CN116447341B

CN116447341B - PE pipeline remote pneumatic cut-off valve

Info

Publication number: CN116447341B
Application number: CN202310712881.9A
Authority: CN
Inventors: 张鹏
Original assignee: Xi'an Binlin Electronic Technology Co ltd
Current assignee: Xi'an Binlin Electronic Technology Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-08-25
Anticipated expiration: 2043-06-16
Also published as: CN116447341A

Abstract

The invention discloses a PE pipeline remote pneumatic cut-off valve, which relates to the technical field of cut-off valves and comprises a connecting end pipe, wherein a cut-off assembly is fixedly arranged on the connecting end pipe and comprises a cut-off chamber, three separation cut-off plates are slidably arranged in the cut-off chamber, a control chamber is fixedly arranged on the cut-off chamber, a fixed rejection permanent magnet is fixedly arranged on the control chamber, and a separation cut-off plate sliding rod in sliding fit with the three separation cut-off plates is fixedly arranged on the fixed rejection permanent magnet. The invention adopts the design without filter element, can be used in the environment with more dust, and does not need to replace the filter element, thereby improving the efficiency of pressurizing the gas; the arranged cut-off assembly adopts three layers of separation cut-off plates to isolate the space at two sides, so that the isolation stability is effectively ensured; through setting up pneumatic execution component and remote control module, can realize the quick cutting off PE communicating pipe in a long-range.

Description

PE pipeline remote pneumatic cut-off valve

Technical Field

The invention relates to the technical field of shut-off valves, in particular to a PE pipeline remote pneumatic shut-off valve.

Background

The pneumatic cut-off valve has the function of quick cut-off and is mainly applied to the industrial production fields of petroleum, chemical industry, metallurgy and the like. However, the current start cut-off valve can enter dust and impurities in the process of compressing air, and the damage of the gas compression mechanism is easy to cause.

For this reason, in the prior art, the invention patent with publication number CN115823275a discloses a pneumatic piston cut-off valve, and although the technical scheme of the invention can solve the problem of dust interference, the invention cannot be applied to places with more dust content, such as mines. This is because the solution disclosed in this patent requires frequent replacement of the filter cartridge in places where the dust content is high.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the following technical scheme: the utility model provides a PE pipeline long-range pneumatic trip valve, includes the connection end pipe, its fixed mounting has the subassembly that cuts off on the connection end pipe, the subassembly that cuts off includes the cutting chamber, and slidable mounting has three separation cutting boards in the cutting chamber, still fixed mounting has the control room on the cutting chamber, fixed the repelling permanent magnet of fixed mounting on the control room, fixed repelling permanent magnet go up fixed mounting with three separation cutting board sliding fit's separation cutting board slide bar, fixed repelling permanent magnet's middle part still slidable mounting has the pull rod, fixed mounting has the elastic component backup pad on the pull rod, fixed mounting has the movable repelling permanent magnet that mutually repulses with fixed repelling permanent magnet on the elastic component backup pad, fixed mounting has pneumatic execution subassembly on the fixed repelling permanent magnet; the pneumatic execution assembly comprises a piston sliding cylinder, an air guide groove is formed in the bottom of the inner wall of the piston sliding cylinder, an air inlet nozzle communicated with the air guide groove is fixedly arranged at the bottom of the piston sliding cylinder, a piston plate is slidably arranged in the piston sliding cylinder, a lifting clamping block is fixedly arranged on the piston plate, the lifting clamping block is fixedly arranged at the top end of a pull rod, and a piston air chamber communicated with the air guide groove is formed in the piston plate; the control room is fixedly provided with an air inlet module, the air inlet module comprises an air supply room, the inside of the air supply room is communicated with an air inlet nozzle through an air guide pipe, a safety pressure relief hole for overvoltage protection is formed in the air guide pipe, an air supply rotating disc is rotationally arranged in the air supply room, a planetary gearbox is fixedly arranged in the air supply room, the output end of the planetary gearbox is fixedly connected with the air supply rotating disc through an output rotating shaft, a conical air inlet separation pipe is fixedly arranged on the air supply room, a separation air chamber is fixedly arranged on the conical air inlet separation pipe, at least nine spiral inlets are formed in the separation air chamber along the tangential direction of the surface of the separation air chamber, spiral sheets are matched with the inner wall of the separation air chamber, and a remote control module for controlling a driving motor and an electromagnet is fixedly arranged on the control room.

