CN206386256U - A kind of cooling water pipe path control system - Google Patents
A kind of cooling water pipe path control system Download PDFInfo
- Publication number
- CN206386256U CN206386256U CN201621300584.5U CN201621300584U CN206386256U CN 206386256 U CN206386256 U CN 206386256U CN 201621300584 U CN201621300584 U CN 201621300584U CN 206386256 U CN206386256 U CN 206386256U
- Authority
- CN
- China
- Prior art keywords
- water pump
- switch
- water
- relay
- controlling switch
- 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
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of cooling water pipe path control system, the cooling water pipeline connects three water pumps simultaneously, it is characterized in that the cooling water control system includes cooling water pipeline pressure sensor, control unit, described control unit receives cooling water pipeline reclaimed water pressure signal, water pressure then controls the first water pump controlling switch respectively less than setting value in cooling water pipeline, second water pump controlling switch and the 3rd water pump controlling switch closure disconnect, first water pump controlling switch, second water pump controlling switch and the 3rd water pump controlling switch closure then control the first water pump relay respectively, second water pump relay, 3rd water pump relay adhesive, and then control the first water pump, second water pump and the 3rd pump working.Therefore the utility model has the advantage of that can play saving energy consumption efficiently against defect present in above-mentioned prior art and deficiency, maintaining is convenient, and fault recognition rate is high, and easy to operate, failure is easily excluded.
Description
Technical field
The utility model is related to rain, sewage pumping station field, specifically says it is machine after a kind of large-scale rain, the operation of sewage pumping station
The cooling water pipe path control system of group.
Background technology
Electric energy serves the vital energy in the construction of country and enterprise, but energy-conservation be again enterprise development must
Right demand, drainage system carries the important step for ensuring that whole city runs well again, so energy-saving and emission-reduction are exactly enterprise's hair
That opens up must be required.
City is expanded in development, and rain that drainage system is born, the working day of quantity of wastewater effluent are increasingly big, and this is just urgent
Need to change conventional idea.Why large-scale rain, sewage pumping station break ground and given birth to one after another, due to the equipment with small pumping station not
Together, the unit operation of large pumping station requires higher, equipment long time running, and this is accomplished by the cooling and cooling of unit, and here
It is desirable that can play for a long time, by monitoring water pressure, the system for playing control water pump starting and stopping.It must also be anticorrosive, knot
Structure is simple, easy-maintaining, the low purpose of cost.
The control of the cooling water system used at present is to use Frequency Converter Control, and frequency converter is to be converted into power frequency supply to appoint
Meaning frequency, a kind of electrical equipment of free voltage AC power, due to region etchant gas residing for equipment, frequency converter often occurs
Failure, causes equipment not run well, and sewage is unable to normal discharge, and is possible to emit excessive, and City's Construction And Development is caused
Certain influence.
Utility model content
The purpose of this utility model is to provide a kind of cooling water pipe path control system, directly can pass through hydraulic pressure with power frequency
Power carrys out automatic or manual, to control the operation of three cooling water pump machines.
