[go: up one dir, main page]

CN112389890B - Sectional type heat preservation device suitable for temperature sensor in tank body - Google Patents

Sectional type heat preservation device suitable for temperature sensor in tank body Download PDF

Info

Publication number
CN112389890B
CN112389890B CN202011366000.5A CN202011366000A CN112389890B CN 112389890 B CN112389890 B CN 112389890B CN 202011366000 A CN202011366000 A CN 202011366000A CN 112389890 B CN112389890 B CN 112389890B
Authority
CN
China
Prior art keywords
temperature sensor
inner layer
layer
prefabricated heat
insulation material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011366000.5A
Other languages
Chinese (zh)
Other versions
CN112389890A (en
Inventor
高颖潇
徐佳伟
张燚
田振
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tiee Cryogenic Shanghai Offshore Engineering Co ltd
Original Assignee
Tiee Cryogenic Shanghai Offshore Engineering Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tiee Cryogenic Shanghai Offshore Engineering Co ltd filed Critical Tiee Cryogenic Shanghai Offshore Engineering Co ltd
Priority to CN202011366000.5A priority Critical patent/CN112389890B/en
Publication of CN112389890A publication Critical patent/CN112389890A/en
Application granted granted Critical
Publication of CN112389890B publication Critical patent/CN112389890B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/48Arrangements of indicating or measuring devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/02Wall construction
    • B65D90/06Coverings, e.g. for insulating purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2590/00Component parts, details or accessories for large containers
    • B65D2590/02Wall construction
    • B65D2590/026Special coating or treatment of the external surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention relates to a sectional type heat preservation device suitable for a temperature sensor in a tank body, which comprises an inner layer protection device and an outer layer protection cover, wherein the inner layer protection device comprises an inner layer soft material, a gasket, a connecting structure, an inner layer prefabricated heat preservation material and a pull ring, the inner layer soft material covers the temperature sensor, the inner layer prefabricated heat preservation material is positioned at the outer side of the inner layer soft material, the inner layer prefabricated heat preservation material is supported by the gasket, the gasket is connected with the pull ring through the connecting structure, the connecting structure penetrates through the inner layer prefabricated heat preservation material, the pull ring is positioned at the outer side of the inner layer prefabricated heat preservation material, the outer layer protection cover comprises an outer layer prefabricated heat preservation material, and the outer layer prefabricated heat preservation material covers the outer side of the inner layer prefabricated heat preservation material and the outer side of the pull ring. Compared with the prior art, the invention has the advantages of safety, reliability, convenient disassembly and assembly, and the like.

