CN211627093U

CN211627093U - Flue gas sampling device of denitration flue

Info

Publication number: CN211627093U
Application number: CN201922287911.8U
Authority: CN
Inventors: 宫立江
Original assignee: Baoding Zhengde Power Technology Co ltd
Current assignee: Baoding Zhengde Power Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-10-02
Anticipated expiration: 2029-12-18

Abstract

The utility model relates to a denitration technology field just discloses a flue gas sampling device of denitration flue, including fixed plate one and dead lever, the front of fixed plate one is located the position that is close to the outside and has seted up exhaust opening, the back of fixed plate one is located the position fixedly connected with seal cover near the outer wall. This flue gas sampling device of denitration flue, set up the gas collection baffle, the inside gas that has improved the flue through the gas collection baffle gets into the inside speed of sampling shell, through connecting the spout, the cooperation of connecting stake and arc connecting plate, connect four sampling shells, and make every sampling shell sample in turn, the degree of accuracy and the credibility of sampling detection have been improved, through sealed baffle, the card stake, a separator, the closing plate, the circulation opening, spacing groove one, the cooperation of spacing groove two and spread groove, gas among the sampling shell is discharged to the sampling process, and seal sampling shell automatically in the sampling process, the precision of sampling has been improved.

Description

Flue gas sampling device of denitration flue

Technical Field

The utility model relates to a denitration technology field specifically is a flue gas sampling device of denitration flue.

Background

When denitration treatment is carried out to the cigarette of burning, often need take a sample in the flue, monitor the nitric oxide content of flue gas, when sampling, general sampling device only uses simple bottle to sample, can't fully discharge the gas in the bottle among the sampling process, lead to final measuring result inaccurate to the contingency appears easily in the mode of single sample, the degree of accuracy that leads to the monitoring appears the deviation easily.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a flue gas sampling device of denitration flue has solved the unable complete discharge of sampling device inside air when sampling, leads to the decline of the sampling test result degree of accuracy and the problem that the deviation appears easily in single sampling test result.

(II) technical scheme

For the degree of accuracy purpose that realizes above-mentioned improvement detection, the utility model provides a following technical scheme: the utility model provides a flue gas sampling device of denitration flue, includes fixed plate one and dead lever, the front of fixed plate one is located the position that is close to the outside and has seted up exhaust opening, the back of fixed plate one is located the position fixedly connected with seal cover near the outer wall, the outer wall of seal cover is located the position that is close to the left and has seted up the collection opening, the back fixedly connected with fixed plate two of seal cover, the outer wall of seal cover is located the position fixedly connected with gas collection baffle of collection opening top, the inside of seal cover is provided with the sampling shell, the lateral wall of sampling shell is provided with connecting device, the inside of sampling shell is provided with automatic sealing device, the dead lever is connected with the front fixed connection of fixed plate one.

Preferably, connecting device is including connecting spout, connection stake and arc connecting plate, it is positive to connect the spout to set up increasing at fixed plate two, the lateral wall fixed connection of connection stake and sampling shell, the one end of sampling shell is kept away from to the connection stake and the connection spout slip joint, the arc connecting plate is located the position fixed connection who leans on the right with the outer wall of sampling shell, through the cooperation of connecting spout, connection stake and arc connecting plate, makes four sampling shells sample in turn, and four samples have improved the degree of accuracy and the credibility that detect.

Preferably, the automatic sealing device comprises a sealing baffle plate, a clamping pile, a partition plate, a sealing plate, a circulation opening, a first limiting groove, a second limiting groove and a connecting groove, the sealing baffle plate is fixedly connected with the opening of the sampling shell and is located at a position close to the bottom end, the sealing plate is movably clamped inside the sealing baffle plate, the clamping pile is fixedly connected with the side wall of the sealing plate, the clamping pile penetrates through the sampling shell and extends to the front face of the sampling shell, the partition plate is fixedly connected with the inner wall of the sampling shell, the circulation opening is arranged on the front face of the sampling shell and is located at a position close to the upper left corner, the first limiting groove is arranged on the front face of the second fixing plate and is located at the inner side of the connecting sliding groove, the second limiting groove is arranged on the front face of the second fixing plate and is located at a position outside the connecting sliding groove, and the connecting groove is arranged, through the cooperation of sealing baffle, card stake, baffle, closing plate, circulation opening, spacing groove one, spacing groove two and spread groove, improved the degree of accuracy of sampling shell sampling.

