CN112392716A

CN112392716A - Water pump cooling device for thermal power plant

Info

Publication number: CN112392716A
Application number: CN202011397763.6A
Authority: CN
Inventors: 马彦; 任海燕; 辛爽; 惠保安; 侯洪杰; 梁路; 刘娟; 徐志刚; 黄勇
Original assignee: Yanzhou Coal Mining Co Ltd
Current assignee: Yanzhou Coal Mining Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-02-23
Anticipated expiration: 2040-12-03
Also published as: CN112392716B

Abstract

The invention provides a water pump cooling device for a thermal power plant, which injects cooling water into a pump sleeve, forms a cooling water circulating system through the pump sleeve, a water outlet pipe, a water inlet pipe, a driving box, a heat dissipation box and a heat dissipation water pipe, drives a driving wheel to rotate through a driving motor, and enables the cooling water to flow back into the pump sleeve from the pump sleeve through the water outlet pipe, the driving box, the heat dissipation water pipe and the water inlet pipe in sequence by utilizing the meshing action of a first tooth and a second tooth so as to complete cooling water circulation; in addition, the driving motor drives the cooling fan to rotate so as to realize air cooling and heat dissipation of the water pump. This device can realize cooling to the water pump that the thermal power plant used, has that remote heat gives off, cooling water flow is little, be convenient for keep the temperature of water pump, and easy dismouting, the characteristics of easy transportation.

Description

Water pump cooling device for thermal power plant

Technical Field

The invention belongs to the technical field of industrial equipment, and particularly belongs to a water pump cooling device for a thermal power plant.

Background

The heat supply mode includes two main types of distributed heat supply and centralized heat supply. The heat supply is dispersed on the spot at the user, and only a small boiler (the heat efficiency is about 50%) with low parameter and low heat efficiency can be adopted due to the limitation of the heat supply scale. However, the heat supply of the thermal power plant forms regional centralized heat supply. Because the heat supply scale is large, a large-scale boiler with high parameter and high efficiency (the heat efficiency is more than 85 percent) can be adopted, thereby greatly improving the energy utilization benefit and saving the fuel.

The thermal power plant needs to use the water pump to carry out heat source circulation, and wherein the heat source mainly is hot water, therefore whole water pump works under the state of high temperature for a long time, and does not have cooling equipment, and the spare part of water pump is damaged easily to too high temperature, reduces its durability.

Therefore, a cooling device suitable for a water pump for a thermal power plant is needed.

Disclosure of Invention

The embodiment of the invention provides a cooling device for a water pump for a thermal power plant, which aims to solve the technical problem of part damage caused by long-term operation of the water pump for the thermal power plant in a high-temperature state in the background technology.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the embodiment of the invention provides a cooling device for a water pump for a thermal power plant, which comprises a pump sleeve, wherein the pump sleeve is a closed cavity body and is sleeved outside the water pump, the pump sleeve is communicated with one end of a water outlet pipe and one end of a water inlet pipe, the other end of the water outlet pipe is communicated with a driving box, the outer wall of the driving box is fixedly provided with a driving motor, the output end of the driving motor is fixedly provided with a driving shaft, one end of the driving shaft is fixedly provided with a radiating fan through a coupler, the outer wall of the driving shaft is fixedly provided with a driving wheel, the outer wall of the driving wheel is uniformly provided with a first tooth, the inner cavity of the driving box is transversely inserted with a driven shaft, the outer wall of the driven shaft is fixedly provided with a driven wheel, the outer wall of the driven wheel is uniformly provided with a second tooth, the first tooth is meshed with the second tooth, the first tooth, go up the connecting cylinder with the outlet pipe other end intercommunication, the bottom fixed mounting of drive case has lower connecting cylinder, the bottom of connecting cylinder is connected with the heat dissipation case down, the inner chamber of heat dissipation case is provided with the epicoele and the cavity of resorption of mutual isolation, the outer wall fixed intercommunication of epicoele and cavity of resorption has the heat dissipation water pipe, the side at the drive case is installed to the heat dissipation water pipe, epicoele and lower connecting cylinder intercommunication, the cavity of resorption with the inlet tube other end intercommunication.

