CN117917542A - Constant-pressure circulating industrial water cooling system and method - Google Patents

Abstract

The invention relates to a constant-pressure circulating industrial water cooling system and a method, and relates to the technical field of industrial circulating water cooling, wherein the constant-pressure circulating industrial water cooling system comprises a cooling system and a water storage system, a first circulating water supply device is arranged between the water storage system and a workshop, a second circulating water supply device is arranged between the cooling system and the water storage system, the water storage system is connected with municipal water supply through a water inlet pipeline so as to convey municipal water into the water storage system, and a softening system is arranged between the municipal water supply and the water storage system and between the second circulating water supply devices; the invention has the effects of better controlling the industrial water cooling system and improving the operation convenience.

Description

Constant-pressure circulating industrial water cooling system and method

Technical Field

The application relates to the technical field of industrial circulating water cooling, in particular to a constant-pressure circulating industrial water cooling system and method.

Background

At present, in industrial production, particularly in the industries of injection molding, blow molding, extrusion molding and the like, a water cooling system is an indispensable important ring; specifically, the circulating water cooling system used in the current industrial production is mainly used for cooling equipment or elements, and excessive heat is taken away by flowing water, so that the failure caused by the increase of the temperature of a workpiece is avoided, and the accident is avoided. The energy-saving water supply device is mainly based on a PLC logic control technology and is formed by combining a frequency converter and a water pump. The water pump parameters are adjusted based on the actual pressure in the pipe network by setting the pressure parameters of the water inlet and outlet ends, so as to achieve the constant water supply effect of the cooling pipe network.

In the field of the existing disclosed industrial water cooling system, for example, chinese patent with publication number CN207649153U discloses an industrial air-cooled and water-cooled dual-purpose water cooling system, which specifically includes: the air-cooled condenser comprises a compressor, a water-cooled shell-and-tube condenser, an air-cooled condenser and a shell-and-tube evaporator, wherein the refrigerant outlets of the compressor are respectively communicated with the refrigerant inlets of the water-cooled shell-and-tube condenser and the air-cooled condenser; specifically, the cooling operation is performed through the water cooling pipe and the air cooling pipe, and the cooling device has the advantages of being simple in structure and convenient to operate, and capable of converting air cooling and water cooling according to user requirements.

However, in the prior art, the cooling operation is performed through the water cooling pipeline, but in the actual production process, the positions of each working unit are different, so that the distance between the corresponding cooling pipeline and each working unit is different, and the positions of the cooling water tanks are generally fixed, so that the positions of the cooling pipelines to different units are inevitably different; in addition, after cooling water is cooled, the temperature of water in the water return pipeline can rise, the volume of high-temperature water in the water return pipe is increased, the pressure in the water return pipeline can be increased under the condition that the water quantity is unchanged, the pressure difference is caused, and the influence on actual water supply and return control can be brought about. Based on this, there is room for improvement over existing water cooling systems.

Disclosure of Invention

In order to enable an industrial water cooling system to be better controlled and improve operation convenience, the application provides a constant-pressure circulating industrial water cooling system and a constant-pressure circulating industrial water cooling method.

In a first aspect, the application provides a constant-pressure circulating industrial water cooling system, which adopts the following technical scheme:

The constant-pressure circulating industrial water cooling system comprises a cooling system and a water storage system, wherein a first circulating water supply device is arranged between the water storage system and a workshop, a second circulating water supply device is arranged between the cooling system and the water storage system, the water storage system is connected with municipal water supply through a water inlet pipeline so as to convey municipal water into the water storage system, and softening systems are arranged between the municipal water supply and the water storage system and between the second circulating water supply devices;

The first circulating water supply device comprises a first circulating water supply pipe and a first circulating water return pipe, the first circulating water supply pipe and the first circulating water return pipe are both connected between the water storage system and required cooling equipment, the first circulating water supply pipe and the first circulating water return pipe form cooling pipelines, and the lengths of the cooling pipelines are all the same;

And a control device is arranged on the first circulating water supply pipe.

Preferably, the pipe diameter of the first circulating water supply pipe is smaller than the pipe diameter of the first circulating water return pipe.

Preferably, the second circulating water supply device comprises a second circulating water supply pipe and a second circulating water return pipe, the second circulating water supply pipe and the second circulating water return pipe are both arranged between the cooling system and the water storage system, the second circulating water supply pipe is also provided with a control device, and the pipe diameter of the second circulating water supply pipe is smaller than that of the second circulating water return pipe;

The softening system comprises a multi-medium sand filtering tower, an activated carbon filtering tower and a resin softening tower, wherein the multi-medium sand filtering tower, the activated carbon filtering tower and the resin softening tower are sequentially arranged and are communicated with a salt barrel, and electrolyte salt in the salt barrel can be transferred into the resin softening tower.

Preferably, the cooling system is arranged in an elevated mode, the cooling system is subjected to airtight treatment, the height of the lowest position of the cooling system is larger than that of the highest position of the water storage system, so that a height difference is formed, and water cooled in the cooling system can freely fall into the water storage system.

Preferably, the control device comprises a circulating water pump, a check valve and a control valve which are sequentially arranged, and the circulating water pump drives cooling water in the water storage system to be conveyed to a workshop.

Preferably, a frozen water unit is further arranged between the cooling system and the water storage system, the frozen water unit is connected with the water storage system through a frozen water supply pipe to convey frozen water to the water storage system, the water storage system conveys warm water in the water storage system to the frozen water unit through a frozen water return pipe, and a control device is also arranged on the frozen water return pipe;

The utility model discloses a refrigerating system, including refrigerating system, cooling system, control device, cooling system and return water pipe, the refrigerating system is connected with cooling system through preliminary water supply pipe and cooling system and carries the warm water that withdraws from the water storage system to among the cooling system, cooling system is connected in order to carry the refrigerated water of cooling system to the refrigerating system through preliminary water return pipe, also be provided with controlling means on the preliminary water return pipe, just cooling system increases the setting, cooling system minimum height is greater than the highest position height of refrigerating system, in the hydroenergy free whereabouts of cooling system in the refrigerating system to the water return pipe is greater than the feed water pipeline.

Through the technical disclosure, firstly, the lengths of the cooling pipelines are the same, and as each cooling pipeline is controlled by one circulating water pump, when the lengths of the cooling pipelines are the same, the pressures in the cooling pipelines can be ensured to be the same, and the pressure of the whole cooling pipeline can be more conveniently controlled according to a preset pressure value when the operation is actually performed; in addition, the pipe diameter of the first circulating water supply pipe is smaller than that of the first water return pipe, the temperature of the cooling water after passing through a machine tool in a workshop is increased, the volume of the cooling water is increased, the pressure in the first water return pipe is correspondingly increased, and the temperature of the cooling water is difficult to control, so that the corresponding pressure value in the first water return pipe is difficult to ensure to be constant all the time, and the internal diameter of the first water return pipe is thickened, so that the pressure value in the cooling water after being heated by the machine tool in the workshop is not increased suddenly, and the phenomenon of backflow of hot water is less likely to occur.

Finally, the application also discloses a constant-pressure circulating industrial water cooling method, which comprises the following steps:

S1: the equipment debugging is carried out, according to construction requirements, the actual survey is carried out on a workshop site, the position of a machine tool is depicted, equipment debugging and installation are carried out immediately, a water storage system, a cooling system and a freezing water unit are installed, the water storage system is communicated with municipal water, a softening system is installed, the cooling system, the water storage system and the freezing water unit are connected through pipelines, and the electrifying networking of the equipment is realized;

S2: the cooling system is used for cooling workshops, so that normal cooling is guaranteed, after cooling, the cooling water is heated, then flows back to the water storage system through a pipeline, after the warm water flows back to the water storage system, the warm water is conveyed to the cooling system for cooling, and after cooling by the cooling system, the cooling water enters the water storage system again for cooling by the cooling water circulation;

