CN114487306B - Hydrogen sulfide gas sensor for waste treatment - Google Patents
Hydrogen sulfide gas sensor for waste treatment Download PDFInfo
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- CN114487306B CN114487306B CN202210177017.9A CN202210177017A CN114487306B CN 114487306 B CN114487306 B CN 114487306B CN 202210177017 A CN202210177017 A CN 202210177017A CN 114487306 B CN114487306 B CN 114487306B
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- telescopic
- hydrogen sulfide
- gas
- gas box
- detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0044—Specially adapted to detect a particular component for H2S, sulfides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention relates to the technical field of sensors, in particular to a hydrogen sulfide gas sensor for waste treatment, which comprises an outer fixing ring, a detection gas box, a hydrogen sulfide detection head, a driven air receiving plate, a uniform air capturing bucket and an air inlet communication pipeline, wherein the detection gas box is rotatably arranged in the outer fixing ring, and the hydrogen sulfide detection head is fixedly arranged on the inner surface position of the outer fixing ring; the sensor is suitable for uniformly detecting hydrogen sulfide gas in a pipeline, and because the outer fixing ring and the detection gas box can relatively rotate, when the gas passes through the pipeline, the driven air receiving plate can be driven by the gas to rotate, and when the driven air receiving plate rotates, the uniform gas capturing hopper can capture the gas around the pipeline and send the gas into the detection gas box through the gas inlet communicating pipeline for detection, so that result deviation caused by too small detection point positions is avoided.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a hydrogen sulfide gas sensor for waste treatment.
Background
The hydrogen sulfide gas sensor is designed to monitor the concentration of hydrogen sulfide gas in ambient air, so the hydrogen sulfide gas sensor is often used for detecting the hydrogen sulfide gas in waste treatment, the waste gas generated in waste treatment is often conveyed by a pipeline, the molecular weight of the hydrogen sulfide gas is heavier than that of air and only slightly heavier than that of air, so that the hydrogen sulfide gas in the waste gas is unevenly distributed in the pipeline, when the common hydrogen sulfide sensor is adopted for detection, the common hydrogen sulfide sensor can only be arranged at a point position in the pipeline, the sampling range is smaller during detection, the detection result error is larger, and the interference on the common hydrogen sulfide gas sensor is extremely large when the gas flow velocity in the pipeline changes, so that the detection effect is further influenced.
Disclosure of Invention
The present invention is directed to a hydrogen sulfide gas sensor for disposal to solve the above-mentioned problems of the related art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a hydrogen sulfide gas sensor for abandonment processing, includes outside retainer plate, detects gaseous box, hydrogen sulfide detecting head, from the air-receiving plate, evenly catches the air bucket and admit air the communication pipeline, detect gaseous box rotation and install the inside at outside retainer plate, hydrogen sulfide detecting head fixed mounting is in the inboard surface position of outside retainer plate, and hydrogen sulfide detecting head is located the inside of detecting gaseous box, from the air-receiving plate fixed mounting in the surface position of detecting gaseous box, evenly catch the air bucket fixed mounting and keep away from the one end of detecting gaseous box at the rear surface position of from the air-receiving plate, evenly catch the air bucket and communicate with detecting gaseous box through admitting air the communication pipeline, evenly catch the surface position of air bucket and be provided with the centrifugal baffle mechanism that has the self-closing function, the surface position of outside retainer plate is provided with pipe wall support piece.
Preferably, the outside retainer plate is annular round, detect gaseous box and be cylindrical short tubular, and its one end seals, and the other end opening, hydrogen sulfide detecting head stretches into its inside from the open end that detects gaseous box, driven air-receiving plate is certain angle slope setting, the quantity of driven air-receiving plate has a plurality of altogether, and is circumference array evenly distributed in the surface position that detects gaseous box, even catch the air bucket and be the opening form, and its opening is perpendicular with the inclination of driven air-receiving plate, even catch the opening of air bucket towards the place ahead of driven air-receiving plate.
Preferably, the centrifugal baffle mechanism comprises a closed slot which is formed in a position where the outer surface of the uniform gas capturing bucket is close to one side where the gas box is located, a telescopic closed plate is movably inserted in the closed slot, a limiting fixed block is fixedly mounted on the outer surface of the telescopic closed plate, and a polish rod through hole is formed in the surface of the limiting fixed block.
Preferably, the telescopic sealing plate is adaptive to the internal cross-section shape of the uniform gas capturing bucket, a limiting fixed polish rod is inserted in the polish rod through hole, one end of the limiting fixed polish rod is fixedly arranged at the outer surface position of the uniform gas capturing bucket, a grid blocking end block is fixedly arranged at the other end of the limiting fixed polish rod, and a supporting adjusting spring is sleeved and arranged between the limiting fixed block and the outer surface of the uniform gas capturing bucket outside the limiting fixed polish rod.
