Water circulation system and production workshop

Abstract

The invention provides a water circulation system and a production workshop, and belongs to the technical field of water circulation. The water circulation system comprises a steam pipeline, a condensation pipe, a water storage tank and a spraying pipe. The two ends of the condensation pipe are communicated with the steam pipeline and the water storage tank respectively. The spraying pipe is communicated with the water storage tank, the water storage tank is used for supplying water to the spraying pipe, and the spraying pipe is used for spraying an air conditioning system in a production workshop. In this way, liquid water obtained after steam condensation can be reutilized, and therefore the use amount of water in a production workshop is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of water circulation, and in particular to a water circulation system and a production workshop. Background Art

[0002] In today's society, as businesses are the main drivers of economic activity, water conservation is of paramount importance. Water resources are not inexhaustible, and businesses' high water consumption, if not managed, will exacerbate the water shortage crisis. Saving water can reduce costs and improve economic efficiency. It also demonstrates corporate social responsibility, fosters a positive image, and enhances market competitiveness. In the automotive manufacturing industry, the painting process, as the most water-intensive of the four major manufacturing processes, demands even greater attention for water conservation. The painting process occupies a crucial position among the four major automotive manufacturing processes, and its water consumption is staggering. The painting process accounts for 70% of the total water consumption of the four major automotive manufacturing processes, highlighting its high dependence on water resources. Taking daily water consumption as an example, the average daily water consumption reaches 1,600 tons.

[0003] During the painting process, production workshops (such as spray booths) use an air-conditioning system with top air supply and bottom exhaust. This system requires constant temperature and humidity all year round, and the temperature must be controlled between 22°C and 28°C. The temperature of the spray booth is controlled by using steam and chilled water. After condensation, the steam is discharged through the condenser. According to monitoring, the condenser produces 240 tons of condensed water every day. The humidity of the spray booth needs to be maintained between 50% and 80%. Water spraying is needed to adjust the humidity of the air-conditioning system, while the temperature is adjusted. The water spraying system currently uses tap water for water replenishment, which requires approximately 200-300 tons of tap water per day, which means that the production workshop needs to consume a large amount of water every day.

[0004] Therefore, how to reduce the water consumption in vehicle production workshops is a key issue that needs to be solved. Summary of the Invention

[0005] The present disclosure provides a water circulation system and a production workshop, which can solve the technical problems existing in the relevant technologies. The technical solutions of the water circulation system and the production workshop are as follows.

[0006] In a first aspect, the present disclosure provides a water circulation system, the water circulation system comprising a steam pipeline, a condenser pipe, a water storage tank and a spray pipe;

[0007] The steam pipeline contains steam, and both ends of the condenser are respectively connected to the steam pipeline and the water storage tank;

[0008] The spray pipe is connected to the water storage tank, and the water storage tank is used to supply water to the spray pipe, and the spray pipe is used to spray the air conditioning system of the production workshop.

[0009] In this way, the liquid water after steam condensation can be reused, which is beneficial to saving water consumption in the water circulation system.

[0010] In one possible implementation, the water circulation system further includes a water supply pipeline, the two ends of which are respectively connected to the water storage tank and an external water source, and the water supply pipeline has a first valve, which is used to control the water supply pipeline to supply water to the water storage tank or stop supplying water;

[0011] The water tank has a first liquid level sensor, which is used to detect the water level of the water tank. When the detection value of the first liquid level sensor is less than a first liquid level threshold, the first valve is opened; when the detection value of the first liquid level sensor is greater than a second liquid level threshold, the first valve is closed, wherein the first liquid level threshold is less than the second liquid level threshold.

[0012] In this way, when the condensed water transported by the condenser pipe to the water storage tank is less, water can be replenished into the water storage tank through the water replenishment pipeline, thereby ensuring the normal operation of the spray pipe.

[0013] In a possible implementation, the water circulation system further includes a drain pipe and a drain valve;

[0014] The drain valve has a first port, a second port, and a third port. The first port is communicated with the condenser pipe, the second port is communicated with the water storage tank, and the third port is communicated with the drain pipe.

