CN219531778U

CN219531778U - Waste heat utilization device of thermal power boiler

Info

Publication number: CN219531778U
Application number: CN202320081487.5U
Authority: CN
Inventors: 丛锡龙; 王文生; 李彦龙; 袁德权; 孙伟
Original assignee: Huadian Electric Power Research Institute Co Ltd
Current assignee: Huadian Electric Power Research Institute Co Ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-08-15
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses a thermal power boiler waste heat utilization device, which belongs to the technical field of waste heat utilization and comprises a pipe body, wherein the left end and the right end of the pipe body are respectively connected with a pipe box, the left side of the top of the pipe body is provided with a water inlet II, the upper end of the water inlet II is provided with a filtering device, the filtering device consists of a connecting pipe, a filtering box, a slag discharging port, a fixing rod, a first filtering plate, a second filtering plate, an inclined plate and a collecting frame, impurities in waste hot water of a boiler entering a heat exchanger can be filtered, excessive impurities are prevented from entering the heat exchanger, the cleaning period can be reduced, and the service life of the heat exchanger is prolonged; the heat insulation devices are arranged on the outer walls of the front side and the rear side of the pipe body and are composed of the connecting plates, the heat insulation cotton, the heat insulation foam and the rubber and plastic sleeves, so that heat dissipation from the inside of the heat exchanger to the outside can be reduced, heat can be blocked inside the pipe body, and waste heat utilization efficiency is improved.

Description

Waste heat utilization device of thermal power boiler

Technical Field

The utility model belongs to the technical field of waste heat utilization, and particularly relates to a thermal power boiler waste heat utilization device.

Background

The heat exchanger is an equipment for transferring part of heat of hot fluid to cold fluid, and is also called heat exchanger, which plays an important role in chemical industry, petroleum, power, food and other industrial production, and can be used as heater, cooler, condenser, evaporator and reboiler in chemical industry.

Through searching, the patent document with the application number of CN202121270188.3 discloses a tubular heat exchanger, which comprises a heat exchanger body, wherein the heat exchanger body comprises two tube boxes, a shell, a fixed tube plate and heat exchange tubes, and a connecting assembly for connecting the tube boxes and the shell is arranged between the tube boxes and the shell; a clamping assembly used for connecting the relative positions of the fixed tube plate and the shell and a sealing assembly used for sealing the fixed tube plate and the shell are arranged between the fixed tube plate and the shell; the heat exchange tubes penetrate through the fixed tube plate and are vertically and fixedly connected with the fixed tube plate, the heat exchange tubes are arranged in a plurality, and the heat exchange tubes are mutually parallel, so that the heat exchange efficiency is guaranteed. But when waste hot water in the boiler enters into the heat exchanger to carry out waste heat utilization and exchange heat, a lot of scale and residues enter into the heat exchanger, the cleaning is very inconvenient, the service life of the heat exchanger can be shortened, meanwhile, the heat preservation effect of the heat exchanger is poor, a lot of heat is emitted to the outside when the heat exchange is carried out, waste is caused, and the waste heat utilization efficiency is reduced.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide the thermal power boiler waste heat utilization device with reasonable structural design.

The utility model solves the problems by adopting the following technical scheme: the utility model provides a thermal power boiler waste heat utilization equipment, includes the body, its characterized in that: the left end and the right end of the pipe body are respectively connected with a pipe box, a water inlet II is formed in the left side of the top of the pipe body, and a filtering device is arranged at the upper end of the water inlet II; the filter device comprises a filter box, the top at water inlet two is connected to the filter box, the top left side of filter box is provided with the connecting pipe, be provided with first filter and second filter in the filter box, first filter and second filter slope are arranged, and the second filter is located the below of first filter, first filter and second filter are connected with respectively and collect the frame, and collect the frame setting on the inner wall of filter box, the inside bottom of filter box is provided with the swash plate, the outside of filter box is provided with the sediment mouth, the outside bottom four corners department of filter box is connected with the dead lever, the dead lever sets up the top at the body.

Further, the front and back both sides outer wall of body all is provided with heat insulating device, heat insulating device includes the connecting plate, the connecting plate sets up the outer wall at the body, the outer wall of connecting plate is provided with thermal insulation cotton, thermal insulation cotton's outside is provided with thermal insulation foam, thermal insulation foam's outside is provided with the rubber and plastic cover.

Further, the left side and the right side of the outer wall of the bottom of the pipe body are provided with supporting feet.

Further, a first water inlet is formed in the pipe box at the left end of the pipe body, and a first water outlet is formed in the pipe box at the right end of the pipe body.

Further, a second water outlet is formed in the right side of the bottom of the pipe body.

Further, a heat exchange pipe and a baffle plate are arranged in the pipe body; the pipe body is made of stainless steel materials, and paint is sprayed on the surface of the pipe body.

