Pressurization detection device for hydrogenation machine

Abstract

The utility model provides a pressure detection device for a hydrogenation machine, which comprises a connecting pipe, a connecting piece arranged on the outer side of the connecting pipe, a protective cover arranged on the outer side of the connecting piece, a pressure detector arranged on the outer side of the connecting piece, and a limiting piece arranged on the outer side of the connecting piece. The connecting piece comprises a fixing seat fixedly connected to the top of the connecting pipe, a connecting seat is fixedly connected to the top of the fixing seat, a fixing pipe is fixedly connected to the interior of the connecting seat, a connecting pipe is connected to the interior of the fixing pipe in a threaded mode, and the connecting piece further comprises a sleeve and a mounting seat which are fixedly connected to the outer side of the connecting pipe. The pressing detection device for the hydrogenation machine solves the problems that in an existing device, a threaded rod is used for driving a sealing cover to move, after the threaded rod is used for a long time, the threaded rod and threads are abraded, the firmness of the sealing cover is reduced, and the sealing performance of an instrument and a communicating pipe is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogenation machines, in particular to a pressure detection device for hydrogenation machines. Background Art

[0002] A hydrogen refueling machine is a device used to convert ordinary gasoline or diesel into high-purity hydrogen, and is usually used in hydrogen fuel cell vehicle charging stations. In a car charging station, the vehicle's battery needs to be frequently "replaced" or "refueled", and hydrogen refueling is a faster way to replenish energy because it can complete the entire fuel conversion process within a few seconds, making hydrogen refueling a very useful way to replenish transportation fuel. The hydrogen refueling machine pressure detection device is a device used to check whether the internal pressure of the hydrogen refueling machine is normal to ensure safe and efficient operation.

[0003] The patent document with announcement number: CN219995064U discloses "a pressure detection device for a hydrogen filling station". After turning the knob, the knob drives the threaded rod to rotate and move linearly inside the connecting seat, and the threaded rod drives the sealing cover to move synchronously inside the cavity until the surfaces of the two sets of sealing covers fit each other. At this time, the sealing cover will wrap and cover the connection between the pressure detection gauge and the connecting pipe through the first sealing ring bonded to the inner wall, thereby playing a sealing role. However, in the above device, the threaded rod is used to drive the sealing cover to move. After the threaded rod is used for a long time, the threaded rod and the thread will be worn, thereby reducing the firmness of the sealing cover, which will affect the sealing of the instrument and the connecting pipe. Therefore, it is necessary to provide a pressure detection device for a hydrogen filling machine to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an easy-to-use pressure detection device for a hydrogenation machine.

[0005] The utility model provides a pressure detection device for a hydrogenator, comprising a tube body, a connecting piece is arranged on the outside of the tube body, a protective cover is arranged on the outside of the connecting piece, a pressure detector is arranged on the outside of the connecting piece, and a limit piece is arranged on the outside of the connecting piece.

[0006] In order to connect and fix the pressure detector and the pipeline, the utility model provides a pressure detection device for a hydrogenator. Preferably, the connecting piece includes a fixing seat fixedly connected to the top of the pipe body, the top of the fixing seat is fixedly connected to the connecting seat, the interior of the connecting seat is fixedly connected to a fixing pipe, and the interior of the fixing pipe is threadedly connected to a connecting pipe.

[0007] In order to improve the firmness between the connecting pipe and the fixing seat, the utility model provides a pressure detection device for a hydrogenation machine. Preferably, the connecting piece also includes a sleeve and a mounting seat fixedly connected to the outside of the connecting pipe.

[0008] In order to detect the internal pressure of the pipeline, the utility model provides a pressure detection device for a hydrogenation machine. Preferably, the pressure detector and the connecting pipe are fixedly connected.

