CN202196339U - Low temperature gas cylinder interlayer vacuum-pumping heating device - Google Patents
Low temperature gas cylinder interlayer vacuum-pumping heating device Download PDFInfo
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- CN202196339U CN202196339U CN2011202929620U CN201120292962U CN202196339U CN 202196339 U CN202196339 U CN 202196339U CN 2011202929620 U CN2011202929620 U CN 2011202929620U CN 201120292962 U CN201120292962 U CN 201120292962U CN 202196339 U CN202196339 U CN 202196339U
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Abstract
A low temperature gas cylinder interlayer vacuum-pumping heating device comprises an electrical bar and a thermocouple. The device is characterized in that the device also comprises a temperature control instrument, a low temperature relay and a high temperature relay, two ends of the electrical bar are connected with a power plug after being connected with a normally closed switch of the high temperature relay and a normally open switch of the low temperature relay in series, an output end of the thermocouple is connected with a temperature signal input end of the temperature control instrument, a coil of the high temperature relay is connected with a high temperature signal output end of the temperature control instrument, and two signal input ends of the low temperature relay are connected with a low temperature signal output end of the temperature control instrument. By adopting the low temperature gas cylinder interlayer vacuum-pumping heating device, the speed of low temperature gas cylinder interlayer vacuum-pumping can be enhanced. The device is high in temperature control precision, convenient in use, safe and reliable, and reasonable in structure design, and is suitable for using in safety detection departments.
Description
Technical field
The utility model relates to a kind of heating and temperature control device, and particularly a kind of heating and temperature control device that helps accelerating vacuum pumping rate belongs to the equipment that low temperature cylinder is used in vacuum.
Background technology
Low temperature cylinder has advantages such as volume is little, in light weight, carrying is flexible, is widely used in all kinds of liquefied gas at low temp such as splendid attire nitrogen, oxygen, hydrogen and LNG.Low temperature cylinder adopts the high vacuum multiple layer heat insulation mode mostly, and promptly container adopts double-decker, and the Sealed sandwich between the interior outer container is a vacuum heat-insulating layer, simultaneously, leaks heat in order to reduce radiation, also needs separation several layers radiation shield and heat-barrier material in interlayer.Layer vacuum is the factor that influences cryogenic insulated cylinder performance most critical.In the process of cryogenic insulated cylinder carrying and use, usually can be owing to a variety of causes (like bump, fire etc.) causes layer vacuum to reduce or the vacuum forfeiture.In order vacuum tightness to be reduced or the low temperature cylinder of forfeiture recovers heat-insulating property, just need the vacuum tightness of the Sealed sandwich of the multilayer heat insulation of low temperature cylinder be extracted into and be higher than 5 * 10
-2Pa.But owing to the venting of stainless guiding principle material under vacuum except cylindrical shell, and in multilayer heat insulation, thermal insulation material is porous medium mostly; Air-breathing property is strong; And the resistance of bleeding is big again, and the hydrone that in thermal insulation material, adsorbs is difficult to extract, and makes vacuumize chronic.
Summary of the invention
The purpose of the utility model is the speed that the low temperature cylinder interlayer is vacuumized in order to improve, and designs a kind of reasonable in design, and temperature control precision is high, and the user makes, and safe and reliable low temperature cylinder interlayer vacuumizes heating arrangement.
Find after deliberation, in vacuum, be employed in gas cylinder inside and add the venting that heat energy is accelerated the sandwich material surface; Adsorbent in simultaneously can the activation interlayer; Make adsorbent at high temperature emit gas, and repeatedly charge into nitrogen replacement, just can accomplish the task of vacuumizing in the short period of time; So it is a ring very important in the low temperature cylinder evacuation process that heating is given vent to anger.But thermal insulation material has limited the temperature of heating simultaneously again can not be too high, and through test, heating-up temperature preferably is controlled at 300～320
0Between the C; For this reason; Specialized designs this low temperature cylinder interlayer vacuumize heating arrangement, its structure comprises electrical bar and thermopair, also is included in temperature controller, low temperature relay and high temperature relay; The two ends of said electrical bar are connected with attaching plug after the normal open switch series connection of the normally closed switch of high temperature relay and low temperature relay; The thermopair output terminal is connected with the temperature signal input end of temperature controller, and the coil of high temperature relay is connected with the high temperature signal output terminal of temperature controller, and two input ends of low temperature relay are connected with the low-temperature signal output terminal of temperature controller.
Said temperature controller is selected PXR7TCY1-8W000 type temperature controller for use, and the low temperature relay is selected SSR type solid-state relay for use, and the high temperature relay is selected MY2N type relay for use, and electrical bar is chosen the electrically heated rod with 0.5～1.5KW.
The low temperature cylinder interlayer of the utility model vacuumizes heating arrangement, helps improving the speed that the low temperature cylinder interlayer is vacuumized.This device use thermopair is made temperature sensor and is cooperated with temperature controller; Be provided with measures such as biswitch 3-1 and 3-2 cut off the electricity supply from the electrical bar two ends again, have the temperature control precision height, the user makes; Advantages such as safe and reliable and reasonable in design are fit to safety detection department and use.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Embodiment
The non-limiting a kind of specific embodiment that discloses the utility model of accompanying drawing further describes as follows in conjunction with accompanying drawing.
Referring to accompanying drawing, 1 among the figure is attaching plug, the 2nd, and fuse, the 3rd, high temperature relay, 3-1 and 3-2 are two groups of normally closed switchs of high temperature relay 3, the 4th, temperature controller, the 5th, low temperature relay, the 6th, thermopair, the 7th, electrical bar.The two ends of said electrical bar 7 are connected with attaching plug 1 after the normal open switch series connection of normally closed switch 3-1,3-2 and the low temperature relay 5 of high temperature relay 3; Thermopair 6 output terminals are connected with the temperature signal input end of temperature controller 4; The coil of high temperature relay 3 is connected with the high temperature signal output terminal of temperature controller 4, and two input ends of low temperature relay 5 are connected with the low-temperature signal output terminal of temperature controller 4.For security needs, can on power firestreak, be connected in series a fuse 2.Said temperature controller 4 is selected PXR7TCY1-8W000 type temperature controller for use, and low temperature relay 5 is selected SSR type solid-state relay for use, and high temperature relay 3 is selected MY2N type relay for use, and electrical bar 7 is chosen the electrically heated rod with 0.5～1.5KW.During use, electrical bar 7 and thermopair 6 are put into low temperature cylinder, the low-temperature working temperature of temperature controller 4 is set in 300
0C, the hot operation temperature is set in 320
0C can make low temperature relay and high temperature relay receive the control of thermopair, and temperature is lower than 300 of setting in bottle
0During C, low temperature relay 5 work makes two output terminals change short-circuit condition into by open-circuit condition and connects the power supply of electrical bar 7 and heat.Temperature is higher than 320 in bottle
0During C, high temperature relay 3 action makes normally closed switch 3-1 and 3-2 become by conducting and breaks off and cut off the power supply of electrical bar 7 and stop heating, goes round and begins again, and can make the temperature in the low temperature cylinder remain on 300～320 of the best
0Between the C, this temperature range can reset as required.
Claims (2)
1. a low temperature cylinder interlayer vacuumizes heating arrangement; Comprise electrical bar and thermopair; It is characterized in that also being included in temperature controller, low temperature relay and high temperature relay; The two ends of said electrical bar are connected with attaching plug after the normal open switch series connection of the normally closed switch of high temperature relay and low temperature relay; The thermopair output terminal is connected with the temperature signal input end of temperature controller, and the coil of high temperature relay is connected with the high temperature signal output terminal of temperature controller, and two signal input parts of low temperature relay are connected with the low-temperature signal output terminal of temperature controller.
2. low temperature cylinder interlayer as claimed in claim 1 vacuumizes heating arrangement; It is characterized in that temperature controller selects PXR7TCY1-8W000 type temperature controller for use; The low temperature relay is selected SSR type solid-state relay for use; The high temperature relay is selected MY2N type relay for use, and electrical bar is chosen the electrically heated rod with 0.5～1.5KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202929620U CN202196339U (en) | 2011-08-12 | 2011-08-12 | Low temperature gas cylinder interlayer vacuum-pumping heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202929620U CN202196339U (en) | 2011-08-12 | 2011-08-12 | Low temperature gas cylinder interlayer vacuum-pumping heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196339U true CN202196339U (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202929620U Expired - Fee Related CN202196339U (en) | 2011-08-12 | 2011-08-12 | Low temperature gas cylinder interlayer vacuum-pumping heating device |
Country Status (1)
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| CN (1) | CN202196339U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819280A (en) * | 2012-08-13 | 2012-12-12 | 河南科技大学 | Local environment temperature control method and device used for ball disc type friction testing machine |
| CN104358999A (en) * | 2014-11-07 | 2015-02-18 | 宜昌江峡船用机械有限责任公司 | Device and method capable of heating and vacuumizing low-temperature container with pearlife interlayer |
| CN108260283A (en) * | 2018-01-17 | 2018-07-06 | 深圳市宝盛自动化设备有限公司 | The constant temperature microscope carrier of FPC bonding machines |
-
2011
- 2011-08-12 CN CN2011202929620U patent/CN202196339U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819280A (en) * | 2012-08-13 | 2012-12-12 | 河南科技大学 | Local environment temperature control method and device used for ball disc type friction testing machine |
| CN102819280B (en) * | 2012-08-13 | 2014-07-02 | 河南科技大学 | Local environment temperature control method and device used for ball disc type friction testing machine |
| CN104358999A (en) * | 2014-11-07 | 2015-02-18 | 宜昌江峡船用机械有限责任公司 | Device and method capable of heating and vacuumizing low-temperature container with pearlife interlayer |
| CN108260283A (en) * | 2018-01-17 | 2018-07-06 | 深圳市宝盛自动化设备有限公司 | The constant temperature microscope carrier of FPC bonding machines |
| CN108260283B (en) * | 2018-01-17 | 2020-12-22 | 深圳市宝盛自动化设备有限公司 | Constant temperature carrying platform of FPC welding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SPECIAL EQUIPMENT SAFETY SUPERCISION INSPECTION IN Free format text: FORMER OWNER: JIANGSU SPECIAL EQUIPMENT SAFETY SUPERVISION + INSPECTION INSTITUTE CHANGZHOU BRANCH INSTITUTE Effective date: 20150512 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150512 Address after: 213016 No. 51 middle Longjiang Road, Jiangsu, Changzhou Patentee after: Jiangsu Special Equipment Vessel Supervisory Institute Address before: 213016 No. 51 middle Longjiang Road, Jiangsu, Changzhou Patentee before: Jiangsu Special Equipment Safety Supervision & Inspection Institute Changzhou Branch Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20160812 |