CN218119379U

CN218119379U - Liquid nitrogen storage tank for LNG loading and unloading vehicle

Info

Publication number: CN218119379U
Application number: CN202221894210.6U
Authority: CN
Inventors: 汪坤
Original assignee: Hubei Jinsheng Natural Gas Co ltd
Current assignee: Hubei Jinsheng Natural Gas Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-23
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a liquid nitrogen storage tank for LNG loading and unloading vehicle, including the liquid nitrogen storage tank body, the fixed pressure release box that is provided with of one end of liquid nitrogen storage tank body, the fixed intercommunication in top of pressure release box has the pressure release pipe, and the one end that the pressure release box was kept away from to the pressure release pipe extends to the inside fixed mounting of liquid nitrogen storage tank body has the relief valve, and the middle part fixed mounting of pressure release pipe bottom has pressure switch, the utility model relates to a liquid nitrogen storage tank for LNG loading and unloading vehicle monitors the inside pressure of liquid nitrogen storage tank body through pressure switch, and when the numerical value that pressure switch monitored was greater than a certain setting value, can trigger pressure switch, controls the relief valve and opens, because the inside pressure of pressure release box is less than the inside pressure of liquid nitrogen storage tank body for the inside liquid nitrogen of liquid nitrogen storage tank body is leading-in to the pressure release box, comes to carry out the pressure release to the liquid nitrogen storage tank body and handles, avoids liquid nitrogen storage tank body inside pressure too high and then causes the liquid nitrogen storage tank body to explode.

Description

Liquid nitrogen storage tank for LNG loading and unloading vehicle

Technical Field

The utility model relates to a liquid nitrogen storage tank field specifically is a liquid nitrogen storage tank for LNG loading and unloading vehicle.

Background

The liquid nitrogen tank can be generally divided into a liquid nitrogen storage tank and a liquid nitrogen transport tank. The storage tank is mainly used for standing storage of indoor liquid nitrogen and is not suitable for long-distance transportation in a working state; the liquid nitrogen transport tank is specially designed to be shockproof in order to meet the transport conditions. It can not only stand and store, still can be under filling liquid nitrogen state, transport use, but also should avoid violent collision and vibrations, and current liquid nitrogen container can appear unable when liquid nitrogen storage tank inside pressure is greater than the standard value when using, comes to carry out timely pressure release to the liquid nitrogen storage tank and handles, leads to liquid nitrogen storage tank internal pressure too high and then causes the liquid nitrogen storage tank to appear exploding to and the liquid nitrogen storage tank body is receiving the damage easily to appear when striking.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid nitrogen storage tank for LNG loading and unloading to when solving the unable inside pressure of liquid nitrogen storage tank that proposes in the above-mentioned background art and being greater than the standard value, come to carry out timely pressure release to the liquid nitrogen storage tank and handle, lead to liquid nitrogen storage tank internal pressure too high and then cause the liquid nitrogen storage tank to explode, and the problem of damage easily appears when receiving the striking to the liquid nitrogen storage tank body.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a liquid nitrogen storage tank for LNG loading and unloading vehicle, includes the liquid nitrogen storage tank body, the fixed pressure release box that is provided with of one end of liquid nitrogen storage tank body, the fixed intercommunication in top of pressure release box has the pressure release pipe, the one end that the pressure release box was kept away from to the pressure release pipe extends to the inside fixed mounting of liquid nitrogen storage tank body has the relief valve, the middle part fixed mounting of pressure release pipe bottom has pressure switch, the fixed surface of liquid nitrogen storage tank body is provided with the protection pad, the fixed surface that protects the pad is provided with protective assembly, protective assembly includes first collar, a plurality of fender rod and second collar, the fixed fender rod that is provided with a plurality of evenly distributed between first collar and the second collar, the fixed buffering subassembly that is provided with a plurality of evenly distributed in inside of liquid nitrogen storage tank body monitors the pressure inside of liquid nitrogen storage tank body through pressure switch, when pressure switch's numerical value is greater than a certain setting value, can trigger pressure switch, controls to open, because the inside pressure of pressure release box is less than the inside pressure of liquid nitrogen storage tank body for the inside of liquid nitrogen storage tank body is leading-in the storage tank body to the pressure release box, comes to carry out the pressure release body, and then avoids liquid nitrogen storage tank body inside to cause the liquid nitrogen storage tank to explode the liquid nitrogen storage tank body the high pressure to appear.

