Air pressure detection device for long-term service of hydrogen production conveying pipeline

Abstract

The utility model relates to the technical field of air pressure detection, in particular to a hydrogen production conveying pipeline long-term service air pressure detection device which comprises a device shell, an air pressure meter is arranged on the surface of the device shell, connecting pipes are fixedly connected to the two sides of the device shell, flange plates are fixedly connected to the surfaces of the connecting pipes, and a fixing cover is fixedly connected to the surface of the device shell. The surface of the fixed cover is fixedly connected with a glass plate, the surface of the fixed cover is fixedly connected with a sliding rod, and the outer surface of the sliding rod is sleeved with a movable cover. Under the action of the fixed cover and the movable cover, the barometer is protected, damage to normal use of the barometer caused by external factors is reduced, the service life of the barometer is prolonged, the effect of the barometer is improved, the connecting cover is connected with the sealing sleeve, abutting sealing operation can be conducted on the connecting position of the flange plate under the action of the sealing sleeve, and the sealing effect is improved. The connection and use sealing performance of the flange plate is improved, and the installation sealing performance of the air pressure detector is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air pressure detection, specifically to a hydrogen production conveying pipeline long -term service air pressure detection device. BACKGROUND

[0002] In the hydrogen production operation, the hydrogen produced by electrolysis is conveyed to the corresponding storage tank through the conveying pipeline, which facilitates subsequent processing operation. In order to monitor the hydrogen pressure in the conveying pipeline, an air pressure detector is installed on the conveying pipeline. By observing the change of pressure value, the change of pipeline sealing or hydrogen production can be observed intuitively. However, when the existing air pressure detector is used, the air pressure gauge is placed outside and serves in the conveying pipeline for a long time. There is no protective mechanism on the surface. During use, it is easy to be affected by external factors, which reduces its normal service life. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a hydrogen production conveying pipeline long -term service air pressure detection device to solve the problem that the air pressure gauge is placed outside and serves in the conveying pipeline for a long time, there is no protective mechanism on the surface, and it is easy to be affected by external factors during use, which reduces its normal service life.

[0004] To achieve the above purpose, the utility model provides the following technical scheme. A hydrogen production conveying pipeline long -term service air pressure detection device comprises a shell, an air pressure gauge is arranged on the surface of the shell, connecting pipes are fixedly connected to the two sides of the shell, flanges are fixedly connected to the surface of the connecting pipes, a fixed cover is fixedly connected to the surface of the shell, a glass plate is fixedly connected to the surface of the fixed cover, a sliding rod is fixedly connected to the surface of the fixed cover, and a movable cover is sleeved on the outer surface of the sliding rod.

[0005] Preferably, the flange and the connecting pipe are connected, and the fixed cover is sleeved on the outer surface of the air pressure gauge through the shell.

[0006] Preferably, the glass plate is inserted through the fixed cover and the movable cover, and a through hole is formed in the surface of the movable cover.

[0007] Preferably, the sliding rod penetrates the surface of the movable cover through the through hole, and the movable cover is in contact with the fixed cover through the sliding rod.

[0008] Preferably, a connecting cover is sleeved on the outer surface of the connecting pipe, a sealing sleeve is fixedly connected to the inner wall of the connecting cover, and a screw sleeve is fixedly connected to the surface of the connecting cover.

[0009] Preferably, the screw sleeve is sleeved with the connecting pipe through threads, the connecting cover is slidably connected with the connecting pipe through the screw sleeve, and the sealing sleeve is made of rubber.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] 1, through the connection of fixed cover and vessel shell, under the connection of fixed cover and glass plate, the plug connection of movable cover and slide rod, realize the plug connection support effect between movable cover and fixed cover, under the action of fixed cover and movable cover, reach the protection effect to barometer, reduce the damage of external factors to the normal use of barometer, improve its service life and effect.

[0012] 2, through the connection of connecting cover and screw sleeve, under the rotary connection of screw sleeve and connecting pipe, change the action position of connecting cover on connecting pipe, under the action of sealing sleeve, the abutting and sealing operation of flange plate connecting portion through the connection of connecting cover and sealing sleeve, improve the sealing performance of flange plate connection, further improve the installation sealing performance of air pressure detector. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure front view three-dimensional schematic diagram of the utility model;

[0014] Figure 2 It is the structure front view three-dimensional dynamic schematic diagram of the utility model;

[0015] Figure 3 It is the connecting structure three-dimensional explosion schematic diagram of the utility model flange plate and connecting cover;

[0016] Figure 4 It is the connecting structure local three-dimensional sectional view schematic diagram of the utility model connecting cover and flange plate.

[0017] In the drawing: 1, vessel shell;11, barometer;12, flange plate;13, connecting pipe;2, fixed cover;21, glass plate;22, movable cover;23, slide rod;3, connecting cover;31, sealing sleeve;32, screw sleeve. DETAILED DESCRIPTION

[0018] Please refer to Figures 1-4 The utility model provides an embodiment:

[0019] A kind of hydrogen production delivery pipeline long-term service air pressure detection device, including vessel shell 1, the surface of vessel shell 1 is provided with barometer 11, the both sides of vessel shell 1 are fixedly connected with connecting pipe 13, the surface of connecting pipe 13 is fixedly connected with flange plate 12, the surface of vessel shell 1 is fixedly connected with fixed cover 2, the surface of fixed cover 2 is fixedly connected with glass plate 21, the surface of fixed cover 2 is fixedly connected with slide rod 23, the outer surface of slide rod 23 is sleeved with movable cover 22, by the connection of vessel shell 1 and barometer 11, under the action of barometer 11, it is convenient to observe air pressure value, the connection use mode of vessel shell 1 and barometer 11 is prior art of existing product, without making too much statement here.