S3: after the cooling water is recycled into the water storage system in the step S2, if the water temperature is higher, the water is frozen by the water freezing unit, the water is subjected to further freezing treatment, the temperature of the cooling water is guaranteed to be low enough, the water freezing unit is communicated with the cooling system, the warm water can be subjected to preliminary cooling by the cooling system, the water subjected to preliminary cooling is conveyed into the water freezing unit for reinforced cooling, and then the water is subjected to cooling in a workshop by the water storage system;

S4: and (3) alternately water-cooling, namely performing adaptive alternate adjustment of the device according to actual seasons and weather temperature adjustment, synchronizing the step S1 and the step S2 to perform water-cooling when the weather temperature is low, and performing water-cooling through the step S3 when the weather temperature is high, so that the optimal water-cooling effect is achieved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The lengths of the cooling pipelines are the same, and as each cooling pipeline is controlled by one circulating water pump, the pressures in the cooling pipelines can be ensured to be the same when the lengths of the cooling pipelines are the same, and the pressure of the whole cooling pipeline can be more conveniently controlled according to a preset pressure value when the operation is actually performed;

2. In the application, the pipe diameter of the first circulating water supply pipe is smaller than that of the first water return pipe, the volume of the cooling water is increased due to the fact that the temperature of the cooling water is increased after the cooling water passes through a machine tool in a workshop, and correspondingly, the pressure in the first water return pipe is increased due to the fact that the temperature of the cooling water is difficult to control, and the corresponding pressure value in the first water return pipe is difficult to ensure constant all the time;

Drawings

Fig. 1 is a schematic view of the structure of the cooling system and the water storage system of the present application.

Fig. 2 is an enlarged schematic view of the portion a in fig. 1.

Fig. 3 is a schematic diagram of the installation of the cooling circuit.

Fig. 4 is a second schematic diagram of the installation of the cooling circuit.

Fig. 5 is a schematic diagram of the installation of the cooling circuit.

Fig. 6 is a schematic structural view of the softening system.

Fig. 7 is a schematic view of the installation of the water chiller.

Fig. 8 is a second schematic installation view of the water chiller.

Fig. 9 is a schematic diagram of a multiple unit assembly.

Fig. 10 is a schematic diagram of a multiple unit assembly.

Reference numerals illustrate: 1. a cooling system; 2. a water storage system; 3. a first circulation water supply device; 4. a second circulation water supply device; 5. a water inlet pipe; 6. a softening system; 31. a first circulation water supply pipe; 32. a first circulating water return pipe; 7. a control device; 41. a second circulation water supply pipe; 42. a second circulating water return pipe; 61. a multi-medium sand filtration tower; 62. an activated carbon filter tower; 63. a resin softening tower; 71. a circulating water pump; 72. a check valve; 73. a control valve; 8. a water freezing unit; 81. freezing the water supply pipe; 82. freezing the return water pipe; 83. a preliminary water supply pipe; 84. and a primary return pipe.

Detailed Description

The application is described in further detail below with reference to fig. 1-10.

The embodiment of the application discloses a constant-pressure circulating industrial water cooling system and a constant-pressure circulating industrial water cooling method, which are mainly applied to the production industries of injection molding, die casting and the like, and the workshop machine tools, dies and the like are rapidly and effectively cooled through the water cooling system, so that the production is kept at a preset temperature, and the product manufacturing speed is improved.

Embodiment one:

Referring to fig. 1, in this embodiment, a constant pressure circulation industrial water cooling system disclosed in the present application includes a cooling system 1 and a water storage system 2, and in this embodiment, the cooling system 1 is a cooling tower, mostly based on air cooling or water cooling, and the cooling tower is widely used in the existing industrial production; the water storage system 2 is a large water tank made of three-zero-four stainless steel and is used for storing and storing water.