To achieve these goals, the technical scheme that the utility model is used is as follows：A kind of cooling water pipeline control system
System, the cooling water pipeline connects three water pumps simultaneously, it is characterised in that the cooling water control system includes
Cooling water pipeline pressure sensor, for detecting cooling water pipeline hydraulic pressure force signal；
Control unit, it is small that described control unit receives water pressure in cooling water pipeline reclaimed water pressure signal, cooling water pipeline
The first water pump controlling switch, the second water pump controlling switch and the 3rd water pump controlling switch closure or disconnected are then controlled respectively in setting value
Open；
Water pump control circuit, the water pump control circuit include change-over switch and be connected with the change-over switch it is manual
Unit and automatic unit, the input of the change-over switch and one end of power supply are connected, and the manual end of the change-over switch is hand
Moving cell is connected, and the automatic end of the change-over switch is connected with automatic unit；
Wherein manual unit includes holding three manual branch roads being connected manually with change-over switch, and first manual branch road includes string
Join the first water pump shutdown switch and the first starting mode of pump switch of connection, the normal open switch and the first water pump of the first water pump relay
Starting switch is in parallel, and first manual branch road is switched with the first water pump relay coil and the first hot melt is connected that to be followed by power supply another
End；Second manual branch road includes the second water pump shutdown switch, the second starting mode of pump switch, the second water pump relay being connected in series
Normal open switch and the second starting mode of pump switch in parallel, the second manual branch road and the second water pump relay coil and second heat
Molten switch connection is followed by the power supply other end；3rd manual branch road includes the 3rd water pump shutdown switch, the 3rd water pump being connected in series
Starting switch, the normal open switch and the 3rd starting mode of pump switch in parallel of the 3rd water pump relay, the 3rd manual branch road and
Three water pump relay coils and the 3rd hot melt switch connection are followed by the power supply other end；
Automatic unit include be connected with change-over switch automatic end the first water pump controlling switch, the second water pump controlling switch and
3rd water pump controlling switch, one end of the first water pump controlling switch is connected with change-over switch automatic end, the other end and the first water pump
Relay coil and the first hot melt switch are connected in series and are followed by the power supply other end；Opened with conversion one end of second water pump controlling switch
Automatic end connection is closed, the other end is connected with the second water pump relay coil and the second hot melt switch and is followed by the power supply other end；3rd
One end of water pump controlling switch is connected with change-over switch automatic end, and the other end is opened with the 3rd water pump relay coil and the 3rd hot melt
Connection, which connects, is followed by the power supply other end；
First water pump relay, the second water pump relay, the 3rd water pump relay control the first water pump, the second water pump respectively
With the 3rd pump working.
According to one embodiment of the present utility model, if described control unit judges in cooling water pipeline that water pressure is less than the
One setting value, then control the first water pump controlling switch, the second water pump controlling switch and the 3rd water pump controlling switch to close；If cold
But water pressure is less than the second setting value in waterpipe, then controls the first water pump controlling switch, the second water pump controlling switch closure, the
Three water pump controlling switches disconnect；If water pressure is less than the 3rd setting value in cooling water pipeline, the first water pump controlling switch is controlled
Closure, the 3rd water pump controlling switch, the second water pump controlling switch disconnect；If water pressure is more than the 3rd setting in cooling water pipeline
Value, then control the first water pump controlling switch, the second water pump controlling switch, the 3rd water pump controlling switch to disconnect；Wherein first setting
Value<Second setting value<3rd setting value.
According to another embodiment of the present utility model, described control unit first determines whether that water pressure is less than in cooling water pipeline
Setting value, then control the first water pump controlling switch to close, and starts the time relay, after setting time is reached, cooling water pipe
Water pressure then controls the second water pump controlling switch to close still less than setting value in road, and is again started up the time relay, is reaching
After setting time, water pressure then controls the 3rd water pump controlling switch closure still less than setting value in cooling water pipeline.
Further, the cooling water control system also includes automatic identification circuit relay, the automatic identification circuit
The automatic end connection of relay and change-over switch, the first normally closed switch and the first water pump of the automatic identification circuit relay after
Normally closed opened with the first starting mode of pump switch in parallel, the second of the automatic identification circuit relay after the normal open switch series connection of electrical equipment
Pass connected with the normal open switch of the second water pump relay after with the second starting mode of pump switch in parallel, the automatic identification circuit relay
3rd normally closed switch of device connected with the normal open switch of the 3rd water pump relay after with the 3rd starting mode of pump switch in parallel.
The utility model omits the frequency converter in cooling water control system, and three are reached by way of judging water pressure
The real-time unlatching control of water pump, plays a part of saving energy consumption.Reduced on circuit using each switch and relay, electrothermal relay
Fault rate on circuit, maintaining is convenient, and fault recognition rate is high, easy to operate, the advantages of failure is easily excluded.Therefore originally
The advantage of invention is that saving energy consumption can be played efficiently against defect present in above-mentioned prior art and deficiency, safeguarded
Easy maintenance, fault recognition rate is high, and easy to operate, failure is easily excluded.
