CN209543161U - A kind of air compensating device for high-low temperature test chamber - Google Patents
A kind of air compensating device for high-low temperature test chamber Download PDFInfo
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- CN209543161U CN209543161U CN201920141315.6U CN201920141315U CN209543161U CN 209543161 U CN209543161 U CN 209543161U CN 201920141315 U CN201920141315 U CN 201920141315U CN 209543161 U CN209543161 U CN 209543161U
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- air
- low temperature
- test chamber
- delivery pipe
- temperature test
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Abstract
A kind of air compensating device for high-low temperature test chamber, including air blower, cooling device, heating device and air delivery pipe, the output end of the air blower are connected with the input terminal of the cooling device and the heating device respectively；The output end of the cooling device and the heating device is connected with the air inlet of the air delivery pipe respectively, and is exported by the air outlet of the air delivery pipe.
Description
Technical field
The utility model relates to field of tooling equipment, and in particular to a kind of compensated with air dress for high-low temperature test chamber
It sets.
Background technique
High/low temperature is the influence for evaluating safety of the product under high and low temperature environment, integrality and its performance, is ring
The important component of border reliability test.Thermocycling is carried out under running conditions using the generator of specific model, but
It is that generator needs to consume at work oxygen and generates exhaust gas, and usually high-low temperature test chamber interior room is enclosed environment, and it is outer
Boundary's air does not circulate, and the exhaust gas of generation can only be discharged by chamber external exhaust duct at present, can not be to generator
Enough air are provided, also, there are the temperature difference for the air themperature in outside air and chamber, if directly that outside air is direct
It introduces in chamber, then will lead to environment temperature in case and change, requirement of experiment can not be reached, for this case, propose
A kind of air compensating device for high-low temperature test chamber.
Utility model content
One, the technical issues of solving
The utility model in view of the deficiencies of the prior art, propose to introduce chamber in air in advance carry out heating or
Cooling processing reduces the temperature difference of inside and outside gas, realizes a kind of sky for high-low temperature test chamber of gas conversion and energy conversion
Gas compensation device.
Two, specific technical solution
A kind of air compensating device for high-low temperature test chamber, key are: including air blower, cooling device, adding
Thermal and air delivery pipe, the output end of the air blower input terminal with the cooling device and the heating device respectively
It is connected；The output end of the cooling device and the heating device is connected with the air inlet of the air delivery pipe respectively, and by
The air outlet of the air delivery pipe exports.
Realization principle: by air blower input air, pass through cooling device or heating device pair respectively according to experimental conditions
Input air is cooled down or is heated, and treated, and air passes through air delivery pipe again enters in chamber.
As preferred: the air blower has the function of frequency control；By the frequency control of air blower, so that air blower
Input air speed is identical as chamber discharge air velocity, makes atmospheric pressure balance in chamber and stablizes.
As preferred: the cooling device is liquid nitrogen heat exchanger, and is additionally provided with solenoid valve on the liquid nitrogen heat exchanger
Door；Air cooling-down can be made fast using liquid nitrogen heat exchanger, good cooling effect, and liquid nitrogen is inertia, colourless, odorless, corrosion-free
Property, it is non-combustible so that test is safer, and the uninterrupted of liquid nitrogen is controlled by electromagnetic valve, to realize that control is cold
Air temperature.
As preferred: the heating device is resistance heater；Keep air heating fast by resistance heater, heating
Effect is good.
As preferred: the air inlet end of the air delivery pipe is provided with temperature sensor and temperature sensor monitoring is defeated
Enter the temperature of air；The temperature for being sent into air is monitored by temperature sensor, and temperature signal is delivered separately to electromagnetic valve
Or resistance heater controls the flow of liquid nitrogen or the degree of heat of resistance wire, reaches and controls cold wind temperature or hot wind respectively
Temperature.
The utility model has the following beneficial effects: adjusting input air speed by air blower and air speed being discharged with chamber
Spend identical, air pressure in blance test case；Cooled down by liquid nitrogen heat exchanger or resistance heater to input air
Or heat treatment, keep input air consistent with air in chamber, convenient for preferably completing test；It is monitored by temperature sensor
It is sent into the temperature of air, and temperature signal is passed into electromagnetic valve or resistance heater to control the flow or electricity of liquid nitrogen
The degree of heat for hindering silk reaches control cold wind temperature or hot blast temperature.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of the utility model；
Fig. 2 is that the signal of temperature sensor in the utility model transmits schematic diagram.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of air compensating device for high-low temperature test chamber as shown in Figure 1: is filled by air blower, cooling device, heating
It sets and is formed with air delivery pipe, the output end of air blower is connected with the input terminal of cooling device and heating device respectively；Cooling dress
It sets and is connected respectively with the air inlet of air delivery pipe with the output end of heating device, and exported by the air outlet of air delivery pipe,
Wherein, air blower has the function of frequency control, by the frequency control of air blower, so that the input air speed of air blower and examination
Tryoff discharge air velocity is identical, makes atmospheric pressure balance in chamber and stablizes；Cooling device is liquid nitrogen heat exchanger, and institute
It states and is additionally provided with electromagnetic valve on liquid nitrogen heat exchanger；Heating device is resistance heater；By air blower input air, respectively
Input air is cooled down or heated by liquid nitrogen heat exchanger or resistance heater, treated, and air passes through again
Air delivery pipe enters in chamber.
As shown in Figure 2: the air inlet end of air delivery pipe is provided with temperature sensor and temperature sensor monitoring input
Air blower is connected to conveying cold air, resistance heater is not when needing cold air by the temperature of air with liquid nitrogen heat exchanger
Work, temperature sensor monitor input air temperature, signal are passed to controller when air temperature is excessively high, by controller
It controls the electromagnetic valve on liquid nitrogen heat exchanger and controls liquid nitrogen flow by electromagnetic valve and carry out cooling processing, to reach
Control cold wind temperature；When needing hot-air, air blower is connected to conveying hot-air, liquid nitrogen heat exchanger with resistance heater
It does not work, temperature sensor monitors air themperature, signal is passed to controller when hot air temperature is too low, by controller control
Resistance heater processed, is heated by resistive heater, to reach control hot blast temperature；Make input air and examination
Air is consistent in tryoff, convenient for preferably completing test.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, subject to the scope of the utility model is defined by the following claims.
Claims (5)
1. a kind of air compensating device for high-low temperature test chamber, it is characterised in that: including air blower, cooling device, heating
Device and air delivery pipe, the output end of the air blower input terminal phase with the cooling device and the heating device respectively
Even；
The output end of the cooling device and the heating device is connected with the air inlet of the air delivery pipe respectively, and by institute
State the air outlet output of air delivery pipe.
2. a kind of air compensating device for high-low temperature test chamber according to claim 1, it is characterised in that: the air blast
Machine has the function of frequency control.
3. a kind of air compensating device for high-low temperature test chamber according to claim 1, it is characterised in that: the cooling
Device is liquid nitrogen heat exchanger, and is additionally provided with electromagnetic valve on the liquid nitrogen heat exchanger.
4. a kind of air compensating device for high-low temperature test chamber according to claim 3, it is characterised in that: the heating
Device is resistance heater.
5. a kind of air compensating device for high-low temperature test chamber according to claim 4, it is characterised in that: the air
The air inlet end of delivery pipe is provided with the temperature of temperature sensor and temperature sensor monitoring input air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920141315.6U CN209543161U (en) | 2019-01-28 | 2019-01-28 | A kind of air compensating device for high-low temperature test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920141315.6U CN209543161U (en) | 2019-01-28 | 2019-01-28 | A kind of air compensating device for high-low temperature test chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209543161U true CN209543161U (en) | 2019-10-25 |
Family
ID=68271761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920141315.6U Active CN209543161U (en) | 2019-01-28 | 2019-01-28 | A kind of air compensating device for high-low temperature test chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209543161U (en) |
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2019
- 2019-01-28 CN CN201920141315.6U patent/CN209543161U/en active Active
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