CN207813755U - A kind of combustion engine combustion mode switching control valve switch time control device - Google Patents
A kind of combustion engine combustion mode switching control valve switch time control device Download PDFInfo
- Publication number
- CN207813755U CN207813755U CN201820194354.8U CN201820194354U CN207813755U CN 207813755 U CN207813755 U CN 207813755U CN 201820194354 U CN201820194354 U CN 201820194354U CN 207813755 U CN207813755 U CN 207813755U
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- China
- Prior art keywords
- control valve
- mode switching
- switching control
- combustion mode
- switch time
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Abstract
The utility model discloses a kind of combustion engine combustion mode switching control valve switch time control devices, the swingle of linkage is provided in combustion mode switching control valve, magnetic gasket is connected on the swingle, the magnetic sheet of the contact magnetic sensor be separately positioned on the closing of combustion mode switching control valve in place with open on position in place, the contact magnetic sensor is fixed on by flange in combustion mode switching control valve, the contact magnetic sensor outer cup is equipped with explosion-proof shell, the air source of the switch time controller connection combustion mode switching control valve.Vibration during the utility model avoids operation causes the switch time generation variation of its combustion mode switching control valve to reach threshold risk value so that combustion engine safe operation goes wrong；The switch time of combustion engine featheriness valve is monitored in real time, is estimated conducive to the data record and danger of operations staff.
Description
Technical field
The utility model is related to a kind of feedback device of combustion engine combustion mode switching control valve more particularly to a kind of combustions
Machine combustion mode switching control valve switch time control device.
Background technology
Gas-steam Combined Cycle power station has the characteristics that the thermal efficiency is high, peaking performance is good, within the scope of world in recent years
Development is swift and violent.Develop one of Gas-steam Combined Cycle, and China's power industry the main direction of development.The 9E of GE, which combines, to follow
Ring gas turbine introduces domestic many years, but the country lacks experience to the research of GE turbine control systems, in debugging and practical fortune
It will appear some during row and need improved device and equipment.
Combustion mode switching control valve is the capital equipment of fuel featheriness system.In gas turbine the start-up period, burning
Pattern switching control valve repeatedly coordinates with fuel control valve, realizes fuel and the phase double replacement of air under various working or is isolated.
The effect of combustion mode switching control valve is to provide purging air after the associated nozzles of the burner are out of service, and ensureing should
Micro-positive pressure at nozzle prevents pipeline detonation and tempering；Meanwhile providing certain cooling prevents high temperature burn and combustion mode from switching
Shi Wendu is excessively high to lead to handover failure；And the air provided can also play and blend combustion-supporting effect.Combustion mode switching control
Combustion engine will be caused to be unable to operate normally when valve failure processed, it can not normal power generation so as to cause generator.Combustion mode switching control
Valve events failure is 9E type gas turbines longer the problem of encountering.
The combustion mode switching control valve of 9E types combustion engine has no control, record and the monitoring of switch time at present, only
The switch on ground is shown in place, is unfavorable for monitoring and assurance of the operations staff to parameter, and because the valve is in scene, operation one
Since the problems such as vibrating may result in the loosening of live air intake control valve door after the section time so that its opening time is more than debugging
The setting valve of period, so need to carry out it regularly valve regulation experiment, but since the influence of different operating conditions is adjusted
Time is difficult to hold.When its switch time being more than prescribed requirement it is possible that pipeline detonation and tempering, or even chaser occurs.
It is non-to stop that prodigious economic loss is caused to the operation of combustion engine, the regular supply of electric power can be also influenced, the service life of combustion engine is reduced.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of combustion engine combustion mode switching control
Threshold switch time-controlling arrangement can stablize the switch and switching speed for accurately controlling combustion engine combustion mode switching control valve.
The utility model is achieved through the following technical solutions, the utility model include combustion mode switching control valve,
The contact magnetic sensor and switch time controller being arranged in combustion mode switching control valve, the combustion mode switching
It is provided with the swingle of linkage on control valve, magnetic gasket is connected on the swingle, the contact magnetic sensor
Magnetic sheet be separately positioned on the closing of combustion mode switching control valve in place with open on position in place, the contact magnetism passes
Sensor is fixed on by flange in combustion mode switching control valve, and the contact magnetic sensor outer cup is equipped with explosion-proof shell,
The air source of the switch time controller connection combustion mode switching control valve.
