CN212567843U

CN212567843U - Leakage detection device for tubular heat exchanger

Info

Publication number: CN212567843U
Application number: CN202120075032.3U
Authority: CN
Inventors: 王康; 李安国; 于智州; 刘志刚; 李涛; 陈克安; 郭庆忠; 赵建生; 石金鑫; 王岗; 孙雁; 徐琳; 王春燕
Original assignee: Huadian Weifang Power Generation Co Ltd
Current assignee: Huadian Weifang Power Generation Co Ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-02-19
Anticipated expiration: 2031-01-13

Abstract

The utility model relates to a tubular heat exchanger leak hunting device, including fixing base, U-shaped glass pipe and latex hose. The fixing seat comprises a base and two fixed vertical plates, and a fixed clamping plate and a movable clamping plate are arranged between the two fixed vertical plates. The fixed clamping plate is fixed on the fixed vertical plate adjacent to the fixed clamping plate, and the movable clamping plate is provided with an adjusting device. The U-shaped glass tube comprises two vertical tubes and a bent tube at the bottom, the upper ends of the two vertical tubes are open, the U-shaped glass tube is vertically placed on the fixed seat, the U-shaped glass tube is clamped or loosened by the fixed clamp plate and the movable clamp plate through the adjusting device, and one end of the latex hose is connected to the upper end opening of any vertical tube. The utility model discloses simple structure, convenient operation need not to open the end cover at heat exchanger both ends again can be convenient leak hunting, labour saving and time saving to the heat exchanger.

Description

Leakage detection device for tubular heat exchanger

Technical Field

The utility model relates to an overhaul the instrument field, specific tubular heat exchanger leak hunting device that says so.

Background

At present, when a power plant tubular heat exchanger is used for detecting leakage, end covers on two sides of the heat exchanger need to be opened, and after the end covers are pressurized to a certain pressure through a pressurizing door, soapy water is coated on the position of a tube plate of the heat exchanger for detecting the leakage. The workload of disassembling the end cover is large, and certain difficulty is caused to the leakage detection work.

Disclosure of Invention

To above technical problem, the utility model discloses a simple structure, convenient operation need not to open the end cover at heat exchanger both ends again can be convenient carry out the tubular heat exchanger leak hunting device of hunting leak to the heat exchanger.

The utility model relates to a tubular heat exchanger leak hunting device, including fixing base, U-shaped glass pipe and latex hose. The fixing base comprises a horizontally placed plate-shaped base and two fixing vertical plates symmetrically arranged above the base, and a fixing clamp plate and a movable clamp plate are arranged between the two fixing vertical plates. The fixed clamping plate is fixed on the fixed vertical plate adjacent to the fixed clamping plate, and the movable clamping plate is provided with an adjusting device for adjusting the distance between the fixed clamping plate and the movable clamping plate. The U-shaped glass tube comprises two vertical tubes and a bent tube at the bottom, the upper ends of the two vertical tubes are both open, and one end of the latex hose is connected to the upper end opening of any one vertical tube. The U-shaped glass tube is vertically placed on the fixed seat, the movable clamping plate is moved in the direction of the U-shaped glass tube through the adjusting device, so that the U-shaped glass tube is clamped by the fixed clamping plate and the movable clamping plate, and the movable clamping plate is moved in the direction of the U-shaped glass tube through the adjusting device, so that the U-shaped glass tube is loosened by the fixed clamping plate and the movable clamping plate.

Furthermore, scales are arranged on the two vertical pipes.

Furthermore, a color floating ball is arranged in each of the two vertical pipes, the color floating balls can move up and down in the vertical pipes, and the inner diameter of the bent pipe is smaller than that of the color floating balls.

Furthermore, the adjusting device comprises a bolt, the tail end of the bolt is fixedly connected to the middle position of one side, far away from the U-shaped glass tube, of the movable clamping plate, a threaded hole matched with the bolt is formed in the fixed vertical plate close to the movable clamping plate, the bolt penetrates through the threaded hole, and the head of the bolt is located on one side, far away from the U-shaped glass tube, of the fixed vertical plate.

Furthermore, rubber pads are fixedly arranged on one sides, close to the U-shaped glass tubes, of the fixed clamping plates and the movable clamping plates.

Furthermore, the lower parts of the two vertical pipes are provided with positioning bosses which are positioned at the same height, and the lower surfaces of the positioning bosses lean against the upper end surfaces of the fixed clamping plate or the movable clamping plate, so that the U-shaped glass tube is vertically placed on the fixed seat.

The utility model has the advantages that: the utility model discloses simple structure, convenient operation need not to open the end cover at heat exchanger both ends again can be convenient leak hunting, labour saving and time saving to the heat exchanger.

Drawings

The invention will be further explained with reference to the accompanying drawings, which are simplified schematic drawings and which illustrate, by way of illustration only, the basic structure of the invention and do not constitute an undue limitation on the invention:

FIG. 1 is a schematic view of the present invention when connected to a heat exchanger;

FIG. 2 is a left side view of the present invention of FIG. 1 without the inclusion of a latex hose;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic view of the stationary clamping plate and the movable clamping plate of FIG. 3 when the U-shaped glass tube is not clamped;

FIG. 5 is a schematic view of the U-shaped glass tube of FIG. 1;

in the figure: 101. the water inlet pipe comprises a water inlet pipe body, 102, a water outlet pipe body, 103, an outlet valve body, 104, an inlet valve body, 105, an end cover, 106, a pipe plate, 107, a pressurizing valve body, 108, a water discharge pipe, 109, a water discharge valve body, 110, a heat exchange pipe, 200, a latex hose, 300, a U-shaped glass pipe, 301, a vertical pipe, 302, a bent pipe, 303, a positioning boss, 304, scales, 401, a base, 402, a fixed vertical plate, 403, a fixed clamping plate, 404, a movable clamping plate, 405, a rubber pad, 406 and a bolt.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure, as the terms used are used to describe particular embodiments only, and are not intended to limit the exemplary embodiments based on the disclosure.

Fig. 1 shows, the utility model relates to a tubular heat exchanger leak hunting device, including fixing base, U-shaped glass pipe 300 and latex hose 200. As shown in fig. 2, the fixing base includes a horizontally disposed plate-shaped base 401 and two fixing vertical plates 402 symmetrically disposed above the base 401, and a fixing clamp 403 and a movable clamp 404 are disposed between the two fixing vertical plates 402. The fixed clamp plate 403 is fixed on the fixed vertical plate 402 adjacent to the fixed clamp plate, and the movable clamp plate 404 is provided with an adjusting device for adjusting the distance between the fixed clamp plate 403 and the movable clamp plate 404. The adjusting device comprises a bolt 406, the tail end of the bolt 406 is fixedly connected to the middle position of one side of the movable clamping plate 404 far away from the U-shaped glass tube 300, a threaded hole matched with the bolt 406 is formed in the fixed vertical plate 402 close to the movable clamping plate 404, the bolt 406 passes through the threaded hole, and the head of the bolt 406 is located on one side of the fixed vertical plate 402 far away from the U-shaped glass tube 300.

As shown in fig. 5, the U-shaped glass tube 300 includes two vertical tubes 301 and a bent tube 302 at the bottom, wherein the vertical tubes 301 are provided with scales 304, and the upper ends of the vertical tubes 301 are open. A color floating ball may be respectively disposed in the two vertical pipes 301, and the color floating ball can move up and down in the vertical pipe 301 along with the change of the liquid level, so as to facilitate observation of the change of the liquid level in the U-shaped glass pipe 300, and at this time, the inner diameter of the bent pipe 302 should be smaller than the diameter of the color floating ball, so as to prevent the color floating ball from moving into the same vertical pipe 301 along with the water flow when water is added into the U-shaped glass pipe 300. The U-shaped glass tube 300 can be added with water with colors, and the liquid level condition therein can be conveniently observed.

The U-shaped glass tube 300 is vertically placed on the fixing seat, and the bottom of the U-shaped glass tube is located between the fixing clamp plate 403 and the movable clamp plate 404. as shown in fig. 3, the movable clamp plate 404 is moved towards the U-shaped glass tube 300 by the adjusting device, so that the U-shaped glass tube 300 is clamped by the fixing clamp plate 403 and the movable clamp plate 404. As shown in fig. 4, the movable clamp plate 404 is moved away from the U-shaped glass tube 300 by the adjusting means, so that the fixed clamp plate 403 and the movable clamp plate 404 release the U-shaped glass tube 300.

