CN204646337U - A kind of start up system of steam-operating oil pump - Google Patents
A kind of start up system of steam-operating oil pump Download PDFInfo
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- CN204646337U CN204646337U CN201520371607.0U CN201520371607U CN204646337U CN 204646337 U CN204646337 U CN 204646337U CN 201520371607 U CN201520371607 U CN 201520371607U CN 204646337 U CN204646337 U CN 204646337U
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Abstract
The utility model discloses a kind of start up system of steam-operating oil pump, comprising: the speed be connected in series opens main inlet throttle-stop valve and speed closes main inlet throttle-stop valve; Described speed is opened main inlet throttle-stop valve and is comprised: the electromagnetic pneumatic linkage valve that solenoid valve and pneumatic valve are combined; Solenoid valve is connected with high voltage auxiliary power, and pneumatic valve is connected with source of compressed air.The utility model beneficial effect: owing to have employed the steam-operating pump start system with two main inlet throttle-stop valve admission mechanism; ensure that the reliability that lubricating pump starts; ensure that rotor can dead halt within the time of idling curve; prevent the generation of major accident, improve the safety in production performance of power plant.
Description
Technical field
The utility model belongs to thermal power generation and nuclear power generation field, particularly relates to a kind of start up system of steam-operating oil pump.
Background technique
The turbine oil system of current use is for exchanging oil pump and direct current oil pump.Turbine oil system plays very important effect in turbine system, its task reliably provides qualified lubricant oil to each bearing (comprising block bearing and thrust-bearing) of turbine LP rotors, barring gear, and take away the heat that main steam produced by axle conduction, friction and turbulent flow.When exchanging oil pump accident, direct current oil pump provides lubricant oil to turbine system, ensures the safe operation of system.But when having unit interruption of service before this, interchange oil pump and direct current oil pump all can not cut work system timely, cause the generation of major accident.
Bearing oil-break is the serious accident of Turbo-generator Set, and it can cause equipment badly damaged, even causes bearing housing to catch fire or explode.The basic method of prevention bearing oil-break is the lubricating oil system that design has height reliability.The lubricating oil system of designed reliability, needing to be designed with the start up system that speed opens speed pass, can be lubricating oil system come into operation rapidly at burst accident.
In order to ensure safe fuel feeding, power station is provided with the urgent oil supply system of steam driven lubricating pump.This system must put into operation on time, reliably, automatically when power station dead electricity, and maintains turbine speed, ensures the charge oil pressure of oil pump.Conveniently steam turbine custom is set, steam turbine is provided with an automatic main throttle valve, and by electromagnetic valve.Upon loss of power, solenoid valve action, opens automatic main throttle valve, steam turbine admission, starts steam turbine.Because the reliability requirement for this system is high, so for the configuration of equipment, redundancy had.But because this system only configures a main inlet throttle-stop valve, reliability is lower.Once this main inlet throttle-stop valve is inoperative, the function of whole system will be lost.
Model utility content
The purpose of this utility model is exactly that propose a kind of start up system of steam-operating oil pump, this system provides reliable guarantee for the startup of urgent steam-operating lubricating pump, and urgent steam-operating lubricating pump is started rapidly when needs in order to solve the problem.
To achieve these goals, the utility model adopts following technological scheme:
A start up system for steam-operating oil pump, comprising: the speed be connected in series opens main inlet throttle-stop valve and speed closes main inlet throttle-stop valve; Described speed is opened main inlet throttle-stop valve and is comprised: the electromagnetic pneumatic linkage valve that solenoid valve and pneumatic valve are combined; Solenoid valve is connected with high voltage auxiliary power, and pneumatic valve is connected with source of compressed air.
Described speed is opened main inlet throttle-stop valve and speed and is closed main inlet throttle-stop valve and be all arranged on steam turbine admission pipeline, and steam flows through that speed opens main inlet throttle-stop valve, speed is closed main inlet throttle-stop valve and air inlet regulating device and entered steam turbine inside successively.
Former temperature of power plant steam turbine is normally run, solenoid valve, pneumatic valve air feed, makes speed open main inlet throttle-stop valve and closes; Manual rotation speed closes main inlet throttle-stop valve handle, and speed pass main inlet throttle-stop valve is opened.
When former temperature of power plant steam turbine is normally run, the opening and closing that speed opens main inlet throttle-stop valve is controlled by on-site manual or the realization of remote manual control gear.
Described remote manual control gear comprises: operating grip, linkage mechanism and on-the-spot coupling mechanism;
Described operating grip is connected with linkage mechanism, and linkage mechanism is connected with the startup control gear for controlling steam turbine start and stop by on-the-spot coupling mechanism;
Acted on the solenoid valve on steam-turbine pipeline by linkage mechanism, on-the-spot coupling mechanism, control the logical vapour of steam turbine, thus control the start and stop of steam-operating oil pump.