Brief description of the drawings
Fig. 1 is circuit block diagram of the present utility model.
Fig. 2 is the circuit diagram of the embodiment of the utility model one.
Embodiment
The utility model is explained in detail with reference to the accompanying drawings and examples.
A kind of cooling water pipe path control system, the cooling water pipeline connects three water pumps simultaneously, it is characterised in that described
Cooling water control system includes
Cooling water pipeline pressure sensor 1, for detecting cooling water pipeline hydraulic pressure force signal；
Control unit 2, it is small that described control unit receives water pressure in cooling water pipeline reclaimed water pressure signal, cooling water pipeline
The first water pump controlling switch PLC4, the second water pump controlling switch PLC5 and the 3rd water pump controlling switch are then controlled respectively in setting value
PLC6 is closed or disconnected；
Water pump control circuit 3, the water pump control circuit includes change-over switch SA and is connected with the change-over switch SA
Manual unit and automatic unit, one end of the input of the change-over switch and power supply connects, the change-over switch it is manual
End（SA No. 2 pin）Connected for manual unit, the automatic end of the change-over switch（SA No. 6 pin）It is connected with automatic unit；
Wherein manual unit includes holding three manual branch roads being connected manually with change-over switch, and first manual branch road includes string
Join the first water pump shutdown switch 2SB and the first starting mode of pump switch 1SB, the normal open switch KM1- of the first water pump relay of connection
1 is in parallel with the first starting mode of pump switch 1SB, and first manual branch road and the hot melts of the first water pump relay coil KM1 and first are switched
1RJ connections are followed by the power supply other end；Second manual branch road includes the second water pump shutdown switch 4SB, the second water pump being connected in series
Starting switch 3SB, the normal open switch KM2-1 of the second water pump relay is in parallel with the second starting mode of pump switch 3SB, the second-hand
Dynamic branch road is connected with the hot melt switches of the second water pump relay coil KM2 and second 2RJ and is followed by the power supply other end；3rd manual branch road
Including the 3rd water pump shutdown switch 6SB, the 3rd starting mode of pump switch 5SB being connected in series, the 3rd the normally opened of water pump relay opens
Closing KM3-1 and the 3rd starting mode of pump, to switch 5SB in parallel, the 3rd manual branch road and the 3rd water pump relay coil KM3 and the
Three hot melt switch 3RJ connections are followed by the power supply other end；
The first water pump controlling switch PLC4, the second water pump that automatic unit includes being connected with change-over switch automatic end control to open
PLC5 and the 3rd water pump controlling switch PLC6 is closed, the first water pump controlling switch PLC4 one end is connected with change-over switch automatic end,
The other end is connected with the hot melt switches of the first water pump relay coil KM1 and first 1RJ and is followed by the power supply other end；Second water pump is controlled
One end of switch is connected with change-over switch automatic end, the other end and the hot melt switches of the second water pump relay coil KM2 and second 2RJ
Connection is followed by the power supply other end；One end of 3rd water pump controlling switch is connected with change-over switch automatic end, the other end and the 3rd water
The hot melt switch 3RJ connections of pump relay coil KM3 and the 3rd are followed by the power supply other end；
First water pump relay, the second water pump relay, the 3rd water pump relay control the first water pump 41, the second water respectively
The water pump 43 of pump 42 and the 3rd works.
As illustrated, one end of the power supply is also connected by the first relay coil KA1 with the power supply other end, described
The normal open switch KA1-1 connection power supply indicators of one relay, for controlling to light power supply indicator HR1.