The control device further includes timer and control room, and the contact magnetic sensor is connect with timer, institute
Control room is stated to connect with timer and switch time controller respectively.
The magnetic gasket on swingle is made to touch contact magnetic transducing when combustion mode switching control valve is fully closed
The magnetic sheet of device sends out a signal at this time, and display combustion mode switching control valve has been closed, when combustion mode switching control valve is opened
When, magnetic gasket is detached from magnetic sheet, then signal inverts, and timer starts timing, when combustion mode switching control valve is fully open
When, magnetic gasket touches another block of magnetic sheet, and signal inverts at this time, and timing terminates.When combustion mode switching control valve is closed,
Also same timing course is carried out.
According to the switch time of the accurate fixed combustion mode switching control valve of combustion engine combustion radicals, pass through switch time controller
The switching speed of real-time control combustion mode switching control valve, and actual switch time input control room is subjected to monitoring alarm.
When combustion mode switching control valve opening time is unqualified, accelerates its opening time, reduces the temperature of combustion chamber,
(basis for estimation is the switching temperature of combustion engine, if its big Mr. Yu of benchmark TTRF of burning when startup stage carrying out combustion mode switching
When certain value, then air inflow is controlled so that the opening time of combustion mode switching control valve accelerates) it prevents in premix switch mode
When burner cooling is bad causes unit is non-to stop into abnormal combustion state；When unqualified between when the valve is closed, accelerate its pass
The time is closed, for example, being set as 8s, can not be closed if more than this time, control increasing air inflow, its closing velocity is made to accelerate, is prevented
Only burner, which occurs VGC-3 cartridges when combustion mode switches, can not normally provide fuel.
The junction of the contact magnetic sensor and timer is equipped with explosion stack, the company of the timer and control room
It meets place and is equipped with explosion stack.It ensure that measuring device and the safety and stability of wiring.
The contact magnetic sensor is connect with timer using plug-in.
The utility model has the following advantages compared with prior art：The utility model does not use original mechanical open off-position
Feedback is set, the vibration during avoiding operation causes the switch time of its combustion mode switching control valve to generate variation and reaches critical
Dangerous values so that combustion engine safe operation goes wrong；So that the switch time of combustion engine featheriness valve can be conducive to fortune with real-time control
The monitoring of administrative staff, is estimated convenient for data record and danger；The utility model is provided with timing and alarming functions, when valve switch
Between can send out when reaching alarm setting value and alarm and be shown on the computer picture of control room, prevent operations staff from not realizeing this
Parameter and the disorderly closedown for causing combustion engine.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial schematic diagram of the swingle of combustion mode switching control valve；
Fig. 3 is the partial schematic diagram of switch time controller.
Specific implementation mode
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, give detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited
In following embodiments.
As depicted in figs. 1 and 2, the present embodiment includes combustion mode switching control valve 1, is arranged in combustion mode switching control
Contact magnetic sensor 2 on valve 1 and switch time controller 6 are provided with linkage in the combustion mode switching control valve 1
Swingle 11, be connected with magnetic gasket 12 on the swingle 11, the magnetic sheet of the contact magnetic sensor 2 is respectively set
It 13 and is opened in place on 14 position in place in the closing of combustion mode switching control valve 1, the contact magnetic sensor 2 is logical
Flange 21 to be crossed to be fixed in combustion mode switching control valve 1,2 outer cup of contact magnetic sensor is equipped with explosion-proof shell 22,
The switch time controller 6 connects the air source of combustion mode switching control valve 1.
The control device further includes timer 3 and control room 4, and the contact magnetic sensor 2 connects with timer 3
It connects, the control room 4 is connect with timer 3 and switch time controller 6 respectively.
As shown in figure 3, switch time controller 6 controls the connection of switch 61 for switching to combustion mode by valve air source
The air accumulator 15 that control valve 1 supplies, switch time controller 6 receive the signal control of control room 4 simultaneously.
The timer 3 of the present embodiment selects DS-03ERQ LCD digital display industry timers.