Preferably, an elastic component is arranged between the elastic component support plate and each separation cutting plate, the elastic component surrounds the separation cutting plate sliding rod, and the elastic component support plate is in sliding fit with the separation cutting plate sliding rod.

Preferably, each separation cutting plate is provided with two sliding channels which are in sliding fit with the sliding rods of the separation cutting plates, the two sliding channels are communicated through a first-stage pressure release channel, and the first-stage pressure release channel is communicated with the outside of the separation cutting plates through a second-stage pressure release channel and used for pressure release.

Preferably, the fixed repulsion permanent magnet is fixedly connected with the piston sliding cylinder, a clamping frame is fixedly arranged at the top end of the piston sliding cylinder through a clamping installation block, two extrusion clamping plates are symmetrically arranged in the clamping frame in a sliding manner through two sliding extrusion polished rods and two anti-rotating rods, barbs capable of being clamped mutually are arranged on the two extrusion clamping plates and the lifting clamping blocks, reset springs are arranged between the two extrusion clamping plates and the clamping frame, and the two reset springs encircle the corresponding sliding extrusion polished rods respectively.

Preferably, two one ends of the sliding extrusion polished rod, which are far away from the extrusion clamping plate, are movably provided with connecting rods, the clamping installation blocks are also provided with permanent magnet supports in a sliding manner, one ends of the connecting rods, which are far away from the clamping frames, are movably connected with the permanent magnet supports, the clamping installation blocks are also fixedly provided with electromagnets which are magnetically matched with the permanent magnet supports, and the top ends of the piston sliding cylinders are fixedly provided with dustproof ventilation covers.

Preferably, the number of the air supply rotating discs is at least ten, a rotary stirring bar is fixedly arranged between every two adjacent air supply rotating discs, and the output rotating shaft is fixedly connected with one air supply rotating disc.

Preferably, the separation air chamber is fixedly provided with a supercharging air inlet chamber, the supercharging air inlet chamber is fixedly provided with a driving motor, an output shaft of the driving motor is fixedly connected with an input end of the planetary gearbox through a central rotating shaft, and two ends of the central rotating shaft are respectively and fixedly provided with a secondary supercharging air inlet turbine and a primary supercharging air inlet turbine.

Preferably, the primary charge air turbine is disposed within the charge air chamber, and the secondary charge air turbine is disposed within the tapered inlet separation duct.

Compared with the prior art, the invention has the following beneficial effects: (1) The invention adopts the design without filter element, can be used in the environment with more dust, and does not need to replace the filter element, thereby improving the efficiency of pressurizing the gas; (2) According to the stop assembly provided by the invention, the space at two sides is isolated by adopting the three-layer separation cutting plate, so that the isolation stability is effectively ensured; (3) According to the PE communication pipeline cutting device, the pneumatic execution assembly and the remote control module are arranged, so that the PE communication pipeline can be cut off quickly in a remote mode.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the air intake module structure of the present invention.

FIG. 3 is a schematic view of the structure of the plenum chamber of the present invention.

FIG. 4 is a schematic diagram of the structure of the separation chamber of the present invention.

FIG. 5 is a schematic view of the structure of the tapered inlet separator tube of the present invention.

FIG. 6 is a schematic view of the structure of the air plenum of the present invention.

FIG. 7 is a schematic view of the structure of the air-feeding rotary disk of the present invention.

Fig. 8 is a schematic view of the structure of the piston plate of the present invention.

Fig. 9 is a cross-sectional view of the piston slide cartridge of the present invention.

FIG. 10 is a schematic view of the piston air chamber structure of the present invention.

FIG. 11 is a schematic view of the structure of the locking frame of the present invention.

Fig. 12 is a schematic view of the structure of the stop assembly of the present invention.

FIG. 13 is a top view of the cutoff chamber structure of the present invention.

FIG. 14 is a cross-sectional view of a cutoff chamber structure according to the present invention.

FIG. 15 is a schematic view showing the internal structure of the partition cutting plate of the present invention.

