CN201152651Y - Thermoelectricity cold pit refrigeration system for rubber low temperature brittleness measurement - Google Patents
Thermoelectricity cold pit refrigeration system for rubber low temperature brittleness measurement Download PDFInfo
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- CN201152651Y CN201152651Y CNU2007200989758U CN200720098975U CN201152651Y CN 201152651 Y CN201152651 Y CN 201152651Y CN U2007200989758 U CNU2007200989758 U CN U2007200989758U CN 200720098975 U CN200720098975 U CN 200720098975U CN 201152651 Y CN201152651 Y CN 201152651Y
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Abstract
The utility model belongs to a thermoelectric cold trap refrigerating system used for rubber low temperature brittleness measurement, which comprises a thermoelectric refrigerator and a cold trap. The thermoelectric cold trap refrigerating system is characterized in that the cold trap is composed of a polytetrafluor material cold trap seat, a red copper material cold trap body and a polytetrafluor material cold trap sleeve which are meshed and connected via a leakproof sealing thread, the cold side of the thermoelectric refrigerator is stuck to the outer side of the red copper material cold trap body, the hot side of the thermoelectric refrigerator is stuck with a red copper water jacket, direct current is conducted for refrigerating, and the energy exchange is realized. By adopting the red copper material cold trap body, the polytetrafluor material cold trap seat and the cold trap sleeve, the heat exchange between the cold trap refrigerating system and the outside is reduced when good temperature reduction is ensured; all the rest spaces of the cold trap refrigerating system are evenly filled with isocyanurate foam, therefore, not only the heat preservation is ensured, but also the corrosion between the thermoelectric material and the electrodes can be prevented, meanwhile, the mechanical strength of the machine body is improved, the capacities of impact resistance and shock resistance are greatly improved, and the cold trap refrigerating system can also be transported remotely and is especially suitable for the low-temperature test occasion for deep hypothermia test of sophisticated parts and quick temperature reducing .
Description
Technical field
The utility model belongs to the thermoelectric technical field, particularly relates to a kind of rubber black brittleness and measures with thermoelectric cold-trap refrigerating system.
Background technology
It is be hit maximum temperature when occurring destroying of rubber sample under rated condition that the rubber black brittleness is measured, measuring by black brittleness can be to non-rigid plastics and making comparisons property of the serviceability evaluation at low temperatures of other elastomeric materials, and the mensuration of black brittleness all is indispensable in the quality control process of scientific research, rubber, plastics and the check of other Products Quality, production process; At present, the physical property analytical test of multiple material such as a lot of at home building materials, rubber, plastics, packing, cable, adhesive tape and finished product all depends on the main equipment that import equipment and domestic several family unit provide, for these main equipments at first is the cost height, need a large amount of capital inputs, next is to need the special talent to carry out operation and maintenance, wasted the talent undoubtedly, had the considerable part in these equipment bulky again, should not move and be subjected to the space-time restriction greatly.
Summary of the invention
The utility model is for solving problems of the prior art, and provide that a kind of volume is little, in light weight, the transportation that is easy to carry, cost be low, the rubber black brittleness that measuring accuracy is high is measured usefulness thermoelectric cold-trap refrigerating system.
The utility model for solving the technical scheme that technical problem adopted that exists in the known technology is:
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, comprise thermoelectric refrigerator and cold-trap, be characterized in: described cold-trap is made of poly-PTFE cold-trap seat, red copper material trap body and the poly-PTFE cold-trap cover that the leakproof seal screw-threaded engagement connects, described thermoelectric refrigerator huyashi-chuuka (cold chinese-style noodles) is attached to external of red copper trap, the thermoelectric refrigerator hot side posts the red copper water jacket, pass to direct current refrigeration, realize energy exchange.
The utility model can also adopt following technical measures to realize:
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, and be characterized in: described leakproof seal screw-threaded engagement junction evenly is coated with fluid sealant; The contact-making surface of described thermoelectric refrigerator and trap body and water jacket evenly is coated with heat-conducting silicone grease.