With continued reference to fig. 1, a first circulating water supply apparatus 3 is provided between the water storage system 2 and the plant, and a control apparatus 7 is provided on the first circulating water supply pipe 31. A second circulating water supply device 4 is arranged between the cooling system 1 and the water storage system 2, and the water storage system 2 is connected with municipal water supply through a water inlet pipeline 5 so as to convey the municipal water into the water storage system 2; in the actual operation process, municipal water supply is introduced into the water storage system 2 through the water inlet pipeline 5, water is introduced into a workshop through the first circulating water supply device 3 to cool a machine tool in the workshop, and cooled warm water is reintroduced into the water storage system 2 through the first circulating water supply device 3 after cooling, so that cooling circulation is formed in a reciprocating manner.

After long-time cooling, the temperature of water in the water storage system 2 rises, and then warm water in the water storage system 2 is introduced into the cooling system 1 through the second circulating water supply device 4 to cool, so that after low temperature is needed, the cooled low temperature water is drained into the water storage system 2 again through the second circulating water supply device 4, and the cooling, cooling and circulating cooling work flow is achieved.

In addition, a softening system 6 is arranged between the municipal water supply and water storage system 2 and the second circulating water supply device 4; through softening the system 6, can effectively get rid of municipal water supply's impurity to impurity in preventing water causes the jam to cooling pipe, and because cooling system 1 uses for a long time, the pipeline is difficult for changing, based on this, softening the system 6 can protect the effect to the pipeline effectively.

With continued reference to fig. 1, in this embodiment, the first circulating water supply apparatus 3 includes a first circulating water supply pipe 31 and a first circulating water return pipe 32, and the first circulating water supply pipe 31 and the first circulating water return pipe 32 are both connected between the water storage system 2 and the machine tool; the cold water stored in the water storage device is conveyed into the machine tool of the workshop through the first circulating water supply pipe 31 so as to cool the machine tool, the cooling water is recovered through the first circulating water return pipe 32 after cooling, and the cooled warm water is recovered into the water storage system 2 so as to form a complete cooling cycle.

Referring to fig. 3 to 5, it should be further noted that, in this embodiment, the first circulation water supply pipe 31 and the first circulation water return pipe 32 form cooling pipes, and all the cooling pipes have the same length; namely, when the first circulation water supply pipe 31 is longer, the length of the first circulation water return pipe 32 is correspondingly shortened, when the first circulation water supply pipe 31 is shorter, the length of the first circulation water return pipe 32 is correspondingly increased, but the total length of the first circulation water supply pipe and the first circulation water supply pipe is the same, and the lengths of the cooling pipelines are the same. In the embodiment of the application, a plurality of actual production conditions are disclosed, which are all based on the same length of the cooling pipeline.

In addition, in order to further improve the convenience of pressure control in the actual cooling pipeline, the pipe diameter of the first circulation water feed pipe 31 is smaller than that of the first water return pipe. The temperature of the cooling water is increased after the cooling water passes through a machine tool in a workshop, the volume of the cooling water is increased, the pressure in the first water return pipe is correspondingly increased, and the temperature of the cooling water is difficult to control, so that the corresponding pressure value in the first water return pipe is difficult to ensure to be constant all the time, and the internal pressure value of the cooling water is not suddenly increased after the cooling water passes through the machine tool in the workshop and is heated by thickening the internal diameter of the first water return pipe, so that the phenomenon of backflow of hot water is less likely to occur; to improve the actual control.

With continued reference to fig. 1, in an embodiment of the present application, the second circulating water supply apparatus 4 includes a second circulating water supply pipe 41 and a second circulating water return pipe 42, where the second circulating water supply pipe 41 and the second circulating water return pipe 42 are both disposed between the cooling system 1 and the water storage system 2, and the second circulating water supply pipe 41 is also provided with a control device 7, and the pipe diameter of the second circulating water supply pipe 41 is smaller than that of the second circulating water return pipe 42.

In the actual operation process, the warm water in the water storage system 2 is sent into the cooling system 1 through the second circulating water-feeding pipe, and after the temperature of the cooling system 1 is reduced, the cooled water is sent back into the water storage system 2 through the second circulating water-feeding pipe 42, so that the effect of circulating temperature reduction is achieved.

