Efficient circulating water cooling device of water cooler for industrial production

Abstract

The invention provides an efficient circulating water cooling device of a water cooler for industrial production, and relates to the field of industrial water-cooled water coolers. The efficient circulating water cooling device of the water cooling machine for industrial production comprises a hot water circulating section, a cold water circulating section and a water cooling heat exchanger, and further comprises a pre-cooling assembly installed on the hot water circulating section and used for cooling liquid for heat exchange in advance and a low-pressure filtering assembly, and when the water inlet pressure of the hot water circulating section is low, inlet water passes through the low-pressure filtering assembly and then flows into the water cooling heat exchanger. When the water inlet pressure of the hot water circulation section is high, inlet water does not pass through the low-pressure filtering assembly, the hot water circulation section comprises a water inlet pipe and a water return pipe, and two communication pipes are arranged between the water inlet pipe and the water return pipe. According to the efficient circulating water cooling device of the water cooling machine for industrial production, different machine operation states can be changed at will according to temperature changes in real life, a linear cooling change process exists, and a window period of cooling operation does not exist, so that the energy-saving effect can be better achieved in different seasons and different environments.

Description

Technical Field

[0001] The present invention relates to the field of industrial water-cooled chillers, and specifically to an efficient circulating water-cooling device for chillers used in industrial production. Background Art

[0002] At present, chillers are mainly divided into air-cooled chillers and water-cooled chillers, and can also be divided into normal-temperature chillers and low-temperature chillers according to the refrigeration temperature range. The working principle of a chiller is to inject a refrigerant into the internal water tank of the refrigeration system. The refrigerant is cooled by the refrigeration system of the chiller, and then the low-temperature refrigerant is injected into the equipment to be cooled by a water pump. The low-temperature refrigerant takes away the heat inside the equipment, and the heat-exchanged high-temperature refrigerant flows back to the refrigeration system for cooling again. In this way, heat is cyclically exchanged to achieve the effect of cooling the equipment.

[0003] Since industrial chillers have been performing single water-cooling treatment work in different temperature environments, a large amount of electric power resources are wasted. Therefore, an industrial chiller unit recorded in Chinese Patent CN109855386B is provided with two intelligent water-cooling modes, which perform two different water-cooling treatments in high-temperature and low-temperature environments respectively, effectively reducing the waste of energy. The above-mentioned industrial chiller unit of the Chinese patent has the following disadvantages: Since the cooling efficiency of the two different water-cooling modes of this industrial chiller unit for liquids varies greatly, if the industrial chiller used in a factory is in an environment where the temperature changes frequently and the temperature change range is not large, always using the high-efficiency water-cooling mode will result in large energy consumption. For example, if the high-efficiency water-cooling mode is always used in a normal-temperature environment, if the environmental temperature suddenly drops, the machine may simply switch to the low-temperature environment, or continuously switch back and forth between the high-temperature and low-temperature environments, which will cause poor cooling effect on the equipment and reduce the operating life of the machine. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an efficient circulating water-cooling device for chillers used in industrial production, which solves the problems raised in the above background art.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An efficient circulating water-cooling device for chillers used in industrial production includes a hot water circulation section, a cold water circulation section, and a water-cooling heat exchanger. It also includes a pre-cooling component installed on the hot water circulation section for pre-cooling the heat-exchanged liquid in advance. It further includes a low-pressure filtration component. When the water inlet pressure of the hot water circulation section is low, the inlet water passes through the low-pressure filtration component. When the water inlet pressure of the hot water circulation section is high, the inlet water does not pass through the low-pressure filtration component; The hot water circulation section includes a water inlet pipe and a water return pipe. A conduction pipe is provided between the water inlet pipe and the water return pipe. The conduction pipe connects the water inlet pipe and the water return pipe and is connected to both of them through a solenoid valve. The conduction pipe is respectively located on both sides of the precooling assembly. The water-cooled heat exchanger includes two groups of water inlet parts and water outlet parts. One group of water inlet parts is connected to the water inlet pipe, and the water outlet parts are connected to the water return pipe. Emergency drain valves are installed at positions on the other side of the water-cooled heat exchanger opposite to the hot liquid inlet and the hot liquid outlet. A high-pressure filtration assembly is provided inside the water inlet part of the water-cooled heat exchanger. The high-pressure filtration assembly is a guiding pipe. The guiding pipe is fixed at the position between two fins of the water inlet part and the water outlet part of the water-cooled heat exchanger and communicates with the space between the two plate fins. A circle of semi-circular holes is provided on the guiding pipe communicating with the two plate fins. The semi-circular holes of the two guiding pipes form a circular hole when the plate fins are combined. The guiding pipes not communicating with the space between the two plate fins are sealed after combination.