[0009] In order to improve the connection firmness between the fixing seat and the mounting seat, the utility model provides a pressure detection device for a hydrogenation machine. Preferably, the limit member includes a hydraulic rod fixedly connected to the outside of the fixing seat, the piston rod of the hydraulic rod is fixedly connected to a connecting plate, and the outside of the connecting plate is fixedly connected to a pressure plate.

[0010] In order to detect whether hydrogen is leaking, the utility model provides a pressure detection device for a hydrogen filling machine. Preferably, a hydrogen concentration detector is fixedly connected to the inside of the protective cover, and an observation window is fixedly connected to the outside of the protective cover.

[0011] In order to improve the sealing between the protective cover and the fixed seat, the utility model provides a pressure detection device for a hydrogenation machine. Preferably, a connecting block is fixedly connected to the outer side of the protective cover, a sealing gasket is fixedly connected to the bottom of the protective cover, and a groove is opened on the top of the fixed seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is used for the pressure testing of hydrogen filling machine. The connecting pipe is threadedly connected to the inside of the fixed pipe by rotating the connecting pipe, so that the pressure detector is installed on the connecting seat. After the connecting pipe is connected and fixed to the fixed pipe, the sleeve is just sleeved on the outside of the fixed pipe, and the mounting seat and the connecting seat are fitted, thereby improving the connection strength between the connecting pipe and the fixed pipe. After the mounting seat and the connecting seat are connected, the hydraulic rod is turned on to drive the connecting plate and the pressure plate to move downward, and the mounting seat is pressed on the connecting seat to prevent the mounting seat and the connecting seat from loosening, thereby facilitating the installation and removal of the pressure detector. The connection between the pressure detector and the connecting pipe is sealed by a protective cover to prevent hydrogen leakage, thereby solving the problem that the threaded rod is used to drive the sealing cover to move in the existing device, and the threaded rod and the thread will be worn after the threaded rod is used for a long time, thereby reducing the firmness of the sealing cover and affecting the sealing of the instrument and the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a pressure detection device for a hydrogenation machine provided by the utility model;

[0015] Figure 2 It is a structural schematic diagram of the limiter of the utility model;

[0016] Figure 3 This is a structural schematic diagram of the connecting seat of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the connecting pipe of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure inside the protective cover of the utility model.

[0019] Numbers in the figure: 1. Tube body; 2. Connecting piece; 201. Fixing seat; 202. Connecting seat; 203. Fixing pipe; 204. Connecting pipe; 205. Sleeve; 206. Mounting seat; 3. Protective cover; 4. Pressure detector; 5. Limiting piece; 501. Hydraulic rod; 502. Connecting plate; 503. Pressing plate; 6. Hydrogen concentration detector; 7. Observation window; 8. Sealing gasket; 9. Groove; 10. Connecting block. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in Figure 1 A schematic structural diagram of a preferred embodiment of a pressure detection device for a hydrogenation machine provided by the utility model; Figure 2 It is a structural schematic diagram of the limiter of the utility model; Figure 3 This is a structural schematic diagram of the connecting seat of the utility model; Figure 4 This is a schematic diagram of the structure of the connecting pipe of the utility model; Figure 5 The schematic diagram of the structure inside the protective cover of the utility model. A pressure detection device for a hydrogenation machine includes a pipe body 1, a connecting piece 2 is arranged on the outside of the pipe body 1, and the detector is connected and fixed to the pipeline by the connecting piece 2, a protective cover 3 is arranged on the outside of the connecting piece 2, and the protective cover 3 is used to protect the detector, a pressure detector 4 is arranged on the outside of the connecting piece 2, and the pressure of the equipment is detected by the pressure detector 4, and a limiter 5 is arranged on the outside of the connecting piece 2, and the limiter 5 is used to improve the connection strength of the connecting piece 2.

[0022] In this embodiment: the tube body 1 is connected to the device, the pressure detector 4 is connected and fixed to the tube body 1 by using the connecting piece 2, the pressure detector 4 is used to detect the pressure of the tube body 1 and the device, and the connecting piece 2 is reinforced by using the limiter 5 to improve the connection sealing between the pressure detector 4 and the tube body 1.

