CN102435321B - High-compatibility multi-functional test Duvel for separate Dewar hot load test - Google Patents
High-compatibility multi-functional test Duvel for separate Dewar hot load test Download PDFInfo
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- CN102435321B CN102435321B CN201110354611.2A CN201110354611A CN102435321B CN 102435321 B CN102435321 B CN 102435321B CN 201110354611 A CN201110354611 A CN 201110354611A CN 102435321 B CN102435321 B CN 102435321B
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Abstract
The invention discloses a high-compatibility multi-functional test Duvel for separate Duvel hot load test, which is suitable for hot load test of a separate high-hot-load engineering Duvel and test of the refrigerator coupling effect. The high-compatibility multi-functional test Duvel for the separate Duvel hot load test comprises a cavity cap, a lead disc, a sealing snap ring, a flange seat and the like. A special structure is introduced into the high-compatibility multi-functional test Duvel, and accurate test the static hot load of the separate engineering Duvel is realized through assembly replacing and thermal equivalent methods. A device and an implementing method disclosed by the invention are simple, and have high measuring accuracy, high universality and low cost. The Duvel is suitable for testing the refrigerating amounts of an engineering refrigerator at different refrigerating temperatures and testing the temperature gradients of an elastic cold chain on a cold finger of the engineering refrigerator or carbon paper or other coupling media at different refrigerating temperatures and different transmission cold amounts.
Description
Technical field
The present invention relates to infrared detector dewar assembly manufacturing technology, specifically refer to the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test, it is applicable to the heat load test of the large heat load engineering of separated type Dewar and the test of refrigeration machine coupling effect.
Background technology
Infrared detector dewar assembly has a wide range of applications in the infrared field of space flight.Along with the raising of wavelength to long wave expansion and detection sensitivity, infrared burnt detector must could be worked under profound hypothermia.Due to advantages such as mechanical refrigeration have compact conformation, volume is little, lightweight, refrigerating capacity is large, cooling time is short, cryogenic temperature controlled range is large, such detector mostly adopts mechanical refrigeration mode in the application of space at present.While so also making its application, mostly adopt Dewar encapsulation to form infrared detector dewar assembly.Heat load is the important technical indicator of Dewar component, and it directly affects refrigerating capacity and the needed heat power consumption of AEROSPACE APPLICATION of refrigeration machine.The cold platform of separated type engineering Dewar is connected with the cold junction of refrigeration machine and is fetched the coupling that realizes refrigeration machine and separated type engineering Dewar by elasticity cold chain or carbon paper or other heat transfer medium.The advantage of this coupling scheme is that separated type engineering Dewar and refrigeration machine can develop separately, and technique is not intersected, and interchangeability is strong, and maintenanceability is strong.
Summary of the invention
The object of this invention is to provide the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test, solve the heat load test of large heat load Dewar component and the test problem of Dewar and refrigeration machine coupling effect.
The compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test of the present invention as shown in Figure 1, it mainly comprises: cavity cap 1, lead-in wire disk 2, seal snap ring 3, flange seat 4, refrigeration machine cold finger 5, flange seat rubber seal 6, flange seat screw 7, snap ring rubber seal 8, suture introducing needle 9, lead-in wire disk rubber seal 10, cavity cap screw 11, spring lower lock block 12, lower lock block screw 13, insulating ceramics ring 14, spring upper holder block 15, cold head 16, upper cold screen 17, exhaust tube 18, elasticity cold head 19, movable temperature probe 20, shell fragment 21, movable temperature probe positive wire 22, movable temperature probe negative wire 23, extension line 24, , the six roots of sensation springs such as spring first 25, heating plate positive wire 27, heating plate 29, heating plate negative wire 31, temperature probe negative wire 33, temperature probe 35, temperature probe positive wire 36.Cavity cap 1, lead-in wire disk 2 flange seats 4 and exhaust tube 18 form Dewar shell cavity.Exhaust tube 18 is connected in exhaust tube opening 101 places of cavity cap 1 by vacuum brazing; Cavity cap 1 and 2, lead-in wire disk are used 10 sealings of lead-in wire disk rubber seal, and lead-in wire disk rubber seal 10 is arranged in lead-in wire disk sealing ring recess 204, fixing by cavity cap screw 11; Lead-in wire disk 2 is connected with flange seat external thread 401 by lead-in wire disk internal thread 202 with flange seat 4, and by seal snap ring 3 and 8 sealings of snap ring rubber seal; Seal snap ring 3 is connected with snap ring internal thread 301 by lead-in wire disk external thread 203 with lead-in wire disk 2; Flange seat 4 and flange seat rubber seal 6 sealings for refrigeration machine cold finger 5 chien shihs, and install fixing by flange seat screw 7.Cold head 16 is installed in spring upper holder block 15, and the upper holder block spring mounting hole 1502 of spring 34 one end and spring upper holder block 15 is fixing, and the lower lock block spring mounting hole 1201 of the other end and spring lower lock block 12 is fixing, and all the other five springs are installed so successively; Spring lower lock block 12 is fixing by lower lock block screw 13 with lead-in wire disk 2, on lead-in wire disk 2, has six fairleads 201, and the insulating ceramics ring 14 of hollow is installed in fairlead 201, and suture introducing needle 9 is installed in insulating ceramics ring 14; Use extension line 24 to fix with corresponding suture introducing needle with corresponding spring respectively.Heating plate 29 and temperature probe 35 are installed on cold head upper surface 1601, and heating plate 29 is anodal 26 have been connected heating plate 29 negative poles and spring penta 32 by heating plate positive wire 27 and connect by heating plate negative wire 31 with spring; Temperature probe 35 is anodal to be connected by temperature probe positive wire 36 with spring first 25, and temperature probe 35 negative poles and spring 34 have connected by temperature probe negative wire 33; Upper cold screen 17 is arranged on cold head upper surface 1601, during installation, by the line perforate 1701 that allows on upper cold screen 17, makes upper cold screen 17 dodge out each lead-in wire; Lower cold screen 1501 and the 15 one machine-shapings of spring upper holder block; On lower cold screen 1501, shell fragment 21 is installed, on shell fragment 21 tops, movable temperature probe 20 is installed, movable temperature probe 20 is anodal to be connected by movable temperature probe positive wire 22 with spring the third 28, and movable temperature probe 20 negative poles connect by movable temperature probe negative wire 23 with spring fourth 30.Flange seat rubber seal 6 is placed in flange seat seal groove 402, refrigeration machine cold finger 5 is mounted in the compatible multifunctional testing Dewar of height that cavity cap 1 is not installed, unscrew seal snap ring 3, anchor leg disk 2, Rotation Method for Installation blue 4 regulates cold head 16 to flange seat 4 distances, make the elasticity cold head 19 of cold head 16 laminating refrigeration machine cold fingers 5, continue turn flange seat 4, regulate the snap-in force of 16 pairs of elasticity cold heads 19 of cold head, screwing hermetic snap ring 3 after adjusting, use flange seat screw 7 mounting flange seats 4 and refrigeration machine cold finger 5, adjusting activity temperature probe 20 positions make on the cold head 501 of its laminating refrigeration machine cold finger 5, finally lead-in wire disk rubber seal 10 being placed in lead-in wire disk sealing groove 204 uses cavity cap screw 11 to seal fixed cavity caps 1, use vacuum pumping hardware by exhaust tube 18, this high compatible multifunctional testing Dewar to be vacuumized, and keep vacuum state.Complete the test that just can be correlated with after above-mentioned steps.
The implementation method of this device is as follows:
1) according to a kind of assemble sequence of each parts of the compatible multifunctional testing Dewar of height for separated type Dewar heat load test, complete the assembling of cavity cap 1, lead-in wire disk 2, seal snap ring 3, flange seat 4 and inner components and fix;
2) use liquid nitrogen weight method to record high compatible multifunctional testing Dewar intrinsic heat load Q
0;
3) select an adaptive refrigeration machine of suitable engineering Dewar and separated type engineering Dewar to be measured coupling, use the adaptive refrigeration machine of engineering Dewar to freeze to separated type engineering Dewar to be measured, by regulating refrigeration machine control box, separated type engineering Dewar to be measured is freezed to its working temperature (as 80K) and reaches thermal equilibrium, record the now performance number of refrigeration machine;
4) the adaptive refrigeration machine of engineering Dewar and separated type engineering Dewar to be measured are split, and by the adaptive refrigeration machine of engineering Dewar and high compatible multifunctional testing Dewar coupling, use the adaptive refrigeration machine of engineering Dewar to freeze to the compatible multifunctional testing Dewar of height, regulate refrigeration machine control box, make the power of the adaptive refrigeration machine of engineering Dewar identical with the performance number of the refrigeration machine recording before;
5) to heating plate 29 energisings, regulate its current value size to make the temperature that temperature probe 35 records locate to reach balance in the working temperature (80K) of separated type engineering Dewar 1 to be measured, record now current value and the magnitude of voltage of heating plate 29, calculate its heating power Q
j, and the temperature value that records of the movable temperature probe 20 of record, can obtain the thermograde of elasticity cold chain under this refrigerating capacity.
6) calculate the heat load Q of separated type engineering Dewar to be measured
x, equal the intrinsic heat load Q of high compatible multifunctional testing Dewar
0heating power Q with heating plate 29
jsum, i.e. Q
x=Q
0+ Q
j.
Advantage of the present invention is:
1) structure of the present invention and implementation method are simple, and measuring accuracy is high, and highly versatile is with low cost;
2) the present invention can measure the heat load value of large heat load engineering Dewar component;
3) the present invention is equally also applicable to the test of the thermograde under different cryogenic temperatures and different transmission cold of elasticity cold chain or carbon paper or other couplant on refrigeration machine cold finger for engineering;
4) the present invention can high compatible multifunctional testing Dewar and the coupling effect of refrigeration machine.
Accompanying drawing explanation
Fig. 1 is a kind of compatible multifunctional testing Dewar of height schematic diagram for separated type Dewar heat load test.
In figure:
1-cavity cap;
101-extraction opening;
The 2-disk that goes between;
201-fairlead;
202-lead-in wire disk internal thread;
203-lead-in wire disk external thread;
204-lead-in wire disk sealing groove;
3-seal snap ring;
301-snap ring internal thread;
4-flange seat;
401-flange seat external thread;
402-flange seat seal groove;
5-refrigeration machine cold finger;
501-cold head;
6-flange seat rubber seal;
7-flange seat screw;
8-snap ring rubber seal;
9-suture introducing needle;
10-lead-in wire disk rubber seal;
11-cavity cap screw;
12-spring lower lock block;
1201-lower lock block spring mounting hole;
13-lower lock block screw;
14-insulating ceramics ring;
15-spring upper holder block;
Cold screen under 1501-;
1502-upper holder block spring mounting hole;
16-cold head;
1601-cold head upper surface;
The upper cold screen of 17-;
1701-allows line perforate;
18-exhaust tube;
19-elasticity cold head;
The movable temperature probe of 20-;
21-shell fragment;
The movable temperature probe positive wire of 22-;
The movable temperature probe negative wire of 23-;
24-extension line;
25-spring first;
26-spring;
27-heating plate positive wire;
28-spring third;
29-heating plate;
30-spring fourth;
31-heating plate negative wire;
32-spring penta;
33-temperature probe negative wire;
34-spring;
35-temperature probe;
36-temperature probe positive wire.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:
Embodiment is the heat load test of certain large heat load (it is estimated that heat load value is greater than 1.5 watts) infrared detector focal plane Dewar component, and as shown in Figure 1, its main implementation method is as follows:
1, preparation method and the assemble sequence of a kind of each parts of the compatible multifunctional testing Dewar of height for separated type Dewar heat load test of the present invention are as follows:
A) cavity cap 1 material is stainless steel 304 L, and exhaust tube 18 is the oxygen-free copper pipe of the long 60mm of external diameter 6mm internal diameter 4mm, uses soldering oven to be brazed to exhaust tube opening 101 places of cavity cap 1 exhaust tube 18, uses leak locator check weld, and leak rate reaches 1.0 * 10
-11torrl/s magnitude, meets request for utilization, and cavity cap 1 inside surface is carried out to polishing;
B) lead-in wire disk 2 materials are 4J29, use soldering oven to be soldered to fairlead 201 places on insulating ceramics ring 14 and suture introducing needle 9, and circumferencial direction is uniformly distributed and has six groups, use leak locator check weld, and leak rate reaches 2.0 * 10
-11torrl/s magnitude, meets request for utilization, and lead-in wire disk 2 cards are carried out to polishing;
C) cold head 16 materials are oxygen-free copper, twin polishing, and spring upper holder block 15 is used polytetrafluoroethylmaterial material, cold head 16 is embedded in spring upper holder block 15 to spring upper holder block 15 and cold head 16 interference fit;
D) use low temperature glue that heating plate 29 and temperature probe 35 are pasted on cold head upper surface 1601, temperature probe 35 is selected thermometric Pt resistance, use electric soldering iron by heating plate positive wire 27, heating plate negative wire 31, temperature probe positive wire 36 and temperature probe negative wire 33 respectively indium be welded to the both positive and negative polarity of heating plate 29 and the both positive and negative polarity of temperature probe 35;
