CN203940231U - Vacuum is heat sink container rises again multiple pressing system - Google Patents
Vacuum is heat sink container rises again multiple pressing system Download PDFInfo
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- CN203940231U CN203940231U CN201420339339.XU CN201420339339U CN203940231U CN 203940231 U CN203940231 U CN 203940231U CN 201420339339 U CN201420339339 U CN 201420339339U CN 203940231 U CN203940231 U CN 203940231U
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Abstract
The utility model relates to the heat sink container regulating system of vacuum, the heat sink container of a kind of vacuum multiple pressing system of rising again is disclosed, comprise storage tank, on storage tank, be connected with main gas pipe, main gas pipe is provided with master control valve, vaporizer, the outer end of main gas pipe is connected with respectively the pipe of rising again, multiple pressure pipe, rise again pipe from main gas pipe end successively through the first compressor, after the first electric heater, be communicated with heat sink interior cooling tube, multiple pressure pipe from main gas pipe end successively through the second electric heater, after reduction valve, be communicated with container, the pipe of rising again is provided with reflow pipe, the outer end cooling tube of reflow pipe is communicated with, on reflow pipe, be also parallel with emptying pipe, emptying pipe is provided with exhaust-valve, on reflow pipe, be provided with reflux valve with the connecting end of the pipe of rising again, the connecting end of Guan Shangyu main gas pipe of rising again is provided with the first control valve, the connecting end of multiple pressure pipe and main gas pipe is provided with the second control valve.Therefore, the utlity model has rise again stable, the time is short, shortens the test period, the process of pressing again can not polluted the beneficial effect of test specimen.
Description
Technical field
The utility model relates to the heat sink container regulating system of vacuum, relates in particular to the heat sink container of a kind of vacuum multiple pressing system of rising again.
Background technique
At present, in space industry ground environment simulation test, cold black high vacuum environment for simulation space, conventionally need vacuum vessel to set up a vacuum environment, the inside assembling is heat sink for heat exchange, in the cooling tube of heat sink inside, by the low temperature liquid nitrogen of circulation, lower the temperature, when test needs can opening or tests for the second time, need vacuum vessel, the heat sink multiple pressure of rising again, the conventional multiple pressure work system architecture of rising again is simple now, after liquid nitrogen vaporization in storage tank, need by just heating after balace weight current stabilization, then pass in heat sink cooling tube, the balace weight current stabilization time is long, thereby the whole time that causes rising again is long, affect the test period, especially some reperformance test tests, after each off-test, need rising again of long period, just can open container tests next time, if the time of rising again is long, can seriously increase the test period, test efficiency is low, pollutant extraneous in the process of pressure again of the prior art easily enters in container, thereby pollutes test specimen, and is not suitable for large-scale vacuum environment simulation facility rewarming and presses again.
Model utility content
The utility model is long in order to overcome vacuum vessel of the prior art multiple pressing system time of rising again of rising again, test period is long, press again process vessel easily to pollute the deficiency of test specimen, provide a kind of rise again stable, the time is short, shorten the test period, the heat sink container of vacuum that the process of pressing again can the not polluted test specimen multiple pressing system of rising again.
To achieve these goals, the utility model adopts following technological scheme:
A kind of vacuum is heat sink container rises again multiple pressing system, comprise storage tank, on described storage tank, be connected with main gas pipe, main gas pipe is provided with master control valve, vaporizer, the outer end of main gas pipe is connected with respectively the pipe of rising again, multiple pressure pipe, the described pipe of rising again from main gas pipe end successively through the first compressor, after the first electric heater, be communicated with heat sink interior cooling tube, described multiple pressure pipe from main gas pipe end successively through the second electric heater, after reduction valve, be communicated with container, on the described pipe of rising again, be positioned at main gas pipe connecting end and be provided with reflow pipe, the outer end of reflow pipe is communicated with the cooling tube in heat sink, on reflow pipe, be also parallel with emptying pipe, emptying pipe is provided with exhaust-valve, on described reflow pipe, be provided with reflux valve with the connecting end of the pipe of rising again, the connecting end of the described Guan Shangyu main gas pipe of rising again is provided with the first control valve, described multiple pressure pipe and the connecting end of main gas pipe are provided with the second control valve.
In container, be at the trial high vacuum, low-temperature condition, after off-test, need the multiple pressure of rising again, now open master control valve, the first control valve, exhaust-valve (exhaust-valve itself is pressure-limit valve), closing volume valve, liquid nitrogen in storage tank is out of shape nitrogen under the effect of vaporizer, nitrogen is successively through the first control valve, the first compressor, after the first electric heater, enter in heat sink interior cooling tube, the first compressor compresses nitrogen, nitrogen reaches 50 degrees Celsius of left and right through the first electric heater temperature after heating, entering into the heat sink interior liquid nitrogen cooling tube discharges from emptying pipe, then open reflux valve, close the first control valve, storage tank and rising again disconnects between pipe, the pipe of rising again is communicated with formation circulation with reflow pipe, liquid nitrogen in heat sink discharge entering in the pipe of rising again, absorb again enter after heat heat sink in, until the temperature of whole container reaches the heating-up temperature that heater is set, liquid nitrogen becomes nitrogen after absorbing heat, volume can expand, cause pressure very large, unnecessary liquid nitrogen, nitrogen discharges from exhaust-valve, when the first control valve is closed, open the second control valve, liquid nitrogen in storage tank enters in container after vaporizer after secondary heater heating, thereby plays the effect of multiple pressure, in whole process, the process of rising again, press again is almost carried out simultaneously, storage tank of main needs, cycling hot exchange in realizing under the effect of compressor while rising again, the cycle of rising again is short, the gas that multiple pressure is is the nitrogen in storage tank, can not pollute test specimen.
As preferably, on the described pipe of rising again, between the first control valve and the first compressor, is also provided with water cooling heat exchanger, the two ends of the first described compressor are respectively equipped with filter.Liquid nitrogen in storage tank becomes nitrogen after vaporizer; the temperature of nitrogen still very low (lower than zero degree) now; cryogenic gas can cause damage to compressor after directly entering compressor; reduce working life and compression efficiency; therefore by after the effect of water cooling heat exchanger; the temperature of nitrogen is tentatively brought up to 5 degree left and right; thereby compressor is played a protective role; also be in order to prevent that, in the overshoot of follow-up electric heater heating, it is heat sink unstable that nitrogen temperature variation is excessive, expansion seriously causes nitrogen to enter simultaneously.
As preferably, on the pipe of rising again, between the first compressor and primary heater, is provided with cooling driers.
As preferably, on the described pipe of rising again, be also provided with the second compressor, the second described compressor and the first compressor parallel, the first described compressor, the inlet end of the second compressor are respectively equipped with relief tube, relief tube is provided with solenoid valve, the outer end of relief tube is communicated with described emptying pipe, on the pipeline between relief tube and the first compressor, the second compressor, is provided with pressure-limit valve.The second compressor and the first compressor synergy, common compressed nitrogen, when in the pipe of rising again, the air pressure of the first compressor, the second compressor inlet end surpasses the rated pressure of pressure-limit valve, solenoid valve is opened automatically, thereby unnecessary gas can be discharged from relief tube, the nitrogen pressure that assurance enters in compressor is stable, guarantees the stable of whole temperature back system.
As preferably, described multiple pressure pipe and the connecting end of container are also provided with vacuum valve, in multiple pressure pipe, between vacuum valve and reduction valve, are provided with air intake branch, and air intake branch is provided with the emergency valve of normally off, and the outer end of air intake branch is provided with filter.
Therefore, the utlity model has rise again stable, the time is short, shortens the test period, the process of pressing again can not polluted the beneficial effect of test specimen.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
In figure: storage tank 1 main gas pipe 2 master control valve 3 vaporizers 4 are risen again and managed 5 multiple pressure pipe 6 reflow pipe 7 emptying pipe 8 exhaust-valve 9 reflux valve 10 relief tube 11 solenoid valve 12 first compressor 51 first electric heater 52 first control valve 53 water cooling heat exchanger 54 filter 55 cooling driers 56 second compressor 57 pressure-limit valve 58 second electric heater 61 reduction valve 62 second control valve 63 vacuum valve 64 air intake branch 65 emergency valves 66.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
The multiple pressing system of rising again of the heat sink container of a kind of vacuum as shown in Figure 1, comprise storage tank 1, on storage tank, be connected with main gas pipe 2, main gas pipe is provided with master control valve 3, vaporizer 4, the outer end of main gas pipe is connected with respectively the pipe 5 of rising again, multiple pressure pipe 6, rise again pipe 5 from main gas pipe end successively through the first compressor 51, after the first electric heater 52, be communicated with heat sink interior cooling tube, multiple pressure pipe 6 from main gas pipe end successively through the second electric heater 61, after reduction valve 62, be communicated with container, the pipe of rising again is positioned at main gas pipe connecting end on 5 and is provided with reflow pipe 7, the outer end of reflow pipe is communicated with the cooling tube in heat sink, on reflow pipe 7, be also parallel with emptying pipe 8, emptying pipe is provided with exhaust-valve 9, on reflow pipe 7, be provided with reflux valve 10 with the connecting end of the pipe of rising again, rise again to manage on 5 and be provided with the first control valve 53 with the connecting end of main gas pipe, multiple pressure pipe 6 is provided with the second control valve 63 with the connecting end of main gas pipe, rise again to manage on 5 and be also provided with water cooling heat exchanger 54 between the first control valve and the first compressor, the two ends of the first compressor are respectively equipped with filter 55, water cooling heat exchanger tentatively heats up to low temperature nitrogen, protect on the one hand compressor, reduce on the other hand the load of follow-up heater, also can extend the working life of heater, on the pipe 5 of rising again, be provided with cooling driers 56 between the first compressor and primary heater, cooling driers can be removed the moisture in temperature back system.
Rise again to manage on 5 and be also provided with the second compressor 57, the second compressor and the first compressor parallel, the first compressor, the inlet end of the second compressor is respectively equipped with relief tube 11, relief tube is provided with solenoid valve 12, the outer end of relief tube is communicated with described emptying pipe, be positioned at relief tube and the first compressor, pipeline between the second compressor is provided with pressure-limit valve 58, the operation of two compressor parallel collaborative compressions, improve nitrogen compression efficiency, thereby the heat exchange in heat sink in enhancing container, shorten and rise again the cycle greatly, simultaneously when entering the air pressure of compressor inlet end when too high, can open solenoid valve, for nitrogen purge, thereby stablizing in maintenance temperature back system, multiple pressure pipe 6 is also provided with vacuum valve 64 with the connecting end of container, in multiple pressure pipe, between vacuum valve and reduction valve, be provided with air intake branch 65, air intake branch is provided with the emergency valve 66 of normally off, the outer end of air intake branch is provided with filter, when the liquid nitrogen in multiple pressure process in storage tank is finished, can open emergency valve, thereby extraneous air is directly entered in container from air intake branch after filter.
By reference to the accompanying drawings, using method of the present utility model is as follows: in container, be at the trial high vacuum, low-temperature condition, after off-test, need the multiple pressure of rising again, now open master control valve, the first control valve, exhaust-valve (exhaust-valve itself is pressure-limit valve), closing volume valve, liquid nitrogen in storage tank is out of shape nitrogen under the effect of vaporizer, nitrogen is successively through the first control valve, water cooling heat exchanger, the first compressor, the first electric heater, after cooling driers, enter in heat sink interior cooling tube, from vaporizer, nitrogen temperature is out subzero 10 degrees Celsius of left and right, nitrogen temperature after water cooling heat exchanger reaches 5 degrees Celsius of left and right, nitrogen reaches 50 degrees Celsius of left and right through the first electric heater temperature after heating, entering into the heat sink interior liquid nitrogen cooling tube discharges from emptying pipe, then open reflux valve, close the first control valve, storage tank and rising again disconnects between pipe, the pipe of rising again is communicated with formation circulation with reflow pipe, liquid nitrogen in heat sink discharge entering in the pipe of rising again, absorb again enter after heat heat sink in, until the temperature of whole container reaches the heating-up temperature that heater is set, liquid nitrogen becomes nitrogen after absorbing heat, volume can expand, cause pressure very large, unnecessary liquid nitrogen, nitrogen discharges from exhaust-valve, when the first control valve is closed, open the second control valve, liquid nitrogen in storage tank enters in container after vaporizer after secondary heater heating, thereby plays the effect of multiple pressure, in whole process, the process of rising again, press again is almost carried out simultaneously, storage tank of main needs, cycling hot exchange in realizing under the effect of compressor while rising again, the cycle of rising again is short, the gas that multiple pressure is is the nitrogen in storage tank, can not pollute test specimen.Therefore, the utlity model has rise again stable, the time is short, shortens the test period, the process of pressing again can not polluted the beneficial effect of test specimen.
Claims (5)
1. the heat sink container of the vacuum multiple pressing system of rising again, comprise storage tank (1), it is characterized in that, on described storage tank, be connected with main gas pipe (2), main gas pipe is provided with master control valve (3), vaporizer (4), the outer end of main gas pipe is connected with respectively the pipe (5) of rising again, multiple pressure pipe (6), the described pipe (5) of rising again from main gas pipe end successively through the first compressor (51), after the first electric heater (52), be communicated with heat sink interior cooling tube, described multiple pressure pipe (6) from main gas pipe end successively through the second electric heater (61), after reduction valve (62), be communicated with container, on the described pipe (5) of rising again, be positioned at main gas pipe connecting end and be provided with reflow pipe (7), the outer end of reflow pipe is communicated with the cooling tube in heat sink, on reflow pipe (7), be also parallel with emptying pipe (8), emptying pipe is provided with exhaust-valve (9), described reflow pipe (7) is upper is provided with reflux valve (10) with the connecting end of the pipe of rising again, the described pipe (5) of rising again connecting end upper and main gas pipe is provided with the first control valve (53), described multiple pressure pipe (6) is provided with the second control valve (63) with the connecting end of main gas pipe.
2. the heat sink container of the vacuum according to claim 1 multiple pressing system of rising again, it is characterized in that, the described pipe (5) of rising again is upper is also provided with water cooling heat exchanger (54) between the first control valve and the first compressor, and the two ends of the first described compressor are respectively equipped with filter (55).
3. the heat sink container of the vacuum according to claim 1 and 2 multiple pressing system of rising again, is characterized in that, the upper cooling driers (56) that is provided with between the first compressor and primary heater of the pipe (5) of rising again.
4. the heat sink container of the vacuum according to claim 1 and 2 multiple pressing system of rising again, it is characterized in that, on the described pipe (5) of rising again, be also provided with the second compressor (57), the second described compressor and the first compressor parallel, the first described compressor, the inlet end of the second compressor are respectively equipped with relief tube (11), relief tube is provided with solenoid valve (12), the outer end of relief tube is communicated with described emptying pipe, on the pipeline between relief tube and the first compressor, the second compressor, is provided with pressure-limit valve (58).
5. the heat sink container of the vacuum according to claim 1 multiple pressing system of rising again, it is characterized in that, described multiple pressure pipe (6) is also provided with vacuum valve (64) with the connecting end of container, in multiple pressure pipe, between vacuum valve and reduction valve, be provided with air intake branch (65), air intake branch is provided with the emergency valve (66) of normally off, and the outer end of air intake branch is provided with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339339.XU CN203940231U (en) | 2014-06-25 | 2014-06-25 | Vacuum is heat sink container rises again multiple pressing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339339.XU CN203940231U (en) | 2014-06-25 | 2014-06-25 | Vacuum is heat sink container rises again multiple pressing system |
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| Publication Number | Publication Date |
|---|---|
| CN203940231U true CN203940231U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420339339.XU Expired - Fee Related CN203940231U (en) | 2014-06-25 | 2014-06-25 | Vacuum is heat sink container rises again multiple pressing system |
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| CN (1) | CN203940231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916931A (en) * | 2020-07-07 | 2022-01-11 | 中国科学院上海硅酸盐研究所 | Device and method for testing hemispherical emissivity of material at extremely low temperature |
-
2014
- 2014-06-25 CN CN201420339339.XU patent/CN203940231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916931A (en) * | 2020-07-07 | 2022-01-11 | 中国科学院上海硅酸盐研究所 | Device and method for testing hemispherical emissivity of material at extremely low temperature |
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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: 20141112 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |