CN208220965U - A kind of power loss shutoff control unit - Google Patents
A kind of power loss shutoff control unit Download PDFInfo
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- CN208220965U CN208220965U CN201820074386.4U CN201820074386U CN208220965U CN 208220965 U CN208220965 U CN 208220965U CN 201820074386 U CN201820074386 U CN 201820074386U CN 208220965 U CN208220965 U CN 208220965U
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- valve
- power loss
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- power
- hydraulic operated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model discloses a kind of power loss shutoff control units, control section is closed including control section and power loss must be electrically turn off, it includes that sequentially connected power loss operating valve A, power loss cut off valve, power loss interstage valve, tightly stop hydraulic operated valve B in a series arrangement that power loss, which closes control section,；The input port of power loss operating valve A is connect with pressure oil, must be electrically turn off control section and be included sequentially connected tight power failure magnet valve, tightly stops hydraulic operated valve A；The input port of tight power failure magnet valve is connect with pressure oil, the X1 chamber that two delivery outlets of tight power failure magnet valve stop hydraulic operated valve A with the input port of power loss interstage valve and tightly respectively is connected to, the input port for tightly stopping hydraulic operated valve A is connected with main control valve control chamber, main control valve and guide vane servomotor phase configuration.The utility model power loss, which closes control system, to be formed using the standard hydraulic components of various functions；Power loss closes oil circuit and must be electrically turn off oil circuit using series system, and any oil circuit movement can all make water turbine set emergency cut-off, securely and reliably.
Description
Technical field
The utility model relates to a kind of power loss shutoff control units, are mainly used for turbine-generator units.
Background technique
Because it is existing newly build a power station all be built by the design concept of " unattended, few man on duty ", so to governor can
There is higher requirement by property and regulation quality and the safety in power station also has higher requirement under the extreme condition that happens suddenly.Former governor
Corresponding security control can only be carried out to turbine-generator units in the case where there is power supply in power station, if but power station AC and DC power supply it is same
When disappearing governor will be unable to auto-control water-wheel generator group, power plant safety is unable to get guarantee.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of peace in view of the deficiency of the prior art
Complete reliable power loss shutoff control unit.
The technology employed by the present utility model is a kind of power loss shutoff control unit, including control unit must be electrically turn off
Divide and power loss closes control section, it is characterised in that: power loss closes control section and includes sequentially connected power loss in a series arrangement
Operating valve A, power loss excision valve, power loss interstage valve, tightly stop hydraulic operated valve B；The input port of power loss operating valve A is connect with pressure oil, is lost
The delivery outlet of electric operating valve A is connected by power loss excision valve with the X chamber of power loss interstage valve, two delivery outlets of power loss interstage valve and master
Distributing valve guiding valve is connected to the X2 chamber for tightly stopping hydraulic operated valve B, and the input port for tightly stopping hydraulic operated valve B is connected with main control valve control chamber,
Control section must be electrically turn off to include sequentially connected tight power failure magnet valve, tightly stop hydraulic operated valve A；The input port of tight power failure magnet valve and pressure
Oil connection, the X1 chamber that two delivery outlets of tight power failure magnet valve stop hydraulic operated valve A with the input port of power loss interstage valve and tightly respectively are connected to, tightly
The input port for stopping hydraulic operated valve A is connected with main control valve control chamber, main control valve and guide vane servomotor phase configuration.
According to the above technical scheme, it further includes power loss operating valve B that the power loss, which closes control section, is serially connected in power loss movement
Between valve A and power loss excision valve.
According to the above technical scheme, the power loss excision valve is the manual solenoid valve of two-position four-way.
According to the above technical scheme, the power loss interstage valve is two-position four-way solenoid directional control valve.
According to the above technical scheme, described tightly to stop hydraulic operated valve A and tightly stop hydraulic operated valve B to be bi-bit bi-pass reversal valve.
According to the above technical scheme, the tight power failure magnet valve is two-position four way change valve.
According to the above technical scheme, power loss excision valve, power loss operating valve B, power loss operating valve A, in tight power failure magnet valve, each valve is
Any one of solenoid directional control valve, Solenoid ball valve, proportioning valve, proportional servo valve, servo valve.
It is had the beneficial effect that acquired by the utility model
1, the utility model power loss, which closes control system, is formed using the standard hydraulic components of various functions；Power loss closes oil
Road uses series system with that must be electrically turn off oil circuit, and any oil circuit movement can all make water turbine set emergency cut-off, securely and reliably.
