CN217481605U - Mechanical seal cooling system for medium-high pressure circulating water pump - Google Patents

Abstract

The utility model provides a mechanical seal cooling system for well high pressure circulating water pump, a mechanical seal cooling system for well high pressure circulating water pump includes well high pressure circulating water pump set up mechanical seal structure on the well high pressure circulating water pump set up the cooler device on the mechanical seal structure last the heat transfer portion is reinforceed in the setting of mechanical seal structure. Compared with the prior art, a mechanical seal cooling system for well high pressure circulating water pump, set up on mechanical seal structure and reinforce heat transfer portion, improved the cooling capacity of mechanical seal structure body, reduced mechanical seal structure because of overheated the problem that produces the damaged risk of stress deformation, especially prevented that mechanical seal from overheated production deformation during shutting down.

Description

Mechanical seal cooling system for medium-high pressure circulating water pump

Technical Field

The utility model relates to a water pump seal cooling field particularly, relates to a mechanical seal cooling system for well high pressure circulating water pump.

Background

The high-pressure and medium-pressure circulating water pump is used for pressurizing high-temperature and high-pressure saturated water in a steam drum, then the pressurized saturated water enters a boiler heating surface to absorb heat and returns to the steam drum again, and the high-pressure and medium-pressure circulating water pump runs in a high-temperature and high-pressure working environment.

The medium-pressure circulating water pump usually adopts a certain redundant standby mode, a cooling water inlet main pipe of the medium-high pressure circulating water pump is provided with a filter, and during operation, the pressure of the cooling water inlet main pipe of the medium-high pressure circulating water pump is about 0.2MPa, and the pressure of the cooling water return main pipe of the medium-high pressure circulating water pump is about 0.1 MPa.

The medium-high pressure circulating water pump mainly comprises an impeller, a volute, a driving end mechanical seal, a driving end bearing, a non-driving end mechanical seal and a non-driving end bearing. And the driving end bearing and the non-driving end bearing are used for bearing the weight of the medium-high pressure circulating water pump, and the driving end mechanical seal and the non-driving end mechanical seal are used for sealing the medium in the medium-high pressure circulating water pump to prevent leakage.

Application number CN 201520180587.9's patent among the prior art discloses an energy-efficient hot-water pump mechanical seal cooling device, including hot water circulating water pump and water pump motor, water pump motor and hot water circulating water pump pass through mechanical seal mechanism and be connected, be equipped with hot water output tube and cooling water input tube in mechanical seal structure department, hot water output tube and cooling water input tube be connected with the radiator simultaneously, hot water output tube, radiator, cooling water input tube and mechanical seal structure constitute the circulation water course, wherein, the radiator is the air cooling radiator. Although this patent directly gets into the radiator with the air heat transfer with the hot water in the water pump through hot water output tube and reduces the temperature, and the water after the cooling offers the cooling of water pump mechanical seal through the cooling water input tube, but cooling device cooling capacity is poor, has increased the overheated risk of mechanical seal, has especially increased the pump because there is not external drive power during the outage, and the mechanical seal body lacks the cooling source, has the risk because of overheated production stress deformation breakage.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanical seal cooling system for well high pressure circulating water pump to it is poor to solve among the prior art cooling device cooling capacity, has increased the problem of the overheated risk of mechanical seal.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a mechanical seal cooling system for well high pressure circulating water pump the mechanical seal cooling system for well high pressure circulating water pump includes well high pressure circulating water pump set up mechanical seal structure on the well high pressure circulating water pump set up the cooler device on the mechanical seal structure set up the heat transfer portion of reinforceing on the mechanical seal structure.

A mechanical seal cooling system for well high pressure circulating water pump, set up on mechanical seal structure and reinforce heat transfer portion, improved the cooling capacity of mechanical seal structure body, reduced mechanical seal structure because of overheated problem that produces the damaged risk of stress deformation, especially prevented that mechanical seal from overheated production of production warp during the outage.

