WO2024001147A1

WO2024001147A1 - Ventilation control system of rotor supercharged gas turbine

Info

Publication number: WO2024001147A1
Application number: PCT/CN2023/000071
Authority: WO
Inventors: 韩培洲
Original assignee: 韩培洲
Priority date: 2022-07-01
Filing date: 2023-06-12
Publication date: 2024-01-04
Also published as: CN117365758A

Abstract

A ventilation control system of a rotor supercharged gas turbine, the ventilation control system comprising an air compressor (8), a rotor housing (23), a rotor (48) in the rotor housing, and a turbine (9), wherein the rotor housing is provided with a ventilation inlet (24), a ventilation outlet (28), and gas outlets leading to the turbine; a bypass pipe (15) with intermediate cooler branches from an air delivery pipeline (11) connected to an air output end of the air compressor, and is in communication with a pre-ventilation inlet in front of the ventilation inlet; the ventilation outlet leads to the turbine via an air output and delivery pipe (31); and a low-temperature sensor (45) is mounted on an auxiliary air output pipe (44) of a low-temperature air outlet (40) on the rear side of the ventilation outlet. When the ventilation speed in a combustion chamber slows down to allow the medium-temperature working gas to be also discharged through the low-temperature air outlet, the low-temperature sensor will send out a signal to allow a normally closed venting valve (35) on a venting pipe connected to the air output and delivery pipe for venting accordingly, so that the ventilation speed in the combustion chamber returns to normal.

Description

Rotor supercharged gas turbine ventilation control system

Technical Field The present invention relates to a ventilation control system, in particular to a ventilation control system for a rotor supercharged gas turbine.

Background Technology In the rotor supercharged gas turbine with application number 202011068701.0, although the rotor supercharged gas turbine realizes fresh compressed air and medium-temperature working gas in the rotor combustion chamber through the ventilation inlet and ventilation outlet set on the rotor shell, The replacement allows the rotor supercharged gas turbine to operate stably. However, when the power and speed of the gas turbine change, the fresh compressed air in the rotor combustion chamber may not be fully replaced with the medium-temperature power gas, affecting the normal operation of the gas turbine.

SUMMARY OF THE INVENTION The purpose of the present invention is to provide a ventilation control system for a rotor supercharged gas turbine, which not only allows the normal replacement of fresh compressed air in the rotor combustion chamber with medium-temperature working gas when the power and speed of the rotor supercharged gas turbine change. , and also facilitates the control of the power of the rotor supercharged gas turbine.

