one end of the ninth pipe 26 is connected to the first pipe 22, and the other end of the ninth pipe is connected to the first pipe 22. Two pipes 24, one end of the tenth pipe 39 is connected to the fifth pipe 36, the other end of the tenth pipe 39 is connected to the sixth pipe 38, and the ninth pipe 26 and the tenth pipe The path 39 enables the fluid of this embodiment to circulate more flexibly. For example, if the output flow of the first circulating pump 224 is reduced due to variable frequency operation, so that the output flow of the first circulating pump 224 is smaller than the output flow of the fourth circulating pump 226, the ninth pipe The circuit 26 can introduce part of the first cold fluid C1 to the second pipeline 24; the structures and operating relationships of other components in this embodiment are the same as those in the above embodiment, so they will not be described again.

In summary, this creation provides a cold water circulation system, which connects part of the cooling device of the cooling device group to the heat exchange device, another part of the cooling device of the cooling device group is connected to the heating device, and the heat exchange device and the heating device are connected to each other to cool Another part of the cooling device of the device group directly cools the fluid of the heating device, and exchanges heat with the fluid of the heat exchange device to adjust the cold fluid of the required temperature, so that the system architecture can provide higher temperature cold water while improving the system The power efficiency solves the problem that the conventional cold water circulation system needs to consume a lot of energy when adjusting the temperature of the cooling fluid, which causes the increase in the operating cost of the factory.

Therefore, this creation is really novel, progressive, and available for industrial use. It should meet the patent application requirements of my country's patent law. Undoubtedly, I filed a creation patent application in accordance with the law. I pray that the Bureau will grant the patent as soon as possible.

However, the above is only an example of this creation, and is not used to limit the scope of implementation of this creation. Therefore, all changes and modifications made in accordance with the shape, structure, characteristics and spirit described in the scope of the patent application for this creation are equivalent. All should be included in the scope of patent application for this creation.

1: Cold water circulation system 10: Cooling device group 12: The first cooling device 14: The second cooling device 16: Seventh pipeline 162: Third control valve 18: The eighth pipeline 182: Fourth control valve 20: Heat exchange device 22: The first pipeline 222: The first control valve 224: First circulation pump 226: The fourth circulating pump 24: second pipeline 26: Ninth pipeline 30: heating device 32: The third pipeline 322: The first temperature sensing element 323: The first temperature signal 34: The fourth pipeline 342: Mixing Chamber 344: second temperature sensing element 345: Second temperature signal 346: Second circulation pump 348: Shunt Chamber 36: Fifth pipeline 362: second control valve 364: Third circulation pump 38: The sixth pipeline 39: Tenth Pipeline 40: control element 42: The first control signal 44: second control signal C1: The first cold fluid C2: second cold fluid C3: The third cold fluid C4: The fourth cold fluid H1: The first thermal fluid H2: second thermal fluid H3: The third thermal fluid H4: The fourth thermal fluid

Figure 1: It is a schematic diagram of the circulation system of the creative embodiment; Figure 2: It is a schematic diagram of the circulation system and temperature sensing element of the creative embodiment; Figure 3: It is a schematic diagram of the circulating pump of the embodiment of this creation; Figure 4: It is a schematic diagram of the electrical connection of the control element of the creative embodiment; and Figure 5: It is a schematic diagram of the circulation system of another embodiment of the creation.

1: Cold water circulation system

10: Cooling device group

12: The first cooling device

14: The second cooling device

20: Heat exchange device

22: The first pipeline

222: The first control valve

24: second pipeline

30: heating device

32: The third pipeline

34: The fourth pipeline

342: Mixing Chamber

348: Shunt Chamber

36: Fifth pipeline

362: second control valve

38: The sixth pipeline

C1: The first cold fluid

C2: second cold fluid

C3: The third cold fluid

C4: the fourth cold fluid

H1: The first thermal fluid

H2: second thermal fluid

H3: The third thermal fluid

H4: The fourth thermal fluid

Claims (10)

A cold water circulation system, which includes: A cooling device group, comprising a first cooling device and a second cooling device, the first cooling device is arranged on one side of the second cooling device; A heat exchange device connected to the first cooling device by a first pipeline and a second pipeline, the first pipeline being provided with a first control valve; and A heating device connected to the heat exchange device by a third pipeline and a fourth pipeline, the fourth pipeline is provided with a mixing chamber and a branching chamber, and the mixing chamber is connected by a sixth pipeline The second cooling device, the branching chamber is arranged between the mixing chamber and the heating device, the branching chamber is connected to the second cooling device by a fifth pipeline, and the fifth pipeline is provided with a second control valve; Wherein, by controlling the flow of fluid entering the heat exchange device through the first pipeline and the first control valve, and controlling the flow of fluid passing through the fifth pipeline and the second control valve to the second cooling device, so that The heating device reaches a preset temperature. The cold water circulation system according to claim 1, wherein a first temperature sensing element is provided inside one of the third pipelines. The cold water circulation system according to claim 2, wherein a second temperature sensing element is provided inside one of the fourth pipelines. The cold water circulation system according to claim 3, further comprising a control element electrically connected to the first control valve, the second control valve, the first temperature sensing element, and the second temperature sensing element , The control element receives a first temperature signal of the first temperature sensing element to control the opening and closing of the first control valve, and the control element receives a second temperature signal of the second temperature sensing element to control the The switch of the second control valve. The cold water circulation system according to claim 1, wherein a first circulation pump is provided inside one of the first pipelines. The cold water circulation system according to claim 1, wherein a second circulation pump is provided inside one of the fourth pipelines. The cold water circulation system according to claim 1, wherein a third circulation pump is provided inside one of the fifth pipelines. The cold water circulation system according to claim 1, further comprising a seventh pipeline, one end of the seventh pipeline is connected to the first pipeline, the other end of the seventh pipeline is connected to the sixth pipeline, and the first A third control valve is provided in the seven pipelines. The cold water circulation system according to claim 1, further comprising an eighth pipe, one end of the eighth pipe is connected to the second pipe, the other end of the eighth pipe is connected to the fifth pipe, and the first A fourth control valve is provided for the eight pipelines. The cold water circulation system according to claim 1, further comprising a ninth pipe and a tenth pipe, one end of the ninth pipe is connected to the first pipe, and the other end of the ninth pipe is connected to the first pipe Two pipelines, one end of the tenth pipeline communicates with the fifth pipeline, and the other end of the tenth pipeline communicates with the sixth pipeline.

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