Further, the heat exchange enhancement part at least comprises a first heat exchange enhancement structure and a second heat exchange enhancement structure, the mechanical sealing structure comprises a mechanical sealing base, and the first heat exchange enhancement structure is arranged on the outer side of the mechanical sealing base; the second heat exchange strengthening structure is arranged on the inner side of the mechanical seal base.

The arrangement enables heat exchange to be enhanced simultaneously from the outer side and the inner side of the mechanical seal base, further improves the cooling capacity of the mechanical seal structure body, further reduces the risk of stress deformation and damage caused by overheating of the mechanical seal structure, and particularly prevents deformation caused by overheating of the mechanical seal structure during the shutdown period.

Furthermore, the mechanical seal cooling system for the medium-high pressure circulating water pump further comprises a cooling water system, the cooling water system comprises a cooling water inlet main pipe and a cooling water return main pipe, a cooler cooling pipeline is arranged between the cooling water inlet main pipe and the cooler device, and the water outlet end of the cooler device is connected to the cooling water return main pipe.

This setting increases cooler cooling pipeline on mechanical seal structure's cooler device, provides the cooling water for the cooler device on the one hand, has reduced the problem that mechanical seal structure produces the damaged risk of stress deformation because of overheated, and on the other hand is as the cooling water source of the mechanical seal structure of pump during the parking and is equipped with, has reduced the overheated damaged risk of mechanical seal structure of this pump during the parking and is equipped with.

Furthermore, a mechanical seal cooling pipeline system is arranged on the mechanical seal structure, and the water inlet end of the mechanical seal cooling pipeline system is connected to the cooling water return main pipe.

This setting has effectively cooled mechanical seal structure body on the one hand, and on the other hand has reduced cooling water return manifold's pressure, has improved the cooling water of other cooling water users of well high pressure circulating water pump indirectly and has advanced return water pressure end difference.

Further, a first solenoid valve assembly is disposed on the cooler cooling line.

The arrangement is convenient for the mechanical seal cooling system of the medium-high pressure circulating water pump to regulate and control the flow of cooling water on the cooling pipeline of the cooler.

Further, a first temperature instrument assembly is arranged at the water outlet end of the cooler device.

This setting can effectively monitor the temperature of the water of the play water end of cooler device to be convenient for be used for well high pressure circulating water pump's mechanical seal cooling system through first solenoid valve subassembly automatically regulated cooling water flow, ensured this well high pressure circulating water pump's the stability of sealing water temperature.

Furthermore, a first cooling water return viewing mirror assembly is arranged between the water outlet end of the cooler device and the cooling water return main pipe.

This arrangement is used to check whether the cooling water is clear.

Furthermore, a regulating valve device is arranged on the mechanical seal cooling pipeline system.

This setting is convenient for adjust the flow of cooling water on the mechanical seal cooling pipe-line system through governing valve device.

Furthermore, a bearing is arranged on the medium-high pressure circulating water pump, a bearing cooler is arranged on the bearing, a bearing cooling pipeline is arranged between the cooling water inlet main pipe and the bearing cooler, and the water outlet end of the bearing cooler is connected to the cooling water return main pipe.

This arrangement facilitates cooling of the bearing.

Furthermore, a second electromagnetic valve component is arranged on the bearing cooling pipeline, a second temperature instrument component is installed on the bearing, and a second cooling water return sight glass component is installed between the water outlet end of the bearing cooler and the cooling water return main pipe.

This setting is convenient for adjust the flow of the cooling water of bearing cooling pipeline according to second solenoid valve subassembly, second temperature instrument subassembly and second cooling water return sight glass subassembly.

The utility model provides a mechanical seal cooling system for well high pressure circulating water pump, for prior art, a mechanical seal cooling system for well high pressure circulating water pump have following beneficial effect:

1) a mechanical seal cooling system for well high pressure circulating water pump, set up on mechanical seal structure and reinforce heat transfer portion, improved the cooling capacity of mechanical seal structure body, reduced mechanical seal structure because of overheated problem that produces the damaged risk of stress deformation, especially prevented that mechanical seal from overheated production of production warp during the outage.