In the rotor supercharged gas turbine ventilation control system of the present invention, the rotor supercharged gas turbine includes a compressor and a turbine connected through a crankshaft. A rotor is provided in the rotor shell between the compressor and the turbine. There are several rows of pit-type combustion chambers with the same shape and equal intervals, which are densely arranged in the circumferential and axial directions on the rotor shell. In several gas distribution angle areas divided on the rotor shell, corresponding to the combustion chambers, they are arranged in sequence. There is a ventilation inlet and a ventilation outlet within the same angle range. There are corresponding gas outlets behind the ventilation inlet and the ventilation outlet. The gas pipeline connected from the air outlet of the compressor is divided into main After the gas delivery pipe and the bypass pipe of the injector, the gas delivery pipe is connected to each ventilation inlet through the gas transmission manifold, and the bypass pipe is connected to the pre-installation valve in front of the ventilation inlet through each bypass manifold. The ventilation inlet is connected, and the ventilation outlet leads to the turbine through the air outlet manifold and the gas outlet pipe. Each gas outlet also leads to the turbine through the corresponding gas pipe. There is an intercooler on the bypass pipe. From the gas pipe The small stream of compressed air that flows out enters the bypass pipe, is cooled by the intercooler on the bypass pipe, and then enters each pre-ventilation inlet through the bypass manifold. Within the total ventilation angle range occupied by the ventilation outlet , the ventilation outlet is set to consist of the main ventilation outlet and one or two low-temperature air outlets on the rear side. The auxiliary air outlet pipe connected from the low-temperature air outlet and the air outlet manifold connected from the ventilation outlet After forming into one stream, it is connected to the air outlet pipe. A low temperature sensor is installed on the auxiliary air outlet pipe. Each low temperature sensor is connected to the computer controller through a sensing signal line. An exhaust temperature sensor is installed on the air outlet pipe. The sensor The exhaust temperature signal line is also connected to the computer controller. The outlet air pipe is also divided into two branches, one directly leads to the turbine, and the other serves as a vent pipe to the low-pressure exhaust passage after the turbine. The vent pipe is equipped with a normally closed vent valve. The normally closed vent valve is connected to the execution motor control via a connecting rod. The execution motor is controlled by the computer controller via the power cord. When the combustion chamber on the rotor is connected to the ventilation inlet and When ventilation is carried out at the same position as the ventilation outlet, the combustion chamber will first be connected to the pre-ventilation inlet and ventilation outlet, so that the gas coming from the bypass pipe The part of oil-free low-temperature compressed air cooled by the intercooler is first charged into the combustion chamber. After the combustion chamber passes through the pre-ventilation inlet, it communicates with the ventilation inlet, allowing the oil-containing compressed air entering from the ventilation inlet to be filled. In the combustion chamber, the oil-free low-temperature compressed air separated in front is used to squeeze the medium-temperature power gas in the combustion chamber outward from the ventilation outlet. When the combustion chamber is about to rotate through the ventilation inlet, most of the oil-containing compressed air is also charged into the combustion chamber. Indoor, at this time, the oil-free low-temperature compressed air that was first charged into the combustion chamber also moved to the low-temperature outlet position due to the combustion chamber, allowing part of the oil-free low-temperature compressed air to be discharged from the low-temperature outlet, and let all the air on the auxiliary air outlet pipe The low-temperature sensor installed also senses the low-temperature signal that the oil-free low-temperature compressed air has flowed out along the low-temperature air outlet. When the air exchange speed in the combustion chamber slows down and the medium-temperature power gas is also discharged from the low-temperature air outlet, the low-temperature The low-temperature sensor installed on the auxiliary air outlet pipe of the air outlet will detect the high-temperature medium-temperature power gas, indicating that the oil-free low-temperature compressed air behind the medium-temperature power gas has not yet flowed to the low-temperature air outlet. At this time, the computer controller will On the basis of comparing the temperature of the medium-temperature power gas discharged from the gas outlet pipe, the execution motor drives the normally closed purge valve to open the purge accordingly, speeding up the air exchange in the combustion chamber and allowing oil-free, low-temperature compressed air to flow through Low-temperature air outlet. When the oil-free low-temperature compressed air can flow through the low-temperature air outlet normally and be discharged outward after the ventilation process is completed, the low-temperature sensor will send a normal low-temperature signal to the computer controller to allow the normally closed purge valve. Stop at the corresponding opening or closing position being controlled.

In order to adjust the amount of compressed air entering the gas pipeline and the bypass pipe, the gas pipeline connected from the air outlet of the compressor is divided into two pipelines: the gas pipeline with the main injector and the bypass pipe. There is a diverter baffle at a position separated from the two pipelines of the bypass pipe. The diverter baffle is controlled by an adjustment motor connected to a computer controller through a rocker arm and a control rod. When it is necessary to allow more compressed air to enter the gas pipeline When it is necessary to allow more compressed air to enter the bypass pipe, the diverter baffle will be driven to deflect correspondingly to the gas transmission pipe side.

In order to improve the ventilation process when ventilation enters the combustion chamber, the front side of the pre-ventilation inlet set before the ventilation inlet is tilted backward relative to the rotation direction of the combustion chamber. Between the combustion chamber and the pre-ventilation inlet When communicating, the outer corner of the front end of the combustion chamber can be communicated with the pre-ventilation inlet first.

In addition, on one or two low-temperature air outlets provided after the ventilation outlet, the rear side of the inner side connected to the last rear side is inclined outward.

In order to cooperate with the ventilation process, the side shape of the combustion chamber has also been optimized. On the front side of the combustion chamber corresponding to the ventilation outlet side, a bevel edge is formed between the front side and the outer side. , when the combustion chamber is about to turn away from the auxiliary air outlet pipe on the rear side, it helps the oil-free, low-temperature compressed air in the combustion chamber to gather and be discharged from the auxiliary air outlet pipe.

