CN103962191A - High low temperature damp and hot low gas pressure test box - Google Patents
High low temperature damp and hot low gas pressure test box Download PDFInfo
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- CN103962191A CN103962191A CN201410206047.3A CN201410206047A CN103962191A CN 103962191 A CN103962191 A CN 103962191A CN 201410206047 A CN201410206047 A CN 201410206047A CN 103962191 A CN103962191 A CN 103962191A
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000011553 magnetic fluid Substances 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000005485 electric heating Methods 0.000 claims description 14
- 238000005057 refrigeration Methods 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 229910001120 nichrome Inorganic materials 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000498 cooling water Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Abstract
The invention relates to the technical field of environmental testing instruments, in particular to a high low temperature damp and hot low gas pressure test box. The high low temperature damp and hot low gas pressure test box comprises a box body, a heating system, a refrigerating system, a vacuum system, an electrical cabinet and an electrical system, wherein a box door is arranged at the front end face of the box body, and an observing window is arranged on the box door; the box door is connected with the box body in a sealing manner; the heating system and a vacuum chamber are arranged at the upper part in the box body, and a sample stand is mounted in the vacuum chamber; the heating system, the refrigerating system and the vacuum system are respectively connected with the electrical system through a circuit. The high low temperature damp and hot low gas pressure test box also comprises a humidifying system, and the humidifying system is arranged outside the vacuum chamber in the box body and is communicated with the interior of the vacuum chamber through a pipeline. An electric valve is arranged on the pipeline, and the humidifying system and the electric valve are respectively connected with the electrical system through a circuit. Compared with the prior art, the high low temperature damp and hot low gas pressure test box integrates humidity, high low temperature and low gas pressure, and the function of the test box can be furthest performed, so that the test box can simulate a complicated real test environment, and the test accuracy of tested products is improved.
Description
[technical field]
The present invention relates to environmental test Instrument technology field, specifically the hot low pressure test chamber of a kind of high Low Temperature Wet.
[background technology]
At present, vacuum test case is in productive life, and range of application is more and more extensive, along with scientific and technological development, also more and more higher to the requirement of chamber, and vacuum test case more common on market mainly exists following problem or deficiency:
(1) temperature range is narrow, only has simple high temperature or low temperature;
(2) generally only have temperature and pressure index, can not do damp heat test;
(3), when the temperature change scope different is done experiment or when different pressures is done experiment, due to the distortion of bearing course generation pettiness, motor is produced eccentric, thereby can produce to some extent noise;
(4) there is no water separator, when doing humidity, aqueous vapor easily condenses in exhaust pipe, and can produce and get rusty, corrosion vavuum pump, thus make the problems such as pumping fluid goes bad.
[summary of the invention]
Object of the present invention is exactly will solve above-mentioned deficiency and provide a kind of high Low Temperature Wet hot low pressure test chamber, integrate humidity, high low temperature, low pressure, can bring into play to greatest extent the function of chamber, thereby simulate more complicated real experimental enviroment, improved the accuracy of tested product testing.
Design for achieving the above object the hot low pressure test chamber of a kind of high Low Temperature Wet, comprise casing, heating system, refrigeration system, vacuum system, regulator cubicle and electrical system, described casing front end face is provided with chamber door, described chamber door is provided with observation window, described chamber door is connected with box sealing, described casing internal upper part is provided with heating system and vacuum chamber, in described vacuum chamber, specimen holder is installed, described heating system, refrigeration system, vacuum system is respectively by connection electrical system, also comprise humidification system, described humidification system is arranged on outside casing inner vacuum chamber, described humidification system is connected with internal vacuum chamber by pipeline, described pipeline is provided with motor-driven valve, described humidification system, motor-driven valve is respectively by connection electrical system.
Described humidification system comprises water tank, tank and electric heating tube, described tank connects water tank by pipeline, described electric heating tube is arranged on the inwall of tank, in described tank, be provided with level sensor, described tank is arranged on casing inner vacuum chamber rear portion, and described electric heating tube, level sensor are respectively by connection electrical system.
In described casing, be provided with air handling system, described air handling system comprises circulation motor, magnetic fluid power transmission shaft and wind drum, described circulation motor is arranged on vacuum chamber tip exterior, described wind drum is arranged in vacuum chamber, the output of described circulation motor connects magnetic fluid power transmission shaft by shaft coupling, described magnetic fluid power transmission shaft is connected with wind drum, described magnetic fluid power transmission shaft lower end is connected with vacuum corrugated pipe, the described magnetic fluid power transmission shaft vacuum chamber that is tightly connected, described circulation motor is by connection electrical system.
Described vacuum system comprises vavuum pump and vacuum valve, described vavuum pump is arranged on casing inner vacuum chamber below, described vacuum valve is arranged on the vacuum line of vavuum pump, the air entry of described vavuum pump connects condenser by pipeline, described condenser connects internal vacuum chamber by pipeline, on pipeline between described vavuum pump and condenser, steam-water separator is installed, described vavuum pump, vacuum valve are by connection electrical system.
In described vacuum chamber, be provided with temperature sensor, humidity sensor, pressure sensor and vent valve, described temperature sensor, humidity sensor, pressure sensor, vent valve are respectively by connection electrical system.
Described refrigeration system comprises compressor, condenser and evaporimeter, described compressor, condenser, evaporimeter are arranged on respectively casing inner vacuum chamber rear portion, described evaporimeter connects condenser by pipeline, described condenser connects compressor by pipeline, and described compressor is by connection electrical system.
Described heating system comprises heater and stainless steel support, and described heater is arranged on the below of wind drum in vacuum chamber by stainless steel support, and described heater is nichrome wire electric heating tube, and described heater is by connection electrical system.
The side of described casing is connected with regulator cubicle, described regulator cubicle front is provided with control panel, described electrical system is arranged on the rear side of control panel, described electrical system comprises vacuum controller, distribution board, transformer and temperature sensor display instrument, and described electrical system is by the button control zone on line connection control panel.
Described casing comprises outer container and interior case, described outer container adopts steel plate outer surface plastic-blasting to make, and described interior case adopts corrosion resistant plate to make, and between described outer container and interior case, is provided with heat-insulation layer, described heat-insulation layer adopts polyurethane foam plastic foaming to form, and the inner surface of described interior case is provided with bearing plate.
Described chamber door is provided with rotary-type door handle, and described regulator cubicle front is provided with Manual air-release valves, and described vacuum chamber rear portion is provided with ventilating fan.
Compared with the existing technology, tool has the following advantages in the present invention:
(1) can do to gamut Humidity Test, vacuum system can not be subject to the impact of water vapour, and integrates humidity, high low temperature, low pressure, can bring into play to greatest extent the function of chamber, thereby simulate more complicated real experimental enviroment, improved the accuracy of tested product testing;
(2) the outer courage of the inner bag of axis hole is connected by vacuum corrugated pipe, because magnetic fluid power transmission shaft is mounted on a vacuum corrugated pipe, thereby while vacuumizing, even inner-outer tube pressurized, the distortion that produces pettiness, all can be absorbed by vacuum corrugated pipe, which kind of realized no matter under pressure, the axle center of circulation motor remains at plumbness, can not produce bias, can not produce noise;
(3) top air-out mode, from machine bottom, inhaling cold air carries out cooling, from machine top, discharge hot-air, meet the natural law that hot gas rises, reach best cooling effect, farthest dwindled installing space, made the outside dimension of machine and aesthetic property reach qualitative leap, and this air cooling way can facilitate equipment moving maintenance simultaneously;
(4) motor driven adopts water-cooled magnetic fluid to seal, and is equipped with circulating motor cooling water tank, after first installation, once adds water and can use long time, and saving water resource has well facilitated user's routine use simultaneously.