2) A mechanical seal cooling system for well high pressure circulating water pump, set up cooler cooling pipeline between cooling water inlet manifold and cooler device, for cooling device provides the cooling water on the one hand, reduced mechanical seal structure because of overheated problem that produces the damaged risk of stress deformation, on the other hand has reduced this pump at the mechanical seal structure's during the parking equipment cooling water source as the pump during the parking equipment mechanical seal structure's risk of overheating damage.

3) A mechanical seal cooling system for well high pressure circulating water pump, set up mechanical seal cooling pipe system on mechanical seal structure, mechanical seal cooling pipe system's the end of intaking is connected on cooling water return manifold, the mechanical seal structure body has effectively cooled off on the one hand, on the other hand, because cooling water that cools off mechanical seal structure gets from cooling water return manifold, neither can strive for its cooling water user's cooling water discharge, can reduce cooling water return manifold's pressure simultaneously, the cooling water that has indirectly improved other cooling water users of well high pressure circulating water pump advances the return water pressure end difference.

4) A mechanical seal cooling system for well high pressure circulating water pump, increase electromagnetic control valve, temperature instrument isotructure, can effectively monitor well high pressure circulating water pump's axle temperature, cooler device temperature of water out through temperature instrument to through electromagnetic control valve automatically regulated cooling water flow, ensured the stability of the axle temperature of this pump, cooler device temperature.

Drawings

Fig. 1 is a schematic front sectional view of a mechanical seal cooling system for a medium-high pressure circulating water pump according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a structural diagram of a mechanical seal cooling system for a medium-high pressure circulating water pump according to an embodiment of the present invention from the right.

Description of the reference numerals:

1. a medium-high pressure circulating water pump; 2. a bearing; 21. a drive end bearing; 22. a non-drive end bearing; 221. a second temperature meter; 3. a mechanical seal structure; 31. the driving end is mechanically sealed; 32. a non-drive end mechanical seal; 301. a mechanical seal base; 302. strengthening the heat exchanging part; 3021. a first enhanced heat exchange structure; 3022. a second enhanced heat exchange structure; 303. a static sealing sheet; 304. a movable sealing sheet; 4. a cooler device; 41. a first cooler; 42. a second cooler; 5. a cooling water system; 51. a cooling water inlet main pipe; 52. a cooling water return header pipe; 501. a first bearing cooling line; 502. a second bearing cooling circuit; 503. a first cooler cooling circuit; 504. a second cooler cooling circuit; 6. a collector device; 61. a first collector; 62. a second collector; 71. a first solenoid valve; 72. a second solenoid valve; 73. a third solenoid valve; 74. a fourth solenoid valve; 8. a mechanically sealed cooling piping system; 81. a first mechanically sealed cooling circuit; 82. a second mechanical seal cooling line; 83. a regulator valve device; 831. a first regulating valve; 832. a second regulating valve; 91. a first cooling water return sight glass; 92. a second cooling water return sight glass; 93. a third cooling water return sight glass; 94. and a fourth cooling water return sight glass.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The descriptions of "first," "second," etc. mentioned in the embodiments of the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying that the number of indicated technical features is indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

The embodiment provides a mechanical seal cooling system for a medium-high pressure circulating water pump, as shown in fig. 1 to 3, the mechanical seal cooling system for the medium-high pressure circulating water pump comprises a medium-high pressure circulating water pump 1, a mechanical seal structure 3 is arranged on the medium-high pressure circulating water pump 1, a cooler device 4 is arranged on the mechanical seal structure 3, a heat transfer enhancing part 302 is arranged on the mechanical seal structure 3, and the heat transfer enhancing part 302 is used for heat transfer on the mechanical seal structure 3.

According to the mechanical seal cooling system for the medium-high pressure circulating water pump, the reinforced heat exchanging part 302 is arranged on the mechanical seal structure 3, so that the cooling capacity of the body of the mechanical seal structure 3 is improved, the problem of the risk of stress deformation and damage caused by overheating of the mechanical seal structure 3 is reduced, and particularly, the mechanical seal is prevented from being overheated to deform during the shutdown period.

More specifically, as shown in fig. 1, the mechanical seal structure 3 includes a driving-end mechanical seal 31 and a non-driving-end mechanical seal 32, and the driving-end mechanical seal 31 and the non-driving-end mechanical seal 32 are provided at both ends of the medium-high pressure circulating water pump 1 in the axial direction. Wherein the driving end mechanical seal 31 is arranged at the driving end of the medium-high pressure circulating water pump 1, and the non-driving end mechanical seal 32 is arranged at the non-driving end of the medium-high pressure circulating water pump 1.

More specifically, as shown in fig. 1, a bearing 2 is provided on the medium-high pressure circulating water pump 1, the bearing 2 includes a driving end bearing 21 and a non-driving end bearing 22, and the driving end bearing 21 and the non-driving end bearing 22 are provided at both ends of the medium-high pressure circulating water pump 1 in the axial direction. Wherein the driving end bearing 21 is arranged at the driving end of the middle and high pressure circulating water pump 1, and the non-driving end bearing 22 is arranged at the non-driving end of the middle and high pressure circulating water pump 1.

More specifically, as shown in fig. 1, the cooler device 4 includes a first cooler 41 and a second cooler 42. A first cooler 41 is provided on the drive-end mechanical seal 31, and a second cooler 42 is provided on the non-drive-end mechanical seal 32.

Specifically, the position where the enhanced heat exchanging portion 302 is provided on the mechanical seal structure 3 is not limited. The heat transfer enhancement part 302 is disposed outside and/or inside the mechanical seal structure 3.

Preferably, in the present embodiment, the reinforced heat exchanging portion 302 is disposed outside and inside the mechanical seal structure 3.

This arrangement makes it possible to achieve enhanced heat exchange from both the outside and the inside of the mechanical seal base 301, further improving the cooling capacity of the mechanical seal structure 3 body, further reducing the risk of stress deformation and damage of the mechanical seal structure 3 due to overheating, and in particular preventing deformation of the mechanical seal due to overheating during shutdown.

Specifically, as shown in fig. 2, the enhanced heat exchange portion 302 at least includes a first enhanced heat exchange structure 3021 and a second enhanced heat exchange structure 3022, the mechanical seal structure 3 includes a mechanical seal base 301, and the first enhanced heat exchange structure 3021 is disposed on the outer side of the mechanical seal base 301; the second reinforced heat exchange structure 3022 is disposed inside the mechanical seal base 301.

This arrangement makes it possible to achieve enhanced heat exchange from both the outside and the inside of the mechanical seal base 301, further improving the cooling capacity of the mechanical seal structure 3 body, further reducing the risk of stress deformation and damage of the mechanical seal structure 3 due to overheating, and in particular preventing deformation of the mechanical seal due to overheating during shutdown.

Specifically, the specific form of the enhanced heat exchanging portion 302 is not limited. The heat transfer enhancing portion 302 may be configured as a heat transfer enhancing plate, and the heat transfer enhancing portion 302 may also be configured as a heat transfer enhancing ring.

Preferably, in this embodiment, the enhanced heat exchanging portion 302 is configured as a hollow enhanced heat exchanging ring. This arrangement facilitates the mounting of the reinforced heat exchanging portion 302 on the mechanical seal structure 3.

The first heat transfer enhancement structure 3021 and the second heat transfer enhancement structure 3022 each include at least one heat transfer enhancement ring.

Specifically, as shown in fig. 1, the mechanical seal cooling system for the medium-high pressure circulating water pump further includes a cooling water system 5, the cooling water system 5 includes a cooling water inlet manifold 51 and a cooling water return manifold 52, a cooler cooling pipeline is arranged between the cooling water inlet manifold 51 and the cooler device 4, and a water outlet end of the cooler device 4 is connected to the cooling water return manifold 52.

This setting increases the cooler cooling pipeline on mechanical seal structure 3's cooler device 4, on the one hand provides the cooling water for cooler device 4, has reduced the problem that mechanical seal structure 3 produced the damaged risk of stress deformation because of overheated, and on the other hand is as the cooling water source of mechanical seal structure 3 of pump during the parking as the pump, has reduced the damaged risk of mechanical seal structure 3 overheating during the parking.

Specifically, as shown in fig. 1, the cooling water inlet manifold 51 and the cooling water return manifold 52 are disposed on both sides of the middle-high pressure circulating water pump 1 in the axial direction.

Specifically, as shown in fig. 1, a mechanical seal cooling pipeline system 8 is arranged on the mechanical seal structure 3, and a water inlet end of the mechanical seal cooling pipeline system 8 is connected to the cooling water return main pipe 52.

This setting has effectively cooled mechanical seal structure 3 body on the one hand, on the other hand, because the cooling water that cools off mechanical seal structure 3 is taken from cooling water return house steward 52, neither can contend for its cooling water user's cooling water discharge, can reduce the pressure of cooling water return house steward 52 simultaneously, has improved the cooling water that other cooling water users of well high pressure circulating water pump 1 indirectly and has advanced return water pressure end difference.

As shown in fig. 1, the water outlet end of the mechanical seal cooling pipeline system 8 is poured on the mechanical seal base 301 of the mechanical seal structure 3, and overflows to the external environment after flowing through the enhanced heat exchanging part 302 of the mechanical seal base 301. The mechanical seal cooling pipeline system 8 not only plays a cooling role, but also has a flushing role on the mechanical seal structure 3.

Preferably, a collector device 6 is arranged below the mechanical sealing structure 3, and the collector device 6 is used for collecting the cooling water flowing down from the mechanical sealing base 301. A first collector 61 is provided below the drive end mechanical seal 31 and a second collector 62 is provided below the non-drive end mechanical seal 32. This setting is convenient for the recycle of cooling water.

More specifically, as shown in fig. 1, the mechanical seal cooling pipe system 8 includes a first mechanical seal cooling pipe 81 and a second mechanical seal cooling pipe 82. A first mechanical seal cooling line 81 is provided on the drive-end mechanical seal 31, and a second mechanical seal cooling line 82 is provided on the non-drive-end mechanical seal 32.

Specifically, as shown in fig. 1, a first solenoid valve assembly is provided on the cooler cooling line.

The mechanical seal cooling system for the medium-high pressure circulating water pump is convenient to regulate and control the flow of cooling water on the cooling pipeline of the cooler.

More specifically, as shown in fig. 1, the first solenoid valve assembly includes a third solenoid valve 73 and a fourth solenoid valve 74, the cooler cooling line includes a first cooler cooling line 503 and a second cooler cooling line 504, the third solenoid valve 73 is disposed on the first cooler cooling line 503, and the fourth solenoid valve 74 is disposed on the second cooler cooling line 504.

Specifically, a first temperature instrument assembly is installed at the water outlet end of the cooler device 4.

This setting can effectively monitor the temperature of the water of the play water end of cooler device 4 to be convenient for be used for the mechanical seal cooling system of middle and high pressure circulating water pump through first solenoid valve subassembly automatically regulated cooling water flow, ensured this stability of middle and high pressure circulating water pump 1's sealing water temperature.

More specifically, the first temperature meter assembly includes a third temperature meter (not shown) and a fourth temperature meter (not shown), the third temperature meter is installed at the water outlet end of the first cooler 41, and the fourth temperature meter is installed at the water outlet end of the second cooler 42.

Specifically, a first cooling water return mirror assembly is installed between the water outlet end of the cooler device 4 and the cooling water return main pipe 52.

This arrangement is used to check whether the cooling water is clear.

More specifically, as shown in fig. 1, the first cooling water return view mirror assembly includes a third cooling water return view mirror 93 and a fourth cooling water return view mirror 94, the third cooling water return view mirror 93 is installed between the water outlet end of the first cooler 41 and the cooling water return main pipe 52, and the fourth cooling water return view mirror 94 is installed between the water outlet end of the second cooler 42 and the cooling water return main pipe 52.

Specifically, a regulating valve device 83 is disposed on the mechanical seal cooling pipeline system 8.

This arrangement facilitates the regulation of the flow rate of the cooling water on the mechanical seal cooling pipe system 8 by the regulating valve device 83.

More specifically, as shown in fig. 1, a first regulating valve 831 is provided on the first mechanical seal cooling line 81, and a second regulating valve 832 is provided on the second mechanical seal cooling line 82.

Specifically, a bearing cooler is arranged on the bearing 2, a bearing cooling pipeline is arranged between the cooling water inlet manifold 51 and the bearing cooler, and the water outlet end of the bearing cooler is connected to the cooling water return manifold 52.

This arrangement facilitates cooling of the bearing 2.

More specifically, as shown in fig. 1, a drive end bearing cooler (not shown) is provided on the drive end bearing 21, and a non-drive end bearing cooler (not shown) is provided on the non-drive end bearing 22, and the bearing cooling lines include a first bearing cooling line 501 and a second bearing cooling line 502. A first bearing cooling pipeline 501 is arranged between the cooling water inlet manifold 51 and the drive end bearing cooler; a second bearing cooling line 502 is provided between the cooling water inlet manifold 51 and the non-drive-end bearing cooler. The water outlet ends of the drive end bearing cooler and the non-drive end bearing cooler are connected to the cooling water return main pipe 52.

Specifically, a second electromagnetic valve assembly is arranged on the bearing cooling pipeline, a second temperature instrument assembly is mounted on the bearing 2, and a second cooling water return viewing mirror assembly is mounted between the water outlet end of the bearing cooler and the cooling water return main pipe 52.

This setting is convenient for adjust the flow of the cooling water of bearing cooling pipeline according to second solenoid valve subassembly, second temperature instrument subassembly and second cooling water return sight glass subassembly.

More specifically, as shown in fig. 1, the second solenoid valve assembly includes a first solenoid valve 71 and a second solenoid valve 72, the first solenoid valve 71 is disposed on the first bearing cooling line 501, and the second solenoid valve 72 is disposed on the second bearing cooling line 502. The second temperature meter assembly includes a first temperature meter (not shown) and a second temperature meter 221. A first temperature gauge (not shown) is mounted on the drive-end bearing 21, and as shown in fig. 3, a second temperature gauge 221 is mounted on the non-drive-end bearing 22.

More specifically, as shown in fig. 1, the second cooling water return view mirror assembly includes a first cooling water return view mirror 91 and a second cooling water return view mirror 92, the first cooling water return view mirror 91 is installed between the water outlet end of the drive-end bearing cooler and the cooling water return manifold 52, and the second cooling water return view mirror 92 is installed between the water outlet end of the non-drive-end bearing cooler and the cooling water return manifold 52.

This arrangement facilitates in-situ inspection to see if the cooling water is unobstructed.

More specifically, a certain amount of minimum opening is provided to each of the first, second, third and fourth solenoid valves 71, 72, 73 and 74 to prevent the cooling water from being cut off.

Specifically, as shown in fig. 2, the mechanical seal structure 3 further includes a static seal piece 303 and a dynamic seal piece 304.

For the mechanical seal cooling system for the medium-high pressure circulating water pump, besides the medium-high pressure circulating water pump 1, the bearing 2, the mechanical seal structure 3, and the like, other related components are also included, and since the specific structures and the specific assembly relationships of the related components are the prior art, detailed description is not repeated here.

The mechanical seal cooling system for well high pressure circulating water pump of this embodiment, for prior art, a mechanical seal cooling system for well high pressure circulating water pump have following beneficial effect:

1) according to the mechanical seal cooling system for the medium-high pressure circulating water pump, the reinforced heat exchanging part is arranged on the mechanical seal structure, the cooling capacity of the mechanical seal structure body is improved, the problem that the mechanical seal structure is damaged due to stress deformation caused by overheating is solved, and particularly, the mechanical seal structure is prevented from being deformed due to overheating during the standby period.

2) According to the mechanical seal cooling system for the medium-high pressure circulating water pump, the cooler cooling pipeline is arranged between the cooling water inlet main pipe and the cooler device, on one hand, cooling water is provided for the cooling device, the problem that the mechanical seal structure generates stress deformation damage due to overheating is solved, on the other hand, the mechanical seal structure is used as a cooling water source of the mechanical seal structure of the pump during the standby period, and the risk that the mechanical seal structure of the pump is overheated and damaged during the standby period is reduced.

