Circulating water supply system

Abstract

The utility model discloses a circulating water supply system, and relates to the technical field of circulating water systems, the circulating water supply system comprises a water tower, a hot water pool and a cold water pool, a standby water supply pipeline is arranged between the water tower and a water pipeline; the hot water pool communicates with the water tower through a hot water pump and is used for supplying water to the water tower when the water level of the water tower is lower than a preset value. The cold water pool and the hot water pool are communicated through a water storage pump and are used for mutually supplying water, a common water supply pipeline is arranged between the cold water pool and the water pipeline, the cold water pool is communicated with the water pipeline through the common water supply pipeline, and a cold water pump is arranged on the common water supply pipeline; the water tower is higher than the hot water pool, the cold water pool and the water using structure on the water using pipeline. Water in the cold water pool is supplied into the water using pipeline through the cold water pump, water with appropriate pressure can be provided for the water using pipeline by adjusting the water outlet pressure of the cold water pump, stable water can be provided for the water using pipeline, and efficient cooling of a water using structure on the water using pipeline to related equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating water systems, in particular to a circulating water supply system. Background Art

[0002] During the industrial production process, some equipment needs to be cooled during operation. Usually, high water towers are used to supply water for equipment cooling. Directly using high water towers to supply water will result in the pipeline water pressure being limited by the high water towers, making regulation difficult. Utility Model Content

[0003] The main purpose of the utility model is to provide a circulating water supply system, aiming at improving the stability of water use.

[0004] In order to achieve the above-mentioned purpose, the circulating water supply system proposed by the utility model comprises:

[0005] A water tower, wherein a backup water supply pipeline is provided between the water tower and the water supply pipeline;

[0006] A hot water pool, the hot water pool is connected to the water tower through a hot water pump, and is used to supply water to the water tower when the water level of the water tower is lower than a preset value;

[0007] and a cold water pool, the cold water pool is connected to the hot water pool via a water storage pump, and is used to supply water to the cold water pool and the hot water pool, a common water supply pipeline is provided between the cold water pool and the water supply pipeline, and the cold water pool is connected to the water supply pipeline via the common water supply pipeline, and a cold water pump is provided on the common water supply pipeline;

[0008] The height of the water tower is higher than that of the hot water pool, the cold water pool and the water use structure on the water use pipeline.

[0009] Optionally, a pressure sensor is provided on the common water supply pipeline for detecting the water pressure of the common water supply pipeline.

[0010] Optionally, the circulating water supply system further comprises a controller, which is connected to the pressure sensor and the cold water pump signal and is used to control the water supply of the cold water pump according to the water pressure P1 of the common water supply pipeline detected by the pressure sensor.

[0011] Optionally, the water supply pressure of the cold water pump is P2, and P1 and P2 satisfy 0KPa≤|P1-P2|≤15KPa.

[0012] Optionally, the backup water supply pipeline is connected to the normal water supply pipeline and then merged into the water supply pipeline. A switch valve is provided on the backup water supply pipeline for supplying water to the water supply pipeline by opening the switch valve when the cold water pump stops working.

[0013] Optionally, the switch valve is a pneumatic gate valve, and the circulating water supply system also includes a controller, which is connected to the pneumatic gate valve, the pressure sensor and the cold water pump signal, and is used to open the pneumatic gate valve to supply water to the water pipeline when the water pressure P1 of the common water supply pipeline is less than 300KPa or the cold water pump is not working.

[0014] Optionally, a return pipe is provided between the water outlet pipe of the water pipe and the cold water tank, and the water pipe is connected to the cold water tank through the return pipe.

[0015] Optionally, a cooling tower is provided on the return water pipeline, and the height of the cooling tower is higher than the height of the cold water pool.

[0016] Optionally, the circulating water supply system further comprises a power generation device, wherein the power generation device is used to supply power to the hot water pump, so as to supply water to the water tower through the hot water pump in case of a power outage or power failure;

[0017] The circulating water supply system further comprises a controller, which is signal-connected to the power generation equipment and the hot water pump;

[0018] The water tower is provided with a liquid level detector, and the controller is connected to the liquid level detector signal;

[0019] The controller is signal-connected to the water storage pump.

[0020] Optionally, the total water level of the water tower is defined as a, the preset low water level is defined as b, and 75%≤b / a≤95% is satisfied;

[0021] And / or, the water use structure on the water pipeline includes a pipeline heat exchanger, the water inlet of the pipeline heat exchanger is connected to the water outlet of the water pipeline, and the water outlet of the pipeline heat exchanger is connected to the water inlet of the return pipeline.

