CN104514632A - Rotating vane-type high efficiency air filter unit used for gas turbine - Google Patents
Rotating vane-type high efficiency air filter unit used for gas turbine Download PDFInfo
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- CN104514632A CN104514632A CN201410697372.4A CN201410697372A CN104514632A CN 104514632 A CN104514632 A CN 104514632A CN 201410697372 A CN201410697372 A CN 201410697372A CN 104514632 A CN104514632 A CN 104514632A
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Abstract
The invention belongs to the technical field of a gas turbine, discloses a rotating vane-type high efficiency air filter unit used for the gas turbine, and solves the problem of low filtration efficiency caused by insufficient use of part of filter layers of a filter cylinder in the prior art. The rotating vane-type high efficiency air filter unit comprises a low efficiency filtering device and a self-cleaning filter, the low efficiency filtering device and the self-cleaning filter are arranged in an air inlet passage of the gas turbine at interval, the self-cleaning filter comprises a plurality of filter cylinders which are in up and down arrangement in the filter cylinders in the air inlet passage, the filter cylinders are provided with back blowing pipes which are communicated with an external compressed air source by pipelines,; the filter cylinder comprises a filter cylinder skeleton, the filter cylinder skeleton comprises an outer metal mesh layer and an inner metal mesh layer, the outer metal mesh layer and the inner metal mesh layer form the three-side circumambient cylindrical filter cylinder skeleton, a filter layer is arranged between the outer metal mesh layer and the inner metal mesh layer, the inner metal mesh layer is provided with a spiral flow guide strip, and the spiral flow guide strip is slantly arranged on the inner metal mesh layer.
Description
Technical field
The invention belongs to gas turbine technology field, be specifically related to a kind of blade-rotation air filtering apparatus for gas turbine, the present invention can also be used for the air purification filter of other field.
Background technique
Gas turbine be a kind of using the gas of continuous-flow as working medium the thermal power transfer rotary power machinery that is mechanical work.In the main flow of air and combustion gas, primarily of this three large parts composition gas turbine cycle of gas compressor, firing chamber and combustion gas turbine.
Gas compressor sucks air from ambient atmosphere environment, and compresses step by step through axial-flow compressor and make it supercharging, simultaneously humidity of the air also corresponding raising; Pressurized air is pressed to firing chamber and the combustion gas of fuel mix production High Temperature High Pressure sprayed into; And then enter into turbine expansion work, promote turbine and drive gas compressor High Rotation Speed together with outer load rotor, the chemical energy achieving gas and liquid fuel is mechanical energy, and exports electric work.
The inlet stream of gas turbine blower and the combustion air of gas turbine must carry out purified treatment before being introduced into gas compressor.Modal is adopt the fabric filter of machinery to purify above-mentioned air inlet, and the corrosive and dirty particle of preventing belt enters gas compressor and turbine, thus prevents corrosion and the breakage of equipment, and the workload reducing cleaning and keep in repair.Gas turbine for the production of the energy needs a large amount of combustion airs, therefore, even the impurity of trace all can cause in use producing a large amount of sediments, so require filtration combustion air as far as possible effectively.
Prior art all adopts the cartridge filter of low efficient filter and self-cleaning filter to carry out filtration, purification, such as application number be 200810234512.9 patent of invention disclose a kind of hook type air filter cartridge, comprise the dividing plate in filtration barrel body and casing, the wherein vent of filtration barrel body upper end on casing internal partition, interior annular facade is connected with at least two to be spaced and the parallel hook plate protruded from above annular top surface, vent edge on casing internal partition is shaped with the breach suitable with hook plate, when hook plate is headed in breach, it is lower to the upper surface flush with casing internal partition, the lower surface of seal ring and casing internal partition is fitted, filtration barrel body upper end spiral-lock has the upper fixed cover of annular, and its lower end spiral-lock has the lower fixed cover of closed filtration barrel body lower end surface, the inside and outside annular facade that the inside and outside circle edge that the annular surface of upper fixed cover also has circular top plane and annularly pushes up plane bends, circular top plane is fixedly connected with seal ring, hook plate waits point interval along the ring week of upper fixed cover, the profile of hook plate is the C shape that integrally bending becomes arc, and breach is arc, and the lower edge of hook plate C shape epimere is formed with hypotenuse, and hypotenuse and horizontal plane angle 5-15 to be spent.