In a transmission mechanism in which the normally closed vent valve of a rotor supercharged gas turbine is controlled by a motor, the vent pipes are located on both sides of the rotor supercharged gas turbine, and the normally closed vent valves set on the vent pipes on each side pass through them. The rocker arms and connecting rods on the control shaft are connected to the control arms on the control shaft on that side, and the control shafts on both sides are connected to the driving arms on the middle execution motor through the driven arms and connecting rods at the ends.

In the second transmission mechanism in which the normally closed bleed valve of the rotor supercharged gas turbine is controlled by an electric motor, the The exhaust pipes are located on both sides of the rotor supercharged gas turbine. The rocker arms on the normally closed exhaust valves set on the exhaust pipes on each side are connected to the control rods on that side. The ends of the control rods on both sides are connected to the control rods on each side. The driven arms on both sides of the control shaft that performs motor control are connected.

In order to prevent the air exchange rate in the combustion chamber from being too fast and causing the oil-containing compressed air to be discharged from the air exchange outlet and the low-temperature air outlet, a fuel particle sensor is installed on the air outlet pipe connected to the air exchange outlet and the low-temperature air outlet. There is a throttle valve on the gas pipe near the turbine side. When the ventilation speed in the combustion chamber is too fast and oil-containing compressed air is discharged from the ventilation outlet and low-temperature air outlet and flows through the fuel particle sensor, the set fuel The particle sensor will send out a signal, allowing the computer controller to control the throttle valve to reduce the air flow speed through the air outlet pipe, so that the air exchange speed in the combustion chamber returns to normal.

In practice, a low-temperature sensor is installed on the auxiliary air outlet pipe behind the ventilation outlet to monitor whether the oil-free low-temperature compressed air flows to the low-temperature air outlet, and determine whether the medium-temperature power gas has been discharged from the combustion chamber, thereby conveniently changing the The gas control system allows the rotor supercharged gas turbine to make control responses to adapt to different power and speed changes of the gas turbine.

BRIEF DESCRIPTION OF THE DRAWINGS The ventilation control system of the rotor supercharged gas turbine of the present invention will be described in detail below with reference to the accompanying drawings.

Figure 1 is an overall structural diagram of the ventilation control system of the rotor supercharged gas turbine of the present invention.

Figure 2 is a three-dimensional schematic diagram of the ventilation control system of the rotor supercharged gas turbine.

Figure 3 is a shape layout diagram of the ventilation inlet and ventilation outlet on the rotor shell of the rotor supercharged gas turbine.

Figure 4 is a transmission mechanism layout diagram in which the normally closed purge valve of the rotor supercharged gas turbine is controlled by an electric motor.

Figure 5 is a layout diagram of the second transmission mechanism in which the normally closed purge valve of the rotor supercharged gas turbine is controlled by an electric motor.

DETAILED DESCRIPTION OF THE INVENTION The ventilation control system of the rotor supercharged gas turbine of the present invention is a control system added on the basis of the rotor supercharged gas turbine. The rotor supercharged gas turbine is shown in Figure 1 and includes a compressor 8 and a compressor connected through a crankshaft 10. Turbo 9. A rotor 48 is provided in the rotor shell 23 between the compressor 8 and the turbine 9. The rotor is directly installed on the crankshaft 10. The rotor 48 is densely arranged in the circumferential and axial directions with the same shape and equal intervals. Several rows of pit-type combustion chambers 49. In several gas distribution angle zones (not shown) divided on the rotor shell 23, corresponding to the combustion chamber 49, there are ventilation inlets 24 and ventilation outlets 28 in the same angle range. Corresponding gas outlets (not shown) are also provided after the ventilation outlet. The pipeline arrangement connected to the ventilation inlet and ventilation outlet is shown in Figure 2. The figure depicts the last row of combustion chambers 49 on the rotor 48 and is connected to the corresponding ventilation inlet 24 and ventilation outlet 28. The three-dimensional layout of the pipeline. After the gas pipeline 11 connected from the air outlet of the compressor is divided into two pipelines, the gas pipeline 12 with the main injector 13 and the bypass pipe 15, the gas pipeline 12 is connected to each exchanger via the gas pipeline 14. The air inlet 24 is connected (only the air exchange of the last row is shown in Figure 2 Inlet 24 and ventilation outlet 28), the bypass pipe 15 is connected to the pre-ventilation inlet 25 before the ventilation inlet 24 through each bypass manifold 18, and the ventilation outlet 28 is connected to the air outlet manifold 30 and the air outlet. The air pipe 31 leads to the turbine 9 . The gas outlets (not shown) after the ventilation inlet and ventilation outlet are also led to the turbine 9 through corresponding gas pipes, so that the working gas energy formed in the combustion chamber 49 can be ejected from each gas outlet in sequence. Then the turbine 9 is pushed through the corresponding gas pipe to perform work and output power outward.

