CN-122015001-A - Integral explosion-proof skid-mounted hydrogen supercharging or decompression quantitative conveying system

CN122015001ACN 122015001 ACN122015001 ACN 122015001ACN-122015001-A

Abstract

The invention discloses an integral explosion-proof skid-mounted hydrogen pressurizing or depressurizing quantitative conveying system, and relates to the technical field of hydrogen transportation and storage. The integral explosion-proof skid-mounted hydrogen pressurizing or depressurizing quantitative conveying system comprises an explosion-proof skid-mounted box and a hydrogen conveying system arranged in the explosion-proof skid-mounted box, wherein the hydrogen conveying system comprises a compressor, a hydrogen storage tank and a depressurizing energy storage mechanism, the compressor pressurizes and stores hydrogen into the hydrogen storage tank, the hydrogen storage tank outputs hydrogen through depressurization of the depressurizing energy storage mechanism, the depressurizing energy storage mechanism converts the pressure of released high-pressure hydrogen into gravitational potential energy for storage, the high-pressure air is utilized to jack up a counterweight piston, so that the counterweight piston increases the gravitational potential energy, further conversion and storage of hydrogen pressure are realized, the lifted counterweight piston can slide downwards, a pulling belt is utilized to pull a rolling energy release device to operate, the gravitational potential energy can be converted into rotational kinetic energy for output, equipment operation can be driven, or a generator operation is driven to generate electric power for storage.

Inventors

HAN MIN
FENG LIXIN
LI MINGXUAN
HE YIHONG
Qiu Yunong

Assignees

欧科能源技术(天津)有限公司

Dates

Publication Date: 20260512
Application Date: 20260327

Claims (10)

1. The utility model provides an overall explosion-proof sled dress formula hydrogen pressure boost or decompression ration conveying system, includes explosion-proof sled case and the hydrogen conveying system who installs in it, wherein hydrogen conveying system includes compressor, hydrogen storage tank and decompression energy storage mechanism, the compressor is with hydrogen pressurization storage to the hydrogen storage tank in, the hydrogen storage tank is through decompression energy storage mechanism step down output hydrogen, and decompression energy storage mechanism is with the pressure conversion of the high-pressure hydrogen of release gravitational potential energy storage, decompression energy storage mechanism divide into the multiunit that the parallel set up, includes: The pressure-reducing energy storage tank utilizes the high-pressure hydrogen to push up a counterweight piston in the pressure-reducing energy storage tank so as to store gravitational potential energy, and the top of the counterweight piston is connected with a tension belt; The winding energy release device is arranged on one side of the decompression energy storage tank and used for connecting the other end of the tension belt and winding, the winding energy release device comprises a wheel frame, a hollow shaft is rotationally connected to the inside of the wheel frame, the surface of the hollow shaft is fixedly connected with a winding wheel which is positioned on the inner side of the wheel frame, a spring box is fixedly connected to one side of the wheel frame, the central end of the spring in the spring box is abutted to the hollow shaft, a prismatic shaft is rotationally connected to the inside of the hollow shaft, the prismatic shaft penetrates through a plurality of groups of hollow shafts at the same time, a ratchet wheel connecting assembly is sleeved on the surface of the prismatic shaft, the ratchet wheel connecting assembly is fixedly connected to one end of the hollow shaft, and the hollow shaft can only rotate unidirectionally relative to the prismatic shaft through the ratchet wheel connecting assembly, so that the prismatic shafts are independently driven when the energy release of each group of hollow shafts.
2. The integrated explosion-proof skid-mounted hydrogen pressurizing or depressurizing quantitative conveying system as claimed in claim 1, wherein: the ratchet connection assembly includes: The main shell is coaxially and fixedly connected with one end of the hollow shaft; The round cover is fixedly connected with the main shell through bolts; The ratchet wheel is rotationally connected to the inside of the main shell, and the ratchet wheel is sleeved outside the prismatic shaft; The one-way teeth are arranged around the periphery of the ratchet wheel, and are rotationally connected with the main shell and the round cover; And the elastic piece is elastically connected between the unidirectional teeth and the main shell and is used for elastically pressing the unidirectional teeth on the surface of the ratchet wheel.
3. The integrated explosion-proof skid-mounted hydrogen pressurizing or depressurizing quantitative conveying system according to claim 1, wherein a hanging shaft is horizontally arranged at the top of the wheel frame in a penetrating mode, a locking structure is rotatably sleeved on the hanging shaft, the locking structure is sleeved outside a tension belt, a plurality of metal rings are fixedly connected to the tension belt at equal intervals, and the locking structure locks the tension belt by penetrating through the metal rings.
4. The hydrogen pressurizing or depressurizing quantitative conveying system of an integral explosion-proof skid-mounted type as set forth in claim 3, wherein the locking structure comprises: the sleeve box is sleeved outside the tension belt, and one side of the sleeve box is fixedly connected with a stepped stud; The bolts penetrate through the sleeve box and are at least two, the bolts are used for penetrating through the metal ring, and one end of each bolt is fixedly connected with a permanent magnet; the protecting cover is fixedly connected to the other side of the sleeve box through a bolt and covers the bolt, and an electromagnet corresponding to the permanent magnet is fixedly connected to the inner wall of the protecting cover; The fixed base is buckled on one side of the sleeve box, the fixed base is sleeved outside the stepped stud and locked through the nut, one end of the fixed base is provided with a ferrule in an extending mode, and the ferrule is used for being sleeved outside the hanging shaft.
5. The integrated explosion-proof skid-mounted hydrogen pressurizing or depressurizing quantitative conveying system is characterized in that the depressurizing energy storage tank comprises a tank body, end covers are fixedly connected to the upper end and the lower end of the tank body, the tank body is cylindrical, a counterweight piston is arranged in the tank body in a sliding mode, a hanging ring is fixedly connected to the top of the counterweight piston, one end of a tension belt is fixedly sleeved outside the hanging ring, a pulley block is fixedly connected to the top of the end cover, the tension belt is erected on a pulley block, a distance sensor used for detecting the height of the counterweight piston is fixedly connected to the end covers, a plurality of groups of air inlet pipe openings and air outlet pipe openings are respectively formed in the bottoms of two sides of the tank body, the air inlet pipe openings of the tank body are connected in parallel through parallel connection input pipelines and electric three-way valves, one ends of the parallel connection input pipelines are communicated with an air outlet valve of the hydrogen storage tank, the other ends of the parallel connection input pipelines are sealed, one ends of the plurality of groups of air outlet pipe openings of the tank body are connected in parallel through parallel connection output pipelines, one ends of the parallel connection output pipelines are sealed, and the parallel connection output pipelines are connected in series with a second electric valve close to the parallel connection opening ends of each group of air outlet pipe opening.
6. The system of claim 5, wherein the pressure-reducing energy storage tank and the rolling energy release device are fixedly connected in the explosion-proof skid-mounted box through a bottom plate at the bottom, and a bracket for supporting parallel output pipelines is fixedly connected to the top of the bottom plate.
7. The integrated explosion-proof skid-mounted hydrogen pressurizing or depressurizing quantitative conveying system according to claim 1, wherein a support is fixedly connected inside the explosion-proof skid-mounted box and located outside a compressor, a filtering device and a cooling device are mounted on the support, an air inlet end and an air outlet end of the compressor are respectively communicated with the filtering device and the cooling device through an exhaust pipe and an air outlet pipe, an air outlet end of the cooling device is communicated with an air inlet valve of a hydrogen storage tank through an input pipe, the hydrogen storage tank is provided with one or more groups, an air outlet valve and an air inlet valve of adjacent hydrogen storage tanks are communicated through a transfer pipe, and a first electric valve is connected in series on the transfer pipe.
8. The integrated explosion-proof skid-mounted hydrogen pressurizing or depressurizing quantitative conveying system as claimed in claim 7, wherein: the filtering device includes: The top of the filter box is fixedly connected with a box cover through a bolt; A filter plate, wherein a plurality of layers are arranged in the filter box; The air inlet pipe cover is fixedly connected to the bottom of the rear side of the filter box and positioned below the filter plate at the lowest layer, and is used for being connected with a hydrogen source; The air outlet pipe cover is fixedly connected to the top of the front side of the filter box and is positioned above the filter plate at the uppermost layer and used for being communicated with the exhaust pipe.
9. The system of claim 8, wherein the rear side of the filter box is provided with a slot and a pumping slot corresponding to the uppermost layer and the lowermost layer of filter plates respectively, the rear side of the filter box is fixedly connected with a plurality of studs, the outer part of each stud is sleeved with a sealing plate for sealing the slot and the pumping slot, and one end of each stud penetrating the sealing plate is connected with a manual screw sleeve in a threaded manner.
10. The integrated explosion-proof skid-mounted hydrogen pressurizing or depressurizing quantitative conveying system according to claim 8, wherein the filter plate comprises a frame and a filter screen fixedly connected with the frame, a plurality of balls are rotatably connected to the bottom of the frame, and a raised edge is arranged on the top of the frame in an extending manner and used for enabling a buffer space to be reserved between two adjacent layers of filter screens.

