CN108225066B - Loading equipment for surface low-temperature test - Google Patents

Loading equipment for surface low-temperature test Download PDF

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Publication number
CN108225066B
CN108225066B CN201810284247.9A CN201810284247A CN108225066B CN 108225066 B CN108225066 B CN 108225066B CN 201810284247 A CN201810284247 A CN 201810284247A CN 108225066 B CN108225066 B CN 108225066B
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Prior art keywords
heat conduction
airtight
test
stirling motor
heat
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CN201810284247.9A
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Chinese (zh)
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CN108225066A (en
Inventor
程路
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Ningbo China Stirling Engine Manufacturing Co ltd
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Ningbo China Stirling Engine Manufacturing Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02GHOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00Hot gas positive-displacement engine plants
    • F02G1/04Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053Component parts or details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02GHOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00Hot gas positive-displacement engine plants
    • F02G1/04Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053Component parts or details
    • F02G1/0535Seals or sealing arrangements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

The invention provides loading equipment for surface low-temperature test, and belongs to the technical field of temperature control. The loading equipment for the surface low-temperature test comprises a casing with a foot pad, wherein a Stirling motor with a cold end arranged downwards is connected in the casing through a suspension structure, a heat conduction table which is arranged in a barrel shape and filled with liquid heat conducting medium is arranged at the bottom of the Stirling motor, the cold end of the Stirling motor is inserted into the heat conducting medium, and an airtight soft connection structure is arranged between the cold end and a barrel opening of the heat conduction table; according to the invention, through arranging the foot pad, the hanging structure and the heat conducting medium, the vibration in operation is eliminated, the test effect is improved, meanwhile, the sealing structure is arranged, the heat insulating layer is sleeved on the outer wall of the heat conducting table, so that the temperature loss is effectively prevented, pollutants are prevented from being mixed into the heat conducting medium to influence the temperature conduction, the volatilization and leakage of the heat conducting medium are prevented, and the use cost is reduced.

Description

Loading equipment for surface low-temperature test
Technical Field
The invention relates to the technical field of temperature control, in particular to loading equipment for surface low-temperature testing.
Background
At constant temperature, since the properties of the article remain consistent, in test applications, measurements are typically taken in a constant temperature environment.
Traditionally, keep the homothermal mode of article for with constant temperature equipment direct with the article connection to for guaranteeing that constant temperature effect is better, common constant temperature equipment and the laminating of article plane, and the laminating face is better, and constant temperature lasts the effect better. Therefore, for the plate-type test material, a heat conduction table is provided, and temperature adjustment is performed by using a temperature device which is easy to control, so that constant temperature holding of the test material is realized. And has been widely used in the surface low-temperature treatment process because of its characteristic of easy temperature adjustment and stable temperature maintenance. The existing use mode is that dry ice and heat conducting medium are directly placed in a heat conduction table, so that the temperature cannot be regulated at a low temperature constant temperature, the duration is limited, the later temperature is not stable enough, or the cold end of a Stirling motor is directly placed in the heat conduction table in an inverted mode, the heat conducting medium is arranged in the heat conduction table, but the vibration of the Stirling motor is strong, so that a test material vibrates, the measurement is affected, the Stirling motor is easy to damage, the heat conducting medium is easy to leak, pollutants are easy to fall in the heat conducting medium, the heat conducting effect is affected, and the long-term use cost is high.
Disclosure of Invention
The utility model provides a loading equipment to the above-mentioned problem that exists among the prior art, now aim at providing a surface low temperature test, with setting up a casing, set up the Stirling motor that has the suspension in the casing, the bottom of casing is provided with the stabilizer blade, be provided with the callus on the sole on the stabilizer blade, and set up at the cold junction of Stirling motor and be provided with the heat conduction platform, and set up heat conduction medium in the heat conduction platform, simultaneously, the top of heat conduction platform is provided with airtight soft connection structure and Stirling motor's cold junction connection and forms sealedly, can eliminate the vibration that the Stirling motor produced in the use, be convenient for measure, simultaneously also can adjust the temperature and maintain constant temperature, and constant temperature maintenance time is long, and be provided with airtight soft connection structure between heat conduction platform and the Stirling motor's the cold junction, effectively prevented the leakage and volatilizing and being polluted of heat conduction medium, promote the conduction effect, reduce use cost.
The specific technical scheme is as follows:
A loading apparatus for cryogenic testing of a surface, having the features comprising: the heat conduction device comprises a shell, a Stirling motor and a heat conduction table, wherein the Stirling motor is vertically arranged in the shell, a cold end of the Stirling motor is arranged downwards, a hanging structure is arranged between the shell and the Stirling motor, meanwhile, the heat conduction table is arranged at the bottom of the Stirling motor and is in a barrel shape, a heat conduction medium is arranged in a barrel of the heat conduction table, the cold end stretches into a barrel opening of the heat conduction table and is immersed in the heat conduction medium, an upper airtight encircling device is sleeved on the cold end of the Stirling motor, a lower airtight encircling device is sleeved on the barrel opening of the heat conduction table, and an airtight soft connecting structure is arranged between the upper airtight encircling device and the lower airtight encircling device to form an airtight space between the heat conduction table and the cold end.
The loading equipment for the surface low-temperature test comprises an upper airtight encircling device, wherein a material injection hole is formed in the upper airtight encircling device, and a sealing plug is arranged on the material injection hole.
The loading equipment for the surface low-temperature test comprises an upper airtight encircling device and a lower airtight encircling device which are of hoop structures.
The loading equipment for the surface low-temperature test is characterized in that a heat insulation layer is sleeved on the outer barrel wall of the heat conduction table.
The loading equipment for the surface low-temperature test comprises a cylindrical heat insulation layer, wherein the inner wall of the heat insulation layer is attached to the outer barrel wall of the heat conduction table.
The loading device for the surface low-temperature test comprises a heat insulation layer, a lower airtight encircling device, a heat conduction table and a loading device, wherein the heat insulation layer is lower than the barrel opening of the heat conduction table, and the lower airtight encircling device is arranged at the barrel opening of the heat conduction table and is positioned on the upper portion of the heat insulation layer.
The loading equipment for the surface low-temperature test comprises a casing, wherein a control structure, a vent and a fan are arranged on the casing, the fan is arranged at the vent, and the control structure is arranged on the side wall beside the vent.
The loading equipment for the surface low-temperature test comprises supporting legs arranged at the bottom of the shell, each supporting leg is provided with a foot pad, and meanwhile, the bottom surface of each foot pad and the bottom surface of the barrel bottom of the heat conduction platform are located in the same plane, and each foot pad is a soft cushion.
The loading equipment for the surface low-temperature test comprises a heat conduction table, wherein the bottom surface of the bottom of the heat conduction table is a test surface, and the test surface is attached to the surface of a test material.
The loading device for the surface low-temperature test, wherein the heat conducting medium is liquid.
The technical scheme has the positive effects that: through the casing that has stabilizer blade, callus on the sole, both be convenient for the placing of Stirling motor, and combine elasticity suspended structure, effectively eliminated the vibration, guarantee the accuracy and the convenience of test, simultaneously, adopt liquid heat conduction medium to carry out temperature transfer between the cold junction with heat conduction platform and Stirling motor, also can reduce the conduction of vibration, and be provided with airtight flexible connection structure between the bung hole of heat conduction platform and cold junction and seal, and be provided with the feed supplement that the material filling mouth carries out heat conduction medium, can prevent that the pollutant from mixing into heat conduction medium in, promote conduction effect, can also prevent heat conduction medium's revealing, reduce use cost.
Drawings
FIG. 1 is a block diagram of an embodiment of a loading apparatus for surface cryogenic testing of the present invention;
Fig. 2 is an enlarged view of a portion a in fig. 1.
In the accompanying drawings: 1. a housing; 11. a support leg; 12. foot pads; 2. a Stirling motor; 21. a cold end; 3. a hanging structure; 4. a hot side heat sink; 5. a control structure; 6. a heat conduction stage; 61. a test surface; 62. a heat insulating layer; 7. testing the material; 8. a heat-conducting medium; 91. an upper airtight encircling device; 92. a lower airtight encircling device; 911. a material injection port; 912. a sealing plug; 10. an airtight flexible connection structure.
Detailed Description
In order to make the technical means, the creation features, the achievement of the purposes and the effects of the present invention easy to understand, the following embodiments specifically describe the technical solution provided by the present invention with reference to fig. 1 to 2, but the following disclosure is not limited to the present invention.
FIG. 1 is a block diagram of an embodiment of a loading apparatus for surface cryogenic testing of the present invention; fig. 2 is an enlarged view of a portion a in fig. 1. As shown in fig. 1 and 2, the loading device for surface low-temperature testing provided in this embodiment includes: the casing 1 of vertical setting, the bottom of casing 1 is provided with stabilizer blade 11, and be provided with callus on the sole 12 on stabilizer blade 11, and when the test, place casing 1 on test material 7, and the bottom surface of callus on the sole 12 is laminated with test material 7, be provided with Stirling motor 2 in the casing 1, stirling motor 2 vertical setting, and Stirling motor 2's cold junction 21 sets up downwards, simultaneously, be provided with heat conduction platform 6 in Stirling motor 2's bottom, stirling motor 2's cold junction 21 stretches into in the heat conduction platform 6, and heat conduction platform 6 places on test material 7, heat conduction platform 6's bottom surface and test material 7 laminating, be provided with heat-conducting medium 8 in the heat conduction platform 6, to transfer on test material 7 again after carrying out surface low temperature processing and shock attenuation, and, be provided with airtight encircling device and airtight soft connection structure 10 between cold junction 21 and heat conduction platform 6, influence temperature conduction and temperature loss in the contaminated medium has effectively been prevented, and the cost of using is reduced to also prevent that the conduction medium from revealing.
Specifically, be provided with suspended structure 3 between Stirling motor 2 and the casing 1, suspended structure 3 is elastic structure, has effectively alleviateed the vibration that Stirling motor 2 produced in the use through suspended structure 3 to combine the callus on sole 12 that sets up on casing 1 bottom stabilizer blade 11, and heat conduction medium 8 in the heat conduction platform 6, eliminated Stirling motor 2 when using to test material 7's vibration influence, thereby promoted the test effect.
Specifically, the heat conduction platform 6 is barrel-shaped setting, the barrel head of heat conduction platform 6 is big flat plate structure setting, at this moment, the bottom surface of the barrel head of heat conduction platform 6 is test surface 61, test surface 61 is in the laminating of test material 7's surface, realize temperature conduction, the bottom surface of callus on the sole 12 and the test surface 61 of barrel head are in the coplanar, guarantee the surface of test material 7 of heat conduction platform 6's test surface 61 contact all the time, the high efficiency of temperature conduction has been realized, heat-conducting medium 8 sets up in the barrel of heat conduction platform 6, and be equipped with insulating layer 62 on the outer wall of heat conduction platform 6, preferably, insulating layer 62 is the tube-shape setting, the inner wall of insulating layer 62 is laminated with the outer barrel wall of heat conduction platform 6, the excessive loss of cold junction 21 transfer of Stirling motor 2 has effectively been prevented on heat conduction platform 6, guarantee the stability of temperature transfer.
More specifically, the airtight encircling device comprises an upper airtight encircling device 91 and a lower airtight encircling device 92, the upper airtight encircling device 91 is sleeved on the cold end 21 of the Stirling motor 2, and the lower airtight encircling device 92 is arranged on the outer wall of the barrel opening of the heat conduction table 6, at this time, the height of the heat insulation layer 62 on the heat conduction table 6 is lower than that of the barrel opening, and the lower airtight encircling device 92 is arranged on the barrel opening of the heat conduction table 6 and is positioned on the upper portion of the heat insulation layer 62, so that the structure is more reasonable, and the airtight soft connection structure 10 is arranged between the upper airtight encircling device 91 and the lower airtight encircling device 92, so that the airtight soft connection structure 10 seals the space between the barrel opening of the heat conduction table 6 and the cold end 21 of the Stirling motor 2, thereby ensuring that external pollutants cannot be mixed into the heat conduction medium 8 to influence conduction, and simultaneously, the leakage or volatilization of the heat conduction medium 8 can be prevented, the use cost can be reduced, excessive loss of temperature can be prevented, and the vibration transmission can be prevented through the airtight soft connection structure 10, and the structure is more reasonable.
More specifically, the upper airtight encircling device 91 is provided with a material injection hole 911, and the material injection hole 911 is provided with a sealing plug 912, so that the heat conducting medium 8 in the heat conducting table 6 can be supplemented after long-term use, and the sealing plug 912 can also conveniently open and seal the material injection hole 911, so that the operation is more convenient.
More specifically, the ventilation opening is formed in the machine shell 1, a fan is arranged at the ventilation opening, a hot end radiator 4 is arranged on the hot end of the Stirling motor 2 to quicken heat dissipation of the Stirling motor 2, and meanwhile, a control structure 5 is arranged on the machine shell 1 and on the side wall located beside the ventilation opening to realize temperature regulation and constant temperature setting, so that the operation is more convenient.
In a preferred embodiment, the material of the test surface 61 of the heat conduction table 6 is copper or silver, so that the conduction effect is good, and the stability of temperature can be ensured.
As the preferred embodiment, the airtight encircling device is of a hoop structure, is rapid to assemble and disassemble, and can clamp the airtight flexible connection structure 10, so that the airtight performance is higher.
As a preferred embodiment, the airtight flexible connection structure 10 is a rubber or metal corrugated pipe, and has good elasticity, strong plasticity and good effects in shock absorption and sealing.
As a preferred embodiment, the foot pad 12 provided on the leg 11 of the casing 1 is a cushion, and the foot pad 12 is rubber or soft plastic, and the shock absorbing effect can be well achieved.
In a preferred embodiment, the heat conducting medium 8 in the tub of the heat conducting table 6 is liquid, and the material is alcohol or mercury, so that the heat conducting medium is excellent in vibration absorbing effect and temperature conductivity, low in cost and easy to obtain.
As a preferred embodiment, the heat insulating layer 62 sleeved on the outer wall of the heat conduction table 6 is made of polyurethane or foam material, has good heat insulation effect, is low in cost, and is easy to plasticity and produce.
The loading device for surface low-temperature test provided by the embodiment comprises a casing 1 with a foot pad 12, wherein a Stirling motor 2 with a cold end 21 arranged downwards is connected in the casing 1 through a suspension structure 3, a heat conduction table 6 which is arranged in a barrel shape and is filled with a liquid heat conducting medium 8 is arranged at the bottom of the Stirling motor 2, the cold end 21 of the Stirling motor 2 is inserted into the heat conducting medium 8, and an airtight soft connection structure 10 is arranged between the cold end 21 and the barrel mouth of the heat conduction table 6; through setting up callus on sole 12, suspended structure 3 and heat-conducting medium 8, realized the elimination to the vibration in the operation, promote test effect, simultaneously, set up seal structure to the cover is established insulating layer 62 on heat conduction platform 6 outer wall, has effectively prevented the loss of temperature, and also can prevent that the pollutant from mixing in heat-conducting medium 8 and influencing the temperature conduction, can also prevent the volatilization and the revealing of heat-conducting medium 8, reduce use cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.