In the figure: 101-driving a motor; 102-a pressurized intake chamber; 103-separating air chamber; 1031-a spin-in port; 104-a conical inlet separator tube; 105-airway tube; 1051-safety vent; 106-spiral sheets; 107-a first stage booster intake turbine; 108-a central spindle; 109-a two-stage charge air intake turbine; 110-planetary gearbox; 111-air supply chamber; 112-rotating disc with air supply; 1121-rotating a toggle bar; 113-an output spindle; 201-a piston slide cylinder; 2011-an air guide groove; 202-clamping the mounting block; 203-a clamping frame; 204-an electromagnet; 205-permanent magnet support; 206-a connecting rod; 207-pressing the clamping plate; 208-a return spring; 209-sliding extrusion of the polish rod; 210-anti-rotation rod; 211-lifting a clamping block; 212-a piston plate; 2121-piston air chamber; 213-air inlet nozzle; 214-a dustproof ventilation cover; 301-a cutting chamber; 302-control room; 303-repelling permanent magnets; 304-a split cutoff slide bar; 305-a dynamic repulsive permanent magnet; 306-a tie rod; 307-elastic component support plates; 308-an elastic component; 309-dividing the cut-off plate; 3091-sliding channel; 3092-two stage pressure relief channel; 3093-first stage pressure relief channel; 4-connecting the end pipe; 5-remote control module.

Detailed Description

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1-15, the invention provides a remote pneumatic cut-off valve for a PE pipeline, which comprises a connecting end pipe 4, wherein a cut-off component is fixedly arranged on the connecting end pipe 4, the cut-off component comprises a cut-off chamber 301, three separation cut-off plates 309 are slidably arranged in the cut-off chamber 301, a control chamber 302 is fixedly arranged on the cut-off chamber 301, a fixed rejection permanent magnet 303 is fixedly arranged on the control chamber 302, a separation cut-off plate sliding rod 304 which is in sliding fit with the three separation cut-off plates 309 is fixedly arranged on the fixed rejection permanent magnet 303, a pull rod 306 is fixedly arranged in the middle of the fixed rejection permanent magnet 303, an elastic component supporting plate 307 is fixedly arranged on the pull rod 306, a movable rejection permanent magnet 305 which is mutually repelled with the fixed rejection permanent magnet 303 is fixedly arranged on the elastic component supporting plate 307 (a spring can be used for replacing the movable rejection permanent magnet 305 according to the use environment, the spring is circumferentially arranged on the separation cut-off plate sliding rod 304, so that two ends of the spring 303 are fixedly arranged with the fixed rejection permanent magnet and the elastic component supporting plate 307), and a pneumatic executing component is fixedly arranged on the fixed rejection permanent magnet 303; an elastic member 308 is disposed between the elastic member support plate 307 and each of the partition cutting plates 309, the elastic member 308 is wound around the partition cutting plate slide bar 304, and the elastic member support plate 307 is slidably fitted to the partition cutting plate slide bar 304. Each partition cutting plate 309 is provided with two sliding channels 3091 in sliding fit with the sliding rods 304 of the partition cutting plates, the two sliding channels 3091 are communicated through a first-stage pressure release channel 3093, and the first-stage pressure release channel 3093 is communicated with the outside of the partition cutting plate 309 through a second-stage pressure release channel 3092 for pressure release.

The pneumatic execution assembly comprises a piston sliding cylinder 201, an air guide groove 2011 is formed in the bottom of the inner wall of the piston sliding cylinder 201, an air inlet nozzle 213 communicated with the air guide groove 2011 is fixedly arranged at the bottom of the piston sliding cylinder 201, a piston plate 212 is slidably arranged in the piston sliding cylinder 201, a lifting clamping block 211 is fixedly arranged on the piston plate 212, the lifting clamping block 211 is fixedly arranged at the top end of a pull rod 306, and a piston air chamber 2121 communicated with the air guide groove 2011 is formed in the piston plate 212; the fixed repulsion permanent magnet 303 is fixedly connected with the piston sliding cylinder 201, the top end of the piston sliding cylinder 201 is fixedly provided with a clamping frame 203 through a clamping installation block 202, two extrusion clamping plates 207 are symmetrically arranged in the clamping frame 203 in a sliding manner through two sliding extrusion polished rods 209 and two anti-rotation rods 210, the two extrusion clamping plates 207 and the lifting clamping block 211 are provided with barbs which can be mutually clamped, reset springs 208 are arranged between the two extrusion clamping plates 207 and the clamping frame 203, and the two reset springs 208 respectively encircle on the corresponding sliding extrusion polished rods 209. The two sliding extrusion polished rods 209 are kept away from the one end of extrusion cardboard 207 and all movably mounted has connecting rod 206, still slidable mounting has permanent magnetism support 205 on the block installation piece 202, and two connecting rod 206 keep away from the one end and permanent magnetism support 205 swing joint of block frame 203, still fixed mounting have with permanent magnetism support 205 magnetic force complex electromagnet 204 on the block installation piece 202, the top fixed mounting of piston slide cylinder 201 has dustproof ventilative lid 214.

