Water pump unit cooling water circulating water supply system for dry type installation

Abstract

The invention relates to a water pump unit cooling water circulating water supply system for dry type installation, which comprises a water pump unit, a water pump water inlet pipe, a water pump water outlet pipe, a cooling water supply pipe and a cooling water drainage pipe, filtered water is fed into a water pump unit cooling system after being subjected to pressure regulation and flow regulation by utilizing the water outlet pressure of the main pump, and after heat exchange, the heated water is discharged into a water inlet pipe of the water pump through a cooling water discharge pipe and is continuously recycled. Compared with the prior art, the water supply system is simple and reliable, a cooling water pond, a circulating water pump, a cooler and the like do not need to be additionally arranged, the occupied area and engineering investment are saved, and operation and maintenance are more convenient; cooling water is supplied through the water outlet pipe of the water pump unit, flow and pressure of the main pump are fully utilized, and energy and water resources are not consumed additionally.

Description

Technical Field

[0001] This invention relates to the field of pump station engineering technology, and in particular to a cooling water circulation supply system for dry-installed water pump units. Background Technology

[0002] Dry-installed water pump units generate heat during operation, requiring measures to dissipate this heat and ensure safe operation. Common cooling methods for water pump units include air cooling and water cooling. Air cooling removes heat through a built-in fan, while water cooling involves supplying cooling water to the pump unit for heat exchange, with the heat being carried away by the water flow.

[0003] Water-cooled pump units typically employ a separate cooling water tank, circulating water pump, filter, cooler, and associated water supply and drainage valves. This approach requires an additional cooling system, making operation and management more complex and increasing direct investment, operating costs, and floor space requirements. Summary of the Invention

[0004] To address the above problems, this invention provides a cooling water circulation supply system for dry-installed water pump units. This system is simple and reliable, requiring no additional cooling water tank, circulating water pump, or cooler, thus saving floor space and engineering investment, and making operation and maintenance more convenient.

[0005] The technical solution adopted in this invention is: a cooling water circulation supply system for a dry-installed water pump unit, comprising a water pump unit, a water pump inlet pipe, a water pump outlet pipe, a cooling water supply pipe, and a cooling water drain pipe. Raw water enters the water pump unit from the water pump inlet pipe, and after being pressurized by the water pump unit, it enters the water pump outlet pipe. A first filter unit is provided on the water pump outlet pipe. After the water flows through the first filter unit, part of it is sent to the downstream water supply pipeline of the pump station, and part of it enters the cooling water supply pipe. A second filter unit is installed on the cooling water supply pipe. After passing through the second filter unit, the water enters the water pump unit. After heat exchange, the heated water enters the cooling water drain pipe. After passing through the cooling water drain pipe, the water flows back to the water pump inlet pipe, mixes with the raw water, and then re-enters the water pump unit for pressurization, forming a circulating cooling system. After passing through two stages of filters in the water pump outlet pipe, the water connects to the cooling water supply pipe. Using the main pump's outlet pressure, the filtered water is regulated and sent to the water pump unit's cooling system. After heat exchange, the heated water is discharged through the cooling water drain pipe into the water pump inlet pipe, continuously circulating for reuse.

[0006] Preferably, the water pump inlet pipe is equipped with a first electric telescopic butterfly valve.

[0007] Preferably, the water pump outlet pipe is equipped with a first check valve and a second electric telescopic butterfly valve, and the water flows through the check valve, the first filter unit and the second electric telescopic butterfly valve in sequence.

[0008] Preferably, the inlet of the first check valve is equipped with a first pressure gauge and a first pressure sensor.

[0009] Preferably, the cooling water supply pipe is equipped with a manual gate valve, an electric flow regulating valve, a first electric gate valve, and a first expansion joint, and the water flows through the manual gate valve, the second filter unit, the electric flow regulating valve, the electric gate valve, and the first expansion joint in sequence.

[0010] Preferably, the manual gate valve inlet is equipped with a second pressure gauge, a second pressure sensor, and a temperature sensor.

[0011] Preferably, the outlet of the first expansion joint is equipped with a third pressure gauge and a third pressure sensor.