Referring to fig. 2, the control device 7 according to the embodiment of the present application includes a circulating water pump 71, a check valve 72, and a control valve 73, wherein the circulating water pump 71 drives the cooling water in the water storage system 2 to be transported to the workshop; through the setting of controlling means 7 for can be more convenient operation at the in-process of intaking and return water.

Also, referring back to fig. 1, the cooling system 1 is arranged to be elevated, the height of the lowest part of the cooling system 1 is greater than that of the highest part of the water storage system 2, and the water cooled in the cooling system 1 can freely fall into the water storage system 2; in addition, the cooling system 1 performs sealing treatment, namely cooling tower sealing treatment, and under the condition that the pipe diameter of the second circulating water supply pipe 41 is smaller than that of the second circulating water return pipe 42, so that after water enters the cooling system 1, the water outlet speed is higher than the water inlet speed, and the cooling tower sealing treatment, namely siphon principle, can accelerate the circulating flow of water, besides, the cooling system 1 is lifted for treatment, and the water at a high position flows to the water storage system 2 at a low position more quickly.

Referring to fig. 6, the softening system 6 in this embodiment is shown to be a schematic structure, the softening system 6 includes a multi-medium sand filter tower 61, an activated carbon filter tower 62 and a resin softening tower 63, and the multi-medium sand filter tower 61, the activated carbon filter tower 62 and the resin softening tower 63 are sequentially arranged, the resin softening tower 63 is communicated with a salt tank, and electrolyte salt in the salt tank can be transferred into the resin softening tower 63. The municipal water supply entering the water storage system 2 is softened and decontaminated through the softening system 6, so that the situation that the system is not easy to be blocked in the normal operation process is ensured.

Embodiment two:

Because the cooling system 1 is an air cooling system, the cooling effect is difficult to achieve in hot weather, and a chilled water system is also disclosed in the embodiment.

Referring to fig. 7, specifically, a water chiller 8 is further disposed between the cooling system 1 and the water storage system 2, the water chiller 8 is connected to the water storage system 2 through a water chiller pipe 81 to convey chilled water to the water storage system 2, the water storage system 2 conveys warm water in the water storage system 2 to the water chiller 8 through a water chiller pipe 82, and the water chiller pipe 82 is also provided with a control device 7, and it should be noted that the water chiller 8 is an industrial water chiller on the market, etc. and can quickly cool water to a set temperature, which is not described in detail in the prior art.

The frozen water machine set 8 is connected with the cooling system 1 through a primary water supply pipe 83 to convey warm water recovered from the water storage system 2 by the frozen water machine set 8 to the cooling system 1, the cooling system 1 is connected with the frozen water machine set 8 through a primary water return pipe 84 to convey the frozen water of the cooling system 1 to the frozen water machine set 8, a control device 7 is also arranged on the primary water return pipe 84, the cooling system 1 is heightened, the lowest position of the cooling system 1 is higher than the highest position of the frozen water machine set 8, and the cooled water energy in the cooling system 1 can freely fall into the frozen water machine set 8.

When the chilled water is used, the warm water in the water storage system 2 is sent into the chilled water unit 8, and the chilled water is cooled and returned to the water storage system 2 again for further enhanced cooling of the chilled water; meanwhile, when the water storage system 2 is subjected to warm water in the water freezing unit 8, the warm water can be sent into the cooling system 1 for preliminary cooling, and then the warm water after preliminary cooling is sent into the water freezing unit 8 for cooling, so that the actual cooling efficiency is improved.

Embodiment III:

On the basis of the second embodiment, in order to better control water under actual weather conditions, namely control of cooling in winter with hot water and cooling in summer, a winter and summer water cooling system is also disclosed in the embodiment.

Referring to fig. 8, specifically, on the basis of the second embodiment, a first alternate water return pipeline is provided between the water storage system 2 and the cooling system 1, and a first alternate water supply pipeline is provided between the cooling system 1 and the water storage system 2, when the water temperature is low in winter, only the first alternate water return pipeline and the first alternate water supply pipeline need to be opened, and the pipeline of the water chilling unit 8 is closed, so that normal-temperature water cooling can be realized; when the water temperature is higher in summer, the first alternate water supply pipeline and the first alternate water return pipeline are closed, so that the cooling water passes through the water chilling unit 8, and the actual effective cooling is achieved.

