CN218973936U

CN218973936U - Flue gas smoke and dust sampling pipe

Info

Publication number: CN218973936U
Application number: CN202223515579.4U
Authority: CN
Inventors: 马王; 石露; 衡海超; 李丁丁; 张宗来
Original assignee: Xuzhou Xunming Iot Technology Co ltd
Current assignee: Hubei Delimei Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-05
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a smoke and dust sampling tube, which comprises a smoke gun rod, wherein one end of the smoke gun rod is provided with a sampling head, the side wall of the other end of the smoke gun rod is fixedly provided with a handle, a sealing structure for sealing a gap between a sampling port and the smoke gun rod is sleeved on the smoke gun rod, and the sealing structure can be sleeved at any position on the smoke gun rod; the diameter of the sealing structure can be adjusted. The utility model can fully seal the gap between the outer wall of the smoke gun rod and the inner wall of the sampling port, has simple and easy-to-learn operation, improves the working efficiency, has excellent sealing effect, improves the accuracy of sampling data, ensures that the sampling work can be smoothly carried out, avoids the waste of resources and saves the cost.

Description

Flue gas smoke and dust sampling pipe

Technical Field

The utility model relates to the technical field of flue gas and smoke sampling equipment, in particular to a flue gas and smoke sampling tube.

Background

The flue gas discharged from fixed pollution sources such as thermal power plants, chemical plants and cement plants is one of the important sources of atmospheric pollutants, the discharge amount and the gas components of the flue gas are required to be strictly monitored by environmental protection departments, and parameters such as the type, the concentration and the total amount of the discharged flue gas are required to be measured by various flue gas analysis systems. In the sampling of the fixed pollution source, the smoke dust and the smoke gas in the discharged smoke gas are required to be collected, parameters such as the moisture content, the flow rate, the smoke temperature and the like of the gas are obtained, and the pretreatment operations such as acid adding, condensation water removal and the like are carried out on the collected smoke gas. Before the sampling tube collects the smoke and dust, the sampled smoke gun rod and the sampling port of the fixed pollution source are subjected to sealing treatment to prevent air leakage, otherwise, parameters such as moisture content, flow velocity, smoke temperature and the like are inaccurate.

The tobacco pipe rod of the existing sampling pipe is fixed in size, the inner diameters of different sampling ports for fixing pollution sources are different, the existing sealing treatment mode is often to be plugged into a gap between the tobacco pipe rod and the sampling ports through cotton cloth, and the treatment mode has the following defects:

1. the gas leakage between the smoke gun rod and the sampling port is serious, the sealing effect is poor, and the data error is larger;

2. if the pressure of the sampling port is negative pressure, the suction of the sampling port to the cotton cloth is large, and the cotton cloth is easily sucked into the sampling port, so that the sampling work cannot be continued, and the resource waste is caused.

Disclosure of Invention

Aiming at the technical defects, the utility model aims to provide the smoke and dust sampling tube which can fully seal the gap between the outer wall of the smoke gun rod and the inner wall of the sampling port, is simple and easy to learn in operation, improves the working efficiency, has excellent sealing effect, improves the accuracy of sampling data, ensures that the sampling work can be smoothly carried out, avoids the waste of resources and saves the cost.

In order to solve the technical problems, the utility model adopts the following technical scheme.

The utility model provides a smoke and dust sampling tube, which comprises a smoke gun rod, wherein one end of the smoke gun rod is provided with a sampling head, the side wall of the other end of the smoke gun rod is fixedly provided with a handle, a sealing structure for sealing a gap between a sampling port and the smoke gun rod is sleeved on the smoke gun rod, and the sealing structure can be sleeved at any position on the smoke gun rod; the diameter of the sealing structure can be adjusted.

Preferably, the sealing structure comprises a flexible sealing plug sleeved on the side wall of the smoke pipe rod, the flexible sealing plug is in sleeve-shaped arrangement, an adjusting opening with adjustable size is formed in the side wall of the flexible sealing plug, a tightening ring and an air bag are arranged in the flexible sealing plug, the tightening ring and the air bag are in non-closed annular arrangement, and the tightening ring and the air bag are in shape phase adaptation with the flexible sealing plug.

