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CN-224229728-U - Low-temperature high-pressure hydrogen storage filling equipment

CN224229728UCN 224229728 UCN224229728 UCN 224229728UCN-224229728-U

Abstract

The utility model discloses low-temperature high-pressure hydrogen storage filling equipment, and relates to the technical field of hydrogen storage filling equipment. The utility model comprises a storage tank, a sealing assembly and a leakage active detection assembly, wherein the top of the storage tank is communicated with a conveying pipe, a control valve is arranged on the surface of the conveying pipe, and the sealing assembly comprises a metal hose. According to the utility model, the metal hose and the conveying pipe are connected through the sealing assembly, the top of the conveying pipe is covered by the sealing cover to form a first sealing barrier, the electric cylinder in the secondary sealing mechanism drives the bracket to move upwards, the extrusion ring is forced to apply radial pressure to the slope surface of the conical sealing rubber ring, so that the extrusion ring is tightly attached to the surface of the conveying pipe to form self-adaptive sealing, the screw rods on two sides of the fixing plate are screwed into the fixing sleeve to realize mechanical locking, the multi-layer sealing structure cooperates, the sealing reliability of the connecting part in an extremely low-temperature high-pressure environment is obviously improved, and hydrogen leakage caused by material shrinkage difference is prevented.

Inventors

  • JIN MENG

Assignees

  • 靳蒙

Dates

Publication Date
20260512
Application Date
20250630

Claims (7)

  1. 1. The low-temperature high-pressure hydrogen storage filling equipment comprises a storage tank (1), a sealing assembly (4) and a leakage active detection assembly (5) and is characterized in that the top of the storage tank (1) is communicated with a conveying pipe (2), and a control valve (3) is arranged on the surface of the conveying pipe (2); The sealing assembly (4) comprises a metal hose (41), a sealing cover (42) is fixedly connected to the surface of the metal hose (41), a secondary sealing mechanism (43) is fixedly connected to the rear side of the sealing cover (42), a sealing ring (44) is fixedly connected to the top of an inner cavity of the sealing cover (42), a fixing plate (45) is fixedly connected to the surface of the sealing cover (42), screw rods (46) are arranged on two sides of the top of the fixing plate (45), the bottom of the screw rods (46) penetrates through the fixing plate (45) and is in threaded connection with a fixing sleeve (47), and the bottom of the fixing sleeve (47) is fixedly connected with the storage tank (1); The leakage active detection assembly (5) comprises a detection tube (51), the rear side of the detection tube (51) is fixedly connected with a metal hose (41), an exhaust fan (52) is communicated with the front side of the detection tube (51), a cover plate (53) is arranged at the top of the detection tube (51), and a hydrogen concentration detection sensor (54) is fixedly connected to the bottom of the cover plate (53).
  2. 2. The low-temperature high-pressure hydrogen storage filling equipment according to claim 1, wherein the secondary sealing mechanism (43) comprises an electric cylinder (431), the front side of the electric cylinder (431) is fixedly connected with a sealing cover (42), the bottom of the output end of the electric cylinder (431) is fixedly connected with a bracket (432), the top of the bracket (432) is fixedly connected with an extrusion ring (433), and the inner wall of the sealing cover (42) is fixedly connected with a conical sealing rubber ring (434).
  3. 3. The low-temperature high-pressure hydrogen storage filling equipment according to claim 1, wherein a limiting convex ring is fixedly connected to the surface of the conveying pipe (2), a knob is fixedly connected to the top of the screw rod (46), and the surface of the screw rod (46) is movably connected with the fixing sleeve (47) through a bearing.
  4. 4. The low-temperature high-pressure hydrogen storage filling equipment according to claim 1, wherein handles are fixedly connected to two sides of the sealing cover (42), and an air suction cover is communicated with the bottom of the detection tube (51).
  5. 5. The low-temperature high-pressure hydrogen storage filling equipment according to claim 1, wherein a filter screen (6) is fixedly connected between two sides of the inner cavity of the detection tube (51), and a handle is fixedly connected to the top of the cover plate (53).
  6. 6. The low-temperature high-pressure hydrogen storage filling equipment according to claim 1, wherein the bottom of the surface of the cover plate (53) is in interference connection with the inner wall of the detection tube (51), and the rear side of the detection tube (51) is fixedly connected with the metal hose (41) through a connecting frame.
  7. 7. The low-temperature high-pressure hydrogen storage filling equipment according to claim 1 is characterized in that a protection frame (7) is fixedly connected to the surface of the storage tank (1), a discharge pipe is communicated with the right side of the storage tank (1), and a valve is arranged on the surface of the discharge pipe.