After the combustion chamber 49 is connected with the ventilation inlet 24 and the ventilation outlet 28 for ventilation, in order to sense the ventilation status in the combustion chamber 49, the bypass pipe 15 is separated from the gas pipeline 11, and then the bypass pipe 15 is connected to the ventilation inlet 24 and the ventilation outlet 28. The pipe 15 is provided with an intercooler 16. The small compressed air flowing out from the gas pipeline 11 enters the bypass pipe 15, is cooled by the intercooler 16 on the bypass pipe, and then enters through the bypass manifold 18 respectively. Each pre-ventilation inlet 25 allows the small stream of compressed air entering the bypass pipe to be fully cooled. As for the arrangement of the ventilation outlets, as shown in Figure 3, within the total ventilation angle range occupied by the ventilation outlets, the ventilation outlets are set to consist of the main ventilation outlet 28 and one or two low-temperature ventilation outlets on the rear side. It consists of the air outlet 40. In Figure 3, in order to conveniently show the connection layout of different air outlets and pipelines, the ventilation outlet 28 and the air outlet manifold 30, the pre-ventilation inlet 25 and the bypass manifold 18 are all used. Twist arrangement to both sides. As shown in FIG. 3 , two low-temperature air outlets 40 are provided after the ventilation outlet 28 . In a small gas turbine, one low-temperature air outlet 40 may also be provided. The auxiliary air outlet pipe 44 connected from the low temperature air outlet 40 merges with the air outlet manifold 30 connected from the ventilation outlet 28 and then communicates with the air outlet air pipe 31 . A low temperature sensor 45 is installed on the auxiliary air outlet pipe 44, and each low temperature sensor is connected to the computer controller 54 via a sensing signal line 46 (see Figure 1). An exhaust temperature sensor 32 is provided on the outlet air pipe 31 , and the sensor is also connected to the computer controller 54 via an exhaust temperature signal line 33 . In order to adjust the exhaust flow rate of the air outlet pipe 31, the air outlet pipe 31 is also divided into two branches, one directly leads to the turbine 9, and the other serves as a vent pipe 34 and leads to the low-pressure exhaust behind the turbine 9. Channel 55, and the vent pipe 34 is provided with a normally closed vent valve 35, which is controlled and connected to the execution motor 37 via the connecting rod 36, and the execution motor is controlled by the computer controller 54 via the power cord 38.

When the combustion chamber 49 on the rotor 48 is rotated to a position communicating with the ventilation inlet and the ventilation outlet for ventilation, as shown in Figure 3, when the rotor 48 rotates in the direction of arrow 66, because the combustion chamber 49 will first The ventilation inlet 25 and the ventilation outlet 28 are connected, as shown in the combustion chamber position ① in Figure 3. The oil-free low-temperature compressed air from the bypass pipe 15 that has been fully cooled by the intercooler 16 is first charged into the combustion chamber. Room 49. When the combustion chamber rotates through the pre-ventilation inlet 25 and communicates with the ventilation inlet 24 (see combustion chamber position ② in Figure 3), the oil-containing compressed air 61 entering from the ventilation inlet 24 begins to be charged into the combustion chamber. Since the combustion chamber has been filled with a small amount of oil-free compressed air through the pre-ventilation inlet 25, the oil-containing compressed air 61 entering the combustion chamber will use the oil-free low-temperature compressed air 62 separated from the front to reduce the medium temperature in the combustion chamber 49. The power gas 63 is squeezed out from the ventilation outlet 28 to prevent the oil-containing compressed air 61 from being ignited in advance by the medium-temperature power gas 63 in the combustion chamber. When the combustion chamber is about to rotate through the ventilation inlet 24 (refer to the combustion chamber position ③ in Figure 3), most of the oil-containing compressed air is also charged into the combustion chamber 49, and at this time, first The oil-free low-temperature compressed air filled into the combustion chamber is also moved to the low-temperature air outlet 40 due to the combustion chamber, allowing part of the oil-free low-temperature compressed air to be discharged from the low-temperature air outlet 40, and allowing the low-temperature sensor provided on the auxiliary air outlet pipe 44 to 45 also senses the low-temperature signal that the oil-free low-temperature compressed air has flowed out along the low-temperature air outlet 40, indicating that normal ventilation is taking place in the combustion chamber.