[0020] Further, the flange plate 12 and the connecting pipe 13 are connected, the fixed cover 2 is sleeved on the outer surface of the air pressure gauge 11 through the shell 1, and the fixed cover 2 is connected with the connecting pipe 13. Under the action of the flange plate 12, the shell 1 is conveniently installed and supported on the conveying pipeline as a whole.

[0021] Further, the glass plate 21 is inserted through the fixed cover 2 and the movable cover 22, the surface of the movable cover 22 is provided with a through hole, the fixed cover 2 and the shell 1 are fixedly connected, and the movable cover 22 is abutted and connected with the fixed cover 2. Under the abutted connection of the fixed cover 2 and the movable cover 22, the movable cover 22 protects the air pressure gauge 11, and under the action of the glass plate 21, the normal use and observation of the air pressure gauge 11 are not affected.

[0022] Further, the sliding rod 23 penetrates the surface of the movable cover 22 through the through hole, the movable cover 22 is abutted and contacted with the fixed cover 2 through the sliding rod 23 and the fixed cover 2, the movable cover 22 is connected with the fixed cover 2 through the through hole on the movable cover 22 and the insertion of the sliding rod 23, and the abutted support and sliding limiting effect between the movable cover 22 and the fixed cover 2 is realized.

[0023] Further, the outer surface of the connecting pipe 13 is sleeved with the connecting cover 3, the inner wall of the connecting cover 3 is fixedly connected with the sealing sleeve 31, and the surface of the connecting cover 3 is fixedly connected with the screw sleeve 32. Through the threaded connection of the connecting pipe 13 and the screw sleeve 32, the action position of the connecting cover 3 is adjusted under the action of the screw sleeve 32, and then the use position of the sealing sleeve 31 is changed.

[0024] Further, the screw sleeve 32 is sleeved with the connecting pipe 13 through the thread, the connecting cover 3 is slidably connected with the connecting pipe 13 through the screw sleeve 32 and the connecting pipe 13, the material of the sealing sleeve 31 is rubber, and the connecting cover 3 and the sealing sleeve 31 are connected. Under the abutted contact of the sealing sleeve 31 and the outer surface of the flange plate 12, the abutted sealing effect of the flange plate 12 connected on the conveying pipeline is realized, and the sealing performance and effect of the connection use are improved.

[0025] Working principle: under the action of the fixed cover 2 and the movable cover 22, the air pressure gauge 11 can be protected in the use of the external environment. When the air pressure gauge 11 needs to be cleaned or replaced, pull the movable cover 22, and make the movable cover 22 slide on the sliding rod 23. At this time, the air pressure gauge 11 is exposed to the outside, which is convenient for operation. When the shell 1 is installed as a whole, the flange plate 12 is connected with the conveying pipeline, after the connection is completed, the connecting cover 3 is rotated, the action position of the connecting cover 3 on the connecting pipe 13 is changed under the threaded connection of the screw sleeve 32 and the connecting pipe 13, the sealing sleeve 31 of the connecting cover 3 is abutted with the flange plate 12, and the gap between the flange plate 12 and the conveying pipeline is blocked under the action of the sealing sleeve 31. Usually, a sealing ring is used between the flange plate 12 and the conveying pipeline. Under the application of the sealing sleeve 31, the sealing performance between the flange plate 12 and the conveying pipeline is further improved.

Claims

1. A long-term service pressure detection device for a hydrogen production and delivery pipeline, comprising a device housing, characterized in that: The surface of the casing is provided with a barometer, both sides of the casing are fixedly connected with a connecting pipe, the surface of the connecting pipe is fixedly connected with a flange, the surface of the casing is fixedly connected with a fixed cover, the surface of the fixed cover is fixedly connected with a glass plate, the surface of the fixed cover is fixedly connected with a sliding rod, and the outer surface of the sliding rod is sleeved with a movable cover.

2. The long-term service gas pressure detection device for a hydrogen delivery pipeline according to claim 1, characterized by: The flange and the connecting pipe are connected in passage, and the fixed cover is sleeved on the outer surface of the barometer through the casing.

3. The long-term service gas pressure detection device for a hydrogen delivery pipeline according to claim 1, characterized by: The glass plate is inserted through the fixed cover and the movable cover, and the surface of the movable cover is penetrated through a through hole.

4. The long-term service gas pressure detection device for a hydrogen delivery pipeline according to claim 3, characterized by: The sliding rod penetrates the surface of the movable cover through the through hole, and the movable cover is in contact by abutting through the sliding rod and the fixed cover.

5. The long-term service gas pressure detection device for a hydrogen delivery pipeline according to claim 1, characterized by: The outer surface of the connecting pipe is sleeved with a connecting cover, the inner wall of the connecting cover is fixedly connected with a sealing sleeve, and the surface of the connecting cover is fixedly connected with a screw sleeve.

6. The long-term service gas pressure detection device for a hydrogen delivery pipeline according to claim 5, characterized by: The screw sleeve is sleeved with the connecting pipe through threads, the connecting cover is slidingly connected with the connecting pipe through the screw sleeve, and the sealing sleeve is made of rubber.

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