[0006] Preferably, valves are installed at the outlets of the water-cooled heat exchanger opposite to the connection with the hot water circulation section.

[0007] Preferably, the precooling assembly is installed at one end of the water inlet pipe passing over the conduction pipe. The precooling assembly includes a fin box and a fan group. Both the upper and lower ends of the fin box are connected to the water inlet pipe through circulation pipes. Temperature control valves are installed at the connection parts of the two with the water inlet pipe. When the temperature exceeds a predetermined value, the incoming water passes through the fin box. The fan group is installed on one side of the fin box to take away the heat of the fin box.

[0008] Preferably, the low-pressure filtration assembly is installed at one end of the water inlet pipe passing over the fin box.

[0009] Preferably, the low-pressure filtration assembly includes a filtration box, a central pipe, a disc filter screen, and a reverse water pipe. Both the central pipe and the reverse water pipe are connected to the water inlet pipe through solenoid valves. The filtration box is installed outside the central pipe. The central pipe extends to the bottom of the filtration box. A drain valve is provided at the bottom end of the filtration box. Multiple disc filter screens are provided and are distributed along the filtration box up and down. Their edges are sealed with the inner wall of the filtration box and the outer wall of the central pipe. The end of the reverse water pipe far from the water inlet pipe communicates with the upper part inside the filtration box.

[0010] Preferably, the cold water circulation section includes two groups of heat transfer pipes, which are respectively connected to the water inlet part and the water outlet part of the other group.

[0011] Preferably, the positions of the other side of the water-cooled heat exchanger opposite to the cold water circulation section are all sealed.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The high-efficiency circulating water cooling device of the industrial chiller. When the hot water circulation section enters hot water, if the water temperature does not exceed the predetermined value, the conduction pipe will be directly opened to allow the water to return for continued use. If the water temperature rises, two conduction pipes will be slightly opened, and then the pre-cooling component in the middle will come into play to cool the water using air cooling. According to the different temperatures at this stage, the opening degree of the solenoid valves in the two conduction pipes can be changed. If the temperature rises further, the first conduction pipe will be closed to operate the pre-cooling component, and the subsequent conduction pipes will function as a return flow. At this time, it is in the air-cooling state. If the temperature exceeds the predetermined value, a water-cooled heat exchanger will be used to achieve water-cooling. In the full-power operation mode, both the pre-cooling component and the water-cooled heat exchanger will operate for cooling. It can arbitrarily change the operating states of different machines according to the temperature changes in real life, with a linear cooling change process and no cooling operation dead period. Therefore, it can achieve better energy-saving effects in different seasons and environments.

[0013] The high-efficiency circulating water cooling device of the industrial chiller. The low-pressure filtration component can perform a simple filtration when the inlet water pressure is low to prevent problems such as crystallization, excessive scaling, and blockage inside the water-cooled heat exchanger. When the inlet water pressure is high, the low-pressure filtration component can be not used for filtration. Therefore, filtration can be achieved under normal circumstances, and the equipment can operate stably for a long time, with a high safety factor, good energy-saving effect, and can also extend the service life of factory equipment.

[0014] The high-efficiency circulating water cooling device of the industrial chiller. When the pressure in the water-cooled heat exchanger is too high due to blockage, the emergency drain valve can be manually controlled to directly empty the water-cooled heat exchanger to avoid the continuous occurrence of danger.

[0015] The high-efficiency circulating water cooling device of the industrial chiller. The high-pressure filtration component inside the water-cooled heat exchanger can further prevent impurities from entering the aluminum fins, so the heat exchange efficiency can be greatly improved. When the manual valve is opened, the flushing effect can also be achieved, with higher heat exchange efficiency and better energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Structural schematic of the present invention Figure One ; Figure 2 Structural schematic of the present invention Figure Two ; Figure 3 Structural schematic of the present invention Figure Three ; Figure 4 Front view of the internal structure of the present invention; Figure 5 Top view of the internal structure of the present invention; Figure 6Structural diagram of the pre-cooling component and the low-pressure filtration component of the present invention; Figure 7 Internal structural schematic diagram of the low-pressure filtration component of the present invention; Figure 8 Partial structural schematic diagram of the present invention; Figure 9 Structural diagram of the water-cooled heat exchanger of the present invention; Figure 10 Internal structural diagram of the water-cooled heat exchanger of the present invention; Figure 11 For the present invention Figure 10 Enlarged structural diagram of part A in; Figure 12 Operation diagram of the actual flow direction in the present invention.

