CN216617682U - Vehicle-mounted gas turbine inlet air filtering system - Google Patents

Abstract

The application discloses an air inlet filtering system of a vehicle-mounted gas turbine, which relates to the technical field of vehicle-mounted gas turbine manufacturing and comprises a turbine unit, wherein a primary filtering pipeline is horizontally arranged on one side of an air inlet of the turbine unit, a fine filtering pipeline is communicated with one end of an air outlet of the primary filtering pipeline, one end of an air inlet of the fine filtering pipeline extends into the air outlet of the primary filtering pipeline and is coaxially arranged with the primary filtering pipeline, and a primary filtering dust exhaust cavity is formed between the primary filtering pipeline and the fine filtering pipeline; the middle part of the fine filtering pipeline in the axial direction is covered with a cylinder type filter, and one end of an air outlet of the fine filtering pipeline is communicated with an air inlet of a compressor of the turbine set. The application has the effects of enhancing the filtering function of the air inlet system of the vehicle-mounted gas turbine and improving the reliability of the operation of the vehicle-mounted gas turbine.

Description

Vehicle-mounted gas turbine inlet air filtering system

Technical Field

The application relates to the technical field of vehicle-mounted gas turbine manufacturing, in particular to a vehicle-mounted gas turbine air inlet filtering system.

Background

The gas turbine is an internal combustion type power machine which takes continuously flowing gas as a working medium to drive an impeller to rotate at a high speed and converts the energy of fuel into useful work; the gas inlet system of the gas turbine has the function of filtering dust and particles in gas, so that clean gas enters the gas turbine from the gas inlet system, and the safe and reliable operation of the gas turbine is ensured.

In related industries, most of gas turbines are fixed gas turbines, and the air environment of a unit is relatively pure, so that the filtering function of an air inlet system of the gas turbine is limited.

In view of the above-mentioned related technologies, the inventor believes that, for a gas turbine installed on an automobile, the gas turbine faces more particulate matter filtering challenges, and particularly, when a gas turbine unit operates in a sand and dust environment, a large amount of sand and dust particles in air enter an air inlet system, which easily causes filter blockage, even breaks the filter and enters a compressor of the gas turbine to cause damage to blades, which affects normal operation of the gas turbine, and there is a need for improvement.

SUMMERY OF THE UTILITY MODEL

In order to strengthen the filtering capability of the vehicle-mounted gas turbine air inlet system and improve the reliability of the operation of the vehicle-mounted gas turbine, the application provides a vehicle-mounted gas turbine air inlet filtering system.

The application provides a pair of on-vehicle gas turbine filtration system that admits air adopts following technical scheme:

an air inlet filtering system of a vehicle-mounted gas turbine comprises a turbine unit, wherein a primary filtering pipeline is horizontally arranged on one side of an air inlet of the turbine unit, a fine filtering pipeline is communicated with one end of an air outlet of the primary filtering pipeline, one end of an air inlet of the fine filtering pipeline extends into an air outlet of the primary filtering pipeline and is coaxially arranged with the primary filtering pipeline, and a primary filtering dust exhaust cavity is formed between the primary filtering pipeline and the fine filtering pipeline; and a cylindrical filter is covered at the axial middle part of the fine filtering pipeline, and one end of the air outlet of the fine filtering pipeline is communicated with the air inlet of the turbine set compressor.

By adopting the technical scheme, when in actual use, after air enters the primary filtering pipeline from the air inlet of the primary filtering pipeline, the air flows at a position close to the inner bottom wall of the primary filtering pipeline because the self weight of large-particle sand dust in the air is larger; when the dust flows to one side of the fine filtering pipeline along the gas flowing direction, large-particle sand dust gradually enters the primary filtering dust discharging cavity due to a gap between the fine filtering pipeline and the primary filtering pipeline; meanwhile, the primarily filtered air flows into a fine filtering pipeline and is secondarily filtered by a cylinder type filter; then, the air after secondary filtration enters a compressor of the turbine set along a fine filtration pipeline for use; with the help of the most large granule sand and dust in the primary filter pipeline filtering air, recycle the little volume dust granule of cartridge filter filtering, set up twice dust removal filtration, effectively strengthen on-vehicle gas turbine air intake system's filtering capability to promote the air quality who gets into in the turbine unit compressor, and then guarantee the reliability of on-vehicle gas turbine operation.

