CN206862632U - A kind of novel steam turbine oil spout experimental rig - Google Patents
A kind of novel steam turbine oil spout experimental rig Download PDFInfo
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- CN206862632U CN206862632U CN201720372581.0U CN201720372581U CN206862632U CN 206862632 U CN206862632 U CN 206862632U CN 201720372581 U CN201720372581 U CN 201720372581U CN 206862632 U CN206862632 U CN 206862632U
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Abstract
The utility model discloses a kind of novel steam turbine oil spout experimental rig, the main oil pump connects magnetic valve, emergency trip pilot valve left end and hangs lock magnetic valve respectively；The extension lock magnetic valve connection emergency trip pilot valve right-hand member；The magnetic valve connects 1 and No. 2 pressure switch respectively；1 and No. 2 pressure switch connects 1 and No. 2 solenoid fuel injection valve respectively；1 and No. 2 solenoid fuel injection valve connects 1 and No. 2 flyball respectively；Emergency governor, overspeed governor is installed above 1 and No. 2 flyball to re-pack；The emergency governor, overspeed governor is provided with emergency trip pilot valve below re-packing；The emergency trip pilot valve right-hand member is provided with emergency trip pilot valve unloading port, and emergency trip pilot valve right-hand member is connected to pressure detection switch and diaphragm valve；Isolating valve is installed on the left of the diaphragm valve；Steam turbine EH fuel tanks are installed on the right side of the diaphragm valve；EH systems of steam turbines high-pressure oil pipe is connected with the left of the isolating valve.The beneficial effects of the utility model are that success of the test rate is high.
Description
Technical field
It the utility model is related to turbine emergency safety technique field, more particularly to a kind of novel steam turbine oil spout experiment dress
Put.
Background technology
When Thermal Power Station's 200MW steam turbines carry out emergency overspeed governor oil spout experiment, because of displacement detecting element quality or peace
The reasons such as technique are filled, often flyball can not be normally caught and hit signal, cause oil spout success of the test rate relatively low, it is impossible to judge machinery
Whether hypervelocity device can securely and reliably act.Therefore, in view of the above, a kind of oil spout success of the test rate of can improving of invention
Novel steam turbine oil spout experimental rig is that those skilled in the art need to solve the problems, such as.
Utility model content
For disadvantages described above, the utility model provides a kind of stable performance, oil spout success of the test rate high novel steam turbine
Oil spout experimental rig, to solve many deficiencies of prior art.
To achieve the above object, the utility model uses following technical scheme：
A kind of novel steam turbine oil spout experimental rig, including diaphragm valve, main oil pump, magnetic valve, No. 1 pressure switch, No. 1 spray
Solenoid, No. 1 flyball, emergency governor, overspeed governor re-pack, No. 2 pressure switches, No. 2 solenoid fuel injection valves, No. 2 flyballs, emergency governor, overspeed governors
Guiding valve unloading port, emergency trip pilot valve, pressure detection switch, extension lock magnetic valve, low-voltage variation system safety oil passageway, steam turbine
EH system high pressures oil pipe, steam turbine EH fuel tanks and power output shaft, the power output shaft are sequentially connected main oil pump, No. 1 flyball
With No. 2 flyballs；The main oil pump connects magnetic valve, emergency trip pilot valve left end respectively by low-voltage variation system safety oil passageway
With extension lock magnetic valve；The extension lock magnetic valve connection emergency trip pilot valve right-hand member；The magnetic valve connects No. 1 pressure and opened respectively
Close and No. 2 pressure switches；No. 1 pressure switch and No. 2 pressure switches connect No. 1 solenoid fuel injection valve and No. 2 oil spout electricity respectively
Magnet valve；No. 1 solenoid fuel injection valve and No. 2 solenoid fuel injection valves connect No. 1 flyball and No. 2 flyballs respectively；No. 1 flyball and 2
Emergency governor, overspeed governor is installed above number flyball to re-pack；The emergency governor, overspeed governor is provided with emergency trip pilot valve below re-packing；Institute
State emergency trip pilot valve right-hand member and emergency trip pilot valve unloading port is installed；The emergency trip pilot valve right-hand member passes through low pressure
Protection system safety oil passageway is connected to pressure detection switch and diaphragm valve；Isolating valve is installed on the left of the diaphragm valve；Institute
State and steam turbine EH fuel tanks are installed on the right side of diaphragm valve；EH systems of steam turbines high-pressure oil pipe is connected with the left of the isolating valve.
