CN113877316B - Air pre-filtering device for ship gas turbine - Google Patents
Air pre-filtering device for ship gas turbine Download PDFInfo
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- CN113877316B CN113877316B CN202111371112.4A CN202111371112A CN113877316B CN 113877316 B CN113877316 B CN 113877316B CN 202111371112 A CN202111371112 A CN 202111371112A CN 113877316 B CN113877316 B CN 113877316B
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- shaped sliding
- air
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- cavity
- filtering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
- F02C7/055—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with intake grids, screens or guards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/60—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for the intake of internal combustion engines or turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an air pre-filtering device for a ship gas turbine, which comprises a pre-filtering box, wherein a first cavity is formed in the pre-filtering box, an air inlet pipe and an air outlet pipe are fixedly communicated with the pre-filtering box, a moving circular groove is formed in the inner wall of the first cavity, a filtering net is installed on the moving circular groove through a first sliding structure, and a plurality of sealing gaskets are fixedly installed on the outer wall of the filtering net; an installation disc is fixedly installed in the first cavity through two vertical rods. Has the advantages that: when the filter screen takes place to block up, can make the atmospheric pressure increase of atmospheric pressure incasement earlier, then when atmospheric pressure reaches the biggest in the atmospheric pressure case, atmospheric pressure continuation increase in the prefilter case can make the filter screen take place to remove, and the filter screen removes the in-process and can make atmospheric pressure case lower extreme convert by sheltered from the state and not sheltered from the state into to make one-way outlet duct spun gas block up the clearance to the filter screen surface, ensure the device's normal use.
Description
Technical Field
The invention relates to an air pre-filtering device, in particular to an air pre-filtering device for a ship gas turbine.
Background
The boats and ships gas turbine can carry out a preliminary filtration processing to the air that gets into it when using, but current prefilter unit when using, need regularly change or clear up the filter screen, this kind of mode is comparatively loaded down with trivial details, and in the use if contain during more large granule dust impurity in the air, can make and take place to block up in the use, once take place to block up in the use and then can make the internal gas pressure of prefilter case increase fast, appear damaging easily.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides an air pre-filtering device for a ship gas turbine.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air pre-filtering device for a ship gas turbine comprises a pre-filtering box, wherein a first cavity is formed in the pre-filtering box, an air inlet pipe and an air outlet pipe are fixedly communicated with the pre-filtering box, a moving circular groove is formed in the inner wall of the first cavity, a filtering net is installed on the moving circular groove through a first sliding structure, and a plurality of sealing gaskets are fixedly installed on the outer wall of the filtering net;
an installation disc is fixedly installed in the first cavity through two vertical rods, and an extrusion spring is fixedly installed between the installation disc and the filter screen;
the pre-filtering tank is fixedly provided with a plurality of fixing rods, the fixing rods are jointly and fixedly provided with an air pressure tank, the air pressure tank is fixedly communicated with a one-way air inlet pipe and a one-way air outlet pipe, the lower end of the one-way air outlet pipe is communicated with the moving circular groove, the pre-filtering tank is fixedly communicated with a connecting pipe, and the upper end of the connecting pipe is communicated with the filtering screen;
a second cavity is formed in the air pressure box, a lifting plate is arranged in the second cavity through a second sliding structure, and a first reset structure is arranged between the air pressure box and the lifting plate;
an accommodating cavity is formed in the prefilter box and communicated with the movable circular groove, a sealing plate matched with the one-way air outlet pipe is installed in the accommodating cavity through a third sliding structure, and a second reset structure is also installed between the accommodating cavity and the sealing plate;
one side of the filter screen, which is far away from the extrusion spring, is rotatably provided with a scraping rod through a rotating shaft.
In foretell air prefilter for boats and ships gas turbine, first sliding structure comprises bar spout one, bar slider one, a plurality of bar spouts one has been seted up on the inner wall of removal circular slot, fixed mounting has a plurality ofly on the outer wall of filter screen and bar spout one matched with bar slider one.