Preferably, the pipe wall support piece comprises a telescopic accommodating cylinder fixedly arranged at the outer surface of the outer fixing ring, an inner telescopic cavity is fixedly arranged in the telescopic accommodating cylinder, and a telescopic inner rod is movably inserted in the inner telescopic cavity.
Preferably, an inner rod pressing plate is fixedly arranged in the inner telescopic cavity, and a supporting spring is arranged in the inner telescopic cavity and located at one side surface of the inner rod pressing plate.
Preferably, the one end surface position fixed mounting that stretches out and draws back and hold a section of thick bamboo has the anticreep end plate, the interior pole passes the hole has been seted up to the surface of anticreep end plate, the other end of flexible interior pole alternates through interior pole and passes the hole, and stretches out the outside of inside flexible chamber, the other end surface position fixed mounting of flexible interior pole has the arc pipe wall to prop, the arc pipe wall props and is the arc platy, and has certain elasticity, the surface position fixed mounting of arc pipe wall props has the rubber antislip strip.
Preferably, the outer surface position of detecting gas box is fixed mounting has the bearing flange, the one side position cover that the surface of detecting gas box is located the bearing flange is established and is installed deep groove ball bearing, the inner side surface position of outer lane fixed mounting at outside retainer plate of deep groove ball bearing, the detecting gas box passes through deep groove ball bearing and rotates the installation with outside retainer plate, the surface position fixed mounting of hydrogen sulfide detecting head has the probe support frame, probe support frame fixed mounting is in the inner side surface position of outside retainer plate, the rear surface position fixed mounting of driven air-receiving plate has the pipeline locking piece, the air inlet communicating pipeline alternates through the pipeline locking piece.
Compared with the prior art, the invention has the beneficial effects that:
the sensor is suitable for uniformly detecting hydrogen sulfide gas in a pipeline, and because the outer fixing ring and the detection gas box can relatively rotate, when the gas passes through the pipeline, the driven air receiving plate can be driven by the gas to rotate, and when the driven air receiving plate rotates, the uniform air capturing hopper can capture the gas around the pipeline and send the gas into the detection gas box for detection through the air inlet communication pipeline, so that the sensor can uniformly detect the gas passing through the pipeline and avoid result deviation caused by over-small detection points;
the sensor provided by the invention can adapt to the change of the flow velocity of gas in a pipeline, the interference of the change of the flow velocity of the gas on the hydrogen sulfide detection head is reduced, when the flow rate and the flow velocity of the gas in the pipeline are increased, the rotation speed of the driven air receiving plate is increased under the influence of the air flow, so that the centrifugal force generated when the driven air receiving plate rotates is increased, the telescopic sealing plate is downwards displaced under the action of the centrifugal force and is inserted into the sealing slot, at the moment, the supporting adjusting spring is compressed, the part of the telescopic sealing plate inserted into the sealing slot is increased, the opening size of the uniform gas capturing hopper is reduced, the air capturing quantity of the uniform gas capturing hopper is reduced, and vice versa, so that the air flow fed into the detection gas box can be kept stable, and the influence on the hydrogen sulfide detection head is reduced;
the sensor can be conveniently arranged in the pipeline through the arranged pipe wall supporting piece, and the telescopic movement of the telescopic accommodating cylinder and the telescopic inner rod can be suitable for pipelines with different diameters, so that the sensor is convenient to install and use.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of the overall structure of the present invention;
FIG. 4 is an enlarged view of FIG. 3 at B;
FIG. 5 is a cross-sectional view of the present invention;
fig. 6 is a rear view of the present invention.