Preferably, a straight cylinder type cyclone separator is arranged at one end of the air inlet of the primary filtering pipeline.

Through adopting above-mentioned technical scheme, during the in-service use, the air passes in the straight cylinder cyclone filters the pipeline for a long time, straight cylinder cyclone throws the bulky sand and dust granule in the air to the pipeline inner wall department of filtering for separate and get into in bulky sand and dust granule and the air current and filter the dust exhaust chamber for a long time, bulky sand and dust granule content in the further filtering air, help strengthening the filter effect of primary filter operation, strengthen on-vehicle gas turbine air intake system's filtering capability, promote the air quality who gets into in the turbine group, thereby further promote the stationarity of on-vehicle gas turbine operation.

Preferably, the tail end of the primary filtering dust exhaust cavity is communicated with a primary filtering dust exhaust pipeline.

Through adopting above-mentioned technical scheme, on-vehicle gas turbine operation in-process, bulky dust particle gets into and just strains the dust exhaust chamber after, because the effect of air current, this partial bulky dust particle gets into and just strains the dust exhaust pipeline from just straining the dust exhaust chamber along just straining the pipeline axial to outside the dust exhaust pipeline discharge system is strained to just, effectively reduce bulky dust particles such as sand and dust and take place in the accumulational condition in the system.

Preferably, a back-blowing system for blowing off dust accumulated on the drum filter is arranged on one side, close to the turbine unit, of the drum filter in the fine filtering pipeline, and a fine filtering dust-discharging pipeline for receiving dust falling from the drum filter is arranged on the side wall of the fine filtering pipeline.

By adopting the technical scheme, after entering the fine filtering pipeline, the air primarily filtered by the primary filtering pipeline flows to one side of the wheel set along the axial direction of the fine filtering pipeline, wherein small-volume dust particles in the air impact and are adhered to one side of the filter screen of the cylindrical filter, which is far away from the wheel set; after the vehicle-mounted gas turbine works for a period of time, a large amount of small-volume dust particles are adhered to one side, close to the straight-barrel type cyclone separator, of the barrel type filter basket, and the small-volume dust particles block meshes of the filter basket of the barrel type filter, so that the ventilation quantity of the barrel type filter is reduced, and the filtering effect of the barrel type filter is further reduced; the back-blowing system is used for blowing off small-volume dust particles adhered to the drum filter, and discharging the small-volume dust particles from the system through the fine filtration dust discharge pipeline, so that normal ventilation operation of the fine filtration pipeline is guaranteed, and normal filtration operation of the drum filter is guaranteed.

Preferably, the tail end of the primary filtering pipeline is communicated with a dust exhaust main pipe, and the fine filtering dust exhaust pipeline is communicated with the dust exhaust main pipe.

Through adopting above-mentioned technical scheme, utilize the dust exhaust house steward intercommunication prefilter dust exhaust pipeline and essence to strain the dust exhaust pipeline, help collecting the processing to the sand and dust granule of filtering.

Preferably, the back-blowing system comprises a back-blowing pipeline, one end of an air inlet of the back-blowing pipeline is communicated with an air outlet of an air compressor of the turbine unit, and an air outlet of the back-blowing pipeline is positioned on one side of the drum filter, which is close to the turbine unit, and blows air to one side of the straight-drum cyclone separator from one side of the turbine unit.

Through adopting above-mentioned technical scheme, treat this on-vehicle gas turbine work after a period, the turbine set compressor air inlet is opened, makes in high-pressure gas lets in the blowback pipeline to blow to the cartridge filter through blowback pipeline gas outlet, and then blow off the sticky tiny dust particle that glues on the cartridge filter, blowback system simple structure, the production of being convenient for helps saving enterprise manufacturing cost.