Description

Sectional type heat preservation device suitable for temperature sensor in tank body
Technical Field
The invention relates to a heat preservation device of a tank body, in particular to a sectional type heat preservation device suitable for a temperature sensor in the tank body.
Background
At present, a fuel tank and a low-temperature tank body of the existing ship are provided with temperature sensors for detecting temperature changes, so that the safety of the fuel tank in ship navigation is greatly improved. In order to avoid damage to the temperature sensor, the outside of the temperature sensor needs to be sprayed with a heat insulating material to insulate and protect the temperature sensor.
The external protection of the existing temperature sensor is to cover a protection pipe around the external part and seal the pipe orifice at the other end, then to spray the whole liquid tank, take out the protection pipe after the spraying is finished, and finally to fill the prepared prefabricated heat insulation material in the concave part left after the protection pipe is taken out, so as to insulate and protect the temperature sensor. But such a method causes two problems. One is that when someone overhauls temperature sensor, because the prefabricated heat preservation material of packing is a whole, the taking out of prefabricated heat preservation material is a bigger problem. Because the prefabricated heat insulation material is difficult to directly take out, the prefabricated heat insulation material needs to be split into small blocks to take out, which can easily cause cracks around the temperature sensor and affect the overall heat insulation performance of the liquid tank. Another problem is that the outermost seal still needs to be spray coated again after the prefabricated insulation has been filled, which is a significant waste of manpower and material resources.
Disclosure of Invention
The invention provides a sectional type heat preservation device suitable for a temperature sensor in a tank body, which aims to overcome the problems of the external protection mode of the existing temperature sensor in the background technology.
The aim of the invention can be achieved by the following technical scheme:
the invention provides a sectional type heat preservation device suitable for a temperature sensor in a tank body, which comprises an inner layer protection device and an outer layer protection cover,
The inner layer protection device comprises an inner layer soft material, a gasket, a connecting structure, an inner layer prefabricated heat insulation material and a pull ring, wherein the inner layer soft material covers the temperature sensor, the inner layer prefabricated heat insulation material is located on the outer side of the inner layer soft material, the inner layer prefabricated heat insulation material is supported by the gasket, the gasket is connected with the pull ring through the connecting structure, the connecting structure penetrates through the inner layer prefabricated heat insulation material, the pull ring is located on the outer side of the inner layer prefabricated heat insulation material, the pull ring is pulled out of the inner layer prefabricated heat insulation material through the connecting structure and the gasket, the outer layer protection cover comprises an outer layer prefabricated heat insulation material, and the outer layer prefabricated heat insulation material covers the outer sides of the inner layer prefabricated heat insulation material and the pull ring.
In one embodiment of the invention, an outer soft material is arranged in the outer prefabricated heat insulation material, and the outer soft material is close to the inner prefabricated heat insulation material and wraps the outer side of the pull ring.
In one embodiment of the invention, the surface of the outer layer prefabricated heat insulation material is provided with a surface protection layer.
In one embodiment of the present invention, the surface protective layer is formed by spraying a surface protective material.
In one embodiment of the invention, the covering temperature sensor is located on the surface of the tank body, a tank body protection layer is arranged on the surface of the tank body, a space for arranging an inner layer protection device and an outer layer protection cover is reserved in the tank body protection layer, and the inner layer protection device and the outer layer protection cover are embedded in the middle of the tank body protection layer.
In one embodiment of the invention, the surface of the outer prefabricated thermal insulation material is flush with the surface of the tank protection layer.
In one embodiment of the present invention, the periphery of the surface protection layer covers the surface of the tank protection layer.
In one embodiment of the invention, the temperature sensor is connected with a temperature sensor wiring, and the temperature sensor wiring penetrates through the inner soft material, the inner prefabricated heat insulation material, the outer prefabricated heat insulation material and the surface protection layer.
In one embodiment of the invention, the inner layer prefabricated heat insulation material is reserved with a pore canal for enabling the temperature sensor wiring to pass through.
In one embodiment of the present invention, the inner layer prefabricated thermal insulation material is reserved with a hole channel for the connection structure to pass through.
In one embodiment of the invention, the inner side surface of the outer prefabricated heat insulation material is coated with low-temperature glue.
The inner layer protection device combines the pull ring, the inner layer prefabricated heat insulation material and the gasket through the connecting structure. The pad is additionally arranged on the inner side of the inner layer prefabricated heat insulation material, so that the stressed area can be effectively increased, and the problem caused by stress concentration is avoided. The connection structure top and pull ring connection can be more convenient for take out inlayer prefabricated heat preservation material. And the soft material of the inner layer filled at the bottom of the inner layer protection device can effectively absorb the deformation of the material.
The outer protective cover is also made of an outer prefabricated heat insulation material as a main body. The surface protection layer is formed by spraying the surface protection material on the outer surface of the outer prefabricated heat insulation material in advance, and the low-temperature glue is smeared on the inner surface of the outer prefabricated heat insulation material to prevent external water vapor from entering, and meanwhile, the physical properties of the outer protection cover are improved. In addition, the outer soft material is filled in the outer protective cover to avoid deformation.
Because the space for arranging the inner layer protection device and the outer layer protection cover is reserved in the tank body protection layer, the inner layer protection device and the outer layer protection cover are embedded in the middle of the tank body protection layer. Therefore, the inner layer prefabricated heat insulation material can be taken out more conveniently and rapidly on the premise that the protective layer material of the tank body around the temperature sensor is not damaged.
The working principle of the invention is as follows:
According to the invention, the temperature distribution around the temperature sensor is calculated through finite element analysis simulated in low-temperature circulation of the fuel tank or the low-temperature tank surface temperature sensor and data acquisition, so that the sectional protection device can keep the temperature of the temperature sensor and protect the temperature sensor.
The invention utilizes the structural characteristics of the sectional type protection device, and can effectively reduce the influence caused by external severe conditions when the sectional type protection device provides heat preservation and protection for the temperature sensor. And when temperature sensor breaks down, can take out outer prefabricated heat preservation material and inlayer prefabricated heat preservation material conveniently under the condition of not destroying temperature sensor around, jar body protective layer to overhaul temperature sensor.