Normal open switch KM1-1 the first water pumps of connection of the first water pump relay open indicator lamp HR2, for controlling to light
First water pump opens indicator lamp；The first water pump of normally closed switch KM1-2 connections of the first water pump relay closes indicator lamp HG1, uses
The first water pump, which is lighted, in control closes indicator lamp；Normal open switch KM2-1 the second water pumps of connection of second water pump relay open indicator lamp
HR3, lights the second water pump for control and opens indicator lamp；Normally closed switch KM2-2 the second water of connection of the second water pump relay
Pump closes indicator lamp HG2, for controlling to light the second water pump pass indicator lamp；The normal open switch KM3-1 of the 3rd water pump relay
Connect the 3rd water pump and open indicator lamp HR4, light the 3rd water pump for control and open indicator lamp；The 3rd water pump relay it is normally closed
Switch the water pump of KM3-2 connections the 3rd and close indicator lamp HG3, for controlling to light the 3rd water pump pass indicator lamp.
The normal open switch 1RJ-1 of the first hot melt switch, the normal open switch 2RJ-1 of the second hot melt switch, the 3rd hot melt
Connection fusing indicator lamp HY1 after the normal open switch 3RJ-1 of switch is in parallel, for controlling to light fusing indicator lamp HY1.
In the embodiments illustrated in the figures, control unit is realized using PLC, but those skilled in the art should manage
Solution, control unit of the present utility model can also realize that the control unit only needs to realize with other hardware circuits such as comparator
Judge the size of water pressure and setting value in cooling water pipeline, when water pressure is less than setting value in cooling water pipeline, send control
Signal, the first water pump controlling switch PLC4 of control, the second water pump controlling switch PLC5 and the 3rd water pump controlling switch PLC6 closures
Or disconnect.
According to one embodiment of the present utility model, if described control unit judges in cooling water pipeline that water pressure is less than the
One setting value, then control the first water pump controlling switch, the second water pump controlling switch and the 3rd water pump controlling switch to close；If cold
But water pressure is less than the second setting value in waterpipe, then controls the first water pump controlling switch, the second water pump controlling switch closure, the
Three water pump controlling switches disconnect；If water pressure is less than the 3rd setting value in cooling water pipeline, the first water pump controlling switch is controlled
Closure, the 3rd water pump controlling switch, the second water pump controlling switch disconnect；If water pressure is more than the 3rd setting in cooling water pipeline
Value, then control the first water pump controlling switch, the second water pump controlling switch, the 3rd water pump controlling switch to disconnect；Wherein first setting
Value<Second setting value<3rd setting value.
In this embodiment, control unit can be realized merely using comparison circuit, by three comparison circuits, wherein
The a reference value of one comparison circuit is the first setting value, and a reference value of the second comparison circuit is the second setting value, the 3rd comparison circuit
A reference value be the 3rd setting value, when in cooling water pipeline water pressure be less than the first setting value, then first comparator send signal
Close the first water pump controlling switch；If water pressure is less than the second setting value in cooling water pipeline, first comparator sends signal
The first water pump controlling switch is closed, the second comparator sends signal and closes the second water pump controlling switch；If cooling water pipeline reclaimed water
Pressure is less than the 3rd setting value, then first comparator sends signal and closes the first water pump controlling switch, and the second comparator sends letter
Number closure the second water pump controlling switch, the 3rd comparator send signal close the 3rd water pump controlling switch.
According to another embodiment of the present utility model, described control unit first determines whether that water pressure is less than in cooling water pipeline
Setting value, then control the first water pump controlling switch to close, and starts the time relay, after setting time is reached, cooling water pipe
Water pressure then controls the second water pump controlling switch to close still less than setting value in road, and is again started up the time relay, is reaching
After setting time, water pressure then controls the 3rd water pump controlling switch closure still less than setting value in cooling water pipeline.
In this embodiment, control unit needs the combination using comparison circuit and the time relay, the technology of this area
Personnel can carry out specific design according to the experience of oneself, will not be repeated here.