[0022] The circulating water supply system of this scheme includes a water tower, a hot water tank and a cold water tank. A spare water supply pipeline is provided between the water tower and the water pipeline; the hot water tank is connected to the water tower through a hot water pump, which is used to supply water to the water tower when the water level in the water tower is lower than a preset value; the cold water tank is connected to the hot water tank through a water storage pump, which is used to supply water to the cold water tank and the hot water tank, and a common water supply pipeline is provided between the cold water tank and the water pipeline, and the cold water tank is connected to the water pipeline through the common water supply pipeline, and a cold water pump is provided on the common water supply pipeline; the height of the water tower is higher than the water use structure on the hot water tank, the cold water tank and the water pipeline.

[0023] That is, in the present application, a common water supply pipeline is arranged between the cold water tank and the water use pipeline, and a cold water pump is arranged on the common water supply pipeline. The water from the cold water tank is supplied to the water use pipeline through the cold water pump. By adjusting the water outlet pressure of the cold water pump, water with a suitable pressure can be provided to the water use pipeline, which is convenient for regulating the water pressure and is conducive to providing stable water to the water use pipeline, thereby improving the efficient cooling of related equipment by the water use structure on the water use pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 The utility model provides a schematic structural diagram of a circulating water supply system according to an embodiment of the present invention.

[0026] Description of Figure Numbers:

[0027] 10. Water tower; 11. Backup water supply pipeline; 13. Switch valve; 20. Water pipeline; 30. Hot water tank; 31. Hot water pump; 40. Water storage pump; 50. Cold water tank; 51. Cold water pump; 53. Pressure sensor; 60. Normal water supply pipeline; 70. Cooling tower; 80. Return water pipeline.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] The main purpose of the utility model is to provide a circulating water supply system, aiming at improving the stability of water use.

[0033] In order to achieve the above-mentioned purpose, the circulating water supply system proposed in the utility model is as follows: Figure 1 As shown, the circulating water supply system includes a water tower 10, a hot water tank 30 and a cold water tank 50, and a spare water supply pipeline 11 is provided between the water tower 10 and the water pipe 20; the hot water tank 30 is connected to the water tower 10 through a hot water pump 31, which is used to supply water to the water tower 10 when the water level of the water tower 10 is lower than a preset value; the cold water tank 50 is connected to the hot water tank 30 through a water storage pump 40, which is used to supply water to the cold water tank 50 and the hot water tank 30, and a common water supply pipeline 60 is provided between the cold water tank 50 and the water pipe 20, and the cold water tank 50 is connected to the water pipe 20 through the common water supply pipeline 60, and a cold water pump 51 is provided on the common water supply pipeline 60; the height of the water tower 10 is higher than the water use structure on the hot water tank 30, the cold water tank 50 and the water pipe 20.

[0034] It can be understood that the hot water pool 30 is a storage device for storing external hot water. For example, the hot water generated by large equipment during the spray cooling process can be stored in the hot water pool 30; the cold water pool 50 is a storage device for storing cold water. For example, the hot water generated by large equipment during the cooling process can be stored in the cold water pool 50 after cooling.

[0035] The water tower 10 in this solution is generally not used, and the water stored therein is used as a backup water source.

[0036] The water pipe 20 has a water-using structure. It can be understood that the water-using structure is a device that requires water, such as a heat exchanger. Water enters the heat exchanger to exchange heat for the equipment that requires heat exchange.

[0037] Specifically, considering that the water tower 10 directly supplies water to the water pipe 20, there will be a problem that the water pipe pressure is difficult to regulate, and the unstable pipe pressure during water use will affect the cooling efficiency of the water structure on the water pipe 20 for the equipment that needs cooling. If the high-level water tower 10 is always used to supply water to the water pipe 20, the cooling efficiency will be affected for a long time. In order to solve the above technical problems, under normal circumstances, the water of the cold water pool 50 is used to supply water to the water pipe 20. Specifically, a common water supply pipe 60 is provided between the cold water pool 50 and the water pipe 20, and the cold water pool 50 is connected to the water pipe 20 through the common water supply pipe 60. A cold water pump 51 is provided on the common water supply pipe 60. The water of the cold water pool 51 is supplied to the water pipe 20 by the cold water pump 51. By adjusting the water outlet pressure of the cold water pump 51, water with a suitable pressure can be provided to the water pipe 20, which is convenient for regulating the water pressure and is conducive to providing stable water to the water pipe 20, thereby improving the efficient cooling of related equipment by the water structure on the water pipe 20.