Compared with the prior art, the invention has the advantages that:
1. the application range is wide: it is applicable to different fuel tanks and temperature sensors in low-temperature tanks. And meanwhile, the optimal solution can be made according to liquid tanks and fuel tanks with different shapes.
2. Safety and reliability: during development, the scheme can be ensured to be suitable for various different conditions through multiple simulated cooling cycles and finite element analysis. The double protection is provided, and the safety coefficient is high.
3. The maintenance is simple: if part is damaged, the original surface can be repaired directly by using low-temperature glue at any time with a simple procedure.
4. The disassembly and assembly are convenient: when the sectional type protection device needs to be disassembled and assembled, the inner layer protection structure can be directly taken out through the pull ring, so that the assembly and disassembly are very convenient and quick.
5. The cost is saved: the invention can be completed in a prefabrication mode, effectively avoids the problem of waste of the belt materials during on-site spraying and saves labor cost.
Drawings
Fig. 1 is a schematic structural diagram of a sectional type heat preservation device suitable for a temperature sensor in a tank body in an embodiment of the invention.
Reference numerals: 1. a surface protection layer; 2. the thermal insulation material comprises an outer layer prefabricated thermal insulation material, an outer layer soft material, a tank body protection layer, an inner layer prefabricated thermal insulation material, a connecting structure, a gasket, an inner layer soft material, a temperature sensor wiring, a tank body, a pull ring and a connecting structure.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Examples
Referring to fig. 1, the embodiment provides a sectional type heat preservation device suitable for a temperature sensor in a tank body, which comprises an inner layer protection device and an outer layer protection cover,
The inner layer protection device comprises an inner layer soft material 8, a gasket 7, a connecting structure 6, an inner layer prefabricated heat insulation material 5 and a pull ring 12, wherein the inner layer soft material 8 covers a temperature sensor 10, the inner layer prefabricated heat insulation material 5 is located at the outer side of the inner layer soft material 8, the inner layer prefabricated heat insulation material 5 is supported by the gasket 7, the gasket 7 is connected with the pull ring 12 through the connecting structure 6, the connecting structure 6 penetrates through the inner layer prefabricated heat insulation material 5, the pull ring 12 is located at the outer side of the inner layer prefabricated heat insulation material 5, the pull ring 12 is pulled to pull out the inner layer prefabricated heat insulation material 5 through the connecting structure 6 and the gasket 7, the outer layer protection cover comprises an outer layer prefabricated heat insulation material 2, and the outer layer prefabricated heat insulation material 2 covers the outer sides of the inner layer prefabricated heat insulation material 5 and the pull ring 12.
In this embodiment, an outer soft material 3 is disposed in the outer prefabricated thermal insulation material 2, and the outer soft material 3 is close to the inner prefabricated thermal insulation material 5 and wraps the outer side of the pull ring 12.
In this embodiment, the surface of the outer prefabricated thermal insulation material 2 is provided with a surface protection layer 1. The surface protection layer 1 is formed by spraying a surface protection material.
In this embodiment, the covering temperature sensor 10 is located on the surface of the tank 11, a tank protection layer 4 is disposed on the surface of the tank 11, and a space for disposing an inner protection device and an outer protection cover is reserved on the tank protection layer 4, and the inner protection device and the outer protection cover are embedded in the middle of the tank protection layer 4.
In this embodiment, the surface of the outer prefabricated thermal insulation material 2 is flush with the surface of the tank protection layer 4. The periphery of the surface protection layer 1 covers the surface of the tank protection layer 4.
In this embodiment, the temperature sensor 10 is connected with a temperature sensor connection 9, and the temperature sensor connection 9 passes through the inner soft material 8, the inner prefabricated thermal insulation material 5, the outer prefabricated thermal insulation material 2 and the surface protection layer 1. And a pore canal for allowing the temperature sensor wiring 9 to pass through is reserved on the inner layer prefabricated heat insulation material 5. And a pore canal for allowing the connecting structure 6 to pass through is reserved on the inner layer prefabricated heat insulation material 5.
In this embodiment, the inner side surface of the outer layer prefabricated thermal insulation material 2 is coated with low-temperature glue.
The inner layer protection device combines the pull ring, the inner layer prefabricated heat insulation material and the gasket through the connecting structure. The pad is additionally arranged on the inner side of the inner layer prefabricated heat insulation material, so that the stressed area can be effectively increased, and the problem caused by stress concentration is avoided. The connection structure top and pull ring connection can be more convenient for take out inlayer prefabricated heat preservation material. And the soft material of the inner layer filled at the bottom of the inner layer protection device can effectively absorb the deformation of the material.
The outer protective cover is also made of an outer prefabricated heat insulation material as a main body. The surface protection layer is formed by spraying the surface protection material on the outer surface of the outer prefabricated heat insulation material in advance, and the low-temperature glue is smeared on the inner surface of the outer prefabricated heat insulation material to prevent external water vapor from entering, and meanwhile, the physical properties of the outer protection cover are improved. In addition, the outer soft material is filled in the outer protective cover to avoid deformation.
Because the space for arranging the inner layer protection device and the outer layer protection cover is reserved in the tank body protection layer 4, the inner layer protection device and the outer layer protection cover are embedded in the middle of the tank body protection layer 4. Therefore, the inner layer prefabricated heat insulation material 5 can be taken out more conveniently and rapidly on the premise that the material of the tank body protection layer 4 around the temperature sensor is not damaged.
The sectional type heat preservation device suitable for the temperature sensor in the tank body of the embodiment can calculate the distribution of the surrounding temperature of the temperature sensor through finite element analysis of the simulation of the surface temperature sensor of the fuel tank or the low-temperature tank body in the low-temperature circulation and data acquisition, thereby ensuring that the sectional type protection device can play a role in preserving heat and protecting the temperature sensor.
The sectional type heat preservation device suitable for the temperature sensor in the tank body of the embodiment utilizes the structural characteristics of the sectional type protection device, and when the sectional type protection device provides heat preservation and protection effects for the temperature sensor, the influence caused by the severe external conditions can be effectively reduced. And when temperature sensor breaks down, can take out outer prefabricated heat preservation material and inlayer prefabricated heat preservation material conveniently under the condition of not destroying temperature sensor around, jar body protective layer to overhaul temperature sensor.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.