Preferably, a plurality of buffering subassembly all includes solid fixed ring and a plurality of buffer beam, gu fixed ring's inboard is fixed and is provided with a plurality of buffer beam, can play the effect of buffering reposition of redundant personnel to the liquid nitrogen through setting up of a plurality of buffer beam, slows down the impact of liquid nitrogen to liquid nitrogen storage tank body inner wall.

Preferably, the pressure relief valve is electrically connected with the vehicle-mounted power supply through a pressure switch, and the pressure inside the liquid nitrogen storage tank body is monitored through the pressure switch.

Preferably, the first mounting ring, the plurality of protective rods and the second mounting ring are all made of stainless steel materials, and the stainless steel materials are high in hardness, not prone to deformation and good in protective effect.

Preferably, the sealing ring is fixedly arranged at the joint of the liquid nitrogen storage tank body and the pressure relief pipe, the sealing performance of the liquid nitrogen storage tank body can be improved due to the arrangement of the sealing ring, and liquid nitrogen leakage of the liquid nitrogen storage tank body in use is avoided.

Preferably, the internal pressure of the pressure relief box is smaller than the internal pressure of the liquid nitrogen storage tank body, so that liquid nitrogen in the liquid nitrogen storage tank body can be conveniently guided into the pressure relief box.

Compared with the prior art, the beneficial effects of the utility model are that: come to monitor the inside pressure of liquid nitrogen storage tank body through pressure switch, numerical value when pressure switch monitors is greater than a certain setting value, can trigger pressure switch, it opens to control the relief valve, because the internal pressure of pressure release box is less than the internal pressure of liquid nitrogen storage tank body, make the leading-in pressure release box of the inside liquid nitrogen of liquid nitrogen storage tank body, come to carry out the pressure release to the liquid nitrogen storage tank body and handle, avoid liquid nitrogen storage tank body internal pressure too high and then cause the liquid nitrogen storage tank body to appear the explosion, fill up through the protection, first collar, the cooperation setting of a plurality of fender rod and second collar can play the effect of strengthening the protection to the liquid nitrogen storage tank body, avoid the liquid nitrogen storage tank body to receive the striking and lead to the liquid nitrogen storage tank body to easily appear the damage in the use.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a front sectional view of the present invention;

FIG. 3 is a structural diagram of the cushion assembly of the present invention;

FIG. 4 is a structural diagram of the protective assembly of the present invention;

fig. 5 is an enlarged view of a part a of the present invention.

In the figure: 1. a liquid nitrogen storage tank body; 2. a guard assembly; 21. a first mounting ring; 22. a guard bar; 23. a second mounting ring; 3. a pressure relief box; 4. a pressure relief pipe; 5. a buffer assembly; 51. a fixing ring; 52. a buffer rod; 6. a protective pad; 7. a pressure relief valve; 8. a pressure switch; 9. and (5) sealing rings.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Please refer to fig. 1-5, the utility model provides a liquid nitrogen storage tank for LNG loading and unloading, including liquid nitrogen storage tank body 1, the fixed pressure release box 3 that is provided with of one end of liquid nitrogen storage tank body 1, the fixed intercommunication in top of pressure release box 3 has pressure release pipe 4, the inside fixed mounting that pressure release pipe 4 keeps away from pressure release box 3 extends to liquid nitrogen storage tank body 1 has relief valve 7, the middle part fixed mounting of pressure release pipe 4 bottom has pressure switch 8, liquid nitrogen storage tank body 1's fixed surface is provided with protection pad 6, the fixed surface of protection pad 6 is provided with protection component 2, protection component 2 includes first collar 21, a plurality of 22 and second collar 23, the fixed guard bar 22 that is provided with a plurality of evenly distributed between first collar 21 and the second collar 23, the fixed buffer 5 that is provided with a plurality of evenly distributed in the inside of liquid nitrogen storage tank body 1 that is provided with through pressure switch 8, when numerical value that pressure switch 8 monitored is greater than a certain setting value, can trigger pressure switch 8, control the pressure release valve 7 to open because the inside of pressure release box 3 is less than the pressure release box of liquid nitrogen storage tank body, make liquid nitrogen storage tank body 1 carry out the leading-in the liquid nitrogen storage tank body 1 and avoid liquid nitrogen storage tank body 1 to the pressure to the internal high pressure of liquid nitrogen storage tank to the internal pressure processing to appear in liquid nitrogen storage tank, the leading-over.

A plurality of buffer unit 5 all includes solid fixed ring 51 and a plurality of buffer beam 52, and solid fixed ring 51's inboard is fixed and is provided with a plurality of buffer beam 52, can play the effect of buffering reposition of redundant personnel to the liquid nitrogen through the setting of a plurality of buffer beam 52, slows down the impact of liquid nitrogen to 1 inner wall of liquid nitrogen storage tank body.

