CN203757365U

CN203757365U - Vacuum valve group box of LNG (Liquefied Natural Gas) liquid adding machine

Info

Publication number: CN203757365U
Application number: CN201420101073.5U
Authority: CN
Inventors: 师东平; 师立波; 沈江; 张亚斐; 陈瑜
Original assignee: Suzhou Toway Engineering & Equipment Co Ltd
Current assignee: Suzhou Toway Engineering & Equipment Co Ltd
Priority date: 2014-03-07
Filing date: 2014-03-07
Publication date: 2014-08-06
Anticipated expiration: 2024-03-07

Abstract

The utility model discloses a vacuum valve group box of an LNG (Liquefied Natural Gas) liquid adding machine. The vacuum valve group box of the LNG liquid adding machine comprises a box body, wherein the box body is internally provided with a pipeline and a valve, and the pipeline is connected with a maintenance pipe which extends out of the box body; the vacuum valve group box is characterized in that the box body is of a vacuum seal structure, the box body is internally provided with an interlayer, and the inner wall of the interlayer is of a multi-layer structure which is made of a thermal insulation material; the inner wall of the interlayer and the outer wall of the box body can form a sealed vacuum cavity, the vacuum cavity is fully filled with pearlife, the pipeline and the valve are arranged in the vacuum cavity, and are coated with n anti-radiation materials in a winding manner. The vacuum valve group box provided by the utility model has the advantages that a box body structure is utilized, the pipeline and the valve are concentrated together, the interior space of the liquid adding machine is rationally utilized, the heat preservation space is enlarged, the multi-layer structure is adopted, the interlayer is formed by the combination of multilayer heat insulation and the heat insulation by, a vacuum state is kept through the advanced anti-radiation material, the cold loss is controlled to be minimum, and the requirement on heat preservation of the added liquid of the LNG liquid adding machine is met.

Description

LNG liquid filler vacuum valve block

Technical field

The utility model belongs to LNG Liquefied natural gas applied technical field, is specifically related to a kind of LNG liquid filler vacuum valve block.

Background technique

Develop rapidly with more than 10% speed every year as main large-scale industrial gas market taking liquefied gas at low temp such as LNG Liquefied natural gas.The conveying of these cryogenic liquides in use region mainly undertaken by low temperature Stainless Steel Tube pipe, be subject to the restriction of the installing space of liquid filler own, vacuum pipe length and the specification that can do are limited, and control valve in liquid filler also needs to do insulation, this just requires very high to the interior layout of liquid filler, at present reduce cold damage amount in liquid filler inside by the mode that pipeline and valve are incubated piecemeal, it is that the cold damage amount of pipeline is larger that such structure causes defect, easily frosting, long-term use meeting causes damage to liquid filler inside.Cause reason to be because liquid filler inner space is less, vacuum heat-preserving is higher to size requirement.

Model utility content

The purpose of this utility model is to provide a kind of high insulating effect, fully meets the LNG liquid filler vacuum valve block that the insulation of liquid filler liquid feeding requires.

For realizing above-mentioned model utility object, the utility model has adopted following technological scheme:

A kind of LNG liquid filler vacuum valve block, comprise casing, in casing, be provided with pipeline and valve, described pipeline is connected with the maintenance pipe stretching out outside casing, it is characterized in that, described casing is vacuum seal structure, in described casing, be provided with interlayer, the inwall of described interlayer is the multi-layer structure that thermoinsulation material forms, described interlayer inwall and cabinet exterior form airtight vacuum cavity, in described vacuum cavity, be evenly full of pearlife, described pipeline and valve installation are in described vacuum cavity, and on described pipeline and valve, voluble wrapping has antiradiation material.

As one of preferred version, described wall box is connected with and vacuumizes mouth, is provided with successively sand filtering net and glass fiber cloth in the described mouth inner side that vacuumizes.

As one of preferred version, described pipeline is connected with the vacuum valve pocket cryogenic globe valve of stretching out outside casing.

Described cryogenic globe valve plays the effect of fluid start and stop at this, is also the cold damage in order to reduce cryogenic liquide and it is made to vacuum heat-preserving state.

As one of preferred version, described pipeline is connected with the vacuum valve pocket low temperature Emergeny Cutoff Valves stretching out outside casing.Described low temperature Emergeny Cutoff Valves plays protection pipeline, is also the cold damage in order to reduce cryogenic liquide and it is made to vacuum heat-preserving state

As one of preferred version, the joint of described vacuum valve pocket cryogenic globe valve and vacuum valve pocket low temperature Emergeny Cutoff Valves and casing is provided with sleeve pipe, and the sidewall of described sleeve pipe is connected with box sealing.

As one of preferred version, described thermoinsulation material is specially flame retardant type cryogenic insulating paper and pure aluminum foil; Described antiradiation material is glass fibre Cryogenic Thermal Insulating Materials, and effect is to reduce cold and hot exchange, reduces energy loss.

As one of preferred version, described thermoinsulation material is at least 25 layers.

In addition, between pipeline and valve, all adopt flange to connect, make the maintenance of valve more for convenience.