Novel steam turbine oil spout experimental rig described in the utility model has the beneficial effect that：By changing oil spout experiment dress
The oil circuit and installation isolating valve put, avoid using the higher displacement detecting element of error rate, improve oil spout experimental rig
Stability and success of the test rate.
Brief description of the drawings
Fig. 1 is a kind of connection diagram of novel steam turbine oil spout experimental rig described in the utility model；
In figure, 1, isolating valve；2nd, diaphragm valve；3rd, main oil pump；4th, magnetic valve；5th, No. 1 pressure switch；6th, No. 1 oil spout electromagnetism
Valve；7th, No. 1 flyball；8th, emergency governor, overspeed governor re-packs；9th, No. 2 pressure switches；10th, No. 2 solenoid fuel injection valves；11st, No. 2 flyballs；12nd, endanger
Anxious breaker guiding valve unloading port；13rd, emergency trip pilot valve；14th, pressure detection switch；15th, lock magnetic valve is hung；16th, low pressure is protected
Protecting system safety oil passageway；17th, EH systems of steam turbines high-pressure oil pipe；18th, steam turbine EH fuel tanks；19th, power output shaft.
Embodiment
The utility model is specifically described below in conjunction with the accompanying drawings, as shown in figure 1, a kind of novel steam turbine oil spout is tested
Device, including diaphragm valve 2, main oil pump 3, magnetic valve 4,1 pressure switch 5,1 solenoid fuel injection valve 6, No. 1 flyballs 7, critical screenings
Disconnected device re-packs 8, No. 2 solenoid fuel injection valve 10,2 of pressure switch 9,2 flyballs 11, emergency trip pilot valve unloading port 12, critical
Breaker guiding valve 13, pressure detection switch 14, hang lock magnetic valve 15, low-voltage variation system safety oil passageway 16, EH systems of steam turbines
High-pressure oil pipe 17, steam turbine EH fuel tanks 18 and power output shaft 19, the power output shaft 19 are sequentially connected main oil pump 3,1 and flown
Hammer 7 and No. 2 flyballs 11 into shape；The main oil pump 3 connects magnetic valve 4, emergency trip respectively by low-voltage variation system safety oil passageway 16
The left end of device guiding valve 13 and extension lock magnetic valve 15；The extension lock magnetic valve 15 connects the right-hand member of emergency trip pilot valve 13；The electromagnetism
Valve 4 connects No. 1 pressure switch 5 and No. 2 pressure switches 9 respectively；No. 1 pressure switch 5 and No. 2 pressure switches 9 connect 1 respectively
Number solenoid fuel injection valve 6 and No. 2 solenoid fuel injection valves 10；No. 1 solenoid fuel injection valve 6 and No. 2 solenoid fuel injection valves 10 connect No. 1 respectively
Flyball 7 and No. 2 flyballs 11；No. 1 flyball 7 and the top of No. 2 flyballs 11 are provided with emergency governor, overspeed governor and re-pack 8；The critical screening
Disconnected device re-pack 8 lower section emergency trip pilot valve 13 is installed；The right-hand member of emergency trip pilot valve 13 is provided with emergency governor, overspeed governor
Guiding valve unloading port 12；The right-hand member of emergency trip pilot valve 13 is connected to pressure by low-voltage variation system safety oil passageway 16
Detection switch 14 and diaphragm valve 2；The left side of diaphragm valve 2 is provided with isolating valve 1；The right side of diaphragm valve 2 is provided with steam turbine
EH fuel tanks 18；The left side of isolating valve 1 is connected with EH systems of steam turbines high-pressure oil pipe 17.