2, function is more complete: having to obtain electric emergency cutoff function, power loss emergency cutoff function, manually excision function, improper dynamic
Make fault-tolerant function (i.e. when power loss operating valve A coil burnout or signal wire failure cause its improper movement, and or when power loss acts
Valve B coil burnout or signal wire failure cause its improper movement, not will cause turbine-generator units and miss emergency cutoff), and
There is signal output function.
3, structure is simple, is easily installed, adjusts, safeguarding, reducing production and processing amount and period and reduce cost.Due to use
It is standard hydraulic components, volume greatly reduces, and leakage is also minimum, can reduce the number of starts of oil gear oil pump, extends oil pump
Service life.
Detailed description of the invention
Fig. 1 is the machinery hydraulic system schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, present embodiments providing a kind of power loss shutoff control unit, including control section and mistake must be electrically turn off
It is electrically turn off control section, power loss closes control section and uses each valve member series system, including sequentially connected power loss operating valve A6,
Power loss operating valve B5, power loss excision valve 3, power loss interstage valve 2, tightly stop hydraulic operated valve B1；The input port of power loss operating valve A6 and pressure
Oil connection, the delivery outlet of power loss operating valve A6 cut off the X chamber phase of valve 3 and power loss interstage valve 2 by power loss operating valve B5, power loss
Even, the input port of power loss interstage valve 2 connect with the output all the way of tight power failure magnet valve 7, two delivery outlets of power loss interstage valve 2 respectively with
Main control valve guiding valve is connected to the X2 chamber for tightly stopping hydraulic operated valve B1, tightly stops input port and the main control valve control chamber phase of hydraulic operated valve B1
Even.
The control section that must be electrically turn off includes sequentially connected tight power failure magnet valve 7, tightly stops hydraulic operated valve A4；Tight power failure magnetic
The input port of valve 7 is connect with pressure oil, and two delivery outlets of tight power failure magnet valve 7 stop with the input port of power loss interstage valve 2 and tightly respectively
The X1 chamber of hydraulic operated valve A4 is connected to, and the input port for tightly stopping hydraulic operated valve A4 is connected with main control valve control chamber.
Wherein, described tightly to stop hydraulic operated valve A4 and tightly stop hydraulic operated valve B1 to be bi-bit bi-pass reversal valve.The power loss interstage valve 2
For two-position four-way solenoid directional control valve.The power loss excision valve 3 is the manual solenoid valve of two-position four-way.The power loss operating valve A6 and mistake
Electric operating valve B5 is two-position three way magnetic valve.The tight power failure magnet valve 7 is two-position four way change valve.
Power loss operating valve A6, power loss operating valve B5 and tight power failure magnet valve 7 can realize turbine-generator units emergency cutoff, protection
Turbine-generator units are not damaged.
Pressure oil is matched after the P mouth of tight power failure magnet valve 7 and A mouthfuls to the P1 mouth of power loss interstage valve 2 and A1 mouthfuls with master under normality
Pressure valve guiding valve is connected.The tight B2 mouth for stopping the B3 mouth of hydraulic operated valve B1 and tightly stopping hydraulic operated valve A4 is connected with main control valve control chamber.
When the non-power loss in power station (power supply does not disappear) needs emergency shutdown: tight power failure magnet valve 7 receives microcomputer and tightly stops signalizing activity,
Pressure oil, to the X1 mouth for tightly stopping hydraulic operated valve A4, makes the oil liquid of main control valve control chamber tightly be stopped the B2 of hydraulic operated valve A4 through P mouthfuls and B mouthfuls
Mouthful and T5 mouthful to oil return box, and pass through the oil liquid of main control valve guiding valve again after the A1 of power loss interstage valve 2 mouth with P1 mouthfuls and tightly stopped
The A mouth of solenoid valve 7, to oil return box, realizes to obtain electric emergency shutdown with T mouthfuls.
When power station power loss (AC and DC power supply disappears simultaneously): power loss operating valve A6 and power loss operating valve B5 while dynamic
Make, pressure oil enters the X mouth of power loss interstage valve 2 through P2 mouthfuls and A2 mouthfuls to P3 mouthfuls and A3 mouthfuls, P4 mouthfuls and A4 mouthfuls, makes power loss interstage valve
2 movements, the oil liquid of main control valve guiding valve make main control valve control through the A1 of power loss interstage valve 2 mouth and T1 mouthfuls to oil return box
The oil liquid of chamber tightly stopped hydraulic operated valve B1 B3 mouth and T6 mouthful to oil return box, realization power loss emergency shutdown.
When the disappearance of power station alternating current or power loss operating valve A6 coil burnout or signal wire failure, there are signal output and power loss
Interstage valve 2 will not act, so that turbine-generator units be avoided to miss emergency cutoff.
When the disappearance of power station direct galvanic electricity or power loss operating valve B5 coil burnout or signal wire failure, there are signal output and power loss
Interstage valve 2 will not act, so that turbine-generator units be avoided to miss emergency cutoff.
When power station equipment repair and maintenance, manual switching power loss cuts off valve 3, makes the P4 mouth of power loss excision valve 3 to B4 mouthfuls, A4
Mouthful to T4 mouthful, whether no matter AC DC electric disappears at this time, turbine-generator units all will not power loss closing, equipment can be normally carried out
Repair and maintenance.
The utility model has to obtain electric emergency cutoff function, power loss emergency cutoff function, manually excision function, improper movement
Fault-tolerant function (i.e. when power loss operating valve A coil burnout or signal wire failure cause its improper movement, and or works as power loss operating valve
B coil burnout or signal wire failure cause its improper movement, not will cause turbine-generator units and miss emergency cutoff), and have
Signal output function.
The utility model solenoid valve (such as power loss excision valve 3, power loss operating valve B5, power loss operating valve A6, tightly have a power failure magnetic
Valve 7) using solenoid directional control valve, it can also be using Solenoid ball valve, proportioning valve, proportional servo valve, servo valve etc..
Claims (8)
1. a kind of power loss shutoff control unit, including control section and power loss closing control section must be electrically turn off, it is characterised in that:
It includes sequentially connected power loss operating valve A (6), power loss excision valve (3), power loss linkage in a series arrangement that power loss, which closes control section,
Valve (2) tightly stops hydraulic operated valve B (1)；The input port of power loss operating valve A (6) is connect with pressure oil, the output of power loss operating valve A (6)
Mouth is connected by power loss excision valve (3) with the X chamber of power loss interstage valve (2), two delivery outlets and main control valve of power loss interstage valve (2)
Guiding valve is connected to the X2 chamber for tightly stopping hydraulic operated valve B (1), and the input port for tightly stopping hydraulic operated valve B (1) is connected with main control valve control chamber,
Control section must be electrically turn off to include sequentially connected tight power failure magnet valve (7), tightly stop hydraulic operated valve A (4)；Tightly power failure magnet valve (7) is defeated
Entrance is connect with pressure oil, and tightly two delivery outlets of power failure magnet valve (7) stop surging with the input port of power loss interstage valve (2) and tightly respectively
The X1 chamber of valve A (4) is connected to, and the input port for tightly stopping hydraulic operated valve A (4) is connected with main control valve control chamber, and main control valve connects with guide vane
Power device phase configuration.
2. power loss shutoff control unit according to claim 1, it is characterised in that: the power loss is closed control section and also wrapped
Power loss operating valve B (5) is included, is serially connected between power loss operating valve A (6) and power loss excision valve (3).
3. power loss shutoff control unit according to claim 2, it is characterised in that: the power loss operating valve A (6) and power loss
Operating valve B (5) is two position three-way valve.
4. power loss shutoff control unit according to claim 2, it is characterised in that: power loss excision valve (3) is two
Four-way hand-operated valve.
5. power loss shutoff control unit according to claim 2, it is characterised in that: the power loss interstage valve (2) is two
Four-way electromagnetic reversing valve.
6. power loss shutoff control unit according to claim 2, it is characterised in that: described tightly to stop hydraulic operated valve A (4) and tightly stop
Hydraulic operated valve B (1) is bi-bit bi-pass reversal valve.
7. power loss shutoff control unit according to claim 2, it is characterised in that: the tight power failure magnet valve (7) is two
Four-way reversing valve.
8. according to power loss shutoff control unit described in claim 3 or 4 or 5 or 6 or 7, it is characterised in that: power loss cuts off valve
(3), power loss operating valve B (5), power loss operating valve A (6), tightly in power failure magnet valve (7), each valve be solenoid directional control valve, Solenoid ball valve,
Any one of proportioning valve, proportional servo valve, servo valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074386.4U CN208220965U (en) | 2018-01-17 | 2018-01-17 | A kind of power loss shutoff control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074386.4U CN208220965U (en) | 2018-01-17 | 2018-01-17 | A kind of power loss shutoff control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208220965U true CN208220965U (en) | 2018-12-11 |
Family
ID=64533440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820074386.4U Active CN208220965U (en) | 2018-01-17 | 2018-01-17 | A kind of power loss shutoff control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208220965U (en) |
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2018
- 2018-01-17 CN CN201820074386.4U patent/CN208220965U/en active Active
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