Beneficial effect:

LNG liquid filler vacuum valve block described in the utility model uses housing structure, together with pipeline is concentrated with valve, rationally utilize liquid filler inner space, strengthened keeping warmth space, adopt multi-layer structure, interlayer adopts multilayer insulant, the inner uniform filling pearlife of interlayer, and on pipeline and valve, voluble wrapping has advanced antiradiation material, and whole interlayer also keeps vacuum state, thereby cold damage amount is controlled to bottom line, thereby meet the requirement of LNG liquid filler liquid feeding insulation.

Brief description of the drawings

Fig. 1 is the surface structure schematic diagram of the utility model LNG liquid filler vacuum valve block;

Fig. 2 is the side cutaway view of the utility model LNG liquid filler vacuum valve block;

Fig. 3 is the top plan view of the utility model LNG liquid filler vacuum valve block;

Fig. 4 is the left pseudosection of the utility model LNG liquid filler vacuum valve block;

Wherein, 1, casing; 2, interlayer; 3, pearlife; 4, vacuumize mouth; 5, sand filtering net; 6, glass fiber cloth, 7, Emergeny Cutoff Valves, 8, cryogenic globe valve, 9, sleeve pipe, 10, pipeline, 11, valve, 12, pearlife entrance shrouding.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, the technical solution of the utility model is further described.

Embodiment:

As shown in Figure 1 to 4: a kind of LNG liquid filler vacuum valve block that the present embodiment discloses, comprise casing 1, in casing 1, be provided with pipeline 10 and valve 11, described pipeline 10 is connected with the maintenance pipe stretching out outside casing 1, it is characterized in that, described casing 1 is vacuum seal structure, in described casing 1, be provided with interlayer 2, the inwall of described interlayer 2 is the multi-layer structure that thermoinsulation material forms, described interlayer 2 inwalls and casing 1 outer wall form airtight vacuum cavity, in described vacuum cavity, be evenly full of pearlife 3, described pipeline 10 and valve 11 are installed in described vacuum cavity, on described pipeline 10 and valve 11, voluble wrapping has antiradiation material.。

As one of preferred version, described casing 1 sidewall is connected with and vacuumizes mouth 4, is provided with successively sand filtering net 5 and glass fiber cloth 6 in described mouth 4 inner sides that vacuumize.

As one of preferred version, described pipeline 10 is connected with the vacuum valve pocket cryogenic globe valve 8 of stretching out outside casing 1.

Described cryogenic globe valve 8 plays the effect of fluid start and stop at this, is also the cold damage in order to reduce cryogenic liquide and it is made to vacuum heat-preserving state.

As one of preferred version, described pipeline 10 is connected with the vacuum valve pocket low temperature Emergeny Cutoff Valves 7 stretching out outside casing 1.Described low temperature Emergeny Cutoff Valves 7 plays protection pipeline, is also the cold damage in order to reduce cryogenic liquide and it is made to vacuum heat-preserving state

As one of preferred version, the joint of described vacuum valve pocket cryogenic globe valve and vacuum valve pocket low temperature Emergeny Cutoff Valves and casing 1 is provided with sleeve pipe 9, and the sidewall of described sleeve pipe 9 and casing 1 are tightly connected.

On described cabinet exterior, be also provided with pearlife entrance shrouding 12, be convenient to fill pearlife 3 and prevent that pearlife 3 from revealing in laminated vacuum cavity.

In addition, between pipeline 10 and valve 11, all adopt flange to connect, make the maintenance of valve more for convenience.

It is to be noted; as described above is only in order to explain the preferred embodiment of the utility model; and attempt is done any formal restriction to the utility model according to this; be with; all any modification or changes that has the relevant the utility model of doing under identical practical spirit, all must be included in the category of the utility model intention protection.

Claims

1. a LNG liquid filler vacuum valve block, comprise casing, in casing, be provided with pipeline and valve, described pipeline is connected with the maintenance pipe stretching out outside casing, it is characterized in that, described casing is vacuum seal structure, in described casing, be provided with interlayer, the inwall of described interlayer is the multi-layer structure that thermoinsulation material forms, described interlayer inwall and cabinet exterior form airtight vacuum cavity, in described vacuum cavity, be evenly full of pearlife, described pipeline and valve installation are in described vacuum cavity, and on described pipeline and valve, voluble wrapping has antiradiation material.

2. LNG liquid filler vacuum valve block according to claim 1, is characterized in that, described wall box is connected with and vacuumizes mouth, is provided with successively sand filtering net and glass fiber cloth in the described mouth inner side that vacuumizes.

3. LNG liquid filler vacuum valve block according to claim 2, is characterized in that, described pipeline is connected with the vacuum valve pocket cryogenic globe valve of stretching out outside casing.

4. LNG liquid filler vacuum valve block according to claim 3, is characterized in that, described pipeline is connected with the vacuum valve pocket low temperature Emergeny Cutoff Valves stretching out outside casing.

5. LNG liquid filler vacuum valve block according to claim 4, is characterized in that, the joint of described vacuum valve pocket cryogenic globe valve and vacuum valve pocket low temperature Emergeny Cutoff Valves and casing is provided with sleeve pipe, and the sidewall of described sleeve pipe is connected with box sealing.

6. LNG liquid filler vacuum valve block according to claim 5, is characterized in that, described thermoinsulation material is flame retardant type cryogenic insulating paper and pure aluminum foil; Described antiradiation material is glass fibre Cryogenic Thermal Insulating Materials.

7. LNG liquid filler vacuum valve block according to claim 6, is characterized in that, described thermoinsulation material is at least 25 layers.