Further, the cooling water control system also includes automatic identification circuit relay, the automatic identification circuit
The automatic end connection of relay and change-over switch, the first normally closed switch PLC1 of the automatic identification circuit relay and the first water
It is in parallel with the first starting mode of pump switch 1SB after the normal open switch KM1-1 series connection of pump relay, the automatic identification circuit relay
The second normally closed switch PLC2 connected with the normal open switch KM2-1 of the second water pump relay after with the second starting mode of pump switch 3SB
Parallel connection, the 3rd normally closed switch PLC3 of the automatic identification circuit relay and the normal open switch KM3-1 of the 3rd water pump relay
It is in parallel with the 3rd starting mode of pump switch 5SB after series connection.
When can realize automatic unit work using the automatic identification circuit relay, it may be such that manual branch road disconnects, it is ensured that
Interlocking between automatically and manually.
Below according to the embodiment, operation principle of the present utility model is made a concrete analysis of.
When using manual unit control, by taking first manual branch road as an example, change-over switch is set to manual gear, presses first
Starting mode of pump switchs 1SB, then first manual branch road is turned on, the first water pump relay KM1 coil adhesives, the first pump working, together
When the first water pump relay KM1 normal open switch closure so that first manual branch road keep connected state.And due to sentencing automatically
The automatic end connection of other circuit relay and change-over switch, therefore now automatic identification circuit relay disconnects, automatic discrimination electricity
The first normally closed switch closure of road relay so that first manual branch road keeps connected state.And press the first water pump and stop opening
2SB is closed, then first manual branch road disconnects, the first water pump relay KM1 coils disconnect, the first water air pump inoperative, while the first water
Pump relay KM1 normal open switch disconnects so that when unclamping the first water pump shutdown switch 2SB, and the first water pump keeps the shape that do not work
State.
Which specific pump working, manually judges control.
When using automatic unit control, then the first water pump controlling switch, the control of the second water pump is controlled to open by control unit
Close and the 3rd water pump controlling switch close or disconnect, now with the first water pump controlling switch close, the second water pump controlling switch and
Exemplified by 3rd water pump controlling switch disconnects.
Now, change-over switch is set to automatic catch, first manual branch road, the second manual branch road and the 3rd manual branch road with
Power supply disconnects, while the first water pump controlling switch PLC1, the second water pump controlling switch PLC2, the 3rd water pump controlling switch PLC3
One end is connected with one end of power supply respectively, due to the first water pump controlling switch PLC1 closures, the first water pump controlling switch PLC1's
The other end is connected with the first water pump relay KM1 coils, the first water pump relay KM1 coil adhesives, the first pump working；Second
Water pump controlling switch and the 3rd water pump controlling switch disconnect, therefore the second water pump and the 3rd water air pump inoperative.
The utility model directly can control three cooling water pump machines come automatic or manual with power frequency by water pressure
Operating system, electrical structure is simple, and with low cost, the cover lid of module, which employs stainless steel fishing net shaped, to be made which raises thermal diffusivity,
Probability of malfunction is very low, through trial operation, is installed so far from July, tests, not occur further through the rainfall of major flood season in this year
Primary fault.The energy consumption and economy saved enterprise.Frequency of maintenance is reduced for administrative staff, is ensured to the full extent
The operation of equipment.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the utility model specific implementation is confined to these above-mentioned explanations.For the common skill of the utility model art
For art personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should
It is considered as belonging to protection domain of the present utility model.