When the gas turbine slows down the ventilation speed in the combustion chamber 49 due to changes in power and rotational speed, and the medium-temperature power gas is also discharged from the low-temperature gas outlet 40, the low-temperature gas outlet pipe 44 connected to the low-temperature gas outlet The sensor 45 will detect the high-temperature medium-temperature power gas, indicating that the oil-free low-temperature compressed air behind the medium-temperature power gas has not yet flowed to the low-temperature air outlet 40. At this time, the computer controller 54 will communicate with the air outlet pipe 31. On the basis of comparing the temperature of the discharged medium-temperature working gas, the execution motor 37 drives the normally closed bleed valve 35 to open and release air accordingly (see Figure 1), so that the medium-temperature working gas in the outlet gas pipe 31 can quickly flow to the turbine 9 The subsequent low-pressure exhaust passage 55 is released, which accelerates the air exchange speed in the combustion chamber 49 and allows oil-free low-temperature compressed air to flow through the low-temperature air outlet 40 . When the oil-free low-temperature compressed air can flow normally through the low-temperature air outlet 40 and be discharged outward after the ventilation process, the low-temperature sensor 45 will send a normal low-temperature signal to the computer controller 54 to allow the normally closed bleed valve 35 Stopping at the corresponding controlled opening or closing position allows the rotor supercharged gas turbine to monitor and regulate the ventilation process.

In order to more effectively regulate the ventilation process in the combustion chamber, the gas pipeline 11 connected from the air outlet of the compressor is divided into two pipelines, the gas pipeline 12 with the main injector and the bypass pipe 15. The position where the air pipe 12 and the bypass pipe 15 diverge is also provided with a diverter baffle 19 , which is controlled by an adjusting motor 22 connected to the computer controller 54 via a rocker arm 20 and a control rod 21 . When it is necessary to allow more compressed air to enter the gas transmission pipe 12, the diverter baffle 19 will be driven to deflect correspondingly to the side of the bypass pipe 15. When it is necessary to allow more compressed air to enter the bypass pipe 15, the diverter baffle 19 19 will be driven to deflect accordingly to the gas pipe 12 side. Of course, since the angular positions of the ventilation inlet 24 and the pre-ventilation inlet 25 have been fixed, the flow rate regulated by the diverter baffle 19 to the gas delivery pipe 12 and the bypass pipe 15 on both sides is not very large.

When the combustion chamber first communicates with the pre-ventilation inlet 25 and performs the ventilation process, in order to prevent the oil-free low-temperature compressed air entering the combustion chamber 49 from disturbing the remaining medium-temperature power gas in the combustion chamber, the combustion chamber is configured as shown in Figure 3 When rotating in the direction of arrow 66, the front edge 26 of the pre-ventilation inlet 25 provided in front of the ventilation inlet 24 is tilted backward relative to the rotation direction of the combustion chamber 49. In this way, between the combustion chamber 49 and the pre-ventilation inlet 24 When the inlet 25 is connected, as shown in the position ① of the combustion chamber in Figure 3, the outer corner of the front end of the combustion chamber can be communicated with the pre-ventilation inlet first, so that the oil-free low-temperature compressed air can flow from the first communicating combustion chamber The outer corner of the front end of 49 is first filled into the combustion chamber, and the medium-temperature working gas is squeezed out toward the ventilation outlet 28 with a low degree of mutual mixing of the gases.