[0038] The water tower 10 is used for emergency standby when normal water supply is difficult, for example, normal water supply difficulties include power outages that make the cold water pump 51 unable to supply water to the water pipe 20. It is understandable that the height of the water tower 10 is higher than the hot water pool 30, the cold water pool 50 and the water use structure on the water pipe 20. At this time, the height difference between the water tower 10 and the water use structure generates gravitational potential energy, and the water in the water tower 10 uses the gravitational potential energy to flow into the water use structure.

[0039] In addition, the hot water pool 30 is connected to the water tower 10 through the hot water pump 31, and is used to supply water to the water tower 10 when the water level of the water tower 10 is lower than a preset value. In this way, it is ensured that the water tower 10 stores a suitable amount of water so that the water tower 10 can be activated to supply water in an emergency.

[0040] At the same time, the cold water tank 50 is connected to the hot water tank 30 through the water storage pump 40, so that the cold water tank 50 and the hot water tank 30 can supply water to each other. That is, the cold water tank 50 is used to supply water to the water pipe 20 under normal circumstances, and the hot water tank 30 prepares water in advance to the water tower 10. When one of the cold water tank 50 and the hot water tank 30 is short of water, the other one can be used to replenish water to improve the water supply efficiency.

[0041] In one embodiment, a pressure sensor 53 is provided on the common water supply pipeline 60 for detecting the water pressure of the common water supply pipeline 60 .

[0042] In order to ensure that the water supplied by the cold water tank 50 to the water pipe 20 through the cold water pump 51 is supplied at a constant pressure, a pressure sensor 53 is provided on the common water supply pipe 60 for detecting the water pressure of the common water supply pipe 60. The water supply pressure of the cold water pump 51 is adjusted according to the water pressure of the common water supply pipe 60 to ensure constant pressure water supply. Constant pressure water supply is conducive to stable water supply and improves the cooling efficiency of the water use structure on the water pipe 20.

[0043] In one embodiment, the circulating water supply system further includes a controller, which is signal-connected to the pressure sensor 53 and the cold water pump 51 and is used to control the cold water pump 51 to supply water according to the water pressure P1 of the common water supply pipeline 60 detected by the pressure sensor 53 .

[0044] In order to improve the automation and remote control functions, the circulating water supply system also includes a controller, which is connected to the pressure sensor 53 and the cold water pump 51 signal, and is used to control the cold water pump 51 to supply water according to the water pressure P1 of the common water supply pipeline 60 detected by the pressure sensor 53. That is, the cold water pump 51 has the function of remote start and stop, and the cold water pump 51 adopts a frequency converter to automatically adjust the frequency of the frequency converter according to the water pressure P1 of the common water supply pipeline 60 to achieve constant pressure water supply.

[0045] In one embodiment, the water supply pressure of the cold water pump 51 is P2, and P1 and P2 satisfy 0KPa≤|P1-P2|≤15KPa.

[0046] It can be understood that when the water supply pressure P2 of the cold water pump 51 and the water pressure P1 of the common water supply pipeline 60 satisfy 0KPa≤|P1-P2|≤15KPa, the water supply pressure is relatively stable, which is beneficial to improving the cooling efficiency of the water use structure on the water pipeline 20.

[0047] In one embodiment, the backup water supply pipeline 11 is connected to the normal water supply pipeline 60 and then merged into the water supply pipeline 20. A switch valve 13 is provided on the backup water supply pipeline 11, which is used to supply water to the water supply pipeline 20 by opening the switch valve 13 when the cold water pump 51 stops working.

[0048] It can be understood that in order to save pipelines, the backup water supply pipeline 11 is connected to the normal water supply pipeline 60 and then merged into the water pipeline 20, and in order to control the water supply of the water tower 10, a switch valve 13 is provided on the backup water supply pipeline 11, which is used to supply water to the water pipeline 20 by opening the switch valve 13 when the cold water pump 51 stops working.

[0049] In one embodiment, the switch valve 11 is a pneumatic gate valve, and the circulating water supply system also includes a controller, which is connected to the pneumatic gate valve, the pressure sensor 53 and the cold water pump 51 signal, and is used to open the pneumatic gate valve to supply water to the water pipe 20 when the water pressure P1 of the common water supply pipeline 60 is less than 300KPa or the cold water pump 51 is not working.

