CN213394607U

CN213394607U - Natural gas storage tank

Info

Publication number: CN213394607U
Application number: CN202020832614.7U
Authority: CN
Inventors: 杨艮珠; 柯杰方
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-06-08
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a natural gas storage tank, its structure includes the gas holder, restrains band, guardrail, base, dead lever, the gas holder side with restrain the band interference fit, guardrail side and gas holder side pipe connection, the utility model discloses an adjuster and main relief valve connection are in operating condition at the gas holder, and inside liquefied natural gas truns into the gaseous state, and when pressure reached main relief valve release value, collect the natural gas and store in the adjuster, when atmospheric pressure in the adjuster inner bag reached the backward flow valve threshold value, through the back flow with the reuse in the leading-in gas holder of natural gas, avoid leaking the excessive pressure's natural gas because of the ascending main relief valve of gas holder pressure, cause the natural gas extravagant, lead to economic loss.

Description

Natural gas storage tank

Technical Field

The utility model relates to a natural gas field, specific is a natural gas storage tank.

Background

The natural gas storage tank has multiple purposes, wherein the natural gas storage tank for the vehicle is a high-vacuum heat insulation container for storing liquefied natural gas on the vehicle, a double-layer (vacuum) structure is designed, the inner container is used for storing low-temperature liquefied LNG, a plurality of layers of heat insulation materials are wound on the outer wall of the inner container, the natural gas storage tank has super-strong heat insulation performance, meanwhile, a jacket (a space between two layers of containers) is pumped into high vacuum, a good heat insulation system is formed together, and the design of the outer shell and the supporting system can bear relevant external force generated when a transport vehicle runs, but the pressure of the storage tank rises when the general natural gas storage tank for the vehicle works, so that the safety valve can be automatically opened to leak the over-pressurized natural gas to ensure the.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a natural gas storage tank.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a natural gas storage tank structurally comprises a gas storage tank, a restraint belt, a guardrail, a base and a fixed rod, wherein the side face of the gas storage tank is in interference fit with the restraint belt, the side face of the guardrail is connected with a pipeline on the side face of the gas storage tank, the top of the base is installed with a bolt at the bottom of the gas storage tank, and the top of the fixed rod is movably clamped with the tail end of the restraint belt;

the guardrail is equipped with sealing washer, air inlet, regulator, inner bag, reflux valve, back flow, the sealing washer is installed with the back flow laminating, air inlet and the cooperation of inner bag inner wall perforation, regulator and guardrail welded connection, inner bag and regulator clearance fit, the reflux valve is connected with back flow flange, back flow top and regulator bottom pipe connection.

Furthermore, the gas storage tank is provided with an auxiliary safety valve, a gas cylinder pressure gauge, a flow passing valve, a stop valve, a liquid inlet valve, a main safety valve and an emptying stop valve, the auxiliary safety valve is connected with a side face flange of the gas storage tank, the gas cylinder pressure gauge is connected with a side face pipeline of the gas storage tank, the flow passing valve is connected with a side face flange of the gas storage tank, the stop valve is connected with a flow passing valve pipeline, the liquid inlet valve is connected with a side face flange of the gas storage tank, and the bottom of the main safety valve is.

Furthermore, the sealing ring is connected with the bottom of the air storage tank in an airtight mode, the air inlet is matched with the regulator through a hole, and the backflow valve is connected with the liner flange through a backflow pipe.

Furthermore, the return valve is connected with the air storage tank pipeline through a return pipe.

Furthermore, the main safety valve is connected with a side flange of the regulator.

Advantageous effects

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a regulator is connected with main relief valve, is in operating condition at the gas holder, and inside liquefied natural gas truns into the gaseous state into, and when pressure reached main relief valve release value, collect the natural gas and store in the regulator, when atmospheric pressure in the regulator inner bag reached the backward flow valve threshold value, through the back flow with the reuse in the leading-in gas holder of natural gas, avoid leaking the natural gas of excessive pressure because of the ascending main relief valve of gas holder pressure, cause the natural gas extravagant, lead to economic loss.

Drawings

Fig. 1 is a schematic structural diagram of a natural gas storage tank of the present invention.

Fig. 2 is a schematic structural diagram of the regulator of the present invention.

Fig. 3 is a schematic side view of the natural gas storage tank of the present invention.

In the figure: the air storage tank comprises an air storage tank 1, a restraint strap 2, a guardrail 3, a base 4, a fixing rod 5, a sealing ring s1, an air inlet s2, a regulator s3, a liner s4, a return valve s5, a return pipe s6, an auxiliary safety valve f1, an air bottle pressure gauge f2, a flow passing valve f3, a stop valve f4, an air inlet valve f5, a main safety valve f6 and an emptying stop valve f 7.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments, not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Examples