In the figure: 1. an outer fixing ring; 2. detecting a gas box; 3. a hydrogen sulfide detector head; 4. driven air receiving plate; 5. a uniform air catching hopper; 6. an intake communication pipe; 501. closing the slot; 502. a retractable closing plate; 503. limiting fixed blocks; 504. a polish rod through hole; 505. limiting and fixing a polish rod; 506. a grid end block; 507. supporting an adjusting spring; 101. a telescopic accommodating cylinder; 102. an internal telescoping chamber; 103. a telescopic inner rod; 104. an inner rod pressure plate; 105. a support spring; 106. an anti-drop end plate; 107. the inner rod passes through the hole; 108. arc pipe wall support; 109. rubber anti-slip strips; 201. bearing flanges; 202. deep groove ball bearings; 301. a probe support; 401. a pipe locking block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a hydrogen sulfide gas sensor for abandonment processing, including outside retainer plate 1, detect gas box 2, hydrogen sulfide detecting head 3, driven windward plate 4, even air catcher 5 and inlet communication pipeline 6, detect gas box 2 rotation and install the inside at outside retainer plate 1, hydrogen sulfide detecting head 3 fixed mounting is in the inboard surface position of outside retainer plate 1, hydrogen sulfide detecting head 3 can detect the hydrogen sulfide in the gas, be prior art, and hydrogen sulfide detecting head 3 is located the inside of detecting gas box 2, driven windward plate 4 fixed mounting is in the surface position of detecting gas box 2, even air catcher 5 fixed mounting is kept away from the one end of detecting gas box 2 at the rear surface position of driven windward plate 4, even air catcher 5 communicates with detecting gas box 2 through inlet communication pipeline 6, the surface position of even air catcher 5 is provided with the centrifugal baffle mechanism that has the self-sealing function, the surface position of outside retainer plate 1 is provided with the pipe wall support.
The outside retainer plate 1 is annular round, detect gas box 2 and be cylindrical short tubular, and its one end is sealed, the other end opening, hydrogen sulfide detecting head 3 stretches into its inside from the open end that detects gas box 2, driven air-receiving plate 4 is the slope of certain angle setting, the quantity of driven air-receiving plate 4 has a plurality of altogether, and be circumference array evenly distributed in the surface position that detects gas box 2, even air-catching bucket 5 is the opening bucket form, and its opening is perpendicular with the inclination of driven air-receiving plate 4, the opening of even air-catching bucket 5 is towards driven air-receiving plate 4's place ahead, as shown in fig. 3, when making driven air-receiving plate 4 rotatory, even air-catching bucket 5 head-on operation makes the pressure in even air-catching bucket 5 be greater than the gas pressure in the detection gas box 2, thereby even air-catching bucket 5 can catch the air current, and send into in the detection gas box 2 through inlet communication pipeline 6.
The centrifugal baffle plate mechanism comprises a closed slot 501 which is formed in the position of the outer surface of the uniform gas capturing bucket 5, which is close to the side where the detection gas box 2 is located, a telescopic closed plate 502 is movably inserted in the closed slot 501, a limiting fixed block 503 is fixedly arranged on the outer surface of the telescopic closed plate 502, and a polish rod through hole 504 is formed in the surface of the limiting fixed block 503; the telescopic sealing plate 502 is adaptive to the internal cross section shape of the uniform gas capturing bucket 5, so that the uniform gas capturing bucket 5 can be blocked and sealed when the telescopic sealing plate 502 is inserted, a limiting fixed polish rod 505 is inserted in the polish rod through hole 504, one end of the limiting fixed polish rod 505 is fixedly arranged at the outer surface position of the uniform gas capturing bucket 5, a grid baffle end block 506 is fixedly arranged at the other end of the limiting fixed polish rod 505, a supporting adjusting spring 507 is sleeved between the limiting fixed block 503 and the outer surface of the uniform gas capturing bucket 5 outside the limiting fixed polish rod 505, and the elasticity of the supporting adjusting spring 507 is adjusted according to actual needs, so that the phenomenon that the telescopic sealing plate 502 cannot be thrown outwards by centrifugal force is avoided.
The pipe wall support piece comprises a telescopic accommodating cylinder 101 fixedly arranged at the outer surface position of the outer fixing ring 1, an inner telescopic cavity 102 is fixedly arranged in the telescopic accommodating cylinder 101, and a telescopic inner rod 103 is movably inserted in the inner telescopic cavity 102; an inner rod pressing plate 104 is fixedly arranged in the inner telescopic cavity 102 at the position of one end surface of the telescopic inner rod 103, and a supporting spring 105 is arranged in the inner telescopic cavity 102 at the position of one side surface of the inner rod pressing plate 104; the telescopic holding cylinder 101 has an anti-drop end plate 106 in one end surface position fixed mounting, the inner rod passes hole 107 has been seted up on the surface of anti-drop end plate 106, the other end of telescopic inner rod 103 alternates through inner rod passes hole 107, and stretch out the outside of inside flexible chamber 102, the other end surface position fixed mounting of telescopic inner rod 103 has arc pipe wall to prop 108, arc pipe wall props 108 are arc platy, and have certain elasticity, arc pipe wall props 108 can be crooked with pipeline inner wall radian adaptation when installing into the pipeline, the surface position fixed mounting of arc pipe wall props 108 has rubber antislip strip 109, rubber antislip strip 109 can adopt rubber to make, have anti-skidding effect, improve the fixed stability of sensor.