[0017] In the figure: 1. Hot water circulation section; 101. Water inlet pipe; 102. Water return pipe; 103. Conducting pipe; 2. Cold water circulation section; 201. Heat transfer pipe; 3. Water-cooled heat exchanger; 4. Pre-cooling component; 401. Fin box; 402. Fan group; 403. Circulation pipe; 404. Temperature control valve; 5. Low-pressure filtration component; 501. Filtration box; 502. Central pipe; 503. Disc filter; 504. Backwater pipe; 6. High-pressure filtration component; 601. Guide pipe; 602. Semi-circular hole; 7. Emergency drain valve. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0019] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0020] In the present application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0021] In addition, in this application, descriptions such as "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0022] As Figures 1 - 9 shown, an efficient circulating water cooling device for an industrial production chiller includes a hot water circulation section 1, a cold water circulation section 2, and a water-cooled heat exchanger 3. It also includes a pre-cooling component 4 installed on the hot water circulation section 1 for pre-cooling the heat-exchanging liquid in advance. It further includes a low-pressure filtration component 5. When the inlet water pressure of the hot water circulation section 1 is low, the inlet water passes through the low-pressure filtration component 5. When the inlet water pressure of the hot water circulation section 1 is high, the inlet water does not pass through the low-pressure filtration component 5. A high-pressure filtration component 6 is provided inside the water-cooled heat exchanger 3, and valves are installed at the outlets of the water-cooled heat exchanger 3 opposite to the connection with the hot water circulation section 1.

[0023] The water-cooled heat exchanger 3 is formed by alternately stacking multiple layers of parallel partition plates and fins in the middle. The fins serve as a secondary heat transfer surface, greatly increasing the heat transfer area. The hot and cold fluids exchange heat through different flow channels. The fins strengthen the fluid turbulence and improve the heat transfer efficiency. The hot water circulation section 1 is not only used for circulating hot water but can also be used for circulating industrial waste heat such as flue gas.

[0024] Different from the prior art, the installed pre-cooling component 4 can achieve a preliminary cooling of the cooling water entering in the early stage. The preliminary cooling can prevent the equipment from being unable to conduct heat in time, resulting in high temperature, or when the equipment has been running for a period of time, the heat exchange efficiency deteriorates and the temperature fluctuates greatly. Cooling the medium entering in advance at this time can avoid problems such as large load on the subsequent water-cooled heat exchanger 3. After the staff repairs, the pre-cooling component 4 can be temporarily used, and the water cooling can continue to conduct heat.

[0025] The low-pressure filtration component 5 is also a preliminary selection device. During normal use, the high-temperature liquid containing impurities can pass through the low-pressure filtration component 5, thus avoiding the entry of impurities into the fins and causing blockage. Moreover, when the equipment needs to operate at a large flow rate, it can also be selected not to pass through the low-pressure filtration component 5. In this way, during large-flow heat exchange, the flow rate limit can be avoided, and the low-pressure filtration component 5 and the pre-cooling component 4 can be used in cooperation according to the actual usage situation.

[0026] In an alternative embodiment, the hot water circulation section 1 includes a water inlet pipe 101 and a water return pipe 102. A conduction pipe 103 is provided between the water inlet pipe 101 and the water return pipe 102. The conduction pipe 103 connects the water inlet pipe 101 and the water return pipe 102 and is connected to both of them by a solenoid valve. The conduction pipe 103 is respectively on both sides of the precooling component 4.

[0027] In this embodiment, temperature sensors and pressure sensors are installed at the joints of the conduction pipe 103 with the water inlet pipe 101 and the water return pipe 102. When the water pressure is too high, which clearly proves that the water-cooled heat exchanger 3 cannot pass a large flow of fluid, the pressure sensor prompts the solenoid valve to open. At this time, the hot water or the heat medium does not pass through the water-cooled heat exchanger 3 and continues to return. In this way, the problem of high pressure inside the water-cooled heat exchanger 3 can be quickly solved in a short time without using a water tank. The conduction pipe 103 is used in conjunction with the low-pressure filtration component 5. Without using other safety devices, the equipment does not need to install a water tank, which can further improve safety.

[0028] In an alternative embodiment, the precooling component 4 is installed at one end of the water inlet pipe 101 that crosses the conduction pipe 103. The precooling component 4 includes a fin box 401 and a fan group 402. Both the upper and lower ends of the fin box 401 are connected to the water inlet pipe 101 by circulation pipes 403. Temperature control valves 404 are installed at the joints of the two with the water inlet pipe 101. When the temperature exceeds a predetermined value, the incoming water passes through the fin box 401. The fan group 402 is installed on one side of the fin box 401 to take away the heat of the fin box 401.

[0029] In this embodiment, the fin box 401 is an aluminum hollow heat dissipation fin. There are multiple heat dissipation fins, which are arrayed into a box body. The hot water in the water inlet pipe 101 can pass through the fin box 401 and then return. After the temperature control valve 404 detects that the temperature exceeds the limit value and full power operation is required, at this time, the hot water that did not enter the water-cooled heat exchanger 3 before is led to the fin box 401, and then the fan group 402 is used to dissipate the heat of the fin box 401, so as to reduce the pressure of subsequent heat exchange. Especially in summer, the ability to recover heat is limited, so air-cooled heat dissipation can also be an immediately effective safety device.

[0030] According to the data of the temperature sensor, if the water temperature does not exceed the predetermined value, the conduction pipe 103 will be directly opened to make the water continue to be reused. If the water temperature rises, the two conduction pipes 103 will be slightly opened, and then the intermediate precooling component 4 will play a role and use air-cooled cooling. According to the different temperatures in this stage, the opening degree of the solenoid valves in the two conduction pipes 103 can be changed. If the temperature rises again, the first conduction pipe 103 will be closed to make the precooling component 4 operate, and the subsequent conduction pipe 103 will act as a return flow. At this time, it is in an air-cooled state. In the full power operation mode, both the precooling component 4 and the water-cooled heat exchanger 3 perform cooling operations.

[0031] In an optional embodiment, the low-pressure filter assembly 5 is installed on one end of the water inlet pipe 101 that passes over the fin box 401 .

[0032] In this embodiment, the fin box 401 is used at full power and when water cooling is not required. It is used frequently. Therefore, most of the time, the low-temperature cooling water is air-cooled through the fin box 401, so its daily flow rate is relatively large. Therefore, there is no need to set the low-pressure filter assembly 5 before the water inlet of the fin box 401. Otherwise, there may be frequent high-temperature alarms due to the reduction in the water inlet rate. However, this operating state requires that the high-temperature cooling water in the early stage has been filtered, especially the coolant for processing metal products, which contains more impurities inside. It must be filtered to a certain extent before the fin box 401 can be used for air cooling.

[0033] In an optional embodiment, the low-pressure filter assembly 5 includes a filter box 501, a central pipe 502, a disc filter 503 and a return pipe 504. The central pipe 502 and the return pipe 504 are both connected to the water inlet pipe 101 by an electromagnetic valve. The filter box 501 is installed outside the central pipe 502, and the central pipe 502 extends to the bottom of the filter box 501. A drain valve is provided at the bottom of the filter box 501. A plurality of disc filters 503 are provided, and are distributed along the upper and lower sides of the filter box 501. The edges thereof are sealed with the inner wall of the filter box 501 and the outer wall of the central pipe 502. The end of the return pipe 504 away from the water inlet pipe 101 is connected to the interior of the upper end of the filter box 501.

[0034] In this embodiment, the disc filter 503 can be a steel wire filter for removing impurities from the liquid. Since the medium is only circulated in the subsequent water-cooled heat exchanger 3 and there is a high-pressure filter assembly 6, there is no need to set up more sophisticated impurity removal components.

[0035] When using the low-pressure filter assembly 5, hot water enters the bottom of the filter box 501 from the central pipe 502 and then passes through the butterfly filter layer by layer, so it can be well filtered. When the solenoid valve is controlled, the low-pressure filter assembly 5 can be omitted, and different solenoid valves can also be used to make the backwash pipe 504 backwash the butterfly filter, which can effectively remove impurities in the cooling water and extend the service life of the factory equipment.

