CN219711674U - Fifth and eighth grade air release valve control device - Google Patents
Fifth and eighth grade air release valve control device Download PDFInfo
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- CN219711674U CN219711674U CN202320898446.5U CN202320898446U CN219711674U CN 219711674 U CN219711674 U CN 219711674U CN 202320898446 U CN202320898446 U CN 202320898446U CN 219711674 U CN219711674 U CN 219711674U
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- air release
- electromagnetic valve
- gas turbine
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- 239000000446 fuel Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 101100408455 Arabidopsis thaliana PLC7 gene Proteins 0.000 description 4
- 101100408454 Arabidopsis thaliana PLC6 gene Proteins 0.000 description 3
- 101100408456 Arabidopsis thaliana PLC8 gene Proteins 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010011416 Croup infectious Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 201000010549 croup Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
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Abstract
The utility model discloses a fifth-level and eighth-level air release valve control device, and relates to the technical field of gas turbines. The device comprises: the device comprising the oil pump, the pressure gauge, the programmable logic controller PLC and the electromagnetic valve replaces the fuel regulator on the gas turbine to control the air release valve, wherein the pressure gauge monitors the pressure in the pipe and transmits the pressure change to the programmable logic controller PLC, and the programmable logic controller PLC makes a judgment to control the opening and closing states of the electromagnetic valve, so that the opening or closing of the fifth-stage and eighth-stage air release valves in the gas turbine are controlled. The utility model has the advantages of lower cost of each component, more convenient maintenance and obvious control effect on the fifth and eighth-level air release valves of the gas turbine.
Description
Technical Field
The utility model relates to the technical field of gas turbines, in particular to a fifth-level and eighth-level air release valve control device.
Background
In the starting process of the gas turbine, the air flow rate flowing through the air compressor is reduced to a certain degree, and the whole air compressor cannot work normally. At this time, the air flow rate fluctuates and is negligent; the pressure pulsation is high, low and severe, even the backflow phenomenon of air flow from the inlet of compressed air can occur, and the phenomenon is also accompanied by low-frequency croup sound, and can cause the unit to generate severe vibration, which is called surge phenomenon.
In the prior art, in order to prevent the surging phenomenon in the starting process of the gas turbine, the fifth stage and the eighth stage of the gas compressor in the gas turbine are provided with bleed valves to control the interstage pressure of the gas compressor, and the fuel regulator controls the bleed valves through the rotating speed: when the engine speed reaches 500 r/min-1000 r/min, the fifth-stage and eighth-stage air release valves are simultaneously opened, and the eighth-stage air release valve is at 9340 engine speed 0 +200 The fifth stage air release valve is closed at r/min and the engine speed is 11340 0 +130 And closing at r/min, so as to ensure the stable operation of the gas turbine from the starting to the working rotating speed.
The control method has the following problems: the fuel regulator belongs to foreign technology, has high use cost as a gas valve control device, cannot be repaired once damaged, and cannot be put into use again.
Disclosure of Invention
The embodiment of the utility model provides a fifth-level and eighth-level air release valve control device, which can solve the problem of high cost of the fifth-level and eighth-level air release valve control device in a gas turbine in the prior art.
The embodiment of the utility model provides a fifth-level and eighth-level air release valve control device, which comprises: a bleed valve control system, comprising: the system comprises a pressure gauge, a programmable logic controller PLC, a first electromagnetic valve and a second electromagnetic valve;
the first electromagnetic valve and the second electromagnetic valve are connected with an oil pump through an oil pipe, the pressure gauge is arranged on the oil pipe, and the pressure gauge is electrically connected with the Programmable Logic Controller (PLC);
the programmable logic controller PLC is electrically connected with the first electromagnetic valve and the second electromagnetic valve;
the first electromagnetic valve is used for connecting a fifth-stage air release valve of the gas turbine; the second electromagnetic valve is used for being connected with an eighth-stage air release valve of the gas turbine.
In addition, the first electromagnetic valve is connected with a first interface, and the first interface is connected with a fifth-stage air release valve of the gas turbine; the second electromagnetic valve is connected with a second interface, and the second interface is connected with an eighth-stage air release valve of the gas turbine.
In addition, an oil inlet, an oil return port and an oil outlet are arranged on the oil pump, and a one-way valve is connected to an oil pipe connected with the oil outlet.
In addition, when the first electromagnetic valve and the second electromagnetic valve are in a closed state, excessive oil in the oil pump flows to an oil tank of the gas turbine through the oil return port.
The embodiment of the utility model provides a fifth-level and eighth-level air release valve control device, which has the following beneficial effects compared with the prior art:
the utility model replaces the control of the gas release valve by the fuel regulator on the gas turbine by the device composed of the oil pump, the pressure sensor, the pressure gauge, the programmable logic controller PLC and the electromagnetic valve, wherein the pressure gauge is used for monitoring the pressure in the pipe and transmitting the pressure change to the programmable logic controller PLC, and the programmable logic controller PLC makes a judgment to control the opening and closing states of the electromagnetic valve, thereby controlling the opening or closing of the fifth-stage and eighth-stage gas release valves in the gas turbine. The utility model has the advantages of lower cost of each component, more convenient maintenance and obvious control effect on the fifth and eighth-level air release valves of the gas turbine.
Drawings
Fig. 1 is a schematic structural diagram of a fifth and eighth stage air release valve control device according to an embodiment of the present utility model.
