CN209325141U - A kind of device controlling electrically operated valve - Google Patents
A kind of device controlling electrically operated valve Download PDFInfo
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- CN209325141U CN209325141U CN201821492304.4U CN201821492304U CN209325141U CN 209325141 U CN209325141 U CN 209325141U CN 201821492304 U CN201821492304 U CN 201821492304U CN 209325141 U CN209325141 U CN 209325141U
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Abstract
The utility model discloses a kind of devices for controlling electrically operated valve, belong to valve control field.Described device includes: the first relay, the second relay, third relay, the 4th relay, the 5th relay, the first limit switch, the second limit switch, third limit switch and the first control switch.The utility model can be avoided maloperation.
Description
Technical field
The utility model relates to valve control field, in particular to a kind of device for controlling electrically operated valve.
Background technique
HTGR Nuclear Power Plant is internationally recognized forth generation advanced reactor.Main waterworks that power station includes open
It is connected between shutdown unit and main steam device using pipeline, electrically operated valve is set in the pipeline between any two device,
Two devices are isolated by crossing electrically operated valve.
Referring to Fig. 1, the pressure in general pipeline is very big, so electrically operated valve includes parallel arrangement of main valve and equalizing valve
Door, usual equalizing valve door are smaller than main valve.Before main valve unlatching, the pressure of equalizing valve door balance electric valve two sides is first opened
Then power is then turned on main valve, so as to reduce the switch torque for opening main valve.Main valve closes equalizing valve after opening
Door.
In the prior art, when opening electrically operated valve, equalizing valve door, then manually opened main valve are first opened by user manually
Door, is then turned off manually equalizing valve door, user is needed repeatedly to be manually operated, and not only increases the workload of user, it is also possible to band
Carry out maloperation.
Utility model content
In order to avoid maloperation, the utility model provides a kind of device for controlling electrically operated valve.The technical solution is such as
Under:
On the one hand, the embodiment of the present application provides a kind of device for controlling electrically operated valve, and the electrically operated valve includes parallel
The main valve and equalizing valve door, described device of setting include:
First relay, the second relay, third relay, the 4th relay, the 5th relay, the first limit switch,
Second limit switch, third limit switch and the first control switch；
One group of first normally opened contact of first relay is connected on the switch power supply circuit of the main valve, and described
One group of first normally opened contact of two relays is connected on the powered-down resource loop of the main valve；One group of the third relay
First normally opened contact is connected on the switch power supply circuit of the equalizing valve door, one group of first normally opened touching of the 4th limit switch
Point is connected on the powered-down resource loop of the equalizing valve door；
First limit switch is mounted on the main valve, second limit switch and the third limit switch
It is mounted on the equalizing valve door；
One end of one normally-closed contact of first limit switch is connected with phase line, the other end and the 5th relay
One end of the first normally opened contact, one end of first control switch and the 5th relay the second normally opened contact one
End is connected；The other end of first normally opened contact of the 5th relay and the other end of first control switch with it is described
One end of first normally-closed contact of the second relay is connected；The other end of first normally-closed contact of second relay with it is described
The one end at the control point of the 5th relay is connected；The other end at the control point of the 5th relay is connected with zero curve；Described
One end of one normally opened contact of the other end and the second limit switch of the second normally opened contact of five relays is connected, and described second
The other end of one normally opened contact of limit switch is connected with the one end at the control point of first relay, first relay
The other end at the control point of device is connected with zero curve；
One end of one normally-closed contact of the third limit switch is connected with phase line, the other end and the 5th relay
One end of third normally opened contact be connected with one end of the second normally opened contact of third relay；The third of 5th relay
The other end of second normally opened contact of the other end of normally opened contact and the third relay be connected with the 4th relay the
One end of one normally-closed contact is connected；The control of the other end and the third relay of first normally-closed contact of the 4th relay
One end of system point is connected, and the other end at the control point of the third relay is connected with zero curve.
Optionally, described device further include:
Second control switch, a normally-closed contact of third limit switch described in one end of second control switch it is another
One end is connected, and the other end is connected with one end of the first normally-closed contact of the 4th relay.
Optionally, described device further include:
4th limit switch and third control switch, the 4th limit switch are mounted on the main valve；
One end of one normally-closed contact of the 4th limit switch is connected with phase line, the other end and second relay
One end of the second normally opened contact be connected with one end of the third control switch；Second normally opened contact of second relay
The other end and the other end of the third control switch be connected with one end of the first normally-closed contact of first relay；
The other end of first normally-closed contact of first relay is connected with the one end at the control point of second relay, and described
The other end at the control point of two relays is connected with zero curve.
Optionally, described device further include:
5th limit switch, the 5th limit switch are mounted on the equalizing valve door；
One end of one normally-closed contact of the 5th limit switch is connected with phase line, the other end and the 4th relay
One end of the second normally opened contact be connected with one end of the third normally opened contact of second relay；4th relay
The other end of the third normally opened contact of the other end of second normally opened contact and second relay and the third relay
One end of first normally-closed contact is connected；The other end of first normally-closed contact of the third relay and the 4th relay
The one end at control point is connected, and the other end at the control point of the 4th relay is connected with zero curve.
Optionally, further includes:
4th control switch, a normally-closed contact of one end and the 5th limit switch of the 4th control switch
The other end is connected, and the other end of the 4th control switch is connected with one end of the first normally-closed contact of the third relay.