Claims (10)

1. A loading apparatus for cryogenic testing of a surface, comprising: the heat conduction device comprises a shell, a Stirling motor and a heat conduction table, wherein the Stirling motor is vertically arranged in the shell, the cold end of the Stirling motor is arranged downwards, a hanging structure is arranged between the shell and the Stirling motor, meanwhile, the bottom of the Stirling motor is provided with the heat conduction table, the heat conduction table is in a barrel shape, a heat conduction medium is arranged in a barrel of the heat conduction table, the cold end stretches into a barrel opening of the heat conduction table and is immersed in the heat conduction medium, an upper airtight encircling device is sleeved on the cold end of the Stirling motor, a lower airtight encircling device is sleeved on the barrel opening of the heat conduction table, and meanwhile, an airtight soft connecting structure is arranged between the upper airtight encircling device and the lower airtight encircling device, so that an airtight space is formed between the heat conduction table and the cold end.
2. The loading device for surface cryogenic testing according to claim 1, wherein the upper airtight encircling device is provided with a material injection hole, and a sealing plug is arranged on the material injection hole.
3. The surface cryogenic test loading apparatus of claim 1, wherein the upper and lower air-tight containment devices are hoop structures.
4. The loading device for surface cryogenic testing according to claim 1, wherein the outer tub wall of the thermally conductive base is provided with a heat insulating layer.
5. The loading device for surface cryogenic testing according to claim 4, wherein the thermal insulation layer is provided in a cylindrical shape, and an inner wall of the thermal insulation layer is attached to an outer tub wall of the heat conduction stage.
6. The surface cryogenic test loading apparatus of claim 5, wherein the thermal insulation layer has a height lower than a height of a bunghole of the thermal conduction block, and the lower airtight surrounding device is disposed at the bunghole of the thermal conduction block and is located at an upper portion of the thermal insulation layer.
7. The surface cryogenic test loading device of claim 1, wherein the housing is provided with a control structure, a vent, and a fan, the fan being disposed at the vent, the control structure being disposed on a side wall beside the vent.
8. The loading device for surface cryogenic test according to claim 1, wherein a foot is provided at the bottom of the casing, and a foot pad is provided on each of the foot pads, and at the same time, the bottom surface of the foot pad and the bottom surface of the tub bottom of the heat conduction stage are in the same plane, and the foot pad is a cushion.
9. The loading device for surface cryogenic testing according to claim 1, wherein the bottom surface of the bottom of the heat conduction table is a test surface, and the test surface is attached to the surface of the test material.
10. The surface cryogenic test loading apparatus of claim 1, wherein the thermally conductive medium is a liquid.
CN201810284247.9A 2018-04-02 2018-04-02 Loading equipment for surface low-temperature test Active CN108225066B (en)

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Application Number Priority Date Filing Date Title
CN201810284247.9A CN108225066B (en) 2018-04-02 2018-04-02 Loading equipment for surface low-temperature test

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Application Number Priority Date Filing Date Title
CN201810284247.9A CN108225066B (en) 2018-04-02 2018-04-02 Loading equipment for surface low-temperature test

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CN108225066B true CN108225066B (en) 2024-04-19

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110132791B (en) * 2019-05-17 2021-11-26 杭州仰仪科技有限公司 Cold-conducting vibration-isolating sample container for testing low-temperature fluidity of liquid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002098627A (en) * 2001-01-26 2002-04-05 Sanyo Electric Co Ltd Stirling refrigerating machine and heat shock tester
CN1653257A (en) * 2002-05-13 2005-08-10 麦克罗金能源有限公司 Stirling engine assembly
JP2008292411A (en) * 2007-05-28 2008-12-04 Espec Corp Test equipment
CN106762490A (en) * 2017-02-23 2017-05-31 宁波华斯特林电机制造有限公司 A kind of device of solar generating with Stirling motor concentration structure
CN206583109U (en) * 2017-02-23 2017-10-24 宁波华斯特林电机制造有限公司 A kind of Stirling electric machine testing device
CN208155122U (en) * 2018-04-02 2018-11-27 宁波华斯特林电机制造有限公司 A kind of loading equipemtn of surface low-temperature test

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002098627A (en) * 2001-01-26 2002-04-05 Sanyo Electric Co Ltd Stirling refrigerating machine and heat shock tester
CN1653257A (en) * 2002-05-13 2005-08-10 麦克罗金能源有限公司 Stirling engine assembly
JP2008292411A (en) * 2007-05-28 2008-12-04 Espec Corp Test equipment
CN106762490A (en) * 2017-02-23 2017-05-31 宁波华斯特林电机制造有限公司 A kind of device of solar generating with Stirling motor concentration structure
CN206583109U (en) * 2017-02-23 2017-10-24 宁波华斯特林电机制造有限公司 A kind of Stirling electric machine testing device
CN208155122U (en) * 2018-04-02 2018-11-27 宁波华斯特林电机制造有限公司 A kind of loading equipemtn of surface low-temperature test

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