CN204227026U - Low-temperature storage tank - Google Patents
Low-temperature storage tank Download PDFInfo
- Publication number
- CN204227026U CN204227026U CN201420635090.7U CN201420635090U CN204227026U CN 204227026 U CN204227026 U CN 204227026U CN 201420635090 U CN201420635090 U CN 201420635090U CN 204227026 U CN204227026 U CN 204227026U
- Authority
- CN
- China
- Prior art keywords
- insulation layer
- heat insulation
- cylinder body
- outer cylinder
- inner barrel
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of low-temperature storage tank, the material evaporation rate in prior art that solves is high, easily cause the frequent take-off of the safety valve even rupture disk problem of breaking.Comprise outer cylinder body and inner barrel, outer cylinder body external diameter is greater than inner barrel external diameter, described outer cylinder body is quality carbon structural steel (0Cr18Ni9), described inner barrel is austenite stainless steel plate material (Q345R), it is characterized in that, described outer cylinder body and inner barrel form heat insulation layer, and described heat insulation layer thickness is between 300mm to 400mm, fill up pearlife in heat insulation layer and vacuumize, in heat insulation layer, being provided with the sorbent that can extend vacuum life.The beneficial effects of the utility model are that material evaporation rate reduces (Daily boil-off-rate≤2.5%), even if in production run in summer, low-temperature storage tank pressure also can be controlled within the scope of craft index, avoid the generation of the frequent take-off of safety valve and rupture disk fracture phenomena, ensure that production system long period, safety, stable operation.
Description
Technical field
The utility model relates to a kind of low temperature vacuum thermal insulation storage facilities, particularly relates to a kind of low-temperature storage tank.
Background technique
Liquid oxygen, liquid argon, liquid nitrogen, liquid carbon dioxide, LNG cold storage tank are the cryogenic liquid vessel of vertical (horizontal) two drum vacuum powder isolation, interlayer is formed between inner barrel and outer cylinder body, interlayer is heat insulation layer, fill up pearlife and vacuumize, current conventional design heat insulation layer thickness is 250mm.Production practices show, adopt this heat insulation layer thickness, material evaporation rate high (Daily boil-off-rate > 4%), and therefore discharge amount is large, easily cause the frequent take-off of safety valve even rupture disk break, in-built medium waste, static evaporation rate is higher.
Summary of the invention
The purpose of this utility model is to provide a kind of low-temperature storage tank, and the material evaporation rate in prior art that solves is high, easily cause the frequent take-off of the safety valve even rupture disk problem of breaking.
The technological scheme that the utility model adopts is, a kind of low-temperature storage tank, comprise outer cylinder body and inner barrel, outer cylinder body external diameter is greater than inner barrel external diameter, described outer cylinder body is quality carbon structural steel (0Cr18Ni9), described inner barrel is austenite stainless steel plate material (Q345R), described outer cylinder body and inner barrel form heat insulation layer, described heat insulation layer thickness is between 300mm to 400mm, fill up pearlife in heat insulation layer and vacuumize, in heat insulation layer, being provided with the sorbent that can extend vacuum life.
The beneficial effects of the utility model are that material evaporation rate reduces (Daily boil-off-rate≤2.5%), even if in production run in summer, low-temperature storage tank pressure also can be controlled within the scope of craft index, avoid the generation of the frequent take-off of safety valve and rupture disk fracture phenomena, ensure that production system long period, safety, stable operation.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure, 1. outer cylinder body, 2. inner barrel, 3. pearlife, 4. sorbent.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
As shown in Figure 1, low-temperature storage tank comprises outer cylinder body and inner barrel, outer cylinder body external diameter is greater than inner barrel external diameter, described outer cylinder body is quality carbon structural steel (0Cr18Ni9), described inner barrel is austenite stainless steel plate material (Q345R), it is characterized in that, described outer cylinder body and inner barrel form heat insulation layer, described heat insulation layer thickness is between 300mm to 400mm, fill up pearlife in heat insulation layer and be evacuated to the technical order of regulation, being added with the sorbent that can extend vacuum life simultaneously.Heat insulation layer thickness is not less than 300mm to be through Strength co-mputation, cost efficient and to put into practice gained.Due to the thickening of heat insulation layer, reduce material evaporation rate, it also avoid the generation of security incident simultaneously.
Claims (1)
1. a low-temperature storage tank, comprise outer cylinder body and inner barrel, outer cylinder body external diameter is greater than inner barrel external diameter, described outer cylinder body is quality carbon structural steel (0Cr18Ni9), and described inner barrel is austenite stainless steel plate material (Q345R), it is characterized in that, described outer cylinder body and inner barrel form heat insulation layer, described heat insulation layer thickness, between 300mm to 400mm, fills up pearlife in heat insulation layer and vacuumizes, and is provided with the sorbent that can extend vacuum life in heat insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635090.7U CN204227026U (en) | 2014-10-30 | 2014-10-30 | Low-temperature storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635090.7U CN204227026U (en) | 2014-10-30 | 2014-10-30 | Low-temperature storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204227026U true CN204227026U (en) | 2015-03-25 |
Family
ID=52925123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420635090.7U Expired - Fee Related CN204227026U (en) | 2014-10-30 | 2014-10-30 | Low-temperature storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204227026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112407643A (en) * | 2020-09-04 | 2021-02-26 | 中车西安车辆有限公司 | Low-temperature adsorption device for tank interlayer and working method |
-
2014
- 2014-10-30 CN CN201420635090.7U patent/CN204227026U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112407643A (en) * | 2020-09-04 | 2021-02-26 | 中车西安车辆有限公司 | Low-temperature adsorption device for tank interlayer and working method |
| CN112407643B (en) * | 2020-09-04 | 2022-04-12 | 中车西安车辆有限公司 | Low-temperature adsorption device for tank interlayer and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20171030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |