CN211823218U - Humiture test box adopting coil pipe for dehumidification - Google Patents
Humiture test box adopting coil pipe for dehumidification Download PDFInfo
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- CN211823218U CN211823218U CN201921041700.XU CN201921041700U CN211823218U CN 211823218 U CN211823218 U CN 211823218U CN 201921041700 U CN201921041700 U CN 201921041700U CN 211823218 U CN211823218 U CN 211823218U
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Abstract
The utility model discloses an adopt humiture test case of coil pipe dehumidification, it includes: a box body and a refrigerating system; the refrigeration system includes: the system comprises a compressor, a condenser, a throttle valve and an evaporator coil; the output end of the compressor is connected with the input end of the condenser, and the output end of the condenser is connected with the input end of the throttle valve; the output end of the throttle valve is connected with the input end of the evaporator coil; the output end of the evaporator coil is connected with the input end of the compressor; the box body comprises an accommodating cavity, a circulating fan, a circulating air duct and a box body inner container; the compressor, the condenser and the throttle valve are arranged in the accommodating cavity; the circulating air duct is communicated with the inner container of the box body, and the evaporator coil and the coil are arranged in the user circulating air duct; the circulating fan is connected with the circulating air duct and used for generating circulating air in the circulating air duct. The utility model discloses simple structure easily realizes. The evaporator coil can be prevented from being blocked, and the humidity in the box body can be kept stable for a long time.
Description
Technical Field
The utility model belongs to the technical field of environmental test equipment, a adopt humiture test case of coil pipe dehumidification particularly.
Background
The environmental test equipment is an indispensable instrument for technological development and technical progress. The environmental test equipment simulates the environmental states of temperature, humidity and the like which may appear on the earth through a scientific technology manually, and tests various performance indexes of parts and materials of related products such as electronic electricians, automobile motorcycles, aerospace, ship weapons, universities and colleges, scientific research units and the like under the condition of high-temperature and low-temperature (alternating) cyclic change. Wherein, the humidity range of temperature and humidity test case is at 20% to 98%, when the test case was in 50% to 98% high humidity control, the inside both need dehumidify of box, need the humidification again to guarantee that both balance reaches humidity stably. The existing high equipment adopts a fin type evaporator coil to dehumidify, and the problem of the scheme is that the surface of the evaporator coil is easy to freeze when meeting water in a low-temperature environment, and the evaporator coil is blocked due to long-time operation, so that the humidity in the box cannot be kept stable. Therefore, how to develop a novel environmental test chamber self-cascade refrigeration system to overcome the above problems of the prior art solutions is a direction to be studied by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adopt humiture test case of coil pipe dehumidification can avoid the stifled stopper of evaporimeter coil pipe, keeps humidity in the box to keep stable for a long time.
The technical scheme is as follows:
the utility model provides an adopt temperature and humidity test case of coil pipe dehumidification, it includes: a box body and a refrigerating system; the refrigeration system adopts R404a as a refrigerant and comprises: the system comprises a compressor, a condenser, a throttle valve and an evaporator coil; the output end of the compressor is connected with the input end of the condenser, and the output end of the condenser is connected with the input end of the throttle valve; the output end of the throttle valve is connected with the input end of the evaporator coil; the output end of the evaporator coil is connected with the input end of the compressor; the box body comprises an accommodating cavity, a circulating fan, a circulating air duct and a box body inner container; the compressor, the condenser and the throttle valve are arranged in the accommodating cavity; the evaporator coil is installed in the circulating air duct; the circulating fan is connected with the circulating air duct and used for generating circulating air in the circulating air duct. The circulating air duct is communicated with the inner container of the box body.
By adopting the technical scheme: the compressor is used for compressing the refrigerant from low pressure to high temperature and high pressure; the high-temperature and high-pressure refrigerant enters a condenser to emit heat and is condensed to obtain a liquid refrigerant; and then the refrigerant enters a heat exchanger after being throttled, decompressed and refrigerated by a throttle valve. Cooled again in the heat exchanger and returned to the compressor. In the process, the evaporator coil is arranged in the circulating air duct, and heat exchange is carried out between circulating air generated by driving of the circulating fan and air in the inner container of the box body, so that the space of the inner container is refrigerated to reach a set temperature; meanwhile, the problems that the evaporator is blocked and the humidity cannot be stabilized due to the fact that the evaporator is easy to freeze when the surface of the evaporator meets water are solved.
Preferably, in the temperature and humidity test box adopting coil pipe dehumidification: the refrigeration system further includes an oil separator; the oil separator is arranged between the compressor and the condenser, the input end of the oil separator is connected with the output end of the compressor, and the output end of the oil separator is connected with the input end of the condenser.
By adopting the technical scheme: the oil separator is arranged to separate the refrigerant output by the compressor, separate the refrigerant mixed in the refrigerant and return the refrigerant to the compressor, so that the long-term stable operation of the compressor is ensured.
Preferably, in the temperature and humidity test box adopting coil pipe dehumidification: the compressor adopts a piston compressor.
Preferably, in the temperature and humidity test box adopting coil pipe dehumidification: the condenser adopts an air-cooled condenser.
Preferably, in the temperature and humidity test box adopting coil pipe dehumidification: the throttle valve adopts a thermostatic expansion valve.
The utility model discloses simple structure easily realizes. The evaporator coil can be prevented from being blocked, and the humidity in the box body can be kept stable for a long time.
Drawings
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:
fig. 1 is a schematic structural view of embodiment 1. Connecting pipelines among all parts in the refrigeration system are omitted in the figure;
fig. 2 is a schematic view of a connection structure in embodiment 1.
The correspondence between each reference numeral and the part name is as follows:
11. a compressor; 12. an oil separator; 13. a condenser; 14. a throttle valve; 15. an evaporator coil; 21. an accommodating cavity; 22. a circulating fan; 23. a circulating air duct; 24. an inner container of the box body; 25. a touch panel.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following will be further described with reference to various embodiments.
As shown in fig. 1:
the utility model provides an adopt temperature and humidity test case of coil pipe dehumidification, it includes: a cabinet and a refrigeration system.
Wherein the refrigeration system comprises: a compressor 11, an oil separator 12, a condenser 13, a throttle valve 14, an evaporator coil 15; the output end of the compressor 11 is connected with the input end of the oil separator 12; the output end of the oil separator 12 is connected with the input end of a condenser 13, and the output end of the condenser 13 is connected with the input end of a throttle valve 14; the output end of the throttle valve 14 is connected with the input end of an evaporator coil 15; the output end of the evaporator coil 15 is connected with the input end of the compressor 11; the box body comprises an accommodating cavity 21, a circulating fan 22, a circulating air duct 23, a box body inner container 24 and a touch panel 25; the compressor 11, the condenser 13 and the throttle valve 14 are arranged in the accommodating cavity 21; the evaporator coil 15 is installed in the circulating air duct 23; the circulating fan 22 is connected with the circulating air duct 23 and used for generating circulating air in the circulating air duct 23. The circulating air duct 23 is communicated with the inner container 24 of the box body.
In this example: the compressor 11 is a piston compressor. The condenser 13 is an air-cooled condenser. The throttle valve 14 is a thermostatic expansion valve.
In practice, the working process is as follows:
r404a is used as a refrigerant, a single compressor is used for realizing low-temperature refrigeration at-40 ℃, the control of temperature and humidity in the accommodating cavity of the high-low temperature box is realized, and when the working conditions of temperature and humidity are simultaneously carried out, the temperature range is from 20 ℃ to +90 ℃, and the humidity range is from 20% to 98%. An evaporator coil 15 of the refrigerating system is positioned in an air duct of the high-low temperature box body and exchanges heat with air under the driving of a circulating fan. The evaporator coil 15 is located inside the air duct, and takes the working condition of 30 ℃ temperature and 95% humidity as an example, under the working condition, the refrigerating unit is required to perform refrigeration and cooling and the heater is required to heat to maintain the temperature at 30 ℃, and the low-temperature coil is also required to perform dehumidification and the humidifier is required to perform humidification to maintain the humidity. Although the low-temperature refrigerant flows in the evaporator coil 15, the surface of the coil is not easy to freeze, and the air channel is not blocked, so that the evaporator can operate for a long time.
The above description is only for the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. The protection scope of the present invention is subject to the protection scope of the claims.
Claims (6)
1. The utility model provides an adopt humiture test case of coil pipe dehumidification which characterized in that includes: a box body and a refrigerating system;
the refrigeration system adopts R404a as a refrigerant and comprises: a compressor (11), a condenser (13), a throttle valve (14) and an evaporator coil (15); the output end of the compressor (11) is connected with the input end of a condenser (13), and the output end of the condenser (13) is connected with the input end of a throttle valve (14); the output end of the throttle valve (14) is connected with the input end of an evaporator coil (15); the output end of the evaporator coil (15) is connected with the input end of the compressor (11);
the box body comprises an accommodating cavity (21), a circulating fan (22), a circulating air duct (23) and a box body inner container (24); the compressor (11), the condenser (13) and the throttle valve (14) are arranged in the accommodating cavity (21); the evaporator coil (15) is installed in a circulating air duct (23); the circulating fan (22) is connected with the circulating air duct (23) and is used for generating circulating air in the circulating air duct (23); the circulating air duct (23) is communicated with the inner container (24) of the box body.
2. The temperature and humidity test chamber adopting coil dehumidification according to claim 1, wherein: the refrigeration system further comprises an oil separator (12); the oil separator (12) is arranged between the compressor (11) and the condenser (13), the input end of the oil separator is connected with the output end of the compressor (11), and the output end of the oil separator is connected with the input end of the condenser (13).
3. The temperature and humidity test chamber adopting coil dehumidification according to claim 1, wherein: the box body is also provided with a touch panel (25).
4. The temperature and humidity test chamber adopting coil dehumidification according to claim 1, wherein: the compressor (11) adopts a piston compressor.
5. The temperature and humidity test chamber adopting coil dehumidification according to claim 1, wherein: the condenser (13) adopts an air-cooled condenser.
6. The temperature and humidity test chamber adopting coil dehumidification according to claim 1, wherein: the throttle valve (14) adopts a thermostatic expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921041700.XU CN211823218U (en) | 2019-07-03 | 2019-07-03 | Humiture test box adopting coil pipe for dehumidification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921041700.XU CN211823218U (en) | 2019-07-03 | 2019-07-03 | Humiture test box adopting coil pipe for dehumidification |
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| Publication Number | Publication Date |
|---|---|
| CN211823218U true CN211823218U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921041700.XU Active CN211823218U (en) | 2019-07-03 | 2019-07-03 | Humiture test box adopting coil pipe for dehumidification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405268A (en) * | 2021-06-16 | 2021-09-17 | 中科美其（天津）科技有限公司 | Refrigerating system based on environmental simulation test box |
-
2019
- 2019-07-03 CN CN201921041700.XU patent/CN211823218U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405268A (en) * | 2021-06-16 | 2021-09-17 | 中科美其（天津）科技有限公司 | Refrigerating system based on environmental simulation test box |
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