[0036] In an optional embodiment, the water-cooled heat exchanger 3 includes two groups of water inlets and water outlets, wherein the water inlet of one group is connected to the water inlet pipe 101, and the water outlet is connected to the return pipe 102. An emergency drain valve 7 is installed at a position opposite to the hot liquid inlet and the hot liquid outlet on the other side of the water-cooled heat exchanger 3.

[0037] In this embodiment, the emergency drain valve 7 is used in both emergency and non-emergency situations. When the equipment's electronic control fails, an operator can rotate the emergency drain valve 7 to release the high-pressure hot water inside the water-cooled heat exchanger 3. Or the emergency drain valve 7 can also be manually opened during regular flushing.

[0038] In an alternative embodiment, the high-pressure filtration assembly 6 is a guiding pipe 601. The guiding pipe 601 is fixed at the position between two fins at the water inlet and outlet of the water-cooled heat exchanger 3. A circle of semi-circular holes 602 is provided on the guiding pipe 601 communicating between the two plate fins. The semi-circular holes 602 of the two guiding pipes 601 form a circular hole when combined in the plate fin assembly. The guiding pipe 601 not communicating between the two plate fins is in a sealed state after combination.

[0039] In this embodiment, the semi-circular holes 602, as a later impurity removal component, can keep impurities in hot water or other media inside the guiding pipe 601 as much as possible, which is very convenient during later flushing and does not require pulsed cleaning of the inside of the fins.

[0040] In an alternative embodiment, the cold water circulation section 2 includes two groups of heat transfer pipes 201, which are respectively connected to the water inlet and outlet of another group.

[0041] The cold water circulation section 2 is connected to an external large cold water pool to achieve water-cooled cooling, or can also be connected to the refrigerant generated by a screw compressor to exchange heat with the hot water.

[0042] In an alternative embodiment, the positions of the other side of the water-cooled heat exchanger 3 opposite to the cold water circulation section 2 are all in a sealed state.

[0043] Working principle: Normal heat exchange: When the hot water circulation section receives hot water, if the water temperature does not exceed the predetermined value, the conduction pipe 103 will be directly opened to allow the water to continue to be reused. If the water temperature rises, the two conduction pipes 103 will be slightly opened, and then the pre-cooling assembly 4 will play a role to cool with air. According to the temperature in this stage, the opening degree of the solenoid valves in the two conduction pipes 103 can be changed. If the temperature rises again, the first conduction pipe 103 will be closed to make the pre-cooling assembly 4 operate, and the subsequent conduction pipes 103 will act as a return flow. At this time, it is in an air-cooled state. If the temperature exceeds the predetermined value, the water-cooled heat exchanger 3 will be used to achieve water-cooled cooling. In the full-power operation mode, both the pre-cooling assembly 4 and the water-cooled heat exchanger 3 will operate for cooling, and can arbitrarily change the operating states of different machines according to the temperature changes in real life.

[0044] If there are metal debris, inorganic salts, etc. inside the accessed hot water, then when entering the inside of the water-cooled heat exchanger 3, it will pass through the high-pressure filtration component 6 and then be blocked by the semi-circular holes 602 on the guiding pipe 601. With the operation of the device, the particles in the hot water are not easily introduced into the fins, so that the heat exchange efficiency can always be maintained at a high level during long-term use. Regularly opening the emergency drain valve 7 can flush the inside of the guiding pipe 601.

[0045] Emergency situation: Control the solenoid valve to open, and the conduction pipe 103 connects the water inlet pipe 101 and the water return pipe 102. At this time, the high-pressure hot water continues to return from the conduction pipe 103 to the water return pipe 102 without passing through the water-cooled heat exchanger 3.

[0046] Under full-power operation: When the pre-cooling component 4 is passing through the hot water, if the water inlet and return water temperatures both exceed the preset value due to low heat exchange efficiency, then the pre-cooling component 4 also starts to operate at full power, so as to pre-cool the hot water to be heat-exchanged in advance.

[0047] Electrical control failure: When the pressure in the water-cooled heat exchanger 3 is too high due to blockage, the emergency drain valve 7 can be manually controlled to directly empty the water-cooled heat exchanger 3 to avoid the continuous occurrence of danger.

[0048] When receiving hot water with more impurities in daily life, the low-pressure filtration component 5 can perform a simple filtration when the inlet water pressure is low to prevent problems such as excessive crystallization and scaling inside the water-cooled heat exchanger 3, resulting in blockage. When the inlet water pressure is high, the low-pressure filtration component 5 can be not used for filtration. Therefore, filtration can be achieved under normal circumstances, and the device can operate stably for a long time.

