CN201554681U - Automatic control system for on and off of cooling tower fan - Google Patents
Automatic control system for on and off of cooling tower fan Download PDFInfo
- Publication number
- CN201554681U CN201554681U CN2009200495507U CN200920049550U CN201554681U CN 201554681 U CN201554681 U CN 201554681U CN 2009200495507 U CN2009200495507 U CN 2009200495507U CN 200920049550 U CN200920049550 U CN 200920049550U CN 201554681 U CN201554681 U CN 201554681U
- Authority
- CN
- China
- Prior art keywords
- terminals
- cooling tower
- terminal
- automatic control
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Abstract
The utility model relates to the technical field of control systems of cooling towers, in particular to an automatic control system for on and off of a cooling tower fan. The automatic control is provided with a temperature controller and a three-wire temperature sensor, wherein the temperature controller is provided with 16 terminals, the three-wire temperature sensor is arranged in a cooling tower, the second terminal and the third terminal are connected to a power source, a single-chip switch is arranged on a connecting circuit of the second terminal, the seventh and eighth terminals of the temperature controller are normally closed output control terminals, the seventh terminal is connected to the lower end of the single chip switch, the eighth terminal is connected to a connecting circuit of the third terminal via an alternating current contactor, the fourteenth, fifteenth and sixteenth terminals of the temperature controller are respectively connected to three wires of the temperature controller, and a main contact of the alternating current contact is connected to the cooling tower fan. After a set of automatic temperature device for controlling on and off of the fan is additionally arranged on the automatic control system, the fan can work 15 hours each day so as to be capable of reducing consumption and saving energy, thereby reducing cost and prolonging service life of equipment.
Description
Technical field
The utility model relates to the control system technical field of cooling tower, especially a kind of automatic control system of blower fan of cooling tower start and stop.
Background technique
At present, the use of cooling tower is very extensive, and the application of its blower fan is also more and more.Existing blower fan of cooling tower need carry out the operation that do not stop in 24 hours, because for water manufacturing technique requirent in the cooling tower is not very strict, so just increase a large amount of wastes of the power and water energy greatly, thereby increased production cost, reduce the working life of equipment.
The model utility content
The technical problems to be solved in the utility model is: for shortcoming and the deficiency that solves above-mentioned existence, provide a kind of automatic control system of blower fan of cooling tower start and stop, prolonged the life-span of using.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of automatic control system of blower fan of cooling tower start and stop, temperature controlling instrument and a three-way temperature transducer that is arranged in the cooling tower with 16 terminals, No. 2 of temperature controlling instrument and No. 3 terminals are connected to a power supply, the linking route of No. 2 terminals is provided with a single-chip switching, No. 7 of temperature controlling instrument and No. 8 terminals are normally closed output control terminal, No. 7 terminals are connected to the lower end of single-chip switching, No. 8 terminals connect by an A.C. contactor and are connected on No. 3 terminal linking routes, No. 14 of temperature controlling instrument, No. 15 and No. 16 terminals are connected respectively on temperature transducer three-way, and the main contact of A.C. contactor connects blower fan of cooling tower.When coolant-temperature gage was higher than setting temperature in the cooling tower, No. 7 and No. 8 terminals were in normally off, and blower fan gets electric startup operation; When whose temperature is lower than setting temperature in the cooling tower, No. 7 and No. 8 terminals disconnections, the blower fan outage is out of service.
Further, in order to save power apparatus, power supply is one group of alternating current 220V power supply that draw blower air switch lower end.
The beneficial effects of the utility model are, the automatic control system of blower fan of cooling tower start and stop of the present utility model, owing to install the device that a sleeving temperature is controlled the blower fan start and stop automatically additional, make blower fan every day as long as move 15 hours, than reducing by 9 hours working time 24 hours original every days, can reach the purpose of energy-conservation of consumption reduction, thereby reduce cost, prolong the working life of equipment.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an electrical wiring control graph of the present utility model.
Among the figure 1, temperature controlling instrument, 2, temperature transducer, 3, single-chip switching, 4, A.C. contactor.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The automatic control system of the blower fan of cooling tower start and stop of preferred forms as shown in Figure 1, temperature controlling instrument 1 and a three-way temperature transducer 2 that is arranged in the cooling tower with 16 terminals, No. 2 of temperature controlling instrument 1 and No. 3 terminals are connected to a power supply, the linking route of No. 2 terminals is provided with a single-chip switching 3, No. 7 of temperature controlling instrument 1 and No. 8 terminals are normally closed output control terminal, No. 7 terminals are connected to the lower end of single-chip switching 3, No. 8 terminals connect by an A.C. contactor 4 and are connected on No. 3 terminal linking routes, the main contact of A.C. contactor 4 connects blower fan of cooling tower, No. 14 of temperature controlling instrument 1, No. 15 and No. 16 terminals are connected respectively on three lines of temperature transducer 2, and power supply is one group of alternating current 220V power supply that draw blower air switch lower end.
According to the needs on producing, pre-set used supply water temperature, because technological requirement is not very strict, so the weather weather environment is little to the water temperature influence, because temperature transducer 2 is installed in the cooling tower, Gu the actual value that this probe records feeds back to the input control signal of temperature controlling instrument 1 timely, control the start and stop of blower fan of cooling tower then by temperature controlling instrument 1.