[0023] As a technical optimization solution of the utility model, the connecting piece 2 includes a fixing seat 201 fixedly connected to the top of the tube body 1, the fixing seat 201 is welded to the outer side of the tube body 1, the top of the fixing seat 201 is fixedly connected with a connecting seat 202, the connecting seat 202 is welded to the top of the fixing seat 201, the inside of the connecting seat 202 is fixedly connected with a fixing pipe 203, the fixing pipe 203 is welded to the outer side of the connecting seat 202, the inside of the fixing pipe 203 is threadedly connected with a connecting pipe 204, the connecting pipe 204 is threadedly connected to the inside of the fixing pipe 203, the pressure detector 4 is fixedly connected to the connecting pipe 204, and the pressure detector 4 is welded to the connecting pipe 204.

[0024] In this embodiment, the rotating connecting tube 204 is threadedly connected to the interior of the fixing tube 203 , thereby installing the pressure detector 4 on the connecting seat 202 .

[0025] As a technical optimization solution of the utility model, the connecting member 2 also includes a sleeve 205 and a mounting seat 206 fixedly connected to the outside of the connecting pipe 204 , the sleeve 205 is welded to the outside of the connecting pipe 204 , and the mounting seat 206 is welded to the outside of the sleeve 205 .

[0026] In this embodiment: after the connecting tube 204 is connected and fixed to the fixing tube 203 , the sleeve 205 is just sleeved on the outside of the fixing tube 203 , and the mounting seat 206 fits with the connecting seat 202 , thereby improving the connection strength between the connecting tube 204 and the fixing tube 203 .

[0027] As a technical optimization solution of the utility model, the limiter 5 includes a hydraulic rod 501 fixedly connected to the outside of the fixed seat 201, the hydraulic rod 501 is fixedly connected to the outside of the fixed seat 201 by bolts, the piston rod of the hydraulic rod 501 is fixedly connected to a connecting plate 502, the connecting plate 502 is welded to the piston rod of the hydraulic rod 501, the outside of the connecting plate 502 is fixedly connected to a pressure plate 503, and the pressure plate 503 is welded to the outside of the connecting plate 502.

[0028] In this embodiment: after the mounting seat 206 and the connecting seat 202 are connected, the hydraulic rod 501 is turned on to drive the connecting plate 502 and the pressing plate 503 to move downward, pressing the mounting seat 206 on the connecting seat 202 to prevent the mounting seat 206 and the connecting seat 202 from loosening.

[0029] As a technical optimization solution of the utility model, a hydrogen concentration detector 6 is fixedly connected to the inside of the protective cover 3, and the hydrogen concentration detector 6 is fixedly connected to the inside of the protective cover 3 by bolts. An observation window 7 is fixedly connected to the outside of the protective cover 3, and the observation window 7 is welded to the outside of the protective cover 3.

[0030] In this embodiment: the connection between the pressure detector 4 and the tube body 1 is sealed by the protective cover 3 to prevent hydrogen leakage, and the observation window 7 is used for the staff to observe the readings of the pressure detector 4 and the hydrogen concentration detector 6. The hydrogen concentration detector 6 is used to detect the hydrogen concentration inside the protective cover 3. If hydrogen leakage occurs, the reading of the hydrogen concentration detector 6 changes, so that the staff can take remedial measures.

[0031] As a technical optimization solution of the utility model, a connecting block 10 is fixedly connected to the outer side of the protective cover 3, and the connecting block 10 is welded to the outer side of the protective cover 3. A sealing gasket 8 is fixedly connected to the bottom of the protective cover 3, and the sealing gasket 8 is glued to the bottom of the protective cover 3. A groove 9 is opened at the top of the fixed seat 201, and the groove 9 is opened at the top of the fixed seat 201.