The magnetic gasket 12 on swingle 11 is made to touch contact magnetism when combustion mode switching control valve 1 is fully closed
The magnetic sheet of sensor 2 sends out a signal at this time, and display combustion mode switching control valve 1 has been closed, when combustion mode switching control
When valve 1 is opened, magnetic gasket 12 is detached from magnetic sheet, then signal inverts, and timer 3 starts timing, when combustion mode switching control
When valve 1 is fully open, magnetic gasket 12 touches another block of magnetic sheet, and signal inverts at this time, and timing terminates.When combustion mode switches
When control valve 1 is closed, same timing course is also carried out.
The contact magnetic sensor 2 and the junction of timer 3 are equipped with explosion stack 5, the timer 3 and control room
4 junction is equipped with explosion stack 5.It ensure that measuring device and the safety and stability of wiring.
The contact magnetic sensor 2 is connect with timer 3 using plug-in.
According to combustion engine combustion radicals accurate fixed 1 switch time of combustion mode switching control valve, pass through switch time controller 6
The switching speed of real-time control combustion mode switching control valve 1, and actual switch time input control room 4 is subjected to monitoring report
It is alert.
When 1 opening time of combustion mode switching control valve is unqualified, accelerates its opening time, reduce the temperature of combustion chamber
Degree, (basis for estimation is the switching temperature of combustion engine, if its benchmark TTRF that burns is more than when startup stage carrying out combustion mode switching
When certain certain value, then air inflow is controlled so that the opening time of combustion mode switching control valve 1 accelerates) it prevents from switching in premix
Burner cooling is bad when pattern causes unit is non-to stop into abnormal combustion state；When unqualified between when the valve is closed, accelerate
Its shut-in time can not close for example, being set as 8s if more than this time, control increasing air inflow, its closing velocity is made to add
Soon, fuel can not normally be provided by preventing burner from occurring VGC-3 cartridges when combustion mode switches.
The contact magnetic sensor 2 fixed is verified, it is ensured that completely closed in combustion mode switching control valve 1
When export 0 signal, 1 signal is exported when combustion mode switching control valve 1 opens complete, it is ensured that just when formally coming into operation
True property, valve switch accurate timing；Computer uses the connection type of universal signal interface with position feed back signal, can control
On off state and the switch time of combustion mode switching control valve 1 are immediately seen on the computer picture of room 4；It is set in timer 3
The time definite value of the opening and closing of combustion mode switching control valve 1 and corresponding alarm setting value have been set, has been more than time when its switch time
Automatically alarm signal is sent out when definite value, is transmitted to the monitored picture of control room 4.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (4)
1. a kind of combustion engine combustion mode switching control valve switch time control device, which is characterized in that switch including combustion mode
Control valve, the contact magnetic sensor being arranged in combustion mode switching control valve and switch time controller, the burning
It is provided with the swingle of linkage on pattern switching control valve, magnetic gasket is connected on the swingle, the contact is magnetic
The magnetic sheet of sensor be separately positioned on the closing of combustion mode switching control valve in place with open on position in place, the contact
Formula magnetic sensor is fixed on by flange in combustion mode switching control valve, and the contact magnetic sensor outer cup is equipped with
Explosion-proof shell, the air source of the switch time controller connection combustion mode switching control valve.
2. a kind of combustion engine combustion mode switching control valve switch time control device according to claim 1, feature exist
In the control device further includes timer and control room, and the contact magnetic sensor is connect with timer, the control
Room is connect with timer and switch time controller respectively.
3. a kind of combustion engine combustion mode switching control valve switch time control device according to claim 2, feature exist
In the junction of the contact magnetic sensor and timer is equipped with explosion stack, the junction of the timer and control room
Equipped with explosion stack.
4. a kind of combustion engine combustion mode switching control valve switch time control device according to claim 2, feature exist
In the contact magnetic sensor is connect with timer using plug-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820194354.8U CN207813755U (en) | 2018-02-05 | 2018-02-05 | A kind of combustion engine combustion mode switching control valve switch time control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820194354.8U CN207813755U (en) | 2018-02-05 | 2018-02-05 | A kind of combustion engine combustion mode switching control valve switch time control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207813755U true CN207813755U (en) | 2018-09-04 |
Family
ID=63323494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820194354.8U Expired - Fee Related CN207813755U (en) | 2018-02-05 | 2018-02-05 | A kind of combustion engine combustion mode switching control valve switch time control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207813755U (en) |
-
2018
- 2018-02-05 CN CN201820194354.8U patent/CN207813755U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20200205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |