CN110108057A - Optical communication module temperature production device for testing and method based on vortex tube - Google Patents
Optical communication module temperature production device for testing and method based on vortex tube Download PDFInfo
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- CN110108057A CN110108057A CN201910402046.9A CN201910402046A CN110108057A CN 110108057 A CN110108057 A CN 110108057A CN 201910402046 A CN201910402046 A CN 201910402046A CN 110108057 A CN110108057 A CN 110108057A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
- F25B9/04—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect using vortex effect
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Temperature (AREA)
Abstract
The invention belongs to optical communication production test technical field, optical communication module temperature production device for testing and method based on vortex tube, including controller, vortex tube, gas thermometer, auxiliary gas channel and control valve are specifically provided;Under low temperature mode, when the air outlet temperature of needs is higher, auxiliary gas channel is opened, controller controls the aperture of operated proportional flow control valve according to the gas temperature at target gas outlet to obtain the gas temperature of target gas outlet and can reach certain gas flow;When needing to defrost to vortex tube, auxiliary gas channel is opened, closes operated proportional flow control valve, unlatching heating tube can defrost or deicing.The device has structure simple, and movement-less part, use cost is low, non-maintaining advantage.Realize the exact automatic control of vortex tube cold end air outlet temperature and gas output, control precision reaches ± 1 DEG C;Increase the cold air flow of 0 DEG C Zhi -9 DEG C low-temperature range, it is ensured that the cooling rate demand of optical communication module production test.
Description
Technical field
The invention belongs to optical communication production test technical fields, and in particular to the optical communication module low temperature based on vortex tube is raw
Produce device for testing and method.
Background technique
In optical communication module production test procedure, need to drop to the environment temperature where product using high/low temperature equipment
High temperature, the low temperature environment of setting, high/low temperature equipment used at present is mostly heat flow appearance, but it is purchased and use cost height.
Vortex tube is also a kind of common cooling system, but it is applied to high-precision, the occasion of a variety of cryogenic temperatures is deposited
In following problems:
1, the temperature and gas output of cold end can not be automatically controlled.
2, cold end air outlet temperature temperature lowering curve is non-linear, is unable to accurately control cold end air outlet temperature.
3, when low temperature environment is required in relatively high range.Such as in 0 DEG C of extremely -10 DEG C of range, according to different model
Vortex tube, the cooling rate in this section and cooling precision all can be different, and it is small that vortex tube cold end goes out throughput, will lead to product
Cooling rate it is excessively slow, be unable to meet production requirement.
4, prolonged cold is run, and inside vortex tube, cold end gas outlet, easy ice blockage gas circuit causes vortex tube can not be just
Often work.
In conclusion the accuracy of temperature control of traditional vortex tube at low ambient temperatures is low and cooling rate is slow, less effective.
Summary of the invention
High/low temperature cooling precision is low and fast when the purpose of the present invention is overcoming optical communication module production test in the prior art
Spend slow problem.
For this purpose, the present invention provides a kind of optical communication module temperature production device for testing based on vortex tube, including control
Device, vortex tube, gas thermometer, auxiliary gas channel and control valve processed;
The signal control terminal of the control valve and the gas thermometer are electrically connected with the controller;
The air inlet of the control valve is connect with compressed air gas source, the gas outlet of the control valve and the vortex tube
Air inlet connection,
The cold end gas outlet of the vortex tube connect and is formed gas mixing zone, institute with the gas outlet in the auxiliary gas channel
Gas mixing zone is stated equipped with target gas outlet, the gas thermometer is installed at target gas outlet.
Preferably, gas pressure sensor, the gas pressure sensor are equipped at the air intake in the auxiliary gas channel
It is electrically connected with the controller.
Preferably, the hot end gas outlet of the vortex tube is equipped with hot end muffler, and the cold end gas outlet of the vortex tube is set
There is cold end muffler.
Preferably, the control valve is operated proportional flow control valve, the signal control terminal of the operated proportional flow control valve and institute
State controller electrical connection.