Preferably, the outer wall fixed mounting of pump housing has a mounting hole and No. two mounting holes with airtight cavity intercommunication, the interior wall joint of a mounting hole outlet pipe one end, No. two mounting hole inner wall joints inlet tube one end.

Preferably, the outer wall fixed mounting of going up the connecting cylinder has No. three installing ports, No. three installing port inner walls joint the outlet pipe other end.

Preferably, the outer wall fixed mounting of heat dissipation case has No. four installing ports, No. four installing port inner walls joint the inlet tube other end.

Preferably, the outer wall of the pump sleeve is provided with a through hole.

Preferably, the outer wall fixed mounting of drive case has the motor mounting panel, the top fixed mounting of motor mounting panel has driving motor.

Preferably, the heat dissipation water pipes are arranged into a plurality of groups of L-shaped thin water pipes.

Preferably, the bottom inner wall of connecting cylinder evenly is provided with the internal thread down, the top fixed mounting of heat dissipation case has the screw thread mouth, connecting cylinder and screw thread mouth screw-thread fit down.

Based on the embodiment, the embodiment of the invention provides the cooling device for the water pump for the thermal power plant, which is characterized in that cooling water is injected into the pump sleeve, the pump sleeve is sleeved outside the water pump, and then the pump sleeve and the driving box are connected into a whole through the water outlet pipe and the water inlet pipe; the driving wheel is driven to rotate by the driving motor, the first tooth and the second tooth are separated at the upper connecting cylinder by meshing the first tooth and the second tooth, the first tooth and the second tooth are occluded at the lower connecting cylinder, space expansion is formed at the upper connecting cylinder by separation of the two teeth, cooling water in the pump sleeve is sucked into the driving box through the water outlet pipe, the cooling water is conveyed to the lower connecting cylinder through two sides of the driving box, the space formed at the lower connecting cylinder is reduced by occlusion of the two teeth at the lower connecting cylinder, the cooling water at the lower connecting cylinder is pressed into the upper cavity and flows back to the lower cavity through the heat dissipation water pipe, and the cooling water continuously flows back into the pump sleeve through the water inlet pipe, so that the circulating cooling of the cooling water is; drive the radiator fan rotation through driving motor and carry out the forced air cooling heat dissipation to the heat dissipation water pipe, reduce the temperature of rivers in the heat dissipation water pipe, realize the cooling to the water pump. This device realizes remote heat through the length of selecting outlet pipe and inlet tube and gives off to keep the temperature of water pump under the less condition of cooling water yield, can cool off the water pump that the thermal power plant used.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a main view angle of a water pump cooling device for a thermal power plant according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a cooling device of a water pump for a thermal power plant according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an inner cavity of a driving box according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional structural diagram of a water pump cooling device for a thermal power plant according to an embodiment of the present invention.

Description of reference numerals:

1-pump sleeve, 2-through hole, 3-first mounting port, 4-second mounting port, 5-water outlet pipe, 6-water inlet pipe, 7-driving box, 8-heat dissipation water pipe, 9-heat dissipation box, 10-motor mounting plate, 11-driving motor, 12-third mounting port, 13-upper connecting cylinder, 14-lower connecting cylinder, 15-driving shaft, 16-heat dissipation fan, 17-threaded port, 18-internal thread, 19-upper cavity, 20-lower cavity, 21-driving wheel, 22-driven wheel, 23-first tooth, 24-second tooth and 25-fourth mounting port.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic view of a main perspective structure of a cooling device of a water pump for a thermal power plant according to an embodiment of the present invention, fig. 2 is a schematic view of a bottom perspective structure of the cooling device of the water pump for the thermal power plant according to the embodiment of the present invention, fig. 3 is a schematic view of an inner cavity structure of a driving box according to the embodiment of the present invention, and fig. 4 is a schematic view of a cross-sectional structure of the cooling device of the water pump for the thermal power plant according to the embodiment of the present invention. The following describes a water pump cooling device for a thermal power plant according to an embodiment of the present invention in detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, the water pump cooling device for a thermal power plant provided in this embodiment mainly includes a pump housing 1, a water outlet pipe 5, a water inlet pipe 6, a driving box 7, a heat dissipation box 9, and a heat dissipation water pipe 8.