Described operating grip be arranged on the mutually level operating platform of steam turbine master-control room on or be set directly on the operating platform of steam turbine master-control room.
The beneficial effects of the utility model are:
Adopt the utility model, in full factory dead electricity situation, utilize electromagnetic pneumatic interstage valve, dead electricity emergency start driving steam turbine system, driving steam turbine drives lubricating pump to provide lubricant oil, ensures that steam turbine can dead halt in idling time.
The utility model has the steam-operating pump start system of two main inlet throttle-stop valve admission mechanism owing to have employed; ensure that the reliability that lubricating pump starts; ensure that rotor can dead halt within the time of idling curve, prevent the generation of major accident, improve the safety in production performance of power plant.
Accompanying drawing explanation
Fig. 1 is the start up system remote manual Control system architecture schematic diagram of the utility model steam-operating oil pump;
Fig. 2 is the start up system structural representation of the utility model steam-operating oil pump;
Fig. 3 is the utility model driving steam turbine structural representation.
Wherein, 1. turbine body, 1-1. operating grip, 1-2. linkage mechanism, the on-the-spot coupling mechanism of 1-3., the steam-operating valve of the female pipe of the main vapour of 1-4., 1-5. transferring platform layer, 1-6. zero meter of, 1-7. main steam;
2-1. solenoid valve, 2-2. pneumatic valve, 2-3. speed closes main inlet throttle-stop valve, 2-4. admission controlling device, 2-5. source of compressed air;
3-1. contingency gas sources, 3-2. steam turbine start control gear, 3-3. rotating speed Speed control mechanism, 3-4. is unpowered from cooling mechanism, 3-5. without electric Displaying Meter, 3-6. exhauster system.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
Usually, the urgent steam-operating oil pump systems of steam turbine comprises: emergent vapour source 3-1 is connected with turbine body 1 through steam pipework, steam turbine startup control gear 3-2, admission controlling device 2-4, and turbine body 1 is connected with urgent steam-operating oil pump.
Bearing oil-break is the serious accident of Turbo-generator Set, and it can cause equipment badly damaged, and as the wearing and tearing of axle journal and thrust disc, supporting and thrust-bearing scaling loss, and the collision of the rotating part caused thus and stationary part, even cause bearing housing to catch fire or explode.
Therefore, in order to ensure the safety of turbine body 1, in other embodiment, devising driving steam turbine, as shown in Figure 3, comprising: the rotating speed Speed control mechanism 3-3 connected successively, turbine body 1 and unpowered from cooling mechanism 3-4; Turbine body 1 connect respectively without electric Displaying Meter 3-5 and exhauster system 3-6;
The parameters such as turbine speed can be shown by Displaying Meter without electricity.Unpowered from cooling mechanism 3-4 can to its bearing implement external power-free cooling, ensure that bearing temperature is in safety range.Rotating speed Speed control mechanism 3-3 is by the valve opening of adjustment steam turbine, and adjustment steam turbine throttle flow, to ensure the invariablenes turning speed of steam turbine.The design of driving steam turbine, ensures that turbine speed reaches 1500r/min rapidly, to provide qualified lubricant oil.
The steam utilizing unit auxiliary vapour header to store, as emergent vapour source 3-1, also can utilize other to store thermogenetic steam as emergent vapour source 3-1, as the admission of driving steam turbine.
After the steam discharge of driving steam turbine can enter the vapour condenser condensation carried, water of condensation discharged and collect.Also steam discharge directly can be introduced main frame vapour condenser.Also by special row's air pipe, steam discharge directly can be entered air.
Driving steam turbine relies on coupling and urgent steam-operating oil pump connection on a shaft, and is jointly installed on steel pedestal.Turbine body 1, coupling, urgent steam-operating oil pump and relevant steam pipework, in-line, oil feed line, relevant valve, relevant instrument etc. form an entirety together with pedestal, can be airtight with outer cover, are installed between steam turbine locomotive.Outer cover open type can not had to install, run yet.
The filler opening of urgent steam-operating oil pump is connected by the main fuel tank of in-line and former power station or the fuel tank that arranges specially.
The oil outlet of urgent steam-operating oil pump, is connected by female pipe of oil feed line and former temperature of power plant steam turbine lubricant oil, and link position is positioned at the female pipe pipeline of the lubricant oil after injector.Check valve is set between urgent fuel pump outlet and the female pipe of former lubricant oil, prevents the refluence of oil.