[0032] In this embodiment: the protective cover 3 is clamped on the fixing seat 201, the sealing gasket 8 is clamped into the inside of the groove 9 to improve the sealing between the protective cover 3 and the fixing seat 201, the connecting block 10 is clamped into the outside of the fixing seat 201, bolts are arranged inside, and screw holes are opened inside the fixing seat 201. The connecting block 10 is used to fix the protective cover 3 to the outside of the fixing seat 201 with bolts.

[0033] The working principle of the pressure detection device for a hydrogenation machine provided by the utility model is as follows:

[0034] When the hydrogenator is pressure tested, one end of the pipe body 1 is connected to the hydrogenator, and the other end is connected to the air pump. The connecting pipe 204 is turned to be threaded and connected to the inside of the fixed pipe 203, so that the pressure detector 4 is installed on the connecting seat 202. After the connecting pipe 204 is connected and fixed to the fixed pipe 203, the sleeve 205 is just sleeved on the outside of the fixed pipe 203, and the mounting seat 206 and the connecting seat 202 are fitted to improve the connection strength between the connecting pipe 204 and the fixed pipe 203. After the mounting seat 206 and the connecting seat 202 are connected, the hydraulic rod 501 is opened to drive the connecting plate 5 02 and the pressure plate 503 move downward to press the mounting seat 206 onto the connecting seat 202 to prevent the mounting seat 206 and the connecting seat 202 from loosening, so as to facilitate the installation and removal of the pressure detector 4. The connection between the pressure detector 4 and the tube body 1 is sealed by the protective cover 3 to prevent hydrogen leakage. The observation window 7 is convenient for the staff to observe the readings of the pressure detector 4 and the hydrogen concentration detector 6. The hydrogen concentration detector 6 is used to detect the hydrogen concentration inside the protective cover 3. If hydrogen leaks, the reading of the hydrogen concentration detector 6 changes, so that the staff can take remedial measures.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pressure detection device for a hydrogenation machine, characterized in that: The invention comprises a tube body (1), a connecting piece (2) is arranged on the outside of the tube body (1), a protective cover (3) is arranged on the outside of the connecting piece (2), a pressure detector (4) is arranged on the outside of the connecting piece (2), and a limiting piece (5) is arranged on the outside of the connecting piece (2).

2. The pressure detection device for a hydrogenation machine according to claim 1, characterized in that: The connecting member (2) comprises a fixing seat (201) fixedly connected to the top of the tube body (1); the top of the fixing seat (201) is fixedly connected to a connecting seat (202); the interior of the connecting seat (202) is fixedly connected to a fixing pipe (203); the interior of the fixing pipe (203) is threadedly connected to a connecting pipe (204).

3. The pressure detection device for a hydrogenation machine according to claim 2, characterized in that: The connecting piece (2) further comprises a sleeve (205) and a mounting seat (206) fixedly connected to the outside of the connecting pipe (204).

4. The pressure detection device for a hydrogenation machine according to claim 3, characterized in that: The pressure detector (4) and the connecting pipe (204) are fixedly connected.

5. The pressure detection device for a hydrogenation machine according to claim 2, characterized in that: The limiting member (5) comprises a hydraulic rod (501) fixedly connected to the outside of the fixing seat (201), the piston rod of the hydraulic rod (501) is fixedly connected to a connecting plate (502), and the outside of the connecting plate (502) is fixedly connected to a pressing plate (503).

6. The pressure detection device for a hydrogenation machine according to claim 1, characterized in that: A hydrogen concentration detector (6) is fixedly connected to the interior of the protective cover (3), and an observation window (7) is fixedly connected to the exterior of the protective cover (3).

7. The pressure detection device for a hydrogenation machine according to claim 2, characterized in that: A connection block (10) is fixedly connected to the outer side of the protective cover (3), a sealing gasket (8) is fixedly connected to the bottom of the protective cover (3), and a groove (9) is formed on the top of the fixing seat (201).

Images