[0015] When the humidity in the production workshop is high, the spray pipe requires less water, and there is more water in the water tank, the condensed water in the condenser pipe can be directly discharged. In this case, the first port is connected to the third port, allowing the condensed water in the condenser pipe to be discharged to the sewer through the drain pipe. When the condenser pipe needs to supply water to the water tank, the first port is connected to the second port, thereby connecting the condenser pipe to the drain tank.

[0016] In a possible implementation, the water storage tank further has an overflow port;

[0017] When the water level of the water tank is higher than a third liquid level threshold, the water in the water tank is discharged from the water tank through the overflow port.

[0018] In a possible implementation, the water circulation system further includes an overflow pipe and a water storage tank;

[0019] Both ends of the overflow pipe are communicated with the overflow port and the water storage tank respectively.

[0020] In this way, the water in the water tank can also be used for other purposes, thereby further reducing the water consumption in the production workshop.

[0021] In a possible implementation, the water storage tank is provided with a second liquid level sensor, and the second liquid level sensor is used to detect the water level in the water storage tank;

[0022] The water circulation system also includes a filtration system and a first water pump. The water storage tank is connected to the filtration system. After the detection value of the second liquid level sensor is greater than the fourth liquid level threshold, the first water pump drives the water in the water storage tank to flow to the filtration system.

[0023] In this way, the filtered water can also be used for other purposes, realizing the reuse of condensed water, thereby further reducing the water consumption in the production workshop.

[0024] In one possible implementation, the filtration system includes a water storage tank, a first filter, a concentrated water tank, and a pure water tank;

[0025] Both ends of the water storage tank are connected to the water storage tank and the first filter. The first filter is used to separate the water in the water storage tank into concentrated water and pure water. The first filter has a concentrated water port and a pure water port. The concentrated water port is connected to the concentrated water tank, and the pure water port is connected to the pure water tank. The conductivity of the concentrated water is greater than the conductivity of the pure water.

[0026] Among them, since pure water does not contain other impurities, it can be used for production in the workshop.

[0027] In a possible implementation, the concentrated water tank further has a concentrated water drain pipe;

[0028] The concentrated water drainage pipe is used to discharge the concentrated water to the station to be cleaned in the production workshop.

[0029] In this way, the concentrated water can be reused for the second time, thereby further improving the utilization rate of the condensed water and helping to further reduce the water consumption in the production workshop.

[0030] In a possible implementation, the filtration system further includes a second filter;

[0031] Both ends of the second filter are in communication with the water storage tank and the water storage box, and the second filter is used to filter the water flowing out of the water storage tank into raw water.

[0032] In this way, the impurities in the water entering the water tank can be reduced, thereby speeding up the working efficiency of the first filter.

[0033] In a possible implementation, the second filter is a filter bag with a precision of 10 μm.

[0034] In a second aspect, the present disclosure provides a production workshop, comprising the water circulation system as described in any one of the first aspects.

[0035] The technical solution provided by the present disclosure includes at least the following beneficial effects:

[0036] The present disclosure provides a water circulation system in which, after steam condenses into liquid water in a condenser, it flows to a water storage tank rather than being discharged directly. This allows the water storage tank to supply water to the spray pipes, which in turn use the condensed liquid water to spray the air conditioning system. This allows the condensed liquid water to be reused, thereby reducing water consumption in the production workshop.

[0037] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure. In the drawings:

[0039] Figure 1 is a partial structural diagram of a water circulation system shown in an embodiment of the present disclosure;

[0040] Figure 2 is a partial structural diagram of a water circulation system shown in an embodiment of the present disclosure;

[0041] Figure 3 It is a partial structural diagram of a water circulation system shown in an embodiment of the present disclosure.

[0042] Legend:

[0043] 1. Steam pipeline;

[0044] 1a. Drain pipe;

[0045] 1b. Drain valve;

[0046] 1c, first port;

[0047] 1d, second port;

[0048] 1f, third port;

[0049] 2. Condensation tube;

[0050] 3. Water storage tank;

[0051] 30. Overflow port;

[0052] 4. Spray pipe;

[0053] 5. Water supply pipeline;

[0054] 6. Overflow pipe;

[0055] 7. Water storage tank;

[0056] 8. Filtration system;

[0057] 81. Water storage tank;

[0058] 82. First filter;

[0059] 821, thick water mouth;

[0060] 822, pure water outlet;

[0061] 83. Concentrated water tank;

[0062] 831, drainage pipe;

[0063] 84. Pure water tank;

[0064] 85. Second filter;

[0065] 100. Station to be cleaned;

[0066] 200. Condensate pipe.