In foretell air prefilter for boats and ships gas turbine, second sliding structure comprises bar spout two, bar slider two and elastic block, a bar spout two has all been seted up on the both sides lateral wall of cavity two, the equal fixed mounting in both sides of lifter plate has two with bar spout two of the bar slider of two looks complex, two equal fixed mounting has an elastic block on the inner wall of bar spout two, and the bar slider is two in between two corresponding elastic blocks.
In foretell air prefilter for ship gas turbine, first reset structure comprises magnetic sheet one, mounting groove and magnetic sheet two, fixed mounting has magnetic sheet one on the roof of atmospheric pressure case, the mounting groove has been seted up to the upper surface of lifter plate, fixed mounting has magnetic sheet two in the mounting groove, and magnetic sheet one, magnetic sheet two are close to the magnetism of one side the same.
In foretell air prefilter for boats and ships gas turbine, the third sliding structure comprises bar spout three, bar slider three, seted up bar spout three on the diapire that holds the chamber, the lower surface of closing plate is seted up fixed mounting and is had the bar slider three with bar spout three-phase complex.
In the air pre-filtering device for the ship gas turbine, the second reset structure comprises a first magnetic block and a second magnetic block, the inner wall of the accommodating cavity is fixedly provided with the second magnetic block, one end, far away from the filter screen, of the sealing plate is fixedly provided with the first magnetic block matched with the second magnetic block, and the magnetism of the first magnetic block and the magnetism of the corresponding second magnetic block, close to one end, of the sealing plate are the same.
In the air pre-filtering device for the ship gas turbine, the scraping rod is provided with two scraping grooves.
In the air pre-filtering device for the ship gas turbine, the minimum distance between the rotating shaft and one end, close to the air inlet pipe, of the rotating shaft is greater than the shortest straight-line distance between the movable circular groove and the air inlet pipe.
Compared with the prior art, the invention has the advantages that:
1: when the filter screen takes place to block up, can make the atmospheric pressure increase in the atmospheric pressure case earlier, then when atmospheric pressure reached the biggest in the atmospheric pressure case, atmospheric pressure in the prefilter case continued the increase to make the filter screen take place to remove, and the filter screen removes the in-process and can make atmospheric pressure case lower extreme by being sheltered from the state conversion for not sheltered from the state to make one-way outlet duct spun gas block up the clearance to the filter screen surface, ensure the device's normal use.
2: the setting of closing plate plays one to shelter from sealed effect to one-way outlet duct under initial condition to confirm the increase of atmospheric pressure in the atmospheric pressure case, be convenient for follow-up jam clearance to the filter screen.
3: can drive when one-way outlet duct blowout air current and scrape the pole and rotate, utilize the rotation of pole to clean the surface of filter screen, scrape the setting up of groove simultaneously and make the air current can play an impact broken effect to scraping the impurity that the inslot was collected downwards and assaulting the in-process.
Drawings
FIG. 1 is a schematic structural diagram of an air pre-filtering device for a gas turbine of a ship according to the present invention;
FIG. 2 is a first cross-sectional view of a pre-filter box of an air pre-filter device for a marine gas turbine according to the present invention;
FIG. 3 is a second cross-sectional view of a pre-filter box of an air pre-filter device for a marine gas turbine according to the present invention;
FIG. 4 is a bottom view of the seal plate of FIG. 3;
FIG. 5 is a cross-sectional view of the structure of the portion of the plenum box of FIG. 1;
FIG. 6 is a schematic structural diagram of a filter screen portion of an air pre-filtering device for a gas turbine of a ship according to the present invention;
fig. 7 is a schematic structural diagram of an air pressure tank part in an air pre-filtering device for a ship gas turbine according to the present invention.