Embodiment four:

Referring to fig. 9 in this embodiment, a double-waterway cooling tower system is also disclosed, in which two sets of winter and summer water cooling systems as in example three are added, and in which the same set of water chiller 8 and set of cooling system 1 are used to cool the cooling water.

In addition, referring to fig. 9-10, the plurality of cooling waterways can synchronously cool in different workshops, and the number of the actual cooling systems 1 and the number of the freezing units 8 can be set according to actual needs.

It should be noted that in the embodiment of the present application, the devices are all connected through a pipeline, and the pipeline is provided with the control device 7 according to the need.

Finally, the application also discloses a constant-pressure circulating industrial water cooling system and a method, wherein the system comprises the following steps:

S1: the equipment debugging is carried out, according to construction requirements, the actual survey is carried out on a workshop site, the position of a machine tool is depicted, equipment debugging and installation are carried out immediately, a water storage system 2, a cooling system 1 and a water freezing unit 8 are installed, the water storage system 2 is communicated with municipal water, a softening system 6 is installed, the cooling system 1, the water storage system 2 and the water freezing unit 8 are connected through pipelines, and the electrifying networking of the equipment is realized;

S2: the cooling system comprises a water storage system 2, a pipeline, a cooling system 2, a cooling system 1, a cooling system 2 and a cooling system 2, wherein the cooling system is used for cooling workshops;

S3: after the cooling water is recycled into the water storage system 2 in the step S2, if the water temperature is higher, the water is frozen by the water freezing unit 8, the water is further frozen, the temperature of the cooling water is guaranteed to be low enough, the water freezing unit 8 is communicated with the cooling system 1, the warm water can be subjected to preliminary cooling by the cooling system 1, then the water subjected to preliminary cooling is conveyed into the water freezing unit 8 for reinforced cooling, and then the water is subjected to workshop cooling by the water storage system 2;

S4: and (3) alternately water-cooling, namely performing adaptive alternate adjustment of the device according to actual seasons and weather temperature adjustment, synchronizing the step S1 and the step S2 to perform water-cooling when the weather temperature is low, and performing water-cooling through the step S3 when the weather temperature is high, so that the optimal water-cooling effect is achieved.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims (7)

1. The constant-pressure circulating industrial water cooling system comprises a cooling system (1) and a water storage system (2), and is characterized in that: a first circulating water supply device (3) is arranged between the water storage system (2) and a workshop, a second circulating water supply device (4) is arranged between the cooling system (1) and the water storage system (2), the water storage system (2) is connected with municipal water supply through a water inlet pipeline (5) so as to convey municipal water into the water storage system (2), and a softening system (6) is arranged between the municipal water supply and the water storage system (2) and between the second circulating water supply devices (4);

The first circulating water supply device (3) comprises a first circulating water supply pipe (31) and a first circulating water return pipe (32), the first circulating water supply pipe (31) and the first circulating water return pipe (32) are connected between the water storage system (2) and required cooling equipment, the first circulating water supply pipe (31) and the first circulating water return pipe (32) form cooling pipelines, and the lengths of the cooling pipelines are all the same;

A control device (7) is arranged on the first circulating water supply pipe (31).

2. The constant pressure circulating industrial water cooling system of claim 1, wherein: the pipe diameter of the first circulating water supply pipe (31) is smaller than that of the first circulating water return pipe (32).

3. The constant pressure circulating industrial water cooling system of claim 1, wherein: the second circulating water supply device (4) comprises a second circulating water supply pipe (41) and a second circulating water return pipe (42), the second circulating water supply pipe (41) and the second circulating water return pipe (42) are arranged between the cooling system (1) and the water storage system (2), the second circulating water supply pipe (41) is also provided with a control device (7), and the pipe diameter of the second circulating water supply pipe (41) is smaller than that of the second circulating water return pipe (42);

The softening system (6) comprises a multi-medium sand filtering tower (61), an active carbon filtering tower (62) and a resin softening tower (63), wherein the multi-medium sand filtering tower (61), the active carbon filtering tower (62) and the resin softening tower (63) are sequentially arranged, the resin softening tower (63) is communicated with a salt barrel, and electrolyte salt in the salt barrel can be transferred into the resin softening tower (63).

