CN206369294U - Clean thermostatic chamber combines temperature-controlling system - Google Patents
Clean thermostatic chamber combines temperature-controlling system Download PDFInfo
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- CN206369294U CN206369294U CN201621468343.1U CN201621468343U CN206369294U CN 206369294 U CN206369294 U CN 206369294U CN 201621468343 U CN201621468343 U CN 201621468343U CN 206369294 U CN206369294 U CN 206369294U
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- thermostatic chamber
- temperature
- air inlet
- clean
- clean thermostatic
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Abstract
The utility model discloses a kind of clean thermostatic chamber combination temperature-controlling system, including with entering, the clean thermostatic chamber of return air inlet, be provided with indoor temperature transmitter in clean thermostatic chamber；The air inlet of clean thermostatic chamber is connected by ajutage with temperature regulating device air outlet；Clean thermostatic chamber return air inlet is connected by backwind tube with temperature regulating device air inlet；Temperature regulating device includes electric heater unit, evaporator and blower fan；The liquid inlet and outlet of evaporator is connected by feed flow copper pipe and time liquid copper pipe with the liquid outlet and inlet of refrigeration compressor respectively；The signal output part of indoor temperature transmitter is electrically connected with PLC signal input part, and PLC signal output part is connected with the signal input part control of blower fan, electric heater unit and refrigeration compressor respectively.The utility model is simple in construction, temperature control is accurate and use cost is low.Freezing water-flow circuit is substituted with refrigeration compressor, is reduced using equipment, cost of investment can be reduced, while reducing operation and maintenance cost.
Description
Technical field
The utility model is related to temperature control field, and temperature-controlling system is combined more particularly, to a kind of clean thermostatic chamber.
Background technology
The product produced using biological cell culture, it is necessary in the thermostatic chamber for being placed on 34 ± 1 DEG C or 37 ± 1 DEG C.If permanent
Greenhouse temperature is too high, and biological cell can be caused dead, if constant temperature room temperature is too low, cell growth can be caused bad and do not given birth to
Long, both of which will directly affect the yield of production product.Clean thermostatic chamber air-conditioning system is generally using electrical heating to being
System carries out heat temperature raising, and when temperature reaches setting value, electrical heating stops.If during clean thermostatic chamber overtemperature, Open valve is freezing
Water is delivered to surface cooler（Water lines are connected to form circulation loop, open the circulation pump and water with circulating pump, surface cooler, water chiller
Chilled water is dropped to design temperature by cold group）, cold is sent to by blower fan air-supply by thermostatic chamber and cooled, is set when temperature is dropped to
Freezing penstock is closed when constant temperature is spent, so circulates to maintain the temperature constant state of clean thermostatic chamber.When entering winter, by environment temperature
The influence of degree, water chiller is difficult to start, and the temperature of chilled water is difficult to reach the temperature needed for cooling, therefore thermostatic chamber control essence
Degree is not high, it is difficult to maintain the constant temperature effect of thermostatic chamber；Meanwhile, the operation of water chiller and maintenance cost are also higher.
The content of the invention
The utility model purpose is to provide a kind of energy accurate temperature controlling and the low clean thermostatic chamber combination temperature-controlling system of cost.
To achieve the above object, the utility model can take following technical proposals：
Clean thermostatic chamber combination temperature-controlling system described in the utility model, including with entering, the clean thermostatic chamber of return air inlet,
Indoor temperature transmitter is provided with the clean thermostatic chamber；The air inlet of the clean thermostatic chamber passes through ajutage and temperature control
The air outlet of device is connected；The return air inlet of the clean thermostatic chamber passes through indoor return air passage and backwind tube and temperature regulating device
Air inlet is connected；The temperature regulating device includes electric heater unit, evaporator and blower fan；The liquid inlet and outlet of the evaporator point
It is not connected by feed flow copper pipe and time liquid copper pipe with the liquid outlet and inlet of refrigeration compressor；The indoor temperature transmitter
Signal output part electrically connected with PLC signal input part, the signal output part of the PLC respectively with the blower fan, electrical heating
The signal input part control connection of device and refrigeration compressor.
The indoor temperature transmitter is positioned close in the indoor return air passage at return air inlet position.
Leaving air temp sensor, the leaving air temp sensor are provided with the ajutage mouth of pipe of the temperature control device
Signal output part electrically connected with the signal input part of the PLC.
The utility model advantage is that simple in construction, temperature control is accurate and use cost is low.Substituted with refrigeration compressor
Water-flow circuit is freezed, is reduced using equipment, cost of investment can be reduced, while reducing operation and maintenance cost；Refrigerant compression
Machine starts not to be influenceed by ambient temperature, substantially increases the control accuracy of clean constant temperature room temperature.It is positioned close to return air
Indoor temperature transmitter at mouth position can be monitored to indoor temperature, and carry out auto-control to it by PLC,
And being positioned close to the leaving air temp sensor at the temperature control device air-supply mouth of pipe can be carried out in real time to the wind-warm syndrome that temperature control device is sent out
Monitoring, it is ensured that the temperature of clean thermostatic chamber meets the requirement of biological cell culture production.
Brief description of the drawings
Fig. 1 is pipeline connection diagram of the present utility model.
Fig. 2 is schematic block circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, 2, clean thermostatic chamber combination temperature-controlling system described in the utility model, including with entering, return air inlet
Clean thermostatic chamber 1, be provided with indoor temperature transmitter 2 in clean thermostatic chamber 1）；The air inlet of clean thermostatic chamber 1 is by sending
Airduct 3 is connected with the air outlet of temperature regulating device 4；The return air inlet of clean thermostatic chamber 1 passes through indoor return air passage 5 and backwind tube 6
It is connected with the air inlet of temperature regulating device 4；Temperature regulating device 4 includes electric heater unit 7, evaporator 8 and blower fan 9；Evaporator 8
Liquid inlet and outlet is connected by feed flow copper pipe 10 and time liquid copper pipe 11 with the liquid outlet and inlet of refrigeration compressor 12 respectively；
The signal output part of indoor temperature transmitter 2 is electrically connected with PLC signal input part, PLC signal output part respectively with blower fan
9th, the signal input part control connection of electric heater unit 7 and refrigeration compressor 12.For the temperature in the clean thermostatic chamber 1 of accurate measurement
Degree, indoor temperature transmitter 2 is positioned close in the indoor return air passage 5 at return air inlet position.For more directly to from control
The wind pushing temperature that warm device 4 is sent out is monitored, and leaving air temp sensing is being provided with the mouth of pipe of ajutage 3 of temperature control device
Device 13, the signal output part of the leaving air temp sensor 13 is electrically connected with the signal input part of the PLC.
During present apparatus normal work, electric heater unit 7, which starts, provides thermal source, and blower fan 9 operates as clean thermostatic chamber 1 and conveys heat
Air, when indoor temperature transmitter 2 is detected temperature reaches setting value in clean thermostatic chamber 1 when, PLC control electric heater unit 7
It is stopped.If the clean temperature of thermostatic chamber 1 exceedes desired temperature, PLC controls automatically turn on refrigeration compressor 12, to evaporation
Device 8 provides low-temperature receiver, and clean thermostatic chamber 1 is cooled, when indoor temperature transmitter 2, which detects temperature, reaches setting value, stopped automatically
Only refrigeration compressor 12.So circulate to maintain the temperature of clean thermostatic chamber 1, the unlatching of refrigeration compressor 12 is not by external environment
Temperature influences, and starts stop at any time.Meanwhile, the leaving air temp sensor 13 set at the mouth of pipe of ajutage 3 of temperature control device
The air themperature that directly temperature regulating device 4 can be sent out is included on PLC display screen, leaving air temp is monitored in real time, one
There are abnormal conditions in denier, can reduce fault coverage, reduces downtime.
Claims (3)
1. a kind of clean thermostatic chamber combination temperature-controlling system, including with entering, the clean thermostatic chamber of return air inlet（1）, in the cleaning
Thermostatic chamber（1）Inside it is provided with indoor temperature transmitter（2）；The clean thermostatic chamber（1）Air inlet pass through ajutage（3）With control
Warm device（4）Air outlet be connected；The clean thermostatic chamber（1）Return air inlet pass through indoor return air passage（5）And backwind tube
（6）With temperature regulating device（4）Air inlet be connected；The temperature regulating device（4）Including electric heater unit（7）, evaporator（8）And wind
Machine（9）；It is characterized in that：The evaporator（8）Liquid inlet and outlet pass through feed flow copper pipe respectively（10）With time liquid copper pipe（11）With
Refrigeration compressor（12）Liquid outlet be connected with inlet；The indoor temperature transmitter（2）Signal output part and PLC
Signal input part is electrically connected, the signal output part of the PLC respectively with the blower fan（9）, electric heater unit（7）And refrigerant compression
Machine（12）Signal input part control connection.
2. clean thermostatic chamber combination temperature-controlling system according to claim 1, it is characterised in that：The indoor temperature transmitter
（2）It is positioned close to the indoor return air passage at return air inlet position（5）It is interior.
3. clean thermostatic chamber combination temperature-controlling system according to claim 1, it is characterised in that：Close to the temperature regulating device
Ajutage（3）Leaving air temp sensor is provided with the mouth of pipe（13）, the leaving air temp sensor（13）Signal output part with
The signal input part electrical connection of the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621468343.1U CN206369294U (en) | 2016-12-29 | 2016-12-29 | Clean thermostatic chamber combines temperature-controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621468343.1U CN206369294U (en) | 2016-12-29 | 2016-12-29 | Clean thermostatic chamber combines temperature-controlling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206369294U true CN206369294U (en) | 2017-08-01 |
Family
ID=59391621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621468343.1U Active CN206369294U (en) | 2016-12-29 | 2016-12-29 | Clean thermostatic chamber combines temperature-controlling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206369294U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729550A (en) * | 2018-05-30 | 2018-11-02 | 杭州之江开关股份有限公司 | Simple assembling formula thermostatic chamber, application method and its control method |
| CN109579371A (en) * | 2018-12-14 | 2019-04-05 | 贵州省烟草公司遵义市公司 | A kind of novel high-precision thermal control case |
-
2016
- 2016-12-29 CN CN201621468343.1U patent/CN206369294U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729550A (en) * | 2018-05-30 | 2018-11-02 | 杭州之江开关股份有限公司 | Simple assembling formula thermostatic chamber, application method and its control method |
| CN109579371A (en) * | 2018-12-14 | 2019-04-05 | 贵州省烟草公司遵义市公司 | A kind of novel high-precision thermal control case |
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