In the figure: 1 prefiltration case, 2 intake pipes, 3 outlet pipes, 4 cavities I, 5 moving circular grooves, 6 filter screens, 7 strip-shaped chutes I, 8 strip-shaped sliders I, 9 sealing gaskets, 10 upright rods, 11 mounting discs, 12 extrusion springs, 13 fixed rods, 14 air pressure boxes, 15 connecting pipes, 16 one-way intake pipes, 17 one-way outlet pipes, 18 cavities II, 19 lifting plates, 20 strip-shaped chutes II, 21 strip-shaped sliders II, 22 elastic blocks, 23 magnetic plates I, 24 mounting grooves, 25 magnetic plates II, 26 containing cavities, 27 strip-shaped chutes III, 28 strip-shaped sliders III, 29 sealing plates, 30 magnetic blocks I, 31 magnetic blocks II, 32 rotating shafts, 33 scraping rods and 34 scraping grooves.
Detailed Description
Referring to fig. 1, 2 and 6, the air prefilter for the ship gas turbine comprises a prefilter tank 1, wherein a first cavity 4 is formed in the prefilter tank 1, an air inlet pipe 2 and an air outlet pipe 3 are fixedly communicated with the prefilter tank 1, a movable circular groove 5 is formed in the inner wall of the first cavity 4, and a filter screen 6 is mounted on the movable circular groove 5 through a first sliding structure;
the following points are notable:
1. first sliding structure comprises bar spout one 7, bar slider one 8, has seted up a plurality of bar spouts one 7 on the inner wall of removal circular slot 5, and fixed mounting has a plurality of and bar spout one 7 matched with bar slider one 8 on the outer wall of filter screen 6.
2. And a strip-shaped sliding block I8 is not arranged right above the filter screen 6, so that the influence on the use of a subsequent one-way air outlet pipe 17 is avoided.
3. A plurality of sealing gaskets 9 are fixedly arranged on the outer wall of the filter screen 6; the sealing gasket 9 is arranged so that gas entering through the inlet duct 2 can only enter the right part of the cavity one 4 through the filter screen 6 (orientation shown in fig. 2).
Referring to fig. 2, a mounting plate 11 is fixedly mounted in the first cavity 4 through two vertical rods 10, and an extrusion spring 12 is fixedly mounted between the mounting plate 11 and the filter screen 6.
Referring to fig. 1, 5 and 7, a plurality of fixing rods 13 are fixedly installed on the pre-filtering tank 1, a pneumatic tank 14 is fixedly installed on the plurality of fixing rods 13 together, a one-way air inlet pipe 16 and a one-way air outlet pipe 17 are fixedly communicated with the pneumatic tank 14, the lower end of the one-way air outlet pipe 17 is communicated with the movable circular groove 5, a connecting pipe 15 is fixedly communicated with the pre-filtering tank 1, and the upper end of the connecting pipe 15 is communicated with the filter screen 6.
Referring to fig. 5, a second cavity 18 is formed in the air pressure box 14, a lifting plate 19 is installed in the second cavity 18 through a second sliding structure, and a first resetting structure is installed between the air pressure box 14 and the lifting plate 19;
the following points are notable:
1. the second sliding structure comprises two bar-shaped sliding grooves 20, two bar-shaped sliding blocks 21 and elastic blocks 22, two bar-shaped sliding grooves 20 are formed in the side walls of the two sides of the cavity 18, two bar-shaped sliding blocks 21 matched with the two bar-shaped sliding grooves are fixedly mounted on the two sides of the lifting plate 19, one elastic block 22 is fixedly mounted on the inner wall of the two bar-shaped sliding grooves 20, and the two bar-shaped sliding blocks 21 are located between the two corresponding elastic blocks 22.
2. The lifting plate 19 is installed in the second cavity 18 in a sealing and sliding mode, and meanwhile the second strip-shaped sliding block 21 is installed in the second strip-shaped sliding groove 20 in a sliding and sealing mode, so that gas entering the air pressure box 14 through the one-way air inlet pipe 16 cannot enter the upper portion of the lifting plate 19.
3. In the initial state, the lifting plate 19 is at the lowest position, and at this time, the one-way air inlet pipe 16 and the one-way air outlet pipe 17 are both located at the lower position of the lifting plate 19.