[0067] The above drawings illustrate specific embodiments of the present disclosure, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the present disclosure in any way, but rather to illustrate the concepts of the present disclosure to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0068] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0069] The terms used in the embodiments of the present disclosure are intended only to explain the embodiments of the present disclosure and are not intended to limit the present disclosure. Unless otherwise defined, technical or scientific terms used herein should have the same ordinary meaning as those of ordinary skill in the art to which the present disclosure pertains. The terms "first," "second," "third," and similar terms used in the patent specification and claims of the present disclosure do not denote any order, quantity, or importance, but are merely used to distinguish between different components. Similarly, terms such as "a" or "an" do not denote a limitation on quantity, but rather denote the presence of at least one. Terms such as "include" or "comprising" mean that the elements or objects preceding the term "include" or "comprising" include the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0070] In today's society, as businesses are the main drivers of economic activity, water conservation is of paramount importance. Water resources are not inexhaustible, and businesses' high water consumption, if not managed, will exacerbate the water shortage crisis. Saving water can reduce costs and improve economic efficiency. It also demonstrates corporate social responsibility, fosters a positive image, and enhances market competitiveness. In the automotive manufacturing industry, the painting process, as the most water-intensive of the four major manufacturing processes, demands even greater attention for water conservation. The painting process occupies a crucial position among the four major automotive manufacturing processes, and its water consumption is staggering. The painting process accounts for 70% of the total water consumption of the four major automotive manufacturing processes, highlighting its high dependence on water resources. Taking daily water consumption as an example, the average daily water consumption reaches 1,600 tons.

[0071] During the painting process, production workshops (such as spray booths) use an air-conditioning system with top air supply and bottom exhaust. This system requires constant temperature and humidity all year round, and the temperature must be controlled between 22°C and 28°C. The temperature of the spray booth is controlled by using steam and chilled water. After condensation, the steam is discharged through the condenser. According to monitoring, the condenser produces 240 tons of condensed water every day. The humidity of the spray booth needs to be maintained between 50% and 80%. Water spraying is needed to adjust the humidity of the air-conditioning system, while the temperature is adjusted. The water spraying system currently uses tap water for water replenishment, which requires approximately 200-300 tons of tap water per day, which means that the production workshop needs to consume a large amount of water every day.

[0072] Therefore, how to reduce the water consumption in vehicle production workshops is a key issue that needs to be solved.

[0073] In view of the above technical problems, the present disclosure provides a water circulation system. Figure 1 As shown, the water circulation system includes a steam pipe 1, a condenser 2, a water storage tank 3, and a spray pipe 4. Steam is contained in the steam pipe 1. The ends of the condenser 2 are connected to the steam pipe 1 and the water storage tank 3, respectively. The spray pipe 4 is connected to the water storage tank 3, which supplies water to the spray pipe 4, which is used to spray the air conditioning system in the production workshop.

[0074] When the steam in the steam pipe 1 enters the condenser 2, it releases heat, thereby increasing the temperature in the production workshop. The steam is then condensed into liquid water in the condenser 2.

[0075] The water sprayed from the spray pipe 4 may flow into the water storage tank 3 after being sprayed toward the air conditioning system, thereby further improving the utilization rate of water.

[0076] In the technical solution provided by the disclosed embodiments, after steam condenses into liquid water in the condenser tube 2, it is not discharged directly, but flows to the water storage tank 3. This allows the water storage tank 3 to supply water to the spray pipe 4, which in turn uses the condensed liquid water to spray the air conditioning system. This allows the condensed liquid water to be reused, thereby reducing water consumption in the production workshop.

[0077] It is understandable that when the temperature in the production workshop is low, it is not necessary to use more steam to adjust the temperature in the production workshop, so less condensate is discharged from the condenser pipe 2. Therefore, if the spray pipe relies only on condensate to spray the air conditioning system, it may be difficult to ensure that the humidity in the production workshop meets the requirements.

