CN208239151U

CN208239151U - A kind of smoke dust sampling device

Info

Publication number: CN208239151U
Application number: CN201820952184.5U
Authority: CN
Inventors: 王宗奎
Original assignee: Sun Zhao An Safe Technology Ltd
Current assignee: Sun Zhao An Safe Technology Ltd
Priority date: 2018-06-20
Filing date: 2018-06-20
Publication date: 2018-12-14
Anticipated expiration: 2028-06-20

Abstract

The utility model discloses a kind of smoke dust sampling devices, it includes sampling head and sampling pipe, sampling head is connected to sampling pipe fixation, the sampling pipe is also connected with filter device, the filter device includes shell, the first U-tube and the second U-tube, the air inlet of first U-tube, the gas outlet of the second U-tube are connected in sampling pipe two-port, filter cylinder is provided at the gas outlet of first U-tube, opposite both ends for being connected to shell, the lower part of shell connect condensate return pipe respectively for the gas outlet of the air inlet of second U-tube and the first U-tube.

Description

A kind of smoke dust sampling device

Technical field

The utility model relates to flue dust detection field, specially a kind of smoke dust sampling device.

Background technique

In to stationary source in flue dust and flue gas environmental monitoring, wherein fume/smoke monitor is often by environmental monitoring machine Structure uses.Fume/smoke monitor is mainly to the dynamic pressure of flue, static pressure, flue-gas temperature, water capacity, oxygen content, gaseous pollutant (such as: SO₂、CO、CO₂Deng) sampling of measurement of concetration and particulate pollutant.

According to the national standard of smoke dust sampling (particulate matter measurement and gaseous state in the exhaust of GB/T 16157-1996 fixed-contamination The pollutant method of sampling) requirement, in order to obtain representational sample, isokinetic sampling generally uses predicted velocity method, Pi Tuo Four kinds of pipe parallel method, kinetic pressure balancing method, static balance method method of samplings.The country is main in terms of pipeline pollution particulate matter measurement at present Carry out the monitoring of following several indexs: flue dust (flue gas) sampling, smoke temperature test, water capacity test, temperature test, Pitot tube pressure Power test etc..

Current each pollutant emission enterprise mostly uses wet process to remove harmful substance, therefore the exhaust gas discharged generally contains greatly Measure steam.In smoke dust sampling, inside a large amount of condensation vapor to sampling pipe, it is easy to it flows back on sampling head, pollutes filter membrane, Being normally carried out for sampling is influenced, currently mostly using whole heating method sampling, structure is complicated, expends electric energy.It is how effectively anti- The problem of only condensing aqueous reflux, improve operation convenience and stability of instrument, becoming those skilled in the art's current urgent need to resolve.

Utility model content

1. technical problems to be solved

Aiming at the problems existing in the prior art, it the purpose of this utility model is to provide a kind of smoke dust sampling device, keeps away Exempt from the condensation water-soaked that filter cylinder is refluxed.

2. technical solution

To solve the above problems, the utility model adopts the following technical scheme.

A kind of smoke dust sampling device comprising sampling head and sampling pipe, sampling head are connected to sampling pipe fixation, and described adopts Sample pipe is also connected with filter device, and the filter device includes shell, the first U-tube and the second U-tube, the first U The air inlet of type pipe, the second U-tube gas outlet be connected in sampling pipe two-port, set at the gas outlet of the first U-tube It is equipped with filter cylinder, the gas outlet of the air inlet of the second U-tube and the first U-tube opposite both ends for being connected to shell respectively, shell Lower part connect condensate return pipe.

Further, first U-tube includes engraving hole inner and outer tubes, engraves and forms condensation between the inner and outer tubes of hole Water back cavity.

Further, the place that the sampling pipe is connect with the first U-tube air inlet, sampling pipe protrude into the first U-tube Certain length in air inlet.

Further, the end of the first U-tube air inlet is provided with taper ash-stopping cap in the shell.

3. beneficial effect

Compared with the prior art, utility model has the advantages that the utility model structure is simple, design is reasonable, effectively It avoids condensate return containing wet flue gas from soaking filter cylinder and influence testing result, improves the stability of testing result.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

In figure, 1, sampling head, 2, sampling pipe, the 3, first U-tube, 4, shell, 5, ash-stopping cap, 6, condensate return pipe, 7, Second U-tube.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model；The technical scheme in the embodiment of the utility model is carried out Clearly and completely describe；Obviously；The described embodiments are only a part of the embodiments of the utility model；Rather than whole Embodiment, based on the embodiments of the present invention；Those of ordinary skill in the art are without making creative work Every other embodiment obtained；It fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Embodiment 1:

A kind of smoke dust sampling device comprising sampling head 1 and sampling pipe 2, sampling head 1 is connected to the fixation of sampling pipe 2, described Sampling pipe 2 be also connected with filter device, the filter device includes shell 4, the first U-tube 3 and the second U-tube 7, described The air inlet of the first U-tube 3, the gas outlet of the second U-tube 7 be connected in 2 two-port of sampling pipe, the first U-tube 3 It is provided with filter cylinder 8 at gas outlet, the gas outlet of the air inlet of the second U-tube 7 and the first U-tube 3 is opposite respectively to be connected to shell The lower part at the both ends of body 4, shell 4 connects condensate return pipe 6.

First U-tube 3 include engrave hole inner tube 32 and outer tube 31, engrave formed between hole inner tube 32 and outer tube 31 it is cold Condensate back cavity, it is to have the pipeline for engraving hole on tube wall that this, which engraves hole inner tube 32, facilitates condensed water to be engraved hole and is filled into condensed water time Flow chamber.

The place that the sampling pipe 2 is connect with 3 air inlet of the first U-tube, sampling pipe 2 protrude into 3 air inlet of the first U type pipe Certain length in mouthful.

The end of first U-tube gas outlet mouthful is provided with taper ash-stopping cap 5 in shell 4, mistake when equipment being avoided to stop sampling The cigarette ash filtered in device is fallen after rise.

It is described above；The only preferable specific embodiment of the utility model；But the protection scope of the utility model is not It is confined to this；Anyone skilled in the art is within the technical scope disclosed by the utility model；It is practical according to this Novel technical solution and its improvement design is subject to equivalent substitution or change；It should all cover in the protection scope of the utility model It is interior.

Claims

1. a kind of smoke dust sampling device comprising sampling head and sampling pipe, sampling head are connected to sampling pipe fixation, and feature exists Filter device is also connected in, the sampling pipe, the filter device includes shell, the first U-tube and the second U-tube, The air inlet of first U-tube, the gas outlet of the second U-tube are connected in sampling pipe two-port, the first U-tube It is provided with filter cylinder at gas outlet, the gas outlet of the air inlet of the second U-tube and the first U-tube opposite shell that is connected to respectively The lower part at both ends, shell connects condensate return pipe.

2. a kind of smoke dust sampling device according to claim 1, which is characterized in that first U-tube includes engraving hole Inner and outer tubes engrave formation condensate return chamber between the inner and outer tubes of hole.

3. a kind of smoke dust sampling device according to claim 1 or 2, which is characterized in that the sampling pipe and first U-shaped The place of pipe air inlet connection, sampling pipe protrude into certain length in the first U-tube air inlet.

4. a kind of smoke dust sampling device according to claim 3, which is characterized in that in the shell the first U-tube into The end of port is provided with taper ash-stopping cap.