[0050] It can be understood that, by connecting the controller with the pneumatic gate valve, the pressure sensor 53 and the cold water pump 51, when the water pressure P1 of the common water supply pipeline 60 is less than 300KPa or when the cold water pump 51 is not working, the pneumatic gate valve is opened to supply water to the water pipeline 20. In this way, the water supply safety is improved, that is, when the cold water pump 51 is abnormal, the water tower 10 supplies water, ensuring production safety and increasing the life of the circulating water pump.

[0051] In one embodiment, a return pipe 80 is provided between the water outlet pipe of the water pipe 20 and the cold water tank 50 , and the water pipe 20 is connected to the cold water tank 50 through the return pipe 80 .

[0052] In order to improve the utilization rate of water, a return pipe 80 is arranged between the outlet pipe of the water pipe 20 and the cold water tank 50, and the water pipe 20 is connected with the cold water tank 50 through the return pipe 80, that is, the outlet pipe of the water pipe 20 is connected with the cold water tank 50 to form the return pipe 80, so that the water passing through the water pipe 20 can eventually return to the cold water tank 50 through the return pipe 80, thereby improving the recycling rate of water.

[0053] In one embodiment, a cooling tower 70 is disposed on the water return pipeline 80 , and the height of the cooling tower 70 is higher than the height of the cold water pool 50 .

[0054] In order to effectively cool the water flowing out of the water outlet pipe of the water supply pipe 20 , a cooling tower 70 is provided on the return water pipe 80 , and the height of the cooling tower 70 is higher than the height of the cold water tank 50 , so that the water returning to the cooling tower 70 can effectively flow into the cold water tank 50 .

[0055] In one embodiment, the circulating water supply system also includes a power generation device, which is used to power the hot water pump 31, and is used to supply water to the water tower 10 through the hot water pump 31 when there is a power outage or power failure; the circulating water supply system also includes a controller, which is connected to the power generation device and the hot water pump 31 by signal; the water tower 10 is provided with a liquid level detector, and the controller is connected to the liquid level detector by signal; the water storage pump 40 is connected to the controller by signal.

[0056] That is, in order to improve the emergency response to power outages, a power generation device is added, and the power generation device is used to supply power to the hot water pump 31, and is used to supply water to the water tower 10 through the hot water pump 31 when there is a power outage or power failure; the controller is connected to the power generation device signal, and when a power failure occurs, such as a power outage or circuit failure, the cold water pump 51 cannot supply water, and the power generation device, such as a diesel generator device, is activated at this time. The power generation device automatically starts under the control of the controller to supply power to the hot water pump 31, so that the hot water pump 31 supplies water to the water tower 10. In this way, the power generation device is automatically started to ensure the safety of water use for the equipment in the event of an abnormal power outage.

[0057] In addition, the controller is connected to the hot water pump 31 by signal, and when the water level of the water tower 10 is at a preset water level, the hot water pump 31 automatically starts to supply water to the water tower 10 .

[0058] In addition, the water tower 10 is provided with a liquid level detector, and the controller is connected to the liquid level detector signal, that is, under normal circumstances, the hot water pump 31 is not turned on. When the liquid level detector of the water tower 10 detects that the water level of the water tower 10 is too low, it will alarm, and the hot water pump 31 will be turned on to replenish water to the water tower 10.

[0059] In addition, the water storage pump 40 is connected to the controller signal so that the water storage pump 40 has an automatic control function.

[0060] In one embodiment, the total water level of the water tower is defined as a, and the preset low water level is b, satisfying 75%≤b / a≤95%; and / or, the water use structure on the water use pipeline 20 includes a pipeline heat exchanger, the water inlet of the pipeline heat exchanger is connected to the water outlet of the water use pipeline 20, and the water outlet of the pipeline heat exchanger is connected to the water inlet of the return water pipeline 80.

[0061] It is understandable that the total water level of the water tower is defined as a, and the preset low water level is b. When the preset low water level b satisfies 75%≤b / a≤95%, it means that water replenishment is needed at this time, and the hot water pump 31 replenishes water for the water tower 10.

[0062] The water-using structure on the water-using pipeline 20 includes a pipeline heat exchanger, the water inlet of the pipeline heat exchanger is connected to the water outlet of the water-using pipeline 20, and the water outlet of the pipeline heat exchanger is connected to the water inlet of the return water pipeline 80. At this time, there is no open outlet on the water-using pipeline 20, and the pressure in the pipeline is maintained at a certain value, that is, the water outlet of the pipeline heat exchanger still has residual pressure at this time. At this time, the water in the water pipeline 20 can be returned to the cooling tower 70 through the residual pressure, which can reduce the use of pumps and achieve the purpose of energy saving and consumption reduction.