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, be characterized in: described thermoelectric refrigerator, trap body and water jacket pass the fastening location of location-plate briquetting by bolt and clamp, make thermoelectric refrigerator, trap body and water jacket have good the contact, cold-trap seat and cold-trap overlap each end face and are fixed on the outer casing inner wall with fastening bolt respectively.
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, and be characterized in: described outer shell outer wall is provided with binding post, and described thermoelectric refrigerator and trap body intersection are provided with heater, and described trap body middle part is consolidated with thermocouple by heat-conducting glue.
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, and be characterized in: described thermoelectric refrigerator, heater, thermocouple lead are connected on the described binding post.
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, is characterized in: described heater is PID instrument, Switching Power Supply by the 220VAC power supply and is controlled by relay.
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, and be characterized in: described water jacket is connected with water nozzle.
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, and be characterized in: described trap body is the square-outside and round-inside structure, and described cold-trap seat and cold-trap cover are cylindrical structure.
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, is characterized in: described thermoelectric refrigerator adopts three class large power TEM series refrigerator.
The rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, and be characterized in: described cold-trap refrigerating system gap is filled with polyurethane foam.
Advantage and the good effect that the utlity model has are: be used for insulation and cold-storage liquid is middle with poly-tetrafluoro cold-trap seat, cold-trap cover by adopting red copper master trap body to be positioned at two, good and the remainder poor thermal conductivity of trap body thermal conductivity, when guaranteeing the good cooling of cold-trap, also effectively guarantee the loss of trap physical efficiency, reduce itself and extraneous heat exchange; The cold-trap refrigerating system residue even filled polyurethane foam that has living space, not only effectively realize the insulation of cold-trap, reducing the hot thermoelectric (al) cooling process that can also prevent of leakage meets the air setting dewfall and causes thermoelectric material and electrode place to form the situation generation that the galvanic cell oneself is corroded, simultaneously, increased overall mechanical strength, the anti shock and vibration ability is strengthened greatly, but long-distance transport, it is strong that this cold-trap has a discreteness, easy for installation, the characteristics that maintain easily during damage are particularly suitable for meticulous parts profound hypothermia test and require the fast low-temperature test occasion of cooling rate to use.
Description of drawings
Fig. 1 measures for the utility model rubber black brittleness and partly cuts open front view with thermoelectric cold-trap refrigerating system structure;
Fig. 2 measures for the utility model rubber black brittleness and cuts open vertical view with thermoelectric cold-trap refrigerating system structure partial;
Fig. 3 is that the utility model rubber black brittleness is measured with thermoelectric cold-trap refrigerating system structure control circuit diagram.
Label among the figure is respectively: 1 is shell, and 2 is polyurethane foam, and 3 is the cold-trap cover, and 4 is water jacket, 5 is location-plate, and 6 are the location briquetting, and 7 is thermoelectric refrigerator, 8 is the trap body, and 9 is bolt, and 10 is fluid sealant, 11 is the cold-trap seat, and 12 is fastening bolt, and 13 is heater, 14 is thermocouple, and 15 is refrigerator, thermocouple, heater terminals, and 16 is water nozzle, 17 is relay, and 18 is the PID instrument, and 19 is Switching Power Supply.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, enumerate following examples now, and conjunction with figs. is described in detail as follows:
Please refer to Fig. 1-Fig. 3: the refrigerating system that the rubber black brittleness is measured with the thermoelectric cold-trap comprises thermoelectric refrigerator 7, cold-trap seat 11, trap body 8 and cold-trap cover 3; Thermoelectric refrigerator 7 passes to direct current refrigeration as the most crucial parts of this system, realizes energy exchange; Cold-trap overlaps 3 three parts by cold-trap seat 11, trap body 8 and cold-trap and constitutes, wherein trap body 8 is handled by the high red copper materials processing of thermal conductivity coefficient and is formed, cold-trap seat 11 and the cold-trap cover 3 poly-PTFEs by the heat conductivility difference process, this three part adopts leakproof seal screw-threaded engagement mode to connect, in order to prevent evenly to smear silicon rubber sealant 10 because of the coefficient of expansion causes the mechanicalness seepage at screw-threaded engagement face place because of three part material differences; Thermoelectric refrigerator 7 forms unique sandwich structure between red copper trap body 8 and the red copper water jacket 4 that is used to conduct heat, the contact-making surface between thermoelectric refrigerator 7, trap body 8, the water jacket 4 is evenly smeared heat-conducting silicone grease, guarantees good thermal conductivity; By location briquetting 6 and location-plate 5, realize good contact the between thermoelectric refrigerator 7 and trap body 8 and water jacket 4 threes by the clamping of bolt 9; Fastening bolt 12 is fixed on cold-trap seat 11 on the bottom surface shell 1 respectively, cold-trap cover 3 is fixed on the end face shell 1.Thermocouple 14 is consolidated in trap body 8 middle parts by heat-conducting glue, monitoring cold-trap actual temperature; 13 pairs of trap body 8 temperature of heater realize the thermal compensation function, guarantee temperature required precision.Water jacket 4 and water nozzle 16 pass to the recirculated water of different flow, in order to realize the heat radiation of thermoelectric refrigerator 7 hot sides; The cold-trap refrigerating system residue even filled polyurethane foam 2 that has living space, not only effectively realize the insulation of cold-trap, reducing the hot thermoelectric (al) cooling process that can also prevent of leakage meets the air setting dewfall and causes thermoelectric material and electrode place to form the situation generation that the galvanic cell oneself is corroded, simultaneously, increased overall mechanical strength, the anti shock and vibration ability is strengthened greatly, but long-distance transport; The 220VAC power supply is PID instrument 18, Switching Power Supply 19 and by heater 13 power supplies of relay 17 controls, difference electric refrigerator 7, thermocouple 14, heater 13 upper conductors are connected on the terminal 15 of shell 1 outside, whether PID instrument 18 output signals deliver to work that voltage rearrangeable switch power supply controls its refrigeration output and relay 17 control heaters respectively, by the self-setting function of PID instrument 18 realize the thermoelectric cold-trap continuously, high accuracy temperature control.Temperature-controlled precision reaches ± and 0.1 ℃.
Embodiment: thermoelectric refrigerator 7 is three grades of refrigerators of 4 TEM3-11725 types, adopt two strings two mixing connected mode also, Switching Power Supply quota operating voltage 20V, operating current 46A, thermoelectric refrigerator 7 huyashi-chuuka (cold chinese-style noodles) closely are connected with red copper trap body 8, contact-making surface is evenly smeared heat-conducting silicone grease, realization is to working solution heat absorption in the trap body, and trap body 8 is the profile cuboid, runs through whole trap body with its concentric cylinder, this red copper trap body 8 has the closed type internal thread, cold-trap seat 11, cold-trap cover 3 is an annulus, and internal diameter is identical with trap body 8, and cold-trap seat 11 bases are connected with shell 1, cold-trap overlaps 3 top covers and is connected with shell 1, realizes whole cold-trap location.The liquid that can hold 800ml～1300ml in the cold-trap refrigeration scope; Thermocouple 14 is cemented in the thermocouple hole on the trap body 8 by heat-conducting glue, realizes temperature monitoring.Even filled polyurethane foam in the trap body 8 is realized cold-trap effectively is incubated, and strengthens the refrigerator reliability, increases the cold-trap mechanical strength.Whole cold-trap appearance and size is 300mm * 300mm * 300mm, and it is very little to take up room.Red copper trap body 8 and poly-tetrafluoro trap body constitute the syllogic cold-trap by the leakproof seal screw-threaded engagement.Thermoelectric refrigerator 7 cold junctions are affixed on red copper trap body 8 heat absorption planes, realize working solution cooling in the trap body 8, location-plate 5, location briquetting 6 and bolt 9 are anchored on red copper trap body 8 surfaces with thermoelectric refrigerator 7, make and keep good contact between them, no relative motion, for guaranteeing good thermo-contact between them, contact-making surface is evenly smeared one deck heat-conducting silicone grease.Cold-trap is consolidated between the shell upper and lower end face by fastening bolt 12, guarantees good relative positioning.Trap body 8 and thermoelectric refrigerator 7 outer spaces adopt integrated foaming process with its even filled polyurethane foam 2, have also strengthened the cold-trap mechanical strength in the time of realization and outside well insulated.Be full of liquid in the trap body and realize the heat conduction.It is fast that introducing continuous P ID has response speed from the adjusting temperature control method of adjusting, characteristics such as temperature-controlled precision height.
The rubber black brittleness is measured and is utilized the thermoelectric (al) cooling principle to carry out work with thermoelectric cold-trap refrigerating system, promptly when having direct current to pass through in the thermoelectric refrigerator 7, thermoelectric refrigerator 7 one side heat absorption one side heat releases, be called the cold junction and the hot junction of thermoelectric refrigerator respectively, hot junction used heat is discharged and remain on uniform temperature and cold junction constantly to the working environment absorbing and cooling temperature.It is exactly that refrigerator is realized cooling by 8 pairs of working solutions heat absorptions of red copper trap body that this principle is applied to specifically that a kind of rubber black brittleness measures with the thermoelectric cold-trap, and the red copper water jacket 4 that passes to recirculated water is responsible for used heat derivation in refrigerator hot junction is drained.A kind of rubber black brittleness is measured can realize-80 ℃～0 ℃ the big temperature measuring scope of dark temperature with the thermoelectric cold-trap, and cold-trap has can hold 800ml～1300ml volume greatly, and whole cold-trap appearance and size is 300mm * 300mm * 300mm, and it is very little to take up room.The introducing of pid control mode and PTC ceramic heat compensation way realizes High Precision Automatic temperature control, can arbitrarily be provided with need temperature, temperature-controlled precision reach ± 0.1 ℃.
The rubber black brittleness is measured as follows with the cold refrigerating system course of work of thermoelectric: when energising back whole system was in holding state, PID instrument 18 showed current thermocouple 14 mensuration temperature.The setting cold-trap is temperature required, connects thermoelectric refrigerator 7, beginning refrigeration work.If temperature requiredly be higher than current monitor temperature, thermoelectric refrigerator 7 is started working so, when monitor temperature is lower than when temperature required, and relay closes, control heater 13 work realize thermal compensation, guarantee temperature requiredly, precision is ± 0.1 ℃.If it is temperature required that current monitor temperature is lower than, thermoelectric refrigerator 7 does not open so, and relay 17 direct control heater 13 thermal compensations are higher than when temperature required up to monitor temperature, and thermoelectric refrigerator 7 is started working.Because PID instrument 18 has digital display and self-setting function, displays temperature and realize the continuous precise temperature control in real time.
Claims (10)
1. the rubber black brittleness is measured with thermoelectric cold-trap refrigerating system, comprise thermoelectric refrigerator and cold-trap, it is characterized in that: described cold-trap is made of poly-PTFE cold-trap seat, red copper material trap body and the poly-PTFE cold-trap cover that the leakproof seal screw-threaded engagement connects, described thermoelectric refrigerator huyashi-chuuka (cold chinese-style noodles) is attached to external of red copper trap, the thermoelectric refrigerator hot side posts the red copper water jacket, pass to direct current refrigeration, realize energy exchange.