Preferably, the connection pile is far away from two gyro wheels of one end fixedly connected with of sampling shell, with the inside of two gyro wheels card income connection spouts, has reduced the required thrust of rotation through the cooperation of two gyro wheels.

Preferably, the air discharge opening communicates with the circulation opening, and air inside the sampling case is discharged through the circulation opening and the air discharge opening.

Preferably, the depth of the connecting sliding groove is smaller than that of the first limiting groove, the second limiting groove and the connecting groove, so that the blocking pile and the connecting pile are not interfered with each other during operation.

Preferably, the inner cavity of the sampling shell is divided into two communicated cavities by the partition plate, so that a channel is formed inside the sampling shell, and air inside the sampling shell is discharged while smoke is collected.

Preferably, the sealing plate is L-shaped, and the L-shaped design makes the sealing plate simultaneously seal the opening above the sealing baffle and the flow opening when the sealing plate moves upwards.

Compared with the prior art, the utility model provides a flue gas sampling device of denitration flue possesses following beneficial effect:

1. this flue gas sampling device of denitration flue sets up the gas collection baffle, has improved the inside gas of flue and has got into the inside speed of sampling shell through the gas collection baffle, through the cooperation of connecting spout, connection stake and arc connecting plate, connects four sampling shells to make every sampling shell sample in turn, improved the degree of accuracy and the credibility that the sampling detected.

2. The flue gas sampling device of the denitration flue is provided with a sealing baffle, a clamping pile, a partition plate, a sealing plate, a circulation opening, a first limiting groove, a second limiting groove and a connecting groove, when the flue gas in the flue enters the sampling shell, the flue gas pushes the air in the sampling shell backwards, and the air in the sampling shell is discharged out of the sampling shell through the circulation opening, so that the sampling accuracy is improved, the sampling shell is pushed to rotate upwards by the upward flowing air flow, the clamping pile is driven to move when the sampling shell rotates upwards, the clamping pile is driven to move from the inside of the first limiting groove to the inside of the second limiting groove through the connecting groove, and the sealing plate is driven to move upwards when the clamping pile moves, the opening and the circulation opening of sealing baffle top are sealed through the closing plate, prevent that the sampling from accomplishing the inside that the back outside air got into the sampling shell, have further improved the degree of accuracy of sampling.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a sectional view of a second structure of the fixing plate of the present invention;

fig. 4 is the utility model discloses a sampling shell structure section.

Wherein: 1. a first fixing plate; 2. an exhaust opening; 3. sealing sleeves; 4. a collection opening; 5. a second fixing plate; 6. a gas collection baffle; 7. a sampling housing; 8. a connecting device; 801. connecting the sliding chute; 802. connecting piles; 803. an arc-shaped connecting plate; 9. an automatic sealing device; 901. sealing the baffle; 902. pile clamping; 903. A partition plate; 904. a sealing plate; 905. a flow-through opening; 906. a first limiting groove; 907. a second limiting groove; 908. Connecting grooves; 10. and (5) fixing the rod.

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. 1-4, the utility model provides a flue gas sampling device for denitration flue, which comprises a first fixing plate 1 and a fixing rod 10, wherein an exhaust opening 2 is arranged on the front side of the first fixing plate 1 and at a position close to the outer side, a sealing sleeve 3 is fixedly connected with the back side of the first fixing plate 1 and at a position close to the outer wall, a collecting opening 4 is arranged on the outer wall of the sealing sleeve 3 and at a position close to the left side, a second fixing plate 5 is fixedly connected with the back side of the sealing sleeve 3, a gas collecting baffle 6 is fixedly connected with the outer wall of the sealing sleeve 3 and at a position above the collecting opening 4, the gas collecting baffle 6 is arranged, the speed of gas in the flue entering the sampling shell 7 is improved through the gas collecting baffle 6, the flue gas is rapidly introduced into the sampling shell 7, the sampling shell 7 is driven to rotate through the, the side wall of the sampling shell 7 is provided with a connecting device 8, the interior of the sampling shell 7 is provided with an automatic sealing device 9, and a fixing rod 10 is fixedly connected with the front face of the first fixing plate 1.

Connecting device 8 is including connecting spout 801, connecting pile 802 and arc connecting plate 803, connecting spout 801 sets up in the increase of fixed plate two 5 openly, the lateral wall fixed connection of connecting pile 802 and sampling shell 7, two gyro wheels of one end fixedly connected with that sampling shell 7 was kept away from to connecting pile 802, two gyro wheels card income are connected the inside of spout 801, the required thrust of rotation has been reduced through the cooperation of two gyro wheels, the one end that sampling shell 7 was kept away from to connecting pile 802 with connect spout 801 slip joint, arc connecting plate 803 and sampling shell 7's outer wall and be located the position fixed connection that leans on the right, through connecting spout 801, the cooperation of connecting pile 802 and arc connecting plate 803, connect four sampling shells 7, and make every sampling shell sample in turn, sampling detection's degree of accuracy and credibility have been improved.

The automatic sealing device 9 comprises a sealing baffle 901, a clamping pile 902, a partition plate 903, a sealing plate 904, a circulation opening 905, a first limiting groove 906, a second limiting groove 907 and a connecting groove 908, wherein the sealing baffle 901 is fixedly connected with the opening of the sampling shell 7 at a position close to the bottom end, the sealing plate 904 is movably clamped inside the sealing baffle 901, the sealing plate 904 is in an L shape, the L-shaped design enables the sealing plate 904 to simultaneously seal the opening above the sealing baffle 901 and the circulation opening 905 when moving upwards, the clamping pile 902 is fixedly connected with the side wall of the sealing plate 904, the clamping pile 902 penetrates through the sampling shell 7 and extends to the front face of the sampling shell 7, the partition plate 903 is fixedly connected with the inner wall of the sampling shell 7, the partition plate 903 divides the inner cavity of the sampling shell 7 into two communicated cavities, a channel is formed inside the sampling shell 7, and accordingly air inside the sampling shell 7 is exhausted while smoke is collected, a circulation opening 905 is arranged on the front face of the sampling shell 7 and is positioned near the upper left corner, an exhaust opening 2 is communicated with the circulation opening 905, air in the sampling shell 7 is exhausted through the circulation opening 905 and the exhaust opening 2, a first limit groove 906 is arranged on the front face of a second fixing plate 5 and is positioned at the inner side of the connecting sliding groove 801, a second limit groove 907 is arranged on the front face of the second fixing plate 5 and is positioned at the outer side of the connecting sliding groove 801, a connecting groove 908 is arranged on the front face of the second fixing plate 5 and is positioned between the first limit groove 906 and the second limit groove 907, the connecting groove 908 is used for communicating the first limit groove 906 and the second limit groove 907, the depth of the connecting sliding groove 801 is smaller than that of the first limit groove 906, the second limit groove 907 and the connecting groove 908, so that the pile 902 and the pile 802 do not interfere with each other during operation, and a sealing baffle 901, a pile, Spacing groove one 906, spacing groove two 907 and spread groove 908, the inside air of shell 7 will be sampled when flue gas gets into inside the sampling shell 7 promotes backward in the flue, the inside air of shell 7 of sampling passes through inside circulation opening 905 discharge sampling shell 7 during, the accuracy of sampling has been improved, the air current that flows upwards can promote sampling shell 7 and upwards rotate, it removes to drive card stake 902 when sampling shell 7 upwards rotates, make card stake 902 remove to spacing groove two 907 through spread groove 908 by the inside of spacing groove one 906, card stake 902 drives closing plate 904 rebound when removing, seal with the opening and the circulation opening 905 of sealing baffle 901 top through closing plate 904, prevent that the sampling from getting into the inside of sampling shell 7 after the completion outside air, the degree of accuracy of sampling has further been improved.

