CN207751204U - Environmental test chamber dehumidifying, refrigeration system - Google Patents
Environmental test chamber dehumidifying, refrigeration system Download PDFInfo
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- CN207751204U CN207751204U CN201820107467.XU CN201820107467U CN207751204U CN 207751204 U CN207751204 U CN 207751204U CN 201820107467 U CN201820107467 U CN 201820107467U CN 207751204 U CN207751204 U CN 207751204U
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- bypass
- dehumidifying
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- refrigeration
- environmental test
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Abstract
The utility model discloses a kind of dehumidifying of environmental test chamber, refrigeration systems, including the refrigeration bypass, dehumidifying bypass and cold bypass being arranged in parallel on actuating unit and actuating unit, actuating unit is arranged outside chamber, by the device for drying and filtering, condenser and compressor set that are sequentially connected in series at being individually arranged in parallel thermal bypass on the compressor；Refrigerating evaporator in refrigeration bypass is arranged in chamber, the corner or fringe region that the dehumidify evaporimeter in dehumidifying bypass is arranged in chamber.The depth of dehumidify evaporimeter is shorter than refrigerating evaporator, and size is relatively small, the corner being arranged in chamber or fringe region, not on main wind path, the droplet condensed on its fin will not be influenced by circulated air, can fall discharge after condensation rapidly, and effect on moisture extraction is more excellent.Counterbalance valve is set on the muffler of dehumidification system, dehumidify evaporimeter internal refrigeration storage agent temperature is controlled by counterbalance valve, makes it higher than 0 degree, ensures that dehumidify evaporimeter will not be because of working long hours and frosting.
Description
Technical field
The utility model is related to environment test device technical field, especially a kind of environmental test chamber dehumidifying, refrigeration system.
Background technology
It dehumidifies, the dehumidification mode of refrigeration system includes ventilation drying, freeze drying, liquid desiccant dehumidifying and solid absorption
Agent dehumidifying etc. mostly uses finned evaporator dehumidifying in freeze drying, and dehumidifying, refrigeration system are main in entire liquefaction process
For vaporous water to be converted to liquid water.The dehumidifying of existing environment test device, refrigeration system mostly set dehumidify evaporimeter
It sets in the top of refrigerating evaporator, and dehumidify evaporimeter is consistent with the size of refrigerating evaporator, fin distance is often smaller, practical
Found after use, fin apart from it is too small when, due to the presence of surface tension, the droplet after condensation is easily hung between two panels fin
It is not easy to fall, and is easy to block up air duct when frosting, spacing of fin is smaller, blocks up faster.Dehumidify evaporimeter and system
The size of cold evaporator is equally big, while on the main wind path of circulated air, when circulated air passes through dehumidify evaporimeter, a large amount of wind
The droplet condensed on dehumidify evaporimeter fin can be made to hang over to be not easy to fall on fin, droplet will slowly steam after the time has been grown
Hair, fin dries up by circulated air completely, and normal 25 degree of circulated air, which needs the temperature of dehumidify evaporimeter to drop to, very low could condense
Sweating, effect on moisture extraction are poor.
Utility model content
The applicant be directed to above-mentioned existing production in dehumidifying, refrigeration system dehumidify evaporimeter on droplet be not easy to fall,
It is easy to block when frosting, the shortcomings of effect on moisture extraction is poor, a kind of environmental test chamber dehumidifying reasonable for structure, refrigeration system is provided, from
And can accurately control prevents dehumidify evaporimeter frosting, and the droplet on fin is easy to fall, the velocity of discharge is fast, effect on moisture extraction
It is good.
Technical solution used by the utility model is as follows：
By the refrigeration being arranged in parallel in a kind of dehumidifying of environmental test chamber, refrigeration system, including actuating unit and actuating unit
Road, dehumidifying bypass and cold bypass, actuating unit is arranged outside chamber, by the device for drying and filtering, condenser and pressure being sequentially connected in series
Contracting machine forms, and is individually arranged in parallel thermal bypass on the compressor；Refrigerating evaporator in refrigeration bypass is arranged in chamber, removes
The corner or fringe region that dehumidify evaporimeter in wet bypass is arranged in chamber.
As a further improvement of the above technical scheme：
The depth of the dehumidify evaporimeter is shorter than refrigerating evaporator.