Preferably, manual modulation valve, and the aperture of the manual modulation valve are equipped at the hot end gas outlet of the vortex tube
It is minimum.
Preferably, Hot-blast Heating pipe is equipped in the auxiliary gas channel.
Preferably, the controller is PLC programmable logic controller (PLC).
Preferably, air flow meter is equipped at the target gas outlet, the air flow meter is electrically connected with the controller
It connects.
The present invention provides the optical communication module temperature productions based on vortex tube to survey trial method, comprising:
When set temperature is lower than -9 DEG C, auxiliary gas channel is closed, controller is according to the gas temperature at target gas outlet
To control the aperture of operated proportional flow control valve to obtain the gas temperature of target gas outlet;
When set temperature is higher than -9 DEG C and is lower than 5 DEG C, auxiliary gas channel is opened, while controller is according to target gas outlet
The gas temperature at place controls the aperture of operated proportional flow control valve to obtain the gas temperature of target gas outlet;
When set temperature is higher than 5 DEG C, auxiliary gas channel is opened, closes operated proportional flow control valve, controller is according to target
Gas temperature at gas outlet assists the heating tube in gas channel to obtain the gas temperature of target gas outlet to control.
Preferably, when set temperature is higher than -9 DEG C and is lower than 5 DEG C, auxiliary gas channel is opened, controller goes out according to target
Gas temperature and flow at port control the aperture of operated proportional flow control valve and the aperture in auxiliary gas channel respectively to obtain
The gas temperature and flow of target gas outlet.
Beneficial effects of the present invention: this optical communication module temperature production based on vortex tube provided by the invention, which is tested, to be used
Device and method, including controller, vortex tube, gas thermometer, auxiliary gas channel and control valve;Under low temperature mode, work as needs
Air outlet temperature it is higher when, open auxiliary gas channel, controller controls ratio according to the gas temperature at target gas outlet
The aperture of flow control valve is to obtain the gas temperature of target gas outlet and can reach certain gas flow;When needs are to vortex
When pipe defrosts, auxiliary gas channel is opened, closes operated proportional flow control valve, unlatching heating tube can defrost or deicing.Device tool
There is structure simple, movement-less part, use cost is low, non-maintaining advantage.Realize vortex tube cold end air outlet temperature and gas output
Exact automatic control, control precision reach ± 1 DEG C;Increase the cold air flow of 0 DEG C Zhi -9 DEG C low-temperature range, it is ensured that light is logical
Interrogate the cooling rate demand of module production test.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the optical communication module temperature production device for testing the present invention is based on vortex tube;
Fig. 2 is to survey trial method ultralow temperature the present invention is based on the optical communication module temperature production of vortex tube to be not turned on auxiliary
The temperature profile of gas;
Fig. 3 is that the present invention is based on the optical communication module temperature productions of vortex tube to survey the temperature that trial method low temperature opens auxiliary gas
It writes music line chart;
Fig. 4 is the temperature rise song surveyed under trial method high temperature mode the present invention is based on the optical communication module temperature production of vortex tube
Line chart.
Description of symbols: controller 1, control valve 2, vortex tube 3, hot end muffler 4, cold end muffler 5, gas mixing
Area 6 assists gas channel 7.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features;In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or
It is more than two.
The optical communication module temperature production test device based on vortex tube that the embodiment of the invention provides a kind of, including control
Device, vortex tube, gas thermometer, auxiliary gas channel and control valve;
The signal control terminal of the control valve and the gas thermometer are electrically connected with the controller;
The air inlet of the control valve is connect with compressed air gas source, the gas outlet of the control valve and the vortex tube
Air inlet connection,
The cold end gas outlet of the vortex tube connect and is formed gas mixing zone, institute with the gas outlet in the auxiliary gas channel
Gas mixing zone is stated equipped with target gas outlet, the gas thermometer is installed at target gas outlet.