Description

Low-temperature high-pressure hydrogen storage filling equipment Technical Field The utility model belongs to the technical field of hydrogen storage filling equipment, and particularly relates to low-temperature high-pressure hydrogen storage filling equipment. Background The high-temperature high-pressure hydrogen storage filling device is a special device for storing, pressurizing and filling liquid or high-pressure gaseous hydrogen, maintains the liquid hydrogen storage through a low-temperature heat insulation technology, is provided with a high-pressure compression system to realize the rapid filling of hydrogen, and is key equipment for connecting the storage and the terminal application in a hydrogen energy industry chain. In the existing low-temperature high-pressure hydrogen storage filling equipment, parts such as a hydrogen storage container, a conveying pipeline, a filling interface and the like are connected in a flange or threaded connection mode, sealing is realized by means of a sealing element, however, under severe working conditions of extremely low temperature and extremely high working pressure, sealing failure is easy to occur at a connecting part due to factors such as material shrinkage difference, performance attenuation of the sealing element, structural stress concentration and the like, so that hydrogen leakage is caused, energy waste and potential safety hazard are caused, the reliability and the service life of the equipment are severely restricted, and the equipment is unfavorable to use. To this end we provide a low temperature, high pressure hydrogen storage filling device to solve the above problems. Disclosure of utility model The utility model aims to provide low-temperature high-pressure hydrogen storage filling equipment, which solves the problems that sealing failure and hydrogen leakage occur in sealing element materials due to shrinkage difference in the process of filling hydrogen by matching a sealing assembly with a leakage active detection assembly in the prior art. In order to solve the technical problems, the utility model is realized by the following technical scheme. The utility model relates to low-temperature high-pressure hydrogen storage filling equipment which comprises a storage tank, a sealing assembly and a leakage active detection assembly, wherein the top of the storage tank is communicated with a conveying pipe, a control valve is installed on the surface of the conveying pipe, the sealing assembly comprises a metal hose, a sealing cover is fixedly connected to the surface of the metal hose, a secondary sealing mechanism is fixedly connected to the rear side of the sealing cover, a sealing ring is fixedly connected to the top of an inner cavity of the sealing cover, a fixing plate is fixedly connected to the surface of the sealing cover, screws are arranged on two sides of the top of the fixing plate, the bottom of each screw penetrates through the fixing plate and is in threaded connection with a fixing sleeve, the bottom of the fixing sleeve is fixedly connected with the storage tank, the leakage active detection assembly comprises a detection pipe, the rear side of the detection pipe is fixedly connected with the metal hose, an exhaust fan is communicated with the front side of the detection pipe, a cover plate is arranged on the top of the detection pipe, and a hydrogen concentration detection sensor is fixedly connected to the bottom of the cover plate. The secondary sealing mechanism comprises an electric cylinder, the front side of the electric cylinder is fixedly connected with the sealing cover, the bottom of the output end of the electric cylinder is fixedly connected with the bracket, the top of the bracket is fixedly connected with the extrusion ring, the inner wall of the sealing cover is fixedly connected with the conical sealing rubber ring, the electric cylinder can control the using height of the bracket, and the bracket is used for controlling the extrusion ring to extrude the slope surface of the conical sealing rubber ring upwards when moving, so that the conical sealing rubber ring is tightly attached to the surface of the conveying pipe, and the sealing performance in the hydrogen filling process is improved. The utility model is further characterized in that the surface of the conveying pipe is fixedly connected with a limit convex ring, the top of the screw is fixedly connected with a knob, the surface of the screw is movably connected with the fixing sleeve through a bearing, the limit convex ring can limit the conical sealing rubber ring, the knob is convenient for a user to rotate the screw, and the bearing is used for improving the stability of the screw in the rotating process. The utility model is further arranged that the two sides of the sealing cover are fixedly connected with the handles, the bottom of the detection tube is communicated with the air suction cover, the handles facilitate the user to lift the sealin