[0012] Preferably, the cooling water drain pipe is equipped with a second expansion joint, a second check valve, and a second electric gate valve. The water flows through the second expansion joint, the second check valve, and the second electric gate valve in sequence in the cooling water drain pipe and then flows back to the water pump inlet pipe.

[0013] Preferably, the first filter unit includes a primary filter and a secondary filter arranged in series.

[0014] Preferably, the second filter unit includes a Y-type filter.

[0015] The beneficial effects achieved by the present invention are as follows: In the water supply system of the present invention, after the water flows through two-stage filters in the water pump outlet pipe, it is connected to the cooling water supply pipe. The filtered water is sent to the water pump unit cooling system by the main pump outlet pressure after pressure regulation and flow regulation. After heat exchange, the heated water is discharged into the water pump inlet pipe through the cooling water drain pipe and continuously recycled.

[0016] Compared with existing technologies, the water supply system of this solution is simple and reliable, eliminating the need for additional cooling water tanks, circulating water pumps, coolers, and other devices, thus saving land area and engineering investment, and making operation and maintenance more convenient. The cooling water is supplied through the outlet pipe of the water pump unit, making full use of the flow and pressure of the main pump without consuming additional energy and water resources. The cooling water supply pipe is equipped with an electric flow and pressure regulating valve, which can automatically adjust the flow and pressure according to the cooling water demand of the water pump unit, making operation simpler and more reliable. Attached Figure Description

[0017] Figure 1 This is a system diagram of the cooling water circulation supply scheme for the water pump unit of the present invention; Among them: 1. Water pump unit; 2. Water pump inlet pipe; 21. First electric telescopic butterfly valve; 3. Water pump outlet pipe; 31. Primary filter; 32. Secondary filter; 33. First check valve; 34. Second electric telescopic butterfly valve; 35. First pressure gauge; 36. First pressure sensor; 4. Cooling water supply pipe; 41. Second filter unit; 42. Manual gate valve; 43. Electric flow regulating and pressure regulating valve; 44. First electric gate valve; 45. First expansion joint; 46. Temperature sensor; 47. Second pressure sensor; 48. Second pressure gauge; 49. Third pressure sensor; 40. Third pressure gauge; 5. Cooling water drain pipe; 51. Second expansion joint; 52. Second check valve; 53. Second electric gate valve. Detailed Implementation

[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1 As shown, the present invention discloses a cooling water circulation supply system for a dry-installed water pump unit, comprising a water pump unit 1, a water pump inlet pipe 2, a water pump outlet pipe 3, a cooling water supply pipe 4, and a cooling water drain pipe 5. Raw water enters the water pump unit 1 from the water pump inlet pipe 2, and after being pressurized by the water pump unit 1, it enters the water pump outlet pipe 3. A first filter unit is provided on the water pump outlet pipe 3. After the water flows through the first filter unit, part of it is sent to the downstream water supply pipeline of the pump station, and part of it enters the cooling water supply pipe 4. A second filter unit 41 is provided on the cooling water supply pipe 4. After the water flows through the second filter unit 41, it enters the water pump unit 1. After heat exchange, the heated water enters the cooling water drain pipe 5. After flowing through the cooling water drain pipe 5, the water flows back to the water pump inlet pipe 2, mixes with the raw water, and then re-enters the water pump unit 1 for pressurization, forming a circulating cooling system.

[0020] In the water supply system of this invention, water flows through a filter in the water pump outlet pipe 3 and then connects to the cooling water supply pipe 4. The filtered water is then regulated and directed to the cooling system of the water pump unit 1 using the outlet pressure of the pump unit 1. After heat exchange, the heated water is discharged into the water pump inlet pipe 2 through the cooling water drain pipe 5, continuously circulating for reuse. Compared with existing technologies, this water supply system is simple and reliable, eliminating the need for additional cooling water tanks, circulating water pumps, coolers, etc., saving floor space and engineering investment, and making operation and maintenance more convenient. The cooling water is supplied using the water pump outlet pipe 3 of the water pump unit 1, fully utilizing the flow and pressure of the main pump without consuming additional energy or water resources. The cooling water supply pipe 4 is equipped with an electric flow and pressure regulating valve 43, which can automatically adjust the flow and pressure according to the cooling water demand of the water pump unit, making operation simpler and more reliable.