[0049] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0050] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient circulating water cooling device for a chiller used in industrial production, comprising an equipment heat dissipation housing, a hot water circulation section (1), a cold water circulation section (2), and a water-cooled heat exchanger (3), characterized in that: It further includes a precooling component (4) installed on the hot water circulation section (1) for pre-cooling the heat-exchanging liquid in advance, and a low-pressure filtration component (5). When the inlet water pressure of the hot water circulation section (1) is low, the inlet water passes through the low-pressure filtration component (5). When the inlet water pressure of the hot water circulation section (1) is high, the inlet water does not pass through the low-pressure filtration component (5). The hot water circulation section (1) includes a water inlet pipe (101) and a water return pipe (102). There are two conduction pipes (103) between the water inlet pipe (101) and the water return pipe (102). The conduction pipes (103) connect the water inlet pipe (101) and the water return pipe (102) and are connected to them through solenoid valves. The conduction pipes (103) are respectively on both sides of the precooling component (4). The water-cooled heat exchanger (3) includes two groups of water inlet parts and water outlet parts. One group of the water inlet part is connected to the water inlet pipe (101), and the water outlet part is connected to the water return pipe (102). Emergency drain valves (7) are installed at positions on the other side of the water-cooled heat exchanger (3) opposite to the hot liquid inlet and the hot liquid outlet respectively. A high-pressure filtration component (6) is provided in the water inlet part of the water-cooled heat exchanger (3). The high-pressure filtration component (6) is a guiding pipe (601). The guiding pipe (601) is fixed at the position between two fins of the water inlet part and the water outlet part of the water-cooled heat exchanger (3). A circle of semi-circular holes (602) is provided on the guiding pipe (601) communicating between the two plate fins. The semi-circular holes (602) of the two guiding pipes (601) form a circular hole after the plate fins are combined. The guiding pipe (601) not communicating between the two plate fins is in a sealed state after combination.

2. The high-efficiency circulating water cooling device of the chiller for industrial production according to claim 1, wherein: Valves are installed at the outlets of the water-cooled heat exchanger (3) opposite to the connection with the hot water circulation section (1).

3. The high-efficiency circulating water cooling device of the chiller for industrial production according to claim 2, characterized in that: The precooling component (4) is installed at one end of the water inlet pipe (101) passing over the conduction pipe (103). The precooling component (4) includes a fin box (401) and a fan group (402). Both the upper and lower ends of the fin box (401) are connected to the water inlet pipe (101) through circulation pipes (403). A temperature control valve (404) is installed at the connection between them and the water inlet pipe (101). When the temperature exceeds a predetermined value, the inlet water passes through the fin box (401). The fan group (402) is installed on one side of the fin box (401) for taking away the heat of the fin box (401).

4. The high-efficiency circulating water cooling device of the chiller for industrial production according to claim 3, wherein: The low-pressure filtration component (5) is installed at one end of the water inlet pipe (101) passing over the fin box (401).

5. The high-efficiency circulating water cooling device of the chiller for industrial production according to claim 4, characterized in that: The low-pressure filtration assembly (5) includes a filtration tank (501), a central pipe (502), a disc filter (503), and a backwater pipe (504). Both the central pipe (502) and the backwater pipe (504) are connected to the water inlet pipe (101) by solenoid valves. The filtration tank (501) is installed outside the central pipe (502), and the central pipe (502) extends to the bottom of the filtration tank (501). A drain valve is provided at the bottom end of the filtration tank (501). A plurality of disc filters (503) are provided and are distributed along the filtration tank (501) up and down. Their edges are sealed with the inner wall of the filtration tank (501) and the outer wall of the central pipe (502). One end of the backwater pipe (504) away from the water inlet pipe (101) is internally communicated with the upper end of the filtration tank (501).

6. The high-efficiency circulating water cooling device for the industrial production chiller according to claim 5, characterized in that: The cold water circulation section (2) includes two groups of heat transfer pipes (201), which are respectively connected to the water inlet part and the water outlet part of another group.

7. The high-efficiency circulating water cooling device for the industrial chiller according to claim 6, characterized in that: The other side of the water-cooled heat exchanger (3) opposite to the cold water circulation section (2) is in a sealed state.

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