Automatic balancing cooling water system

Abstract

The utility model relates to the technical field of circulating water cooling, and specifically discloses an automatic balancing cooling water system for cooling cooling equipment. The automatic balancing cooling water system includes a cold water pool, a hot water pool, a cold water pump, a hot water pump, a cooling tower, a liquid regulating pump, a one-way valve, an overflow pipe, a controller and a sensor. When the automatic balancing cooling water system is working, when the flow rate of the hot water pump is greater than the flow rate of the cold water pump, after a period of time, the liquid level of the cold water pool will exceed the first overflow hole, and the excess water will flow back to the hot water pool through the overflow pipe, thereby ensuring that the liquid level of the cold water pool is below the first overflow hole and the liquid level of the hot water pool is below the second overflow hole. When the flow rate of the cold water pump is greater than the flow rate of the hot water pump, after a period of time, the sensor measures that the liquid level of the hot water pool exceeds the second overflow hole, and the liquid regulating pump pumps the excess water into the cold water pool. This process does not require human intervention, saving extra manpower and avoiding waste of resources.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating water cooling, in particular to an automatic balancing cooling water system. Background Art

[0002] Marine diesel engine units must complete a series of tests in the diesel engine workshop before leaving the factory, and the cooling water system is one of the systems required for diesel engine testing. However, during the test, due to various reasons (flow resistance in the cooling equipment, inconsistent power of the cold water pump and the hot water pump, inconsistent pipe diameters, and height differences between the cold water pool and the hot water pool, etc.), the flow rate of water flowing into the cold water pool and the hot water pool is inconsistent, which in turn causes the water level of one of the hot water pool and the cold water pool to gradually rise and exceed the designed waterline. In order to ensure the normal and stable operation of the cooling water system, human intervention is required to adjust the water levels of the two pools. This process requires additional manpower and causes a waste of resources.

[0003] Therefore, it is urgent to design an automatic balancing cooling water system that can utilize minimal resources, automatically balance the water level, ensure reliable and effective operation of the test, and save resources. Utility Model Content

[0004] The utility model aims to provide an automatic balancing cooling water system to solve the problem in the related art that the flow rates of water flowing into the cold water pool and the hot water pool are inconsistent due to various reasons, which leads to the water level of one of the hot water pool and the cold water pool gradually rising and exceeding the designed water line, resulting in the cooling water system being unable to work normally.

[0005] The utility model provides an automatic balancing cooling water system for cooling cooling equipment. The automatic balancing cooling water system comprises a cold water pool, a hot water pool, a cold water pump, a hot water pump, a cooling tower, a liquid regulating pump, a one-way valve, an overflow pipe, a controller and a sensor. The cold water pool and the hot water pool are arranged at intervals in the vertical direction. The cold water pool is located above the hot water pool. The liquid inlet of the hot water pump is connected to the hot water pool. The liquid outlet of the hot water pump is connected to the liquid inlet of the cooling tower. The liquid outlet of the cooling tower is connected to the cold water pool. The liquid inlet of the cold water pump is connected to the cold water pool. The liquid outlet of the cold water pump is used to connect to the liquid inlet of the cooling equipment. The liquid outlet of the cooling device is used to communicate with the hot water pool, the cold water pool is provided with a first overflow hole, and the hot water pool is provided with a second overflow hole. One end of the overflow pipe is communicated with the first overflow hole, and the other end of the overflow pipe is communicated with the hot water pool. The liquid inlet of the liquid regulating pump is communicated with the second overflow hole, the liquid outlet of the liquid regulating pump is communicated with the liquid inlet of the one-way valve, and the liquid outlet of the one-way valve is communicated with the cold water pool. The one-way valve only allows water from the hot water pool to flow into the cold water pool. The controller is communicated with the liquid regulating pump and the sensor respectively, and the sensor is used to monitor the water level in the hot water pool.

[0006] As a preferred technical solution for the automatic balancing cooling water system, the sensor is a liquid level sensor, the liquid level sensor is arranged in the hot water tank, and the liquid level sensor and the second overflow hole are located in the same horizontal plane.

