CN217155978U

CN217155978U - Gaseous Hg sampling device suitable for high dust concentration

Info

Publication number: CN217155978U
Application number: CN202121947986.5U
Authority: CN
Inventors: 刘含笑; 陈招妹; 崔盈; 孟银灿; 郦冰峰; 刘美玲; 姚斌
Original assignee: Zhejiang Feida Environmental Science and Technology Co Ltd
Current assignee: Zhejiang Feida Environmental Science and Technology Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-08-09
Anticipated expiration: 2031-08-19

Abstract

The utility model provides a gaseous state Hg sampling device suitable for high dust concentration, including sampling pipe, active carbon adsorption pipe and filter mantle, install a plurality of active carbon adsorption pipe in the sampling pipe, the filter mantle is installed to the inlet end of sampling pipe, the sampling rifle is connected to the end of giving vent to anger of sampling pipe, the filter mantle is ceramic filter core cover or fossil fragments sack cover. The two activated carbon adsorption tubes are arranged in the sampling tube side by side, the activated carbon adsorption tubes are multi-section adsorption tubes, and the two adjacent sections of adsorption tubes are separated by quartz wool. This sampling device installs the filter mantle through the inlet end at the sampling pipe, can effectively solve high smoke and dust concentration environment to conventional active carbon adsorption device's interference, improves the measuring accuracy, and more traditional ann rough law operation is simpler, and equipment is more portable.

Description

Gaseous Hg sampling device suitable for high dust concentration

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of pollutant monitoring devices, especially a gaseous state Hg sampling device suitable for high dust concentration.

[ background of the invention ]

The method is commonly called eight-large-bottle method, has extremely complex operation, extremely high requirement on testing personnel and large workload of engineering field testing. The conventional 30B method is simple and convenient to operate but is not suitable for high-smoke environment by sampling through an activated carbon adsorption tube. In addition, the method only filters dust through quartz wool coarsely, sample pollution is easily caused, the testing precision is influenced, once the concentration of the dust is too high, a large amount of Hg-containing particles penetrate through the quartz wool to enter the activated carbon adsorption tube, the sample can be caused to lose efficacy, and the gaseous Hg sampling device suitable for high dust concentration is provided.

[ Utility model ] content

The utility model aims at solving the problem among the prior art, providing a gaseous state Hg sampling device suitable for high dust concentration, not only can improve the measuring accuracy, be convenient for operate moreover.

In order to realize the purpose, the utility model provides a gaseous state Hg sampling device suitable for high dust concentration, including sampling pipe, active carbon adsorption pipe and filter mantle, install a plurality of active carbon adsorption pipe in the sampling pipe, the filter mantle is installed to the inlet end of sampling pipe, the sampling rifle is connected to the end of giving vent to anger of sampling pipe, the filter mantle is ceramic filter core cover or fossil fragments sack cover.

Preferably, the number of the activated carbon adsorption tubes is two, the two activated carbon adsorption tubes are arranged in the sampling tube side by side, the activated carbon adsorption tubes are multi-section adsorption tubes, and the two adjacent sections of the adsorption tubes are separated by quartz wool.

As preferred, the adsorption tube fixing base is still installed to the inlet end of sampling pipe, set up two mounting grooves on the adsorption tube fixing base side by side, the one end of active carbon adsorption pipe is fixed on the mounting groove of adsorption tube fixing base, and the sampling rifle is connected to the other end.

Preferably, the filter mantle is ceramic filter core cover, the filter mantle cover is established and is had the opening in the one end of sampling pipe, the opening of filter mantle is connected with sampling pipe through the clamp.

Preferably, the sampling pipe comprises a large-diameter section and a small-diameter section which are sequentially arranged along the air inlet direction, the opening of the filter cover is connected with the large-diameter section through a hoop, and a sealing ring is further arranged between the inner wall of the filter cover and the outer wall of the sampling pipe.

Preferably, the thickness of the ceramic filter element is less than 0.5 cm.

Preferably, the filter mantle is a keel cloth bag cover, and comprises a keel and a cloth bag cover sleeved outside the keel, wherein the cloth bag cover is fixedly formed through the keel and is fixedly connected with the sampling pipe.

Preferably, the sampling pipe includes big footpath section and the path section that sets gradually along the direction of admitting air, the one end of fossil fragments has the path reduction mouth of a section, the path reduction mouth of a section is connected with the path section of sampling pipe.

The utility model has the advantages that: the utility model discloses an install the filter mantle at the inlet end of sampling pipe, can effectively solve high smoke and dust concentration environment and to conventional active carbon adsorption device's interference, improve the measuring accuracy, and more traditional ann rough method operation is more simple, and equipment is more portable.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic view of the internal structure of embodiment 1 of the present invention;

fig. 2 is a schematic view of the internal structure of embodiment 2 of the present invention.

[ detailed description ] embodiments

Example 1

Referring to fig. 1, the utility model relates to a gaseous state Hg sampling device suitable for high dust concentration, including sampling pipe 1, active carbon adsorption pipe 2 and filter mantle 3, install a plurality of active carbon adsorption pipe 2 in the sampling pipe 1, filter mantle 3 is installed to the inlet end of sampling pipe 1, sampling pipe 1's the end of giving vent to anger connects the sampling gun.