4. A constant pressure circulating industrial water cooling system according to claim 3, wherein: the cooling system (1) is arranged in an elevated mode, the cooling system (1) is subjected to airtight treatment, the height of the lowest position of the cooling system (1) is larger than that of the highest position of the water storage system (2), a height difference is formed, and water cooled in the cooling system (1) can freely fall into the water storage system (2).

5. A constant pressure circulating industrial water cooling system according to claim 3, wherein: the control device (7) comprises a circulating water pump (71), a check valve (72) and a control valve (73) which are sequentially arranged, and the circulating water pump (71) drives cooling water in the water storage system (2) to be conveyed to a workshop.

6. The constant pressure circulating industrial water cooling system of claim 4, wherein: a frozen water unit (8) is further arranged between the cooling system (1) and the water storage system (2), the frozen water unit (8) is connected with the water storage system (2) through a frozen water supply pipe (81) to convey frozen water to the water storage system (2), the water storage system (2) conveys warm water in the water storage system (2) to the frozen water unit (8) through a frozen water return pipe (82), and a control device (7) is also arranged on the frozen water return pipe (82);

The utility model provides a refrigerating unit (8) is connected with cooling system (1) through preliminary water supply pipe (83) and is carried in refrigerating unit (8) to cooling system (1) with the warm water that retrieves in water storage system (2), cooling system (1) are connected in order to carry refrigerating unit (8) with refrigerating unit (1) refrigerated water through preliminary wet return (84), also be provided with controlling means (7) on preliminary wet return (84), just cooling system (1) overhead setting, cooling system (1) minimum height is greater than the highest height of refrigerating unit (8), in refrigerating unit (8) are fallen freely to the hydroenergy through the cooling in cooling system (1) to the wet return is greater than the feed pipe.

7. A constant-pressure circulating industrial water cooling method is characterized in that: a constant pressure cycle industrial water cooling system comprising any one of claims 1-4, wherein the water cooling method comprises the steps of:

S1: the equipment debugging is carried out, according to construction requirements, the actual survey is carried out on a workshop site, the position of a machine tool is depicted, equipment debugging and installation are carried out immediately, a water storage system (2), a cooling system (1) and a freezing water unit (8) are installed, the water storage system (2) is communicated with municipal water, a softening system (6) is installed, the cooling system (1), the water storage system (2) and the freezing water unit (8) are connected through pipelines, and the equipment electrifying networking is realized;

S2: the workshop is cooled through the water storage system (2) to ensure the normal operation of cooling, after the workshop is cooled, the cooling water is heated, then flows back to the water storage system (2) through a pipeline, after the warm water flows back to the water storage system (2), the warm water is conveyed to the cooling system (1) to cool down, and after the workshop is cooled down through the cooling system (1), the cooling water enters the water storage system (2) again to cool down through the water circulation;

S3: after the cooling water is recycled into the water storage system (2) in the step S2, if the water temperature is higher, the water is frozen by the water freezing unit (8), the water is subjected to further freezing treatment, the temperature of the cooling water is guaranteed to be low enough, the water freezing unit (8) is communicated with the cooling system (1), the warm water can be subjected to preliminary cooling through the cooling system (1), then the water subjected to preliminary cooling is conveyed into the water freezing unit (8) to be subjected to the reinforced cooling, and then the water is subjected to the cooling of a workshop through the water storage system (2);

S4: and (3) alternately water-cooling, namely performing adaptive alternate adjustment of the device according to actual seasons and weather temperature adjustment, synchronizing the step S1 and the step S2 to perform water-cooling when the weather temperature is low, and performing water-cooling through the step S3 when the weather temperature is high, so that the optimal water-cooling effect is achieved.