Wherein: 1. an oil pump; 2. an oil inlet; 3. an oil return port; 4. an oil outlet; 5. a one-way valve; 6. a pressure gauge; 7. a Programmable Logic Controller (PLC); 8. a first electromagnetic valve; 9. a first interface; 10. a second electromagnetic valve; 11. and a second interface.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, an embodiment of the present utility model provides a fifth and eighth stage air release valve control device, including: a bleed valve control system, comprising: a pressure gauge 6, a programmable logic controller PLC7, a first electromagnetic valve 8 and a second electromagnetic valve 10;
the first electromagnetic valve 8 and the second electromagnetic valve 10 are connected with the oil pump 1 through oil pipes, the pressure gauge 6 is arranged on the oil pipes, and the pressure gauge 6 is electrically connected with the programmable logic controller PLC 7;
the programmable logic controller PLC7 is electrically connected with the first electromagnetic valve 8 and the second electromagnetic valve 10;
the first electromagnetic valve 8 is used for connecting a fifth-stage air release valve of the gas turbine; the second solenoid valve 10 is used for connecting an eighth stage bleed valve of the gas turbine: the first electromagnetic valve 8 is connected with a first interface 9, and the first interface 9 is connected with a fifth-stage air release valve of the gas turbine; the second solenoid valve 10 is connected to a second port 11, and the second port 11 is connected to an eighth stage bleed valve of the gas turbine. The open/close states of the fifth-stage bleed valve and the eighth-stage bleed valve of the gas turbine are controlled by controlling the open/close states of the first electromagnetic valve 8 and the second electromagnetic valve 10 by using the programmable logic controller PLC 7.
An oil inlet 2, an oil return port 3 and an oil outlet 4 are arranged on the oil pump 1, and a one-way valve 5 is connected to an oil pipe connected with the oil outlet 4. When the first electromagnetic valve 8 and the second electromagnetic valve 10 are in a closed state, excessive oil in the oil pump 1 flows to an oil tank of the gas turbine through the oil return port 3, so that the device is prevented from being damaged due to excessive oil in the oil pump 1.
The operation mode of the utility model is as follows:
after the gas turbine is started, the pressure in the pipe starts to increase, the indication number of the pressure gauge 6 also changes correspondingly, the change of the pressure is transmitted to the programmable logic controller PLC7, and the programmable logic controller PLC7 makes a judgment:
when the indication number of the pressure gauge 6 reaches 294kPa, the pressure in the pipe is transmitted to a programmable logic controller PLC8, the first electromagnetic valve 8 and the second electromagnetic valve 10 are controlled to be opened, and the air release valve of the gas turbine is fully opened;
when the indication number of the pressure gauge 6 reaches 588kPa, the pressure in the pipe is transmitted to a programmable logic controller PLC8, the second electromagnetic valve 10 is controlled to be closed, and an eighth-stage air release valve of the gas turbine is closed;
when the indication number of the pressure gauge 6 reaches 852.6kPa, the pressure in the pipe is transmitted to the programmable logic controller PLC8, the first electromagnetic valve 8 is controlled to be closed, and the fifth-stage air release valve of the gas turbine is closed.
When the first solenoid valve 8 and the second solenoid valve 10 are in a closed state, the excessive oil in the oil pump 1 flows to the oil tank of the gas turbine through the oil return port 3.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Claims (4)
1. A fifth and eighth stage bleed valve control device, comprising: a bleed valve control system, comprising: a pressure gauge (6), a Programmable Logic Controller (PLC) (7), a first electromagnetic valve (8) and a second electromagnetic valve (10);
the first electromagnetic valve (8) and the second electromagnetic valve (10) are connected with the oil pump (1) through an oil pipe, the pressure gauge (6) is arranged on the oil pipe, and the pressure gauge (6) is electrically connected with the Programmable Logic Controller (PLC) (7);
the Programmable Logic Controller (PLC) (7) is electrically connected with the first electromagnetic valve (8) and the second electromagnetic valve (10);
the first electromagnetic valve (8) is used for being connected with a fifth-stage air release valve of the gas turbine; the second electromagnetic valve (10) is used for being connected with an eighth-stage air release valve of the gas turbine.
2. A fifth and eighth stage bleed valve control device according to claim 1, characterized in that said first solenoid valve (8) is connected to a first interface (9), said first interface (9) being connected to a fifth stage bleed valve of the gas turbine; the second electromagnetic valve (10) is connected with a second interface (11), and the second interface (11) is connected with an eighth-stage air release valve of the gas turbine.
3. The fifth-eighth-stage air release valve control device according to claim 1, wherein an oil inlet (2), an oil return port (3) and an oil outlet (4) are arranged on the oil pump (1), and a one-way valve (5) is connected to an oil pipe connected with the oil outlet (4).
4. A fifth and eighth bleed valve control device according to claim 3, characterized in that when said first solenoid valve (8) and said second solenoid valve (10) are in a closed condition, more oil in said oil pump (1) flows through said return opening (3) to the gas turbine's tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320898446.5U CN219711674U (en) | 2023-04-20 | 2023-04-20 | Fifth and eighth grade air release valve control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320898446.5U CN219711674U (en) | 2023-04-20 | 2023-04-20 | Fifth and eighth grade air release valve control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219711674U true CN219711674U (en) | 2023-09-19 |
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ID=87978697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320898446.5U Active CN219711674U (en) | 2023-04-20 | 2023-04-20 | Fifth and eighth grade air release valve control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219711674U (en) |
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2023
- 2023-04-20 CN CN202320898446.5U patent/CN219711674U/en active Active
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