In the present embodiment, the isolating valve 1 during steam turbine operation on EH systems of steam turbines high-pressure oil pipe 17 is opened, every
Film valve 2 is closed, and does not allow now to carry out oil spout experiment.Closing isolating valve 1 when needing to carry out oil spout experiment prevents hydraulic oil from leading to
Cross, power output shaft 19 provides power to 3, No. 1 flyballs 7 of main oil pump and No. 2 flyballs 11, and operation magnetic valve 4 connects oil circuit；When
When oil pressure is increased to No. 1 or No. 2 pressure switch action oil pressure, to control system feedback signal, oil spout experiment can be carried out.Operation
No. 1 or No. 2 solenoid fuel injection valves are powered carries out oil spouts to No. 1 or No. 2 flyballs respectively, the flyball after oil spout is in high rotating speed centrifugal force
Hit under effect and promote emergency governor, overspeed governor to re-pack 8, emergency governor, overspeed governor re-packs 8 impact emergency trip pilot valves 13；Emergency governor, overspeed governor
The action of guiding valve 13 opens emergency trip pilot valve unloading port 12, low-voltage variation system Safety oil draining；Low-voltage safety oil pressure
Reduce diaphragm valve 2 to open, when oil pressure reaches the action oil pressure of pressure detection switch 14 to control system feedback signal, show oil spout
Success of the test.Although the action of emergency trip pilot valve 13 makes the reduction of low-voltage variation system Safety oil drainage pressure, diaphragm valve 2 is beaten
Open, but blocked because EH systems of steam turbines hydraulic oil has been isolated valve 1, so EH systems of steam turbines hydraulic oil will not be caused to let out
Pressure, steam turbine will not be interrupted under oil spout test situation, can continue to run with.Experiment finishes, and it is multiple that lock magnetic valve 15 is hung in operation
Position emergency trip pilot valve 13, establish the safe oil pressure of low-voltage variation system, diaphragm valve 2 is closed automatically, pressure detection switch 14
Reset, open isolating valve 1, total Test terminates.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solutions of the utility model, the technology of the art
Personnel embody principle of the present utility model to some variations that some of which part may be made, and belong to the utility model
Protection domain within.
Claims (1)
1. a kind of novel steam turbine oil spout experimental rig, including diaphragm valve (2), main oil pump (3), magnetic valve (4), No. 1 pressure are opened
Close (5), No. 1 solenoid fuel injection valve (6), No. 1 flyball (7), emergency governor, overspeed governor re-pack (8), No. 2 pressure switches (9), No. 2 oil spout electricity
Magnet valve (10), No. 2 flyballs (11), emergency trip pilot valve unloading port (12), emergency trip pilot valve (13), pressure detection switch
(14) lock magnetic valve (15), low-voltage variation system safety oil passageway (16), EH systems of steam turbines high-pressure oil pipe (17), steam turbine, are hung
EH fuel tanks (18) and power output shaft (19), it is characterised in that：The power output shaft (19) be sequentially connected main oil pump (3), No. 1
Flyball (7) and No. 2 flyballs (11)；The main oil pump (3) connects magnetic valve respectively by low-voltage variation system safety oil passageway (16)
(4), emergency trip pilot valve (13) left end and extension lock magnetic valve (15)；Extension lock magnetic valve (15) the connection emergency governor, overspeed governor is slided
Valve (13) right-hand member；The magnetic valve (4) connects No. 1 pressure switch (5) and No. 2 pressure switches (9) respectively；No. 1 pressure is opened
Close (5) and No. 2 pressure switches (9) connect No. 1 solenoid fuel injection valve (6) and No. 2 solenoid fuel injection valves (10) respectively；No. 1 oil spout
Magnetic valve (6) and No. 2 solenoid fuel injection valves (10) connect No. 1 flyball (7) and No. 2 flyballs (11) respectively；No. 1 flyball (7) and 2
Emergency governor, overspeed governor is installed above number flyball (11) to re-pack (8)；The emergency governor, overspeed governor re-packs and is provided with emergency trip below (8)
Device guiding valve (13)；Emergency trip pilot valve (13) right-hand member is provided with emergency trip pilot valve unloading port (12)；It is described critical
Breaker guiding valve (13) right-hand member by low-voltage variation system safety oil passageway (16) be connected to pressure detection switch (14) and every
Film valve (2)；Isolating valve (1) is installed on the left of the diaphragm valve (2)；Steam turbine EH fuel tanks are installed on the right side of the diaphragm valve (2)
(18)；EH systems of steam turbines high-pressure oil pipe (17) is connected with the left of the isolating valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720372581.0U CN206862632U (en) | 2017-04-11 | 2017-04-11 | A kind of novel steam turbine oil spout experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720372581.0U CN206862632U (en) | 2017-04-11 | 2017-04-11 | A kind of novel steam turbine oil spout experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206862632U true CN206862632U (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720372581.0U Active CN206862632U (en) | 2017-04-11 | 2017-04-11 | A kind of novel steam turbine oil spout experimental rig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059522A (en) * | 2022-06-02 | 2022-09-16 | 中国神华煤制油化工有限公司 | Steam turbine emergency trip test device and emergency trip test method |
-
2017
- 2017-04-11 CN CN201720372581.0U patent/CN206862632U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059522A (en) * | 2022-06-02 | 2022-09-16 | 中国神华煤制油化工有限公司 | Steam turbine emergency trip test device and emergency trip test method |
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