[0007] As a preferred technical solution for the automatic balancing cooling water system, the maximum flow rate of the liquid regulating pump is less than the flow rate of the overflow pipe.

[0008] As a preferred technical solution for the automatic balancing cooling water system, the water flow rate of the liquid regulating pump is adjustable;

[0009] It also includes a regulating valve, which is connected in series to the overflow pipe.

[0010] As an optimal technical solution for the automatic balancing cooling water system, it also includes a water supply pipe, one end of which is connected to the hot water tank, and the other end of which is connected to an external tap water pipeline. A valve is provided at one end of the water supply pipe, and the valve is used to control the connection or disconnection between the water supply pipe and the hot water tank.

[0011] As a preferred technical solution for the automatic balancing cooling water system, the valve is a float valve, and the float valve is located in the hot water tank.

[0012] As a preferred technical solution for the automatic balancing cooling water system, a temperature sensor is also included, and the temperature sensor is used to measure the temperature of the cold water pool.

[0013] As a preferred technical solution for the automatic balancing cooling water system, it also includes a first filter, which is connected in series between the cooling device and the hot water pool.

[0014] As a preferred technical solution for the automatic balancing cooling water system, it also includes a second filter, which is connected in series between the cold water pump and the cooling equipment.

[0015] As a preferred technical solution for the automatic balancing cooling water system, the hot water tank is arranged below the ground, and the cold water tank is arranged above the ground.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides an automatic balancing cooling water system for cooling cooling equipment. The automatic balancing cooling water system comprises a cold water pool, a hot water pool, a cold water pump, a hot water pump, a cooling tower, a liquid regulating pump, a one-way valve, an overflow pipe, a controller and a sensor. The cold water pool and the hot water pool are arranged at intervals in a vertical direction. The cold water pool is located above the hot water pool. The liquid inlet of the hot water pump is connected to the hot water pool. The liquid outlet of the hot water pump is connected to the liquid inlet of the cooling tower. The liquid outlet of the cooling tower is connected to the cold water pool. The liquid inlet of the cold water pump is connected to the cold water pool. The liquid outlet of the cold water pump is used to The cooling water tank is connected to the liquid inlet of the cooling device, and the liquid outlet of the cooling device is used to communicate with the hot water tank. The cold water tank is provided with a first overflow hole, and the hot water tank is provided with a second overflow hole. One end of the overflow pipe is connected to the first overflow hole, and the other end of the overflow pipe is connected to the hot water tank. The liquid inlet of the liquid regulating pump is connected to the second overflow hole, and the liquid outlet of the liquid regulating pump is connected to the liquid inlet of the one-way valve. The liquid outlet of the one-way valve is connected to the cold water tank. The one-way valve only allows water from the hot water tank to flow into the cold water tank. The controller is respectively connected to the liquid regulating pump and the sensor for communication. The sensor is used to monitor the water level in the hot water tank. When the automatic balancing cooling water system is working, the cooling tower, the cold water pump, and the hot water pump are turned on. When the flow rate of the hot water pump is greater than the flow rate of the cold water pump, after a period of time, the liquid level of the cold water tank will exceed the first overflow hole. At this time, the excess water will flow back to the hot water tank through the overflow pipe, thereby ensuring that the liquid level of the cold water tank is below the first overflow hole and the liquid level of the hot water tank is below the second overflow hole. When the flow rate of the cold water pump is greater than the flow rate of the hot water pump, after a period of time, the sensor measures that the liquid level of the hot water pool exceeds the second overflow hole. After x seconds, the controller starts the liquid regulating pump to pump excess water into the cold water pool. When the liquid level of the hot water pool returns to below the second overflow hole, the liquid regulating pump is turned off after x seconds. If the liquid regulating pump pumps too much water into the cold water pool, the water in the cold water pool will flow back to the hot water pool through the overflow pipe. A one-way valve is installed between the liquid regulating pump and the cold water pool to prevent the water in the cold water pool from flowing into the hot water pool through the liquid level difference. The above setting can always keep the liquid level of the cold water pool below the first overflow hole and the liquid level of the hot water pool below the second overflow hole, ensuring the normal and stable operation of the automatic balancing cooling water system. At this time, no human intervention is required, which saves extra manpower and avoids waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the automatic balancing cooling water system in the embodiment of the utility model.