3) The embodiment a mechanical seal cooling system for middle and high pressure circulating water pump, set up mechanical seal cooling pipeline system on mechanical seal structure, mechanical seal cooling pipeline system's the end of intaking is connected on cooling water return manifold, the mechanical seal structure body has effectively been cooled off on the one hand, on the other hand, because cooling water that cools off mechanical seal structure is got from cooling water return manifold, neither can strive for its cooling water user's cooling water discharge, can reduce the pressure of cooling water return manifold simultaneously, the cooling water that has indirectly improved other cooling water users of middle and high pressure circulating water pump advances the return water pressure end difference.

4) The mechanical seal cooling system for the medium-high pressure circulating water pump is additionally provided with the electromagnetic regulating valve, the temperature instrument and the like, can effectively monitor the shaft temperature of the medium-high pressure circulating water pump and the water outlet temperature of the cooler device through the temperature instrument, and ensures the stability of the shaft temperature and the temperature of the cooler device of the pump through the automatic regulation of the cooling water flow of the electromagnetic regulating valve.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. The utility model provides a mechanical seal cooling system for well high-pressure circulating water pump, a mechanical seal cooling system for well high-pressure circulating water pump includes well high-pressure circulating water pump (1) set up mechanical seal structure (3) on well high-pressure circulating water pump (1) set up cooler device (4) on mechanical seal structure (3), its characterized in that set up on mechanical seal structure (3) and strengthen heat transfer portion (302).

2. The mechanical seal cooling system for the medium-high pressure circulating water pump is characterized in that the heat transfer enhancement part (302) at least comprises a first heat transfer enhancement structure (3021) and a second heat transfer enhancement structure (3022), the mechanical seal structure (3) comprises a mechanical seal base (301), and the first heat transfer enhancement structure (3021) is arranged on the outer side of the mechanical seal base (301); the second enhanced heat exchange structure (3022) is arranged on the inner side of the mechanical seal base (301).

3. The mechanical seal cooling system for the medium-high pressure circulating water pump is characterized by further comprising a cooling water system (5), wherein the cooling water system (5) comprises a cooling water inlet main pipe (51) and a cooling water return main pipe (52), a cooler cooling pipeline is arranged between the cooling water inlet main pipe (51) and the cooler device (4), and the water outlet end of the cooler device (4) is connected to the cooling water return main pipe (52).

4. The mechanical seal cooling system for the medium-high pressure circulating water pump is characterized in that a mechanical seal cooling pipeline system (8) is arranged on the mechanical seal structure (3), and the water inlet end of the mechanical seal cooling pipeline system (8) is connected to the cooling water return manifold (52).

5. The mechanical seal cooling system for the medium-high pressure circulating water pump according to claim 3, wherein a first solenoid valve assembly is provided on the cooler cooling line.

6. A mechanical seal cooling system for medium-high pressure circulating water pumps according to claim 3, characterized in that a first temperature meter assembly is installed at the water outlet end of the cooler device (4).

7. A mechanically sealed cooling system for medium-high pressure circulating water pumps according to claim 3, characterized in that a first cooling water return mirror assembly is installed between the water outlet end of the cooler device (4) and the cooling water return manifold (52).

8. A mechanical seal cooling system for a medium-high pressure circulating water pump according to claim 4, characterized in that a regulating valve device (83) is provided on the mechanical seal cooling pipe system (8).

9. The mechanical seal cooling system for the medium-high pressure circulating water pump is characterized in that a bearing (2) is arranged on the medium-high pressure circulating water pump (1), a bearing cooler is arranged on the bearing (2), a bearing cooling pipeline is arranged between the cooling water inlet manifold (51) and the bearing cooler, and the water outlet end of the bearing cooler is connected to the cooling water return manifold (52).

10. The mechanical seal cooling system for the medium-high pressure circulating water pump is characterized in that a second electromagnetic valve assembly is arranged on a bearing cooling pipeline, a second temperature instrument assembly is installed on the bearing (2), and a second cooling water return sight glass assembly is installed between the water outlet end of the bearing cooler and the cooling water return manifold (52).

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