Further, the aperture of the first filter plate is larger than that of the second filter plate, and the inner wall of the bottom of the collecting frame adopts an inclined plane design.

Further, the connecting plate is fixedly connected with the pipe body through welding; the length and the width of the rubber sleeve and the length and the width of the connecting plate are equal.

Compared with the prior art, the utility model has the following advantages and effects:

1. through setting up filter equipment, can get off the inside impurity of boiler abandonment hot water that gets into in the heat exchanger for filtering, avoid too much impurity to enter into the heat exchanger inside, can reduce the cycle of clearance, increase the life of heat exchanger.

2. Through setting up heat insulating device, can reduce the inside heat of heat exchanger and give off outside, can separate the heat inside the body, increase waste heat utilization's efficiency.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the thermal power boiler waste heat utilization device.

Fig. 2 is a schematic structural view of a filtering device according to the present utility model.

Fig. 3 is a schematic view showing the internal structure of the filtering device of the present utility model.

Fig. 4 is a schematic structural view of a heat insulation device according to the present utility model.

In the figure: the water-saving type heat insulation pipe comprises a pipe body 1, a water outlet 2, a water outlet 3, a support leg 4, a water inlet 5, a pipe box 6, a water inlet 7, a filtering device 8, a heat insulation device 9, a connecting pipe 10, a filtering box 11, a slag discharging port 12, a fixing rod 13, a first filtering plate 14, a second filtering plate 15, an inclined plate 16, a collecting frame 17, a connecting plate 18, heat insulation cotton 19, heat insulation foam 20 and a rubber-plastic sleeve 21.

Detailed Description

The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.

Examples

Referring to fig. 1 to 4, in the present embodiment, a thermal power boiler waste heat utilization device includes a pipe body 1, two ends of the pipe body 1 are respectively connected with a pipe box 6, a second water inlet 7 is provided at the left side of the top of the pipe body 1, and a filtering device 8 is provided at the upper end of the second water inlet 7; the filtering device 8 is composed of a connecting pipe 10, a filtering box 11, a slag discharging opening 12, a fixing rod 13, a first filtering plate 14, a second filtering plate 15, an inclined plate 16 and a collecting frame 17, wherein the filtering box 11 is connected to the top end of the second water inlet 7, the connecting pipe 10 is arranged on the left side of the top of the filtering box 11, the first filtering plate 14 and the second filtering plate 15 are arranged in the filtering box 11 in an inclined mode, the second filtering plate 15 is located below the first filtering plate 14, the first filtering plate 14 and the second filtering plate 15 are respectively connected with the collecting frame 17, the collecting frame 17 is arranged on the inner wall of the filtering box 11, the inclined plate 16 is arranged at the bottom of the inside of the filtering box 11, two slag discharging openings 12 are arranged on the outer side of the filtering box 11, the fixing rods 13 are connected to the four corners of the bottom of the outer side of the filtering box 11, and the fixing rods 13 are arranged on the top of the pipe body 1. Before waste heat utilization starts, waste hot water can enter the filter box 11 through the connecting pipe 10, then the first filter plate 14 and the second filter plate 15 filter out impurities in water, then the filtered impurities slide into the collecting frame 17, the filtered waste hot water falls onto the inclined plate 16, then enters the inside of the pipe body 1 through the second water inlet 7 for heat exchange, and after the end, the impurities can be discharged through the slag discharging port 12.

In this embodiment, the outer walls of the front and rear sides of the pipe body 1 are all provided with the heat insulation device 9, the heat insulation device 9 is composed of a connecting plate 18, heat insulation cotton 19, heat insulation foam 20 and a rubber and plastic sleeve 21, the connecting plate 18 is arranged on the outer wall of the pipe body 1, the heat insulation cotton 19 is arranged on the outer wall of the connecting plate 18, the heat insulation foam 20 is arranged on the outer side of the heat insulation cotton 19, and the rubber and plastic sleeve 21 is arranged on the outer side of the heat insulation foam 20. When the heat exchange is started, the heat preservation cotton 19, the heat insulation foam 20 and the rubber and plastic sleeve 21 can well block heat in the pipe body 1, excessive heat is prevented from being emitted, and meanwhile, the rubber and plastic sleeve 21 can prevent hands of workers from being scalded.

In the embodiment, the pipe boxes 6 arranged at the left end and the right end of the pipe body 1 can play a certain role in storage; the left side and the right side of the outer wall of the bottom of the pipe body 1 are provided with the supporting legs 4, and the pipe body 1 can be placed on the ground more firmly through the supporting legs 4.

In this embodiment, a first water inlet 5 is provided on a pipe box 6 at the left end of the pipe body 1, and a first water outlet 2 is provided on the pipe box 6 at the right end of the pipe body 1. The cold water can be discharged from the first water outlet 2 after being heated into hot water by utilizing waste heat.

