CN210533809U

CN210533809U - Sampling device for pollution source flue gas pump

Info

Publication number: CN210533809U
Application number: CN201920437385.6U
Authority: CN
Inventors: 刘纪平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-05-15
Anticipated expiration: 2029-04-02

Abstract

The utility model discloses a pollution sources flue gas pump sampling device, including ice bath case, filter membrane, sampling tube and dust removal casing, the inside of dust removal casing is equipped with the clean room, and the dust removal casing of clean room below is inside to be equipped with first dust collecting chamber, second dust collecting chamber respectively, pipe inside between first dust collecting chamber and the second dust collecting chamber is fixed with the second dirt filter screen. The utility model discloses an all install "L" type pipe in the both sides that the dehumidification pipe is close to micro-motor one end, "the internally mounted filter membrane of L" type pipe, the desiccant adsorbent is filled on the upper portion of filter membrane, the inboard pivot outside welding helical blade of dehumidification pipe, and the dehumidification intraductal wall sets up the drier layer, at first the pivot is rotated and is driven the helical blade rotation and be the flue gas and produce a centrifugal force round the helical blade motion, make the aqueous vapor separation in the flue gas, absorbed by the drier layer, in addition the internally mounted filter membrane of "L" type pipe, can carry out absorption once more to untreated moisture, thereby get rid of various interference factors, guarantee to measure the accuracy.

Description

Sampling device for pollution source flue gas pump

Technical Field

The utility model relates to a sampling device technical field specifically is a pollution source flue gas pump sampling device.

Background

The mercury emission amount of a coal-fired power plant in China accounts for 33.6% of the total amount of mercury emission of atmosphere, the mercury emission amount of the coal-fired power plant is the first of all in all industries, the mercury emission amount of the coal-fired power plant is the fourth main pollutant behind dust, SO2 and NOX, and in order to effectively control the emission of mercury in coal-fired flue gas, the emission indexes of mercury and compounds in flue gas of the coal-fired power plant are firstly and clearly specified in the atmospheric pollution emission standard of the coal-fired power plant (GB 13223-2011. From 1/2015, mercury and its compounds are required to implement pollutant emission limits of 0.03mg/m3 for existing and newly built coal-fired power generation boilers.

Along with the high-speed increase of the power demand in China, the total coal-fired quantity of a thermal power plant keeps a high-speed increasing trend, the mercury content in flue gas discharged by coal-fired occupies most of artificial mercury discharge, and how to accurately and effectively collect and analyze the mercury content in the flue gas becomes an important method for evaluating the mercury control capacity of the existing pollutant control equipment of the coal-fired power plant. Mercury in flue gas exists in different physical and chemical forms; the concentration is very low and is microgram grade, the sampling and analysis process needs to be accurately controlled, various interference factors are eliminated, and the measurement accuracy is ensured.

Disclosure of Invention

An object of the utility model is to provide a pollution sources flue gas pump sampling device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pollution source flue gas pump sampling device comprises an ice bath box, a filter membrane, a sampling tube and a dust removal shell, wherein a dust removal chamber is arranged in the dust removal shell, a first dust collection chamber and a second dust collection chamber are respectively arranged in the dust removal shell below the dust removal chamber, a second dust filter screen is fixed in a guide tube between the first dust collection chamber and the second dust collection chamber, a first dust filter screen is installed in the dust removal chamber on one side of the second dust collection chamber, the sampling tube is installed at the middle position of the side wall of the dust removal shell on one side of the guide tube, a dehumidifying tube is installed at the middle position of the side wall of the dust removal shell on the other side of the guide tube, a micro motor is installed at one end, away from the dust removal shell, of the dehumidifying tube, the output end of the micro motor extends to the inside of the dehumidifying tube and is fixedly connected with a rotating shaft, one end, away from the micro motor, of the rotating shaft extends to the, the inside of ice bath case is equipped with the absorption bottle, the both sides that the dehumidification pipe is close to micro motor one end all install "L" type pipe, "the internally mounted of L" type pipe has the filter membrane, "the one end that the dehumidification pipe was kept away from to the L" type pipe extends to the inside fixedly connected with pipe of ice bath case.

Preferably, the outer sides of the rotating shafts on one sides of the second dust filter screen and the first dust filter screen are both provided with scrapers.

Preferably, fan blades are welded on the outer side of the rotating shaft, close to one side of the dehumidification pipe, of the first dust filtration net.

Preferably, the upper part of the filter membrane is filled with a desiccant adsorbent.

Preferably, helical blades are welded on the outer side of the rotating shaft on the inner side of the dehumidification pipe, and a drying agent layer is arranged on the inner side wall of the dehumidification pipe.

Preferably, the first dust collecting chamber and the second dust collecting chamber are communicated with the dust removing chamber.

Preferably, a cover body is mounted on the side wall of the dust removing shell on one side of the first dust collecting chamber and the second dust collecting chamber.

Preferably, the end of the conduit remote from the "L" shaped tube extends into the interior of the absorption bottle.

Compared with the prior art, the beneficial effects of the utility model are that: the pollution source flue gas pump sampling device is characterized in that a dust removing chamber is arranged in a dust removing shell, a first dust collecting chamber and a second dust collecting chamber are respectively arranged in the dust removing shell below the dust removing chamber, a second dust filter screen is fixed in a guide pipe between the first dust collecting chamber and the second dust collecting chamber, a first dust filter screen is arranged in the dust removing chamber on one side of the second dust collecting chamber, dust in flue gas can be conveniently filtered, the measurement accuracy is improved, a dehumidifying pipe is arranged in the middle of the side wall of the dust removing shell on the other side of the guide pipe, a micro motor is arranged at one end, far away from the dust removing shell, of the dehumidifying pipe, the output end of the micro motor extends to a rotating shaft fixedly connected with the inside of the dehumidifying pipe, one end, far away from the micro motor, of the rotating shaft extends to the dust removing chamber and penetrates through the first dust filter screen and the second dust filter screen, scrapers are arranged outside the rotating shaft on one side of the second dust filter screen and the first dust, the dust on the first dust filter screen and the second dust filter screen is scraped off, so that the dust on the first dust filter screen and the second dust filter screen is prevented from being pushed, the entering flow of the smoke is influenced, the measurement accuracy is influenced, meanwhile, the fan blades rotate to drive and promote the smoke to enter, the utility model arranges L-shaped pipes at both sides of one end of the dehumidification pipe close to the micro motor, arranges a filter membrane in the L-shaped pipe, fills the desiccant adsorbent at the upper part of the filter membrane, welds helical blades at the outer side of the rotating shaft at the inner side of the dehumidification pipe, the inner side wall of the dehumidification pipe is provided with a drying agent layer, firstly, the rotation of the rotating shaft drives the helical blade to rotate, so that the flue gas moves around the helical blade to generate a centrifugal force, the water and the air in the flue gas are separated and absorbed by the drying agent layer, in addition, a filter membrane is arranged in the L-shaped pipe, so that untreated water can be absorbed again, various interference factors are eliminated, and the accuracy of measuring the mercury content in the flue gas is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a refrigerator bath; 2. filtering the membrane; 3. a dehumidification pipe; 4. a fan blade; 5. a first dust filter screen; 6. a dust removal housing; 7. a sampling tube; 8. a squeegee; 9. a cover body; 10. a first dust collecting chamber; 11. a second dust collecting chamber; 12. a second dust filter screen; 13. a dust chamber; 14. a desiccant layer; 15. a rotating shaft; 16. helical leaf; 17. an "L" shaped tube; 18. a micro motor; 19. a conduit; 20. and (4) an absorption bottle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides an embodiment: a pollution source flue gas pump sampling device comprises an ice bath box 1, a filter membrane 2, a sampling tube 7 and a dust removal shell 6, wherein a dust removal chamber 13 is arranged in the dust removal shell 6, a first dust collection chamber 10 and a second dust collection chamber 11 are respectively arranged in the dust removal shell 6 below the dust removal chamber 13, the first dust collection chamber 10 and the second dust collection chamber 11 are communicated with the dust removal chamber 13, a cover body 9 is arranged on the side wall of the dust removal shell 6 at one side of the first dust collection chamber 10 and the second dust collection chamber 11, a second dust filter screen 12 is fixed in a guide tube 19 between the first dust collection chamber 10 and the second dust collection chamber 11, a first dust filter screen 5 is arranged in the dust removal chamber 13 at one side of the second dust collection chamber 11, the sampling tube 7 is arranged at the middle position of the side wall of the dust removal shell 6 at one side of the guide tube 19, a dehumidifying tube 3 is arranged at the middle position of the side wall of the dust removal shell 6 at the other side of the, the output end of the micro motor 18 extends to the inside of the dehumidification pipe 3 and is fixedly connected with a rotating shaft 15, one end of the rotating shaft 15, far away from the micro motor 18, extends to a dust chamber 13 and penetrates through a first dust filter screen 5 and a second dust filter screen 12, a scraper 8 is arranged on the outer side of the rotating shaft 15 on one side of the second dust filter screen 12 and the first dust filter screen 5, a fan blade 4 is welded on the outer side of the rotating shaft 15 on one side of the first dust filter screen 5, close to one side of the dehumidification pipe 3, a spiral blade 16 is welded on the outer side of the rotating shaft 15 on the inner side of the dehumidification pipe 3, a drying agent layer is arranged on the inner side wall of the dehumidification pipe 3, an ice bath box 1 is arranged on one side of the dehumidification pipe 3, an absorption bottle 20 is arranged inside the ice bath box 1, L-shaped pipes 17 are arranged on two sides of one end of the dehumidification pipe 3, close to the micro motor 18, a filter membrane 2 is arranged, the end of the conduit 19 remote from the "L" shaped tube 17 extends inside the absorption bottle 20.

