CN207817440U - Water ring vacuum pump switch control electric cabinet - Google Patents
Water ring vacuum pump switch control electric cabinet Download PDFInfo
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- CN207817440U CN207817440U CN201820077159.7U CN201820077159U CN207817440U CN 207817440 U CN207817440 U CN 207817440U CN 201820077159 U CN201820077159 U CN 201820077159U CN 207817440 U CN207817440 U CN 207817440U
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Abstract
Water ring vacuum pump switch control electric cabinet, belongs to water ring vacuum pump technical equipment field.Including at least two control modules, each group of control module includes water supply solenoid valve and pneumatic on-off valve, equipment control circuit and signal circuit are set in each group of control module, it includes liquid-level switch that water supply solenoid valve control loop, which is arranged, the contact portion of liquid-level switch is in the current supply circuit of water supply solenoid valve, it includes pressure switch that pneumatic on-off valve control loop, which is arranged, pressure switch detects inside gas path pipe, the contact portion of pressure switch is in the current supply circuit with pneumatic on-off valve, the contact of the automatic loop switch of signal circuit one end connection equipment control circuit in every group of control module, the other end of signal circuit connects control system jointly in all control modules, control system switches the working condition of different control modules, connect control module.It being capable of auto-controll operation and stand-by equipment start and stop and the interior switch control of equipment.
Description
Technical field
Water ring vacuum pump switch control electric cabinet, belongs to water ring vacuum pump technical equipment field.
Background technology
The moisturizing being arranged on the water pipe that steam-water separation pumps is needed to have in power industry, Water-ring vacuum pumping unit
Solenoid valve, water supply solenoid valve are used to, in the steam-water separator moisturizing of the forward direction water ring vacuum pump of water ring vacuum pump booting, make water ring
Vacuum pump normally starts and forms water ring.In addition need to also in gas path pipe pneumatic on-off valve control, control gas path pipe in
Pressure；And equipment must run and can not occur the case where shutdown for a long time, in order to solve this problem, it will usually extremely
Two sets Water-ring vacuum pumping units are set less, realize one open one it is standby or one open prepare more principle, need often to exchange between equipment and transport
Row, one is used to run, and miscellaneous equipment deactivates to check that equipment situation and maintenance, this process usually require manual operation and cut
Stand-by equipment operation is changed, emergency situations can not be made and be adjusted in time.In view of the deficiencies of the prior art, it is badly in need of at present a kind of
It being capable of auto-controll operation and stand-by equipment start and stop and the interior technical solution for switching control of equipment.
Invention content
The technical problems to be solved in the utility model is：Overcoming the deficiencies of the prior art and provide one kind can automatically control
The water ring vacuum pump of switch control switch control electric cabinet in operation and stand-by equipment start and stop and equipment.
Technical solution adopted by the utility model to solve its technical problems is：The water ring vacuum pump is automatically controlled with switch control
Case, including at least two control modules, each group of control module includes water supply solenoid valve and pneumatic on-off valve, and water supply solenoid valve is set
It sets on the water pipe of steam-water separator, pneumatic on-off valve is arranged in gas path pipe port, it is characterised in that：In each group of control
Also set up equipment control circuit and signal circuit in molding block, equipment control circuit include water supply solenoid valve control loop and
Pneumatic on-off valve control loop, water supply solenoid valve control loop include liquid-level switch, and liquid-level switch is arranged in steam-water separator
Side wall, for the contact portion of liquid-level switch in the current supply circuit of water supply solenoid valve, pneumatic on-off valve control loop includes that pressure is opened
It closes, pressure switch detects inside gas path pipe, and the contact portion of pressure switch is in the current supply circuit with pneumatic on-off valve, every group
The contact of the automatic loop switch of signal circuit one end connection equipment control circuit in control module, all control modules
The other end of middle signal circuit connects control system jointly, and control system switches the working condition of different control modules, connects
Logical at least one set control module.
Preferably, the liquid-level switch includes that high level switch is switched with low liquid level, the normally-closed contact of high level switch
It connects with the normally opened contact of low liquid level switch.
Preferably, the pressure switch includes setting up constant-pressure switch, sets up constant-pressure switch and is arranged in gas path pipe
It is interior.
Preferably, the pneumatic on-off valve includes pneumatic pass valve and pneumatic valve opening, and setting first pressure switchs coil string
The contact for being associated in the pressure switch is closed with pneumatic in the circuit that valve coil is connect, and setting second pressure switchs coil and is connected on
In the circuit that the contact of the pressure switch is connect with pneumatic valve opening.
Preferably, the signal circuit includes signal input circuit and signal output apparatus.
Preferably, further include the double setting pressure switches being arranged in pneumatic on-off valve control loop, double setting pressure are opened
Two set points closed are separately connected the signal output apparatus.
The operation principle of the utility model is：
By the way that water supply solenoid valve control loop and pneumatic on-off valve control circuit is arranged, set in water supply solenoid valve control loop
After setting liquid-level switch detection liquid level, being turned on and off for water supply solenoid valve is controlled, pressure is set in pneumatic on-off valve control loop
Pressure in switch detection gas path pipe, controls being turned on and off for pneumatic on-off valve.
Compared with prior art, advantageous effect possessed by the utility model is：
1, water ring vacuum pump switch control electric cabinet, having auto-controll operation and stand-by equipment start and stop and can set
The advantageous effect of standby interior switch control.
2, water supply solenoid valve control loop and pneumatic on-off valve control circuit in the utility model are set, liquid-level switch is passed through
Control of the liquid level realization of steam-water separator to water supply solenoid valve is detected, the pressure for passing through the gas path pipe that pressure switch detects is real
Now to the control of pneumatic on-off valve.
3, high level switch and low liquid level switch in the utility model are set, the inspection respectively to different height liquid level is passed through
It surveys, realizes that more accurately moisturizing controls.
4, pneumatic on-off valve is respectively set pneumatic valve opening and pneumatically closes valve in the utility model, by first pressure coil and
Second pressure coil realizes pneumatic valve opening coil and the pneumatic gain and loss electric control for closing valve coil respectively, so control pneumatic valve opening and
It is pneumatic to close whether valve is opened.
5, signal circuit is also set up in the utility model, facilitates other switch control electric cabinets of connection, when this TV station is opened
When closing control electric cabinet failure, signal circuit sends signal to another backup circuit breaker control electric cabinet, opens standby
With electric cabinet, having makes the advantageous effect that equipment does not stall.
6, double setting pressure switches are also set up in the utility model, two set points of double setting pressure switches are respectively height
Vacuum point and low vacuum point send signal by signal output apparatus when reaching high vacuum point and deactivate stand-by pump, reach low vacuum
Signal is sent by signal output apparatus when point and opens stand-by pump.
Description of the drawings
Fig. 1 is the circuit control principle figure of the utility model.
Fig. 2 is the structural schematic diagram of liquid-level switch part in the utility model.
Fig. 3 is the structural schematic diagram of jettron part in the utility model.
Wherein：1, high level switch 2, low liquid level switch 3, set up constant-pressure switch 4, pneumatic on-off valve 5, vapour
Separator 6, discharge outlet 8, magnetic double level gauge 9, gas path pipe 10, shut-off valve 11, double is set exhaust outlet 7
Constant-pressure switchs.
Specific implementation mode
Fig. 1 ~ 3 are the most preferred embodiments of the utility model, and 1 ~ 3 pair of the utility model is done furtherly below in conjunction with the accompanying drawings
It is bright.
As shown in Figure 1, the present embodiment includes at least two control modules, each group of control module includes water supply solenoid valve
With pneumatic on-off valve 4, water supply solenoid valve is arranged on the water pipe of steam-water separator 5, and pneumatic on-off valve 4 is arranged in gas circuit pipe
9 port of road, also sets up equipment control circuit and signal circuit in each group of control module, and equipment control circuit includes mending
Water solenoid valve control loop and pneumatic on-off valve control circuit, water supply solenoid valve control loop include liquid-level switch, liquid-level switch
It is arranged in 5 madial wall of steam-water separator, liquid-level switch relay coil is connected on contact and the water supply solenoid valve line of liquid-level switch
It encloses in the circuit of connection, pneumatic on-off valve control loop includes pressure switch, and pressure switch detects inside gas path pipe 9, pressure
Switch relay coil is connected in the circuit that the contact of pressure switch is connect with 4 coil of pneumatic on-off valve；Every group of control module
In signal circuit one end connection equipment control circuit automatic loop switch contact, signal passes in all control modules
The other end on transmission of electricity road connects control system jointly, and control system switches the working condition of different control modules, connects at least one
Group control module.Control system is DCS control systems in the present embodiment, and automatic loop switch is switch in equipment control circuit
AUTO, after switch AUTO is closed, corresponding automatic loop operation, automatic controlled water replanishing solenoid valve and pneumatic on-off valve are realized and are opened
Or it closes.Pneumatic on-off valve 4 in the present embodiment is Pneumatic butterfly valve.
As shown in Fig. 2, liquid-level switch can be arranged two in the present embodiment, respectively high level switch 1 is switched with low liquid level
2, high level switch 1 and low liquid level switch 2 are separately positioned on 5 madial wall of steam-water separator, and high level switch 1 is arranged in low liquid
The normally-closed contact of the top of bit switch 2, high level switch 1 is connected with the normally opened contact of low liquid level switch 2.
Magnetic double level gauge 8 is set in the present embodiment between high level switch 1 and low liquid level switch 2, under steam-water separator 5
Exhaust outlet 6 is arranged in end setting discharge outlet 7, upper end, and discharge outlet 7 and exhaust outlet 6 are connected to outside.
When the liquid level in steam-water separator 5 reaches 2 place height of low liquid level switch, low liquid level switch 2 is closed, due to height
Liquid-level switch 1 is normally closed, and liquid-level switch relay coil K10 is obtained electric at this time, makes the normal open switch K10-1 and K10-2 being arranged with it
Switch is closed, and then water supply solenoid valve valve opening coil YA3 obtains electric, water supply solenoid valve valve opening opening, beginning moisturizing；When liquid level reaches
When high level switch 1, high level switch 1 disconnects, and liquid-level switch relay coil K10 dead electricity, makes that normally opened open is arranged with it at this time
It closes K10-1 and K10-2 switches to disconnect, water supply solenoid valve valve opening coil YA3 dead electricity, water supply solenoid valve valve opening is closed, and then is stopped
Moisturizing.
As shown in figure 3, pressure switch includes setting up constant-pressure switch 3 in the present embodiment, the setting pipe of constant-pressure switch 3 is set up
Road is connected to inside gas path pipe 9, and shut-off valve 10 is arranged with 3 connectivity part of constant-pressure switch is set up in gas path pipe 9, sets up constant-pressure and opens
The gas pressure in 3 detection gas path pipes 9 is closed, sets up constant-pressure switch 3 only including a set point switch 47b, when reaching this
When set point, set point switch 47b closures, the control opening of pneumatic on-off valve 4, pneumatic on-off valve 4 is including pneumatic pass valve and pneumatically
Valve opening, the coil of pressure switch include first pressure switch coil and second pressure switch coil, first pressure switch coil with
The pneumatic valve coil that closes obtains dead electricity together, and second pressure switchs coil and obtains dead electricity together with pneumatic valve opening coil.In the present embodiment
One pressure switch coil is KA1, and it is K7 that second pressure, which switchs coil,.
Equipment control circuit further includes pneumatic on-off valve control loop in the present embodiment, and pneumatic on-off valve control loop receives
After MCC controls signal, contactor coil KM is closed, and coil KA1 obtains electric, normal open switch KA1-1 and KA1-2 closure, normally closed switch
KA1-3 and KA1-4 is disconnected；Set up at this time constant-pressure switch 3 detect gas path pipe 9 pressure reach preset numerical value after, setting
Point switch 47b is closed, and relay coil K7 obtains electric, and normal open switch K7 is closed at this time, and pneumatic valve opening coil YA1 obtains electric, pneumatic pass
Valve coil YA2 dead electricity, i.e. pneumatic on-off valve 4 are in the open state.
After 4 control loop of pneumatic on-off valve receives MCC control signals, contactor coil KM is disconnected, coil KA1 dead electricity, often
Switch KA1-1 and KA1-2 are disconnected, and normally closed switch KA1-3 and KA1-4 are closed；Gas path pipe is detected when setting up constant-pressure switch 3
After 9 pressure is not up to preset numerical value, set point switch 47b is disconnected, coil K7 dead electricity, and normal open switch K7 is disconnected at this time, gas
Valve opening coil YA1 dead electricity is moved, pneumatically pass valve coil YA2 is obtained electric, i.e., pneumatic on-off valve 4 is closed.
Signal circuit is also set up, signal circuit includes signal input circuit and signal output apparatus, this implementation
Multiple control modules are connect by respective signal input circuit and signal output apparatus with DCS control systems in example, DCS controls
System realizes that closing for the contact of the automatic loop switch of equipment control circuit is realized in the switching of control module, the control module of connection
It closes.
Power supply indicator HL1, run indicator HL2, malfunction indicator lamp HL3 are also set up in the present embodiment, pass through phase respectively
The indicator light answered indicates that the state of current circuit, setting travel switch 16a-1 and travel switch 16a-2 are mounted on pneumatic on-off valve
On 4, the open state of travel switch 16a-1 feedback pneumatic on-off valves 4, travel switch 16a-1 is controlled jointly with normal open switch KA1-2
Relay coil K8 processed obtains dead electricity, and travel switch 16a-2 and normally closed switch KA1-3 co- controlling relay coils K9 obtains dead electricity；
The closed state of travel switch 16a-2 feedback pneumatic on-off valves 4, relay coil K8, K9 are respectively by the state of pneumatic on-off valve 4
DCS control rooms are fed back to, whether the state for feeding back to the current pneumatic on-off valve of client 4 opens or closes as requested；Relay coil
When K8 obtains electric, normal open switch K8 is closed, and makes the light on and off of run indicator HL2；Switch K-1 and K-2 is arranged in fault loop；Work as K-1
When obtaining electric, K-2 dead electricity, K-2 on the contrary obtains electric.
Further include the double setting pressure switches 11 being arranged in pneumatic on-off valve control loop, double setting pressure switches 11 are set
The pressure switch of corresponding two set points, respectively high vacuum point pressure switch 47aH and low vacuum point pressure switch 47aL are set,
Two set points are separately connected the signal output apparatus；It is opened when the pressure value in gas path pipe 9 reaches high vacuum point pressure
When closing 47aH, closure switch K-1 disconnects switch K-2, and then deactivates stand-by pump, when the pressure value in gas path pipe 9 reaches low true
When null point pressure switch 47aL, switch K-1, closure switch K-2 are disconnected, it is spare to send out signal unlatching by signal output apparatus
Pump.
Also set up remote control circuit in the present embodiment in equipment control circuit, mating distant of remote control circuit input terminal wireless receiving
The signal that sends out of control equipment, the closure of the contact of control remote control circuit switch, relay coil K3 obtain electric, and equipment control circuit obtains
Electric operation passes through the connection of remote control group control module.Manual loop can be also set in the present embodiment, according to actual needs
The artificial contact for being closed manual loop switch controls the connection of corresponding control module.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is every without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Any simple modification, equivalent variations and remodeling, still fall within the guarantor of technical solutions of the utility model made by confrontation above example
Protect range.
Claims (6)
1. water ring vacuum pump switch control electric cabinet, including at least two control modules, each group of control module includes moisturizing
Solenoid valve and pneumatic on-off valve（4）, water supply solenoid valve setting is in steam-water separator（5）Water pipe on, pneumatic on-off valve（4）
It is arranged in gas path pipe（9）Port, it is characterised in that：Equipment control circuit is also set up in each group of control module and signal passes
Transmission of electricity road, equipment control circuit include water supply solenoid valve control loop and pneumatic on-off valve control circuit, water supply solenoid valve control
Circuit includes liquid-level switch, and liquid-level switch is arranged in steam-water separator（5）Madial wall, the contact portion of liquid-level switch is in moisturizing electricity
In the current supply circuit of magnet valve, pneumatic on-off valve control loop includes pressure switch, and pressure switch detects gas path pipe（9）Inside,
The contact portion of pressure switch with pneumatic on-off valve（4）Current supply circuit in, the signal circuit in every group of control module
One end connects the contact of the automatic loop switch of equipment control circuit, and the other end of signal circuit is total in all control modules
With connection control system, control system switches the working condition of different control modules, connects at least one set of control module.
2. water ring vacuum pump according to claim 1 switch control electric cabinet, it is characterised in that：The liquid-level switch
Including high level switch（1）It is switched with low liquid level（2）, high level switch（1）Normally-closed contact and low liquid level switch（2）It is normally opened
Contact series.
3. water ring vacuum pump according to claim 1 switch control electric cabinet, it is characterised in that：The pressure switch
Including setting up constant-pressure switch（3）, set up constant-pressure switch（3）It is arranged in gas path pipe（9）It is interior.
4. water ring vacuum pump according to claim 1 switch control electric cabinet, it is characterised in that：The jettron
Valve（4）Including pneumatically closing valve and pneumatic valve opening, setting first pressure switch coil be connected on the contact of the pressure switch with
In the pneumatic circuit for closing valve coil connection, setting second pressure switch coil be connected on the contact of the pressure switch with it is pneumatic
In the circuit of valve opening connection.
5. water ring vacuum pump according to claim 1 switch control electric cabinet, it is characterised in that：The signal transmission
Circuit includes signal input circuit and signal output apparatus.
6. water ring vacuum pump according to claim 5 switch control electric cabinet, it is characterised in that：Further include being arranged in gas
Double setting pressure switches in dynamic switch valve control loop（11）, double setting pressure switches（11）Two set points be separately connected
The signal output apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820077159.7U CN207817440U (en) | 2018-01-17 | 2018-01-17 | Water ring vacuum pump switch control electric cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820077159.7U CN207817440U (en) | 2018-01-17 | 2018-01-17 | Water ring vacuum pump switch control electric cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207817440U true CN207817440U (en) | 2018-09-04 |
Family
ID=63326083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820077159.7U Active CN207817440U (en) | 2018-01-17 | 2018-01-17 | Water ring vacuum pump switch control electric cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207817440U (en) |
-
2018
- 2018-01-17 CN CN201820077159.7U patent/CN207817440U/en active Active
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