Claims (7)
1. a kind of cooling water pipe path control system, the cooling water pipeline connects three water pumps simultaneously, it is characterised in that described cold
But water control system includes
Cooling water pipeline pressure sensor, for detecting cooling water pipeline hydraulic pressure force signal；
Water pressure, which is less than, in control unit, described control unit reception cooling water pipeline reclaimed water pressure signal, cooling water pipeline sets
Definite value then controls the first water pump controlling switch, the second water pump controlling switch and the 3rd water pump controlling switch closure or disconnected respectively；
Water pump control circuit, the water pump control circuit includes change-over switch and the manual unit being connected with the change-over switch
And automatic unit, one end connection of the input and power supply of the change-over switch, the manual end of the change-over switch is manual single
Member connection, the automatic end of the change-over switch is connected with automatic unit；
Wherein manual unit includes holding three manual branch roads being connected manually with change-over switch, and first manual branch road includes series connection and connected
The the first water pump shutdown switch connect and the first starting mode of pump switch, the normal open switch and the first starting mode of pump of the first water pump relay
Switch in parallel, first manual branch road is connected with the first water pump relay coil and the first hot melt switch and is followed by the power supply other end；The
Two manual branch roads include be connected in series the second water pump shutdown switch, the second starting mode of pump switch, the second water pump relay it is normal
Switch and the second starting mode of pump switch in parallel, the second manual branch road are opened with the second water pump relay coil and the second hot melt
Connection, which connects, is followed by the power supply other end；3rd manual branch road includes the 3rd water pump shutdown switch, the 3rd starting mode of pump being connected in series
Switch, the normal open switch and the 3rd starting mode of pump switch in parallel of the 3rd water pump relay, the 3rd manual branch road and the 3rd water
Pump relay coil and the 3rd hot melt switch connection are followed by the power supply other end；
Automatic unit includes the first water pump controlling switch, the second water pump controlling switch and the 3rd being connected with change-over switch automatic end
Water pump controlling switch, one end of the first water pump controlling switch is connected with change-over switch automatic end, the other end and the first water pump relay
Device coil and the first hot melt switch are connected in series and are followed by the power supply other end；One end of second water pump controlling switch and change-over switch are certainly
Moved end is connected, and the other end is connected with the second water pump relay coil and the second hot melt switch and is followed by the power supply other end；3rd water pump
One end of controlling switch is connected with change-over switch automatic end, and the other end connects with the 3rd water pump relay coil and the 3rd hot melt switch
Connect and be followed by the power supply other end；
First water pump relay, the second water pump relay, the 3rd water pump relay control the first water pump, the second water pump and respectively
Three pump workings.
2. a kind of cooling water pipe path control system as claimed in claim 1, it is characterised in that if water pressure in cooling water pipeline
Less than the first setting value, then described control unit controls the first water pump controlling switch, the second water pump controlling switch and the 3rd water pump
Controlling switch is closed；If water pressure is less than the second setting value in cooling water pipeline, the first water pump controlling switch, second are controlled
Water pump controlling switch is closed, and the 3rd water pump controlling switch disconnects；If water pressure is less than the 3rd setting value in cooling water pipeline, control
The first water pump controlling switch closure is made, the 3rd water pump controlling switch, the second water pump controlling switch disconnect；If cooling water pipeline reclaimed water
Pressure is more than the 3rd setting value, then controls the first water pump controlling switch, the second water pump controlling switch, the 3rd water pump controlling switch to break
Open；Wherein the first setting value<Second setting value<3rd setting value.
3. a kind of cooling water pipe path control system as claimed in claim 1, it is characterised in that described control unit is first determined whether
In cooling water pipeline water pressure be less than setting value, then control the first water pump controlling switch close, and start the time relay, up to
To after setting time, water pressure then controls the second water pump controlling switch to close still less than setting value in cooling water pipeline, and again
Start the time relay, after setting time is reached, water pressure then controls the 3rd water pump still less than setting value in cooling water pipeline
Controlling switch is closed.
4. a kind of cooling water pipe path control system as claimed in claim 1, it is characterised in that the cooling water control system is also
Including automatic identification circuit relay, the automatic end of the automatic identification circuit relay and change-over switch is connected, described automatic
First normally closed switch of judging circuit relay is opened after being connected with the normal open switch of the first water pump relay with the first starting mode of pump
Close in parallel, after the second normally closed switch of the automatic identification circuit relay is connected with the normal open switch of the second water pump relay and
Second starting mode of pump switch in parallel, the 3rd normally closed switch of the automatic identification circuit relay is normal with the 3rd water pump relay
With the 3rd starting mode of pump switch in parallel after switch series connection.
5. a kind of cooling water pipe path control system as claimed in claim 1, it is characterised in that one end of the power supply also passes through
First relay coil is connected with the power supply other end, the normal open switch connection power supply indicator of first relay.
6. a kind of cooling water pipe path control system as claimed in claim 1, it is characterised in that the first water pump relay
Normal open switch connects the first water pump and opens indicator lamp；The normally closed switch of the first water pump relay connects the first water pump and closes instruction
Lamp；The normal open switch of second water pump relay connects the second water pump and opens indicator lamp；The normally closed switch of the second water pump relay
Connect the second water pump and close indicator lamp；The normal open switch of the 3rd water pump relay connects the 3rd water pump and opens indicator lamp；Described
The normally closed switch of three water pump relays connects the 3rd water pump and closes indicator lamp.
7. a kind of cooling water pipe path control system as claimed in claim 1, it is characterised in that it is normal that first hot melt is switched
Switch, the normal open switch of the second hot melt switch, the 3rd hot melt switch normal open switch it is in parallel after connection fusing indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300584.5U CN206386256U (en) | 2016-11-30 | 2016-11-30 | A kind of cooling water pipe path control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300584.5U CN206386256U (en) | 2016-11-30 | 2016-11-30 | A kind of cooling water pipe path control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386256U true CN206386256U (en) | 2017-08-08 |
Family
ID=59487747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621300584.5U Expired - Fee Related CN206386256U (en) | 2016-11-30 | 2016-11-30 | A kind of cooling water pipe path control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805542A (en) * | 2019-09-09 | 2020-02-18 | 河源旗滨硅业有限公司 | Cooling water control method, device and system and computer readable medium |
-
2016
- 2016-11-30 CN CN201621300584.5U patent/CN206386256U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805542A (en) * | 2019-09-09 | 2020-02-18 | 河源旗滨硅业有限公司 | Cooling water control method, device and system and computer readable medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206457875U (en) | A kind of intelligent water supply and share system based on PLC | |
| CN206386256U (en) | A kind of cooling water pipe path control system | |
| CN111561440A (en) | High efficiency air compressor machine unit control system | |
| CN103776132B (en) | A kind of controlling system of central air conditioner | |
| CN204252215U (en) | A kind of cooling water recirculation system | |
| CN207096826U (en) | A kind of automatic pump drainage water installations with warning function | |
| CN103982454B (en) | A kind of main transformer radiator intelligent frequency-conversion blower fan and using method with photovoltaic conversion function | |
| CN205636092U (en) | Sewing machine excessive pressure overcurrent protection system | |
| CN103234070B (en) | Tap water supply failure delayed self-closing valve device | |
| CN202887004U (en) | Automatic control system for water conservancy gates | |
| CN202712966U (en) | Novel digital EPS (emergency power supply) fire-fighting emergency power supply system | |
| CN202712964U (en) | Novel digital intelligent EPS fire emergency power supply system | |
| CN105089965B (en) | A kind of AC photovoltaic water pump system and its control method | |
| CN205445987U (en) | Water pump controller | |
| CN108508947A (en) | A kind of intelligent switchboard system dehumidification heater | |
| CN204286531U (en) | Sun power liquid level sound light alarm system | |
| CN111238607B (en) | Durability test device and method for water meter | |
| CN201343744Y (en) | Automatic-boost tap water saver | |
| CN203949386U (en) | Intelligent temperature control water tank | |
| CN204329464U (en) | Refrigerator intelligent electric-saving device | |
| CN208672727U (en) | Feeder line detection and control terminal DTU | |
| CN105764213A (en) | Classroom illumination system intelligent control device | |
| CN205611024U (en) | Classroom lighting system intelligent control device | |
| CN203771628U (en) | Energy-saving control system for central air-conditioner | |
| CN103423143A (en) | Patrol control device of large-scale sewage pump set of municipal drainage pipeline network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20171130 |