In the embodiment, a second water outlet 3 is formed in the right side of the bottom of the pipe body 1, and a heat exchange pipe and a baffle plate are arranged in the pipe body 1. The fluid inside the tube body 1 can be ensured to sufficiently exchange heat.

In the embodiment, the pipe body 1 is made of stainless steel, so that the whole bearing performance is better, and the pipe body is more wear-resistant and durable; the surface of the pipe body 1 is sprayed with paint, so that the surface of the pipe body is not easy to rust, and the service life of the pipe body can be prolonged.

In this embodiment, the aperture of the first filter plate 14 is larger than that of the second filter plate 15, so that impurities in the waste hot water can be more comprehensively filtered; the bottom inner wall of the collecting frame 17 adopts an inclined plane design, and impurities can be collected together through the inclined plane, so that the impurities can be conveniently discharged from the slag discharging port 12.

In the embodiment, the connecting plate 18 is fixedly connected with the pipe body 1 through welding, so that the connection is more compact and firm; the rubber and plastic sleeve 21 and the connecting plate 18 have equal length and width, can better play a role in heat insulation and heat preservation on the pipe body 1, and can also prevent the pipe body 1 from overheating and scalding workers.

Working principle: when waste hot water of the thermal power boiler needs to be subjected to waste heat utilization, the pipe body 1 can be placed at a proper position through the supporting legs 4, then the waste hot water can be conveyed into the pipe body 1 through the connecting pipe 10, meanwhile, impurities in the waste hot water can be filtered by the first filter plate 14 and the second filter plate 15, the impurities are reduced and enter the pipe body 1, then after cold water enters the pipe body 1 from the first water inlet 5, heat exchange can be performed through the heat exchange pipe and the baffle plate, the hot water is heated to be discharged from the first water outlet 2, and then the waste hot water is discharged from the second water outlet 3 after heat exchange.

What is not described in detail in this specification is all that is known to those skilled in the art.

Furthermore, the foregoing description of the utility model is provided by way of example only. All equivalent changes in construction, features and principles of the utility model according to the inventive concept are intended to be encompassed by the scope of the utility model. Those skilled in the art may make various modifications, additions and substitutions to the described embodiments without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a thermal power boiler waste heat utilization device, includes body (1), its characterized in that: the left end and the right end of the pipe body (1) are respectively connected with a pipe box (6), a second water inlet (7) is formed in the left side of the top of the pipe body (1), and a filtering device (8) is arranged at the upper end of the second water inlet (7); the utility model provides a filter device (8) is including filtering box (11), the top at water inlet two (7) is connected to filtering box (11), the top of filtering box (11) is provided with connecting pipe (10), be provided with first filter (14) and second filter (15) in filtering box (11), first filter (14) and second filter (15) slope are arranged, and second filter (15) are located the below of first filter (14), first filter (14) and second filter (15) are connected with respectively and collect frame (17), and collect frame (17) set up on the inner wall of filtering box (11), the inside bottom of filtering box (11) is provided with swash plate (16), the outside of filtering box (11) is provided with slag notch (12), the outside bottom of filtering box (11) is connected with dead lever (13), dead lever (13) set up at the top of body (1).

2. The thermal power boiler waste heat utilization device according to claim 1, wherein: the heat insulation device is characterized in that heat insulation devices (9) are arranged on the outer walls of the front side and the rear side of the pipe body (1), each heat insulation device (9) comprises a connecting plate (18), each connecting plate (18) is arranged on the outer wall of the pipe body (1), heat insulation cotton (19) is arranged on the outer wall of each connecting plate (18), heat insulation foam (20) is arranged on the outer side of each heat insulation cotton (19), and rubber and plastic sleeves (21) are arranged on the outer side of each heat insulation foam (20).

3. The thermal power boiler waste heat utilization device according to claim 1, wherein: the outer wall of the bottom of the pipe body (1) is provided with supporting legs (4).

4. The thermal power boiler waste heat utilization device according to claim 1, wherein: a first water inlet (5) is formed in a pipe box (6) at the left end of the pipe body (1), and a first water outlet (2) is formed in the pipe box (6) at the right end of the pipe body (1).

5. The thermal power boiler waste heat utilization device according to claim 1, wherein: the right side of the bottom of the pipe body (1) is provided with a second water outlet (3).

6. The thermal power boiler waste heat utilization device according to claim 1, wherein: the inside of the tube body (1) is provided with a heat exchange tube and a baffle plate; the pipe body (1) is made of stainless steel, and paint is sprayed on the surface of the pipe body (1).

7. The thermal power boiler waste heat utilization device according to claim 1, wherein: the aperture of the first filter plate (14) is larger than that of the second filter plate (15), and the bottom inner wall of the collecting frame (17) adopts an inclined plane design.

8. The thermal power boiler waste heat utilization device according to claim 2, wherein: the connecting plate (18) is fixedly connected with the pipe body (1) through welding; the length and the width of the rubber sleeve (21) are equal to those of the connecting plate (18).