Preferably, the back flushing system further comprises a differential pressure sensor and a back flushing control valve, the differential pressure sensor is used for detecting the pressure intensity of the fine filtering pipeline at two sides of the cylindrical filter, the back flushing control valve is arranged on the back flushing pipeline, and a controller of the differential pressure sensor is electrically connected with a controller of the back flushing control valve.

By adopting the technical scheme, after the vehicle-mounted gas turbine works for a period of time, a large amount of small dust particles are accumulated on the surface of the filtering basket of the drum type filter to block the meshes of the filtering basket of the drum type filter, so that the ventilation quantity of the drum type filter causes the air pressure difference between the two sides of the drum type filter in the fine filtering pipeline; when the differential pressure sensor senses that the differential pressure reaches a preset value, alarming is carried out, the differential pressure sensor transmits a signal to the back-blowing control valve, and the back-blowing control valve is opened immediately, so that high-pressure gas in a compressor of the turbine set is blown to the cylindrical filter through a back-blowing pipeline, and small dust particles accumulated on the surface of the cylindrical filter are blown off; the pressure in the fine filtration pipeline is monitored by means of the pressure difference sensor, and the back-blowing control valve is triggered by means of the pressure difference, so that the automation level of the back-blowing system is effectively improved.

Preferably, the tail end of the dust exhaust main pipe is provided with a fan, and the fan is positioned behind the joint of the primary filter dust exhaust pipeline, the fine filter dust exhaust pipeline and the dust exhaust main pipeline.

Through adopting above-mentioned technical scheme, outside the dust exhaust house steward discharge system with the help of the fan pressurization with the dust and sand granule of filtering, help further reducing the piling up of dust and sand granule in the system.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the primary filter pipeline is used for filtering large-volume sand dust particles in air, the fine filter pipeline and the cylinder filter are used for filtering small-volume dust particles in the primarily filtered air, and the two dust removing filter structures are arranged to effectively enhance the filter function of the vehicle-mounted gas turbine, so that the quality of the air entering the turbine set is improved, and the operation reliability of the vehicle-mounted gas turbine is ensured;

2. the large-volume sand-dust particles entering the primary filtering pipeline are thrown to the inner wall of the primary filtering pipeline by using the straight-cylinder type cyclone separator, so that the separation operation of most of the large-volume sand-dust particles in the air is realized, the filtering effect on the large-volume sand-dust particles in the air is effectively improved, the quality of the air entering the turbine set is further improved, and the stable operation of the vehicle-mounted gas turbine is further ensured;

3. through setting up the reverse air-blowing system, regularly clear away the small size dust particle of cylinder filter basket on accumulation, help making the essence filter the pipeline and keep stable intake, and then guarantee on-vehicle gas turbine's normal operating.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present application, which mainly shows the operation process of the intake air filtering system of the vehicle-mounted gas turbine.

Fig. 2 is an enlarged view of a portion a in fig. 1, and is mainly used for embodying the working principle of the blowback system.

Reference numerals: 1. a turbine set; 2. primarily filtering the pipeline; 21. a primary filtering dust exhaust cavity; 22. primarily filtering the dust exhaust pipeline; 3. a fine filtration pipeline; 31. fine filtering a dust exhaust pipeline; 4. a cartridge filter; 5. a straight cyclone separator; 6. a blowback system; 61. a differential pressure sensor; 62. a blowback pipeline; 621. a nozzle; 63. a blowback control valve; 7. a dust exhaust main pipe; 8. a fan.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses on-vehicle gas turbine filtration system that admits air.