Application number be 200820039421.5 utility model patent disclose one more core type energy-saving air cartridge filter, be made up of upper and lower end cap and the inside and outside protecting wire net of tubular, filter core is contained in tubular protecting wire net, the upper and lower end cap liner inner end cap of filter cylinder, upper and lower inner end cap and the inside and outside protecting wire net of tubular are fixed at the upper and lower end of air filtration cartridge respectively, and filter core is placed in inside and outside tubular between protecting wire net, the shape of cartridge filter and filter core is cylindrical tube, conic tube, elliptical cylinder.
Application number be 201110246200.1 patent of invention disclose a kind of detachable air filter cartridge, comprise upper cover and lower cover, interior Mild Steel Expanded Sheets and outer Mild Steel Expanded Sheets are arranged between upper cover and lower cover, filter core is arranged between interior Mild Steel Expanded Sheets and outer Mild Steel Expanded Sheets, on cover and be provided with sealing gasket, ringwise, the inward flange of upper cover is provided with in-flanges to upper cover, the outward edge of upper cover is provided with flanging, and the inner side of in-flanges is symmetrically arranged with at least two locking lugs; Lower cover is rounded, and the outward edge of lower cover is provided with lower cover flange, and the central authorities of lower cover are provided with sphere projection, and the center of lower cover is provided with mounting hole, and the sphere projection of lower cover is connected with locking screw, locking screw quantity and position corresponding with locking lug; Be provided with sealing gasket between upper cover and filter core, be provided with lower seal pad between lower cover and filter core, upper cover and lower cover are by locking screw and lock the two ends that upper sealing gasket and lower seal pad to be pressed on filter core, interior Mild Steel Expanded Sheets and outer Mild Steel Expanded Sheets by lug.Filter core, interior Mild Steel Expanded Sheets and outer Mild Steel Expanded Sheets are cylindrical shape.Filter core, interior Mild Steel Expanded Sheets and outer Mild Steel Expanded Sheets are cone barrel type.
Application number be 201120108628.5 utility model patent disclose a kind of air filter cartridge for fan, comprise cylindrical skeleton, the end face of skeleton covers top board, and circumferential surface and the end face of skeleton are coated with filter cloth cover.
Application number be 201420050148.1 utility model patent disclose a kind of gas mould blower cartridge filter, comprise cylindrical shell, one end of cylindrical shell is provided with filter screen, cylindrical shell is made up of the filtration grating that many are left gap each other, cylindrical shell is also provided with fixing bolt, the suction port end of cylindrical shell is provided with guide pipe, and guide pipe is inclined upwardly into 60 ° to 90 °; Spacing between filtration grating on cylindrical shell is 3-5mm.Sieves strip adoption metal bar or plastic strip are made.
As the cartridge filter told about above, pressurized air is all directly introduced in cartridge filter by breathing pipe, and is filtered by the filter core be arranged on cartridge filter.But existing cartridge structure design, because the pressurized air introduced by breathing pipe all also exists pressure, therefore the filter element filtering effect facing breathing pipe is better, and just not there is not the low problem of utilization efficiency to the filter core of breathing pipe, thus causes the inefficient problem of filter cartridge.
Summary of the invention
The problem that the filter efficiency that the present invention exists in order to the Partial filtration layer solving the existence of existing cartridge filter does not fully use is low, and a kind of blade-rotation air filtering apparatus for gas turbine is provided, the filter core on cartridge filter can be made to filter, thus improve filter efficiency.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of blade-rotation air filtering apparatus for gas turbine, comprise thick effect filtrating equipment and self-cleaning filter, described thick effect filtrating equipment and self-cleaning filter interval be arranged in the gas-entered passageway of gas turbine, it is characterized in that, described self-cleaning filter comprises multiple cartridge filter in gas-entered passageway that is arranged above and below, described cartridge filter is equipped with the anti-blowpipe be communicated with through pipeline external source of compressed air, described anti-blowpipe is arranged in the gas-entered passageway of cartridge filter rear end, described anti-blowpipe is connected with flow guide device, described flow guide device is arranged between cartridge filter and anti-blowpipe, described cartridge filter comprises cartridge filter skeleton, described cartridge filter skeleton is made up of outer metal net layer and interior metal net layer, described outer metal net layer and interior metal net layer form three around tubular cartridge filter skeleton, filter layer is provided with between described outer metal net layer and interior metal net layer, described interior metal net layer is provided with spiral stream guidance bar, and described spiral stream guidance bar is inclined on interior metal net layer.