Claims (8)

1. A sectional type heat preservation device suitable for a temperature sensor in a tank body is characterized by comprising an inner layer protection device and an outer layer protection cover,
Wherein the inner layer protection device comprises an inner layer soft material (8), a gasket (7), a connecting structure (6), an inner layer prefabricated heat insulation material (5) and a pull ring (12), the inner layer soft material (8) covers the temperature sensor (10),
The inner layer prefabricated heat insulation material (5) is positioned at the outer side of the inner layer soft material (8),
The inner layer prefabricated heat insulation material (5) is supported by a gasket (7), the gasket (7) is connected with a pull ring (12) through a connecting structure (6), the connecting structure (6) penetrates through the inner layer prefabricated heat insulation material (5), the pull ring (12) is positioned at the outer side of the inner layer prefabricated heat insulation material (5),
The outer protective cover comprises an outer prefabricated heat insulation material (2), and the outer prefabricated heat insulation material (2) covers the outer sides of the inner prefabricated heat insulation material (5) and the pull ring (12);
An outer soft material (3) is arranged in the outer prefabricated heat insulation material (2), and the outer soft material (3) is close to the inner prefabricated heat insulation material (5) and wraps the outer side of the pull ring (12);
the surface of the outer layer prefabricated heat insulation material (2) is provided with a surface protection layer (1).
2. A segmented thermal insulation device suitable for use in a temperature sensor in a tank according to claim 1, wherein the surface protection layer (1) is formed by spraying a surface protection material.
3. The sectional type heat preservation device suitable for the temperature sensor in the tank body according to claim 1, wherein the temperature sensor (10) is located on the surface of the tank body (11), a tank body protection layer (4) is arranged on the surface of the tank body (11), a space for arranging an inner layer protection device and an outer layer protection cover is reserved on the tank body protection layer (4), and the inner layer protection device and the outer layer protection cover are embedded in the middle of the tank body protection layer (4).
4. A segmented thermal insulation device suitable for use in a temperature sensor in a tank according to claim 3, characterized in that the surface of the outer prefabricated thermal insulation material (2) is flush with the surface of the tank protection layer (4).
5. A segmented thermal insulation device suitable for use in a temperature sensor in a tank according to claim 4, wherein the perimeter of the surface protection layer (1) covers the surface of the tank protection layer (4).
6. The sectional type heat preservation device suitable for the temperature sensor in the tank body according to claim 1, wherein the temperature sensor (10) is connected with a temperature sensor wiring (9), and the temperature sensor wiring (9) penetrates through the inner soft material (8), the inner prefabricated heat preservation material (5), the outer prefabricated heat preservation material (2) and the surface protection layer (1).
7. A segmented thermal insulation device suitable for use in a temperature sensor in a tank according to claim 6, wherein the inner prefabricated insulation material (5) is provided with a hole for the passage of a temperature sensor connection (9).
8. The sectional type heat preservation device suitable for the temperature sensor in the tank body according to claim 1, wherein the inner side surface of the outer prefabricated heat preservation material (2) is coated with low-temperature glue.
CN202011366000.5A 2020-11-29 2020-11-29 Sectional type heat preservation device suitable for temperature sensor in tank body Active CN112389890B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011366000.5A CN112389890B (en) 2020-11-29 2020-11-29 Sectional type heat preservation device suitable for temperature sensor in tank body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011366000.5A CN112389890B (en) 2020-11-29 2020-11-29 Sectional type heat preservation device suitable for temperature sensor in tank body

Publications (2)

Publication Number Publication Date
CN112389890A CN112389890A (en) 2021-02-23
CN112389890B true CN112389890B (en) 2024-07-30

Family

ID=74605435

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011366000.5A Active CN112389890B (en) 2020-11-29 2020-11-29 Sectional type heat preservation device suitable for temperature sensor in tank body

Country Status (1)

Country Link
CN (1) CN112389890B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN214166052U (en) * 2020-11-29 2021-09-10 悌埃深冷(上海)海洋工程有限公司 Sectional type heat preservation device suitable for temperature sensor in jar body

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950704106A (en) * 1992-11-20 1995-11-17 죤 에버트 벤손 ELECTRICALLY BONDABLE LAYER TO COVER AN OPENING
JP3031024U (en) * 1996-05-09 1996-11-12 大紀熱工業株式会社 Structure for checking equipment from outside
JP4081835B2 (en) * 1997-11-13 2008-04-30 株式会社Ihi Installation method of sheath type resistance thermometer
KR20130059927A (en) * 2011-11-29 2013-06-07 김시권 Freeze protection apparatus having temperature sensor for water gauge
KR20120004893U (en) * 2012-05-23 2012-07-05 삼성중공업 주식회사 Appratus for protecting hull from leackage of cryogenic liquid
RU2561797C1 (en) * 2014-04-29 2015-09-10 Закрытое акционерное общество Специализированное конструкторское бюро "Термоприбор" Adjusting device for surface temperature measurement sensor
CN110056763A (en) * 2019-05-29 2019-07-26 悌埃保温制品(上海)有限公司 A kind of spray coating heat preservation layer bracing means and its construction method for tank body

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN214166052U (en) * 2020-11-29 2021-09-10 悌埃深冷(上海)海洋工程有限公司 Sectional type heat preservation device suitable for temperature sensor in jar body

Also Published As

Publication number Publication date
CN112389890A (en) 2021-02-23

Similar Documents

Publication Publication Date Title
KR820000334B1 (en) Method of mounting a heat-insulating composite wall structure in a liquefied gas transfortation and or storage tank
CN109606564A (en) A kind of sealing structure of Type B containment system collets junction
JPS6318079B2 (en)
CN112389890B (en) Sectional type heat preservation device suitable for temperature sensor in tank body
CN214166052U (en) Sectional type heat preservation device suitable for temperature sensor in jar body
CN208779004U (en) The effective independent sealed anti-leakage structure of intelligent heat preserving
CN107795845B (en) Three-layer metal wall full-containing storage tank
CN202419128U (en) Low-temperature storage tank
CN214648865U (en) Heat preservation system with secondary shielding protection function suitable for low temperature jar body
CN214663702U (en) An underground installation structure for a hydrogen storage tank
CN109268674A (en) Low temperature atmospheric tank and its manhole structure
CN205991324U (en) Three-layer metal wall contains storage tank entirely
CN213745200U (en) Valve heat preservation box structure
CN204282553U (en) A kind of assembly of thorough blocking-up building structural steel cold bridge
CN214778206U (en) Anti insulation construction that pulls of liquid tank pressure-bearing wooden saddle
CN202181573U (en) Fire hydrant movable heat preservation cover
CN222720739U (en) Connector structure for self-pressure-keeping nitrogen insulation type casting bus
JPH0116000Y2 (en)
JPH0448400Y2 (en)
CN108591696A (en) The effective independent sealed anti-leakage structure of intelligent heat preserving
JPS6084498A (en) low temperature liquid storage tank
CN219912654U (en) Liquid oxygen heat insulation storage tank
CN210440810U (en) Detachable thermal insulation sleeve for valve
CN218094951U (en) LNG pipeline aerogel blanket heat insulation and preservation system
CN215594658U (en) Waterproof sealing's roof pipeline structure of wearing

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant