CN203893337U - CIT high-precision constant-temperature and constant-humidity system - Google Patents
CIT high-precision constant-temperature and constant-humidity system Download PDFInfo
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- CN203893337U CN203893337U CN201420170009.2U CN201420170009U CN203893337U CN 203893337 U CN203893337 U CN 203893337U CN 201420170009 U CN201420170009 U CN 201420170009U CN 203893337 U CN203893337 U CN 203893337U
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Abstract
The utility model discloses a CIT high-precision constant-temperature and constant-humidity system used for keeping the condition inside a constant-temperature and constant-humidity chamber to be constant in both temperature and humidity. The system comprises an air-cooled refrigerating unit, a water tank, a constant-temperature water-bath heating device, a surface cooler unit, a radiating fin unit, a humidifier and a humiture sensor. The air-cooled refrigerating unit, the water tank and the constant-temperature water-bath heating device are arranged outside the constant-temperature and constant-humidity chamber. The surface cooler unit, the radiating fin unit, the humidifier and the humiture sensor are arranged inside the constant-temperature and constant-humidity chamber. The outlet of the air-cooled refrigerating unit is communicated with the interior of the water tank. The water outlet of the water tank, the surface cooler unit, and the water inlet of the water tank are sequentially communicated with each other to form a first circulation loop. The water outlet of the constant-temperature water-bath heating device, the radiating fin unit, and the water inlet of the constant-temperature water-bath heating device are sequentially communicated with each other to form a second circulation loop. A predetermined temperature interval and a predetermined humidity for the constant-temperature and constant-humidity chamber can be inputted through a PLC. The PLC is in communication connection with the air-cooled refrigerating unit, the constant-temperature water-bath heating device, the humidifier and the humiture sensor. The CIT high-precision constant-temperature and constant-humidity system disclosed by the utility model is high in temperature and humidity control accuracy, and high in degree of automation.
Description
Technical field
The utility model relates to air-conditioning technical field, relates in particular to a kind of CIT high precision thermostatic constant wet system.
Background technology
Current, along with scientific and technical develop rapidly, people are also more and more higher to the requirement of constant temperature and humidity system.Be mainly manifested in the fields such as quality inspection, military affairs, space flight, aviation, electronics, biomedicine.If temperature, humidity is deviation slightly, easily cause bacterium, fungal drug death or the variation of indoor cultivation, affect experiment effect.Meanwhile, high-precision constant temperature and humidity system, can make staff feel more comfortable, increases work efficiency effectively.Existing constant temperature and humidity system is lower in Temperature and Humidity Control precision.
Utility model content
In order to solve the technical problem existing in background technology, the utility model proposes a kind of CIT high precision thermostatic constant wet system, its Temperature and Humidity Control precision is high, and operation automaticity is high.
A kind of CIT high precision thermostatic constant wet system the utility model proposes, for keeping the constant-temperature constant-humidity environment of thermostatic constant wet chamber, comprise air cooling chiller group, water tank, surface cooler group, water bath with thermostatic control heater, groups of fins, the first delivery pump, the second delivery pump, humidifier, Temperature Humidity Sensor, PLC controller; Air cooling chiller group, water tank, water bath with thermostatic control heater, the first delivery pump, the second delivery pump are positioned at the outside of thermostatic constant wet chamber, it is indoor that surface cooler group, groups of fins, humidifier and Temperature Humidity Sensor are arranged on constant temperature and humidity, the outlet of air cooling chiller group and water tank internal communication, water outlet of water tank, the first delivery pump, surface cooler group, water tank inlet are communicated with formation the first closed circuit successively, and water bath with thermostatic control heater delivery port, the second delivery pump, groups of fins, water bath with thermostatic control heater water inlet are communicated with formation the second closed circuit successively; In PLC controller, be provided with for inputting the human-computer interaction interface of the interval and predetermined moisture of the predetermined temperature of thermostatic constant wet chamber, PLC controller and air cooling chiller group, water bath with thermostatic control heater, humidifier, Temperature Humidity Sensor communication are connected to control the duty of air cooling chiller group, water bath with thermostatic control heater, humidifier.