After the medium-temperature working gas in the combustion chamber is basically squeezed out of the combustion chamber, in order to prevent the oil-containing compressed air 61 from entering the combustion chamber from the ventilation inlet 24, it is discharged from the low-temperature air outlet 40 after the ventilation outlet 28, as shown in Figure 3 shown in On the two low-temperature air outlets 40 provided after the ventilation outlet 28 (or one low-temperature air outlet), the rear side of the inner side 42 connected to the last rear side 41 is inclined outward. In addition, the side shape of the combustion chamber is also matched accordingly. As shown in FIG. 3, on the front side 50 of the combustion chamber 49 corresponding to the ventilation outlet 28 side, a shape is formed between the front side 50 and the outer side 51. A bevel edge 52 is provided. In this way, after the combustion chamber 49 is rotated to the combustion chamber position ③ as shown in Figure 3, when the combustion chamber is about to rotate away from the auxiliary exhaust pipe 44 on the rear side, it helps to make the air in the combustion chamber The oil-free low-temperature compressed air is collected and then discharged from the auxiliary air outlet pipe 44 to reduce the amount of oil-free low-temperature compressed air remaining in the combustion chamber.

In the rotor supercharged gas turbine, the number of vent pipes for regulating the ventilation process of the combustion chamber is the same as the number of gas distribution angle zones. The rotor supercharged gas turbine of the present invention is provided with four gas distribution angle zones. There are four corresponding vent pipes. In order to facilitate the control of the normally closed vent valve on each vent pipe, the transmission mechanism arrangement of the normally closed vent valve as shown in Figure 4 can be used. In this mechanism, the rotor supercharged gas turbine The vent pipes 34 are located on both sides of the gas turbine. The normally closed vent valve 35 provided on the vent pipe 34 on each side is connected to the control arm on the control shaft 72 on that side through the rocker arm 67 and the connecting rod 36 thereon. 71 are connected, the control shafts 72 on both sides are connected to the driving arm 75 on the middle executive motor 37 through the driven arm 73 and connecting rod 74 at the end, and one executive motor is used to control four normally closed vent valves 35.

In addition to the transmission mechanism arrangement structure of the normally closed purge valve in Figure 4, the second transmission mechanism arrangement structure of the normally closed purge valve as shown in Figure 5 can also be used. In the second normally closed purge valve In the transmission mechanism, the vent pipes 34 are located on both sides of the rotor supercharged gas turbine. The ends of each vent pipe also lead to the casing 76 of the low-pressure exhaust passage. The normally closed vent pipes 34 on each side are provided. The rocker arms 67 on the air release valve 35 are connected to the control rods 68 on that side, and the ends of the control rods on both sides are connected to the driven arms 70 on both sides of the control shaft 60 controlled by the execution motor 37, thereby using An execution motor controls four normally closed purge valves 35. The transmission mechanism of the second type of normally closed purge valve shown in Figure 5 is relatively simple in structure.

In practice, when the ventilation speed in the combustion chamber is too fast, oil-containing compressed air will inevitably be discharged from the ventilation outlet 28 and the subsequent low-temperature air outlet 40. To prevent this from happening, it can also be used as shown in Figure 2 It is shown that a fuel particle sensor 78 is installed on the air outlet pipe 31 connected to the ventilation outlet and the low temperature air outlet, and a throttle valve 79 is also installed on the outlet pipe 31 close to the turbine 9. In this way, when the combustion chamber 49 The ventilation speed is too fast, and when oil-containing compressed air is discharged from the ventilation outlet 28 and the low-temperature air outlet 40 and flows through the fuel particle sensor 78, the fuel particle sensor will send a signal to the computer controller 54 to control The throttle valve 79 reduces the air flow speed flowing through the air outlet pipe 31 to return the air exchange speed in the combustion chamber to a normal state, thus preventing the oil-containing compressed air from being discharged into the outlet air pipe 31 . The throttle valve 79 does not have to have a particularly large valve plate area. When the throttle valve is closed to the maximum cut-off area state, the gas flow rate flowing through the gas delivery pipe 31 is correspondingly reduced to allow the medium pressure in the combustion chamber to The ventilation speed is slightly slower so that the oil-containing compressed air does not flow out of the combustion chamber, and most of the medium-pressure gas after power is not prevented from flowing out of the combustion chamber and rushing to the turbine 9 through the gas pipe 31.