The true dip direction of described spiral stream guidance bar is towards cloth gas port.
The length that described spiral stream guidance bar extends interior metal net layer increases gradually along with Hand of spiral.
Described spiral stream guidance bar offers vent.
Described flow guide device is conical, and the summit of described flow guide device contacts with anti-blowpipe, and the bottom surface of described flow guide device is towards cartridge filter, and the center line of the center line of described flow guide device and the center line of anti-blowpipe and cartridge filter on the same line.
Described thick effect filtrating equipment comprises the low efficient filter that connecting rod and polylith are arranged above and below, the upper end thereof of each low efficient filter is in gas-entered passageway, the other end of each low efficient filter is all hinged on same connecting rod, the bottom surface being positioned at gas-entered passageway low efficient filter is bottom hinged with the cylinder or oil hydraulic cylinder that can stretch, and the other end of described cylinder or oil hydraulic cylinder is hinged on the bottom in gas-entered passageway.
Described low efficient filter through connecting rod rotating shaft together with rod hinge connection.
The periphery of described low efficient filter is coated with sealed frame.
Sealing gasket is provided with between described low efficient filter and sealed frame.
Described connecting rod offers pin shaft hole, and described connecting rod rotating shaft, through described pin shaft hole and rod hinge connection, is provided with rubber elasticity block between pin shaft hole and connecting rod rotating shaft.
Compared with prior art, the present invention has following beneficial effect:
Blade-rotation air filtering apparatus for gas turbine of the present invention, comprise thick effect filtrating equipment and self-cleaning filter, thick effect filtrating equipment and self-cleaning filter interval be arranged in the gas-entered passageway of gas turbine, self-cleaning filter comprises multiple cartridge filter in gas-entered passageway that is arranged above and below, cartridge filter is equipped with the anti-blowpipe be communicated with through pipeline external source of compressed air, anti-blowpipe is arranged in the gas-entered passageway of cartridge filter rear end, anti-blowpipe is connected with flow guide device, and flow guide device is arranged between cartridge filter and anti-blowpipe; Cartridge filter comprises cartridge filter skeleton, cartridge filter skeleton is made up of outer metal net layer and interior metal net layer, outer metal net layer and interior metal net layer form three around tubular cartridge filter skeleton, filter layer is provided with between outer metal net layer and interior metal net layer, interior metal net layer is provided with spiral stream guidance bar, and described spiral stream guidance bar is inclined on interior metal net layer.First the air entered in gas-entered passageway filters through thick effect filtrating equipment, then filtered by the cartridge filter of self-cleaning filter, the present invention by being provided with spiral stream guidance bar on interior metal net layer, pressurized air is incorporated into uniformly on filter layer under the effect of spiral stream guidance bar, make the filter layer of whole cartridge filter can both carry out filtration, purification to air, thus improve filter efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, and wherein, the direction of arrow represents the traffic direction of air-flow;
Fig. 2 is the structural representation of cartridge filter of the present invention;
Plan view structural representation when Fig. 3 is low efficient filter device of the present invention unlatching (low efficient filter work);
Side view structural representation when Fig. 4 is low efficient filter device of the present invention unlatching (low efficient filter work);
Structural representation when Fig. 5 is low efficient filter device of the present invention closedown (low efficient filter does not work);
Fig. 6 is the connection diagram of connecting rod of the present invention and connection rotating shaft;
Mark in figure: 1, gas-entered passageway, 2, slightly imitate filtrating equipment, 3, self-cleaning filter, 4, cartridge filter, 5, flow guide device, 6, pipeline, 7, anti-blowpipe, 8, water mist separator, 9, outer metal net layer, 10, filter layer, 11, interior metal net layer, 12, spiral stream guidance bar, 13, vent, 14, low efficient filter, 15, connecting rod, 16, cylinder, 17, sealed frame, 18, rubber elasticity block, 19, connecting rod rotating shaft.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and described embodiment is only the present invention's part embodiment, is not whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments used obtained under creative work prerequisite, belongs to protection scope of the present invention.
Composition graphs 1 and Fig. 2, blade-rotation air filtering apparatus of the present invention, comprise thick effect filtrating equipment 2 and self-cleaning filter 3, in the gas-entered passageway 1 being arranged on gas turbine at described thick effect filtrating equipment 2 and self-cleaning filter 3 interval, described self-cleaning filter 3 comprises multiple cartridge filter 4 in gas-entered passageway 1 that is arranged above and below, described cartridge filter 4 is equipped with the anti-blowpipe 7 be communicated with external compressed air source through pipeline 6, described anti-blowpipe 7 is arranged in the gas-entered passageway 1 of cartridge filter 4 rear end, anti-blowpipe 7 is connected with flow guide device 5, flow guide device 5 is arranged between cartridge filter 4 and anti-blowpipe 7, described cartridge filter 4 comprises cartridge filter skeleton, described cartridge filter skeleton is made up of outer metal net layer 9 and interior metal net layer 11, described outer metal net layer 9 and interior metal net layer 11 form three around tubular cartridge filter skeleton, filter layer 10 is provided with between described outer metal net layer 9 and interior metal net layer 11, described interior metal net layer 11 is provided with spiral stream guidance bar 12, and described spiral stream guidance bar 12 is inclined on interior metal net layer 11.First the air entered in gas-entered passageway filters through thick effect filtrating equipment 2, then filtered by the cartridge filter 4 of self-cleaning filter 3, the present invention by being provided with spiral stream guidance bar 12 on interior metal net layer 11, pressurized air is incorporated into uniformly on filter layer 10 under the effect of spiral stream guidance bar 12, make the filter layer 10 of whole cartridge filter 4 can both carry out filtration, purification to air, thus improve filter efficiency.
The suction port towards cartridge filter 4 that spiral stream guidance bar 12 of the present invention tilts, makes the air entered in cartridge filter 4 can be introduced directly on spiral stream guidance bar 12, improves the ability of spiral stream guidance bar 12 distributed air, thus improves filter efficiency of the present invention.
The present invention can be disperseed the pressurized air that anti-blowpipe 7 sprays by flow guide device 5, improves blowback effect.Preferably, described flow guide device 5 is conical, the summit of described flow guide device 5 contacts with anti-blowpipe 7, and the bottom surface of described flow guide device 5 is towards cartridge filter 4, and the center line of the described center line of flow guide device 5 and the center line of anti-blowpipe and cartridge filter on the same line.By flow guide device 5 is set to taper shape, pressurized air can be disperseed uniformly along the outer round surface of flow guide device 5, cartridge filter 4 all directions can both be jetted, improve the effect of blowback further, improve the working life of cartridge filter.
As a kind of preferred mode of the present invention, the length that spiral stream guidance bar 12 extends interior metal net layer 11 increases gradually along with Hand of spiral, the ability of spiral stream guidance bar 12 air distribution can be improved further, spiral stream guidance bar 12 before and after making can both distribute air, makes whole filter layer 10 to carry out filtration, purification.
Spiral stream guidance bar 12 of the present invention offers vent 13, is convenient to the mobility improving air, thus improves the filtering effect of filter layer 10.