Furthermore, two activated carbon adsorption tubes 2 are arranged in the sampling tube 1 side by side, the activated carbon adsorption tubes 2 are multi-section adsorption tubes, and the two adjacent sections of adsorption tubes are separated by quartz wool. The activated carbon adsorption tubes are arranged side by side in double rows, and parallel samples can be arranged during testing. In this embodiment, the adsorption tube fixing base 21 is still installed to the inlet end of sampling pipe 1, set up two mounting grooves on the adsorption tube fixing base 21 side by side, the one end of active carbon adsorption pipe 2 is fixed on the mounting groove of adsorption tube fixing base 21, and the sampling rifle is connected to the other end.

Further, filter mantle 3 is ceramic filter core cover, 3 covers of filter mantle establish the one end that has the opening at sampling pipe 1, the opening of filter mantle 3 is connected with sampling pipe 1 through the clamp. Sampling pipe 1 includes big footpath section 11 and the path section 12 that sets gradually along the direction of admitting air, the opening of filter mantle 3 is connected with big footpath section 11 through the clamp, still install the sealing washer between 3 inner walls of filter mantle and the outer wall of sampling pipe 1, the sealing washer adopts sealed fluororubber circle, ensures fixed fastening and not air leakage.

Furthermore, the thickness of the ceramic filter element cover is controlled within 0.5cm, the ceramic filter element cover is high-temperature resistant, and the interception efficiency of 3 mu m particles can reach 99.7%.

Example 2

Referring to fig. 2, the difference from embodiment 1 is: the filter mantle 3 is fossil fragments sack cover, locates the outside sack cover of fossil fragments including fossil fragments, cover, the sack cover passes through fossil fragments fixed moulding to with sampling pipe 1 fixed connection, ensure fixed fastening and not leak out. In this embodiment, the cloth bag can be made of PTFE, PPS, etc., and is resistant to high temperature, and the interception efficiency of 3 μm particles can reach 99.7%. Sampling pipe 1 includes along the big footpath section 11 and the path section 12 that the direction of admitting air set gradually, the one end of fossil fragments has the path and contracts the mouth of contracting, the path that contracts mouth of contracting is connected with sampling pipe 1's path section 12.

The utility model discloses the working process:

the utility model relates to a gaseous state Hg sampling device suitable for high dust concentration adopts ceramic filter core cover or fossil fragments sack cover to establish and filters at the inlet end of sampling pipe 1, can filter more smoke and dust, then through the mercury absorption sample that carries out of active carbon adsorption pipe 2 in to the flue gas again, reduces high smoke and dust concentration environment effectively and to active carbon adsorption device's interference, improves the measuring accuracy.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. A gaseous Hg sampling device suitable for high dust concentration, which is characterized in that: including sampling pipe (1), activated carbon adsorption pipe (2) and filter mantle (3), install a plurality of activated carbon adsorption pipe (2) in sampling pipe (1), filter mantle (3) are installed to the inlet end of sampling pipe (1), the end of giving vent to anger of sampling pipe (1) is connected the sampling gun, filter mantle (3) are ceramic filter core cover or fossil fragments sack cover.

2. A gaseous Hg sampling apparatus, suitable for high dust concentrations, as claimed in claim 1, wherein: the two activated carbon adsorption tubes (2) are arranged in the sampling tube (1) side by side, the activated carbon adsorption tubes (2) are multi-section adsorption tubes, and quartz wool is adopted between the two adjacent sections of adsorption tubes for separation.

3. A gaseous Hg sampling apparatus, suitable for high dust concentrations, according to claim 2, wherein: the air inlet end of sampling pipe (1) still installs adsorption tube fixing base (21), set up two mounting grooves on adsorption tube fixing base (21) side by side, the one end of active carbon adsorption pipe (2) is fixed on the mounting groove of adsorption tube fixing base (21), and the sampling rifle is connected to the other end.

4. A gaseous Hg sampling apparatus, suitable for high dust concentrations, as claimed in claim 1, wherein: the filter mantle (3) are ceramic filter element covers, the one end that the sampling pipe (1) was established in filter mantle (3) cover has the opening, the opening of filter mantle (3) is connected with sampling pipe (1) through the clamp.

5. A gaseous Hg sampling apparatus, suitable for high dust concentrations, according to claim 4, wherein: sampling pipe (1) is including big footpath section (11) and path section (12) that set gradually along the direction of admitting air, the opening of filter mantle (3) is connected with big footpath section (11) through the clamp, still install the sealing washer between the outer wall of filter mantle (3) inner wall and sampling pipe (1).

6. A gaseous Hg sampling device adapted for high dust concentrations as claimed in claim 5, wherein: the thickness of the ceramic filter element is less than 0.5 cm.

7. A gaseous Hg sampling apparatus, suitable for high dust concentrations, as claimed in claim 1, wherein: the filter mantle (3) is a keel cloth bag cover, comprises a keel and a cloth bag cover sleeved outside the keel, and the cloth bag cover is fixedly formed through the keel and fixedly connected with the sampling pipe (1).

8. A gaseous Hg sampling apparatus, suitable for high dust concentrations, according to claim 7, wherein: sampling pipe (1) is including following big footpath section (11) and path section (12) that the direction of admitting air set gradually, the one end of fossil fragments has the path and contracts the mouth of a mouthful portion, the path section (12) of the mouth of a mouthful portion of contracting and sampling pipe (1) are connected.