CN202992642U - Special device for vacuumizing deep cold container interlayer - Google Patents
Special device for vacuumizing deep cold container interlayer Download PDFInfo
- Publication number
- CN202992642U CN202992642U CN 201220712848 CN201220712848U CN202992642U CN 202992642 U CN202992642 U CN 202992642U CN 201220712848 CN201220712848 CN 201220712848 CN 201220712848 U CN201220712848 U CN 201220712848U CN 202992642 U CN202992642 U CN 202992642U
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- nitrogen
- interlayer
- heating
- vacuum
- vacuumizing
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Abstract
The utility model discloses a special device for vacuumizing a deep cold container interlayer, belongs to a container for placing or storing compressed, liquefied or solidified gas, and especially discloses a deep cold container with a heat insulation measure. The special device for vacuumizing the deep cold container interlayer comprises an inner container heating system, an outer barrel heating device and an interlayer vacuumizing system, wherein the inner container heating system comprises a nitrogen heating furnace, a hot nitrogen temperature measuring and pressure measuring device arranged between the nitrogen heating furnace and an inner container nitrogen air inlet pipe, as well as a nitrogen air outlet temperature measuring and pressure measuring device arranged on a nitrogen air outlet pipe, and the interlayer vacuumizing system comprises a vacuum pump, a vacuum valve and a vacuum measuring device. The special device disclosed by the utility model adopts the hot nitrogen the temperature of which is higher than 350 DEG C to heat an inner container, and a heating furnace to heat the outer barrel body, so that the inner container and the outer barrel body are simultaneously heated, the gas release rate of the material in an interlayer can be increased under a heating state, the materials such as remaining water molecule are decomposed, the vacuumizing efficiency is improved, the vacuum degree of the interlayer is effectively improved, and the qualified index of the gas leakage and release rate is improved.
Description
Technical field
The utility model belongs to splendid attire or stores gas container compression, liquefaction or that solidify, particularly with the manufacture method of the deep cooling container of adiabatic measure.
Background technique
The method that each producer of deep cooling container vacuum pumping technology adopts has cold-draw and heat to take out two kinds, vacuumizing and explain in words the system way with regard to heat is equipment to be placed in heat in oven, the heated part only has outer cylinder body, be in cold conditions because of interior tank body when heating, the hot gas of the releases such as Sandwich filling material is attached on the inner barrel outer wall and forms secondary and condense, increased and vacuumized difficulty, extended the pumpdown time, reduced working efficiency.Bring adverse effect for vacuum keep and raising leakage outgassing rate index.
The model utility content
When vacuumizing for the outer cylinder body that overcomes independent heating deep cooling container, the hot gas of the release such as Sandwich filling material is attached to and forms the difficult problem that secondary condenses on the inner barrel outer wall, and the purpose of this utility model is to provide a kind of isolated plant of deep cooling container interlayer vacuum-pumping.
The technical solution of the utility model is that a kind of isolated plant of deep cooling container interlayer vacuum-pumping is characterized in that: comprise inner bag heating system, outer cylinder body heating equipment and interlayer vacuum-pumping system,
Described inner bag heating system comprises nitrogen heating furnace, be arranged on the hot nitrogen thermometric pressure-detecting device between nitrogen heating furnace and inner bag nitrogen suction tude and be arranged on nitrogen outlet thermometric pressure-detecting device on the nitrogen steam outlet pipe,
Described outer cylinder body heating equipment is the oven that outer cylinder body integral body can be heated,
Described interlayer vacuum-pumping system comprises vacuum pump and vacuum valve and surveys vacuum system.
Use above-mentioned isolated plant to deep cooling container interlayer vacuum-pumping method to be: to use heating plant to the heating of deep cooling container outer cylinder body, will be heated to the N of 350-370 ℃ continuously
2Be filled with in the inner bag of deep cooling container, control inlet pressure at 0.4MPa; Outlet pressure uses vacuum pump that the outer cylinder body of deep cooling container and the interlayer between inner bag are vacuumized under the state that outer cylinder body and inner bag to deep cooling container heat simultaneously at 0.2MPa.
The isolated plant of the disclosed deep cooling container interlayer vacuum-pumping of the utility model can adopt special nitrogen oven heated nitrogen, use hot nitrogen heating inner liner, employing oven heating outer cylinder body higher than 350 ℃ that inner bag and outer cylinder body are heated simultaneously, make the interior material of interlayer increase outgassing rate under heating status, be conducive to decompose the remaining materials such as water molecule, raising vacuumizes efficient and effectively improves layer vacuum, improves the qualified index of leakage outgassing rate.During the inner bag heating, 0.2MPa hot nitrogen and internal face convection heat exchange, transfer heat to adiabatic packing material in interlayer through wall with heat conducting form again, the heating of outer cylinder body is carried out simultaneously, this mode of heating is more direct, make the thermoinsulation material can thermally equivalent, avoid occurring the dead angle of exitting too much, greatly improved the container quality of bleeding and shortened and bleed the time.
Description of drawings
Fig. 1 is structural representation of the present utility model,
In figure, 1. nitrogen heating furnace, 2. hot nitrogen thermometric pressure-detecting device, 3. nitrogen outlet thermometric pressure-detecting device, 4. outer cylinder body, 5. inner bag, 6. interlayer, 7. outer cylinder body heating equipment, 8. vacuum valve and survey vacuum system, 9. vacuum pump, 10. cold nitrogen inlet, 11. nitrogen outlet, 12. nitrogen stop valves.
Embodiment
Embodiment of the present utility model is, as shown in the figure:
Embodiment 1, and a kind of isolated plant of deep cooling container interlayer vacuum-pumping is characterized in that: comprise inner bag heating system, outer cylinder body heating equipment and interlayer vacuum-pumping system,
Described inner bag heating system comprises nitrogen heating furnace 1, be arranged on the hot nitrogen thermometric pressure-detecting device 2 between nitrogen heating furnace and inner bag nitrogen suction tude and be arranged on nitrogen outlet thermometric pressure-detecting device 3 on the nitrogen steam outlet pipe,
Described outer cylinder body heating equipment 7 is the oven that outer cylinder body 4 integral body can be heated,
Described interlayer vacuum-pumping system comprises vacuum pump 9 and vacuum valve and surveys vacuum system 8.
Use above-mentioned isolated plant to deep cooling container interlayer vacuum-pumping method to be: to use heating plant to the heating of deep cooling container outer cylinder body, will be heated to the N of 350-370 ℃ continuously
2Be filled with in the inner bag 5 of deep cooling container, control inlet pressure at 0.4MPa; Outlet pressure uses vacuum pump that outer cylinder body and the interlayer between inner bag 6 of deep cooling container are vacuumized under the state that outer cylinder body and inner bag to deep cooling container heat simultaneously at 0.2MPa.
Claims (1)
1. the isolated plant of a deep cooling container interlayer vacuum-pumping is characterized in that: comprise inner bag heating system, outer cylinder body heating equipment and interlayer vacuum-pumping system,
Described inner bag heating system comprises nitrogen heating furnace, be arranged on the hot nitrogen thermometric pressure-detecting device between nitrogen heating furnace and inner bag nitrogen suction tude and be arranged on nitrogen outlet thermometric pressure-detecting device on the nitrogen steam outlet pipe,
Described outer cylinder body heating equipment is the oven that outer cylinder body integral body can be heated,
Described interlayer vacuum-pumping system comprises vacuum pump and vacuum valve and surveys vacuum system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712848 CN202992642U (en) | 2012-12-21 | 2012-12-21 | Special device for vacuumizing deep cold container interlayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712848 CN202992642U (en) | 2012-12-21 | 2012-12-21 | Special device for vacuumizing deep cold container interlayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202992642U true CN202992642U (en) | 2013-06-12 |
Family
ID=48563820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220712848 Expired - Lifetime CN202992642U (en) | 2012-12-21 | 2012-12-21 | Special device for vacuumizing deep cold container interlayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202992642U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343878A (en) * | 2013-07-26 | 2013-10-09 | 江南工业集团有限公司 | Vacuum pumping device for interlayer of cryogenic insulation cylinder |
| CN103968235A (en) * | 2014-04-24 | 2014-08-06 | 张家港市科华化工装备制造有限公司 | Low-temperature storage tank for improving mounting leak tightness of evacuating device |
| CN104033725A (en) * | 2014-05-09 | 2014-09-10 | 南通龙鹰真空成套设备科技有限公司 | Vacuumizing system equipment for multilayer-winded vacuum thermal-insulation gas cylinder |
| CN105649952A (en) * | 2016-03-23 | 2016-06-08 | 杭州川空通用设备有限公司 | Vacuum pipe evacuator and evacuating method thereof |
| CN108799820A (en) * | 2018-06-21 | 2018-11-13 | 湖北三江航天江北机械工程有限公司 | Cryogenic insulated cylinder high-efficient vacuumizing method |
-
2012
- 2012-12-21 CN CN 201220712848 patent/CN202992642U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343878A (en) * | 2013-07-26 | 2013-10-09 | 江南工业集团有限公司 | Vacuum pumping device for interlayer of cryogenic insulation cylinder |
| CN103343878B (en) * | 2013-07-26 | 2015-06-24 | 江南工业集团有限公司 | Vacuum pumping device for interlayer of cryogenic insulation cylinder |
| CN103968235A (en) * | 2014-04-24 | 2014-08-06 | 张家港市科华化工装备制造有限公司 | Low-temperature storage tank for improving mounting leak tightness of evacuating device |
| CN103968235B (en) * | 2014-04-24 | 2016-04-13 | 张家港市科华化工装备制造有限公司 | A kind of low-temperature storage tank improving vacuum pumping device installation sealing |
| CN104033725A (en) * | 2014-05-09 | 2014-09-10 | 南通龙鹰真空成套设备科技有限公司 | Vacuumizing system equipment for multilayer-winded vacuum thermal-insulation gas cylinder |
| CN104033725B (en) * | 2014-05-09 | 2016-01-27 | 南通龙鹰真空成套设备科技有限公司 | Multi-lay winding vacuum insulation gas cylinder pumped vacuum systems is equipped |
| CN105649952A (en) * | 2016-03-23 | 2016-06-08 | 杭州川空通用设备有限公司 | Vacuum pipe evacuator and evacuating method thereof |
| CN108799820A (en) * | 2018-06-21 | 2018-11-13 | 湖北三江航天江北机械工程有限公司 | Cryogenic insulated cylinder high-efficient vacuumizing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
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| CX01 | Expiry of patent term |