Referring to fig. 1, the inlet air filtering system of the vehicle-mounted gas turbine comprises a turbine set 1 and a primary filtering pipeline 2 arranged on one side of an air inlet of an air compressor of the turbine set 1, wherein the primary filtering pipeline 2 is horizontally arranged; a fine filtering pipeline 3 is communicated between the air outlet of the primary filtering pipeline 2 and the air inlet of the compressor of the turbine unit 1, one end of the air inlet of the fine filtering pipeline 3 extends into the primary filtering pipeline 2, the fine filtering pipeline 3 and the primary filtering pipeline 2 are coaxially arranged, and a primary filtering dust discharging cavity 21 is formed between the fine filtering pipeline 3 and the primary filtering pipeline 2; a cylinder type filter 4 is arranged in the fine filtering pipeline 3.

When in actual use, air enters the primary filter pipeline 2 from the air inlet of the primary filter pipeline 2, and gradually settles towards the bottom of the primary filter pipeline 2 due to the large mass of the sand dust particles in the air; in addition, due to the action of the airflow direction, the large-volume sand and dust particles gradually move towards one end of the fine filtering pipeline 3 and are finally accumulated in the primary filtering dust discharging cavity 21; then, the primarily filtered air enters a fine filtering pipeline 3, and a cylindrical filter 4 in the fine filtering pipeline 3 performs secondary filtering on the primarily filtered air to remove small-volume dust particles; then, the air after the secondary filtration enters the compressor of the turbine unit 1 along the fine filtration pipeline 3, thereby completing the filtration operation of the air entering the gas turbine.

In order to improve the filtering effect of the vehicle-mounted gas turbine air inlet system, one end of the primary filtering pipeline 2 close to the air outlet of the primary filtering pipeline is provided with a straight cylinder type cyclone separator 5.

When the vertical-cylinder type cyclone dust collector is in actual use, after air enters the primary filtering pipeline 2 from the air inlet of the primary filtering pipeline 2, the vertical-cylinder type cyclone separator 5 throws large-volume sand and dust particles in the air entering the primary filtering pipeline 2 to the inner side wall of the primary filtering pipeline 2, so that the large-volume sand and dust particles are separated from the air; subsequently, as new air continuously enters the primary filter pipe 2, the separated large-volume dust particles gradually move toward one end of the fine filter pipe 3 along the inner wall of the primary filter pipe 2, and finally enter the primary filter dust exhaust chamber 21.

Because, among the filtering operation, little volume particulate matter is strained the basket interception by cartridge filter 4 to glue and glue the one side that is close to the primary filter pipeline 2 at cartridge filter 4 filter basket, for the filter basket mesh that reduces little volume particulate matter shutoff cartridge filter 4, and reduce the condition emergence of cartridge filter 4's air volume, need regularly clean cartridge filter 4 filter basket. In order to improve the convenience of cleaning the filter basket of the cylindrical filter 4, a blowback system 6 is arranged on one side of the cylindrical filter 4, which is close to the pulley unit 1, of the filter basket; correspondingly, a fine filtering dust exhaust pipeline 31 is arranged on the side wall of the fine filtering pipeline 3 below the cylinder type filter 4, and the fine filtering dust exhaust pipeline 31 is communicated with the tail end of the primary filtering dust exhaust cavity 21.

Referring to fig. 2, the blowback system 6 includes a differential pressure sensor 61 for detecting the pressure at the two sides of the cartridge filter 4 of the fine filtration pipeline 3, a blowback pipeline 62 and a blowback control valve 63; wherein, the controller of the differential pressure sensor 61 is electrically connected with the controller of the blowback control valve 63, and the blowback control valve 63 is arranged on the blowback pipeline 62; the air inlet of the blowback pipeline 62 is communicated with the air outlet of the compressor of the turbine unit 1, the air outlet of the blowback pipeline 62 is positioned at one side of the drum filter 4 close to the turbine unit 1, and a plurality of nozzles 621 are arranged at the air outlet of the blowback pipeline 62.

In the filtering operation, small-volume particles are continuously accumulated on the filtering basket of the cylinder type filter 4, and meshes of the filtering basket of the cylinder type filter 4 are gradually blocked, so that the fine filtering pipeline 3 is positioned at two sides of the cylinder type filter 4 to generate pressure difference; after the vehicle-mounted gas turbine runs for a period of time, the differential pressure sensor 61 detects that the differential pressure of the two sides of the cylindrical filter 4 of the fine filtering pipeline 3 reaches a set value, the differential pressure sensor 61 gives an alarm, the controller of the differential pressure sensor 61 transmits a signal to the controller of the back blowing control valve 63, the back blowing control valve 63 is controlled by the controller of the back blowing control valve 63 to open, so that high-pressure gas in the compressor of the turbine unit 1 is blown to the cylindrical filter 4 of the filter basket along the back blowing pipeline 62, small-volume particles on the cylindrical filter 4 of the filter basket fall into the fine filtering dust exhaust pipeline 31, and the cylindrical filter 4 of the filter basket is cleaned accordingly.

Meanwhile, referring to fig. 1, in order to reduce the accumulation of dust particles in the system, a primary filtering dust exhaust pipeline 22 is arranged on the side wall of the primary filtering pipeline 2 below the air outlet of the primary filtering pipeline, and the primary filtering dust exhaust pipeline 22 is communicated with the bottom wall of the primary filtering dust exhaust cavity 21; the tail end of the primary filtering dust exhaust pipeline 22 is communicated with a dust exhaust main pipe 7, and the fine filtering dust exhaust pipeline 31 is communicated with the dust exhaust main pipe 7; in addition, the tail end of the dust exhaust main pipe 7 is provided with a fan 8, and the fan 8 is positioned behind the joints of the primary filter dust exhaust pipeline 22, the fine filter dust exhaust pipeline 31 and the dust exhaust main pipe 7.

After entering the primary filter dust exhaust cavity 21, the large-volume sand and dust particles filtered out after primary filtering move towards the bottom of the primary filter dust exhaust cavity 21 and enter the primary filter dust exhaust pipeline 22 under the action of air flow, and then enter the dust exhaust main pipe 7; small-volume dust particles on the filter basket of the drum type filter 4 fall into the fine filtration dust exhaust pipeline 31 after being cleaned, and enter the dust exhaust main pipe 7 along the fine filtration dust exhaust pipeline 31; subsequently, the impeller of the fan 8 rotates to generate pressure difference, and dust particles in the dust exhaust main pipe 7 are exhausted out of a dust collecting container outside the dust exhaust system, so that the cleaning operation of the gas turbine air inlet filtering system is realized.

The implementation principle of the air inlet filtering system of the vehicle-mounted gas turbine in the embodiment of the application is as follows: in the operation process of the vehicle-mounted gas turbine, after air enters the primary filtering pipeline 2 from the air inlet of the primary filtering pipeline 2, the straight-cylinder type cyclone separator 5 throws large-volume sand particles in the air entering the primary filtering pipeline 2 to the inner side wall of the primary filtering pipeline 2 by using centrifugal force; as new air continuously enters the primary filter pipe 2, the separated large-volume sand particles gradually move towards one end of the fine filter pipe 3 along the inner wall of the primary filter pipe 2, then enter the primary filter dust exhaust cavity 21 and flow into the dust exhaust main pipe 7 along the primary filter dust exhaust pipe 22.

Meanwhile, the primarily filtered air flows into the fine filtering pipeline 3, small-volume dust particles are filtered by the cylindrical filter 4, and the small-volume particles are intercepted by the filter basket of the cylindrical filter 4 and are adhered to one side, close to the primary filtering pipeline 2, of the filter basket of the cylindrical filter 4; along with the continuous accumulation of small-volume particles on the filter basket of the cylinder type filter 4, the fine filter pipeline 3 is positioned at two sides of the cylinder type filter 4 to generate pressure difference; when the differential pressure sensor 61 detects that the differential pressure of the fine filtration pipeline 3 on two sides of the cylinder type filter 4 reaches a set value, the controller of the differential pressure sensor 61 transmits a signal to the controller of the back-blowing control valve 63, and the back-blowing control valve 63 is opened immediately, so that high-pressure gas in the compressor of the turbine set 1 is blown to the filter basket of the cylinder type filter 4 along the back-blowing pipeline 62, and then small-volume particles on the filter basket of the cylinder type filter 4 drop into the fine filtration dust exhaust pipeline 31; the small-volume particles then enter the dust exhaust manifold 7 along the fine filtration dust exhaust pipe 31.