[0063] The overall solution of the present application allows the circulating water to be directly supplied to the water pipe 20 through the cold water pump 51, and the water in the water pipe 20 is returned to the cooling tower 70 by utilizing the residual pressure on the water pipe 20. After cooling, the water is directly returned to the cold water tank 50. The high-level water tower 10 is used as a backup water supply method to ensure the stability of the circulating water when the pump and other equipment fail.

[0064] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A circulating water supply system, characterized in that: include: A water tower (10), wherein a backup water supply pipeline (11) is provided between the water tower (10) and the water pipeline (20); A hot water pool (30), the hot water pool (30) being connected to the water tower (10) via a hot water pump (31) and being used to supply water to the water tower (10) when the water level of the water tower (10) is lower than a preset value; and a cold water pool (50), the cold water pool (50) being connected to the hot water pool (30) via a water storage pump (40) for supplying water to the cold water pool (50) and the hot water pool (30), a common water supply pipeline (60) being provided between the cold water pool (50) and the water pipeline (20), and the cold water pool (50) being connected to the water pipeline (20) via the common water supply pipeline (60), and a cold water pump (51) being provided on the common water supply pipeline (60); The water tower (10) is higher than the hot water pool (30), the cold water pool (50) and the water use structure on the water pipeline (20).

2. The circulating water supply system according to claim 1, characterized in that: The common water supply pipeline (60) is provided with a pressure sensor (53) for detecting the water pressure of the common water supply pipeline (60).

3. The circulating water supply system according to claim 2, characterized in that: The circulating water supply system further comprises a controller, which is signal-connected to the pressure sensor (53) and the cold water pump (51) and is used to control the water supply of the cold water pump (51) according to the water pressure P1 of the common water supply pipeline (60) detected by the pressure sensor (53).

4. The circulating water supply system according to claim 3, characterized in that: The water supply pressure of the cold water pump (51) is P2, and P1 and P2 satisfy 0KPa≤|P1-P2|≤15KPa.

5. The circulating water supply system according to claim 4, characterized in that: The standby water supply pipeline (11) is connected to the normal water supply pipeline (60) and then merged into the water supply pipeline (20). The standby water supply pipeline (11) is provided with a switch valve (13) for supplying water to the water supply pipeline (20) by opening the switch valve (13) when the cold water pump (51) stops working.

6. The circulating water supply system according to claim 5, characterized in that: The switch valve (13) is a pneumatic gate valve. The circulating water supply system further comprises a controller. The pneumatic gate valve, the pressure sensor (53) and the cold water pump (51) are connected to the controller by signal, and are used for opening the pneumatic gate valve to supply water to the water supply pipeline (20) when the water pressure P1 of the common water supply pipeline (60) is less than 300 KPa or when the cold water pump (51) is not working.

7. The circulating water supply system according to any one of claims 1 to 6, characterized in that: A return water pipeline (80) is provided between the water outlet pipeline of the water supply pipeline (20) and the cold water tank (50), and the water supply pipeline (20) is connected to the cold water tank (50) through the return water pipeline (80).

8. The circulating water supply system according to claim 7, characterized in that: A cooling tower (70) is provided on the water return pipeline (80), and the height of the cooling tower (70) is higher than the height of the cold water pool (50).

9. The circulating water supply system according to claim 8, characterized in that: The circulating water supply system further comprises a power generation device, the power generation device being used to supply power to the hot water pump (31), and being used to supply water to the water tower (10) via the hot water pump (31) in the event of a power outage or power failure; The circulating water supply system further comprises a controller, wherein the controller is signal-connected to the power generation equipment and the hot water pump (31); The water tower (10) is provided with a liquid level detector, and the controller is connected to the liquid level detector by signal; The controller is signal-connected to the water storage pump (40).

10. The circulating water supply system according to claim 9, characterized in that: Define the total water level of the water tower as a, the preset low water level as b, and satisfy 75%≤b / a≤95%; And / or, the water use structure on the water pipeline (20) comprises a pipeline heat exchanger, the water inlet of the pipeline heat exchanger is connected to the water outlet of the water pipeline (20), and the water outlet of the pipeline heat exchanger is connected to the water inlet of the return water pipeline (80).

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