[0078] To this end, in some examples, such as Figure 1 As shown, the water circulation system also includes a water supply pipeline 5, the two ends of which are connected to the water storage tank 3 and the external water source respectively. The water supply pipeline 5 has a first valve, which is used to control the water supply pipeline 5 to supply water to the water storage tank 3 or stop supplying water.

[0079] The water tank 3 has a first liquid level sensor, which is used to detect the water level of the water tank 3. When the detection value of the first liquid level sensor is less than the first liquid level threshold, it indicates that the condensation water discharged by the condenser 2 is less at this time. Therefore, the water supply pipeline 5 is needed to replenish the water tank 3 to ensure that the humidity in the production workshop can meet the requirements, so the first valve is opened.

[0080] When the detection value of the first liquid level sensor is greater than the second liquid level threshold, it indicates that the condenser 2 has discharged a lot of condensed water at this time, and the spray pipe 4 can use the condensed water to spray the air-conditioning system. Therefore, there is no need to replenish water to the water tank 3 through the water replenishment pipeline at this time. Therefore, the first valve is closed at this time, and the first liquid level threshold is less than the second liquid level threshold.

[0081] Among them, the water supply pipeline 5 is connected to the tap water pipeline.

[0082] Exemplarily, the water circulation system further includes a controller and a second water pump. The controller is electrically connected to the first liquid level sensor and the second water pump. The first liquid level sensor transmits the detected value to the controller. The controller is used to control the on and off of the second water pump, thereby controlling the water supply line 5 to supply or stop water to the water storage tank 3. When the detection value of the first liquid level sensor is less than a first liquid level threshold, the controller controls the second water pump to turn on. When the detection value of the first liquid level sensor is greater than the first liquid level threshold, the controller controls the second water pump to turn off.

[0083] It should be noted that when the ambient temperature is low, the temperature of the tap water in the water supply line 5 will also be low. If the tap water is directly supplied to the spray pipe 4 through the water storage tank 3, the temperature of the water sprayed from the spray pipe 4 will be low, thereby lowering the temperature of the production workshop. Because the condensed water in the condenser pipe 2 is obtained by condensing steam, the condensed water is relatively high, which prevents the temperature in the water storage tank 3 from being too low. In this way, the temperature of the water sprayed from the spray pipe 4 will not be too low.

[0084] In some examples, such as Figure 1 As shown, the water circulation system further includes a drain pipe 1a and a drain valve 1b. The drain valve 1b has a first port 1c, a second port 1d, and a third port 1f. The first port 1c is connected to the condenser pipe 2, the second port 1d is connected to the water storage tank 3, and the third port 1f is connected to the drain pipe 1a.

[0085] When the humidity in the production workshop is high, the spray pipe 4 requires less water, and the water in the water tank 3 is high, the condensed water in the condenser pipe 2 can be directly drained. In this case, the first port 1c is connected to the third port 1f, allowing the condensed water in the condenser pipe 2 to be discharged to the sewer through the drain pipe 1a. When the condenser pipe 2 needs to supply water to the water tank 3, the first port 1c is connected to the second port 1d, thereby connecting the condenser pipe 2 to the water tank 3.

[0086] For example, Figure 1 As shown, the third port 1 f and the water storage tank 3 can be communicated with each other through a condensed water pipeline 200 .

[0087] In some examples, such as Figure 1 As shown, the water storage tank 3 further has an overflow port 30 . When the water level of the water storage tank 3 is higher than the second liquid level threshold, the water in the water storage tank 3 is discharged from the water storage tank 3 through the overflow port 30 .

[0088] In some examples, such as Figure 2As shown, the water circulation system also includes an overflow pipe 6 and a water storage tank 7. The two ends of the overflow pipe 6 are connected to the overflow port 30 and the water storage tank 7, respectively. When there is too much water in the water storage tank 3, the water flows through the overflow pipe 6 into the water storage tank 7, thus preventing the water from being directly discharged into the sewer. This allows the water in the water storage tank 7 to be used for other purposes, further reducing water consumption in the production workshop.

[0089] Water quality testing of the water flowing out of water tank 7 revealed a conductivity of 218.5 μs / cm, a chloride ion content of 15.0 mg / L, and a sulfate ion content of 19.7 mg / L, meeting the raw water quality requirements of a pure water system. However, due to the long-term use of the water spray pipe 4, a significant amount of impurities such as rust are present within it. Therefore, the water in water tank 7 needs to be filtered before it can be used for other purposes.

[0090] In some examples, such as Figure 2 As shown, the water tank 7 has a second liquid level sensor for detecting the water level in the water tank 7. The water circulation system also includes a filtration system 8 and a first water pump. The water tank 7 is connected to the filtration system 8. When the detection value of the second liquid level sensor exceeds the fourth liquid level threshold, the first water pump drives the water in the water tank 7 to flow to the filtration system 8.

[0091] In some examples, the water circulation system further includes a three-way valve, with two valves connecting the overflow pipe 6 and the water storage tank 7. The other valve of the three-way valve is used to connect the overflow pipe 6 to the sewer. When the water in the water storage tank 7 is no longer needed, the water in the overflow pipe 6 can be directly discharged to the sewer.

[0092] In order to fully utilize the water in the water storage tank 7, in some examples, such as Figure 2 and Figure 3 As shown, the filtration system 8 includes a water storage tank 81, a first filter 82, a concentrate tank 83, and a pure water tank 84. Both ends of the water storage tank 81 are connected to the water storage tank 7 and the first filter 82. The first filter 82 is used to separate the water in the water storage tank 81 into concentrate and pure water. The first filter 82 has a concentrate inlet 821 and a pure water inlet 822. The concentrate inlet 821 is connected to the concentrate tank 83, and the pure water inlet 822 is connected to the pure water tank 84. The conductivity of the concentrate is greater than that of the pure water.

[0093] Among them, pure water does not contain other impurities and can be used for production in the workshop.

[0094] For example, first filter 82 may include a reverse osmosis membrane, which allows raw water to pass through the membrane under a pressure differential. Water molecules naturally diffuse through the membrane due to the concentration gradient, forming pure water. Impurities such as dissolved solids (salt), organic matter, and microorganisms are retained, forming concentrated water.

[0095] In order to further utilize concentrated water, in some examples, such as Figure 3 As shown, the concentrate tank 83 also has a concentrate drain pipe 831, which is used to discharge the concentrate to the cleaning station 100 in the production workshop. Because the concentrate contains a large amount of inorganic salts and organic matter, it cannot be reused in production. However, the concentrate can be used for cleaning. The cleaning station 100 can be a skid or a pre-treatment surface.

[0096] In some examples, such as Figure 2 As shown, filtration system 8 also includes a second filter 85. Its two ends are connected to water storage tank 7 and water tank 81. Second filter 85 is used to filter water flowing out of water tank 7 into raw water. This reduces impurities in the water entering water tank 81, thereby improving the efficiency of first filter 82.

[0097] For example, the second filter 85 may be a filter bag with a precision of 10 μm, thereby filtering the water into raw water.

[0098] Of course, in other examples, the second filter 85 may also be a filter in other forms, which is not specifically limited in the embodiments of the present disclosure.

[0099] In the water circulation system provided by the embodiment of the present disclosure, liquid water after steam condensation can be supplied to the water tank 3, and then to the spray pipe 4. When the spray pipe 4 and the condensation pipe 2 flow more to the water tank 3, the water in the water tank 3 can enter the water tank 7. When the water level in the water tank 7 is high, the water in the water tank 7 flows through the second filter 85, and then forms raw water and enters the water tank 81. The water in the water tank 81 then enters the second filter 85, so that the second filter 85 filters the raw water into pure water and concentrated water. The pure water then enters the pure water tank 84 and is then used for production. The concentrated water enters the concentrated water tank 83. When the cleaning station 100 needs to be cleaned, the concentrated water in the concentrated water tank 83 is discharged to the cleaning station through the concentrated water drain pipe 831. In this way, the condensed water can be recycled three times.

[0100] The technical solution provided by the disclosed embodiments can collect available water resources, achieve a stepped recycling system, and recycle industrial wastewater three times, maximizing its utilization while reducing wastewater discharge, thereby achieving energy conservation and emission reduction. According to statistics, the water recycling system provided by the disclosed embodiments can save 100,800 tons of tap water and 3,192 tons of steam annually, saving a total of 1,039,100 yuan. It also reduces wastewater discharge by 9,072 tons, thereby achieving energy conservation and emission reduction.

[0101] The embodiment of the present disclosure also provides a production workshop, which includes the above-mentioned water circulation system.