An air inlet module is fixedly installed on the control chamber 302, the air inlet module comprises an air supply chamber 111, the inside of the air supply chamber 111 is communicated with an air inlet nozzle 213 through an air guide pipe 105, a safety pressure relief hole 1051 for overpressure protection is formed in the air guide pipe 105, an air supply rotary disc 112 is rotatably installed in the air supply chamber 111, a planetary gearbox 110 is fixedly installed in the air supply chamber 111, the output end of the planetary gearbox 110 is fixedly connected with the air supply rotary disc 112 through an output rotary shaft 113, a conical air inlet separation pipe 104 is fixedly installed on the air supply chamber 111, a separation air chamber 103 is fixedly installed on the conical air inlet separation pipe 104, at least nine screw-in openings 1031 are formed in the separation air chamber 103 along the tangential direction of the surface of the separation air chamber 103, a spiral sheet 106 is matched with the inner wall of the separation air chamber 103, and a remote control module 5 for controlling a driving motor 101 and an electromagnet 204 is fixedly installed on the control chamber 302. At least ten air supply rotating discs 112 are arranged, a rotary stirring bar 1121 is fixedly arranged between every two adjacent air supply rotating discs 112, and an output rotating shaft 113 is fixedly connected with one air supply rotating disc 112. The separation air chamber 103 is fixedly provided with a pressurizing air inlet chamber 102, the pressurizing air inlet chamber 102 is fixedly provided with a driving motor 101, an output shaft of the driving motor 101 is fixedly connected with an input end of the planetary gearbox 110 through a central rotating shaft 108, and two ends of the central rotating shaft 108 are respectively fixedly provided with a secondary pressurizing air inlet turbine 109 and a primary pressurizing air inlet turbine 107. A primary booster intake turbine 107 is provided in the booster intake chamber 102, and a secondary booster intake turbine 109 is provided in the tapered intake separation pipe 104.