Rubber pads 405 are fixedly arranged on one sides of the fixed clamping plates 403 and the movable clamping plates 404 close to the U-shaped glass tube 300, so that the U-shaped glass tube 300 is prevented from being damaged due to overlarge clamping force when the U-shaped glass tube 300 is clamped. The lower parts of the two vertical tubes 301 are provided with positioning bosses 303 located at the same height, and the lower surfaces of the positioning bosses 303 lean against the upper end surfaces of the fixed clamping plate 403 or the movable clamping plate 404, so that the U-shaped glass tube 300 is vertically placed on the fixed seat.

As shown in fig. 1, one end of the latex hose 200 is connected to an upper opening of any one of the vertical pipes 301, a proper amount of water is added into the U-shaped glass tube 300, and when the liquid levels in the two vertical pipes 301 are the same, the other end of the latex hose 200 is connected to the water discharge pipe 107 of the heat exchanger. Closing an inlet valve 104 of the water inlet pipe 101 and an outlet valve 103 of the water outlet pipe 102, opening a water drain valve 108 on a water drain pipe 107, then opening a pressurizing valve 106, flushing high-pressure air into the heat exchange pipe 109, and observing the liquid level change in the two vertical pipes 301 when the pressure in the heat exchange pipe 109 reaches a certain degree. If the heat exchange tube 109 of the tube heat exchanger has no leakage, the liquid level heights in the two vertical tubes 301 are kept consistent; if the heat exchange tube 109 is leaked, the high-pressure gas in the heat exchange tube 109 leaks into the shell of the heat exchanger and then enters the U-shaped glass tube 300 through the water discharge tube 107, so that the liquid level in the vertical tube 301 connected with the latex hose 200 is reduced. Therefore, the leakage detection of the heat exchanger can be conveniently carried out without opening the end covers 105 at the two ends of the heat exchanger, time and labor are saved, and the operation is simple.

In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a tubular heat exchanger leak hunting device which characterized in that: the device comprises a fixed seat, a U-shaped glass tube and a latex hose, wherein the fixed seat comprises a horizontally arranged plate-shaped base and two fixed vertical plates symmetrically arranged above the base, a fixed clamping plate and a movable clamping plate are arranged between the two fixed vertical plates, the fixed clamping plate is fixed on the fixed vertical plate adjacent to the fixed clamping plate, the movable clamping plate is provided with an adjusting device for adjusting the distance between the fixed clamping plate and the movable clamping plate, the U-shaped glass tube comprises two vertical tubes and a bent tube at the bottom, the upper ends of the two vertical tubes are both open, one end of the latex hose is connected on the upper end opening of any vertical tube, the U-shaped glass tube is vertically arranged on the fixed seat, the movable clamping plate is moved towards the U-shaped glass tube through the adjusting device, so that the U-shaped glass tube is clamped by the fixed clamping plate and the movable clamping plate, the movable clamping plate is moved towards the direction far away from the U-shaped glass tube through the adjusting device, so that the U-shaped glass tube is loosened by the fixed clamping plate and the movable clamping plate.

2. The leak detection device for the tubular heat exchanger according to claim 1, wherein: scales are arranged on the two vertical pipes.

3. The leak detection device for the tubular heat exchanger according to claim 1, wherein: the two vertical pipes are respectively internally provided with a color floating ball, the color floating balls can move up and down in the vertical pipes, and the inner diameter of the bent pipe is smaller than that of the color floating balls.

4. The leak detection device for the tubular heat exchanger according to claim 1, wherein: the adjusting device comprises a bolt, the tail end of the bolt is fixedly connected to the middle position of one side, far away from the U-shaped glass tube, of the movable clamping plate, a threaded hole matched with the bolt is formed in the fixed vertical plate close to the movable clamping plate, the bolt penetrates through the threaded hole, and the head of the bolt is located on one side, far away from the U-shaped glass tube, of the fixed vertical plate.

5. A leak detection device for a tubular heat exchanger according to any one of claims 1 to 4, wherein: rubber pads are fixedly arranged on one sides, close to the U-shaped glass tubes, of the fixed clamping plates and the movable clamping plates.

6. A leak detection device for a tubular heat exchanger according to any one of claims 1 to 4, wherein: the lower parts of the two vertical pipes are provided with positioning bosses which are positioned at the same height, and the lower surfaces of the positioning bosses lean against the upper end surfaces of the fixed clamping plates or the movable clamping plates, so that the U-shaped glass tubes are vertically placed on the fixed seats.