A start up system for steam-operating oil pump, be arranged on the connecting pipeline of emergent vapour source 3-1 and driving steam turbine, structure as shown in Figure 2, comprising: the speed be connected in series opens main inlet throttle-stop valve and speed closes main inlet throttle-stop valve 2-3; Speed is opened main inlet throttle-stop valve and is comprised: the electromagnetic pneumatic linkage valve that solenoid valve 2-1 and pneumatic valve 2-2 combines; Solenoid valve 2-1 is connected with high voltage auxiliary power, and pneumatic valve 2-2 is connected with source of compressed air 2-5.Speed is opened main inlet throttle-stop valve and speed and is closed main inlet throttle-stop valve 2-3 and be all arranged on steam turbine admission pipeline, and steam flows through that speed opens main inlet throttle-stop valve, speed closes main inlet throttle-stop valve 2-3 and air inlet regulating device enters steam turbine inside successively.
Speed open main inlet throttle-stop valve without under outer capacity for normal off status, speed closes main inlet throttle-stop valve 2-3 without being normally open under outer capacity.
During system reserve, former temperature of power plant steam turbine is normally run, and solenoid valve 2-1 powers, and pneumatic valve 2-2 air feed, makes spring-compressed, and speed is opened main inlet throttle-stop valve and closed; Manual rotation speed closes main inlet throttle-stop valve 2-3 handle, and speed pass main inlet throttle-stop valve 2-3 opens.In the stand-by state, can remote control solenoid valve 2-1 and then manipulation quick-opening valve, control the start and stop of air pump system, so that carry out Pneumatic oil pump test.
If former power station dead electricity, then have a power failure and solenoid valve 2-1 is opened, pressurized air enters main inlet throttle-stop valve, and speed is opened main inlet throttle-stop valve and automatically opened.Main steam 1-7 closes main inlet throttle-stop valve 2-3 through speed and enters steam turbine acting, starts steam turbine.A whole set of self-starting process completes.In running, clash into connecting rod through turbine spindle flyball during hypervelocity and make speed close main inlet throttle-stop valve 2-3 quick closedown.
When steam-operating oil pump is normally tested, solenoid valve 2-1 dead electricity, solenoid valve 2-1 dead electricity makes the pressure of vapour pressure pipe change, and the pressure of vapour pressure pipe changes thus causes the unlatching of steam-operating oil pump main steam 1-7 pipeline valve, and valve opening degree regulates according to the change of pressure.Such as, in certain urgent steam-operating oil pump systems, in dead electricity situation, solenoid valve 2-1 associates reaction with two main inlet throttle-stop valve through a series of, main steam 1-7 female pipe steam-operating valve opening, steam drives the rotation of steam turbine, and steam turbine drives lubricating pump to provide lubricant oil to power generator turbine.
System is provided with dead electricity emergency start system, the speed being controlled this system by solenoid valve 2-1 opens main inlet throttle-stop valve, in dead electricity in emergency circumstances, speed is opened main inlet throttle-stop valve and is opened, and steam enters driving steam turbine, and driving steam turbine does work, drive lubricating pump rotates, realize providing lubricant oil to steam turbine, within the scope of the safety time of idling curve, ensure that in emergency circumstances main steam turbine can safe stall.
This system is provided with and manually boots system on the spot, can manually boot at the scene, tests with regular scene, guarantees can put into operation at any time.
This start up system is generally placed and 1-6 fuel tank side, steam turbine building zero meter of, and the control room of steam turbine is generally at steam turbine operating platform, such as 12 meters of platforms, if operations staff needs to start this cover urgent steam-operating oil pump experimental system, need from steam turbine operating platform to steam turbine building zero meter of 1-6 fuel tank side, extremely inconvenient, especially in emergency circumstances, be delayed the time of putting into operation.
Therefore, in other embodiment, be provided with the remote manual control system of start up system, as shown in Figure 1, specifically comprise: operating grip 1-1, linkage mechanism 1-2 and on-the-spot coupling mechanism 1-3; Be all mechanical transmission, can use when guaranteeing non-transformer.Operating grip 1-1 is arranged on steam turbine operating platform, and operating grip 1-1 is connected with bar mechanism, and is connected to the solenoid valve 2-1 of the female pipe of steamer owner vapour by bar mechanism, on-the-spot coupling mechanism 1-3.Operation and the stopping of steam-operating oil pump can be controlled by connecting rod and on-the-spot coupling mechanism 1-3 by operating grip 1-1, like this can by the operating grip 1-1 of the transferring platform layer 1-5 residing for master-control room, Non-follow control starts the start and stop of oil pump.By remote manual control technique, steam-operating oil pump can be operated at operating platform, ensure more reliably for the operation of in emergency circumstances steam-operating oil pump or experiment provide.On-the-spot coupling mechanism 1-3 can select electromagnetic coupler or other coupling devices.
During the experiment of steam-operating pump start, the operating grip 1-1 of manually-operable control room layer, acted on the steam-operating valve 1-4 of the female pipe of steam-operating oil pump systems steamer owner vapour by linkage mechanism 1-2, turbine system leads to vapour, and rotor running drives steam-operating oil pump supply lubricant oil.
When steam-operating oil pump stops testing, the operating grip 1-1 of manually-operable control room layer, acts on the steam-operating valve 1-4 of the female pipe of steam-operating oil pump systems steamer owner vapour by linkage mechanism 1-2, take-off device trips, steam-operating valve closing, turbine system leads to vapour to be stopped, and steam-operating oil pump stops supply lubricant oil.
Prove through field experiment; the utility model steam-operating pump start system, in full factory dead electricity situation, utilizes electromagnetic pneumatic interstage valve, dead electricity emergency start driving steam turbine system; driving steam turbine drives lubricating pump to provide lubricant oil, ensures that steam turbine can dead halt in idling time.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (6)
1. a start up system for steam-operating oil pump, is characterized in that, comprising: the speed be connected in series opens main inlet throttle-stop valve and speed closes main inlet throttle-stop valve; Described speed is opened main inlet throttle-stop valve and is comprised: the electromagnetic pneumatic linkage valve that solenoid valve and pneumatic valve are combined; Solenoid valve is connected with high voltage auxiliary power, and pneumatic valve is connected with source of compressed air.
2. the start up system of a kind of steam-operating oil pump as claimed in claim 1, it is characterized in that, described speed is opened main inlet throttle-stop valve and speed and is closed main inlet throttle-stop valve and be all arranged on steam turbine admission pipeline, and steam flows through that speed opens main inlet throttle-stop valve, speed is closed main inlet throttle-stop valve and air inlet regulating device and entered steam turbine inside successively.
3. the start up system of a kind of steam-operating oil pump as claimed in claim 1, it is characterized in that, former temperature of power plant steam turbine is normally run, solenoid valve, pneumatic valve air feed, makes speed open main inlet throttle-stop valve and closes; Manual rotation speed closes main inlet throttle-stop valve handle, and speed pass main inlet throttle-stop valve is opened.
4. the start up system of a kind of steam-operating oil pump as claimed in claim 1, is characterized in that, when former temperature of power plant steam turbine is normally run, the opening and closing that speed opens main inlet throttle-stop valve is controlled by on-site manual or the realization of remote manual control gear.
5. the start up system of a kind of steam-operating oil pump as claimed in claim 4, is characterized in that, described remote manual control gear comprises: operating grip, linkage mechanism and on-the-spot coupling mechanism;
Described operating grip is connected with linkage mechanism, and linkage mechanism is connected with the startup control gear for controlling steam turbine start and stop by on-the-spot coupling mechanism;
Acted on the solenoid valve on steam-turbine pipeline by linkage mechanism, on-the-spot coupling mechanism, control the logical vapour of steam turbine, thus control the start and stop of steam-operating oil pump.
6. the start up system of a kind of steam-operating oil pump as claimed in claim 5, is characterized in that, described operating grip be arranged on the mutually level operating platform of steam turbine master-control room on or be set directly on the operating platform of steam turbine master-control room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520371607.0U CN204646337U (en) | 2015-06-02 | 2015-06-02 | A kind of start up system of steam-operating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520371607.0U CN204646337U (en) | 2015-06-02 | 2015-06-02 | A kind of start up system of steam-operating oil pump |
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| Publication Number | Publication Date |
|---|---|
| CN204646337U true CN204646337U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520371607.0U Expired - Fee Related CN204646337U (en) | 2015-06-02 | 2015-06-02 | A kind of start up system of steam-operating oil pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879175A (en) * | 2015-06-02 | 2015-09-02 | 济南达能动力技术有限责任公司 | Steam-driven oil pump stating system and method |
| CN113864171A (en) * | 2021-08-31 | 2021-12-31 | 国家电网有限公司 | Control method of high-pressure oil jacking system of hydropower station generator |
-
2015
- 2015-06-02 CN CN201520371607.0U patent/CN204646337U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879175A (en) * | 2015-06-02 | 2015-09-02 | 济南达能动力技术有限责任公司 | Steam-driven oil pump stating system and method |
| CN113864171A (en) * | 2021-08-31 | 2021-12-31 | 国家电网有限公司 | Control method of high-pressure oil jacking system of hydropower station generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160602 |