E) upper cold screen 17 be stainless steel material, and inside and outside polishing, is mounted to upper cold screen 17 on cold head upper surface 1601, during installation, each lead-in wire is drawn from allowing line perforate 1701, uses the fixing cold screen 17 of low temperature glue and cold head 16; Movable temperature probe 20 is selected thermometric Pt resistance, use electric soldering iron indium to be welded on the both positive and negative polarity of movable temperature probe 20 movable temperature probe positive wire 22 and movable temperature probe negative wire 23 respectively, shell fragment 21 is that the stainless steel of the long 20mm of 1mm * 2mm is rectangular, use low temperature glue movable temperature probe 20 to be affixed to one end of shell fragment 21, use low temperature glue to the lower cold screen 1501 of spring upper holder block 15 other end of shell fragment 21; The each several part that is stained with above low temperature glue is put into electronic dry case cold curing 12 hours;
F) six roots of sensation spring specification length such as spring first 25 is consistent, and the upper holder block spring mounting hole 1502 by spring one end of 34 through spring upper holder block 15, is used vice to be pressed abd fixed on spring upper holder block 15; The lower lock block spring mounting hole 1201 that spring 34 the other end is passed to spring lower lock block 12, is used vice to be pressed abd fixed on spring lower lock block 12; Use same method that all the other five springs are fixed on spring upper holder block 15 and spring lower lock block 12 successively;
G) use and to press down fast screw 13 and spring is pressed down to fast 12 install and be fixed on lead-in wire disk;
H) use electric soldering iron by heating plate positive wire 27, heating plate negative wire 31, temperature probe positive wire 36 and temperature probe negative wire 33 respectively indium be welded to spring 26, spring penta 32, spring first 25 and spring 34, by movable temperature probe positive wire 22 and movable temperature probe negative wire 23 respectively indium be welded to spring the third 28 and spring fourth 30; By extension line, by each spring, corresponding indium solid welding is fixed one by one with respectively drawing pin again;
I) seal snap ring 3 is enclosed within on the cylinder of flange seat 4, then puts snap ring rubber seal 8, snap ring rubber seal 8 is evenly coated with vacuum silicone grease, and flange seat external thread 301 is screwed in lead-in wire disk internal thread 202, screws in about 10mm; Seal snap ring internal thread 301 is threaded on lead-in wire disk external thread 203, is torqued-up to and blocks snap ring rubber seal 8.Lead-in wire disk rubber seal 10 is evenly smeared to vacuum silicone grease and put into lead-in wire disk sealing groove 204, use cavity cap screw 11 fixed cavity caps 1 and lead-in wire disk 2.
2, in the present invention, a kind of process of the adaptive refrigeration machine of the compatible multifunctional testing Dewar of high assembly project Dewar for separated type Dewar heat load test is as follows:
A) dismounting lower chamber cap 1, unscrews seal snap ring 3, and the flange seat rubber seal 6 that is evenly coated with vacuum silicone grease is placed in flange seat seal groove 402;
B) refrigeration machine cold finger 5 is installed in high compatible multifunctional testing Dewar, anchor leg disk 2, when guaranteeing flange seat 4 bottom surfaces and the laminating of refrigeration machine installed surface, observe the position relationship of 16 of elasticity cold heads 19 and cold head on refrigeration machine cold finger 5, the position relationship that rotary flange seat 4 adjustable elastic cold heads 19 and cold head are 16; According to requirement of experiment, rotary flange seat 4, regulates the snap-in force of 16 pairs of elasticity cold heads 19 of cold head big or small; Screwing hermetic snap ring 3, is used the fixing high compatible multifunctional testing Dewar of flange seat screw 7 and the adaptive refrigeration machine of engineering Dewar;
C) use tip tweezers to regulate shell fragment 21 to make movable temperature probe be adjacent to cold head 501 parts of refrigeration machine, use cavity cap screw 11 fixed cavity caps 1 and lead-in wire disk 2, complete the installation of high compatible multifunctional testing Dewar.
3, certain separated type engineering Dewar to be measured (it is estimated that heat load value is greater than 1.5 watts) is carried out to the process of heat load test as follows:
A) use liquid nitrogen weight method to record a kind of compatible multifunctional testing Dewar of height intrinsic heat load Q for separated type Dewar heat load test
0=135mw; The parameter of the adaptive refrigeration machine of engineering Dewar of selecting is rated voltage 28v, P
max=240W, η=0.85;
B) by separated type engineering Dewar to be measured and the adaptive refrigeration machine coupling of engineering Dewar, use the adaptive refrigeration machine of engineering Dewar to freeze to separated type engineering Dewar to be measured, by regulating refrigeration machine control box, separated type engineering Dewar to be measured is freezed to its working temperature (working temperature of this separated type engineering Dewar to be measured is 80K) and reaches thermal equilibrium, record the now performance number P=80W of the adaptive refrigeration machine of engineering Dewar;
C) the adaptive refrigeration machine of engineering Dewar and separated type engineering Dewar to be measured are split, and by the adaptive refrigeration machine of engineering Dewar and high compatible multifunctional testing Dewar coupling, use the adaptive refrigeration machine of engineering Dewar to freeze to the compatible multifunctional testing Dewar of height, regulate refrigeration machine control box, make the performance number of the adaptive refrigeration machine of engineering Dewar identical with the performance number P=80W recording before;
D) to heating plate 29 energisings, regulate its current value size to make the temperature that temperature probe 35 records locate to reach balance in the working temperature (80K) of separated type engineering Dewar to be measured, record now current value and the magnitude of voltage of heating plate 29, calculate its heating power Q
j=1.992W, and the temperature value T=78.5K that records of the movable temperature probe 20 of record, can obtain the thermograde of elasticity cold chain under this refrigerating capacity.
E) calculate the heat load Q of separated type engineering Dewar to be measured
x, equal the intrinsic heat load Q of high compatible multifunctional testing Dewar
0heating power Q with heating plate 29
jsum, i.e. Q
x=Q
0+ Q
j=2.127W.
Below just completed the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test and realized the method that the heat load of separated type Dewar is tested, having solved the heat load test of large heat load engineering Dewar component and the test problem of Dewar and refrigeration machine coupling effect.
Claims (10)
1. for the compatible multifunctional testing Dewar of height of separated type Dewar heat load test, comprising: cavity cap (1), lead-in wire disk (2), seal snap ring (3), flange seat (4), flange seat rubber seal (6), flange seat screw (7), snap ring rubber seal (8), suture introducing needle (9), lead-in wire disk rubber seal (10), cavity cap screw (11), spring lower lock block (12), lower lock block screw (13), insulating ceramics ring (14), spring upper holder block (15), cold head (16), upper cold screen (17), exhaust tube (18), elasticity cold head (19), movable temperature probe (20), shell fragment (21), movable temperature probe positive wire (22), movable temperature probe negative wire (23), extension line (24), spring first-spring is six roots of sensation spring, heating plate positive wire (27), heating plate (29), heating plate negative wire (31), temperature probe negative wire (33), temperature probe (35) and temperature probe positive wire (36), is characterized in that:
Described cavity cap (1), lead-in wire disk (2), flange seat (4) and exhaust tube (18) form Dewar shell cavity, and the exhaust tube opening (101) that exhaust tube (18) is connected in cavity cap (1) by vacuum brazing is located; Between cavity cap (1) and lead-in wire disk (2), use lead-in wire disk rubber seal (10) sealing, lead-in wire disk rubber seal (10) is arranged in lead-in wire disk sealing ring recess (204), fixing by cavity cap screw (11); Lead-in wire disk (2) is connected with flange seat external thread (401) by lead-in wire disk internal thread (202) with flange seat (4), and by seal snap ring (3) and snap ring rubber seal (8) sealing; Seal snap ring (3) is connected with snap ring internal thread (301) by lead-in wire disk external thread (203) with lead-in wire disk (2); Flange seat (4) and flange seat rubber seal (6) sealing for refrigeration machine cold finger (5) chien shih, and by flange seat screw (7), install fixing; Cold head (16) is installed in spring upper holder block (15), the spring upper holder block spring mounting hole (1502) of (34) one end and spring upper holder block (15) is fixing, the lower lock block spring mounting hole (1201) of the other end and spring lower lock block (12) is fixing, and penta 5 springs of all the other spring first-springs are installed so successively; Spring lower lock block (12) is fixing by lower lock block screw (13) with lead-in wire disk (2), on lead-in wire disk (2), have six fairleads (201), the insulating ceramics ring (14) of hollow is installed in fairlead (201), suture introducing needle (9) is installed in insulating ceramics ring (14); Use extension line (24) to fix with corresponding suture introducing needle with corresponding