CN207295851U - Emergent automatic water-supply circuit and its system after electrical failure - Google Patents
Emergent automatic water-supply circuit and its system after electrical failure Download PDFInfo
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- CN207295851U CN207295851U CN201720796833.2U CN201720796833U CN207295851U CN 207295851 U CN207295851 U CN 207295851U CN 201720796833 U CN201720796833 U CN 201720796833U CN 207295851 U CN207295851 U CN 207295851U
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Abstract
The utility model discloses the emergent automatic water-supply circuit and its system after a kind of electrical failure, include the power frequency contactless contactor of first end connection emergency bilge pump, the second end of power frequency contactless contactor connects the first end of normal power supply switch and emergency service switch respectively, the second end connection power supply of normal power supply switch, the first end of the second end connection pressure switch of emergency service switch；The first end of the second end connection power frequency contactor coil of pressure switch, the second end connection power supply of power frequency contactor coil.The utility model closes former control loop power switch when supply equipment frequency conversion constant voltage control system chance failure, opens emergency service switch, at this time, emergency bilge pump is stressed the control of switch, height is carried out to emergency bilge pump stops the low operation opened to control, ensure Emergency water supply at this time.Make supply equipment water supply guarantee degree high, electrical malfunction supplies water without influencing, and can realize Emergency water supply, not cut off the water supply, and has striven for the time for electrical equipment failure repairing.
Description
Technical field
The utility model is related to a kind of supply equipment, and in particular to a kind of emergent automatic water-supply circuit after electrical failure and
Its system.
Background technology
Skyscraper or intermediate booster pump station take constant voltage mode to supply water, by frequency control, constant system pressure of supply water,
Through discharge pressure sensor feedback, no matter how water consumption changes, and is acted on by frequency converter timing, is changed according to water consumption automatic
The rotating speed and plus-minus pump of force (forcing) pump are adjusted, system is remained constant pressure water supply state.
If electric control system fails, such as frequency converter, or PLC, or the failure of the electrical equipment such as Switching Power Supply, i.e. control system
System breaks down, then supply equipment can not be run, and necessarily be shut down, and be bound to cause and cut off the water, and influence resident's normal life.In order to ensure
Water system has high-reliability, in electric control system failure situation, is unlikely to shutdown and cuts off the water, standby in system design
With a set of Emergency water supply pattern.
Utility model content
In view of the above-mentioned problems, the utility model proposes it is a kind of can emergency guarantee supply water, after energy saving electrical failure should
Anxious automatic water-supply circuit and its system.
The technical solution of the utility model is：A kind of emergent automatic water-supply circuit after electrical failure, including first end connect
The power frequency contactless contactor of emergency bilge pump is connect, the second end of power frequency contactless contactor connects normal power supply switch and emergent confession respectively
The first end of electric switch, the second end connection power supply of normal power supply switch, the second end connection pressure switch of emergency service switch
First end；The first end of the second end connection power frequency contactor coil of pressure switch, the second end of power frequency contactor coil connect
Connect the controlled end of normal power supply switch.
A kind of emergence watering system after electrical failure, including water inlet manifold and outfall sewer, the water inlet manifold and go out
Connected between supply mains by multiple water pumps in parallel, one of water pump is the emergency bilge pump；Each water pump into
The mouth of a river is both provided with inlet valve, and the water outlet of each water pump is both provided with check-valves；The outfall sewer passes through the first valve
It is connected with vacuum tank；The vacuum tank is built-in with air bag, and a closed chamber is formed between the outer wall of air bag and the inner wall of vacuum tank
Room；The lower end of the air bag is fixed by elbow flange seal, and the upper end of air bag is sealed by blank flange to be fixed, the pressure
Switch is arranged on the blank flange of outfall sewer or vacuum tank；The pressure switch and each water pump are all connected with being used for intelligence control
The switch board of system.
It may further be preferable that the normal power supply switch and emergency service switch may be contained within switch board；The pressure
Power switch connects emergency bilge pump by emergency service switches conductive.When electric abnormal failure, normal power supply switch is closed, is passed through
Circuit is Emergency water supply circuit by normal water supply circuit conversion by emergency commutator switch, makes one measure of making a response in time, and lead to
Excess pressure switch detection pressure condition, and accomplish that height stops the low purpose opened in real time.
It is even furthermore preferable that the air pressure valve to airtight chamber's inflation is provided with the vacuum tank.It is convenient
Internally inflated when air pressure is insufficient in confined space.
It is even furthermore preferable that the air gauge for detecting pressure in confined space is additionally provided with the vacuum tank.
Toward internal pressure is monitored in real time when being inflated between gasbag ektexine and inner tank wall, ensure that internal pressure is maintained in normal range (NR), more
Add safety.