The invention discloses a PE pipeline remote pneumatic cut-off valve, which has the following working principle: the device body is installed in the PE pipe to be cut (in series) by connecting the header pipes 4. When the connection is needed, the driving motor 101 is started, the output shaft of the driving motor 101 drives the central rotating shaft 108 to rotate, the central rotating shaft 108 drives the input shaft of the planetary gearbox 110 to rotate, the output shaft of the planetary gearbox 110 drives the air supply rotating disc 112 to rotate through the output rotating shaft 113, meanwhile, the rotation of the central rotating shaft 108 drives the primary supercharging air inlet turbine 107 and the secondary supercharging air inlet turbine 109 to rotate, the primary supercharging air inlet turbine 107 rotates to send external air into the supercharging air inlet chamber 102, then the external air is injected into the separation air chamber 103 along the tangential direction through the plurality of screw-in openings 1031, the air flow at the moment rotates, then the air flow continuously rotates under the action of the screw sheets 106, and if dust particles are mixed in the air entering the supercharging air inlet chamber 102, the dust particles also rotate along with the rotation, and the rotating dust particles are far away from the center of the separation air chamber 103, moving to the edge of the inner wall of the separation air chamber 103, then flowing out from the gap between the separation air chamber 103 and the conical air inlet separation pipe 104, and clean air is collected in the center (axis position) of the separation air chamber 103, when the air enters into the conical air inlet separation pipe 104, the air is sent into the middle part of the air supply rotary disk 112 under the action of the two-stage supercharging air inlet turbine 109, and fills the inside of the air supply rotary disk 111, the rotating air supply rotary disk 112 rotates the air inside of the air supply rotary disk 111, and the rotating air is thrown into the air guide pipe 105, as shown in fig. 7, the length of the rotary stirring bar 1121 does not extend to the edge of the air supply rotary disk 112, so that the path along which the air in the edge position of the air supply rotary disk 112 where the rotary stirring bar 1121 is not arranged is curved, this is because the air molecules linearly moving in the rotating air feed rotary disk 112 are offset from the air feed rotary disk 112 by inertia, and the air is rotated at the position where the rotation dial 1121 is not provided because the air is a viscous fluid, so that the air feed rotary disk 112 rotates the air. The pressurized air enters the air inlet nozzle 213 through the air duct 105, when the pressure is too high, part of the pressure is discharged through the safety pressure release hole 1051, at this time, the air enters the air guide groove 2011 through the air inlet nozzle 213 and then enters the piston air chamber 2121, at this time, the piston plate 212 moves upwards on the inner wall of the piston sliding cylinder 201, so as to drive the lifting clamping block 211 and the pull rod 306 to move upwards, and when the lifting clamping block 211 moves to the top end and is clamped with the two pressing clamping plates 207, the driving of the motor 101 is stopped. Meanwhile, the pull rod 306 moves upwards to drive the elastic component support plate 307 to move upwards, then the movable repulsive permanent magnet 305 overcomes the repulsive force (elastic force if a spring is arranged) between the movable repulsive permanent magnet 303 and the fixed repulsive permanent magnet 303, and then the elastic component 308 drives the separation cutting plate 309 to move upwards to draw the separation cutting plate 309 in the cutting chamber 301 away, so that the cutting chamber 301 is in a communicating state. When the switch needs to be turned off, only the electromagnet 204 needs to be controlled, the electromagnet 204 generates magnetic force to push away the permanent magnet support 205, the permanent magnet support 205 drives the sliding extrusion polished rod 209 to move through the two connecting rods 206, so that the two extrusion clamping plates 207 are far away from each other, the reset spring 208 is compressed (the reset spring 208 is used for resetting the initial position of the extrusion clamping plates 207, when the lifting clamping block 211 moves between the two extrusion clamping plates 207, the extrusion clamping plates 207 are clamped), at this moment, the lifting clamping block 207 is separated from the lifting clamping block 211, at this moment, the lifting clamping block 211 moves downwards under the action of the repulsive force between the fixed repulsive permanent magnet 303 and the movable repulsive permanent magnet 305, and drives the piston plate 212 to move downwards, air in the piston sliding cylinder 201 is discharged, the air enters the air chamber 111 along the air guide groove 2011, the air inlet nozzle 213 and the air guide tube 105 (part of the air is discharged from the safety pressure relief hole 1051), and the air in the air chamber 111 is discharged along the path of the air entering.

Claims

1. The utility model provides a long-range pneumatic trip valve of PE pipeline, includes connecting end pipe (4), its characterized in that: a stop assembly is fixedly arranged on the connecting end head pipe (4), the stop assembly comprises a cutting chamber (301), three separation cutting plates (309) are slidably arranged in the cutting chamber (301), a control chamber (302) is fixedly arranged on the cutting chamber (301), a fixed rejection permanent magnet (303) is fixedly arranged on the control chamber (302), a separation cutting plate sliding rod (304) which is in sliding fit with the three separation cutting plates (309) is fixedly arranged on the fixed rejection permanent magnet (303), a pull rod (306) is further slidably arranged in the middle of the fixed rejection permanent magnet (303), an elastic assembly supporting plate (307) is fixedly arranged on the pull rod (306), a rejection permanent magnet (305) which is mutually repelled with the fixed rejection permanent magnet (303) is fixedly arranged on the elastic assembly supporting plate (307), and a pneumatic execution assembly is fixedly arranged on the fixed rejection permanent magnet (303);

the pneumatic execution assembly comprises a piston sliding cylinder (201), an air guide groove (2011) is formed in the bottom of the inner wall of the piston sliding cylinder (201), an air inlet nozzle (213) communicated with the air guide groove (2011) is fixedly arranged at the bottom of the piston sliding cylinder (201), a piston plate (212) is slidably arranged in the piston sliding cylinder (201), a lifting clamping block (211) is fixedly arranged on the piston plate (212), the lifting clamping block (211) is fixedly arranged at the top end of a pull rod (306), and a piston air chamber (2121) communicated with the air guide groove (2011) is formed in the piston plate (212);

an air inlet module is fixedly arranged on the control chamber (302), the air inlet module comprises an air supply chamber (111), the inside of the air supply chamber (111) is communicated with an air inlet nozzle (213) through an air duct (105), a safety pressure relief hole (1051) for overpressure protection is formed in the air duct (105), an air supply rotary disc (112) is rotatably arranged in the air supply chamber (111), a planetary gearbox (110) is fixedly arranged in the air supply chamber (111), the output end of the planetary gearbox (110) is fixedly connected with the air supply rotary disc (112) through an output rotary shaft (113), a conical air inlet separating tube (104) is fixedly arranged on the air supply chamber (111), a separating air chamber (103) is fixedly arranged on the conical air inlet separating tube (104), at least nine rotary inlets (1031) which are arranged along the tangential direction of the surface of the separating air chamber (103) are arranged on the separating air chamber (103), a spiral sheet (106) is matched with the inner wall of the separating air chamber (103), a remote driving motor (102) for controlling a driving motor (101) and an electromagnet (103) are fixedly arranged on the air supply chamber (302), the air supply chamber (102) is fixedly arranged on the separating air supply chamber (102), an output shaft of the driving motor (101) is fixedly connected with an input end of the planetary gearbox (110) through a central rotating shaft (108), and two ends of the central rotating shaft (108) are fixedly provided with a secondary supercharging air inlet turbine (109) and a primary supercharging air inlet turbine (107) respectively;

the permanent magnet type piston sliding cylinder is characterized in that the fixed repulsive permanent magnet (303) is fixedly connected with the piston sliding cylinder (201), the top end of the piston sliding cylinder (201) is fixedly provided with a clamping frame (203) through a clamping installation block (202), two clamping plates (207) are symmetrically arranged in the clamping frame (203) through two sliding extrusion polish rods (209) and two anti-rotation rods (210) in a sliding mode, the two clamping plates (207) and the lifting clamping blocks (211) are provided with barbs which can be clamped mutually, reset springs (208) are arranged between the two clamping plates (207) and the clamping frame (203), the two reset springs (208) respectively encircle on corresponding sliding extrusion polish rods (209), one ends of the two sliding extrusion polish rods (209) away from the clamping plates (207) are movably provided with connecting rods (206), the two permanent magnet supports (205) are further arranged on the clamping installation block (202) in a sliding mode, one ends of the two connecting rods (206) away from the clamping frame (203) are movably connected with the permanent magnet supports (205), and the two permanent magnet supports (205) are further provided with magnetic force covers (204) which are fixedly arranged on the clamping block (202) in a sliding mode, and the piston sliding cylinder (201) is fixedly provided with a dust-proof cover.

2. The PE pipeline remote pneumatic shut-off valve of claim 1, wherein: elastic components (308) are arranged between the elastic component supporting plates (307) and each separation cutting plate (309), the elastic components (308) encircle the separation cutting plate sliding rods (304), and the elastic component supporting plates (307) are in sliding fit with the separation cutting plate sliding rods (304).

3. The PE pipeline remote pneumatic shut-off valve of claim 2, wherein: every separate cut-off board (309) on all set up two with separate cut-off board slide bar (304) sliding fit's slip passageway (3091), through one-level pressure release passageway (3093) intercommunication between two slip passageways (3091), one-level pressure release passageway (3093) and separate the outside of cut-off board (309) through second grade pressure release passageway (3092) intercommunication for the pressure release.

4. A PE pipe remote pneumatic shut-off valve according to claim 3, characterized in that: the number of the air supply rotating discs (112) is at least ten, rotating toggle bars (1121) are fixedly arranged between every two adjacent air supply rotating discs (112), and the output rotating shaft (113) is fixedly connected with one air supply rotating disc (112).

5. The remote pneumatic shut-off valve for PE pipelines of claim 4, characterized in that: the primary supercharged air inlet turbine (107) is arranged in the supercharged air inlet chamber (102), and the secondary supercharged air inlet turbine (109) is arranged in the conical air inlet separating tube (104).