Counterbalance valve is set on muffler between the dehumidify evaporimeter and compressor.
The dehumidify evaporimeter uses the hydrophilic aluminium film evaporator of big spacing.
The cold bypass is composed in series by cold loop solenoid valve and throttling set, and the thermal bypass is returned by the heat being arranged in series
Way solenoid valve and throttling set composition.
It is also in series with refrigeration solenoid valve and throttling set in the refrigeration bypass, throttling is also in series in the dehumidifying bypass
Device and dehumidify magnetic valve.
The throttling set can be capillary, heating power expansion valve or electric expansion valve.
Area and trial zone, motor are arranged outside the chamber above control zone the chamber inside points in order to control, horse
The centrifugal impeller inside output end joint test case reached.
It is additionally provided with humidifier, heater above the refrigerating evaporator, discharge outlet is arranged in the lower section of dehumidify evaporimeter.
Temperature sensor and humidity sensor are provided on the cabinet wall of the chamber, corresponding trial zone is in side case
Observation window is opened up on body.
The beneficial effects of the utility model are as follows：
The depth for the dehumidify evaporimeter that the utility model uses is shorter than refrigerating evaporator, and size is relatively small, and is arranged
Corner in chamber or fringe region, not on main wind path, therefore circulated air only has part that can pass through dehumidify evaporimeter, removes
The surface wind speed of wet evaporator is small, and the droplet condensed on fin will not be influenced by circulated air, can fall rapidly after condensation
Discharge is fallen, effect on moisture extraction is more excellent.Chamber temperature-fall period humidity is too high, and dehumidify evaporimeter cools down suddenly, moisture can except
Wet evaporator surface frosting freezes to influence cooling-down effect, and counterbalance valve is arranged on the muffler of dehumidification system, passes through the back of the body
Pressure valve controls dehumidify evaporimeter internal refrigeration storage agent temperature, so that its temperature is higher than 0 degree, to ensure that dehumidify evaporimeter will not be because of length
Time service and frosting.The utility model is using the hydrophilic aluminium film evaporator of big spacing, and evaporator fin distance is than common
Want slightly larger, the droplet after condensation is not easy between hanging over two panels fin, therefore is easier to fall, and is conducive to dehumidify；Fin surface
Hydrophilic aluminium film is covered, hydrophilic aluminium film can further decrease the surface tension of droplet, drain conducive to the quick of condensed water when defrosting.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1, hot loop solenoid valve；2, condenser；3, device for drying and filtering；4, cold loop solenoid valve；5, dehumidify electromagnetism
Valve；6, freeze solenoid valve；7, throttling set；8, dehumidify evaporimeter；9, refrigerating evaporator；10, heater；11, humidifier；12、
Centrifugal impeller；13, motor；14, temperature sensor；15, humidity sensor；16, trial zone；17, observation window；18, chamber；
19, discharge outlet；20, counterbalance valve；21, compressor.
Specific implementation mode
Below in conjunction with the accompanying drawings, illustrate specific embodiment of the present utility model.
The dehumidifying of the utility model, refrigeration system are arranged outside chamber 18, and left part control zone is divided into inside chamber 18
Outside the chamber 18 being arranged above control zone with right part trial zone 16, motor 13, the output end connection of motor 13 is located at examination
Centrifugal impeller 12 inside tryoff 18 is disposed with humidifier from top to bottom in the air duct below centrifugal impeller 12
11, heater 10, refrigerating evaporator 9 and dehumidify evaporimeter 8.The upper right in chamber 18 can also be arranged in dehumidify evaporimeter 8
The corners such as angle or other fringe regions, not on the main wind path of circulated air.Discharge outlet 19 is arranged in the lower section of dehumidify evaporimeter 8,
Dehumidify evaporimeter 8 condenses the liquid water fallen and is discharged outside chamber 18 rapidly by discharge outlet 19.The depth ratio of dehumidify evaporimeter 8
Refrigerating evaporator 9 it is short, and not on main wind path, therefore circulated air only has part that can pass through dehumidify evaporimeter 8, dehumidify evaporimeter
The droplet condensed on 8 fin will not be influenced by circulated air, can fall discharge after condensation rapidly, and effect on moisture extraction is more excellent
It is different.Refrigerating evaporator 9 and dehumidify evaporimeter 8 are all made of the hydrophilic aluminium film evaporator of big spacing, and fin surface covers hydrophilic aluminium film, profit
Condensed water quickly drains when defrosting.Temperature sensor 14 and humidity sensor are set on the cabinet wall above trial zone 16
Device 15, corresponding trial zone 16 open up observation window 17 on the babinet of side, and observation window 17 is for observing trial target.
Dehumidifying, refrigeration system actuating unit be made of the device for drying and filtering 3, condenser 2 and compressor 21 being sequentially connected in series,
Actuating unit is connected with refrigeration bypass, dehumidifying bypass, cold bypass respectively, i.e., refrigeration bypass, dehumidifying bypass, three tunnels of cold bypass are simultaneously
Connection setting.Specifically, the refrigerating evaporator 9 of refrigeration bypass passes through exterior line and throttling set 7, refrigeration solenoid valve 6 and power
The dehumidify evaporimeter 8 of mechanisms in series, the bypass that dehumidifies passes through exterior line and throttling set 7, dehumidify magnetic valve 5 and actuating unit string
Join, counterbalance valve 20 is set on the muffler between dehumidify evaporimeter 8 and compressor 21, ensures that the temperature of dehumidify evaporimeter 8 is high
In 0 degree, make droplet on fin will not frosting freeze, can smoothly fall into discharge outlet 19, cold bypass is by cold loop electromagnetism
Valve 4 and throttling set 7 are composed in series.Thermal bypass is individually arranged in parallel on compressor 21, thermal bypass is returned by the heat being arranged in series
Way solenoid valve 1 and throttling set 7 form.
Throttling set 7 can be capillary, heating power expansion valve or electric expansion valve.
When environmental test chamber 18 works, when carrying out humid test, the water in heating humidifier 11 generates steam stream cartonning
Body reduces the humidity in chamber 18 to increase the humidity in chamber 18 using dehumidify evaporimeter 8.It is tried when into trip temperature
When testing, chamber 18 is down to the low temperature of setting using refrigerating evaporator 9, the high temperature of setting is risen to using heater 10.No matter
The controlling test of humidity or temperature is required for opening motor 13, and motor 13 drives centrifugal impeller 12 to rotate, 12 band of centrifugal impeller
Gas in dynamic air duct is flowed toward trial zone 16, and gas flows back in air duct clockwise through trial zone 16, and air-flow side is followed
Circulation dynamic final so that trial zone 16 is reached setting humidity or temperature.
When utility model works, compressor 21 is started to work, and compressor 21 absorbs the gaseous refrigerant of low-temp low-pressure, warp
Overcompression machine 21 becomes the gaseous refrigerant of high temperature and pressure after compressing, cool down by condenser 2 and form the liquid system of cryogenic high pressure
Cryogen removes water by the drying of device for drying and filtering 3, flows into refrigeration bypass, dehumidifying bypass, three tunnels of cold bypass.When needing refrigeration, refrigeration
The refrigeration solenoid valve 6 of bypass is opened, and dehumidifying bypass and cold bypass are closed, and the liquid refrigerant of cryogenic high pressure is by refrigeration solenoid valve
Enter throttling set 7 after 6, become the liquid refrigerant of low-temp low-pressure, finally enters refrigerating evaporator 9, refrigerating evaporator 9 and examination
Air exchange heat in tryoff 18, the temperature in chamber 18 decline, after the liquid refrigerant of low-temp low-pressure has exchanged heat
The gaseous refrigerant for becoming low-temp low-pressure enters back into compressor 21, carries out circularly cooling.When being dehumidified, dehumidify bypass
Dehumidify magnetic valve 5 is opened, and refrigeration bypass and cold bypass are closed, and the liquid refrigerant of cryogenic high pressure is laggard by dehumidify magnetic valve 5
Enter throttling set 7, become the liquid refrigerant of low-temp low-pressure, finally enters dehumidify evaporimeter 8, the fin in dehumidify evaporimeter 8
Temperature reduces, and less than the temperature in chamber 18, temperature is rapid when the gaseous state steam in chamber 18 encounters cold dehumidify evaporimeter 8
Drop, the temperature of dehumidify evaporimeter 8 is less than when the dew-point temperature of air, condensing into liquid water in chamber 18, liquid water is from bottom
Discharge outlet 19 exclude rapidly, to reduce the humidity of chamber 18, the liquid refrigerant of low-temp low-pressure becomes after having exchanged heat
At the gaseous refrigerant of low-temp low-pressure, compressor 21 is entered back into, carries out circulating dehumidification.When refrigeration and dehumidifying are carried out at the same time, simultaneously
Refrigeration solenoid valve 6 and dehumidify magnetic valve 5 are opened, refrigerant is recycled in refrigeration bypass and dehumidifying bypass two-way simultaneously, together
When play refrigeration and the effect of dehumidifying.
If you do not need to being freezed and being dehumidified, refrigeration solenoid valve 6 and dehumidify magnetic valve 5, cold loop electromagnetism are simultaneously closed off
Valve 4 is opened, the low temperature and low pressure liquid that cryogenic high pressure liquid is formed after cold loop solenoid valve 4 and throttling set 7, then directly
Compressor 21, therefore meeting frosting on the return of compressor 21 are returned to, when the temperature controller on thermal bypass detects pipe temperature
When less than set temperature, hot loop solenoid valve 1 is opened, and the high temperature and high pressure gas that compressor 21 generates after compressing is directly through hot loop
Solenoid valve 1 and throttling set 7 return to compressor 21, and the return to heat compressor 21 carries out defrost.
Throttling set 7 can be controlled individually to adjust the throughput of refrigerant, to control into refrigerating evaporator 9 and remove
The flow of the refrigerant of wet evaporator 8, to meet the needs of different degrees of cooling and dehumidifying.18 temperature-fall period humidity of chamber
It is too high, dehumidify evaporimeter 8 suddenly cool down, moisture can 8 surface frosting of dehumidify evaporimeter or freeze to influence cooling-down effect,
Counterbalance valve 20 is set on the muffler of dehumidification system, 8 internal refrigeration storage agent temperature of dehumidify evaporimeter is controlled by counterbalance valve 20, makes it
Temperature is higher than 0 degree, to ensure that dehumidify evaporimeter 8 will not be because of working long hours and frosting.When compressor 21 is shut down, dehumidifying
Solenoid valve 5 and refrigeration solenoid valve 6 automatically cut off liquid line, and refrigerant liquid is prevented to continue towards dehumidify evaporimeter 8 and refrigeration
Evaporator 9 causes refrigerant liquid hammer when compressor 21 being prevented to be again started up.
Above description is the explanation to the utility model, is not the restriction to utility model, without prejudice to the utility model
In the case of spirit, the utility model can make any type of modification.
Claims (10)
1. a kind of environmental test chamber dehumidifying, refrigeration system, it is characterised in that：Including being arranged in parallel on actuating unit and actuating unit
Refrigeration bypass, dehumidifying bypass and cold bypass, actuating unit be arranged in chamber（18）Outside, the device for drying and filtering by being sequentially connected in series
（3）, condenser（2）And compressor（21）Composition, in compressor（21）On be individually arranged in parallel thermal bypass；System in refrigeration bypass
Cold evaporator（9）It is arranged in chamber（18）It is interior, the dehumidify evaporimeter in dehumidifying bypass（8）It is arranged in chamber（18）Interior angle
It falls or fringe region.
2. environmental test chamber dehumidifying described in accordance with the claim 1, refrigeration system, it is characterised in that：The dehumidify evaporimeter（8）
Depth compare refrigerating evaporator（9）It is short.
3. environmental test chamber dehumidifying described in accordance with the claim 1, refrigeration system, it is characterised in that：In the dehumidify evaporimeter
（8）And compressor（21）Between muffler on counterbalance valve is set（20）.
4. environmental test chamber dehumidifying described in accordance with the claim 1, refrigeration system, it is characterised in that：The dehumidify evaporimeter（8）
Using the hydrophilic aluminium film evaporator of big spacing.
5. environmental test chamber dehumidifying described in accordance with the claim 1, refrigeration system, it is characterised in that：The cold bypass is by cold time
Way solenoid valve（4）And throttling set（7）It is composed in series, the thermal bypass is by the hot loop solenoid valve that is arranged in series（1）And throttling
Device（7）Composition.
6. environmental test chamber dehumidifying described in accordance with the claim 1, refrigeration system, it is characterised in that：In the refrigeration bypass also
It is in series with refrigeration solenoid valve（6）And throttling set（7）, throttling set is also in series in dehumidifying bypass（7）With dehumidifying electromagnetism
Valve（5）.
7. according to environmental test chamber described in claim 5 or 6 dehumidifying, refrigeration system, it is characterised in that：The throttling set
（7）Can be capillary, heating power expansion valve or electric expansion valve.
8. environmental test chamber dehumidifying described in accordance with the claim 1, refrigeration system, it is characterised in that：The chamber（18）It is interior
Part area and trial zone in order to control（16）, motor（13）The chamber being arranged above control zone（18）Outside, motor（13）'s
Output end joint test case（18）Internal centrifugal impeller（12）.
9. environmental test chamber dehumidifying described in accordance with the claim 1, refrigeration system, it is characterised in that：The refrigerating evaporator（9）
Top is additionally provided with humidifier（11）, heater（10）, discharge outlet（19）It is arranged in dehumidify evaporimeter（8）Lower section.
10. environmental test chamber dehumidifying described in accordance with the claim 1, refrigeration system, it is characterised in that：The chamber（18）'s
Temperature sensor is provided on cabinet wall（14）And humidity sensor（15）, corresponding trial zone（16）It is opened up on the babinet of side
Observation window（17）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820107467.XU CN207751204U (en) | 2018-01-23 | 2018-01-23 | Environmental test chamber dehumidifying, refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820107467.XU CN207751204U (en) | 2018-01-23 | 2018-01-23 | Environmental test chamber dehumidifying, refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207751204U true CN207751204U (en) | 2018-08-21 |
Family
ID=63153972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820107467.XU Active CN207751204U (en) | 2018-01-23 | 2018-01-23 | Environmental test chamber dehumidifying, refrigeration system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207751204U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283001A (en) * | 2018-11-12 | 2019-01-29 | 云南电网有限责任公司保山供电局 | It is a kind of for verifying the equipment and its application method of moisture-proof condensation device effect on moisture extraction |
| CN109999926A (en) * | 2019-04-26 | 2019-07-12 | 上海利正卫星应用技术有限公司 | Antifrost high and low temperature alternating humidity test chamber |
| CN111238090A (en) * | 2020-01-09 | 2020-06-05 | 西安交通大学 | Micro-channel evaporator and control method thereof |
| CN112902520A (en) * | 2021-02-01 | 2021-06-04 | 西安交通大学 | Snow making machine suitable for multi-region climatic conditions, control method and working method |
| CN112984850A (en) * | 2021-03-23 | 2021-06-18 | 上海理工大学 | Energy-saving high-low temperature environment test box refrigerating system |
-
2018
- 2018-01-23 CN CN201820107467.XU patent/CN207751204U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283001A (en) * | 2018-11-12 | 2019-01-29 | 云南电网有限责任公司保山供电局 | It is a kind of for verifying the equipment and its application method of moisture-proof condensation device effect on moisture extraction |
| CN109999926A (en) * | 2019-04-26 | 2019-07-12 | 上海利正卫星应用技术有限公司 | Antifrost high and low temperature alternating humidity test chamber |
| CN109999926B (en) * | 2019-04-26 | 2021-07-06 | 上海利正卫星应用技术有限公司 | Anti-frosting high-low temperature alternating damp-heat test box |
| CN111238090A (en) * | 2020-01-09 | 2020-06-05 | 西安交通大学 | Micro-channel evaporator and control method thereof |
| CN111238090B (en) * | 2020-01-09 | 2021-02-02 | 西安交通大学 | Micro-channel evaporator and control method thereof |
| CN112902520A (en) * | 2021-02-01 | 2021-06-04 | 西安交通大学 | Snow making machine suitable for multi-region climatic conditions, control method and working method |
| CN112902520B (en) * | 2021-02-01 | 2022-05-06 | 西安交通大学 | Snow making machine suitable for multi-region climatic conditions, control method and working method |
| CN112984850A (en) * | 2021-03-23 | 2021-06-18 | 上海理工大学 | Energy-saving high-low temperature environment test box refrigerating system |
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