Optionally, described device further include:
6th limit switch and the first indicator light, the 6th limit switch are mounted on the main valve, and the described 6th
One normally opened contact of limit switch is used to disconnect when the main valve does not fully open and beat completely in the main valve
Closure when opening；
One end of one normally opened contact of the 6th limit switch is connected with phase line, the other end and first indicator light
One end be connected, the other end of first indicator light is connected with zero curve.
Optionally, described device further include:
7th limit switch and the second indicator light, the 7th limit switch are mounted on the main valve, and the described 7th
One normally opened contact of limit switch is used to be closed when the main valve does not fully open and beat completely in the main valve
Disconnection when opening；
One end of one normally opened contact of the 7th limit switch is connected with phase line, the other end and second indicator light
One end be connected, the other end of second indicator light is connected with zero curve.
Optionally, described device further include:
8th limit switch and third indicator light, the 8th limit switch are mounted on the equalizing valve door, and described
One normally opened contact of eight limit switches is used to disconnect when the equalizing valve Men Wei is fully opened and in the equalizing valve door
Closure when fully opening；
One end of one normally opened contact of the 8th limit switch is connected with phase line, the other end and the third indicator light
One end be connected, the other end of the third indicator light is connected with zero curve.
Optionally, described device further include:
9th limit switch and the 4th indicator light, the 9th limit switch are mounted on the equalizing valve door, and described
One normally opened contact of nine limit switches is used to be closed when the equalizing valve Men Wei is fully opened and in the equalizing valve door
Disconnection when fully opening；
One end of one normally opened contact of the 9th limit switch is connected with phase line, the other end and the 4th indicator light
One end be connected, the other end of the 4th indicator light is connected with zero curve.
The beneficial effect of technical solution provided by the utility model is:
In the embodiment of the present application, when being opened by the first control switch control bound door of closure, which is first controlled
Equalizing valve door is opened, and after equalizing valve door fully opens, then control bound door is opened, it is only necessary to which a step is closed the first control switch
User's operation, so that it may first open equalizing valve door open main valve again, avoid maloperation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of electrically operated valve provided by the present application；
Fig. 2 is a kind of apparatus structure schematic diagram for controlling electrically operated valve provided by the embodiment of the utility model；
Fig. 3 is the apparatus structure schematic diagram of another control electrically operated valve provided by the embodiment of the utility model；
Fig. 4 is the apparatus structure schematic diagram of another control electrically operated valve provided by the embodiment of the utility model；
Fig. 5 is the apparatus structure schematic diagram of another control electrically operated valve provided by the embodiment of the utility model；
Fig. 6 is that the device of another control electrically operated valve provided by the embodiment of the utility model includes the structure of indicating section
Schematic diagram；
Fig. 7 is the apparatus structure schematic diagram of another control electrically operated valve provided by the embodiment of the utility model.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Embodiment 1
Referring to figs. 2 and 3, the embodiment of the present application provides a kind of device for controlling electrically operated valve, and referring to Fig. 1, this is electronic
Valve includes parallel arrangement of main valve and equalizing valve door, and equalizing valve door is less than main valve, which includes:
First relay A, the second relay B, third relay C, the 4th relay D, the 5th relay E, the first limit
Switch 1, the second limit switch 2, third limit switch 3 and the first control switch 4.
First limit switch 1 is mounted on main valve, and the second limit switch 2 and third limit switch 3 are mounted on equalizing valve
Men Shang.Wherein, a normally-closed contact of the first limit switch 1 is used to be closed when main valve does not fully open and in main valve
Disconnection when fully opening, a normally-closed contact of the second limit switch 2 be used to disconnect when equalizing valve Men Wei is fully opened and
The closure when equalizing valve door fully opens, a normally-closed contact of third limit switch 3 in equalizing valve Men Wei for fully opening
When closure and the disconnection when equalizing valve door fully opens.
Referring to figs. 2 and 3, the first relay A includes the first normally opened contact A1, the second normally opened contact A2, the first normally closed touching
Point A3 and control point A4.Wherein, the first relay A include three the first normally opened contact A1, respectively the first normally opened contact A11,
A12 and A13；When the control point A4 of the first relay A does not access electric current, the first normally-closed contact A3 that the first relay A includes
Closure, three the first normally opened contact A1 and the second normally opened contact A2 are disconnected；Electric current is accessed in the control point A4 of the first relay A
When, the first normally-closed contact A3 that the first relay A includes is disconnected, and three the first normally opened contact A1 and the second normally opened contact A2 are closed
It closes.
Second relay B includes the first normally opened contact B1, the second normally opened contact B2, third normally opened contact B3, first normally closed
Contact B4 and control point B5.Wherein, the second relay B includes three the first normally opened contact B1, respectively the first normally opened contact
B11, B12 and B13；When the control point B5 of the second relay B does not access electric current, the first normally closed touching that the second relay B includes
Point B4 closure, three the first normally opened contact B1, the second normally opened contact B2 and third normally opened contact B3 are disconnected；In the second relay B
Control point B5 when accessing electric current, the first normally-closed contact B4 that the second relay B includes is disconnected, three the first normally opened contact B1,
Second normally opened contact B2 and third normally opened contact B3 closure.
Third relay C includes the first normally opened contact C1, the second normally opened contact C2, the first normally-closed contact C3 and control point
C4.Wherein, third relay C includes three the first normally opened contact C1, respectively first normally opened contact C11, C12 and C13；?
When the control point C4 of two relay C does not access electric current, the first normally-closed contact C3 closure that third relay C includes, three first
Normally opened contact C1 and the second normally opened contact C2 is disconnected；When the control point C4 of third relay C accesses electric current, third relay C
Including the first normally-closed contact C3 disconnect, three the first normally opened contact C1 and the second normally opened contact C2 closure.