spring respectively; It is upper that heating plate (29) and temperature probe (35) are installed on cold head upper surface (1601), and heating plate (29) positive pole connects heating plate (29) negative pole with spring second (26) by heating plate positive wire (27) and connects by heating plate negative wire (31) with spring penta (32); Temperature probe (35) is anodal to be connected by temperature probe positive wire (36) with spring first (25), and temperature probe (35) negative pole and spring oneself (34) connect by temperature probe negative wire (33); It is upper that upper cold screen (17) is arranged on cold head upper surface (1601), during installation, by the line perforate (1701) that allows on upper cold screen (17), makes upper cold screen (17) dodge out each lead-in wire; Lower cold screen (1501) and spring upper holder block (15) one machine-shaping; Shell fragment (21) is installed on lower cold screen (1501), on shell fragment (21) top, movable temperature probe (20) is installed, movable temperature probe (20) is anodal to be connected by movable temperature probe positive wire (22) with spring third (28), and movable temperature probe (20) negative pole connects by movable temperature probe negative wire (23) with spring fourth (30); Flange seat rubber seal (6) is placed in flange seat seal groove (402);
Refrigeration machine cold finger (5) is mounted in the compatible multifunctional testing Dewar of height that cavity cap (1) is not installed, unscrew seal snap ring (3), anchor leg disk (2), Rotation Method for Installation blue (4) regulates cold head (16) to flange seat (4) distance, make the elasticity cold head (19) of cold head (16) laminating refrigeration machine cold finger (5), continue turn flange seat (4), regulate the snap-in force of cold head (16) to elasticity cold head (19), screwing hermetic snap ring (3) after adjusting, use flange seat screw (7) mounting flange seat (4) and refrigeration machine cold finger (5), adjusting activity temperature probe (20) position makes on the cold head (501) of its laminating refrigeration machine cold finger (5), the disk rubber seal that finally will go between (10) is placed in lead-in wire disk sealing groove (204) uses cavity cap screw (11) to seal fixed cavity cap (1), use vacuum pumping hardware by exhaust tube (18), this high compatible multifunctional testing Dewar to be vacuumized, and keep vacuum state.
2. the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test according to claim 1, is characterized in that: described cavity cap (1) material is stainless steel 304 L, and cavity cap (1) inside surface is carried out to polishing.
3. the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test according to claim 1, is characterized in that: described exhaust tube (18) is the oxygen-free copper pipe of the long 60mm of external diameter 6mm internal diameter 4mm.
4. the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test according to claim 1, is characterized in that: described lead-in wire disk (2) material is 4J29, and lead-in wire disk (2) card is carried out to polishing.
5. the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test according to claim 1, is characterized in that: described cold head (16) material is oxygen-free copper, twin polishing.
6. the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test according to claim 1, is characterized in that: described spring upper holder block (15) is used polytetrafluoroethylmaterial material.
7. the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test according to claim 1, is characterized in that: described temperature probe (35) is selected thermometric Pt resistance, and movable temperature probe (20) is selected thermometric Pt resistance.
8. the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test according to claim 1, is characterized in that: described upper cold screen (17) is stainless steel material, inside and outside polishing.
9. the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test according to claim 1, is characterized in that: the stainless steel that described shell fragment (21) is the long 20mm of 1mm * 2mm is rectangular.
10. the compatible multifunctional testing Dewar of a kind of height for separated type Dewar heat load test according to claim 1, is characterized in that: described seal snap ring (3) and flange seat (4) adopt stainless steel material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110354611.2A CN102435321B (en) | 2011-11-10 | 2011-11-10 | High-compatibility multi-functional test Duvel for separate Dewar hot load test |
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|---|---|---|---|
| CN201110354611.2A CN102435321B (en) | 2011-11-10 | 2011-11-10 | High-compatibility multi-functional test Duvel for separate Dewar hot load test |
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| CN102435321B true CN102435321B (en) | 2014-08-13 |
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| US5906101A (en) * | 1997-10-30 | 1999-05-25 | University Of Alberta | Dewar flask-compatible storage system and method of use thereof |
| CN201130058Y (en) * | 2007-11-30 | 2008-10-08 | 中国航天科工集团第三研究院第八三五八研究所 | Infrared detector cantalever dewar soft support structure |
| CN201331659Y (en) * | 2008-12-22 | 2009-10-21 | 中国航天科技集团公司第五研究院第五一○研究所 | Satellite-ground compatible dewar adaptable to two refrigeration methods |
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