2. rubber black brittleness according to claim 1 is measured with thermoelectric cold-trap refrigerating system, and it is characterized in that: described leakproof seal screw-threaded engagement junction evenly is coated with fluid sealant; The contact-making surface of described thermoelectric refrigerator and trap body and water jacket evenly is coated with heat-conducting silicone grease.
3. rubber black brittleness according to claim 1 is measured with thermoelectric cold-trap refrigerating system, it is characterized in that: described thermoelectric refrigerator, trap body and water jacket pass the fastening location of location-plate briquetting by bolt and clamp, make thermoelectric refrigerator, trap body and water jacket have good the contact, cold-trap seat and cold-trap overlap each end face and are fixed on the outer casing inner wall with fastening bolt respectively.
4. rubber black brittleness according to claim 3 is measured with thermoelectric cold-trap refrigerating system, it is characterized in that: described outer shell outer wall is provided with binding post, described thermoelectric refrigerator and trap body intersection are provided with heater, and described trap body middle part is consolidated with thermocouple by heat-conducting glue.
5. rubber black brittleness according to claim 4 is measured with thermoelectric cold-trap refrigerating system, and it is characterized in that: described thermoelectric refrigerator, heater, thermocouple lead are connected on the described binding post.
6, rubber black brittleness according to claim 5 is measured with thermoelectric cold-trap refrigerating system, it is characterized in that: described heater is PID instrument, Switching Power Supply by the 220VAC power supply and is controlled by relay.
7, rubber black brittleness according to claim 1 is measured with thermoelectric cold-trap refrigerating system, and it is characterized in that: described water jacket is connected with water nozzle.
8, rubber black brittleness according to claim 1 is measured with thermoelectric cold-trap refrigerating system, and it is characterized in that: described trap body is the square-outside and round-inside structure, and described cold-trap seat and cold-trap cover are cylindrical structure.
9, rubber black brittleness according to claim 1 is measured with thermoelectric cold-trap refrigerating system, it is characterized in that: described thermoelectric refrigerator adopts three class large power TEM series refrigerator.
10, rubber black brittleness according to claim 1 is measured with thermoelectric cold-trap refrigerating system, and it is characterized in that: described cold-trap refrigerating system gap is filled with polyurethane foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200989758U CN201152651Y (en) | 2007-12-17 | 2007-12-17 | Thermoelectricity cold pit refrigeration system for rubber low temperature brittleness measurement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200989758U CN201152651Y (en) | 2007-12-17 | 2007-12-17 | Thermoelectricity cold pit refrigeration system for rubber low temperature brittleness measurement |
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| CN201152651Y true CN201152651Y (en) | 2008-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200989758U Expired - Fee Related CN201152651Y (en) | 2007-12-17 | 2007-12-17 | Thermoelectricity cold pit refrigeration system for rubber low temperature brittleness measurement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644676A (en) * | 2013-12-04 | 2014-03-19 | 中国科学院光电技术研究所 | Cold shield device of EMCCD camera refrigeration system |
| CN105972854A (en) * | 2016-07-06 | 2016-09-28 | 福州幻科机电科技有限公司 | Panel with one face heated and back face self-cooled and manufacturing method of panel |
-
2007
- 2007-12-17 CN CNU2007200989758U patent/CN201152651Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644676A (en) * | 2013-12-04 | 2014-03-19 | 中国科学院光电技术研究所 | Cold shield device of EMCCD camera refrigeration system |
| CN103644676B (en) * | 2013-12-04 | 2017-01-18 | 中国科学院光电技术研究所 | Cold shield device of EMCCD camera refrigeration system |
| CN105972854A (en) * | 2016-07-06 | 2016-09-28 | 福州幻科机电科技有限公司 | Panel with one face heated and back face self-cooled and manufacturing method of panel |
| CN105972854B (en) * | 2016-07-06 | 2018-04-20 | 福州幻科机电科技有限公司 | A kind of one side is heated the self cooling plate in the back side and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20131217 |