Specifically, pump housing 1 is airtight cavity, suit in the water pump outside, injects the cooling water in pump housing 1 and is used for cooling for the water pump, and the cavity structure of pump housing 1 has increased the area of contact of pump housing 1 with the water pump, and the less cooling water of convenient to use realizes good cooling effect. In order to solve the above problems, the embodiment of the present invention provides a preferred embodiment, in which a through hole 2 is formed in an outer wall of the pump jacket 1, the through hole 2 is communicated with a cavity of the pump jacket 1, and besides gas in the pump jacket 1 can be discharged, cooling water can be injected into the pump jacket 1 from the through hole 2. The through hole 2 is also provided with a screw cap which is opened when exhausting or injecting cooling water.

The pump sleeve 1 is communicated with one end of a water outlet pipe 5 and one end of a water inlet pipe 6, and the other end of the water outlet pipe 5 is communicated with a driving box 7. In addition, the other end of the water inlet pipe 6 is communicated with the heat radiation box 9, and the driving box 7 is communicated with the heat radiation box 9 through a lower connecting cylinder 14. Therefore, the pump sleeve 1 and the driving box 7 are communicated into a whole through the water outlet pipe 5 and the water inlet pipe 6, and the circulation of cooling water can be realized. The cooling water in the pump sleeve 1 can be injected from one end of the water outlet pipe 5 or the water inlet pipe 6. In order to better realize the communication between the water outlet pipe 5, the water inlet pipe 6 and the pump sleeve 1, the embodiment of the invention provides a preferable implementation mode, a first installation port 3 and a second installation port 4 which are communicated with the closed cavity are fixedly installed on the outer wall of the pump sleeve 1, the inner wall of the first installation port 3 is clamped at one end of the water outlet pipe 5, the inner wall of the second installation port 4 is clamped at one end of the water inlet pipe 6, the first installation port 3 and the second installation port 4 are arranged and are clamped, and the installation and the disassembly are convenient.

The outer wall of the driving box 7 is fixedly provided with a driving motor 11, and the driving motor 7 is used for providing power for the circulation of cooling water in the device. In order to facilitate the fixed installation of the driving motor 11 in the driving box 7, the embodiment of the present invention provides a preferred implementation manner, wherein a motor mounting plate 10 is fixedly installed on the outer wall of the driving box 7, and the driving motor 11 is fixedly installed on the top of the motor mounting plate 10.

The output end of the driving motor 11 is fixedly provided with a driving shaft 15, one end of the driving shaft 15 is fixedly provided with a heat radiation fan 16 through a coupler, and the heat radiation fan 16 rotates under the driving of the driving shaft 15 of the driving motor 11 to provide air cooling heat radiation for cooling water. A driving wheel 21 is fixedly arranged on the outer wall of the driving shaft 15, a first tooth 23 is uniformly arranged on the outer wall of the driving wheel 21, a driven shaft is transversely inserted into an inner cavity of the driving box 7, a driven wheel 22 is fixedly arranged on the outer wall of the driven shaft, a second tooth 24 is uniformly arranged on the outer wall of the driven wheel 22, the first tooth 23 is meshed with the second tooth 24, the first tooth 23 and the second tooth 24 are attached to the inner wall of the driving box 7, the driving wheel 21 is driven by the driving motor 11 to rotate, the first tooth 23 and the second tooth 24 are separated at the upper connecting cylinder 13 through the meshing of the first tooth 23 and the second tooth 24, the first tooth 23 and the second tooth 24 are meshed at the lower connecting cylinder 14, a space is formed at the lower connecting cylinder 14 through the separation of the two teeth, so that cooling water in the pump sleeve 1 can be sucked into the driving box 7 through the 5, the space is reduced at the lower connecting cylinder 14 through the meshing of the two teeth, and, that is, the flow of the cooling water in the drive case 7 is realized by the arrangement of the first tooth 23 and the second tooth 24.