Composition graphs 3, Fig. 4 and Fig. 5, thick effect filtrating equipment 2 comprises the low efficient filter 14 that connecting rod 15 and polylith are arranged above and below, the upper end thereof of each low efficient filter 14 is in gas-entered passageway 1, the other end of each low efficient filter 14 is all hinged on same connecting rod 15, the bottom surface being positioned at gas-entered passageway 1 low efficient filter 14 is bottom hinged with the cylinder 16 or oil hydraulic cylinder that can stretch, and the other end of cylinder 16 or oil hydraulic cylinder is hinged on the bottom in gas-entered passageway 1.One end of each low efficient filter 14 is hinged in gas-entered passageway, and the other end is hinged with connecting rod 15, and the low efficient filter 14 being positioned at lower end is hinged with cylinder 16 or oil hydraulic cylinder, makes each low efficient filter 14 can rotate thus form the structure of blade-rotation.When needs low efficient filter 14 works time (haze weather, catkin weather etc.), the setting (with reference to accompanying drawing 3 and Fig. 4) that each low efficient filter 14 tilts slightly imitates filtration in the gas-entered passageway 1 of gas turbine, coarse filtration is carried out to the air entered, filter out large particle thus protect self-cleaning filter, improving the working life of self-cleaning filter 3; In time not needing low efficient filter 14 to work, connecting rod 15 moves up and drives each low efficient filter 14 to rotate until horizontal position (with reference to accompanying drawing 5) under the effect of cylinder 16 or oil hydraulic cylinder, there is between neighbouring low efficient filter 14 passage of air flowing, directly utilize self-cleaning filter 3 to filter.Thus realize to decide opening and closing low efficient filter 14 according to weather, solve the impact of the filter layer 10 not using low efficient filter 14 on self-cleaning filter 3, avoid the impact of Long-Time Service low efficient filter 14 on gas handling system crushing simultaneously.
The present invention is simultaneously arranged in gas-entered passageway 1, is controlled the opening and closing of low efficient filter 14 by cylinder 16 or oil hydraulic cylinder, without the need to artificial unloading and installation, reduces labour cost.
The present invention by manually carrying out the flexible of control cylinder or oil hydraulic cylinder, also can arrange air quality probe and detecting air quality, and the SC sigmal control cylinder 16 of air quality probe or the flexible of oil hydraulic cylinder, improve practicability of the present invention.Cylinder 16 of the present invention or oil hydraulic cylinder also can be replaced with the shrinking structure of mechanical structure, as long as can realize Telescopic, all belong to protection scope of the present invention.
With reference to Fig. 6, as the mode of a kind of selection of the present invention, low efficient filter 14 is hinged through connecting rod rotating shaft 19 and connecting rod 15.Connecting rod 15 offers pin shaft hole, connecting rod rotating shaft 19 through described pin shaft hole and connecting rod 15 hinged, be provided with rubber elasticity block 18 between pin shaft hole and connecting rod rotating shaft 19, thus realize the sealing between connecting rod 15 and connecting rod rotating shaft 19.
The periphery of low efficient filter 14 of the present invention is coated with sealed frame 17, improves the effect of sealing, thus improves airfiltering efficiency.
Further, sealing gasket is provided with between low efficient filter 14 and sealed frame 17.
Being equipped with water mist separator 8 in the gas-entered passageway 1 of thick effect filtrating equipment 2 front end of the present invention, for carrying out water smoke separation to the air entered, ensureing the humidity of filtered air.
Wherein low efficient filter 14, cylinder 16, oil hydraulic cylinder and water mist separator 8 belong to prior art products, and those skilled in the art can understand and understand, and does not repeat them here.
Claims (9)
1. for the blade-rotation air filtering apparatus of gas turbine, comprise thick effect filtrating equipment and self-cleaning filter, described thick effect filtrating equipment and self-cleaning filter interval be arranged in the gas-entered passageway of gas turbine, it is characterized in that, described self-cleaning filter comprises multiple cartridge filter in gas-entered passageway that is arranged above and below, described cartridge filter is equipped with the anti-blowpipe be communicated with through pipeline external source of compressed air, described anti-blowpipe is arranged in the gas-entered passageway of cartridge filter rear end, described anti-blowpipe is connected with flow guide device, described flow guide device is arranged between cartridge filter and anti-blowpipe, described cartridge filter comprises cartridge filter skeleton, described cartridge filter skeleton is made up of outer metal net layer and interior metal net layer, described outer metal net layer and interior metal net layer form three around tubular cartridge filter skeleton, filter layer is provided with between described outer metal net layer and interior metal net layer, described interior metal net layer is provided with spiral stream guidance bar, and described spiral stream guidance bar is inclined on interior metal net layer.