[0019] In the figure:

[0020] 100. Cooling equipment;

[0021] 1. Cold water tank; 13. First overflow hole; 2. Hot water tank; 21. Second overflow hole; 3. Cold water pump; 4. Hot water pump; 5. Cooling tower; 6. Liquid regulating pump; 7. One-way valve; 8. Overflow pipe; 9. Controller; 10. Liquid level sensor; 11. First filter; 12. Second filter. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] like Figure 1As shown, this embodiment provides an automatic balancing cooling water system for cooling a cooling device 100, the automatic balancing cooling water system comprises a cold water pool 1, a hot water pool 2, a cold water pump 3, a hot water pump 4, a cooling tower 5, a liquid regulating pump 6, a one-way valve 7, an overflow pipe 8, a controller 9 and a sensor, the cold water pool 1 and the hot water pool 2 are arranged at intervals in the vertical direction, the cold water pool 1 is located above the hot water pool 2, the liquid inlet of the hot water pump 4 is connected to the hot water pool 2, the liquid outlet of the hot water pump 4 is connected to the liquid inlet of the cooling tower 5, the liquid outlet of the cooling tower 5 is connected to the cold water pool 1, the liquid inlet of the cold water pump 3 is connected to the cold water pool 1, and the liquid outlet of the cold water pump 3 is used to communicate with the cold water pool 1. The liquid inlet of the cooling device 100 is connected, and the liquid outlet of the cooling device 100 is used to communicate with the hot water pool 2. The cold water pool 1 is provided with a first overflow hole 13, and the hot water pool 2 is provided with a second overflow hole 21. One end of the overflow pipe 8 is connected with the first overflow hole 13, and the other end of the overflow pipe 8 is connected with the hot water pool 2. The liquid inlet of the liquid regulating pump 6 is connected with the second overflow hole 21, and the liquid outlet of the liquid regulating pump 6 is connected with the liquid inlet of the one-way valve 7. The liquid outlet of the one-way valve 7 is connected with the cold water pool 1. The one-way valve 7 only allows the water of the hot water pool 2 to flow into the cold water pool 1. The controller 9 is respectively connected to the liquid regulating pump 6 and the sensor for communicating with each other, and the sensor is used to monitor the water level in the hot water pool 2. When the automatic balancing cooling water system is working, the cooling tower 5, the cold water pump 3, and the hot water pump 4 are turned on. When the flow rate of the hot water pump 4 is greater than the flow rate of the cold water pump 3, after a period of time, the liquid level of the cold water pool 1 will exceed the first overflow hole 13. At this time, the excess water will flow back to the hot water pool 2 through the overflow pipe 8, thereby ensuring that the liquid level of the cold water pool 1 is below the first overflow hole 13 and the liquid level of the hot water pool 2 is below the second overflow hole 21. When the flow rate of the cold water pump 3 is greater than the flow rate of the hot water pump 4, after a period of time, the sensor measures that the liquid level of the hot water pool 2 exceeds the second overflow hole 21. After x seconds, the controller 9 starts the liquid regulating pump 6 to pump excess water into the cold water pool 1. When the liquid level of the hot water pool 2 returns to below the second overflow hole 21, the liquid regulating pump 6 is turned off after x seconds. If the liquid regulating pump 6 pumps too much water into the cold water pool 1, the water in the cold water pool 1 will flow back to the hot water pool 2 through the overflow pipe 8. A one-way valve 7 is installed between the liquid regulating pump 6 and the cold water pool 1 to prevent the water in the cold water pool 1 from flowing into the hot water pool 2 through the liquid level difference. The above arrangement can always keep the liquid level of the cold water pool 1 below the first overflow hole 13 and the liquid level of the hot water pool 2 below the second overflow hole 21, ensuring the normal and stable operation of the automatic balancing cooling water system. At this time, no human intervention is required, which saves extra manpower and avoids waste of resources.

[0027] Specifically, x seconds can be one of 2 seconds, 4 seconds, 6 seconds, 8 seconds, 10 seconds and 12 seconds. The function of the cooling tower 5 is to cool the water in the hot water pool 2 .

[0028] Optionally, the sensor is a liquid level sensor 10, which is disposed in the hot water pool 2, and the liquid level sensor 10 and the second overflow hole 21 are located in the same horizontal plane. In this embodiment, when the liquid level sensor 10 detects that the liquid level in the hot water pool 2 is flush with the second overflow hole 21, the signal is transmitted to the controller 9, and the controller 9 starts the liquid regulating pump 6 after x seconds. In other embodiments, the sensor may also be a pressure sensor, which is disposed in the second overflow hole 21. When the liquid level in the hot water pool 2 exceeds the second overflow hole 21, the pressure sensor is subjected to the water pressure, and the pressure sensor transmits the signal to the controller 9, and the controller 9 starts the liquid regulating pump 6 after x seconds.

[0029] Optionally, the maximum flow rate of the liquid regulating pump 6 is less than the flow rate of the overflow pipe 8. In this embodiment, the purpose of this setting is to ensure that the liquid level of the cold water pool 1 does not exceed the designed water level.

[0030] Optionally, the water flow rate of the liquid regulating pump 6 is adjustable; the automatic balancing cooling water system further comprises a regulating valve, which is connected in series to the overflow pipe 8. In this embodiment, the liquid regulating pump 6 adjusts the water flow rate, thereby adjusting the water flow rate of the hot water pool 2 entering the cold water pool 1 through the liquid regulating pump 6. The water flow rate of the overflow pipe 8 can be adjusted by the regulating valve.

[0031] Optionally, the automatic balancing cooling water system further includes a water supply pipe, one end of which is connected to the hot water tank 2, and the other end of which is connected to an external tap water pipeline, and a valve is provided at one end of the water supply pipe, and the valve is used to control the connection or disconnection between the water supply pipe and the hot water tank 2. In this embodiment, the automatic balancing cooling water system may have cooling water loss during daily operation, so it is necessary to replenish cooling water in time to ensure the normal operation of the system. The above setting can replenish cooling water by controlling the opening and closing of the valve.

[0032] As for the specific type of valve, the valve is optionally a float valve, and the float valve is located in the hot water tank 2. In this embodiment, when the water level in the hot water tank 2 is lower than the minimum water level, the float valve opens to add water to the hot water tank 2, and when the water level in the hot water tank 2 is higher than the minimum water level, the float valve closes to close the water supply pipe.

[0033] Optionally, the automatic balancing cooling water system further includes a temperature sensor, which is used to measure the temperature of the cold water pool 1. In this embodiment, the temperature sensor is connected to the controller 9 for communication. When the temperature sensor measures that the water temperature in the cold water pool 1 is higher than a preset maximum temperature, the controller 9 prohibits the operation of the liquid regulating pump 6, or enables the liquid regulating pump 6 to pump the water in the hot water pool 2 into the cold water pool 1 at a low flow rate.

[0034] Optionally, the automatic balancing cooling water system further includes a first filter 11, which is connected in series between the cooling device 100 and the hot water tank 2. In this embodiment, since there may be oil or particulate matter in the cooling device 100, the first filter 11 can filter out the oil or particulate matter in the cooling device 100, thereby avoiding contamination of the water in the hot water tank 2.

[0035] Optionally, the automatic balancing cooling water system further includes a second filter 12, which is connected in series between the cold water pump 3 and the cooling device 100. In this embodiment, in daily operation of the automatic balancing cooling water system, there may be oil or particles in the hot water pool 2 and the cold water pool 1. To prevent the oil or particles from entering the cooling device 100, a second filter 12 is provided between the cold water pump 3 and the cooling device 100.