The working principle is as follows: when the dust removal device is used, smoke enters the dust removal shell 6 from the sampling pipe 7, dust particles in the smoke are filtered sequentially through the first dust filter 5 and the second dust filter 12, the micro motor 18 is started, the output end of the micro motor 18 rotates to drive the rotating shaft 15 to rotate, the rotating shaft 15 drives the scraper 8 on the rotating shaft 15 to rotate, dust on the first dust filter 5 and the second dust filter 12 is scraped off, the dust falls into the first dust collection chamber 10 and the second dust collection chamber 11 respectively, the rotating shaft 15 rotates to drive the fan blades 4 to rotate, circulation of the smoke is promoted, when the smoke enters the dehumidification pipe 3, the spiral blades 16 welded on the outer side of the rotating shaft 15 rotate to enable the smoke to move around the spiral blades 16 to generate a centrifugal force, water and air in the smoke are separated and then absorbed by the drying agent layer 14, in addition, the absorbent of the filter membrane 2 is installed inside the L-shaped pipe, untreated water and air in the smoke can be absorbed, and finally, the flue gas is sampled from the inside of the absorption bottle 20 through the guide pipe 19, the ice bath box 1 can be controlled at a proper temperature, the accuracy and precision of the measuring result of the mercury content in the flue gas and the validity of data are ensured, and the cover body 9 is opened after the detection is finished to pour out dust.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a pollution sources flue gas pump sampling device, includes ice bath case (1), filter membrane (2), sampling tube (7) and dust removal casing (6), its characterized in that: the dust collection device is characterized in that a dust collection chamber (13) is arranged in the dust collection housing (6), a first dust collection chamber (10) and a second dust collection chamber (11) are respectively arranged in the dust collection housing (6) below the dust collection chamber (13), a second dust filter screen (12) is fixed in a guide pipe (19) between the first dust collection chamber (10) and the second dust collection chamber (11), a first dust filter screen (5) is installed in the dust collection chamber (13) on one side of the second dust collection chamber (11), a sampling pipe (7) is installed at the middle position of the side wall of the dust collection housing (6) on one side of the guide pipe (19), a dehumidification pipe (3) is installed at the middle position of the side wall of the dust collection housing (6) on the other side of the guide pipe (19), a micro motor (18) is installed at one end, far away from the dust collection housing (6), of the dehumidification pipe (3), and a rotating shaft (15) is fixedly connected in the, and pivot (15) keep away from the one end of micro motor (18) and extend to clean room (13) and run through first dirt screen (5) and second dirt filter screen (12), one side of dehumidification pipe (3) is equipped with ice bath (1), and the inside of ice bath (1) is equipped with absorption bottle (20), the both sides that dehumidification pipe (3) are close to micro motor (18) one end all install "L" type pipe (17), "L" type pipe's internally mounted has filter membrane (2), "L" type pipe (17) keep away from the one end of dehumidification pipe (3) and extend to ice bath (1) inside fixedly connected with pipe (19).

2. A pollutant source flue gas pump sampling device in accordance with claim 1, wherein: and scraping plates (8) are arranged on the outer sides of the rotating shafts (15) on one sides of the second dust filtering net (12) and the first dust filtering net (5).

3. A pollutant source flue gas pump sampling device in accordance with claim 1, wherein: the fan blades (4) are welded on the outer side of the rotating shaft (15) on one side, close to the dehumidification pipe (3), of the first dust filtration net (5).

4. A pollutant source flue gas pump sampling device in accordance with claim 1, wherein: the upper part of the filter membrane (2) is filled with a desiccant adsorbent.

5. A pollutant source flue gas pump sampling device in accordance with claim 1, wherein: helical blades (16) are welded on the outer side of a rotating shaft (15) on the inner side of the dehumidification pipe (3), and a drying agent layer is arranged on the inner side wall of the dehumidification pipe (3).

6. A pollutant source flue gas pump sampling device in accordance with claim 1, wherein: the first dust collection chamber (10) and the second dust collection chamber (11) are communicated with the dust removal chamber (13).

7. A pollutant source flue gas pump sampling device in accordance with claim 1, wherein: and a cover body (9) is arranged on the side wall of the dust removal shell (6) at one side of the first dust collection chamber (10) and the second dust collection chamber (11).

8. A pollutant source flue gas pump sampling device in accordance with claim 1, wherein: one end of the conduit (19) far away from the L-shaped pipe (17) extends to the inside of the absorption bottle (20).