CN221299321U - Emergency shutdown protection system for gas turbine unit - Google Patents
Emergency shutdown protection system for gas turbine unit Download PDFInfo
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- CN221299321U CN221299321U CN202323269157.8U CN202323269157U CN221299321U CN 221299321 U CN221299321 U CN 221299321U CN 202323269157 U CN202323269157 U CN 202323269157U CN 221299321 U CN221299321 U CN 221299321U
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- 230000001012 protector Effects 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 4
- 230000030279 gene silencing Effects 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Control Of Turbines (AREA)
Abstract
The utility model provides an emergency shutdown protection system for a gas turbine unit, which comprises an operation display device, a shutdown assembly and a control system, wherein the operation display device is used for displaying the emergency shutdown protection system; one end of the stopping component is connected with the operation display device, and the other end of the stopping component is connected with the control system; the shutdown assembly comprises an input loop, a watchdog loop, an output loop, an initialization loop and an operation display module; one end of the input loop and one end of the watchdog loop are connected with a controller in the control system, and the other end of the input loop and the watchdog loop are connected with the output loop and controlled by operating an emergency stop button in the display device; the output loop is connected with the control system; the operation display device is connected with the operation display module and the initialization loop, and the initialization loop is connected with the output loop and is transmitted to the control system. When the control system fails, the system is powered off and the gas turbine overspeed, the emergency safe shutdown of the gas turbine is realized through the assembly, and the emergency safe shutdown is completely realized by hardware, so that the emergency safe shutdown control system has the advantages of simple structure, safety, reliability, convenience in realization, low cost and the like.
Description
Technical Field
The utility model belongs to the field of equipment manufacturing, and particularly relates to a protection system for realizing emergency shutdown of a gas turbine unit.
Background
The gas turbine control system is a set of distributed control system which takes a controller as a core and is used for controlling the gas turbine generator set and an auxiliary system thereof to run safely, reliably, stably and efficiently, and has the functions of controlling the start-up, loading and unloading, stopping, monitoring control, interlocking protection, emergency stopping and the like of the generator set.
The controller is the core of the whole set of control system, all data processing, logic operation and the like are executed in the controller, and certain failure probability exists because the controller is a relatively complex electronic component. For this reason, redundant controllers are used in many designs to improve the reliability of the system. However, even then, there may be cases where after failure of the main controller, failure of redundant switching or failure of power, failure of the backplane or frame, results in simultaneous failure of all controllers. Once the controller is not working, the gas turbine unit will handle the out of control condition, if the unit is unable to stop in time at this time, the unit will overspeed, resulting in serious consequences of damage or casualties of the unit.
In order to avoid the above-mentioned consequences, a protection device is required, which can ensure that the gas turbine unit realizes the emergency stop function even if the controller fails.
Disclosure of utility model
The utility model aims to provide an emergency shutdown protection system for a gas turbine unit, which is completely realized by hardware, does not depend on a controller and any software, can realize the emergency shutdown of the gas turbine by the device when the unit is overspeed, the controller or the software fails or even the system is powered off, and can avoid damage to the unit or threat to personnel safety.
An emergency shutdown protection system for implementing a gas turbine unit includes an operation display device, a shutdown assembly, and a control system; one end of the stopping component is connected with the operation display device, and the other end of the stopping component is connected with the control system; the shutdown assembly comprises an input loop, a watchdog loop, an output loop, an initialization loop and an operation display module; one end of the input loop and one end of the watchdog loop are connected with a controller in the control system, and the other end of the input loop and the watchdog loop are connected with the output loop and controlled by operating an emergency stop button in the display device; the output loop is connected with the control system; the operation display device is connected with the operation display module and the initialization loop, and the initialization loop is connected with the output loop and is transmitted to the control system.
Further, the output loop is connected with a fuel valve output, a lubricating oil pump output and a bleed valve output in the control system.
Further, the operation display device further comprises a silencing function, an unlocking function, a timing ending function and a buzzer function, and is connected with the operation display module.
Further, an overspeed protector is arranged in the control system and is connected with the input loop.
The utility model has the beneficial effects that: the utility model is completely built by hardware, and the whole device can reach higher security level by selecting hardware with higher security level; the utility model has strong universality and can be used in most control systems; the system has simple structure and good economy. The utility model can avoid the damage to the machine set or the injury to personnel caused by serious faults such as system program breakdown, power failure and the like, and has the advantages of low cost, high reliability and short development time.
Drawings
Fig. 1 is a schematic diagram of the present utility model.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Referring to FIG. 1, a system for implementing an emergency shutdown protection system for a gas turbine unit includes an operation display device, a shutdown assembly, and a control system; one end of the stopping component is connected with the operation display device, and the other end of the stopping component is connected with the control system; the shutdown assembly comprises an input loop, a watchdog loop, an output loop, an initialization loop and an operation display module; one end of the input loop and one end of the watchdog loop are connected with a controller in the control system, and the other end of the input loop and the watchdog loop are connected with the output loop and controlled by operating an emergency stop button in the display device; the output loop is connected with the control system; the operation display device is connected with the operation display module and the initialization loop, the initialization loop is connected with the output loop and is transmitted to the control system, the output loop is connected with the fuel valve output, the lubricating oil pump output and the air release valve output in the control system, the operation display device further comprises the functions of silencing, unlocking, timing ending and a buzzer and is connected with the operation display module, an overspeed protector is arranged in the control system, and the overspeed protector is connected with the input loop.
The working process of the utility model is described in detail below:
first, the loop is initialized to operate the components, the emergency shutdown component detects a watchdog signal from the control system, and if the watchdog signal disappears, the control system fails. The emergency shutdown assembly will act;
The input loop receives signals such as an emergency stop button input from the operation display device, an emergency stop signal input of the control system, an overspeed input of the overspeed protector and the like, and when any one of the input signals is received, the emergency stop assembly acts;
After the emergency stop assembly acts, a buzzer on the operation display device gives out alarm sounds, the operation display device can be silenced, and the output loop cuts off the fuel supply valve, starts the lubricating oil pump and opens the air release valve;
after the emergency stop assembly acts, stop timing is started, the timing time is up, an indicator light on the operation display device is turned on, at the moment, unlocking operation can be carried out, the emergency stop assembly is reset, and the emergency stop assembly is put into operation again.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. An emergency shutdown protection system for a gas turbine unit, comprising an operation display device, a shutdown assembly and a control system; one end of the stopping component is connected with the operation display device, and the other end of the stopping component is connected with the control system; the shutdown assembly comprises an input loop, a watchdog loop, an output loop, an initialization loop and an operation display module; one end of the input loop and one end of the watchdog loop are connected with a controller in the control system, and the other end of the input loop and the watchdog loop are connected with the output loop and controlled by operating an emergency stop button in the display device; the output loop is connected with the control system; the operation display device is connected with the operation display module and the initialization loop, and the initialization loop is connected with the output loop and is transmitted to the control system.
2. The system of claim 1, wherein the output circuit is coupled to a fuel valve output, a lubricant pump output, and a bleed valve output of the control system.
3. The emergency shutdown protection system for a gas turbine unit of claim 1, wherein the operation display device further comprises a silencing, unlocking, timing ending and buzzer function and is connected to the operation display module.
4. An emergency shutdown protection system for a gas turbine unit according to claim 1, characterized in that an overspeed protector is provided in the control system, which overspeed protector is connected to the input circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323269157.8U CN221299321U (en) | 2023-12-01 | 2023-12-01 | Emergency shutdown protection system for gas turbine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323269157.8U CN221299321U (en) | 2023-12-01 | 2023-12-01 | Emergency shutdown protection system for gas turbine unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221299321U true CN221299321U (en) | 2024-07-09 |
Family
ID=91755014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323269157.8U Active CN221299321U (en) | 2023-12-01 | 2023-12-01 | Emergency shutdown protection system for gas turbine unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221299321U (en) |
-
2023
- 2023-12-01 CN CN202323269157.8U patent/CN221299321U/en active Active
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