2. the blade-rotation air filtering apparatus for gas turbine according to claim 1, is characterized in that, the length that described spiral stream guidance bar extends interior metal net layer increases gradually along with Hand of spiral.
3. the blade-rotation air filtering apparatus for gas turbine according to claim 2, is characterized in that, described spiral stream guidance bar offers vent.
4. according to the arbitrary described blade-rotation air filtering apparatus for gas turbine of claim 1-3, it is characterized in that, described flow guide device is conical, the summit of described flow guide device contacts with anti-blowpipe, the bottom surface of described flow guide device is towards cartridge filter, and the center line of the center line of described flow guide device and the center line of anti-blowpipe and cartridge filter on the same line.
5. the blade-rotation air filtering apparatus for gas turbine according to claim 4, it is characterized in that, described thick effect filtrating equipment comprises the low efficient filter that connecting rod and polylith are arranged above and below, the upper end thereof of each low efficient filter is in gas-entered passageway, the other end of each low efficient filter is all hinged on same connecting rod, the bottom surface being positioned at gas-entered passageway low efficient filter is bottom hinged with the cylinder or oil hydraulic cylinder that can stretch, and the other end of described cylinder or oil hydraulic cylinder is hinged on the bottom in gas-entered passageway.
6. the blade-rotation air filtering apparatus for gas turbine according to claim 5, is characterized in that, described low efficient filter through connecting rod rotating shaft together with rod hinge connection.
7. the blade-rotation air filtering apparatus for gas turbine according to claim 6, it is characterized in that, the periphery of described low efficient filter is coated with sealed frame.
8. the blade-rotation air filtering apparatus for gas turbine according to claim 7, is characterized in that, be provided with sealing gasket between described low efficient filter and sealed frame.
9. the blade-rotation air filtering apparatus for gas turbine according to claim 8, it is characterized in that, described connecting rod offers pin shaft hole, and described connecting rod rotating shaft, through described pin shaft hole and rod hinge connection, is provided with rubber elasticity block between pin shaft hole and connecting rod rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697372.4A CN104514632A (en) | 2014-11-28 | 2014-11-28 | Rotating vane-type high efficiency air filter unit used for gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697372.4A CN104514632A (en) | 2014-11-28 | 2014-11-28 | Rotating vane-type high efficiency air filter unit used for gas turbine |
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| CN104514632A true CN104514632A (en) | 2015-04-15 |
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| CN201410697372.4A Pending CN104514632A (en) | 2014-11-28 | 2014-11-28 | Rotating vane-type high efficiency air filter unit used for gas turbine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089791A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Rotating vane type efficient noise reduction air filtering device |
| CN108579261A (en) * | 2018-04-28 | 2018-09-28 | 江苏华强新能源科技有限公司 | A kind of gas turbine inlet air system pressure lever type filter cylinder |
| CN113648746A (en) * | 2021-08-17 | 2021-11-16 | 九江七所精密机电科技有限公司 | Pulse injection device for gas turbine |
| CN115475463A (en) * | 2022-09-19 | 2022-12-16 | 国家电投集团郑州燃气发电有限公司 | Gas turbine air cleaner overhauls device |
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| CN203835540U (en) * | 2014-03-24 | 2014-09-17 | 北京京桥热电有限责任公司 | Fuel turbine gas inlet filter device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105089791A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Rotating vane type efficient noise reduction air filtering device |
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| CN113648746A (en) * | 2021-08-17 | 2021-11-16 | 九江七所精密机电科技有限公司 | Pulse injection device for gas turbine |
| CN113648746B (en) * | 2021-08-17 | 2022-12-02 | 九江七所精密机电科技有限公司 | Pulse injection method for gas turbine |
| CN115475463A (en) * | 2022-09-19 | 2022-12-16 | 国家电投集团郑州燃气发电有限公司 | Gas turbine air cleaner overhauls device |
| CN115475463B (en) * | 2022-09-19 | 2023-08-22 | 国家电投集团郑州燃气发电有限公司 | Air filter overhauling device of gas turbine |
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