[0036] Optionally, the hot water pool 2 is arranged below the ground, and the cold water pool 1 is arranged above the ground. In this embodiment, a pit that can accommodate the hot water pool 2 is dug in the ground, the hot water pool 2 is arranged in the pit, and the cold water pool 1 is arranged on the ground. On the one hand, the above arrangement can create a height difference between the cold water pool 1 and the hot water pool 2, and then when the liquid level in the cold water pool 1 is higher than the first overflow hole 13, the water in the cold water pool 1 can flow into the hot water pool 2 along the overflow pipe 8. The above arrangement has a low cost. In other embodiments, a bracket can be provided, the cold water pool 1 is provided on the bracket, and the hot water pool 2 is provided on the ground.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An automatic balancing cooling water system for cooling a cooling device (100), characterized in that: The invention comprises a cold water pool (1), a hot water pool (2), a cold water pump (3), a hot water pump (4), a cooling tower (5), a liquid regulating pump (6), a one-way valve (7), an overflow pipe (8), a controller (9) and a sensor. The cold water pool (1) and the hot water pool (2) are arranged at intervals in the vertical direction. The cold water pool (1) is located above the hot water pool (2). The liquid inlet of the hot water pump (4) is connected to the hot water pool (2). The liquid outlet of the hot water pump (4) is connected to the liquid inlet of the cooling tower (5). The liquid outlet of the cooling tower (5) is connected to the cold water pool (1). The liquid inlet of the cold water pump (3) is connected to the cold water pool (1). The liquid outlet of the cold water pump (3) is used to be connected to the liquid inlet of the cooling device (100). The liquid outlet of the cooling device (100) is used to be connected to the liquid outlet of the cooling device (100). The cold water pool (1) is connected to the hot water pool (2), the cold water pool (1) is provided with a first overflow hole (13), the hot water pool (2) is provided with a second overflow hole (21), one end of the overflow pipe (8) is connected to the first overflow hole (13), the other end of the overflow pipe (8) is connected to the hot water pool (2), the liquid inlet of the liquid regulating pump (6) is connected to the second overflow hole (21), the liquid outlet of the liquid regulating pump (6) is connected to the liquid inlet of the one-way valve (7), the liquid outlet of the one-way valve (7) is connected to the cold water pool (1), the one-way valve (7) only allows water from the hot water pool (2) to flow into the cold water pool (1), the controller (9) is respectively connected to the liquid regulating pump (6) and the sensor, and the sensor is used to monitor the water level in the hot water pool (2).

2. The automatic balancing cooling water system according to claim 1, characterized in that: The sensor is a liquid level sensor (10), the liquid level sensor (10) is arranged in the hot water pool (2), and the liquid level sensor (10) and the second overflow hole (21) are located in the same horizontal plane.

3. The automatic balancing cooling water system according to claim 1, characterized in that: The maximum flow rate of the liquid regulating pump (6) is less than the flow rate of the overflow pipe (8).

4. The automatic balancing cooling water system according to claim 1, characterized in that: The water flow rate of the liquid regulating pump (6) is adjustable; It also comprises a regulating valve, which is connected in series to the overflow pipe (8).

5. The automatic balancing cooling water system according to claim 1, characterized in that: It also includes a water supply pipe, one end of which is connected to the hot water pool (2), and the other end of which is connected to an external tap water pipeline. A valve is provided at one end of the water supply pipe, and the valve is used to control the connection or disconnection between the water supply pipe and the hot water pool (2).

6. The automatic balancing cooling water system according to claim 5, characterized in that: The valve is a float valve, and the float valve is located in the hot water pool (2).

7. The automatic balancing cooling water system according to claim 1, characterized in that: It also comprises a temperature sensor, which is used to measure the temperature of the cold water pool (1).

8. The automatic balancing cooling water system according to claim 1, characterized in that: It also comprises a first filter (11), wherein the first filter (11) is connected in series between the cooling device (100) and the hot water pool (2).

9. The automatic balancing cooling water system according to claim 8, characterized in that: It also includes a second filter (12), which is connected in series between the cold water pump (3) and the cooling device (100).

10. The automatic balancing cooling water system according to claim 1, characterized in that: The hot water pool (2) is arranged below the ground, and the cold water pool (1) is arranged above the ground.

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