[0021] In this embodiment, a first electric telescopic butterfly valve 21 is provided on the water pump inlet pipe 2 to control the size and pressure of the water flow into the water pump unit 1 from the water pump inlet pipe 2.

[0022] In this embodiment, a first check valve 33 and a second electric telescopic butterfly valve 34 are provided on the water pump outlet pipe 3. Within the water pump outlet pipe 3, the water flows sequentially through the check valve 33, the first filter unit, and the second electric telescopic butterfly valve 34. Part of the water is sent to the downstream water supply pipe of the pump station, and part enters the cooling water supply pipe 4. The flow rate and pressure of the water pump unit 1 are fully utilized to send the filtered water to the cooling system of the water pump unit 1 after pressure and flow regulation. The first filter unit includes a primary filter 31 and a secondary filter 32 arranged in series. Within the water pump outlet pipe 3, the water flows through two stages of filtration.

[0023] In this embodiment, the inlet of the first check valve 33 is equipped with a first pressure gauge 35 and a first pressure sensor 36, which are used to monitor the pressure of the water flow in the water pump outlet pipe 3 in real time.

[0024] In this embodiment, the cooling water supply pipe 4 is equipped with a manual gate valve 42, an electric flow regulating valve 43, a first electric gate valve 44, and a first expansion joint 45. Within the cooling water supply pipe 4, water flows sequentially through the manual gate valve 42, the second filter unit 41, the electric flow regulating valve 43, the electric gate valve 44, and the first expansion joint 45. In the cooling system of the water pump unit 1, after heat exchange within the cooling water supply pipe 4, the heated water is discharged through the cooling water drain pipe 5 into the water pump inlet pipe 2 for continuous recycling. The second filter unit 41 is a Y-type filter.

[0025] In this embodiment, the inlet of the manual gate valve 42 is equipped with a second pressure gauge 48, a second pressure sensor 47 and a temperature sensor 46 to monitor the water flow pressure and water flow temperature entering the cooling system of the water pump unit 1 in real time; the outlet of the first expansion joint 45 is equipped with a third pressure gauge 40 and a third pressure sensor 49 to monitor the water flow pressure flowing out of the cooling system of the water pump unit 1 in real time.

[0026] In this embodiment, the cooling water drain pipe 5 is equipped with a second expansion joint 51, a second check valve 52, and a second electric gate valve 53. The water flows through the second expansion joint 51, the second check valve 52, and the second electric gate valve 53 in sequence in the cooling water drain pipe 5 and flows back to the water pump inlet pipe 1.

[0027] After the water pump unit starts, raw water enters the water pump from the water pump inlet pipe 2. After being pressurized by the water pump unit 1, it enters the water pump outlet pipe 3. The water flows through the first check valve 33, the primary filter 31, the secondary filter 32, and the electric telescopic butterfly valve 34 in sequence. Part of the water is sent to the downstream water supply pipeline of the pump station, and part of the water enters the cooling water supply pipe 4. The water entering the cooling water supply pipe 4 flows through the manual gate valve 43, the Y-type filter 41, the electric flow regulating and pressure regulating valve 43, the first electric gate valve 44, and the first expansion joint 45 in sequence before entering the cooling system of the water pump unit. After heat exchange, the heated water enters the cooling water drain pipe 5. The water in the cooling water drain pipe 5 flows through the second expansion joint 51, the second check valve 52, and the second electric gate valve 53 in sequence before entering the water pump inlet pipe 2. It mixes with the raw water and then enters the water pump for pressurization. This cycle of cooling continues.

[0028] During the circulating cooling process, it is necessary to monitor the inlet temperature of the cooling water and the pressure before and after the flow regulating valve. Therefore, upstream of the electric flow regulating valve 43, the cooling water supply pipe 4 is equipped with a temperature sensor 43, a second pressure sensor 47, and a second pressure gauge 48. Downstream of the electric flow regulating valve 43, the cooling water supply pipe 4 is equipped with a third pressure sensor 49 and a third pressure gauge 40. All kinds of sensors and instruments are equipped with gauge stop valves.

[0029] During operation, the flow and pressure after the electric flow regulating valve 43 can be automatically adjusted based on the monitoring data of the water pump unit's operating temperature to ensure that the cooling water volume and pressure meet the requirements for safe operation.

[0030] In this scheme, a total of three-stage filtration devices are provided. Two-stage filters are provided on the water pump outlet pipe 3, and a Y-type filter 41 is provided on the cooling water supply pipe 4. In actual operation, the appropriate number of filtration stages can be selected according to the different water pump cooling water quality requirements.

[0031] The diameters of various pipes, such as the inlet and outlet pipes of the water pump unit 1 and the inlet and outlet pipes of the cooling water, as well as the matching valves, are determined by calculation based on the design flow rate of the water pump unit and the design flow rate of the cooling water.

[0032] It should be noted that the above description of the technical solutions is exemplary, and this specification may be embodied in different forms and should not be construed as limiting it to the technical solutions set forth herein. Rather, providing these descriptions will ensure that the disclosure of this invention is thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the technical solutions of this invention are defined only by the scope of the claims.

[0033] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention should be considered within the protection scope of the present invention.

Claims

1. A water pump unit cooling water circulation water supply system for dry installation, comprising a water pump unit (1), a water pump inlet pipe (2), a water pump outlet pipe (3), a cooling water supply pipe (4) and a cooling water discharge pipe (5), raw water enters the water pump unit (1) from the water pump inlet pipe (2), is pressurized by the water pump unit (1) and then enters the water pump outlet pipe (3); a first filter unit is arranged on the water pump outlet pipe (3), and after the water flows through the first filter unit, part of the water is sent to a water supply pipeline downstream of the pump station, and part of the water enters the cooling water supply pipe (4); a second filter unit (41) is arranged on the cooling water supply pipe (4), and after the water flows through the second filter unit (41), the water enters the water pump unit (1), is heat-exchanged, and then enters the cooling water discharge pipe (5); after the water flows through the cooling water discharge pipe (5), the water returns to the water pump inlet pipe (2), is mixed with raw water and then enters the water pump unit (1) to be pressurized, thereby forming a circulating cooling.

2. The dry mounted water pump package cooling water circulation feed water system of claim 1, wherein: A first electric telescopic butterfly valve (21) is arranged on the water pump inlet pipe (2).

3. The dry mounted water pump package cooling water circulation feed water system of claim 1, wherein: A first check valve (33) and a second electric telescopic butterfly valve (34) are arranged on the water pump outlet pipe (3), and the water flows through the check valve (33), the first filter unit and the second electric telescopic butterfly valve (34) in sequence.

4. The dry mounted water pump package cooling water circulation feed water system of claim 3, wherein: A first pressure gauge (35) and a first pressure sensor (36) are arranged on the water inlet of the first check valve (33).

5. The dry mounted water pump package cooling water circulation feed water system of claim 1, wherein: A manual gate valve (42), an electric flow regulating valve (43), a first electric gate valve (44) and a first telescopic device (45) are arranged on the cooling water supply pipe (4), and the water flows through the manual gate valve (42), the second filter unit (41), the electric flow regulating valve (43), the electric gate valve (44) and the first telescopic device (45) in sequence.

6. The dry mounted water pump package cooling water circulation feed system of claim 5, wherein: A second pressure gauge (48), a second pressure sensor (47) and a temperature sensor (46) are arranged on the water inlet of the manual gate valve (42).

7. The dry mounted water pump package cooling water circulation feed system of claim 5, wherein: A third pressure gauge (40) and a third pressure sensor (49) are arranged on the water outlet of the first telescopic device (45).

8. The dry mounted water pump package cooling water circulation feed water system of claim 1, wherein: A second telescopic device (51), a second check valve (52) and a second electric gate valve (53) are arranged on the cooling water discharge pipe (5), and the water returns to the water pump inlet pipe (1) by flowing through the second telescopic device (51), the second check valve (52) and the second electric gate valve (53) in the cooling water discharge pipe (5) in sequence.

9. The dry mounted water pump package cooling water circulation feed water system of claim 1, wherein: The first filter unit comprises a first-stage filter (31) and a second-stage filter (32) arranged in series.

10. The dry mounted water pump package cooling water circulation feed water system of claim 1, wherein: The second filter unit (41) comprises a Y-type filter.

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