4th relay D includes the first normally opened contact D1, the second normally opened contact D2, the first normally-closed contact D3 and control point
D4.Wherein, third relay D includes three the first normally opened contact D1, respectively first normally opened contact D11, D12 and D13；?
When the control point D4 of four relay D does not access electric current, the first normally-closed contact D3 closure that third relay D includes, three first
Normally opened contact D1 and the second normally opened contact D2 is disconnected；When the control point D4 of the 4th relay D accesses electric current, the 4th relay D
Including the first normally-closed contact D3 disconnect, three the first normally opened contact D1 and the second normally opened contact D2 closure.
5th relay E includes the first normally opened contact E1, the second normally opened contact E2, third normally opened contact E3, first normally closed
Contact E4 and control point E5.Wherein, when the control point E5 of the 5th relay E does not access electric current, the 5th relay E include
One normally-closed contact E4 closure, the first normally opened contact E1, the second normally opened contact E2 and third normally opened contact E3 are disconnected；In the 5th relay
When the control point E5 of device E accesses electric current, the first normally-closed contact E4 that the 5th relay E includes is disconnected, the first normally opened contact E1, the
Two normally opened contact E2 and third normally opened contact E3 closure.
Referring to Fig. 3, one group of first normally opened contact A1 of the first relay A is connected on the switch power supply circuit of main valve, i.e.,
One end of the first normally opened contact A1 of first relay A is connected with phase line L, and the other end is connected with the input terminal of main valve.Second
One group of first normally opened contact B1 of relay B is connected on the powered-down resource loop of main valve, i.e., the first of the second relay B is normally opened
One end of contact B1 is connected with phase line L, and the other end is connected with the input terminal of main valve.
Wherein, referring to Fig. 3, phase line L includes the first phase line L1, the second phase line L2 and third phase line L3, and main valve includes the
One input terminal U1, the second input terminal V1 and third input terminal W1.First relay A includes three the first normally opened contact A1, respectively
For first normally opened contact A11, A12 and A13.One end of first normally opened contact A11 is connected with the first phase line L1, other end main valve
First input end U1 be connected；One end of first normally opened contact A12 is connected with the second phase line L2, and the second of the other end and main valve
Input terminal V1 is connected；One end third phase line L3 of first normally opened contact A13 is connected, the third input terminal of the other end and main valve
W1 is connected.
Second relay B includes three the first normally opened contact B2, respectively first normally opened contact B11, B12 and B13.The
One end of one normally opened contact B11 is connected with the first phase line L1, and the other end is connected with the third input terminal W1 of main valve；First is normally opened
One end of contact B12 is connected with the second phase line L2, and the other end is connected with the second input terminal V1 of main valve；First normally opened contact
One end third phase line L3 of B13 is connected, and the other end is connected with the first input end U1 of main valve.
Referring to Fig. 3, one group of first normally opened contact C1 of third relay C is connected on the switch power supply circuit of equalizing valve door,
That is one end of the first normally opened contact C1 of third relay C is connected with phase line L, and the other end is connected with the input terminal of equalizing valve door.
One group of first normally opened contact D1 of 4th limit switch D is connected on the powered-down resource loop of equalizing valve door, i.e. the 4th relay D's
One end of first normally opened contact D1 is connected with phase line L, and the other end is connected with the input terminal of equalizing valve door.
Third relay C includes three the first normally opened contact C1, respectively first normally opened contact C11, C12 and C13.The
One end of one normally opened contact C11 is connected with the first phase line L1, and the other end is connected with the first input end U2 of equalizing valve door；First often
The one end for opening contact C12 is connected with the second phase line L2, and the other end is connected with the second input terminal V2 of equalizing valve door；First normally opened touching
One end third phase line L3 of point C13 is connected, and the other end is connected with the third input terminal W2 of equalizing valve door.
4th relay D includes three the first normally opened contact D1, respectively first normally opened contact D11, D12 and D13.The
One end of one normally opened contact D11 is connected with the first phase line L1, and the other end is connected with the third input terminal W2 of equalizing valve door；First often
The one end for opening contact D12 is connected with the second phase line L2, and the other end is connected with the second input terminal V2 of equalizing valve door；First normally opened touching
One end third phase line L3 of point D13 is connected, and the other end is connected with the first input end U2 of equalizing valve door.
Referring to fig. 2, in the apparatus the circuit structure opened for control bound door is as follows, the first limit switch 1
One end of one normally-closed contact is connected with phase line L, one end of the first normally opened contact E1 of the other end and the 5th relay E, first
One end of control switch 4 is connected with one end of the second normally opened contact E2 of the 5th relay E；Wherein, phase line L can be with the first phase
Line L1, the second phase line L2 or third phase line L3.
The other end of the first normally opened contact E1 of 5th relay E and the other end of the first control switch 4 with second after
One end of the first normally-closed contact B4 of electric appliance B is connected；The other end of the first normally-closed contact B4 of second relay B and the 5th after
One end of the control point E5 of electric appliance E is connected；The other end of the control point E5 of 5th relay E is connected with zero curve N.
The one of one normally opened contact of the other end and the second limit switch 2 of the second normally opened contact E2 of the 5th relay E
End is connected, one end phase of the other end of a normally opened contact of the second limit switch 2 and the control point A4 of the first relay A
Even, the other end of the control point A4 of the first relay A is connected with zero curve N.
Referring also to Fig. 2, the circuit structure for controlling equalizing valve door opening in the apparatus is as follows, third limit switch
One end of 3 normally-closed contact is connected with phase line L, one end of the third normally opened contact E3 of the other end and the 5th relay E and
One end of the second normally opened contact C2 of third relay C is connected；The other end of the third normally opened contact E3 of 5th relay E and
The connected one end phase with the first normally-closed contact D3 of the 4th relay D of the other end of the second normally opened contact C2 of three relay C
Even；The other end of the first normally-closed contact D3 of 4th relay D is connected with one end of the control point C4 of third relay C, third
The other end of the control point C4 of relay C is connected with zero curve N.
When main valve and equalizing valve door are closed, it is only necessary to be closed the first control switch 4, then the device is first controlled and opened in advance
Valve is first opened, and control bound door is opened again after equalizing valve door fully opens.When main valve and equalizing valve door are closed, the
A normally-closed contact for one limit switch 1 and a normally-closed contact for third limit switch 3 are closed, the second limit switch
2 normally opened contact disconnects.
Detailed control process is as follows: in the first control switch 4 closure, the electric current on phase line L passes through the first limit switch
1, the first control switch 4, the second relay B the first normally-closed contact B4 be flowed into the control point E5 of the 5th relay E, the 5th after
The first normally opened contact E1, the second normally opened contact E2 and third normally opened contact E3 of electric appliance E is closed.
Electric current on phase line L passes through third limit switch 3, the third normally opened contact E3 of the 5th relay E and the 4th relay
The first normally-closed contact D3 of device D is flowed into the control point C4 of third relay C, the first normally opened contact C1 of third relay C and
Second normally opened contact C2 closure；Electric current on phase line L is flowed into equalizing valve by the first normally opened contact C1 of third relay C
Door, equalizing valve door start to open；Wherein, referring to Fig. 3, three first normally opened contacts C11, C12 and C13 of third relay C are equal
It is closed, the electric current on the first phase line L1, the second phase line L2 and third phase line L3 separately flows into the first input end of equalizing valve door
U2, the second input terminal V2 and third input terminal W2, equalizing valve door start to open.
A normally opened contact closure and third limit of the second limit switch 1 are triggered after equalizing valve door fully opens
A normally-closed contact for switch 3 disconnects, and the stopping of equalizing valve door continues to open；Wherein, equalizing valve door, which fully opens, to be pressed into
The pressing piece of second limit switch 2 and the pressing piece of third limit switch 3 make a normally opened contact for the second limit switch 2
A normally-closed contact for closure and third limit switch 3 disconnects；It is disconnected in a normally-closed contact for third limit switch 3
The control point C4 no current of third relay C flows into afterwards, three the first normally opened contact C1 and second that third relay C includes
Normally opened contact C2 is disconnected, so that the stopping of equalizing valve door continues to open.
And the electric current on phase line L is by the first limit switch 1, the second normally opened contact E2 and second of the 5th relay E
Limit switch 3 flows to the control point A4 of the first relay A, and the normally opened pass contact A 1 of the first of the first relay A is closed；On phase line L
Electric current flow to main valve by the first normally opened passs contact A 1 of the first relay A, main valve opening.Wherein, referring to Fig. 3,
Three first normally opened contacts A11, A12 and A13 of one relay A are closed, the first phase line L1, the second phase line L2 and third phase line
Electric current on L3 separately flows into the first input end U1 of main valve, the second input terminal V1 and third input terminal W1, main valve and opens
Begin to open.
Wherein, the normally-closed contact that the first limit switch 1 is triggered after main valve fully opens disconnects, and main valve stops
Continue to open.Wherein, main valve fully opens the pressing piece that can be pressed into the first limit switch 1, makes the normal of the first limit switch 1
Closed contact disconnects；The control point C4 no current of the first relay A flows into after the normally-closed contact of the first limit switch 1 disconnects, the
Three the first normally opened contact A1 that one relay A includes are disconnected, so that main valve stopping continues to open.
Wherein, in above-described embodiment mode, when being opened by closure 4 control bound door of the first control switch, the dress
It sets first control equalizing valve door to open, after equalizing valve door fully opens, then control bound door is opened, it is only necessary to step closure first
The user's operation of control switch 4, so that it may first open equalizing valve door and open main valve again, avoid maloperation.
Optionally, referring to fig. 2, the first control switch 4 includes the first switch 41, the first far-end switch 42 and first on the spot
Switching switch, the first switching switch includes first switch 43 and second switch 44；First on the spot one end of switch 41 with first limit
The other end an of normally-closed contact for bit switch 1 connects, one end of the other end and the first switch 43 in the first switching switch
Connection, first switches the other end of the first switch 43 in switch and one end company of the first normally-closed contact B4 of the second relay B
It connects；One end of first far-end switch 42 is connect with the other end of a normally-closed contact of the first limit switch 1, the other end and
One switching switch in second switch 44 one end connection, first switching switch in second switch 44 the other end and second after
One end of the first normally-closed contact B4 of electric appliance B connects.
Wherein, the disconnection second switch 44 of first switch 43 at any time in the first switching switch is closed or first cuts
The first switch 43 changed in switch is closed second switch 44 and disconnects.First switching switch in, when disconnect first switch 43, second
Switch 44 is closed, and when closure first switch 43, second switch 44 is disconnected.The is used so can switch by the first switching switch
One on the spot 41 control bound door of switch open, or by first switching switch can switch using the first far-end switch 42 control lead
Valve is opened.
Optionally, referring to fig. 2, device further include: the second control switch 5, one end of the second control switch 5 and third limit
The other end of one normally-closed contact of bit switch 3 is connected, and the one of the first normally-closed contact D3 of the other end and the 4th relay D
End is connected.
When equalizing valve door completely closes, a normally closed switch closure for third limit switch 3 at this time can be by closing
The second control switch 5 control equalizing valve door is closed to open.Control process are as follows: the electricity in the second control switch 5 closure, on phase line L
Stream flows to third relay by the first normally-closed contact D3 of third limit switch 3, the second control switch 5 and the 4th relay D
The the first normally opened contact C1 and the second normally opened contact C2 of the control point C4 of C, third relay C are closed.
Wherein three first normally opened contacts C11, C12 and C13 of third relay C are closed, the first phase line L1, the second phase
Electric current on line L2 and third phase line L3 is flowed into pre- by three first normally opened contacts C11, C12 and C13 of third relay C
The first input end U1, the second input terminal V1 and third input terminal W1 of valve are opened, equalizing valve door is opened, and equalizing valve door fully opens
One normally-closed contact of a normally opened contact closure and third limit switch 3 for triggering the second limit switch 2 afterwards disconnects.
Optionally, referring to fig. 2, the second control switch 5 includes the second switch 51, the second far-end switch 52 and second on the spot
Switching switch, the second switching switch includes first switch 53 and second switch 54；Second one end of switch 51 and third limit on the spot
The other end an of normally-closed contact for bit switch 3 connects, one end of the other end and the first switch 53 in the second switching switch
Connection, second switches the other end of the first switch 53 in switch and one end company of the first normally-closed contact D3 of the 4th relay D
It connects；The other end of one normally-closed contact of one end and third limit switch 3 of the second far-end switch 52 is connect, the other end and
Two switching switch in second switch 54 one end connection, second switching switch in second switch 54 the other end and the 4th after
One end of the first normally-closed contact D3 of electric appliance D connects.
Wherein, the disconnection second switch 54 of first switch 53 at any time in the second switching switch is closed or second cuts
The first switch 53 changed in switch is closed second switch 54 and disconnects.Second switching switch in, when disconnect first switch 53, second
Switch 54 is closed, and when closure first switch 53, second switch 54 is disconnected.The is used so can switch by the second switching switch
Two on the spot switch 51 control equalizing valve door open, or by second switching switch can switch using the second far-end switch 52 control
Equalizing valve door is opened.
Optionally, referring to fig. 4, the device further include:
4th limit switch 6 and third control switch 7, the 4th limit switch 6 are mounted on main valve, the 4th limit switch
One end of 6 normally-closed contact is connected with phase line L, one end of the second normally opened contact B2 of the other end and the second relay B and
One end of third control switch 7 is connected；The other end of the second normally opened contact B2 of second relay B and third control switch 7
The other end is connected with one end of the first normally-closed contact A3 of the first relay A；The first normally-closed contact A3 of first relay A
The other end be connected with one end of the control point B5 of the second relay B, the other end and zero curve of the control point B5 of the second relay B
N is connected.
The normally-closed contact of 4th limit switch 6 is used for the closure when main valve does not fully open, fully opens in main valve
When disconnect.Current main valve fully opens, so the normally-closed contact of the 4th limit switch 6 is closure, the first limit switch 1
Normally-closed contact is to disconnect.User can be closed the closing of 7 control bound door of third control switch, detailed to cross kind are as follows:
When third control switch 7 is closed, the electric current on phase line L passes through the 4th limit switch 6,7 and of third control switch
The first normally-closed contact A3 of first relay A flows to the control point B5 of the second relay B, the first normally opened touching of the second relay B
The first normally-closed contact B4 of point B1 and the second normally opened contact B2 closure and the second relay B are disconnected；Electric current on phase line L in this way
It is flowed into main valve by the first normally opened contact B1 of the second relay B, main valve is begun to shut off, that is, the first phase line L1,
Electric current on second phase line L2 and third phase line L3 passes through first normally opened contact B11, B12 and B13 stream of the second relay B respectively
Enter to main valve third input terminal W1, the second input terminal V1 and third input terminal U1, main valve and begins to shut off.
When the control point B5 of second relay B is powered, the first normally-closed contact B4 of the second relay B is disconnected, and is led closing
The when marquis of valve will not open main valve, avoid maloperation even if user misoperation is closed the first control switch 4.
When main valve completely closes, the pressing piece of the first limit switch 1 can bounce automatically, make the first limit switch 1
Normally-closed contact closure, main valve triggers the 4th limit switch 6 normally-closed contact after being closed completely disconnect, i.e., can press the 4th limit
The pressing piece of switch 6 disconnects the normally-closed contact of the 4th limit switch 6, the first normally opened contact B1 that the second relay B includes and
Second normally opened contact B2 is disconnected, the first normally-closed contact B4 closure.
Optionally, referring to fig. 4, third control switch 7 includes third switch 71, third far-end switch 72 and third on the spot
Switching switch, third switching switch includes first switch 73 and second switch 74；One end of switch 71 limits third with the 4th on the spot
The other end an of normally-closed contact for bit switch 6 connects, one end of the other end and the first switch 73 in third switching switch
Connection, third switches the other end of the first switch 73 in switch and one end of the first normally-closed contact A3 of the first relay A connects
It connects；One end of third far-end switch 72 is connect with the other end of a normally-closed contact of the 4th limit switch 6, the other end and
Three switching switch in second switch 74 one end connection, third switching switch in second switch 74 the other end and first after
One end of the first normally-closed contact A3 of electric appliance A connects.
Wherein, the disconnection second switch 74 of first switch 73 at any time in the second switching switch is closed or second cuts
The first switch 73 changed in switch is closed second switch 74 and disconnects.Second switching switch in, when disconnect first switch 73, second
Switch 74 is closed, and when closure first switch 73, second switch 74 is disconnected.The is used so can switch by third switching switch
Three on the spot switch 71 control equalizing valve door open, or by third switching switch can switch using third far-end switch 72 control
Equalizing valve door is opened.
Optionally, referring to Fig. 5, the device further include:
5th limit switch 8, the 5th limit switch 8 are mounted on equalizing valve door, a normally closed touching of the 5th limit switch 8
One end of point is connected with phase line L, one end of the second normally opened contact D2 of the other end and the 4th relay D and the second relay B's
One end of third normally opened contact B3 is connected；
The third normally opened contact B3's of the other end and the second relay B of the second normally opened contact D2 of 4th relay D is another
One end is connected with one end of the first normally-closed contact C3 of third relay C；The first normally-closed contact C3's of third relay C is another
One end is connected with one end of the control point D4 of the 4th relay D, the other end and the zero curve N phase of the control point D4 of the 4th relay D
Even.
After being closed third control switch 7, when the control point B5 of the second relay B is powered, the first of the second relay B
Normally opened contact B1, the second normally opened contact B2 and third normally opened contact B3 closure, the first normally-closed contact B4 are disconnected.Phase line L at this time
Electric current is by the 5th limit switch 8, the first normally-closed contact of the third normally opened contact B3 of the second relay B and third relay C
C3 is flowed into the control point D4 of the 4th relay D, and the first normally opened contact D1 and the second normally opened contact D2 of the 4th relay D is closed
It closes, the first normally-closed contact D3 of the 4th relay D is disconnected.Electric current on phase line L in this way is first normally opened by the 4th relay D's
Contact D1 is flowed into equalizing valve door, and equalizing valve door is begun to shut off, that is, the first phase line L1, the second phase line L2 and third phase line
It is defeated that first normally opened contact D11, D12 and D13 that electric current on L3 passes through the 4th relay D respectively is flowed into the equalizing valve family status three
Enter to hold W2, the second input terminal V2 and third input terminal U2, equalizing valve door to begin to shut off.It realizes when closing main valve, closes simultaneously
Close equalizing valve door.
When equalizing valve door completely closes, the pressing piece of the pressing piece of third limit switch 3 and the second limit switch 2 can be certainly
It has been moved that, be closed the normally-closed contact of third limit switch 3, and disconnected the normally opened contact of the second limit switch 2, opened in advance
Valve triggers the 5th limit switch 8 normally-closed contact after being closed completely disconnects, i.e., equalizing valve door can press the 5th limit switch 8
Pressing piece disconnects the normally-closed contact of the 5th limit switch 8, and the first normally opened contact D1 and second that the 4th relay D includes is normal
Open contact D2 disconnection, the first normally-closed contact D3 closure.
It optionally, can also include: the 4th control switch 9 referring to Fig. 5, the 4th control switch 9 switchs on the spot including the 4th
91, the 4th far-end switch 92 and the 4th switching switch, the 4th switching switch includes first switch 93 and second switch 94；4th
One end of switch 91 is connect with the other end of a normally-closed contact of the 5th limit switch 8 on the spot, the other end and the 4th switching
One end of first switch 93 in switch connects, the other end and third relay C of the first switch 93 in the 4th switching switch
The first normally-closed contact C3 one end connection；One end of 4th far-end switch 92 and a normally closed touching for the 5th limit switch 8
The other end connection of point, the other end is connect with one end of the second switch 94 in the 4th switching switch, in the 4th switching switch
The other end of second switch 94 is connect with one end of the first normally-closed contact C3 of third relay C.
Wherein, the disconnection second switch 94 of first switch 93 at any time in the 4th switching switch is closed or second cuts
The first switch 93 changed in switch is closed second switch 94 and disconnects.The 4th switching switch in, when disconnect first switch 93, second
Switch 974 is closed, and when closure first switch 93, second switch 94 is disconnected.So use can be switched by the 4th switching switch
4th control of switch 91 equalizing valve door closing on the spot, or can be switched by the 4th switching switch and be controlled using the 4th far-end switch 92
Equalizing valve door processed is closed.
When the control point D4 of 4th relay D is powered, the first normally-closed contact D3 of the 4th relay D is disconnected, pre- closing
The when marquis of valve is opened, even if user misoperation is closed the second control switch 5, equalizing valve door will not be opened, maloperation is avoided to send out
It is raw.
Referring to Fig. 6, the device further include:
6th limit switch 10 and the first indicator light 11, the 6th limit switch 10 are mounted on main valve, and the 6th limit is opened
The one end for closing 10 normally opened contact is connected with phase line L, and the other end is connected with one end of the first indicator light 11, the first indicator light 11
The other end be connected with zero curve.
Wherein, the normally opened contact of the 6th limit switch 10 closure when main valve fully opens, the at this time electricity on phase line L
Stream is flowed into the first indicator light 11 by the 6th limit switch 10, and the first indicator light 11 is lighted, when main valve does not fully open
It disconnects, the first indicator light 11 extinguishes at this time, realizes with whether the first indicator light 11 instruction main valve is opened.
Wherein, the pressing piece on the 6th limit switch 10 can be pressed when main valve fully opens, and make the 6th limit switch 10
Normally opened contact closure.Main valve can unclamp the pressing piece on the 6th limit switch 10, the 6th limit switch 10 when beginning to shut off
Normally opened contact disconnect.
Referring to Fig. 6, the device further include:
7th limit switch 12 and the second indicator light 13, the 7th limit switch 12 are mounted on main valve, and the 7th limit is opened
Normally opened contact one end for pass 12 is connected with phase line L, and the other end is connected with one end of the second indicator light 13, the second indicator light 13
The other end be connected with zero curve N.
Wherein, the normally opened contact of the 7th limit switch 12 closure when main valve completely closes, the at this time electricity on phase line L
Stream is flowed into the second indicator light 13 by the 7th limit switch 12, and the second indicator light 13 is lighted, when main valve does not completely close
It disconnects, the second indicator light 13 extinguishes at this time, realizes with whether the second indicator light 13 instruction main valve closes.
Wherein, the pressing piece on the 7th limit switch 12 can be pressed when main valve completely closes, and make the 7th limit switch 12
Normally opened contact closure.Main valve can unclamp the pressing piece on the 7th limit switch 13, the 7th limit switch 13 when starting to open
Normally opened contact disconnect.
Referring to Fig. 6, the device further include:
8th limit switch 14 and third indicator light 15, the 8th limit switch 14 are mounted on equalizing valve door, the 8th limit
One end of one normally opened contact of switch 14 is connected with phase line L, and the other end is connected with one end of third indicator light 15, and third refers to
Show that the other end of lamp 15 is connected with zero curve N.
Wherein, the normally opened contact of the 8th limit switch 14 closure when equalizing valve door fully opens, at this time on phase line L
Electric current is flowed into third indicator light 15 by the 8th limit switch 14, and third indicator light 15 is lighted, and is not beaten completely in equalizing valve door
Disconnection when opening, third indicator light 15 extinguishes at this time, and realization indicates whether equalizing valve door is opened with third indicator light 15.
Wherein, the pressing piece on the 8th limit switch 14 can be pressed when equalizing valve door fully opens, and make the 8th limit switch
14 normally opened contact closure.Equalizing valve door can unclamp the pressing piece on the 8th limit switch 14 when beginning to shut off, the 8th limit is opened
Close 14 normally opened contact disconnection.
Referring to Fig. 6, the device further include:
9th limit switch 16 and the 4th indicator light 17, the 9th limit switch 16 are mounted on equalizing valve door, the 9th limit
One end of the normally opened contact of switch 16 is connected with phase line L, and the other end is connected with one end of the 4th indicator light 17, the 4th indicator light 17
The other end be connected with zero curve N.
Wherein, the normally opened contact of the 9th limit switch 16 closure when equalizing valve door completely closes, at this time on phase line L
Electric current is flowed into the 4th indicator light 17 by the 9th limit switch 16, and the 4th indicator light 17 is lighted, and is not closed completely in equalizing valve door
It is disconnected when conjunction, the 4th indicator light 17 extinguishes at this time, realizes with whether the 4th indicator light 17 instruction equalizing valve door closes.
Wherein, the pressing piece on the 8th limit switch 17 can be pressed when equalizing valve door completely closes, and make the 8th limit switch
17 normally opened contact closure.Equalizing valve door can unclamp the pressing piece on the 8th limit switch 17 when starting to open, the 8th limit is opened
Close 17 normally opened contact disconnection.
Optionally, referring to Fig. 7, which can also include: the first master switch 21, the second master switch 22, third master switch
23 and the 4th master switch 24.
One end of first master switch 21 is connected with phase line L, a normally-closed contact for the other end and the first limit switch 1
One end connection；One end of second master switch 22 is connected with phase line L, a normally-closed contact for the other end and third limit switch 3
One end connection；One end of third master switch 23 is connected with phase line L, a normally closed touching for the other end and the 4th limit switch 6
One end connection of point；One end of 4th master switch 24 is connected with phase line L, and this of the other end and the 5th limit switch 8 is normally closed
One end of contact connects.
In the embodiment of the present application, when being opened by the first control switch control bound door of closure, which is first controlled
Equalizing valve door is opened, and after equalizing valve door fully opens, then control bound door is opened, it is only necessary to which a step is closed the first control switch
User's operation, so that it may first open equalizing valve door open main valve again, avoid maloperation.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of device for controlling electrically operated valve, which is characterized in that the electrically operated valve includes parallel arrangement of main valve and pre-
Valve is opened, described device includes:
First relay, the second relay, third relay, the 4th relay, the 5th relay, the first limit switch, second
Limit switch, third limit switch, the 4th limit switch and the first control switch；
One group of first normally opened contact of first relay is connected on the switch power supply circuit of the main valve, described second after
One group of first normally opened contact of electric appliance is connected on the powered-down resource loop of the main valve；One group first of the third relay
Normally opened contact is connected on the switch power supply circuit of the equalizing valve door, one group of first normally opened contact string of the 4th limit switch
It is associated on the powered-down resource loop of the equalizing valve door；
First limit switch is mounted on the main valve, second limit switch and third limit switch installation
On the equalizing valve door；
One end of one normally-closed contact of first limit switch is connected with phase line, and the of the other end and the 5th relay
One end phase of second normally opened contact of one end of one normally opened contact, one end of first control switch and the 5th relay
Even；The other end of first normally opened contact of the 5th relay and the other end of first control switch are with described second
One end of first normally-closed contact of relay is connected；The other end of first normally-closed contact of second relay and the described 5th
The one end at the control point of relay is connected；The other end at the control point of the 5th relay is connected with zero curve；Described 5th after
One end of one normally opened contact of the other end and the second limit switch of the second normally opened contact of electric appliance is connected, second limit
The other end of one normally opened contact of switch is connected with the one end at the control point of first relay, first relay
The other end at control point is connected with zero curve；
One end of one normally-closed contact of the third limit switch is connected with phase line, and the of the other end and the 5th relay
One end of three normally opened contacts is connected with one end of the second normally opened contact of third relay；The third of 5th relay is normally opened
The other end of second normally opened contact of the other end of contact and the third relay is connected normal with the first of the 4th relay
One end of closed contact is connected；The other end of first normally-closed contact of the 4th relay and the control point of the third relay
One end be connected, the other end at the control point of the third relay is connected with zero curve.
2. device as described in claim 1, which is characterized in that described device further include:
Second control switch, the other end of a normally-closed contact of third limit switch described in one end of second control switch
It is connected, the other end is connected with one end of the first normally-closed contact of the 4th relay.
3. device as described in claim 1, which is characterized in that described device further include:
4th limit switch and third control switch, the 4th limit switch are mounted on the main valve；
One end of one normally-closed contact of the 4th limit switch is connected with phase line, and the of the other end and second relay
One end of two normally opened contacts is connected with one end of the third control switch；Second normally opened contact of second relay it is another
The other end of one end and the third control switch is connected with one end of the first normally-closed contact of first relay；It is described
The other end of first normally-closed contact of the first relay is connected with the one end at the control point of second relay, described second after
The other end at the control point of electric appliance is connected with zero curve.
4. device as described in claim 1, which is characterized in that described device further include:
5th limit switch, the 5th limit switch are mounted on the equalizing valve door；
One end of one normally-closed contact of the 5th limit switch is connected with phase line, and the of the other end and the 4th relay
One end of two normally opened contacts is connected with one end of the third normally opened contact of second relay；The second of 4th relay
The other end of the third normally opened contact of the other end of normally opened contact and second relay and the first of the third relay
One end of normally-closed contact is connected；The control of the other end of first normally-closed contact of the third relay and the 4th relay
One end of point is connected, and the other end at the control point of the 4th relay is connected with zero curve.
5. device as claimed in claim 4, which is characterized in that further include:
4th control switch, one end of the 4th control switch are another with a normally-closed contact of the 5th limit switch
End is connected, and the other end of the 4th control switch is connected with one end of the first normally-closed contact of the third relay.
6. device as described in claim 1, which is characterized in that described device further include:
6th limit switch and the first indicator light, the 6th limit switch are mounted on the main valve, the 6th limit
One normally opened contact of switch is used to disconnect when the main valve does not fully open and when the main valve fully opens
Closure；
One end of one normally opened contact of the 6th limit switch is connected with phase line, and the one of the other end and first indicator light
End is connected, and the other end of first indicator light is connected with zero curve.
7. device as described in claim 1, which is characterized in that described device further include:
7th limit switch and the second indicator light, the 7th limit switch are mounted on the main valve, the 7th limit
One normally opened contact of switch is used to be closed when the main valve does not fully open and when the main valve fully opens
It disconnects；
One end of one normally opened contact of the 7th limit switch is connected with phase line, and the one of the other end and second indicator light
End is connected, and the other end of second indicator light is connected with zero curve.
8. device as described in claim 1, which is characterized in that described device further include:
8th limit switch and third indicator light, the 8th limit switch are mounted on the equalizing valve door, the 8th limit
One normally opened contact of bit switch be used for when the equalizing valve Men Wei is fully opened disconnect and it is complete in the equalizing valve door
It is closed when opening；
One end of one normally opened contact of the 8th limit switch is connected with phase line, and the one of the other end and the third indicator light
End is connected, and the other end of the third indicator light is connected with zero curve.
9. device as described in claim 1, which is characterized in that described device further include:
9th limit switch and the 4th indicator light, the 9th limit switch are mounted on the equalizing valve door, the 9th limit
One normally opened contact of bit switch be used for when the equalizing valve Men Wei is fully opened closure and it is complete in the equalizing valve door
It is disconnected when opening；
One end of one normally opened contact of the 9th limit switch is connected with phase line, and the one of the other end and the 4th indicator light
End is connected, and the other end of the 4th indicator light is connected with zero curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492304.4U CN209325141U (en) | 2018-09-12 | 2018-09-12 | A kind of device controlling electrically operated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492304.4U CN209325141U (en) | 2018-09-12 | 2018-09-12 | A kind of device controlling electrically operated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209325141U true CN209325141U (en) | 2019-08-30 |
Family
ID=67706824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821492304.4U Active CN209325141U (en) | 2018-09-12 | 2018-09-12 | A kind of device controlling electrically operated valve |
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| Country | Link |
|---|---|
| CN (1) | CN209325141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611311A (en) * | 2019-09-26 | 2019-12-24 | 国核电力规划设计研究院有限公司 | Power distribution method and device for electric valve |
-
2018
- 2018-09-12 CN CN201821492304.4U patent/CN209325141U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611311A (en) * | 2019-09-26 | 2019-12-24 | 国核电力规划设计研究院有限公司 | Power distribution method and device for electric valve |
| CN110611311B (en) * | 2019-09-26 | 2020-11-24 | 国核电力规划设计研究院有限公司 | Power distribution method and device for electric valve |
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