CN211179171U

CN211179171U - Multipoint partition wheel smoke testing and sampling device

Info

Publication number: CN211179171U
Application number: CN201921198765.5U
Authority: CN
Inventors: 孙成永; 舒祥
Original assignee: Beijing Guocheng Environment Technology Co ltd
Current assignee: Beijing Guocheng Environment Technology Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-08-04
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a multiple spot subregion wheel test flue gas sampling device, including sample body, flue gas sample analysis appearance and aspiration pump, the sample body is including being responsible for the body, cross and the female pipe of multiunit sample, and the female pipe of multiunit sample sets up in flue gas and all installs three group's sample daughter pipes in it, and three group's sample daughter pipes are L shapes and its one end passes the female pipe of sample and extends to the female outside of taking a sample, and its other end passes the female pipe top of taking a sample and passes through the joint union coupling cross, be provided with valve one on the joint union, the cross is kept away from the tip interface intercommunication branch body of joint pipe, divides the four-way that the body was used for putting through the female pipe of multiunit sample, divides the body end interface connection to be responsible for body, the intercommunication has the sample pipeline on the main pipe, installs the aspiration pump on the sample pipeline, and the end intercommunication flue gas sample analysis appearance of giving vent to the air of aspiration pump.

Description

Multipoint partition wheel smoke testing and sampling device

Technical Field

The utility model relates to a flue gas sampling test technical field specifically is a multiple spot subregion wheel test flue gas sampling device.

Background

With the development of the power industry in China, the emission of NOx is increased day by day, pollution and influence of NOx are generated, and currently, a Selective Catalytic Reduction (SCR) flue gas denitration device is basically required to be installed on a coal-fired power generating unit to reduce the emission of NOx.

When the bituminous coal unit carries out flue gas denitration by adopting SCR, the representativeness, the accuracy and the stability of monitoring data of the CEMS system directly influence the standard NOx emission effect of the unit and the economic index of safe and reliable operation of the unit. The denitration system belongs to a large-section flow field, is influenced by a plurality of factors such as the flow field, the catalyst efficiency and the like, and the concentration of NOX is not uniformly distributed on the section of the flue actually. Especially, after ultralow emission transformation is carried out, flue process and flue gas characteristics are greatly changed, the uneven distribution of NOx concentration is more prominent, the traditional single-point or three-point sampling can not meet the requirement of on-line monitoring, and the method is a great problem in the general denitration optimization of coal-fired units.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multiple spot subregion wheel test flue gas sampling device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the purpose, the utility model provides a multipoint subarea wheel test flue gas sampling device, including sample body, flue gas sampling analysis appearance and aspiration pump, the sample body includes main pipe body, branch body, cross-joint and multiunit sample mother pipe, multiunit sample mother pipe sets up in flue gas flue and all installs three group's sample daughter pipes in it, three group's sample daughter pipes are L shapes and its length is different, its one end passes sample mother pipe and extends to the sample mother outside of tubes, its other end passes sample mother pipe top and connects the cross-joint through the joint pipe, be provided with valve one on the joint pipe, the end interface that the cross-joint kept away from the joint pipe communicates branch body, branch body is used for the cross-joint that switches on multiunit sample mother pipe, branch body end interface connection main pipe body, intercommunication has the sample pipeline on the main pipe, install the aspiration pump on the sample pipeline, and the exhaust end of pump communicates flue gas sampling analysis appearance, be provided with valve two on the main pipe body, the main pipe is provided with the gas outlet end that the main pipe kept away from valve two and is provided with flue gas pretreatment case, and flue gas pretreatment case.

Preferably, the flue gas pretreatment box comprises a primary filter layer I, a primary filter layer II and a fine filter device, and the primary filter layer I, the primary filter layer II and the fine filter device are sequentially arranged from top to bottom.

Preferably, the fine filtering device comprises a feeding reel and a receiving reel driven by a motor, and the feeding reel and the receiving reel are arranged on two sides of the outer part of the flue gas pretreatment box.

Preferably, a flexible fine filtering layer is wound on the feeding reel, and the end part, far away from the feeding reel, of the flexible fine filtering layer penetrates through the smoke pretreatment box and is fixedly wound on the receiving reel.

Preferably, the first primary filter layer is an activated carbon filter layer.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses novel structure is unique, and is simple reasonable, easy operation, it is with low costs, through setting up the female pipe of multiunit sample in flue gas flue, all install L form sample sub-pipes of three different length on the female pipe of each sample, make the point of sample more, the accuracy and the reliability of sample have been improved, the cross-joint that sets up will sample the collection of sub-pipe, make the flue gas ability intensive mixing of different sampling points, divide the pipe body to put through the cross-joint of the female pipe of multiunit sample simultaneously, mix the flue gas in the female intraductal a plurality of samples sub-pipes of multiunit sample once more, the accuracy and the reliability of sample have further been improved, the valve that sets up on sample sub-pipe is convenient for carry out the flue gas test to every point, convenient for measurement, convenient for operation, the flue gas pretreatment box of setting can be responsible for the flue gas of the body to the sample, it is through primary filter layer one, primary filter layer two, cooperation between the essence is realized, the treatment.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a primary tube; 2. a pipe dividing body; 3. four-way connection; 4. sampling a main pipe; 41. a sampling sub-tube; 5. a joint pipe; 51. a first valve; 6. a sampling pipeline; 7. an air pump; 8. a flue gas sampling analyzer; 9. a second valve; 10. a flue gas pretreatment tank; 11. a first primary filter layer; 12. a second primary filter layer; 13. a fine filtration device; 131. a feed reel; 132. a receiving reel; 133. a flexible fine filter layer.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, the utility model provides a multipoint zoning wheel test flue gas sampling device, including sample tube body, flue gas sampling analysis appearance 8 and aspiration pump 7, the sample tube body includes main tube body 1, branch tube body 2, cross 3 and multiunit sample mother pipe 4, multiunit sample mother pipe 4 sets up in flue gas flue and all installs three group's sample daughter pipe 41 in it, three group's sample daughter pipe 41 is L shapes and its length is different, its one end passes sample mother pipe 4 and extends to the sample mother pipe 4 outside, its other end passes sample mother pipe 4 top and connects cross 3 through joint pipe 5, be provided with valve one 51 on the joint pipe 5, the end interface that cross 3 keeps away from joint pipe 5 communicates branch tube body 2, and branch tube body 2 is used for putting through the cross 3 of multiunit sample mother pipe 4, branch tube body 2 end interface connects main tube body 1, the last intercommunication of aspiration pump 1 has sample pipeline 6, install pump 7 on sample pipeline 6, and the main tube body 8 of pump 7 communicates on the branch tube body 2, the valve 1 is provided with two valves 9, the flue gas pretreatment case is provided with flue gas pretreatment case 10 and flue gas pretreatment case 10 is kept away from.

Specifically, the flue gas pretreatment tank 10 includes a primary filter layer 11, a primary filter layer 12 and a fine filter device 13, and the primary filter layer 11, the primary filter layer 12 and the fine filter device 13 are sequentially arranged from top to bottom.

Specifically, the fine filtering device 13 includes a feeding reel 131 and a receiving reel 132 driven by a motor, and the feeding reel 131 and the receiving reel 132 are disposed on two sides of the exterior of the flue gas pretreatment tank 10.

Specifically, a flexible fine filter layer 133 is wound on the feeding reel 131, and the end of the flexible fine filter layer 133 far away from the feeding reel 131 passes through the flue gas pretreatment tank 10 and is fixedly wound on the receiving reel 132.

Specifically, the first primary filter layer 11 is an activated carbon filter layer.

The working principle is as follows:

the utility model discloses a female pipe 4 of multiunit sample sets up in flue gas flue and all install three group's sample son pipes 41 in it, three group's sample son pipes 41 are L shapes and its length is different, its one end passes the female pipe 4 of sample and extends to the female pipe 4 outside of sample, its other end passes the female pipe 4 top of sample and connects cross 3 through joint pipe 5, through setting up multiunit sample mother pipe 4 in flue gas flue, all install L form sample son pipe 41 of three different length on each sample mother pipe, make the point of sample more, the accuracy and the reliability of sample have been improved, cross 3 that sets up collects sample son pipe 41, make the flue gas ability intensive mixing of different sampling points, divide pipe 2 to put through the cross 3 of the female pipe 4 of multiunit sample simultaneously, mix the flue gas in the female pipe 41 of a plurality of sample son pipes 41 in the multiunit sample mother pipe 4 once more, the accuracy and the reliability of sample have further been improved, the valve that sets up on each sample son pipe 41 is convenient for carrying out the flue gas test to every point, convenient for measurement, the operation, the fine filtration case 10 that sets up can be to novel filtration body 1, the simple low-cost filter device that carries out, it is realized through the simple low-cost filter layer of the simple operation, it is low-cost to carry out, it is low-cost to carry out.

It is worth noting that: the whole device is controlled by the master control button, and the equipment matched with the control button is common equipment, so that the device belongs to the existing well-known technology, and the electrical connection relation and the specific circuit structure of the device are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A multipoint partition wheel test flue gas sampling device is characterized by comprising a sampling pipe body, a flue gas sampling analyzer (8) and an air suction pump (7), wherein the sampling pipe body comprises a main pipe body (1), a branch pipe body (2), a four-way joint (3) and a plurality of groups of sampling main pipes (4), the plurality of groups of sampling main pipes (4) are arranged in a flue gas flue, three groups of sampling sub-pipes (41) are installed in the sampling main pipes, the three groups of sampling sub-pipes (41) are L-shaped, one end of each sampling sub-pipe penetrates through the corresponding sampling main pipe (4) and extends to the outer side of the corresponding sampling main pipe (4), the other end of each sampling sub-pipe penetrates through the top of the corresponding sampling main pipe (4) and is connected with the four-way joint (3) through a joint pipe (5), a first valve (51) is arranged on the joint (5), the end of the four-way joint (3) far away from the corresponding branch pipe body (2), the four-way joint (2) is used for communicating with the four-way joint (3) of the corresponding sampling main pipe (4), the branch pipe body (2) is connected with the main pipe body (1), a second sampling main pipe (10) is arranged on the sampling main pipe body (1), and a flue gas sampling pump (7) is arranged on the main pipe (10) far away from the main pipe (1).

2. The multi-point zoning wheel test smoke sampling device according to claim 1, wherein: the flue gas pretreatment box (10) comprises a primary filter layer I (11), a primary filter layer II (12) and a fine filter device (13), and the primary filter layer I (11), the primary filter layer II (12) and the fine filter device (13) are sequentially arranged from top to bottom.

3. The multi-point zoning wheel test smoke sampling device according to claim 2, wherein: the fine filtering device (13) comprises a feeding reel (131) and a receiving reel (132) driven by a motor, wherein the feeding reel (131) and the receiving reel (132) are arranged on two sides of the outer part of the flue gas pretreatment box (10).

4. The multi-point zoning wheel test smoke sampling device according to claim 3, wherein: the feeding reel (131) is wound with a flexible fine filtering layer (133), and the end part of the flexible fine filtering layer (133) far away from the feeding reel (131) penetrates through the flue gas pretreatment box (10) and is fixedly wound on the receiving reel (132).

5. The multi-point zoning wheel test smoke sampling device according to claim 2, wherein: the first primary filter layer (11) is an activated carbon filter layer.