CN204554356U

CN204554356U - The anti-overfilling control gear of a kind of LNG horizontal gas bottle

Info

Publication number: CN204554356U
Application number: CN201520197992.1U
Authority: CN
Inventors: 赵国椿; 王伟; 张晓梅
Original assignee: Sunshine Industrial Car Assessories Co Ltd
Current assignee: RIZHAO XINGYE AUTO PARTS Co.,Ltd.
Priority date: 2015-04-02
Filing date: 2015-04-02
Publication date: 2015-08-12
Anticipated expiration: 2025-04-02

Abstract

The utility model discloses the anti-overfilling control gear of a kind of LNG horizontal gas bottle, comprise the reserved inner bag being arranged on LNG storage tank inside, the top of described reserved inner bag and bottom are respectively arranged with class L-type inner bag liquid inlet pipe and movable switch, the switch base that described movable switch comprises hollow and the cross bar be positioned at bottom described switch base, the diameter of the inner one end near described cross bar of described switch base is greater than the diameter of the one end away from described cross bar, further, the inner and top being positioned at described cross bar of described switch base coordinates and is provided with float.The beneficial effects of the utility model: by arranging reserved inner bag and arranging class L-type inner bag liquid inlet pipe and movable switch respectively on the top of reserved inner bag and bottom, can the LNG liquid level in LNG storage tank automatically stop filling when reaching inner bag liquid inlet pipe, fill rear LNG and entered reserved inner bag by inner bag liquid inlet pipe until liquid level drops to inner bag liquid inlet pipe place, now have enough safety spaces to guarantee the safe handling of LNG storage tank in reserved inner bag.

Description

The anti-overfilling control gear of a kind of LNG horizontal gas bottle

Technical field

The utility model relates to low-temperature pressure container and LNG Liquefied natural gas application, specifically, relates to the anti-overfilling control gear of a kind of LNG horizontal gas bottle.

Background technique

When current energy source is day by day nervous, huge, clean, the efficient rock gas of reserves has become the energy most with prospects after oil and industrial chemicals.LNG car bottle is as device automobile storing LNG Liquefied natural gas, its Safety performance becomes to attach most importance to consideration object, when LNG car bottle is when filling LNG Liquefied natural gas, often easily be full of liquid by whole bottle, 100% is full of pressure can be caused to raise fast, produces serious safety problem, in order to avoid the generation of security incident, need a kind of device to prevent LNG car bottle from occurring overcharging, retain the meteorological spatial of 8% ~ 10%.But cannot determine whether to leave sufficient space in the process that the anti-overfilling control gear of LNG horizontal gas bottle in the market constantly changes at pressure of the inside of a bottle, safety and stability cannot meet user demand.

So, develop and a kind ofly can ensure when filling to leave enough headspaces, and when overpressure the anti-overfilling control gear of the LNG horizontal gas bottle of exhausting air, just become the problem that Professional visitors needs solution badly.

Model utility content

In filling process, the problem of the device of bottle internal air pressure can be controlled in real time for shortage in the market above-mentioned in correlation technique, the utility model proposes the anti-overfilling control gear of a kind of LNG horizontal gas bottle, can ensure when filling to leave enough gas-phase spaces, simultaneously when expansion of liquids, all the time gas-phase space is left at the top of air cylinder, when enabling overpressure, safety valve exhausting air, substantially increases the safety and stability of LNG storage tank.

For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that

The anti-overfilling control gear of a kind of LNG horizontal gas bottle, comprise the reserved inner bag being arranged on LNG storage tank inside, the top of described reserved inner bag and bottom are respectively arranged with class L-type inner bag liquid inlet pipe and movable switch, wherein, the switch base that described movable switch comprises hollow and the cross bar be positioned at bottom described switch base, the diameter of the inner one end near described cross bar of described switch base is greater than the diameter of the one end away from described cross bar, further, the inner and top being positioned at described cross bar of described switch base coordinates and is provided with float.

Further, described reserved inner bag is positioned on the inside axis of described LNG storage tank.

Further, the top of described inner bag liquid inlet pipe is positioned at the inner tip of described LNG storage tank.

Further, the proportion of described float is lower than the proportion of LNG.

The beneficial effects of the utility model: by arranging reserved inner bag and arranging class L-type inner bag liquid inlet pipe and movable switch respectively on the top of reserved inner bag and bottom, the liquid outlet on reserved inner bag can be closed when filling, when the LNG liquid level in LNG storage tank reaches inner bag liquid inlet pipe, the pressure in LNG storage tank is increased rapidly, thus automatically stop in the completed filling, fill rear LNG and can enter reserved inner bag by inner bag liquid inlet pipe until liquid level drops to inner bag liquid inlet pipe place gradually, now reserved inner bag still has enough safety spaces to guarantee the safe handling of LNG storage tank, this device substantially increases the safety and stability of LNG storage tank.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the anti-overfilling control gear of LNG horizontal gas bottle according to the utility model embodiment;

Fig. 2 is the sectional drawing of the movable switch of the anti-overfilling control gear of LNG horizontal gas bottle according to the utility model embodiment.

In figure:

1, LNG storage tank; 2, reserved inner bag; 3, inner bag liquid inlet pipe; 4, movable switch; 5, liquid entering hole; 6, switch base; 7, cross bar; 8, float.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain, belong to the scope of the utility model protection.

As shown in Figure 1-2, the anti-overfilling control gear of a kind of LNG horizontal gas bottle according to embodiment of the present utility model, comprise the reserved inner bag 2 being arranged on LNG storage tank 1 inside, the top of described reserved inner bag 2 and bottom are respectively arranged with class L-type inner bag liquid inlet pipe 3 and movable switch 4, wherein, the switch base 6 that described movable switch 4 comprises hollow and the cross bar 7 be positioned at bottom described switch base 6, the diameter of the inner one end near described cross bar 7 of described switch base 6 is greater than the diameter of the one end away from described cross bar 7, and, inner and the top being positioned at described cross bar 7 of described switch base 6 coordinates and is provided with float 8.

In one embodiment, described reserved inner bag 2 is positioned on the inside axis of described LNG storage tank 1.

In one embodiment, the top of described inner bag liquid inlet pipe 3 is positioned at the inner tip of described LNG storage tank 1.

In one embodiment, the proportion of described float 8 is lower than the proportion of LNG.

Conveniently understand technique scheme of the present utility model, below by way of in concrete usage mode, technique scheme of the present utility model is described in detail.

When specifically using, the float 8 of proportion lower than LNG is placed with in movable switch 4, this float 8 coordinates with switch base 6 and controls the closed of movable switch 4 or open, described float 8 can adopt ball float, also ellipse or other shapes can be adopted, as long as the size of switch base 6 is mated with float 8, and constraint float 8 makes it move up and down, and guarantees that the liquid level that float 8 contacts with switch base 6 is constant.When filling, liquid entering hole 5 place in LNG storage tank 1 pours LNG, and when liquid level exceedes movable switch 4, float 8 rises under the effect of buoyancy, simultaneously because the kinetic energy promotion float 8 of flow of fluid makes liquid outlet close; LNG storage tank 1 is in use when liquid level is lower than movable switch 4, and float 8 sinks under gravity, and liquid outlet is opened.During LNG storage tank 1 liquid feeding, fill when liquid level reaches inner bag liquid inlet pipe 3, inner bag liquid inlet pipe 3 due to aperture less, the liquid flowing into headspace is little, now pressure can increase rapidly, liquid feeding can stop automatically, has filled rear LNG and can enter reserved inner bag 2 until liquid level drops to into inner bag liquid inlet pipe 3 by inner bag liquid inlet pipe 3 gradually, and now reserved inner bag 2 also has enough safety spaces to guarantee the safe handling of LNG storage tank.

In sum, by means of technique scheme of the present utility model, by arranging reserved inner bag 2 and arranging class L-type inner bag liquid inlet pipe 3 and movable switch 4 on the top of reserved inner bag 2 and bottom respectively, the liquid outlet on reserved inner bag 2 can be closed when filling, when the LNG liquid level in LNG storage tank 1 reaches inner bag liquid inlet pipe 3, the pressure in LNG storage tank 1 is increased rapidly, thus automatically stop after having filled, fill rear LNG and can enter reserved inner bag 2 until liquid level drops to inner bag liquid inlet pipe place 3 by inner bag liquid inlet pipe 3 gradually, now reserved inner bag 2 still has enough safety spaces to guarantee the safe handling of LNG storage tank 1, this device substantially increases the safety and stability of LNG storage tank 1.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1. the anti-overfilling control gear of LNG horizontal gas bottle, it is characterized in that, comprise and be arranged on the inner reserved inner bag (2) of LNG storage tank (1), the top of described reserved inner bag (2) and bottom are respectively arranged with class L-type inner bag liquid inlet pipe (3) and movable switch (4), wherein, described movable switch (4) comprises the switch base (6) of hollow and is positioned at the cross bar (7) of described switch base (6) bottom, the diameter of the inner one end near described cross bar (7) of described switch base (6) is greater than the diameter of the one end away from described cross bar (7), and, inner and the top being positioned at described cross bar (7) of described switch base (6) coordinates and is provided with float (8).

2. the anti-overfilling control gear of LNG horizontal gas bottle according to claim 1, is characterized in that, described reserved inner bag (2) is positioned on the inside axis of described LNG storage tank (1).

3. the anti-overfilling control gear of LNG horizontal gas bottle according to claim 2, is characterized in that, the top of described inner bag liquid inlet pipe (3) is positioned at the inner tip of described LNG storage tank (1).

4. the anti-overfilling control gear of LNG horizontal gas bottle according to claim 1, is characterized in that, the proportion of described float (8) is lower than the proportion of LNG.