Claims

A ventilation control system for a rotor supercharged gas turbine. The rotor supercharged gas turbine includes a compressor (8) and a turbine (9) connected through a crankshaft. The rotor shell (9) between the compressor (8) and the turbine (9) 23) is provided with a rotor (48), and several rows of pit-type combustion chambers (49) with the same shape and equal intervals are densely arranged in the circumferential and axial directions of the rotor (48). 23), corresponding to the combustion chamber (49), there are ventilation inlets (24) and ventilation outlets (28) within the same angle range. There are corresponding gas outlets after the ventilation outlet. The gas pipeline (11) connected from the gas outlet of the compressor (8) is divided into a gas pipeline (12) with a main injector (13) and a side gas pipe (12) with a main injector (13). After the two pipelines of the pipe (15) are connected, the gas transmission pipe (12) is connected to each ventilation inlet (24) through the gas transmission manifold (14), and the bypass pipe (15) is then connected to each bypass manifold. (18) is connected to the pre-ventilation inlet (25) before the ventilation inlet (24). The ventilation outlet (28) leads to the turbine (9) through the air outlet manifold (30) and the air outlet pipe (31). Each gas The air outlet also leads to the turbine (9) through the corresponding gas pipeline (9), which is characterized in that: an intercooler (16) is provided on the bypass pipe (15), and the small stream flowing out from the gas pipeline (11) is compressed. The air enters the bypass pipe (15), is cooled by the intercooler (16) on the bypass pipe, and then enters each pre-ventilation inlet (25) through the bypass manifold (18). Within the total ventilation angle range, the ventilation outlet is configured to consist of the main ventilation outlet (28) and one or two low-temperature air outlets (40) on the rear side, and is connected from the low-temperature air outlet (40) The auxiliary air outlet pipe (44) merges with the air outlet manifold (30) connected from the ventilation outlet (28) and then is connected to the air outlet air pipe (31). The auxiliary air outlet pipe (44) is equipped with a low temperature Sensor (45), each low temperature sensor is connected to the computer controller (54) via a sensing signal line (46), and an exhaust temperature sensor (32) is provided on the air outlet pipe (31). The sensor passes the exhaust temperature signal The line (33) is also connected to the computer controller (54), and the air outlet pipe (31) is also divided into two branches, one directly leads to the turbine (9), and the other serves as a vent pipe (34) to The low-pressure exhaust passage (55) after the turbine (9) is provided with a normally closed bleed valve (35) on the bleed pipe (34). The normally closed bleed valve (35) is connected to the execution motor (37) through the connecting rod (36). ) control is connected, the execution motor is controlled by the computer controller (54) through the power cord (38), when the combustion chamber (49) on the rotor (48) is moved to a position communicating with the ventilation inlet and ventilation outlet for ventilation , because the combustion chamber (49) will first be connected with the pre-ventilation inlet (25) and the ventilation outlet (28), so that the part from the bypass pipe (15) cooled by the intercooler (16) will be oil-free and low temperature Compressed air is first charged into the combustion chamber (49). After the combustion chamber passes through the pre-ventilation inlet (25), it communicates with the ventilation inlet (24), allowing the oil-containing compressed air entering from the ventilation inlet (24) to be filled. Combustion chamber, use the oil-free low-temperature compressed air separated in front to squeeze the medium-temperature working gas in the combustion chamber (49) outward from the ventilation outlet (28). When the combustion chamber is about to pass through the ventilation inlet (24), Most of the oil-containing compressed air is also charged into the combustion chamber (49), and at this time, the oil-free and low-temperature compressed air that is first charged into the combustion chamber is also moved to the low-temperature air outlet (40) due to the combustion chamber, allowing part of the oil-free and low-temperature compressed air to flow into the combustion chamber. Compressed air is discharged from low temperature The low-temperature sensor (45) set on the auxiliary air outlet pipe (44) also senses the low-temperature signal that the oil-free low-temperature compressed air has flowed out along the low-temperature air outlet (40). When the combustion When the ventilation speed in the chamber (49) slows down and the medium-temperature power gas is discharged from the low-temperature air outlet (40), the low-temperature sensor (45) provided on the auxiliary air outlet pipe (44) of the low-temperature air outlet will The high-temperature medium-temperature power gas is monitored, indicating that the oil-free low-temperature compressed air behind the medium-temperature power gas has not yet flowed to the low-temperature air outlet (40). At this time, the computer controller (54) will communicate with the air outlet pipe (40). 