CN208805737U - Cooling tower temperature control circuit - Google Patents
Cooling tower temperature control circuit Download PDFInfo
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- CN208805737U CN208805737U CN201821764359.6U CN201821764359U CN208805737U CN 208805737 U CN208805737 U CN 208805737U CN 201821764359 U CN201821764359 U CN 201821764359U CN 208805737 U CN208805737 U CN 208805737U
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- control circuit
- temperature
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Abstract
Cooling tower temperature control circuit described in the utility model, it is proposed a kind of new temperature control design and triggering timing control circuit structure, to which fan motor working condition is adjusted and controlled according to actual water temperature, reaches environmental protection and energy saving, avoids starting the purpose of design with equipment fault caused by too low water temperature extremely.Cooling tower temperature control circuit includes that temperature controller is series at 220V power end, and contactor is connected with the temperature control normally opened contact of temperature controller, contact normally opened contact series connection of the time relay with contactor；After contactor is in parallel with the time relay, connect with the normally-closed contact of the time relay；It connects with water tower fan motor the control contact of contactor.
Description
Technical field
The utility model relates to a kind of temperature control circuits applied to cooling tower, belong to electrical design field.
Background technique
At present in the occasions such as industrial production and trade marketing, generally application has for adjusting using equipment and environment temperature
The cooling tower of degree, to realize that forming heat with medium convection current by water circulation exchanges.
The water temperature of cooling water is lower in autumn and winter, circulation line, and production can be met by free convection and is used
Cooling demand.If fan motor still starts work at this time on time, energy waste is necessarily caused, and after long-time use,
Influence whether the service life of fan motor.
The generation for the problems such as water temperature is too low in pipeline simultaneously, also easily leads to pipeline partial freezing, fan motor exception starting.
In view of this, special propose present patent application.
Utility model content
Cooling tower temperature control circuit described in the utility model is to solve the above-mentioned problems of the prior art and propose one
The new temperature control design of kind and triggering timing control circuit structure, to which fan motor work shape is adjusted and controlled according to actual water temperature
State reaches environmental protection and energy saving, avoids starting the purpose of design with equipment fault caused by too low water temperature extremely.
To achieve the above object, the cooling tower temperature control circuit includes:
Temperature controller is series at 220V power end, and contactor is connected with the temperature control normally opened contact of temperature controller, the time relay with
The contact normally opened contact of contactor is connected；
After contactor is in parallel with the time relay, connect with the normally-closed contact of the time relay；
It connects with water tower fan motor the control contact of contactor.
Basic design scheme as above, by temperature controller setting for monitoring water temperature, adjusting and controlling fan motor work
Critical value after monitoring that the water temperature in water tower pipeline reaches critical value, then connects temperature control circuit by contactor and is closed wind
Fan the circuit of motor, the final purpose for realizing control fan motor starting state.
And the time relay in parallel with contactor is set in temperature control circuit, it can be used for setting and controlling fan motor work
Make period and time, that is, realize automatic starting and shut down, achievees the purpose that environmental protection and energy saving.
Further refinement is with improvement project, to improve water temperature detection accuracy and sensitivity, in 220V power end, temperature
Control device can connect a thermocouple.
To sum up content, the application cooling tower temperature control circuit have the advantage, that
1, circuit control part structure is relatively simple, the component kind and negligible amounts being related to, and use cost is lower.
2, in autumn and winter, the adjusting and control for being directed to fan motor working condition can be realized according to actual water temperature, it can
Meet production and use demand, in turn avoids energy waste.
3, fan motor is in effectively management with during adjustment, will not ineffectually start work, be conducive to extend wind
Fan the service life of motor.
4, it avoids that water temperature in pipeline is too low and partial freezing, prevents the generation of abnormal starting problem.
Detailed description of the invention
Fig. 1 is temperature control circuit schematic diagram；
Fig. 2 is fan motor circuit diagram；
As depicted in figs. 1 and 2, temperature controller K, temperature control normally opened contact K-1, thermocouple TC, contactor KM contact normally opened contact
KM-1 controls contact KM-2, time relay sj, normally-closed contact SJ-1, fan motor M.
Specific embodiment
Embodiment 1, is with reference to the accompanying drawing described in further detail the utility model.
The cooling tower temperature control circuit, primary structure scheme is:
In 220V power end, temperature controller K is series at thermocouple TC；
Contactor KM connects with the temperature control normally opened contact K-1 of temperature controller K, and time relay sj and the contact of contactor KM are normal
Open contact KM-1 series connection；
After contactor KM is in parallel with time relay sj, connect with the normally-closed contact SJ-1 of time relay sj；
The control contact KM-2 of contactor KM connects with water tower fan motor M.
Specific use process is, when thermocouple TC monitors that setting of the water temperature in water tower pipeline higher than temperature controller K is faced
When dividing value, the coiler part of temperature control normally opened contact K-1 closure, contactor KM is powered, then contact KM-2 closure is controlled, to be powered
Starting fan motor M starts to carry out cooling work；Meanwhile time relay sj is powered, and starts timing.
After the starting time of fan motor M reaching setting time value, normally-closed contact SJ-1 is disconnected, then contactor KM is disconnected
Electricity, control contact KM-2 are disconnected, and final fan motor M stops working.
As described above, similar technical solution can be derived in conjunction with the plan content that attached drawing and description provide.But it is all
Without departing from the plan content of the structure of the utility model, the interest field of technical solutions of the utility model is still fallen within.
Claims (2)
1. a kind of cooling tower temperature control circuit, it is characterised in that: temperature controller (K) is series at 220V power end, contactor (KM) with
The temperature control normally opened contact (K-1) of temperature controller (K) is connected, the contact normally opened contact (KM- of the time relay (SJ) and contactor (KM)
1) it connects；
After contactor (KM) is in parallel with the time relay (SJ), connect with the normally-closed contact (SJ-1) of the time relay (SJ)；
It connects with water tower fan motor (M) the control contact (KM-2) of contactor (KM).
2. cooling tower temperature control circuit according to claim 1, it is characterised in that: in 220V power end, temperature controller (K) string
Join thermocouple (TC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821764359.6U CN208805737U (en) | 2018-10-30 | 2018-10-30 | Cooling tower temperature control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821764359.6U CN208805737U (en) | 2018-10-30 | 2018-10-30 | Cooling tower temperature control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208805737U true CN208805737U (en) | 2019-04-30 |
Family
ID=66239378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821764359.6U Active CN208805737U (en) | 2018-10-30 | 2018-10-30 | Cooling tower temperature control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208805737U (en) |
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2018
- 2018-10-30 CN CN201821764359.6U patent/CN208805737U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 266000 No. 89 Luohe Road, Huangdao District, Qingdao, Shandong Patentee after: QINGDAO U-PIPE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 266000 No. 79 Yichang Road, Shibei District, Qingdao, Shandong Patentee before: QINGDAO U-PIPE EPT Co.,Ltd. |
|
| CP03 | Change of name, title or address |