It follows that as shown in Figure 1, when optical module production test need to carry out cooling air blowing, principle to it are as follows: compression
Compressed air is pressed into control valve 2 by air gas source, and controller 1 can adjust the outlet from control valve 2 by the aperture of control valve 2
The gas outlet of flow, control valve 2 is connect with the air inlet of vortex tube 3, and gas distribution is formed thermal current and cold air by vortex tube 3
Stream, thermal current are discharged by the hot end gas outlet of vortex tube 3, and cold airflow is expelled to gas by the cold end gas outlet of vortex tube 3
Mixed zone 6, wherein the cold end gas outlet of vortex tube 3 is connect with auxiliary gas channel 7, assists the air inlet in gas channel 7 and compression empty
The connection of gas gas source, auxiliary are equipped with valve in gas channel 7, and after assisting the valve opening in gas channel 7, compressed air passes through auxiliary
The gas outlet in gas channel 7 is emitted into gas mixing zone 6, from vortex tube 3 come out cold air flow it is smaller, with from auxiliary gas channel
7 normal temperature airs come out are discharged after being mixed in gas mixing zone 6 from target gas outlet.Wherein, at target gas outlet
Gas thermometer is installed, controller 1 receives the data of gas thermometer to control the aperture of control valve 2, to can adjust
Air outlet temperature at target gas outlet.Meanwhile by assisting the air in gas channel 7 that the gas that can also improve at target gas outlet is added
Flow.
Controller 1 is generally realized using the components such as analog circuit, DSP, PLC or computer, and the prior art is belonged to, at this
In embodiment, by the way that the corresponding interface of the signaling interface of executive component such as control valve and gas thermometer and controller is connected,
The signal feedback data from control valve and gas thermometer can be received respectively, and after being handled according to the requirement of setting come
The aperture of adjusting control valve.Controller belongs to a part of automatic control system, belongs to the prior art, no longer excessive superfluous herein
It states.
Preferred scheme is equipped with gas pressure sensor at the air intake in the auxiliary gas channel, and the gas pressure passes
Sensor is electrically connected with the controller.It follows that controller 1 adjusts auxiliary gas channel gas by gas pressure sensor
Pressure guarantees that the gas pressure in auxiliary gas channel 7 is no more than 0.5MPa, otherwise will lead to, hot gas path makes as auxiliary gas
Used time cold air flow is excessive, waste of resource.
The hot end gas outlet of preferred scheme, the vortex tube is equipped with hot end muffler, the cold end outlet of the vortex tube
Mouth is equipped with cold end muffler.It, can be with having it follows that silencer refers to for while having the airflow line of noise transmission
The pipeline and elbow of sound absorption lining utilize the noise reductions device such as sectional area sudden change and the discontinuous pipeline of other acoustic impedances, make
Noise, which is decayed or reflected back, in pipeline achievees the effect that noise reduction.
Preferred scheme, the control valve are operated proportional flow control valve, the signal control terminal of the operated proportional flow control valve
It is electrically connected with the controller.It follows that control valve 2 includes pressure-control valve, directional control valve and flow control valve, here
Gas ratio control valve belong to one kind of flow control valve.Flow control valve includes throttle valve, speed governing valve etc..Directional control valve
Including solenoid directional control valve etc..Proportional flow control valve is composed of proportion electro-magnet and flow valve, is to be replaced to save with proportion electro-magnet
The hand adjustment device for flowing valve or speed governing valve, changes the aperture of throttle valve with input electrical signal, to adjust out throughput.
Preferred scheme, is equipped with manual modulation valve at the hot end gas outlet of the vortex tube, and the manual modulation valve
Aperture is minimum.It follows that there is the manual modulation valve of adjustable hot and cold air amount ratio inside the vortex tube, this valve is located at whirlpool
Flow tube hot end gas outlet.To obtain the minimum cryogenic temperature of vortex tube, which is transferred to cold air temperature most by the present apparatus
Low position, and fixed, so just only need to adjust the air inflow of vortex tube and the hot gas amount of hot air pipe can be obtained it is desired
The flow and temperature of target outlet.
Preferred scheme is equipped with Hot-blast Heating pipe in the auxiliary gas channel.It follows that when needing to vortex tube 3
When cold end carries out defrosting or deicing, control valve 2 and vortex tube 3 are closed, the heating tube of auxiliary gas channel 7 and the inside is opened, to gas
Body is heated, and can be defrosted in this way or deicing.
Preferred scheme, the controller are PLC programmable logic controller (PLC).According to the gas flow temperature of target gas outlet,
Pass through the aperture of PID control adjusting control valve 2.
Preferred scheme is equipped with air flow meter, the air flow meter and the controller at the target gas outlet
Electrical connection.It follows that controller 1 can be adjusted and can be thought to control valve 2 according to the data of gas thermometer
The temperature gas wanted, and the gas flow for assisting gas channel is controlled according to the data of the air flow meter at target gas outlet,
It can so integrate to obtain the gas temperature and flow at target gas outlet.
The present invention also provides the optical communication module temperature productions based on vortex tube to survey trial method, comprising:
When set temperature is lower than -9 DEG C, auxiliary gas channel is closed, controller is according to the gas temperature at target gas outlet
To control the aperture of operated proportional flow control valve to obtain the gas temperature of target gas outlet;
When set temperature is higher than -9 DEG C and is lower than 5 DEG C, auxiliary gas channel is opened, while controller is according to target gas outlet
The gas temperature at place controls the aperture of operated proportional flow control valve to obtain the gas temperature of target gas outlet;
When set temperature is higher than 5 DEG C, auxiliary gas channel is opened, closes operated proportional flow control valve, controller is according to target
Gas temperature at gas outlet assists the heating tube in gas channel to obtain the gas temperature of target gas outlet to control.
It follows that according to the demand set temperature of test.After controller 1 receives set temperature, set temperature is judged
Section, if set temperature be higher than -9 DEG C and be lower than 5 DEG C, since cold air flow is smaller if cold airflow cooling extent is bigger,
So that the cold end gas output of vortex tube 3 can very little, it is excessively slow thus to will lead to product cooling rate, is unable to satisfy production capacity and wants
It asks.Whether therefore the device is judged automatically according to set temperature range needs to open auxiliary gas, when range is higher than -9 DEG C and low
When 5 DEG C, need to open auxiliary gas channel 7, the cold end gas of the gas and vortex tube 3 that assist gas channel 7 is in gas mixing zone 3
Mixing, is then discharged out target gas outlet, to increase the cold air gas output of target gas outlet, product is made to cool down rapidly.Specifically, it beats
Auxiliary gas channel 7 is opened, but the heater strip of heating tube is not heated, by hot gas path, by the compressed air of room temperature, i.e.,
Above-mentioned auxiliary gas, is blown into gas mixing zone 6, will lead to the rising of gas mixing zone gas thermometer measured temperature value, thus controls
Device 1 can increase the aperture of control valve 2 according to the gas thermometer measured temperature of gas mixing zone 6, thereby increase into vortex
The compressed air require of pipe 3, and cause vortex tube cold end air outlet temperature to reduce, go out throughput increase, eventually lead to gas mixing
Area's cold air flow increases, and stablizes the cryogenic temperature in setting.Under the low temperature mode for having auxiliary gas, in gas mixing zone 6
Gas thermometer measured temperature and module product greenhouse cooling curve low temperature temperature lowering curve and operated proportional flow control valve as shown in Figure 3
Aperture-has auxiliary gas, blow air temperature setting value, that is, set temperature in figure, module temperature, that is, optical module product temperature, ratio
The opening size of valve opening, that is, control valve 2.
It is at this time ultralow temperature, vortex tube cold end gas output can satisfy product and drop rapidly if set temperature is lower than -9 DEG C
Auxiliary gas channel 7 is not opened in the requirement of temperature.According to whether opening auxiliary gas channel 7, the temperature curve of device is different, and device can be automatic
Corresponding control parameter is transmitted to cooling PID controller.The gas temperature of cooling PID controller real time receiving apparatus gas outlet
Spend the detected value of meter, and be compared with set temperature value, operation, control the aperture of operated proportional flow control valve 2, thus control into
The flow for entering the compressed air of vortex tube 3 controls the temperature of device gas outlet in set temperature.Specifically, work as set temperature
Lower than the temperature of gas mixing zone gas outlet gas thermometer feedback, then operated proportional flow control valve aperture increases, into vortex tube 3
Gas flow increase, 3 cold end air outlet temperature of vortex tube reduce, outlet increased flow capacity, thus lead to gas mixing zone gas outlet
Temperature reduction, outlet increased flow capacity, gas mixing zone gas thermometer measured temperature reduce, until outlet in gas mixing zone 6
Implication thermometer body measured temperature is equal to set temperature.Conversely, then comparing when set temperature is higher than the temperature of gas thermometer feedback
Example flow control valve opening reduces, and the gas flow into vortex tube 3 is reduced, the cold end air outlet temperature raising of vortex tube 3, outlet
Flow is reduced, and gas mixing zone air outlet temperature is thus caused to increase, the gas thermometer measured temperature liter in gas mixing zone 6
Height, until gas mixing zone gas outlet gas thermometer measured temperature is equal to low temperature set temperature.In such a mode, gas mixing
Area's gas thermometer measured temperature and module product greenhouse cooling curve are shown in Fig. 2 temperature lowering curve and operated proportional flow control valve aperture-
Without auxiliary gas.
As needed, it is defrosted to device, anti-ice operation, i.e., high temperature mode is opened, and controller 1 receives defrosting instruction
Afterwards, control valve 2 is closed, auxiliary gas channel 7 is opened simultaneously.Controller 1 according to setting defrosting temperature and device gas outlet
It measures the comparison of temperature, calculate, the heating time of the Hot-blast Heating pipe in control auxiliary gas channel 7, thus by device gas outlet
The temperature that temperature control is set in defrosting, to achieve the purpose that defrosting, deicing.Specifically, according to desired temperature, pass through control
The heating time of Hot-blast Heating pipe heats to compressed air, when set temperature is greater than gas mixing zone gas outlet gas thermometer
Measured temperature then increases the heating time of heating tube, so that the compressed air warming temperature after heating tube increases, finally mentions
High gas mixing zone gas outlet gas thermometer measured temperature;When high temperature set temperature is less than gas mixing zone gas outlet gas temperature
Degree meter measured temperature, then reduce the heating time of heating tube, so that the compressed air warming temperature after heating tube reduces, most
The low gas mixing zone gas outlet gas thermometer measured temperature of final decline.So that gas mixing zone gas outlet gas thermometer institute thermometric
Degree is stablized near high temperature set temperature.Gas mixing zone gas thermometer measured temperature and tested module product in such a mode
Greenhouse cooling curve is shown in Fig. 4 heating curve, and heater strip temperature is the temperature value for assisting the heating tube in gas channel 7 in figure, blows
Temperature is mixed zone gas outlet gas thermometer measured temperature.
The present invention is cooled down using vortex tube, and structure is simple, non-maintaining, low cost, the Cryo Equipment used than tradition
(heat flow appearance) power consumption is low, can save electricity, lower than Cryo Equipment (heat flow appearance) air consumption that tradition uses, and can save use
Tolerance, the device volume is small, more convenient to carry out building for testboard position.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.
Claims (10)
1. the optical communication module temperature production device for testing based on vortex tube, it is characterised in that: including controller, vortex tube,
Gas thermometer, auxiliary gas channel and control valve;
The signal control terminal of the control valve and the gas thermometer are electrically connected with the controller;
The air inlet of the control valve is connect with compressed air gas source, the air inlet of the gas outlet of the control valve and the vortex tube
Mouth connection,
The cold end gas outlet of the vortex tube connect and is formed gas mixing zone, the gas with the gas outlet in the auxiliary gas channel
Body mixed zone is equipped with target gas outlet, and the gas thermometer is installed at target gas outlet.