4. The first resetting structure is composed of a first magnetic plate 23, a mounting groove 24 and a second magnetic plate 25, the first magnetic plate 23 is fixedly mounted on the top wall of the air pressure box 14, the mounting groove 24 is formed in the upper surface of the lifting plate 19, the second magnetic plate 25 is fixedly mounted in the mounting groove 24, and the magnetism of one side, close to the first magnetic plate 23, of the second magnetic plate 25 is the same.
5. When the lifting plate 19 is at the maximum position, the repulsive force of the first magnetic plate 23 to the second magnetic plate 25 is smaller than the elastic force of the extrusion spring 12 to the filter screen 6.
Referring to fig. 3 and 4, an accommodating cavity 26 is formed in the prefilter box 1, the accommodating cavity 26 is communicated with the movable circular groove 5, a sealing plate 29 matched with the one-way air outlet pipe 17 is installed in the accommodating cavity 26 through a third sliding structure, and a second resetting structure is also installed between the accommodating cavity 26 and the sealing plate 29;
the following points are notable:
1. the sealing plate 29 in the initial state acts as a barrier seal against the one-way outlet pipe 17 so that gas entering the gas chamber 14 cannot flow out through the one-way outlet pipe 17.
2. The third sliding structure is composed of a third strip-shaped sliding groove 27 and a third strip-shaped sliding block 28, the third strip-shaped sliding groove 27 is formed in the bottom wall of the accommodating cavity 26, and the third strip-shaped sliding block 28 matched with the third strip-shaped sliding groove 27 is fixedly mounted on the lower surface of the sealing plate 29.
3. The strip-shaped sliding groove three 27 and the strip-shaped sliding block three 28 are matched to enable the sealing plate 29 to slide relative to the accommodating cavity 26 to a certain extent, but not to completely slide out of the accommodating cavity 26.
4. The second reset structure comprises a first magnetic block 30 and a second magnetic block 31, two second magnetic blocks 31 are fixedly mounted on the inner wall of the accommodating cavity 26, two first magnetic blocks 30 matched with the second magnetic blocks 31 are fixedly mounted at one end, away from the filter screen 6, of the sealing plate 29, and the magnetism of one end, close to one end, of each first magnetic block 30 is the same as that of the corresponding second magnetic block 31.
5. Through the cooperation of the first magnetic block 30 and the second magnetic block 31, when the filter screen 6 is restored to the initial position, the sealing plate 29 can be automatically restored to the initial position (the position shown in fig. 3).
6. The receiving cavity 26 has a limiting function on the sealing plate 29, so that the sealing plate can only slide along the horizontal direction (parallel to the direction of the receiving cavity 26).
Referring to fig. 2 and 6, a scraping rod 33 is rotatably mounted on one side of the filter screen 6 away from the extrusion spring 12 through a rotating shaft 32;
the following points are notable:
1. the scraping rod 33 is arranged to clean the surface of the filter screen 6 when it is rotated again, so as to avoid a blockage.
2. The minimum distance between the rotating shaft 32 and the end, close to the air inlet pipe 2, of the air inlet pipe 2 is greater than the shortest straight-line distance between the moving circular groove 5 and the air inlet pipe 2, so that when the filter screen 6 is located at the leftmost end, the rotating shaft 32 is still located in the moving circular groove 5, and normal use of the scraping rod 33 is guaranteed.
3. The scraping rod 33 is provided with two scraping grooves 34; the provision of the scraping grooves 34 is such that the air flow during the downward impingement will have an impact crushing effect on the impurities collected in the scraping grooves 34.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
In the invention, when gas enters the pre-filtering box 1 through the air inlet pipe 2, the gas flows out of the pre-filtering box 1 through the filter screen 6 and the air outlet pipe 3, when the filter screen 6 is blocked, the gas injected in the air inlet pipe 2 can increase the air pressure of the left part of the filter screen 6, then the gas can enter the air pressure box 14 through the connecting pipe 15 and the one-way air inlet pipe 16, the lifting plate 19 can move upwards along with the increase of the air pressure, the lifting plate 19 moves upwards to increase the air pressure of the lower part of the air pressure box 14, when the lifting plate 19 moves to the highest position, the air pressure of the left part of the filter screen 6 continues to increase, when the air pressure is greater than the elasticity of the extrusion spring 12 to the filter screen 6, the filter screen 6 can move to the right, when the filter screen 6 moves to be in contact with the sealing plate 29, the sealing plate 29 can be driven to move together, when the filter screen 6 moves to the right part of the one-way air outlet pipe 17, the gas of the lower part of the air pressure box 14 can wash the filter screen 6 and the scraping rod 33 at a higher speed, and the scraping rod 33 rotates under the action of the air flow, thereby clearing the filter screen 6, and clearing operation can also play a role in collecting dust of the large particle.
Claims (8)
1. An air pre-filtering device for a ship gas turbine comprises a pre-filtering box (1), wherein a cavity I (4) is formed in the pre-filtering box (1), and an air inlet pipe (2) and an air outlet pipe (3) are fixedly communicated with the pre-filtering box (1), and is characterized in that a moving circular groove (5) is formed in the inner wall of the cavity I (4), a filtering net (6) is installed on the moving circular groove (5) through a first sliding structure, and a plurality of sealing gaskets (9) are fixedly installed on the outer wall of the filtering net (6);
an installation disc (11) is fixedly installed in the cavity I (4) through two vertical rods (10), and an extrusion spring (12) is fixedly installed between the installation disc (11) and the filter screen (6);
the pre-filtering box (1) is fixedly provided with a plurality of fixing rods (13), the fixing rods (13) are jointly and fixedly provided with an air pressure box (14), the air pressure box (14) is fixedly communicated with a one-way air inlet pipe (16) and a one-way air outlet pipe (17), the lower end of the one-way air outlet pipe (17) is communicated with the moving circular groove (5), the pre-filtering box (1) is fixedly communicated with a connecting pipe (15), and the upper end of the connecting pipe (15) is communicated with the filtering screen (6);
a second cavity (18) is formed in the air pressure box (14), a lifting plate (19) is installed in the second cavity (18) through a second sliding structure, and a first resetting structure is installed between the air pressure box (14) and the lifting plate (19);
an accommodating cavity (26) is formed in the prefilter box (1), the accommodating cavity (26) is communicated with the movable circular groove (5), a sealing plate (29) matched with the one-way air outlet pipe (17) is installed in the accommodating cavity (26) through a third sliding structure, and a second resetting structure is further installed between the accommodating cavity (26) and the sealing plate (29);
and a scraping rod (33) is rotatably arranged on one side of the filter screen (6) far away from the extrusion spring (12) through a rotating shaft (32).
2. The air prefilter device for a marine gas turbine as claimed in claim 1, wherein said first sliding structure is composed of a first bar-shaped sliding groove (7) and a first bar-shaped sliding block (8), said inner wall of said moving circular groove (5) is provided with a plurality of first bar-shaped sliding grooves (7), and said outer wall of said filter screen (6) is fixedly provided with a plurality of first bar-shaped sliding blocks (8) which are matched with said first bar-shaped sliding grooves (7).
3. The air pre-filtering device for the ship gas turbine as claimed in claim 1, wherein the second sliding structure is composed of a second bar-shaped sliding groove (20), a second bar-shaped sliding block (21) and an elastic block (22), the two side walls of the second cavity (18) are respectively provided with the second bar-shaped sliding groove (20), the two sides of the lifting plate (19) are respectively and fixedly provided with the second bar-shaped sliding block (21) matched with the second bar-shaped sliding groove (20), the inner wall of the second bar-shaped sliding groove (20) is respectively and fixedly provided with the elastic block (22), and the second bar-shaped sliding block (21) is positioned between the two corresponding elastic blocks (22).
4. The air pre-filtering device for the ship gas turbine as claimed in claim 1, wherein the first resetting structure is composed of a first magnetic plate (23), a mounting groove (24) and a second magnetic plate (25), the first magnetic plate (23) is fixedly mounted on the top wall of the air pressure tank (14), the mounting groove (24) is formed in the upper surface of the lifting plate (19), the second magnetic plate (25) is fixedly mounted in the mounting groove (24), and the magnetism of one side, which is close to the first magnetic plate (23) and the second magnetic plate (25), is the same.
5. The air pre-filtering device for the ship gas turbine as claimed in claim 1, wherein the third sliding structure comprises a third strip-shaped sliding groove (27) and a third strip-shaped sliding block (28), the bottom wall of the accommodating cavity (26) is provided with the third strip-shaped sliding groove (27), and the lower surface of the sealing plate (29) is provided with the third strip-shaped sliding block (28) fixedly mounted and matched with the third strip-shaped sliding groove (27).
6. The air pre-filtering device for the marine gas turbine as claimed in claim 1, wherein the second resetting structure comprises a first magnetic block (30) and a second magnetic block (31), two second magnetic blocks (31) are fixedly mounted on the inner wall of the accommodating cavity (26), two first magnetic blocks (30) matched with the second magnetic blocks (31) are fixedly mounted at one end, away from the filter screen (6), of the sealing plate (29), and the magnetism of the first magnetic blocks (30) and the magnetism of the corresponding second magnetic blocks (31) close to one end are the same.
7. The air prefilter unit for a marine gas turbine according to claim 1, wherein said wiping rod (33) is provided with two wiping grooves (34).
8. The air prefilter unit for a gas turbine of a marine vessel, according to claim 1, wherein the smallest distance between said rotary shaft (32) and the end of said inlet pipe (2) close to it is greater than the shortest straight distance between said moving circular slot (5) and said inlet pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371112.4A CN113877316B (en) | 2021-11-18 | 2021-11-18 | Air pre-filtering device for ship gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371112.4A CN113877316B (en) | 2021-11-18 | 2021-11-18 | Air pre-filtering device for ship gas turbine |
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| Publication Number | Publication Date |
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| CN113877316A CN113877316A (en) | 2022-01-04 |
| CN113877316B true CN113877316B (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111371112.4A Active CN113877316B (en) | 2021-11-18 | 2021-11-18 | Air pre-filtering device for ship gas turbine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115040944B (en) * | 2022-08-08 | 2022-12-23 | 烟台枫林新材料有限公司 | Gas collecting and purifying equipment for polyester resin production |
| CN116510427B (en) * | 2023-05-24 | 2023-12-01 | 扬州通瑞保重工有限公司 | Smoking device for metal welding |
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| JPS6044019A (en) * | 1983-08-09 | 1985-03-08 | パ−マテイツク、フイルタ−、コ−ポレイシヨン | Method and apparatus for separating particles carried by steam-containing air |
| CN209475929U (en) * | 2019-01-17 | 2019-10-11 | 李史军 | A kind of energy-saving Heating,Ventilating and Air Conditioning filter |
| CN110538541A (en) * | 2019-09-30 | 2019-12-06 | 邓晓凝 | Electric automatization intelligence dust pelletizing system |
| CN112727526A (en) * | 2020-12-30 | 2021-04-30 | 王晓勇 | Mine air return inlet supercharging equipment and use method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7520925B2 (en) * | 2005-12-21 | 2009-04-21 | Sure Seal, Inc. | Filter and silencer with a quick disconnect lid |
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2021
- 2021-11-18 CN CN202111371112.4A patent/CN113877316B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044019A (en) * | 1983-08-09 | 1985-03-08 | パ−マテイツク、フイルタ−、コ−ポレイシヨン | Method and apparatus for separating particles carried by steam-containing air |
| CN209475929U (en) * | 2019-01-17 | 2019-10-11 | 李史军 | A kind of energy-saving Heating,Ventilating and Air Conditioning filter |
| CN110538541A (en) * | 2019-09-30 | 2019-12-06 | 邓晓凝 | Electric automatization intelligence dust pelletizing system |
| CN112727526A (en) * | 2020-12-30 | 2021-04-30 | 王晓勇 | Mine air return inlet supercharging equipment and use method thereof |
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| CN113877316A (en) | 2022-01-04 |
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