The beneficial effects of the utility model are：
Using pressure switch, (such as PLC, frequency converter and switch when supply equipment frequency conversion constant voltage control system chance failure
The failures such as power supply), it is impossible to when working normally, former control loop power switch is closed, opens emergency service switch, at this time, is met an urgent need
Water pump is stressed the control of switch, according to the high limit of default pressure and pressure low limit, carries out height to emergency bilge pump and stops the low behaviour opened
Control, ensure Emergency water supply at this time.Make supply equipment water supply guarantee degree high, electrical malfunction supplies water without influencing, energy
Realize Emergency water supply, do not cut off the water supply, strive for the time for electrical equipment failure repairing.
Brief description of the drawings
Fig. 1 is the circuit diagram of embodiment one；
Fig. 2 is the part water service plan of embodiment two.
Reference numeral：1- water inlet manifolds, 2- outfall sewers, 3- water pumps, the first valves of 4-, 5- vacuum tanks, 6- air bags, 7- gas
Press table, KM1- power frequency contactor, QF1- normal power supply switchs, QF2- emergency service switchs, P1- pressure switch.
Embodiment
The technical solution of the utility model is described in detail below, it should be noted that following is only this practicality
New preferred embodiment, for those of ordinary skill in the art, design is created not departing from the utility model
Under the premise of, various modifications and improvements can be made, these should belong to the scope of protection of the utility model.
Embodiment one
As shown in Figure 1, the emergent automatic water-supply circuit after a kind of electrical failure, includes the work that first end connects emergency bilge pump
Frequency contactor KM1Switch, power frequency contactor KM1The second end of switch connects normal power supply switch QF respectively1Switched with emergency service
QF2First end, normal power supply switch QF1Second end connection power supply, emergency service switch QF2Second end connection pressure open
Close P1First end；Pressure switch P1Second end connection power frequency contactor KM1The first end of coil, power frequency contactor KM1Coil
Second end connection normal power supply switch QF1Controlled end.
When supply equipment frequency conversion constant voltage control system chance failure (such as PLC, frequency converter and Switching Power Supply failure), no
When can work normally, former control loop power switch QF is closed1, open emergency service switch QF2, at this time, emergency bilge pump is stressed
Switch P1Control, according to the high limit of default pressure and pressure low limit, height carried out to emergency bilge pump stop the low operation opened to control, protect
The Emergency water supply of card at this time.Make supply equipment water supply guarantee degree high, electrical malfunction supplies water without influencing, and can realize emergent confession
Water, does not cut off the water supply, and has striven for the time for electrical equipment failure repairing.
Embodiment two
The present embodiment is the emergence watering system after a kind of electrical failure on the basis of embodiment one, as shown in Fig. 2,
Including water inlet manifold 1 and outfall sewer 2, connected between the water inlet manifold 1 and outfall sewer 2 by multiple water pumps 3 in parallel,
One of water pump 3 is the emergency bilge pump；The water inlet of each water pump 3 is both provided with inlet valve, each water pump 3
Water outlet is both provided with check-valves；The outfall sewer 2 is connected with vacuum tank 5 by the first valve 4；Built in the vacuum tank 5
There is air bag 6, an airtight chamber is formed between the outer wall of air bag 6 and the inner wall of vacuum tank；The lower end of the air bag 6 passes through elbow
Flange seal is fixed, and the upper end of air bag is sealed by blank flange to be fixed, the pressure switch P1It is arranged on outfall sewer 2 or steady
On the blank flange for pressing tank 5, as embodiment, the present embodiment is preferably by pressure switch P1It is arranged on the blind plate method of vacuum tank 5
Lan Shang；The pressure switch P1The switch board for intelligent control is all connected with each water pump.
By this scheme, frequency-changing pressure stabilizing or without negative pressure (laminate) on supply equipment outlet pipe by the first gate valve with it is steady
Pressure tank is connected.Under supply equipment normal operating conditions, vacuum tank plays the role of buffering discharge pressure and night small flow pressure maintaining.
When electric control system fails, the pressurization pump group being made of all water pumps is shut down, and is started emergency bilge pump power frequency and is operated to water outlet
Pipe pressurization is supplied water, while is entered in vacuum tank air bag, and simultaneously pressure rises for air bag expansion, when reaching the maximum pressure value of setting,
Pressure signal is fed back in the switch board for intelligent control by the control line of pressure switch, switch board control emergency bilge pump
Shut down；Decline with outlet pipeline pressure, i.e., when vacuum tank intracapsular pressure drops to the startup pressure of setting, pass through pressure detecting
Pressure sensor signal is fed back to the controller in switch board by the control line of device, and control emergency bilge pump starts, continues to water outlet
Pipeline pressurization is supplied water, and so repeatedly, reaches Emergency water supply effect.
Integral device is simple, makes supply equipment water supply guarantee degree high, and electrical malfunction supplies water without influencing, and can realize should
It is anxious to supply water, do not cut off the water supply, striven for time, while storage water in the vacuum tank configured for electrical equipment failure repairing, pressure can be played
Power buffers and night small flow pressure maintaining pressure stabilization function, is set by the pressure bound of vacuum tank, circuit is opened/stop more simply,
Avoid motor from frequently opening/stop, reduce force (forcing) pump start-stop time, reach energy saving purpose；Water is stored in vacuum tank at the same time, gives one
Fixed buffering, pressure oscillation is excessive when preventing from pumping start and stop, the destruction caused by equipment.
Preferably, the normal power supply switch QF1QF is switched with emergency service2It may be contained within switch board；The pressure is opened
Close P1QF is switched by emergency service2It is conductively connected emergency bilge pump.When electric abnormal failure, normal power supply switch is closed, is passed through
Circuit is Emergency water supply circuit by normal water supply circuit conversion by emergency commutator switch, makes one measure of reacting in time, and lead to
Excess pressure switch detection pressure condition, and accomplish that height stops the low purpose opened in real time.
Preferably, the air pressure valve to airtight chamber's inflation is provided with the vacuum tank 5.Conveniently in confined space
Interior air pressure is internally inflated when insufficient.
Preferably, the air gauge 7 for detecting pressure in confined space is additionally provided with the vacuum tank 5.Toward outside air bag
Internal pressure is monitored in real time when being inflated between wall and inner tank wall, ensures that internal pressure is maintained in normal range (NR), it is safer.
It should be noted that all features disclosed in this specification, or disclosed all methods or during the step of,
In addition to mutually exclusive feature and/or step, it can combine in any way.
The technical solution of the utility model can preferably be realized according to the record of this specification.
Claims (5)
1. the emergent automatic water-supply circuit after a kind of electrical failure, it is characterised in that include the work of first end connection emergency bilge pump
Frequency contactor (KM1) switch, power frequency contactor (KM1) switch second end connect respectively normal power supply switch (QF1) and emergent confession
Electric switch (QF2) first end, normal power supply switch (QF1) second end connection power supply, emergency service switch (QF2) second
End connection pressure switch (P1) first end；Pressure switch (P1) second end connection power frequency contactor (KM1) coil first
End, power frequency contactor (KM1) coil second end connection normal power supply switch (QF1) controlled end.
2. the emergence watering system after a kind of electrical failure comprising automatic water-supply circuit of meeting an urgent need described in claim 1, its feature
It is, including water inlet manifold and outfall sewer, connected between the water inlet manifold and outfall sewer by multiple water pumps in parallel,
One of water pump is the emergency bilge pump；The water inlet of each water pump is both provided with inlet valve, and each water pump goes out
The mouth of a river is both provided with check-valves；The outfall sewer is connected with vacuum tank by the first valve；The vacuum tank is built-in with air bag,
An airtight chamber is formed between the outer wall of air bag and the inner wall of vacuum tank；The lower end of the air bag is consolidated by elbow flange seal
Fixed, the upper end of air bag is sealed by blank flange to be fixed, the pressure switch (P1) it is arranged on the blind of outfall sewer or vacuum tank
On plate flange；Pressure switch (the P1) and each water pump be all connected with the switch board for intelligent control.
3. the emergence watering system after electrical failure according to claim 2, it is characterised in that the normal power supply switch
(QF1) and emergency service switch (QF2) may be contained within switch board；Pressure switch (the P1) (QF switched by emergency service2)
It is conductively connected emergency bilge pump.
4. the emergence watering system after electrical failure according to claim 2, it is characterised in that set on the vacuum tank
There is the air pressure valve to airtight chamber's inflation.
5. the emergence watering system after electrical failure according to claim 2, it is characterised in that also set on the vacuum tank
It is equipped with the air gauge for detecting pressure in confined space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720796833.2U CN207295851U (en) | 2017-07-03 | 2017-07-03 | Emergent automatic water-supply circuit and its system after electrical failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720796833.2U CN207295851U (en) | 2017-07-03 | 2017-07-03 | Emergent automatic water-supply circuit and its system after electrical failure |
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| Publication Number | Publication Date |
|---|---|
| CN207295851U true CN207295851U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720796833.2U Active CN207295851U (en) | 2017-07-03 | 2017-07-03 | Emergent automatic water-supply circuit and its system after electrical failure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855512A (en) * | 2021-01-06 | 2021-05-28 | 湖北扬子江泵业（武汉）有限责任公司 | Emergency starting method for water pump control system fault |
-
2017
- 2017-07-03 CN CN201720796833.2U patent/CN207295851U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855512A (en) * | 2021-01-06 | 2021-05-28 | 湖北扬子江泵业（武汉）有限责任公司 | Emergency starting method for water pump control system fault |
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