2. the optical communication module temperature production device for testing according to claim 1 based on vortex tube, it is characterised in that:
It is equipped with gas pressure sensor at the air intake in the auxiliary gas channel, the gas pressure sensor is electrically connected with the controller
It connects.
3. the optical communication module temperature production device for testing according to claim 1 based on vortex tube, it is characterised in that:
The hot end gas outlet of the vortex tube is equipped with hot end muffler, and the cold end gas outlet of the vortex tube is equipped with cold end muffler.
4. the optical communication module temperature production device for testing according to claim 1 based on vortex tube, it is characterised in that:
The control valve is operated proportional flow control valve, and the signal control terminal of the operated proportional flow control valve is electrically connected with the controller.
5. the optical communication module temperature production device for testing according to claim 1 based on vortex tube, it is characterised in that:
Manual modulation valve is equipped at the hot end gas outlet of the vortex tube, and the aperture of the manual modulation valve is minimum.
6. the optical communication module temperature production device for testing according to claim 1 based on vortex tube, it is characterised in that:
Hot-blast Heating pipe is equipped in the auxiliary gas channel.
7. the optical communication module temperature production device for testing according to claim 1 based on vortex tube, it is characterised in that:
The controller is PLC programmable logic controller (PLC).
8. the optical communication module temperature production device for testing according to claim 1 based on vortex tube, it is characterised in that:
Air flow meter is equipped at the target gas outlet, the air flow meter is electrically connected with the controller.
9. the optical communication module temperature production based on vortex tube surveys trial method characterized by comprising
When set temperature is lower than -9 DEG C, auxiliary gas channel is closed, controller is controlled according to the gas temperature at target gas outlet
The aperture of operated proportional flow control valve processed is to obtain the gas temperature of target gas outlet;
When set temperature be higher than -9 DEG C and be lower than 5 DEG C when, open auxiliary gas channel, while controller according to target gas outlet at
Gas temperature controls the aperture of operated proportional flow control valve to obtain the gas temperature of target gas outlet;
When set temperature is higher than 5 DEG C, auxiliary gas channel is opened, closes operated proportional flow control valve, controller is according to target outlet
Gas temperature at mouthful assists the heating tube in gas channel to obtain the gas temperature of target gas outlet to control.
10. the optical communication module temperature production according to claim 9 based on vortex tube surveys trial method, feature exists
In: when set temperature is higher than -9 DEG C and is lower than 5 DEG C, auxiliary gas channel is opened, controller is according to the gas at target gas outlet
Temperature and flow control the aperture of operated proportional flow control valve and the aperture in auxiliary gas channel respectively to obtain target gas outlet
Gas temperature and flow.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113296556A (en) * | 2021-06-29 | 2021-08-24 | 东莞市正文机械有限公司 | Automatic air filling intelligent control system and method |
CN113784591A (en) * | 2021-09-07 | 2021-12-10 | 横店集团东磁股份有限公司 | Temperature control adjusting system and temperature control adjusting method for IV (IV) tester |
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2019
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JPH08233383A (en) * | 1995-02-28 | 1996-09-13 | Hisamoto Suzuki | Cooler |
CN2497238Y (en) * | 2001-08-29 | 2002-06-26 | 张歆宇 | Vortex refrigerating apparatus |
US20100139292A1 (en) * | 2008-12-08 | 2010-06-10 | Ram Grand | Temperature adjustable airflow device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113296556A (en) * | 2021-06-29 | 2021-08-24 | 东莞市正文机械有限公司 | Automatic air filling intelligent control system and method |
CN113784591A (en) * | 2021-09-07 | 2021-12-10 | 横店集团东磁股份有限公司 | Temperature control adjusting system and temperature control adjusting method for IV (IV) tester |
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