The outer surface position of the detection gas box 2 is fixedly provided with a bearing flange 201, one side position of the outer surface of the detection gas box 2, which is positioned on the bearing flange 201, is sleeved with a deep groove ball bearing 202, the outer ring surface of the deep groove ball bearing 202 is fixedly arranged at the inner side surface position of the outer side fixing ring 1, the detection gas box 2 is rotatably arranged with the outer side fixing ring 1 through the deep groove ball bearing 202, the outer surface position of the hydrogen sulfide detection head 3 is fixedly provided with a probe supporting frame 301, the probe supporting frame 301 is fixedly arranged at the inner side surface position of the outer side fixing ring 1, the rear surface position of the driven wind receiving plate 4 is fixedly provided with a pipeline locking block 401, and the air inlet communication pipeline 6 is inserted through the pipeline locking block 401, so that the air inlet communication pipeline 6 is fixed more firmly.
When the hydrogen sulfide gas sensor for waste treatment is used, after gas in a pipeline blows through the driven air receiving plate 4, the driven air receiving plate 4 drives the detection gas box 2 to rotate in the outer fixed ring 1 under the pushing of air flow, the uniform gas capturing hopper 5 rotates against wind, gas in any direction around the pipeline is sampled and collected, the gas is sent into the detection gas box 2 through the air inlet communication pipeline 6, the hydrogen sulfide detection head 3 can accurately detect the gas, sampling unevenness during detection is avoided, the rotating speed of the driven air receiving plate 4 is in direct proportion to the flow speed of the gas in the pipeline, when the flow speed of the gas in the pipeline is increased, the rotating speed of the driven air receiving plate 4 is synchronously increased, the centrifugal force generated by the driven air receiving plate 4 is also increased, so that the telescopic sealing plate 502 is subjected to the outward centrifugal force, the telescopic sealing plate 502 is inserted into the part in the sealing slot 501, the air inlet of the uniform gas hopper 5 is closed, the part of the uniform gas capturing hopper 5 is reduced, the flow speed of the gas fed into the detection gas box 2 is kept stable, and the interference of the change of the gas in the pipeline on the flow speed of the hydrogen sulfide detection head 3 is avoided.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A hydrogen sulfide gas sensor for abandonment is handled, includes outside retainer plate, detects gaseous box, hydrogen sulfide detecting head, driven air receiving plate, even air capturing fill and inlet communication pipeline, its characterized in that: the detection gas box is rotationally arranged in the outer fixing ring, the hydrogen sulfide detection head is fixedly arranged at the inner surface position of the outer fixing ring and is positioned in the detection gas box, the driven air receiving plate is fixedly arranged at the outer surface position of the detection gas box, the uniform air catching hopper is fixedly arranged at one end of the rear surface position of the driven air receiving plate, which is far away from the detection gas box, the uniform air catching hopper is communicated with the detection gas box through an air inlet communication pipeline, the outer surface position of the uniform air catching hopper is provided with a centrifugal baffle mechanism with an automatic sealing function, the outer surface position of the outer fixing ring is provided with a pipe wall supporting piece, the outer fixing ring is in a ring shape, the detection gas box is in a cylindrical short pipe shape, one end of the detection gas box is sealed, the other end of the detection gas box is open, the hydrogen sulfide detection head extends into the detection gas box from the open end of the detection gas box, the driven air receiving plates are obliquely arranged at a certain angle, the number of the driven air receiving plates is a plurality of, and the driven air receiving plates are uniformly distributed on the outer surface of the detection gas box in a circumferential array mode, the uniform air capturing hoppers are in an opening hopper shape, the openings of the uniform air capturing hoppers are perpendicular to the inclination angle of the driven air receiving plates, the openings of the uniform air capturing hoppers face towards the front of the driven air receiving plates, the centrifugal baffle mechanism comprises a closed slot which is formed in the outer surface of the uniform air capturing hoppers and is close to the position of one side where the detection gas box is located, telescopic sealing plates are movably inserted in the closed slot, limiting fixing blocks are fixedly arranged on the outer surface of the telescopic sealing plates, polish rod through holes are formed in the surfaces of the limiting fixing blocks, the telescopic sealing plates are matched with the inner section shape of the uniform air capturing hoppers, and limiting fixing polish rods are inserted in the polish rod through holes, one end of the limiting fixed polish rod is fixedly arranged at the outer surface of the uniform gas capturing bucket, the grid end block is fixedly arranged at the other end of the limiting fixed polish rod, and a supporting and adjusting spring is sleeved between the limiting fixed block and the outer surface of the uniform gas capturing bucket outside the limiting fixed polish rod.
2. A hydrogen sulfide gas sensor for use in waste processing as claimed in claim 1, wherein: the pipe wall support piece comprises a telescopic accommodating cylinder fixedly arranged at the outer surface of the outer fixing ring, an inner telescopic cavity is fixedly arranged in the telescopic accommodating cylinder, and a telescopic inner rod is movably inserted in the inner telescopic cavity.
3. A hydrogen sulfide gas sensor for use in waste processing as claimed in claim 2, wherein: the telescopic inner rod is characterized in that an inner rod pressing plate is fixedly mounted in the telescopic inner cavity, and a supporting spring is arranged in the telescopic inner cavity and located at one side surface of the inner rod pressing plate.
4. A hydrogen sulfide gas sensor for use in waste processing as claimed in claim 3, wherein: the telescopic tube comprises a telescopic accommodating tube, wherein an anti-falling end plate is fixedly arranged at one end surface position of the telescopic accommodating tube, an inner rod penetrating hole is formed in the surface of the anti-falling end plate, the other end of the telescopic inner rod penetrates through the inner rod penetrating hole and stretches out of an inner telescopic cavity, an arc tube wall support is fixedly arranged at the other end surface position of the telescopic inner rod, the arc tube wall support is arc-shaped and has certain elasticity, and a rubber anti-slip strip is fixedly arranged at the outer surface position of the arc tube wall support.
5. A hydrogen sulfide gas sensor for use in waste processing as claimed in claim 1, wherein: the utility model discloses a detection gas box, including the outer surface position fixed mounting of detection gas box, the surface position fixed mounting of detection gas box has the bearing flange, the one side position cover that the surface of detection gas box is located the bearing flange is established and is installed deep groove ball bearing, the inner side surface position of outer lane fixed mounting at outside retainer plate of deep groove ball bearing, the detection gas box passes through deep groove ball bearing and rotates the installation with outside retainer plate, the surface position fixed mounting of hydrogen sulfide detecting head has the probe support frame, probe support frame fixed mounting is in the inner side surface position of outside retainer plate, the rear surface position fixed mounting of driven windward board has the pipeline locking piece, the air inlet communicating pipe alternates through the pipeline locking piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210177017.9A CN114487306B (en) | 2022-02-25 | 2022-02-25 | Hydrogen sulfide gas sensor for waste treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210177017.9A CN114487306B (en) | 2022-02-25 | 2022-02-25 | Hydrogen sulfide gas sensor for waste treatment |
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| Publication Number | Publication Date |
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| CN114487306A CN114487306A (en) | 2022-05-13 |
| CN114487306B true CN114487306B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210177017.9A Active CN114487306B (en) | 2022-02-25 | 2022-02-25 | Hydrogen sulfide gas sensor for waste treatment |
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| US3860167A (en) * | 1972-01-19 | 1975-01-14 | Commissariat Energie Atomique | Device for sampling gas within the rotating bowl of a centrifuge |
| JP2006130034A (en) * | 2004-11-05 | 2006-05-25 | Matsushita Electric Ind Co Ltd | Centrifugal dust collector and vacuum cleaner using the same |
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| JP2015151990A (en) * | 2014-02-19 | 2015-08-24 | 三菱重工業株式会社 | Centrifugal compressor, turbo refrigerator, supercharger, and centrifugal compressor control method |
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| CN213302152U (en) * | 2020-10-29 | 2021-05-28 | 中国烟草总公司郑州烟草研究院 | Cigarette smoke particle phase and gas phase part mouth-by-mouth trapping device |
| CN113710345A (en) * | 2019-08-07 | 2021-11-26 | 松下知识产权经营株式会社 | Trapping device |
| CN215449170U (en) * | 2021-05-20 | 2022-01-07 | 茂拓环境技术(上海)有限公司 | Hydrogen sulfide gas detector |
-
2022
- 2022-02-25 CN CN202210177017.9A patent/CN114487306B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3251539A (en) * | 1963-05-15 | 1966-05-17 | Westinghouse Electric Corp | Centrifugal gas compressors |
| US3860167A (en) * | 1972-01-19 | 1975-01-14 | Commissariat Energie Atomique | Device for sampling gas within the rotating bowl of a centrifuge |
| JP2006130034A (en) * | 2004-11-05 | 2006-05-25 | Matsushita Electric Ind Co Ltd | Centrifugal dust collector and vacuum cleaner using the same |
| JP2011101835A (en) * | 2009-11-10 | 2011-05-26 | Ihi Corp | Stirring blade and bioreactor |
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| CN114487306A (en) | 2022-05-13 |
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