Preferably, to differ be 2 ℃-4 ℃ for the minimum of a value in predetermined temperature interval and maximum.
Preferably, humidifier is comprised of some ultrasonic humidifying sheets.
Preferably, the ultrasonic humidifying sheet that comprises multi-disc independent operating in humidifier.
Preferably, groups of fins comprises the fin of one or more pieces independent operatings.
Preferably, groups of fins comprises multi-disc fin, and the heat exchange efficiency of each fin is multiplication relation from small to large.
Preferably, surface cooler group comprises the surface cooler of one or more independent operatings.
Preferably, surface cooler group comprises a plurality of surface coolers, and the heat exchange efficiency of each surface cooler is multiplication relation from small to large.
In the utility model, air cooling chiller group, water tank, water bath with thermostatic control heater are installed on to the outside of thermostatic constant wet chamber, can reduce the indoor impact on thermostatic constant wet chamber, improve the precision that keeps constant-temperature constant-humidity environment; The outlet of air cooling chiller group and water tank internal communication, water outlet of water tank, the first delivery pump, surface cooler group, water tank inlet are communicated with formation the first closed circuit successively, and the work of air cooling chiller group can be lowered the temperature to thermostatic constant wet chamber by the first closed circuit; Water bath with thermostatic control heater delivery port, the second delivery pump, groups of fins, water bath with thermostatic control heater water inlet are communicated with formation the second closed circuit successively, and the work of water bath with thermostatic control heater can heat up to thermostatic constant wet chamber by the second closed circuit; According to actual requirement, by the human-computer interaction interface of PLC controller, set predetermined temperature interval and the predetermined moisture of thermostatic constant wet chamber, Temperature Humidity Sensor detects real time temperature and the real-time humidity of thermostatic constant wet chamber in real time, and real time temperature and real-time humidity are sent to PLC controller, PLC controller judges whether real time temperature falls in predetermined temperature interval, if real time temperature is higher than in predetermined temperature interval during maximum, PLC controller is controlled the work of air cooling chiller group, by the first closed circuit, reduces the indoor temperature of constant temperature and humidity; If real time temperature is lower than in predetermined temperature interval during minimum of a value, PLC controller is controlled the work of water bath with thermostatic control heater, by the second closed circuit, improves the indoor temperature of constant temperature and humidity; If real time temperature falls into predetermined temperature interval, without starting air cooling chiller group and the work of water bath with thermostatic control heater; PLC controller judges that whether real-time humidity is lower than predetermined moisture, if when humidity is lower than predetermined moisture in real time, PLC controller is controlled humidifier work, improves the indoor humidity of constant temperature and humidity; Above-mentioned whole temperature and humidity regulation process automation degree is high and regulate accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of CIT high precision thermostatic constant wet system that the utility model proposes.
The specific embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of CIT high precision thermostatic constant wet system that the utility model proposes.
With reference to Fig. 1, a kind of CIT high precision thermostatic constant wet system the utility model proposes, for keeping the constant-temperature constant-humidity environment of thermostatic constant wet chamber 6, comprise air cooling chiller group 1, water tank 2, surface cooler group 7, water bath with thermostatic control heater 4, groups of fins 8, the first delivery pump 3, the second delivery pump 5, humidifier 10, Temperature Humidity Sensor 9, PLC controller, air cooling chiller group 1, water tank 2, water bath with thermostatic control heater 4, the first delivery pump 3, the second delivery pump 5 is positioned at the outside of thermostatic constant wet chamber 6, surface cooler group 7, groups of fins 8, humidifier 10 and Temperature Humidity Sensor 9 are arranged in thermostatic constant wet chamber 6, the outlet of air cooling chiller group 1 and water tank 2 internal communication, water tank 2 delivery ports, the first delivery pump 3, surface cooler group 7, water tank 2 water inlets are communicated with formation the first closed circuit successively, water bath with thermostatic control heater 4 delivery ports, the second delivery pump 5, groups of fins 8, water bath with thermostatic control heater 4 water inlets are communicated with formation the second closed circuit successively, in PLC controller, be provided with human-computer interaction interface, and can input by above-mentioned human-computer interaction interface predetermined temperature interval and the predetermined moisture of thermostatic constant wet chamber 6, PLC controller is connected with air cooling chiller group 1, water bath with thermostatic control heater 4, humidifier 10, Temperature Humidity Sensor 9 communications, real time temperature in Temperature Humidity Sensor 9 Real-time Collection thermostatic constant wet chamber 6 and in real time humidity information, and above-mentioned real time temperature and real-time humidity information are sent to PLC controller, PLC controller compares real time temperature and predetermined temperature, when real time temperature higher than predetermined temperature interval in during maximum, PLC controller is controlled 1 work of air cooling chiller group, by the first closed circuit, reduces the interior temperature of thermostatic constant wet chamber 6, when real time temperature lower than predetermined temperature interval in during minimum of a value, PLC controller is controlled 4 work of water bath with thermostatic control heater, by the second closed circuit, improves the interior temperature of thermostatic constant wet chamber 6, PLC controls real-time humidity and predetermined moisture is compared, and when real-time humidity is during lower than predetermined moisture, PLC controller is controlled humidifier 10 work, the interior humidity of raising thermostatic constant wet chamber 6.