Finally, the fan 8 is started to discharge the sand and dust particles in the dust discharge main pipe 7 into the dust collection container outside the dust discharge system. Adopt this kind of mode to set up filtration system that admits air, effectively strengthen on-vehicle gas turbine air intake system's filter effect, promote the reliability of on-vehicle gas turbine operation, promote simultaneously to carry out clear convenience to gas turbine air intake filtration system.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. An on-vehicle gas turbine filter system that admits air which characterized in that: the device comprises a turbine set (1), wherein a primary filtering pipeline (2) is horizontally arranged on one side of an air inlet of the turbine set (1), a fine filtering pipeline (3) is communicated with one end of an air outlet of the primary filtering pipeline (2), one end of an air inlet of the fine filtering pipeline (3) extends into the air outlet of the primary filtering pipeline (2) and is coaxially arranged with the primary filtering pipeline (2), and a primary filtering dust exhaust cavity (21) is formed between the primary filtering pipeline (2) and the fine filtering pipeline (3); the middle part of the fine filtering pipeline (3) in the axial direction is covered with a cylinder type filter (4), and one end of an air outlet of the fine filtering pipeline (3) is communicated with an air inlet of an air compressor of the turbine set (1).

2. The on-board gas turbine intake air filtration system of claim 1, wherein: and a straight cylinder type cyclone separator (5) is arranged at one end of the air inlet of the primary filtering pipeline (2).

3. The on-board gas turbine intake air filtration system of claim 1, wherein: the tail end of the primary filtering dust exhaust cavity (21) is communicated with a primary filtering dust exhaust pipeline (22).

4. The on-board gas turbine intake air filtration system of claim 3, wherein: a back-blowing system (6) used for blowing off dust on the drum type filter (4) is arranged on one side, close to the wheel set (1), of the drum type filter (4) in the fine filtering pipeline (3), and a fine filtering dust discharging pipeline (31) used for bearing dust falling on the drum type filter (4) is arranged on the side wall of the fine filtering pipeline (3).

5. The on-board gas turbine intake air filtration system of claim 4, wherein: the tail end of the primary filtering pipeline (2) is communicated with a dust exhaust main pipe (7), and the fine filtering dust exhaust pipeline (31) is communicated with the dust exhaust main pipe (7).

6. The on-board gas turbine intake air filtration system of claim 4, wherein: the back flushing system (6) comprises a back flushing pipeline (62), one end of an air inlet of the back flushing pipeline (62) is communicated with an air outlet of an air compressor of the turbine unit (1), and the air outlet of the back flushing pipeline (62) is positioned on one side, close to the turbine unit (1), of the drum filter (4) and blows air to one side of the straight drum type cyclone separator (5) from one side of the turbine unit (1).

7. The on-board gas turbine intake air filtration system of claim 6, wherein: the back flushing system (6) further comprises a pressure difference sensor (61) and a back flushing control valve (64) which are used for detecting the pressure intensity of the fine filtering pipeline (3) on two sides of the cylinder type filter (4), the back flushing control valve (64) is arranged on the back flushing pipeline (62), and a controller of the pressure difference sensor (61) is electrically connected with a controller of the back flushing control valve (64).

8. The on-board gas turbine intake air filtration system of claim 5, wherein: the tail end of the dust exhaust main pipe (7) is provided with a fan (8), and the fan (8) is positioned behind the joint of the primary filter dust exhaust pipeline (22), the fine filter dust exhaust pipeline (31) and the dust exhaust main pipe (7).

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