CN102607899A - Fume sampling (gun) pipe with replaceable and heatable anti-adhesion sampling head - Google Patents

Abstract

The invention provides a smoke sampling (gun) tube with a replaceable and heatable anti-adhesion sampling head, which solves the problems of frequent replacement of the sampling gun and inaccurate sampling in the prior art. The head of the cylindrical smoke sampling head cylinder (1) is provided with a smoke and dust inlet cover, the connecting plug (3) is provided with a groove (6), and the tail of the cylindrical smoke dust sampling head cylinder The gas outlet (8) is connected to the smoke sampling gun barrel (9) through a threaded thread, and a spiral electric heating tube (5) and a filter cartridge (7) are arranged in the cylindrical smoke sampling head cylinder, and the spiral electric heating tube ( 5) Fixedly installed on the outer step of the fixed end ring (4) of the filter cartridge (7), on the surface of the connecting plug (3), the inner surface of the smoke (gas) inlet end cover (2), and the fixed end ring (4) ) and the outer surface of the spiral electric heating tube (5) are provided with Teflon anti-sticking coating. The invention has reasonable structure and convenient disassembly and use.

Description

Smoke sampling (gun) tube with replaceable heatable anti-stick sampling head

technical field

The invention relates to a smoke sampling device, in particular to a smoke sampling (gun) tube with a replaceable smoke sampling head, which can be heated and has an anti-adhesion function. the

Background technique

Soot sampling is an important part of boiler emission, equipment performance test and environmental protection supervision in thermal power plants. After adding desulfurization equipment to the flue gas discharge of thermal power plant boilers, the moisture content of the flue gas increases, and the sampling conditions change erratically. Sampling cannot be carried out or fails, and the sampling filter cartridge and the smoke sampling head are stuck together, so that the original weight of the sampling filter cartridge changes, resulting in abnormal sampling results, and the quality of smoke sampling cannot be guaranteed. In addition, in the dust removal process of thermal power plant boilers, the dust content of the measurement points after the dust removal, desulfurization, and denitrification equipment is different. Sampling requirements for different soot concentrations. the

Contents of the invention

The invention provides a smoke sampling (gun) tube with a replaceable and heatable anti-adhesion sampling head, which solves the problems of inconvenient portability, large equipment investment, frequent replacement of sampling guns and inaccurate sampling in the prior art. the

The present invention solves the above problems through the following solutions:

A smoke and dust sampling (gun) tube with a replaceable, heatable and anti-adhesion sampling head, comprising a circular tube-shaped smoke and dust sampling head cylinder, and a smoke (gas) air intake is movable at the head of the circular tube-shaped smoke and dust sampling head cylinder The end cover, the connection plug of the air intake end cover is fixed in the smoke (gas) air intake end cover, and the connection plug is provided with a groove, and the connection plug is connected with the movable plug of the inner hole of the fixed end ring of the filter cartridge , the tail gas outlet end of the cylindrical smoke sampling head cylinder is connected with the smoke sampling gun barrel through a thread, and a spiral electric heating tube is arranged between the inner wall of the cylindrical smoke sampling head cylinder and the filter cartridge. The shaped electric heating tube is fixed on the outer step of the fixed end ring of the filter cartridge, on the surface of the connecting plug, the inner surface of the smoke (gas) inlet end cover, the surface of the fixed end ring, and the outer surface of the spiral electric heating tube. Provided with Teflon anti-stick coating.

An aeronautical electrical access socket with a spiral electric heating tube is arranged on the cylindrical smoke sampling head cylinder, an aeronautical electrical access plug and a pitot tube are respectively arranged on the smoke sampling gun barrel, and the smoke sampling gun barrel is movable. Extended barrel. the

The invention is reasonable in structure, easy to disassemble and use, and solves the problem of rupture of the sampling filter cartridge caused by moisture absorption or sampling of the sampling filter cartridge and smoke dust during the long-term sampling of the high-humidity flue (gas) in the existing smoke (gas) sampling equipment. The technical problem that the sampling cannot be carried out, fails or affects the sampling results due to the sticking of the head, improves the sampling quality, and solves the problem of the existing smoke sampling device. Different sampling heads are used for different situations and sampling purposes, so that the smoke and dust sampling is more targeted. At the same time, it plays the role of one sampling barrel for multiple purposes and one sampling barrel for several sampling barrels. It is suitable for various smoke and dust sampling equipment. . the

Description of drawings

Fig. 1 is the structural representation of the present invention. the

Detailed ways

The present invention is described below in conjunction with accompanying drawing:

A smoke and dust sampling (gun) tube with a replaceable, heatable and anti-adhesion sampling head, comprising a round pipe-shaped smoke and dust sampling head cylinder 1, and smoke (gas) is movable on the head of the round pipe-shaped smoke and dust sampling head cylinder 1 Intake end cover 2, the connection plug 3 of the air intake end cover is fixedly arranged in the smoke dust (gas) intake end cover 2, and a groove 6 is arranged on the connection plug 3, and the fixed end of the connection plug 3 and the filter cartridge 7 The inner holes of the ring 4 are plugged together, and the tail gas outlet 8 of the cylindrical smoke sampling head cylinder 1 is connected with the smoke sampling gun barrel 9 through a threaded thread. There is a spiral electric heating tube 5 between the filter cartridge 7, and the spiral electric heating tube 5 is fixed on the outer step of the fixed end ring 4 of the filter cartridge 7, and the surface of the connecting plug 3, the smoke (gas) intake The inner surface of the end cap 2, the surface of the fixed end ring 4, the outer surface of the spiral electric heating tube 5, and the inner and outer surfaces of the filter cartridge 7 are all provided with a Teflon anti-sticking coating.

The aeronautical electrical access socket 10 of the spiral electric heating tube 5 is arranged on the cylinder body 1 of the cylindrical smoke sampling head, and the aeronautical electrical access plug 11 and the pitot tube 12 are respectively arranged on the smoke sampling gun barrel 9, and the smoke sampling The activity on gun barrel 9 is provided with extension connection (gun) pipe, to adapt to different sampling requirements. the

When the present invention is in use, different types of filter cartridges 7 and sampling media can be used according to the smoke sampling requirements. The size of the cylinder body 1 of the cylindrical smoke sampling head changes with the type of the filter cartridge 7 and the sampling medium. The aviation electrical access socket 10 is plugged together with the aviation electrical access plug 11 provided on the smoke sampling gun barrel 9, and the filter cartridge 7 of the corresponding glass fiber is put into the electrically heatable spiral electric heating tube 5, Use the connection plug 3 to fasten the dust (gas) inlet end cover 2 to the cylinder body 1 of the circular pipe-shaped dust sampling head, and then carry out the dust sampling. The filter cartridge 7 is heated and dried to ensure that the filter cartridge 7 is wet during the sampling time and will not cause the rupture caused by the increase of sampling resistance. After the smoke and dust sampling is completed, the glass fiber filter cartridge 7 can be taken out. The inner wall of the smoke (gas) inlet pipe is also sprayed with Teflon anti-stick coating, and the surface of the connecting plug 3, the inner surface of the smoke (gas) inlet end cover 2, the surface of the fixed end ring 4, the spiral The outer surface of the electric heating tube 5 is provided with a Teflon anti-sticking coating to ensure that the glass fiber filter cartridge 7 is completely separated from the cylindrical smoke sampling head cylinder 1, so that no sticking occurs in the fixed part of the support. The sampling quality of smoke and dust is guaranteed. the

Claims (2)

1. one kind has replaceable smoke dust sampling (rifle) pipe that heats the anti sampling head; Comprise tubular smoke dust sampling head cylindrical shell (1); Head movement at tubular smoke dust sampling head cylindrical shell (1) is provided with flue dust (gas) air inlet end cap (2); Be provided with the connection plug (3) of air inlet end cap at flue dust (gas) air inlet end cap (2) internal fixation; Connection plug (3) is provided with groove (6); Connection plug (3) is connected together with the endoporus motion stops of the fixedly end ring (4) of filter cylinder (7); It is characterized in that the afterbody outlet side (8) of tubular smoke dust sampling head cylindrical shell (1) links together through screw thread and smoke dust sampling gun barrel (9), between tubular smoke dust sampling head cylindrical shell (1) madial wall and filter cylinder (7), be provided with spirality electric heating tube (5); Spirality electric heating tube (5) is fixedly installed on the outer steps of fixedly end ring (4) of filter cylinder (7), on the surface of connection plug (3), flue dust (gas) air inlet end cap (2) inner surface, fixedly the surface, the outside surface of spirality electric heating tube (5) of end ring (4) are provided with the Teflon anti-stick coating.

2. a kind of replaceable smoke dust sampling (rifle) pipe that heats the anti sampling head that has according to claim 1; It is characterized in that; The aviation electricity that tubular smoke dust sampling head cylindrical shell (1) is provided with spirality electric heating tube (5) inserts socket (10); On smoke dust sampling gun barrel (9), be respectively arranged with the aviation electricity and insert plug (11) and pitot tube (12), be movably set with lengthening on the smoke dust sampling gun barrel (9) and connect (rifle) pipe.

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