Description

Integral explosion-proof skid-mounted hydrogen supercharging or decompression quantitative conveying system Technical Field The invention relates to the technical field of hydrogen transportation and storage, in particular to an integral explosion-proof skid-mounted hydrogen pressurization or depressurization quantitative conveying system. Background The hydrogen storing and releasing process includes high pressure gaseous hydrogen storing to compress hydrogen into high pressure container, low temperature liquefying to change hydrogen into liquid state for storing, and solid hydrogen storing to adsorb hydrogen with metal hydride and other material. During release, the high-pressure gaseous hydrogen is depressurized through the depressurization valve to enable the hydrogen to flow out, the liquid hydrogen is released after being heated and gasified, and the solid hydrogen is desorbed from the hydrogen storage material through heating or depressurization and the like for subsequent use. The publication number CN117212686A discloses a system for automatically storing and releasing hydrogen, which comprises a compressor, a temperature control pipeline, a solid hydrogen storage unit and a hydrogen release main line which are sequentially communicated, wherein the temperature control pipeline comprises a hydrogen storage main line and a hydrogen supply main line which are arranged in parallel, the temperature control pipeline is provided with a first working state and a second working state which can be mutually switched, a pressure-increasing hydrogen outlet of the compressor is communicated with an inlet of the solid hydrogen storage unit through the hydrogen storage main line in the first working state, a pressure-increasing hydrogen outlet of the compressor is communicated with an inlet of the solid hydrogen storage unit through the hydrogen supply main line in the second working state, a hydrogen outlet to be released of the solid hydrogen storage unit is communicated with an inlet of the hydrogen release main line, and the solid hydrogen storage unit comprises a plurality of solid hydrogen storage tanks filled with solid hydrogen storage materials. The flexible storage and release of hydrogen can be realized, the hydrogen storage density is high, the hydrogen supply pressure is stable, and the occupied area of the hydrogen storage equipment is greatly reduced. As shown in the above technology, the existing hydrogen storage and release system generally stores compressed hydrogen, releases the compressed hydrogen under reduced pressure when the system needs to be used, and the reduced pressure generally directly passes through a pressure reducing valve, so that the compressor does more work when the system is compressed, a large amount of potential energy is stored in the hydrogen, and the direct release is more wasteful, so that the system is beneficial to reducing the operation cost of enterprises if the energy of the system can be reasonably utilized. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an integral explosion-proof skid-mounted hydrogen pressurizing or depressurizing quantitative conveying system, which solves the problems in the prior art. The invention aims at realizing the technical scheme that the integral explosion-proof skid-mounted hydrogen pressurization or depressurization quantitative conveying system comprises an explosion-proof skid box and a hydrogen conveying system arranged in the explosion-proof skid-mounted hydrogen pressurization or depressurization quantitative conveying system, wherein the hydrogen conveying system comprises a compressor, a hydrogen storage tank and a depressurization energy storage mechanism, the compressor is used for pressurizing and storing hydrogen into the hydrogen storage tank, the hydrogen storage tank is used for depressurization and outputting hydrogen through the depressurization energy storage mechanism, the depressurization energy storage mechanism is used for converting the pressure of released high-pressure hydrogen into gravitational potential energy for storage, and the depressurization energy storage mechanism is divided into a plurality of groups which are arranged in parallel and comprises: The pressure-reducing energy storage tank utilizes the high-pressure hydrogen to push up a counterweight piston in the pressure-reducing energy storage tank so as to store gravitational potential energy, and the top of the counterweight piston is connected with a tension belt; The winding energy release device is arranged on one side of the decompression energy storage tank and used for connecting the other end of the tension belt and winding, the winding energy release device comprises a wheel frame, a hollow shaft is rotationally connected to the inside of the wheel frame, the surface of the hollow shaft is fixedly connected with a winding wheel which is positioned on the inner side of the wheel frame, a spring b