When the device is used, the fixed rod 10 is held to extend the device into a denitration flue, flue gas flows upwards in the flue, the flue gas is blocked by the gas collection baffle 6 and quickly enters the inside of the sampling shell 7 through the collection opening 4, when the flue gas enters the inside of the sampling shell 7, the flue gas pushes air inside the sampling shell 7 backwards, the air inside the sampling shell 7 is discharged out of the inside of the sampling shell 7 through the circulation opening 905, the sampling accuracy is improved, the upward flowing air flow can push the sampling shell 7 to rotate upwards, the sampling shell 7 drives the clamping pile 902 to move when rotating upwards, the clamping pile 902 is moved from the inside of the first limiting groove 906 to the inside of the second limiting groove 907 through the connection groove 908, the clamping pile 902 drives the sealing plate 904 to move upwards when moving, and the opening and the circulation opening 905 above the sealing baffle are sealed through the sealing plate 904, through the cooperation of the connecting sliding groove 801, the connecting pile 802 and the arc-shaped connecting plate 803, the four sampling shells 7 are sequentially sampled.

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. The utility model provides a flue gas sampling device of denitration flue, includes fixed plate (1) and dead lever (10), its characterized in that: an exhaust opening (2) is arranged on the front surface of the first fixing plate (1) and is positioned close to the outer side, a sealing sleeve (3) is fixedly connected with the back of the first fixing plate (1) and is positioned close to the outer wall, a collecting opening (4) is arranged on the outer wall of the sealing sleeve (3) and is positioned close to the left side, the back of the sealing sleeve (3) is fixedly connected with a second fixing plate (5), the outer wall of the sealing sleeve (3) is fixedly connected with a gas collecting baffle (6) at a position above the collecting opening (4), a sampling shell (7) is arranged in the sealing sleeve (3), a connecting device (8) is arranged on the side wall of the sampling shell (7), an automatic sealing device (9) is arranged in the sampling shell (7), the fixing rod (10) is fixedly connected with the front face of the first fixing plate (1).

2. The flue gas sampling device of the denitration flue of claim 1, characterized in that: connecting device (8) are including connecting spout (801), connecting pile (802) and arc connecting plate (803), connecting spout (801) is seted up and is being increased at fixed plate two (5) openly, the lateral wall fixed connection of connecting pile (802) and sampling shell (7), the one end of sampling shell (7) is kept away from and is connected spout (801) slip joint to connecting pile (802), arc connecting plate (803) and the outer wall of sampling shell (7) are located the position fixed connection who leans on the right side.

3. The flue gas sampling device of the denitration flue of claim 2, characterized in that: the automatic sealing device (9) comprises a sealing baffle plate (901), a clamping pile (902), a partition plate (903), a sealing plate (904), a circulation opening (905), a limiting groove I (906), a limiting groove II (907) and a connecting groove (908), wherein the sealing baffle plate (901) is fixedly connected with the opening of the sampling shell (7) at a position close to the bottom end, the sealing plate (904) is movably clamped inside the sealing baffle plate (901), the clamping pile (902) is fixedly connected with the side wall of the sealing plate (904), the clamping pile (902) penetrates through the sampling shell (7) and extends to the front face of the sampling shell (7), the partition plate (903) is fixedly connected with the inner wall of the sampling shell (7), the circulation opening (905) is arranged on the front face of the sampling shell (7) and is located at a position close to the upper left corner, the limiting groove I (906) is arranged on the front face of the fixing plate II (5) and is located at a position on the inner side of the connecting sliding groove (, the second limiting groove (907) is formed in the front face of the second fixing plate (5) and located at the position on the outer side of the connecting sliding groove (801), and the connecting groove (908) is formed in the front face of the second fixing plate (5) and located between the first limiting groove (906) and the second limiting groove (907).

4. The flue gas sampling device of the denitration flue of claim 2, characterized in that: and one end of the connecting pile (802) far away from the sampling shell (7) is fixedly connected with two rollers.

5. The flue gas sampling device of the denitration flue of claim 3, characterized in that: the exhaust opening (2) communicates with a flow opening (905).

6. The flue gas sampling device of the denitration flue of claim 3, characterized in that: the depth of the connecting sliding groove (801) is smaller than that of the first limiting groove (906), the second limiting groove (907) and the connecting groove (908).

7. The flue gas sampling device of the denitration flue of claim 3, characterized in that: the inner cavity of the sampling shell (7) is divided into two communicated cavities by the partition plate (903).

8. The flue gas sampling device of the denitration flue of claim 3, characterized in that: the sealing plate (904) is L-shaped.