Search

CN-224229745-U - End head diameter-reducing sealing structure for large-diameter fiber winding pipe of hydrogen storage tank

CN224229745UCN 224229745 UCN224229745 UCN 224229745UCN-224229745-U

Abstract

The utility model relates to the field of hydrogen storage tanks, in particular to an end head diameter-reducing sealing structure for a large-diameter fiber winding pipe of a hydrogen storage tank. The utility model provides the end head reducing sealing structure for the large-diameter fiber winding pipe of the hydrogen storage tank, which can be used for sealing and storing hydrogen, has the advantages that the conical ends are conical, the pressure contact area is large, leakage is prevented, and waste is reduced. The end reducing sealing structure for the large-diameter fiber winding pipe of the hydrogen storage tank comprises a shell, a conical end, a base and the like, wherein the conical end is connected to the left side and the right side of the shell, and the base is connected to the lower sides of the left part and the right part of the shell. According to the utility model, the rotary sealing valve is opened, so that hydrogen enters the conical end head, the shell and the inner cavity for storage, the sealing head is used for sealing, after sufficient hydrogen is filled, the rotary sealing valve is closed, and the conical end heads are conical, so that the hydrogen can be stored in a sealing way, and the conical end heads are conical, so that the stress at the end heads is reduced.

Inventors

  • WAN JIAN
  • TIAN LIBIN
  • YANG MINGKUN
  • LI YU
  • ZHANG MINGHU
  • WEI AIJUN

Assignees

  • 九江瑞钛氢能装备有限公司

Dates

Publication Date
20260512
Application Date
20250630

Claims (6)

  1. 1. The end reducing sealing structure for the large-diameter fiber winding pipe of the hydrogen storage tank is characterized by comprising a shell (1), conical ends (2), a base (3), a connecting flange (4), a screw (5), a fixing nut (6), a sealing valve (7), an explosion-proof valve (9), a sealing head (10), a sealing cover (11) and an inner cavity (13), wherein the connecting flange (4) on the left side and the right side of the shell (1) is detachably connected with the sealing cover (11) through the screw (5) and the fixing nut (6), the conical ends (2) are connected on the inner side of the connecting flange (4), the base (3) is connected with the connecting flange (4), the right part of the sealing cover (11) on the right part is connected with the explosion-proof valve (9), the right side of the explosion-proof valve (9) is detachably connected with the sealing valve (7), the inner side of the conical ends (2) is detachably connected with the sealing head (10), and the inner cavity (13) is connected between the conical ends (2).
  2. 2. The end head reducing sealing structure for the large-diameter fiber winding pipe of the hydrogen storage tank according to claim 1, wherein the inner cavity (13) is of a two-end diameter-collecting structure, and the outer shell (1) is made of glass fiber composite material or steel.
  3. 3. The end head reducing seal structure for a large diameter fiber winding tube of a hydrogen storage tank according to claim 1, wherein the base (3) is H-shaped.
  4. 4. The end head reducing seal structure for a large diameter fiber winding tube of a hydrogen storage tank according to claim 1, wherein the fixing nuts (6) are hexagonal.
  5. 5. The end head reducing sealing structure for the large-diameter fiber winding pipe of the hydrogen storage tank according to claim 1, further comprising a temperature sensor (8), wherein the front part and the rear part of the sealing head (10) are connected with the temperature sensor (8).
  6. 6. The end head reducing seal structure for a large diameter fiber winding pipe of a hydrogen storage tank according to claim 1, further comprising a steel wire (12), wherein the steel wire (12) is connected between the outer shell (1) and the inner cavity (13).

Description

End head diameter-reducing sealing structure for large-diameter fiber winding pipe of hydrogen storage tank Technical Field The utility model relates to the field of hydrogen storage tanks, in particular to an end head diameter-reducing sealing structure for a large-diameter fiber winding pipe of a hydrogen storage tank. Background Under the great background of the acceleration transformation of global energy structures, hydrogen energy is becoming more and more focused and valued as a clean, efficient and renewable energy carrier, the hydrogen energy has great application potential in various fields of transportation, electric power energy storage, distributed power generation and the like, and the performance and the safety of a hydrogen storage tank are directly related to the healthy development of the hydrogen energy industry as key equipment for storing and transporting the hydrogen energy. The existing hydrogen is stored, hydrogen is filled into a hydrogen storage tank and stored in a sealing mode, however, the pressure born by the two ends of the existing hydrogen storage tank is large, the end heads are of a round structure generally, the diameter is small, the pressure contact area is relatively small, the stress distribution is uneven, the leakage risk is increased, the hydrogen is wasted, and even potential safety hazards are brought. Therefore, the end reducing sealing structure for the large-diameter fiber winding pipe of the hydrogen storage tank needs to be designed to be capable of sealing and storing hydrogen, and the tapered ends are tapered, so that the pressure contact area is large, leakage is prevented, and waste is reduced. Disclosure of utility model In order to overcome the defects that the pressure born by two ends of the existing hydrogen storage tank is large, the pressure contact area is relatively small due to the fact that the ends are generally of round structures and the diameter is small, the stress distribution is uneven, the leakage risk is increased, the hydrogen is wasted, and even potential safety hazards are brought, the utility model provides the end diameter-reducing sealing structure for the large-diameter fiber winding pipe of the hydrogen storage tank, which can be used for sealing and storing the hydrogen, and is large in pressure contact area, capable of preventing leakage and reducing waste. A end undergauge seal structure for hydrogen storage jar major diameter fiber winding pipe, including the shell, the toper end, a pedestal, flange, the screw rod, fixation nut, sealing valve, explosion-proof valve, sealing head, sealed lid and interior cavity, flange on the shell left and right sides all is connected with sealed lid through screw rod and fixation nut dismantlement formula, flange inboard all is connected with the toper end, two portions downside all are connected with the base about the shell, the base all is connected with connecting flange, the sealed lid right part of right part is connected with explosion-proof valve, explosion-proof valve right side dismantlement formula is connected with sealing valve, the toper end inboard all is connected with sealing head, be connected with interior cavity between the toper end. Further, the shell is made of glass fiber composite material or steel. Further, the bases are all H-shaped. Further, the fixing nuts are hexagonal. Further, the sealing head also comprises a temperature sensor, and the front part and the rear part of the sealing head are connected with the temperature sensor. Further, the device also comprises a steel wire, and the steel wire is connected between the shell and the inner cavity. The utility model has the advantages that 1, the rotary sealing valve is opened, so that hydrogen enters the conical end head, the shell and the inner cavity for storage, the sealing head is used for sealing, after sufficient hydrogen is filled, the rotary sealing valve is closed, and the conical end heads are conical, so that the hydrogen can be stored in a sealing way, the conical end heads are conical, and the stress at the end heads is reduced. 2. When the internal pressure of the shell reaches a set threshold value, the explosion-proof valve can quickly respond and open, so that the medium is allowed to be discharged quickly, the internal pressure is reduced, and the pressure relief is realized, so that the pressure relief can be automatically carried out when the pressure is high, the rupture or explosion is prevented, and the use safety is improved. Drawings Fig. 1 is a schematic perspective view of the present utility model. Fig. 2 is a schematic perspective view of the sealing valve and other components of the present utility model. Fig. 3 is a schematic perspective view of the sealing cover and the steel wire. Fig. 4 is a schematic perspective view of the housing and the inner cavity of the present utility model. Fig. 5 is a schematic perspective view of the sealing valve and the sealing head of the prese