Preferably, the end part of the flexible sealing plug is connected with an inflating structure for inflating the air bag, the inflating structure comprises an inflating button, a first air duct, a second air duct, a first connecting piece, a second connecting piece, a first one-way valve and a second one-way valve, the first air duct is connected with the end part of the flexible sealing plug, one end of the first air duct, which is close to the flexible sealing plug, penetrates through the wall of the flexible sealing plug and is communicated with the air bag, the first connecting piece is fixed at one end, which is far away from the air bag, of the first air duct, the inflating button and the second connecting piece are respectively arranged at two ends of the second generation air duct, the second connecting piece is in threaded connection with the first connecting piece, the first one-way valve is arranged on the second air duct, and the second one-way valve is arranged on the inflating button; the gas in the air bag can not enter the air charging button through the first one-way valve; the gas outside the inflation button can enter the inflation button through the second one-way valve, and the gas inside the inflation button can not enter the inflation button through the second one-way valve.

Preferably, the end parts of the second connecting piece, which are opposite to the first connecting piece, are provided with sealing gaskets.

Preferably, the tightening ring is made of tin-phosphor bronze alloy.

Preferably, the flexible sealing plug is made of high-temperature resistant silica gel.

Preferably, one end of the pipe rod far away from the sampling head is fixedly provided with a connector, the diameter of the connector is the same as the outer diameter of the pipe rod, and the sealing structure can be sleeved and arranged on the connector.

The smoke sampling tube has the following beneficial effects:

1. according to the utility model, the gap between the smoke gun rod and the sampling port is tightly blocked through the sealing structure, the air bag is inflated through the inflation structure, the air bag volume is enlarged, so that the flexible sealing plug is expanded, the flexible sealing plug is tightly and fully attached to the outer wall of the smoke gun rod and the inner wall of the sampling port, the air bag can be deflated by unscrewing the second connecting piece and the first connecting piece by a user, the operation is simple and easy to learn, the working efficiency is improved, the sealing effect is excellent, and the accuracy of sampling data is improved;

2. according to the utility model, the smoke gun rod is flexibly sealed and clamped under the pressure of the tightening ring and the air bag, so that the friction force between the tightening ring and the air bag is huge, the suction of the smoke gun rod into a negative pressure sampling port is avoided, the smooth proceeding of the sampling work is ensured, and the waste of resources is avoided.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a view showing the installation of the sealing structure and the stem of the smoke gun of the present utility model;

FIG. 3 is a schematic structural view of a seal structure;

FIG. 4 is a cross-sectional view of a seal structure of the present utility model, shown in FIG. 1;

fig. 5 is a cross-sectional view 2 of a seal structure in accordance with the present utility model.

Reference numerals illustrate:

1. the cigarette gun rod, 2, sampling head, 3, handle, 4, seal structure, 5, scale mark, 6, flexible sealing plug, 7, adjustment mouth, 8, lacing ring, 9, gasbag, 10, gas filling structure, 11, gas filling button, 12, first air duct, 13, second air duct, 14, first connecting piece, 15, second connecting piece, 16, first check valve, 17, second check valve, 18, connector.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

as shown in fig. 1 to 5, the utility model provides a flue gas and smoke sampling tube, which comprises a smoke gun rod 1, wherein one end of the smoke gun rod 1 is provided with a sampling head 2, the side wall of the other end of the smoke gun rod 1 is fixed with a handle 3, the smoke gun rod 1 is sleeved with a sealing structure 4 for sealing a gap between a sampling port and the smoke gun rod 1, and the sealing structure 4 can be sleeved at any position on the smoke gun rod 1; the diameter size of the sealing structure 4 can be adjusted, the gap between the smoke gun rod 1 and the sampling port is tightly blocked by the sealing structure 4, and the sealing structure is suitable for the sampling ports with different calibers and has strong universality.

The smoke gun rod 1 is provided with graduation marks 5 so as to facilitate the user to determine the installation position of the sealing structure 4.

Specific:

as shown in fig. 4 and 5, the sealing structure 4 comprises a flexible sealing plug 6 sleeved on the side wall of the smoke pipe rod 1, the flexible sealing plug 6 is in sleeve-shaped arrangement, an adjusting opening 7 with adjustable size is formed in the side wall of the flexible sealing plug 6, a tightening ring 8 and an air bag 9 are arranged in the flexible sealing plug 6, the tightening ring 8 and the air bag 9 are in non-closed annular arrangement, and the tightening ring 8 and the air bag 9 are matched with the flexible sealing plug 6 in shape.

The tightening ring 8 is made of tin phosphor bronze alloy, the tin phosphor bronze has higher fatigue resistance, better elasticity and wear resistance, and can enable the sealing structure 4 to clamp the smoke gun rod 1, and the service life is long.

The flexible sealing plug 6 is made of high-temperature-resistant silica gel, the high-temperature-resistant silica gel has good elasticity and toughness, a lot of silica gel products are provided, and the working temperature of the high-temperature-resistant silica gel can reach 350 ℃.

As still further aspects of the utility model: the end part of the flexible sealing plug 6 is connected with an inflation structure 10 for inflating the air bag 9, the inflation structure 10 comprises an inflation button 11, a first air duct 12, a second air duct 13, a first connecting piece 14, a second connecting piece 15, a first one-way valve 16 and a second one-way valve 17, the first air duct 12 is connected with the end part of the flexible sealing plug 6, one end of the first air duct 12, which is close to the flexible sealing plug 6, penetrates through the wall of the flexible sealing plug 6 and is communicated with the air bag 9, the first connecting piece 14 is fixed at one end, which is far away from the air bag 9, of the first air duct 12, the inflation button 11 and the second connecting piece 15 are respectively arranged at two ends of a second generation air duct, the second connecting piece 15 is in threaded connection with the first connecting piece 14, the first one-way valve 16 is arranged on the second air duct 13, and the second one-way valve 17 is arranged on the inflation button 11; wherein, the gas in the inflation button 11 can enter the air bag 9 through the first one-way valve 16, and the gas in the air bag 9 cannot enter the inflation button 11 through the first one-way valve 16; the gas outside the inflation knob 11 can enter the interior of the inflation knob 11 through the second one-way valve 17, and the gas inside the inflation knob 11 cannot enter the exterior of the inflation knob 11 through the second one-way valve 17;

wherein, the inflation button 11 is a hollow rubber ball, and is deflated by a certain pressure, and the shape is restored after the pressure is removed.

Wherein, the end of the second connecting piece 15 opposite to the first connecting piece 14 is provided with a sealing gasket to ensure the air tightness of the inflatable structure 10.

As still further aspects of the utility model: the one end that sampling head 2 was kept away from to cigarette rifle pole 1 is fixed with connector 18, and the diameter of connector 18 is the same with the external diameter of cigarette rifle pole 1, and seal structure 4 can overlap to establish and install on connector 18, and the connector 18 design has not only made things convenient for seal structure 4 to accomodate, saves space, prevents moreover that seal structure 4 from losing.

Working principle: firstly, a user slowly breaks off the adjusting opening 7 of the sealing structure 4 by hand, the inner diameter of the sealing structure 4 is increased, the user takes the sealing structure off the connector 18 at the moment, after the mounting position of the sealing structure 4 is determined according to the scale marks 5, the user breaks off the adjusting opening 7 by hand, and the sealing structure 4 is sleeved on the smoke gun rod 1 at the position corresponding to the scale marks, so that the mounting is completed; the user inserts the smoke gun rod 1 into the sampling port to enable the sealing structure 4 to be placed in the sampling port, at the moment, the user repeatedly presses the inflating button 11 by hands, under the action of the first one-way valve 16 and the second one-way valve 17 (gas in the inflating button 11 can enter the air bag 9 through the first one-way valve 16, gas in the air bag 9 can not enter the inflating button 11 through the first one-way valve 16, gas outside the inflating button 11 can enter the inside of the inflating button 11 through the second one-way valve 17, gas inside the inflating button 11 can not enter the outside of the inflating button 11), the inflating button 11 charges outside air into the air bag 9, the air bag 9 is enlarged, the flexible sealing plug 6 is inflated to be enlarged, the inner wall of the sampling port of the outer wall of the flexible sealing plug 6 is fully and tightly attached to the outer wall of the smoke gun rod 1, the flexible sealing clamps the smoke gun rod 1, friction force between the two is continuously increased, and the sealing effect is achieved.

After the sampling is finished, the user unscrews the second connecting piece 15 and the first connecting piece 14, the first air duct 12 and the second air duct 13 are separated, namely, the air bag 9 is deflated, the air bag 9 is contracted to enable the flexible sealing plug 6 to be contracted to be smaller, the flexible sealing plug 6 is separated from the outer wall of the smoke gun rod 1 and the inner wall of the sampling port, and the user can take the smoke gun rod 1 out of the sampling port at the moment.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The smoke and dust sampling tube comprises a smoke gun rod (1), wherein a sampling head (2) is arranged at one end of the smoke gun rod (1), and a handle (3) is fixed on the side wall of the other end of the smoke gun rod (1), and the smoke and dust sampling tube is characterized in that a sealing structure (4) for blocking a gap between a sampling port and the smoke gun rod (1) is sleeved on the smoke gun rod (1), and the sealing structure (4) can be sleeved at any position on the smoke gun rod (1); the diameter of the sealing structure (4) can be adjusted.

2. The flue gas and smoke sampling tube according to claim 1, wherein the sealing structure (4) comprises a flexible sealing plug (6) sleeved on the side wall of the smoke gun rod (1), the flexible sealing plug (6) is in sleeve-shaped arrangement, an adjusting opening (7) with adjustable size is formed in the side wall of the flexible sealing plug (6), a tightening ring (8) and an air bag (9) are arranged in the flexible sealing plug (6), the tightening ring (8) and the air bag (9) are in non-closed annular arrangement, and the tightening ring (8) and the air bag (9) are matched with the shape of the flexible sealing plug (6).

3. A smoke and dust sampling tube according to claim 2, characterized in that the end of the flexible sealing plug (6) is connected with an inflating structure (10) for inflating the air bag (9), the inflating structure (10) comprises an inflating button (11), a first air duct (12), a second air duct (13), a first connecting piece (14), a second connecting piece (15), a first one-way valve (16) and a second one-way valve (17), the first air duct (12) is connected with the end of the flexible sealing plug (6), one end of the first air duct (12) close to the flexible sealing plug (6) penetrates through the wall of the flexible sealing plug (6) to be communicated with the air bag (9), the first connecting piece (14) is fixed at one end of the first air duct (12) far away from the air bag (9), the inflating button (11) and the second connecting piece (15) are respectively arranged at two ends of the second generation air duct, the second connecting piece (15) is in threaded connection with the first connecting piece (14), the first one-way valve (16) is arranged on the second air duct (13), and the second one-way valve (17) is arranged on the inflating button (11); wherein, the gas in the inflation button (11) can enter the air bag (9) through the first one-way valve (16), and the gas in the air bag (9) cannot enter the inflation button (11) through the first one-way valve (16); the gas outside the inflation button (11) can enter the inflation button (11) through the second one-way valve (17), and the gas inside the inflation button (11) cannot enter the inflation button (11) through the second one-way valve (17).

4. A smoke and dust sampling tube according to claim 3, characterized in that the ends of the second connection piece (15) opposite the first connection piece (14) are provided with sealing gaskets.

5. A smoke and dust sampling tube according to claim 2, characterized in that the tightening ring (8) is of tin phosphor bronze alloy.

6. A smoke and dust sampling tube according to claim 2, characterized in that the flexible sealing plug (6) is made of high temperature resistant silica gel.

7. The flue gas and smoke sampling tube according to claim 1, wherein one end of the flue pipe rod (1) far away from the sampling head (2) is fixedly provided with a connector (18), the diameter of the connector (18) is the same as the outer diameter of the flue pipe rod (1), and the sealing structure (4) can be sleeved and installed on the connector (18).