The pressure release valve 7 is electrically connected with the vehicle-mounted power supply through the pressure switch 8, and the pressure inside the liquid nitrogen storage tank body 1 is monitored through the pressure switch 8.

The first mounting ring 21, the plurality of guard bars 22 and the second mounting ring 23 are all made of stainless steel materials, and the stainless steel materials are high in hardness, not prone to deformation and good in protection strengthening effect.

The fixed sealing washer 9 that is provided with of junction of liquid nitrogen storage tank body 1 and pressure release pipe 4, the setting of sealing washer 9 can improve the sealing performance of liquid nitrogen storage tank body 1, avoids liquid nitrogen leakage to appear in liquid nitrogen storage tank body 1 when using.

The internal pressure of pressure release box 3 is less than the internal pressure of liquid nitrogen storage tank body 1, is convenient for leading-in the pressure release box 3 with the inside liquid nitrogen of liquid nitrogen storage tank body 1.

When the embodiment of the application is used: come to monitor the inside pressure of liquid nitrogen storage tank body 1 through pressure switch 8, when the numerical value that pressure switch 8 monitored is greater than a certain setting value, can trigger pressure switch 8, control relief valve 7 and open, because the internal pressure of pressure release box 3 is less than the internal pressure of liquid nitrogen storage tank body 1, make the leading-in of liquid nitrogen in liquid nitrogen storage tank body 1 inside to pressure release box 3, come to carry out the pressure release processing to liquid nitrogen storage tank body 1, avoid liquid nitrogen storage tank body 1 internal pressure too high and then cause liquid nitrogen storage tank body 1 to appear exploding, internal pressure when liquid nitrogen storage tank body 1 reduces to a definite value, trigger pressure switch 8, come control relief valve 7 to close, come to stop the pressure release, in the use, through protection pad 6, first collar 21, the cooperation setting of a plurality of guard bars 22 and second collar 23 can play the effect of strengthening the protection to liquid nitrogen storage tank body 1, avoid liquid nitrogen storage tank body 1 receives the striking and leads to liquid nitrogen storage tank body 1 easily to appear the damage in the use, and can play the effect of shunting of buffering liquid nitrogen storage tank through the setting of a plurality of buffer bar 52, come to slow down the impact of liquid nitrogen storage tank body 1 inner wall.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a LNG liquid nitrogen storage tank for loading and unloading car, includes liquid nitrogen storage tank body (1), its characterized in that: the fixed pressure release box (3) that is provided with of one end of liquid nitrogen storage tank body (1), the fixed intercommunication in top of pressure release box (3) has pressure release pipe (4), the inside fixed mounting that the one end that pressure release box (3) were kept away from in pressure release pipe (4) extended to liquid nitrogen storage tank body (1) has relief valve (7), the middle part fixed mounting of pressure release pipe (4) bottom has pressure switch (8), the fixed surface of liquid nitrogen storage tank body (1) is provided with the protection and fills up (6), the fixed surface that the protection filled up (6) is provided with protective assembly (2), protective assembly (2) are including first collar (21), a plurality of guard bar (22) and second collar (23), fixed guard bar (22) that are provided with a plurality of evenly distributed between first collar (21) and second collar (23), the fixed buffer assembly (5) that are provided with a plurality of evenly distributed of liquid nitrogen storage tank body (1) in the inside fixed.

2. The liquid nitrogen storage tank for the LNG loading/unloading vehicle according to claim 1, wherein: a plurality of buffer unit (5) all includes solid fixed ring (51) and a plurality of buffer beam (52), the inboard of solid fixed ring (51) is fixed and is provided with a plurality of buffer beam (52).

3. The liquid nitrogen storage tank for the LNG loading/unloading vehicle according to claim 1, wherein: the pressure release valve (7) is electrically connected with the vehicle-mounted power supply through a pressure switch (8).

4. The liquid nitrogen storage tank for the LNG loading/unloading vehicle according to claim 1, wherein: the first mounting ring (21), the plurality of guard rods (22) and the second mounting ring (23) are all made of stainless steel materials.

5. The liquid nitrogen storage tank for the LNG handling vehicle according to claim 1, wherein: and a sealing ring (9) is fixedly arranged at the joint of the liquid nitrogen storage tank body (1) and the pressure relief pipe (4).

6. The liquid nitrogen storage tank for the LNG loading/unloading vehicle according to claim 1, wherein: the internal pressure of the pressure relief box (3) is smaller than that of the liquid nitrogen storage tank body (1).