As shown in fig. 1-3, the utility model provides a natural gas storage tank, its structure includes gas holder 1, restraint area 2, guardrail 3, base 4, dead lever 5, the side of gas holder 1 and restraint area 2 interference fit, the side of guardrail 3 and gas holder 1 side pipe connection, base 4 top and 1 bottom bolt installation of gas holder, 5 top and the 2 tail end activity block of restraint area of dead lever, guardrail 3 is equipped with sealing washer s1, air inlet s2, regulator s3, inner bag s4, reflux valve s5, back flow s6, sealing washer s1 and back flow s6 laminating installation, air inlet s2 and inner bag s4 inner wall perforation fit, regulator s3 and guardrail 3 welded connection, inner bag s4 and regulator s3 clearance fit, back flow valve s5 and back flow s6 flange joint, back flow s 39 6 top and regulator s3 bottom pipe connection, the gas storage tank 1 is provided with an auxiliary safety valve f1, a gas cylinder pressure gauge f2, a flow passing valve f3, a stop valve f4, a liquid inlet valve f5, a main safety valve f6 and an emptying stop valve f7, the auxiliary safety valve f1 is connected with the flange at the side of the gas storage tank 1, the gas cylinder pressure gauge f2 is connected with the pipeline at the side of the gas storage tank 1, the overflowing valve f3 is connected with the side flange of the air storage tank 1, the stop valve f4 is connected with the overflowing valve f3 through a pipeline, the liquid inlet valve f5 is connected with the flange on the side surface of the gas storage tank 1, the bottom of the main safety valve f6 is connected with the pipeline at the upper end of the emptying stop valve f7, the sealing ring s1 is hermetically connected with the bottom of the air storage tank 1, the air inlet s2 is in perforation fit with the regulator s3, the return valve s5 is flanged with the inner container s4 through a return pipe s6, the return valve s5 is connected with the air storage tank 1 through a return pipe s6, and the main safety valve f6 is flanged with the side surface of the regulator s 3.

The working principle of the present invention is explained as follows: the utility model discloses operating personnel begins work, make the inside liquefied natural gas of gas holder 1 change gaseous output along excessive flow valve f3 direction, the inside pressure boost of gas holder 1 keeps the natural gas to supply, if the natural gas surpasses the threshold value, main relief valve f6 is opened automatically and is released the superpressure natural gas, the superpressure natural gas gets into through air inlet s2 and stores in regulator s3, if inside atmospheric pressure of regulator s3 reachs inner bag s4 and holds the threshold value, vice relief valve f1 is opened automatically and is released the natural gas, avoid inner bag s4 superpressure to lead to the blowout, after working a period of time, the inside atmospheric pressure of gas holder 1 reduces and makes inside capacity improve, regulator s3 inside natural gas will pass through backflow valve s5 along backflow pipe s6, carry out the natural gas replenishment to gas holder 1, if the inside natural gas of gas holder 1 exhausts, need to detect evacuation stop valve f7, carry out the natural gas injection to gas feed liquor, the regulator s3 can retrieve the exhaust natural gas of main relief valve f6 to inject the natural gas of backward flow into gas holder 1, avoid causing the natural gas extravagant, lead to economic loss.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A natural gas storage tank, characterized by: the structure of the air storage tank comprises an air storage tank (1), a restraint strap (2), a guardrail (3), a base (4) and a fixing rod (5), wherein the side surface of the air storage tank (1) is in interference fit with the restraint strap (2), the side surface of the guardrail (3) is connected with a side surface pipeline of the air storage tank (1), the top of the base (4) is installed on a bottom bolt of the air storage tank (1), and the top of the fixing rod (5) is movably clamped with the tail end of the restraint strap (2);

guardrail (3) are equipped with sealing washer (s1), air inlet (s2), regulator (s3), inner bag (s4), reflux valve (s5), back flow (s6), sealing washer (s1) and back flow (s6) laminating installation, air inlet (s2) and inner bag (s4) inner wall perforation cooperation, regulator (s3) and guardrail (3) welded connection, inner bag (s4) and regulator (s3) clearance fit, reflux valve (s5) and back flow (s6) flange joint, back flow (s6) top and regulator (s3) bottom pipe connection.

2. A natural gas storage tank according to claim 1, wherein: the gas storage tank (1) is provided with an auxiliary safety valve (f1), a gas cylinder pressure gauge (f2), an overflow valve (f3), a stop valve (f4), a liquid inlet valve (f5), a main safety valve (f6) and a venting stop valve (f7), the auxiliary safety valve (f1) is in flange connection with the side face of the gas storage tank (1), the gas cylinder pressure gauge (f2) is in pipeline connection with the side face of the gas storage tank (1), the overflow valve (f3) is in flange connection with the side face of the gas storage tank (1), the stop valve (f4) is in pipeline connection with the overflow valve (f3), the liquid inlet valve (f5) is in flange connection with the side face of the gas storage tank (1), and the bottom of the main safety valve (f6) is in pipeline connection with the upper.

3. A natural gas storage tank according to claim 1, wherein: the sealing ring (s1) is connected with the bottom of the air storage tank (1) in an airtight mode, the air inlet (s2) is matched with the regulator (s3) in a penetrating mode, and the backflow valve (s5) is connected with the inner container (s4) through the backflow pipe (s6) in a flange mode.

4. A natural gas storage tank according to claim 1, wherein: the return valve (s5) is connected with the air storage tank (1) through a return pipe (s 6).

5. A natural gas storage tank according to claim 2, wherein: the main safety valve (f6) is connected with a side flange of the regulator (s 3).