[0102] Among them, the production workshop can be a paint room for painting vehicles.

[0103] In the production workshop provided by the disclosed embodiment, steam from the water circulation system is not discharged directly after condensation in condenser pipe 2, but flows to water storage tank 3. This allows water storage tank 3 to supply water to spray pipe 4, which in turn uses the condensed liquid water to spray the air conditioning system. This allows the condensed liquid water to be reused, thereby reducing water usage in the production workshop and saving operating costs.

[0104] The above descriptions are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A water circulation system, characterized in that: The water circulation system comprises a steam pipeline (1), a condenser (2), a water storage tank (3) and a spray pipe (4); The steam pipeline (1) contains steam, and both ends of the condenser (2) are respectively connected to the steam pipeline (1) and the water storage tank (3); The spray pipe (4) is in communication with the water storage tank (3), the water storage tank (3) is used to supply water to the spray pipe (4), and the spray pipe (4) is used to spray the air conditioning system of the production workshop.

2. The water circulation system according to claim 1, characterized in that: The water circulation system further comprises a water supply pipeline (5), the two ends of which are respectively connected to the water storage tank (3) and an external water source, and the water supply pipeline (5) has a first valve, which is used to control the water supply pipeline (5) to supply water to the water storage tank (3) or stop supplying water; The water storage tank (3) has a first liquid level sensor, which is used to detect the water level of the water storage tank (3); when the detection value of the first liquid level sensor is less than a first liquid level threshold, the first valve is opened; when the detection value of the first liquid level sensor is greater than a second liquid level threshold, the first valve is closed, wherein the first liquid level threshold is less than the second liquid level threshold.

3. The water circulation system according to claim 1, characterized in that: The water circulation system further comprises a drain pipe (1a) and a drain valve (1b); The drain valve (1b) has a first port (1c), a second port (1d) and a third port (1f), wherein the first port (1c) is connected to the condenser pipe (2), the second port (1d) is connected to the water storage tank (3), and the third port (1f) is connected to the drain pipe (1a).

4. The water circulation system according to claim 1, characterized in that: The water storage tank (3) also has an overflow port (30); When the water level of the water storage tank (3) is higher than a third liquid level threshold, the water in the water storage tank (3) is discharged from the water storage tank (3) through the overflow port (30).

5. The water circulation system according to claim 4, characterized in that: The water circulation system further comprises an overflow pipe (6) and a water storage tank (7); Both ends of the overflow pipe (6) are respectively connected to the overflow port (30) and the water storage tank (7).

6. The water circulation system according to claim 5, characterized in that: The water storage tank (7) is provided with a second liquid level sensor, and the second liquid level sensor is used to detect the water level in the water storage tank (7); The water circulation system further comprises a filtration system (8) and a first water pump. The water storage tank (7) is connected to the filtration system (8). When the detection value of the second liquid level sensor is greater than a fourth liquid level threshold, the first water pump drives the water in the water storage tank (7) to flow toward the filtration system (8).

7. The water circulation system according to claim 6, characterized in that: The filtration system (8) includes a water storage tank (81), a first filter (82), a concentrated water tank (83) and a pure water tank (84); The two ends of the water storage tank (81) are connected to the water storage tank (7) and the first filter (82). The first filter (82) is used to separate the water in the water storage tank (81) into concentrated water and pure water. The first filter (82) has a concentrated water port (821) and a pure water port (822). The concentrated water port (821) is connected to the concentrated water tank (83), and the pure water port (822) is connected to the pure water tank (84). The conductivity of the concentrated water is greater than the conductivity of the pure water.

8. The water circulation system according to claim 7, characterized in that: The concentrated water tank (83) further comprises a concentrated water drainage pipe (831); The concentrated water drainage pipe (831) is used to discharge the concentrated water to the workstation (100) to be cleaned in the production workshop.

9. The water circulation system according to claim 7, characterized in that: The filtration system (8) further includes a second filter (85); Both ends of the second filter (85) are in communication with the water storage tank (7) and the water storage box (81), and the second filter (85) is used to filter the water flowing out of the water storage tank (7) into raw water.

10. A production workshop, characterized in that: The production workshop includes the water circulation system according to any one of claims 1 to 9.

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