The top fixed mounting of drive case 7 has last connecting cylinder 13, goes up connecting cylinder 13 and outlet pipe 5 other end intercommunication, through the setting of last connecting cylinder 13 with outlet pipe 5 and drive case 7 intercommunication. In order to facilitate the installation and the disassembly of the water outlet pipe 5 and the driving box 7, the embodiment of the invention provides a preferable implementation mode, wherein a third installation opening 12 is fixedly installed on the outer wall of the upper connecting cylinder 13, the inner wall of the third installation opening 12 is clamped with the other end of the water outlet pipe 5, and the water outlet pipe 5 is convenient to install and disassemble by adopting a clamping mode.

The bottom of the driving box 7 is fixedly provided with a lower connecting cylinder 14, the bottom of the lower connecting cylinder 14 is connected with a heat dissipation box 9, and the driving box 7 is communicated with the heat dissipation box 9 through the arrangement of the lower connecting cylinder 14.

An upper cavity 19 and a lower cavity 20 which are mutually isolated are arranged in an inner cavity of the heat dissipation box 9, heat dissipation water pipes 8 are fixedly communicated with the outer walls of the upper cavity 19 and the lower cavity 20, the heat dissipation water pipes 8 are arranged on the side of the driving box 7, the upper cavity 19 is communicated with the lower connecting cylinder 14, and the lower cavity 20 is communicated with the other end of the water inlet pipe 6. The cooling water at the lower connecting cylinder 14 is pressurized out and enters the upper chamber 19 communicated with the upper connecting cylinder, and then enters the heat dissipation water pipe 8, flows back to the lower chamber 20 after passing through the heat dissipation pipe 8, and then enters the water inlet pipe 6 communicated with the lower chamber 20. The radiating pipe 8 is installed at the side of the driving case 7 so that the radiating fan 16 can directly wind-cool and radiate heat to the radiating pipe 8. The heat dissipation pipe 8 accelerates heat dissipation mainly by increasing the heat dissipation area, so the embodiment of the present invention provides a preferable implementation manner, in which the heat dissipation water pipe 8 is set as a plurality of groups of L-shaped thin water pipes, so that the heat dissipation area of the heat dissipation water pipe 8 is increased. In addition, in order to facilitate the installation and the disassembly of the water inlet pipe 6 and the heat dissipation box 9, the embodiment of the invention provides another preferable implementation mode, the outer wall of the heat dissipation box 9 is fixedly provided with a fourth installation opening 25, the inner wall of the fourth installation opening 25 is clamped with the other end of the water inlet pipe 6, and the clamping mode is adopted to facilitate the installation and the disassembly of the water inlet pipe 6. In order to facilitate the disassembly, assembly and maintenance of the device, the inner wall of the bottom of the lower connecting cylinder 14 is uniformly provided with internal threads 18, the top of the heat dissipation box 9 is fixedly provided with a threaded opening 17, and the lower connecting cylinder 14 is in threaded fit with the threaded opening 17, so that the heat dissipation box 9 and the driving box 7 are conveniently disassembled, assembled and maintained.

The working process is as follows: filling the cooling device with cooling water through the water outlet pipe 5 or the water inlet pipe 6, starting the driving motor 11, enabling the driving motor 11 to drive the driving wheel 21 to rotate, enabling the first tooth 23 and the second tooth 24 to be separated at the upper connecting cylinder 13 through meshing of the first tooth 23 and the second tooth 24, enabling the first tooth 23 and the second tooth 24 to be meshed at the lower connecting cylinder 14, enabling a space at the upper connecting cylinder 13 to be expanded through separation of the two teeth, sucking the cooling water in the pump sleeve 1 into the driving box 7 through the water outlet pipe 5, transporting the cooling water to the lower connecting cylinder 14 through two sides of the driving box 7, enabling the space at the lower connecting cylinder 14 to be reduced through meshing of the two teeth at the lower connecting cylinder 14, pressing the cooling water at the lower connecting cylinder 14 into the upper cavity 19, flowing back into the lower cavity 20 through the heat dissipation water pipe 8, and continuing flowing back into the pump sleeve; meanwhile, the driving motor 11 also drives the heat dissipation fan 16 to rotate, the heat dissipation fan 16 carries out air cooling heat dissipation on the heat dissipation water pipe 8, the temperature of water flow in the heat dissipation water pipe 8 is reduced, and cooling of the water pump is completed.

The embodiments in this specification are described in a progressive manner. The same and similar parts among the various embodiments can be mutually referred, and each embodiment focuses on the differences from the other embodiments.

It is noted that, unless specified or limited otherwise, in the description herein, reference to the description of the terms "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The terms "connected" and "connecting" are used broadly, and may be, for example, mechanical or electrical connection, or communication between two elements, direct connection, or indirect connection through an intermediate medium, and those skilled in the relevant art can understand the specific meaning of the terms according to specific situations. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or device comprising the element. Relational terms such as the terms first, second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. The utility model provides a water pump cooling device for thermal power plant, the device includes pump jacket (1), its characterized in that, pump jacket (1) is airtight cavity, suit in the water pump outside, pump jacket (1) intercommunication has outlet pipe (5) and inlet tube (6) one end, the other end intercommunication of outlet pipe (5) has drive case (7), the outer wall fixed mounting of drive case (7) has driving motor (11), the output fixed mounting of driving motor (11) has driving shaft (15), the one end of driving shaft (15) is through shaft coupling fixed mounting radiator fan (16), the outer wall fixed mounting of driving shaft (15) has action wheel (21), the outer wall of action wheel (21) evenly is provided with one number tooth (23), the inner chamber of drive case (7) transversely pegs graft and has the driven shaft, the outer wall fixed mounting of driven shaft has from driving wheel (22), the outer wall of follow driving wheel (22) evenly is provided with No. two teeth (24), No. one tooth (23) and No. two tooth (24) meshing, No. one tooth (23) and No. two tooth (24) and the laminating of drive case (7) inner wall, the top fixed mounting of drive case (7) has last connecting cylinder (13), go up connecting cylinder (13) and outlet pipe (5) other end intercommunication, the bottom fixed mounting of drive case (7) has lower connecting cylinder (14), the bottom of lower connecting cylinder (14) is connected with heat dissipation case (9), the inner chamber of heat dissipation case (9) is provided with upper chamber (19) and lower chamber (20) of mutual isolation, the outer wall fixed intercommunication of upper chamber (19) and lower chamber (20) has heat dissipation water pipe (8), heat dissipation water pipe (8) are installed in the side of drive case (7), upper chamber (19) and lower connecting cylinder (14) intercommunication, the lower cavity (20) is communicated with the other end of the water inlet pipe (6).

2. The cooling device for the water pump of the thermal power plant according to claim 1, wherein a first mounting port (3) and a second mounting port (4) which are communicated with the closed cavity are fixedly mounted on the outer wall of the pump sleeve (1), the inner wall of the first mounting port (3) is clamped with one end of the water outlet pipe (5), and the inner wall of the second mounting port (4) is clamped with one end of the water inlet pipe (6).

3. The cooling device of the water pump for the thermal power plant according to claim 1, wherein a third mounting port (12) is fixedly mounted on the outer wall of the upper connecting cylinder (13), and the inner wall of the third mounting port (12) is clamped with the other end of the water outlet pipe (5).

4. The cooling device of the water pump for the thermal power plant according to claim 1, wherein a fourth installation opening (25) is fixedly installed on the outer wall of the heat dissipation box (9), and the inner wall of the fourth installation opening (25) is clamped with the other end of the water inlet pipe (6).

5. The cooling device of the water pump for the thermal power plant according to claim 1, wherein the outer wall of the pump sleeve (1) is provided with a through hole (2).

6. The cooling device of the water pump for the thermal power plant according to claim 1, wherein a motor mounting plate (10) is fixedly mounted on the outer wall of the driving box (7), and a driving motor (11) is fixedly mounted on the top of the motor mounting plate (10).

7. The cooling device of the water pump for the thermal power plant according to claim 1, wherein the heat dissipation water pipes (8) are arranged into a plurality of groups of L-shaped thin water pipes.

8. The cooling device of the water pump for the thermal power plant according to claim 1, wherein the inner wall of the bottom of the lower connecting cylinder (14) is uniformly provided with internal threads (18), the top of the heat dissipation box (9) is fixedly provided with a threaded opening (17), and the lower connecting cylinder (14) is in threaded fit with the threaded opening (17).