When the utility model is implemented, draw one group of alternating current 220V power supply from original four wire three phase air-break switch lower end and receive the power supply of No. 2, No. 3 terminals of temperature controlling instrument 1 as temperature controlling instrument 1 by single-chip switching 3, temperature transducer 2 is selected the PT100 type for use.When coolant-temperature gage was higher than setting temperature in the cooling tower, No. 7 and No. 8 terminals were in normally off, and blower fan gets electric startup operation; When whose temperature is lower than setting temperature in the cooling tower, No. 7 and No. 8 terminals disconnections, the blower fan outage is out of service.
On whole blower fan of cooling tower, in order to prevent the overload of motor, on the motor primary power supply, add thermorelay, protect motor to be unlikely to transship and burn out; In order to prevent too frequent start-stop of motor, deviate is ± 5 degree about setting one in the parameter of thermometer, set 20 degree now, fan starting when water temperature to 25 is spent so, when water temperature to 15 was spent, blower fan quit work, to such an extent as to can not occur just surpassing setting value just opens, just be lower than the situation that setting value just stops, can have reduced the blower fan start-stop time like this, prolonged the life-span of using.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (2)
1. the automatic control system of blower fan of cooling tower start and stop, it is characterized in that: temperature controlling instrument (1) and a three-way temperature transducer (2) that is arranged in the cooling tower with 16 terminals, No. 2 of temperature controlling instrument (1) and No. 3 terminals are connected to a power supply, the linking route of No. 2 terminals is provided with a single-chip switching (3), No. 7 of temperature controlling instrument (1) and No. 8 terminals are normally closed output control terminal, No. 7 terminals are connected to the lower end of single-chip switching (3), No. 8 terminals connect by an A.C. contactor (4) and are connected on No. 3 terminal linking routes, No. 14 of temperature controlling instrument (1), No. 15 and No. 16 terminals are connected respectively on three lines of temperature transducer (2).
2. the automatic control system of blower fan of cooling tower start and stop according to claim 1 is characterized in that: described power supply is one group of alternating current 220V power supply that draw blower air switch lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200495507U CN201554681U (en) | 2009-09-30 | 2009-09-30 | Automatic control system for on and off of cooling tower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200495507U CN201554681U (en) | 2009-09-30 | 2009-09-30 | Automatic control system for on and off of cooling tower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554681U true CN201554681U (en) | 2010-08-18 |
Family
ID=42614363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200495507U Expired - Fee Related CN201554681U (en) | 2009-09-30 | 2009-09-30 | Automatic control system for on and off of cooling tower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163913A (en) * | 2011-12-19 | 2013-06-19 | 苏州能健电气有限公司 | Heating circuit of wheel shaft box of wind power pitch system |
-
2009
- 2009-09-30 CN CN2009200495507U patent/CN201554681U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163913A (en) * | 2011-12-19 | 2013-06-19 | 苏州能健电气有限公司 | Heating circuit of wheel shaft box of wind power pitch system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101692530A (en) | Exhausting device capable of automatically controlling temperature and humidity in high-voltage room of substation | |
| CN203455655U (en) | Remote LED display screen self-diagnosis control system | |
| CN201523242U (en) | Solar power management controller | |
| CN201554681U (en) | Automatic control system for on and off of cooling tower fan | |
| CN203258794U (en) | Low-standby-power-consumption air conditioner intelligent control system | |
| CN203324854U (en) | Heat tracing cable control system of common enclosure bus | |
| CN107765743A (en) | Power auto-adjustment type switch cubicle temperature and humidity control device based on temperature difference control | |
| CN103149956A (en) | Digital temperature control type air cooler control device for transformer | |
| CN207488864U (en) | Power auto-adjustment type switchgear temperature and humidity control device based on temperature difference control | |
| CN216290739U (en) | Energy-saving heat dissipation controller of high-voltage variable frequency motor | |
| CN207182125U (en) | A kind of transformer air-cooled energy-saving control device | |
| CN201918750U (en) | Electricity-saving management device of power transmission line online monitoring terminal equipment | |
| CN202210226U (en) | Transformer cooling and energy-saving control device | |
| CN201270410Y (en) | Motor protecting controller | |
| CN203133635U (en) | Digital temperature control transformer air cooler control device | |
| CN202120712U (en) | Main transformer forced oil circulation air cooling intelligent control device | |
| CN201795575U (en) | Energy-saving system of central air conditioner | |
| CN201787800U (en) | Freeze-drying cooling water automatic cooling device | |
| CN219435001U (en) | Multi-station timing idle running-in test device for actuating mechanism | |
| CN204759179U (en) | Electric circuit breaker remote monitering system is got to 10kV electric network line induction type | |
| CN101839251B (en) | Automatic-speed-regulation energy-saving control system for shaft hoisting cooling fan | |
| CN219554817U (en) | Single crystal growing furnace power cabinet voltage stabilizing device | |
| CN204331408U (en) | Motor control assembly | |
| CN214752553U (en) | A simulation sand table system for power plant based on NB-IOT | |
| CN201508009U (en) | A substation high-voltage room temperature and humidity automatic control exhaust device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20130930 |