[accompanying drawing explanation]
Fig. 1 is the structural representation in front of the present invention;
Fig. 2 is the internal structure schematic diagram in the present invention left side;
Fig. 3 is the internal structure schematic diagram on right side of the present invention;
Fig. 4 is the schematic top plan view of the interior bottom of casing in the present invention;
Fig. 5 is the schematic top plan view of casing internal upper part in the present invention;
In figure: 1, casing 2, regulator cubicle 3, chamber door 4, observation window 5, vacuum chamber 6, specimen holder 7, motor-driven valve 8, water tank 9, tank 10, electric heating tube 11, circulation motor 12, magnetic fluid power transmission shaft 13, wind drum 14, vacuum corrugated pipe 15, vavuum pump 16, temperature sensor 17, humidity sensor 18, compressor 19, condenser 20, evaporimeter 21, heater 22, control panel 23, vacuum controller 24, distribution board 25, transformer 26, temperature sensor display instrument 27, rotary-type door handle 28, Manual air-release valves 29, ventilating fan 30, motor cover 31, motor-driven valve 2 32, motor cooling water tank 33, vavuum pump blast pipe 34, add water tipping bucket 35, drain solenoid valve 36, cooling water pump 37, lamp inside the box.
[specific embodiment]
Below in conjunction with accompanying drawing, the present invention is done to following further illustrating:
If accompanying drawing 1 is to as shown in accompanying drawing 5, the present invention includes: casing 1, heating system, refrigeration system, vacuum system, regulator cubicle 2 and electrical system, casing front end face is provided with chamber door 3, chamber door is provided with observation window 4, chamber door is connected with box sealing, casing internal upper part is provided with heating system and vacuum chamber 5, specimen holder 6 is installed in vacuum chamber, heating system, refrigeration system, vacuum system is respectively by connection electrical system, also comprise humidification system, humidification system is arranged on outside casing inner vacuum chamber, humidification system is connected with internal vacuum chamber by pipeline, pipeline is provided with motor-driven valve 7, humidification system, motor-driven valve is respectively by connection electrical system, this humidification system comprises water tank 8, tank 9 and electric heating tube 10, tank connects water tank by pipeline, and electric heating tube is arranged on the inwall of tank, is provided with level sensor in tank, tank is arranged on casing inner vacuum chamber rear portion, and electric heating tube, level sensor are respectively by connection electrical system.
In the present invention, in casing, be provided with air handling system, air handling system comprises circulation motor 11, magnetic fluid power transmission shaft 12 and wind drum 13, circulation motor is arranged with motor cover 30 outward, circulation motor is arranged on vacuum chamber tip exterior, wind drum is arranged in vacuum chamber, the output of circulation motor connects magnetic fluid power transmission shaft by shaft coupling, magnetic fluid power transmission shaft is connected with wind drum, magnetic fluid power transmission shaft lower end is connected with vacuum corrugated pipe 14, this vacuum corrugated pipe is stainless steel ripple flexible pipe, the magnetic fluid power transmission shaft vacuum chamber that is tightly connected, circulation motor is by connection electrical system, wherein, magnetic fluid power transmission shaft connects motor cooling water tank 32 by water pipe, this motor cooling water tank is arranged on vavuum pump place, vacuum chamber below.
In the present invention, vacuum system comprises vavuum pump 15 and vacuum valve, vavuum pump is arranged on casing inner vacuum chamber below, vacuum valve is arranged on the vacuum line of vavuum pump, the air entry of vavuum pump connects condenser by pipeline, condenser connects internal vacuum chamber by pipeline, on the pipeline between vavuum pump and condenser, steam-water separator is installed, and vavuum pump, vacuum valve are by connection electrical system; In vacuum chamber, be provided with temperature sensor 16, humidity sensor 17, pressure sensor and vent valve, temperature sensor, humidity sensor, pressure sensor, vent valve are respectively by connection electrical system.
In the present invention, refrigeration system comprises compressor 18, condenser 19 and evaporimeter 20, and compressor, condenser, evaporimeter are arranged on respectively casing inner vacuum chamber rear portion, and evaporimeter connects condenser by pipeline, condenser connects compressor by pipeline, and compressor is by connection electrical system; Wherein, compressor adopts the safe health compressor of American-European imported with original packaging France, cascade refrigeration; Refrigerant adopts non-fluorine environmental protection refrigerant, as Dupont R404A+R23; Condenser is band fin high-efficiency air cooled condenser, and evaporimeter is efficient riffled tube evaporimeter, and refrigeration system accessory comprises Italian import magnetic valve, Danfoss expansion valve, evaporating pressure regulating valve etc.Heating system comprises heater 21 and stainless steel support, and heater is arranged on the below of wind drum in vacuum chamber by stainless steel support, and heater is nichrome wire electric heating tube, and heater is by connection electrical system.
The side of casing is connected with regulator cubicle, regulator cubicle front is provided with control panel 22, electrical system is arranged on the rear side of control panel, electrical system comprises vacuum controller 23, distribution board 24, transformer 25 and temperature sensor display instrument 26, and electrical system is by the button control zone on line connection control panel.Casing comprises outer container and interior case, outer container adopts steel plate outer surface plastic-blasting to make, interior case adopts SUS304 corrosion resistant plate to make, between outer container and interior case, be provided with heat-insulation layer, heat-insulation layer adopts polyurethane foam plastic to form through HTHP foaming, interior chamber, shell, low temperature chamber are connected into an integral body, and the inner surface of interior case is provided with bearing plate, and this bearing plate forms for thickening stainless steel reinforcement; Chamber door is provided with rotary-type door handle 27, and regulator cubicle front is provided with Manual air-release valves 28, and vacuum chamber rear portion is provided with ventilating fan 29.
In case of the present invention, air themperature scope is-60 ℃～150 ℃, temperature fluctuation ± 0.5 ℃, temperature deviation ± 2.0 ℃; When humidity >=75%RH, humidity deviation is ± 2.5RH that, when humidity <75%RH, humidity deviation is ± 5%RH; From normal pressure, to 10kpa, the step-down time is≤30 minutes.Controller adopts Japanese imported with original packaging " excellent easy control " brand thermometric instrument, the 7 inches high color liquid crystal touch display screens of Islamic; 100 groups of programs are set arbitrarily preservation; 300 days history curves, can consult at any time, download; Band USB, LAN interface function, can be conveniently with computer carry out online, remote monitoring.Temperature sensor adopts high accuracy PT100 RTD, and humidity sensor adopts Switzerland import Luo Zhuonike electronic type humidity sensor.
Air conditioning mode of the present invention is forced ventilation inner equilibrium temperature adjustment method (BTC), the output quantity that control system is removed control heater according to the temperature spot of setting by the result of the automatic computing output of PID, finally reach a kind of dynamic equilibrium, built-in air conditioning room, circulation air path and major axis centrifugal fan, air by wind wheel to high-temperature cabinet, carry out forced circulation, the uniformity of the case temperature that reaches a high temperature; Mode of heating adopts high-quality nichrome wire electric heater, air is directly heated, and internally case bearing plate carries out heat radiation; In the blower fan kind of drive, motor is connected on magnetic fluid by shaft joint, then through magnetic fluid, lengthens axle center impeller rotation, makes interior case air produce convection current, thereby makes the temperature inside the box uniformity reach requirement.
Humidifier in humidification system of the present invention adopts boiler humidification method, and high efficiency insulation electric heating tube directly to the water heating in boiler, thereby produces steam; Excessive low water level protection functional assembly has level sensor, and when water level is lower than when setting value, machine can be shut down by automatic alarm, prevents water pump dry tap or electrothermal tube dry combustion method; Be provided with automatic valve, when vacuumizing, electrically operated valve is closed automatically, cuts off the pipeline of Boiler Steam and interior case; During as damp heat test, electrically operated valve is opened automatically, in chamber, injects moist steam.
Vavuum pump in vacuum system of the present invention adopts high-quality rotary-vane vaccum pump, is equipped with big or small pump, to adapt to the fine setting under different pumping speed; Vacuum valve is controlled by controller, cuts off and connect vacuum line; Be provided with vent valve, when vacuum pressure is lower than when setting value, automatically toward venting in chamber, or shut down and inflate in chamber, so that extensive, must arrive again normal pressure, be easy to open chamber door; Vacuum transducer is Pirani gauge formula pressure sensor, by the pressure measuring with signal of telecommunication real-time Transmission to controller; In vacuum line wet down, from the damp-heat air of releasing in chamber, first through condenser, carry out coolingly, then after steam-water separator separation, just can enter the air entry of vavuum pump, prevent vavuum pump water inlet and damage.
The present invention is not subject to the restriction of above-mentioned embodiment, and other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify, and all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. the hot low pressure test chamber of high Low Temperature Wet, comprise casing, heating system, refrigeration system, vacuum system, regulator cubicle and electrical system, described casing front end face is provided with chamber door, described chamber door is provided with observation window, described chamber door is connected with box sealing, described casing internal upper part is provided with heating system and vacuum chamber, in described vacuum chamber, specimen holder is installed, described heating system, refrigeration system, vacuum system is respectively by connection electrical system, it is characterized in that: also comprise humidification system, described humidification system is arranged on outside casing inner vacuum chamber, described humidification system is connected with internal vacuum chamber by pipeline, described pipeline is provided with motor-driven valve, described humidification system, motor-driven valve is respectively by connection electrical system.
2. the hot low pressure test chamber of high Low Temperature Wet as claimed in claim 1, it is characterized in that: described humidification system comprises water tank, tank and electric heating tube, described tank connects water tank by pipeline, described electric heating tube is arranged on the inwall of tank, in described tank, be provided with level sensor, described tank is arranged on casing inner vacuum chamber rear portion, and described electric heating tube, level sensor are respectively by connection electrical system.
3. the hot low pressure test chamber of high Low Temperature Wet as claimed in claim 1 or 2, it is characterized in that: in described casing, be provided with air handling system, described air handling system comprises circulation motor, magnetic fluid power transmission shaft and wind drum, described circulation motor is arranged on vacuum chamber tip exterior, described wind drum is arranged in vacuum chamber, the output of described circulation motor connects magnetic fluid power transmission shaft by shaft coupling, described magnetic fluid power transmission shaft is connected with wind drum, described magnetic fluid power transmission shaft lower end is connected with vacuum corrugated pipe, the described magnetic fluid power transmission shaft vacuum chamber that is tightly connected, described circulation motor is by connection electrical system.
4. the hot low pressure test chamber of high Low Temperature Wet as claimed in claim 3, it is characterized in that: described vacuum system comprises vavuum pump and vacuum valve, described vavuum pump is arranged on casing inner vacuum chamber below, described vacuum valve is arranged on the vacuum line of vavuum pump, the air entry of described vavuum pump connects condenser by pipeline, described condenser connects internal vacuum chamber by pipeline, on pipeline between described vavuum pump and condenser, steam-water separator is installed, described vavuum pump, vacuum valve are by connection electrical system.
5. the hot low pressure test chamber of high Low Temperature Wet as claimed in claim 4, it is characterized in that: in described vacuum chamber, be provided with temperature sensor, humidity sensor, pressure sensor and vent valve, described temperature sensor, humidity sensor, pressure sensor, vent valve are respectively by connection electrical system.
6. the hot low pressure test chamber of high Low Temperature Wet as claimed in claim 5, it is characterized in that: described refrigeration system comprises compressor, condenser and evaporimeter, described compressor, condenser, evaporimeter are arranged on respectively casing inner vacuum chamber rear portion, described evaporimeter connects condenser by pipeline, described condenser connects compressor by pipeline, and described compressor is by connection electrical system.
7. the hot low pressure test chamber of high Low Temperature Wet as claimed in claim 6, it is characterized in that: described heating system comprises heater and stainless steel support, described heater is arranged on the below of wind drum in vacuum chamber by stainless steel support, described heater is nichrome wire electric heating tube, and described heater is by connection electrical system.
8. the hot low pressure test chamber of high Low Temperature Wet as claimed in claim 7, it is characterized in that: the side of described casing is connected with regulator cubicle, described regulator cubicle front is provided with control panel, described electrical system is arranged on the rear side of control panel, described electrical system comprises vacuum controller, distribution board, transformer and temperature sensor display instrument, and described electrical system is by the button control zone on line connection control panel.
9. the hot low pressure test chamber of high Low Temperature Wet as claimed in claim 8, it is characterized in that: described casing comprises outer container and interior case, described outer container adopts steel plate outer surface plastic-blasting to make, described interior case adopts corrosion resistant plate to make, between described outer container and interior case, be provided with heat-insulation layer, described heat-insulation layer adopts polyurethane foam plastic foaming to form, and the inner surface of described interior case is provided with bearing plate.
10. the hot low pressure test chamber of high Low Temperature Wet as claimed in claim 9, is characterized in that: described chamber door is provided with rotary-type door handle, and described regulator cubicle front is provided with Manual air-release valves, and described vacuum chamber rear portion is provided with ventilating fan.
Priority Applications (1)
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| CN201410206047.3A CN103962191A (en) | 2014-05-15 | 2014-05-15 | High low temperature damp and hot low gas pressure test box |
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| CN201410206047.3A CN103962191A (en) | 2014-05-15 | 2014-05-15 | High low temperature damp and hot low gas pressure test box |
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Cited By (17)
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| CN104345756A (en) * | 2014-11-04 | 2015-02-11 | 宁波星箭航天机械有限公司 | High-temperature high-pressure vacuumizing test device and operating method thereof |
| CN104536492A (en) * | 2014-12-23 | 2015-04-22 | 天津职业技术师范大学 | Method and device for low temperature control of oil temperature and ambient temperature under oil injection lubrication |
| CN104932410A (en) * | 2015-05-29 | 2015-09-23 | 中国船舶重工集团公司第七二二研究所 | Rapid temperature change test box |
| CN105642374A (en) * | 2016-03-30 | 2016-06-08 | 天津亭华科技有限公司 | Low-air-pressure high-and-low-temperature test chamber |
| CN105954178A (en) * | 2016-04-20 | 2016-09-21 | 上海林频仪器股份有限公司 | Anticorrosive low-humidity walk-in test chamber |
| CN104345756B (en) * | 2014-11-04 | 2017-01-04 | 宁波星箭航天机械有限公司 | High Temperature High Pressure evacuation assay device and operational approach thereof |
| CN106975525A (en) * | 2017-05-22 | 2017-07-25 | 广东艾思荔检测仪器有限公司 | The combined test chamber of humiture three |
| CN107233935A (en) * | 2017-04-27 | 2017-10-10 | 上海吉通力实验设备有限公司 | Explosion-proof high-low-temperature low-atmospheric pressure test system |
| CN107256052A (en) * | 2017-07-06 | 2017-10-17 | 深圳市信通检测技术有限公司 | Programmable constant temperature humidity chamber application method and control method |
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| CN104345756B (en) * | 2014-11-04 | 2017-01-04 | 宁波星箭航天机械有限公司 | High Temperature High Pressure evacuation assay device and operational approach thereof |
| CN104345756A (en) * | 2014-11-04 | 2015-02-11 | 宁波星箭航天机械有限公司 | High-temperature high-pressure vacuumizing test device and operating method thereof |
| CN107703992B (en) * | 2014-12-23 | 2019-12-06 | 齐鲁工业大学 | Electrical system of low temperature control device for oil injection lubrication |
| CN104536492A (en) * | 2014-12-23 | 2015-04-22 | 天津职业技术师范大学 | Method and device for low temperature control of oil temperature and ambient temperature under oil injection lubrication |
| CN107703992A (en) * | 2014-12-23 | 2018-02-16 | 天津职业技术师范大学 | The electrical system of oil jet lubrication low-temperature control device |
| CN104932410B (en) * | 2015-05-29 | 2018-07-31 | 中国船舶重工集团公司第七二二研究所 | A kind of rapid temperature change testing box |
| CN104932410A (en) * | 2015-05-29 | 2015-09-23 | 中国船舶重工集团公司第七二二研究所 | Rapid temperature change test box |
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| CN105954178A (en) * | 2016-04-20 | 2016-09-21 | 上海林频仪器股份有限公司 | Anticorrosive low-humidity walk-in test chamber |
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