31) On the basis of comparing the temperature of the discharged medium-temperature power gas, let the execution motor (37) drive the normally closed purge valve (35) to open the purge accordingly, so as to accelerate the air exchange speed in the combustion chamber (49) and allow the oil-free The low-temperature compressed air can flow through the low-temperature air outlet (40). When the oil-free low-temperature compressed air can flow through the low-temperature air outlet (40) normally and be discharged outward after the ventilation process, the low-temperature sensor (45) will The computer controller (54) sends a normal low temperature signal to stop the normally closed vent valve (35) at the controlled corresponding opening or closing position.
The rotor supercharged gas turbine ventilation control system according to claim 1, characterized in that: the gas transmission pipeline (11) connected from the air outlet end of the compressor is divided into a gas transmission pipe (12) with a main injector and a side gas pipe (12) with a main injector. After the two pipelines of the pass pipe (15), a diverter baffle (19) is provided at the position where the gas pipe (12) and the bypass pipe (15) diverge. The diverter baffle (19) passes through the rocker arm (20) The control rod (21) is controlled by the regulating motor (22) connected to the computer controller (54). When it is necessary to allow more compressed air to enter the air pipe (12), the diverter baffle (19) will be driven toward The side of the bypass pipe (15) deflects accordingly. When it is necessary to allow more compressed air to enter the bypass pipe (15), the diverter baffle (19) will be driven to deflect correspondingly to the side of the air pipe (12).
The rotor supercharged gas turbine ventilation control system according to claim 1 or 2, characterized in that: the front side (26) of the pre-ventilation inlet (25) set before the ventilation inlet (24) is relative to the combustion chamber (24). The inner side of the rotation direction of 49) is tilted backward. When the combustion chamber (49) communicates with the pre-ventilation inlet (25), the outer corner of the front end of the combustion chamber can communicate with the pre-ventilation inlet first.
The rotor supercharged gas turbine ventilation control system according to claim 1 or 2, characterized in that: one or two low-temperature air outlets (40) provided after the ventilation outlet (28) are connected to the last rear side The rear side of the inner side (42) connected to the side (41) is inclined outward.
The rotor supercharged gas turbine ventilation control system according to claim 1 or 2, characterized in that: on the front side (50) of the combustion chamber (49) corresponding to the ventilation outlet (28) side, on the front A bevel edge (52) is formed between the side edge (50) and the outer edge (51), which helps the combustion chamber (49) to rotate away from the rear auxiliary air outlet pipe (44). The oil and low-temperature compressed air phases are collected and then discharged from the auxiliary air outlet pipe (44).
The ventilation control system for a rotor supercharged gas turbine according to claim 1 or 2, characterized in that: the vent pipes (34) are located on both sides of the rotor supercharged gas turbine, and the vent pipes (34) are provided on each side. The normally closed air release valve (35) is connected to the control arm (71) on the control shaft (72) on this side through the rocker arm (67) and connecting rod (36) on it. The control shafts (72) on both sides Then through the driven arm (73) and connecting rod (74) at the end and the execution motor in the middle The driving arm (75) on (37) is connected.
The ventilation control system of the rotor supercharged gas turbine according to claim 1 or 2, characterized in that: the vent pipes (34) are located on both sides of the rotor supercharged gas turbine, and the vent pipes (34) are provided on each side. The rocker arm (67) on the normally closed air release valve (35) is connected to the control rod (68) on that side, and the ends of the control rods on both sides are connected to the control shaft (67) controlled by the execution motor (37). The driven arms (70) on both sides of 60) are connected.
The rotor supercharged gas turbine ventilation control system according to claim 1 or 2, characterized in that: a fuel particle sensor (78) is installed on the gas outlet pipe (31) connected to the ventilation outlet and the low-temperature gas outlet. There is a throttle valve (79) on the gas pipe (31) close to the turbine (9). When the ventilation speed in the combustion chamber is too fast, oil-containing compressed air will flow from the ventilation outlet (28) and the low-temperature air outlet (40). When the gas is discharged outward and flows through the fuel particle sensor (78), the fuel particle sensor will send a signal, allowing the computer controller (54) to control the throttle valve (79) to reduce the flow rate through the air outlet pipe (31). The air flow speed returns the ventilation speed in the combustion chamber to normal.