In technique scheme, air cooling chiller group 1, water tank 2, water bath with thermostatic control heater 4 are installed on to the outside of thermostatic constant wet chamber 6, can reduce the indoor impact on thermostatic constant wet chamber 6, improve the precision that keeps constant-temperature constant-humidity environment; The outlet of air cooling chiller group 1 and water tank 2 internal communication, water tank 2 delivery ports, the first delivery pump 3, surface cooler group 7, water tank 2 water inlets are communicated with formation the first closed circuit successively, and 1 work of air cooling chiller group can be lowered the temperature to thermostatic constant wet chamber 6 by the first closed circuit; Water bath with thermostatic control heater 4 delivery ports, the second delivery pump 5, groups of fins 8, water bath with thermostatic control heater 4 water inlets are communicated with formation the second closed circuit successively, and 4 work of water bath with thermostatic control heater can heat up to thermostatic constant wet chamber 6 by the second closed circuit; According to actual requirement, by the human-computer interaction interface of PLC controller, set predetermined temperature interval and the predetermined moisture of thermostatic constant wet chamber 6, Temperature Humidity Sensor 9 detects real time temperature and the real-time humidity of thermostatic constant wet chamber 6 in real time, and real time temperature and real-time humidity are sent to PLC controller, PLC controller judges whether real time temperature falls in predetermined temperature interval, if real time temperature is higher than in predetermined temperature interval during maximum, PLC controller is controlled 1 work of air cooling chiller group, by the first closed circuit, reduces the interior temperature of thermostatic constant wet chamber 6; If real time temperature is lower than in predetermined temperature interval during minimum of a value, PLC controller is controlled 4 work of water bath with thermostatic control heater, by the second closed circuit, improves the interior temperature of thermostatic constant wet chamber 6; If real time temperature falls into predetermined temperature interval, without starting air cooling chiller group 1 and 4 work of water bath with thermostatic control heater; PLC controller judges that whether real-time humidity is lower than predetermined moisture, if when humidity is lower than predetermined moisture in real time, PLC controller is controlled humidifier 10 work, improves the interior humidity of thermostatic constant wet chamber 6; Above-mentioned whole temperature and humidity regulation process automation degree is high and regulate accurate.
In specific design process, it is 2 ℃-4 ℃ that the minimum of a value in predetermined temperature interval and maximum differ, and sets in such a way predetermined temperature interval and can and prevent from temperature requirements obtaining good balance between air cooling chiller group 1, water bath with thermostatic control heater 4 frequent startings.
In specific design process, in humidifier 10, comprise the ultrasonic humidifying sheet of multi-disc independent operating.
Under above-mentioned improvement design, can carry out humidification operation by precision, improve the accuracy of humidity regulation.
In specific design process, groups of fins 8 comprises multi-disc fin, and the heat exchange efficiency of each fin is multiplication relation from small to large.
Under above-mentioned improvement design, can according to thermostatic constant wet chamber's 6 wishs, promote the size of temperature, selectively adopt the fin of different size and quantity to dispel the heat, thereby improve efficiency and the precision heating up.
In specific design process, surface cooler group 7 comprises a plurality of surface coolers, and the heat exchange efficiency of each surface cooler is multiplication relation from small to large.
Under above-mentioned improvement design, can according to thermostatic constant wet chamber's 6 wishs, reduce the size of temperature, selectively adopt the surface cooler of different size and quantity to freeze, thereby improve efficiency and the precision of cooling.
The above; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection domain of the present utility model.
Claims (8)
1. a CIT high precision thermostatic constant wet system, be used for keeping the constant-temperature constant-humidity environment of thermostatic constant wet chamber (6), it is characterized in that, comprise air cooling chiller group (1), water tank (2), surface cooler group (7), water bath with thermostatic control heater (4), groups of fins (8), the first delivery pump (3), the second delivery pump (5), humidifier (10), Temperature Humidity Sensor (9), PLC controller, air cooling chiller group (1), water tank (2), water bath with thermostatic control heater (4), the first delivery pump (3), the second delivery pump (5) is positioned at the outside of thermostatic constant wet chamber (6), surface cooler group (7), groups of fins (8), humidifier (10) and Temperature Humidity Sensor (9) are arranged in thermostatic constant wet chamber (6), the outlet of air cooling chiller group (1) and water tank (2) internal communication, water tank (2) delivery port, the first delivery pump (3), surface cooler group (7), water tank (2) water inlet is communicated with formation the first closed circuit successively, water bath with thermostatic control heater (4) delivery port, the second delivery pump (5), groups of fins (8), water bath with thermostatic control heater (4) water inlet is communicated with formation the second closed circuit successively, in PLC controller, be provided with for inputting the human-computer interaction interface of the interval and predetermined moisture of the predetermined temperature of thermostatic constant wet chamber (6), PLC controller and air cooling chiller group (1), water bath with thermostatic control heater (4), humidifier (10), Temperature Humidity Sensor (9) communication are connected to control the duty of air cooling chiller group (1), water bath with thermostatic control heater (4), humidifier (10).
2. CIT high precision thermostatic constant wet system according to claim 1, is characterized in that, it is 2 ℃-4 ℃ that the minimum of a value in predetermined temperature interval and maximum differ.
3. CIT high precision thermostatic constant wet system according to claim 1, is characterized in that, humidifier (10) is comprised of some ultrasonic humidifying sheets.
4. CIT high precision thermostatic constant wet system according to claim 3, is characterized in that, comprises the ultrasonic humidifying sheet of multi-disc independent operating in humidifier (10).
5. CIT high precision thermostatic constant wet system according to claim 1, is characterized in that, groups of fins (8) comprises the fin of one or more pieces independent operatings.
6. CIT high precision thermostatic constant wet system according to claim 5, is characterized in that, groups of fins (8) comprises multi-disc fin, and the heat exchange efficiency of each fin is multiplication relation from small to large.
7. CIT high precision thermostatic constant wet system according to claim 1, is characterized in that, surface cooler group (7) comprises the surface cooler of one or more independent operatings.
8. CIT high precision thermostatic constant wet system according to claim 7, is characterized in that, surface cooler group (7) comprises a plurality of surface coolers, and the heat exchange efficiency of each surface cooler is multiplication relation from small to large.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170009.2U CN203893337U (en) | 2014-04-09 | 2014-04-09 | CIT high-precision constant-temperature and constant-humidity system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170009.2U CN203893337U (en) | 2014-04-09 | 2014-04-09 | CIT high-precision constant-temperature and constant-humidity system |
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|---|---|
| CN203893337U true CN203893337U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420170009.2U Expired - Fee Related CN203893337U (en) | 2014-04-09 | 2014-04-09 | CIT high-precision constant-temperature and constant-humidity system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262163A (en) * | 2017-06-09 | 2017-10-20 | 中纺标(深圳)检测有限公司 | Climatic chamber gas exchange systems |
-
2014
- 2014-04-09 CN CN201420170009.2U patent/CN203893337U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262163A (en) * | 2017-06-09 | 2017-10-20 | 中纺标(深圳)检测有限公司 | Climatic chamber gas exchange systems |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150409 |
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| EXPY | Termination of patent right or utility model |