CN212031066U - Portable detachable flue gas sampling rifle - Google Patents

Abstract

The utility model discloses a portable detachable flue gas sampling gun, which comprises a fly ash collecting and filtering component and a flue gas sampling component, wherein the fly ash collecting and filtering component comprises an ash tank, a cyclone separation device and a filtering device, and the flue gas sampling component comprises a lining pipe and a gun body pipe; the bottom of the cyclone separation device is connected with the upper part of the ash tank, and the upper part of the cyclone separation device is connected with the filtering device; the gun body pipe is arranged above the cyclone separation device, the lining pipe penetrates through the gun body pipe, the lower end of the lining pipe is connected with the filtering device, the upper end of the lining pipe is fixedly connected with the upper end of the gun body pipe, and a heating element is arranged between the gun body pipe and the lining pipe. The flue gas sampling gun can realize simultaneous collection of flue gas components and fly ash in high-humidity and high-ash environments, does not cause the problem of blockage, and ensures the accuracy of analysis results when the collected flue gas is used for analysis.

Description

Portable detachable flue gas sampling rifle

Technical Field

The utility model relates to an environmental protection and environmental monitoring technical field, in particular to portable detachable flue gas sampling rifle.

Background

According to the construction plan of the harmless treatment facilities of the domestic garbage in the thirteen five nationwide cities and towns, the proportion of domestic garbage grade incineration is improved to 50 percent by 2020, the daily incineration capacity is improved to 70 ten thousand tons/day, and the absolute quantity is doubled compared with 2017. As late as 2017, 352 urban domestic waste incineration power plants in China have been built, and the daily treatment capacity is 331442 tons. In 2019-2022, the newly-operated urban domestic garbage incineration power plant in China is expected to keep a high growth situation, so that the accelerated growth of the urban domestic garbage incineration power generation construction scale in China is promoted.

However, the waste incineration process is prone to generate secondary pollutants, such as fly ash, CO and SO₂HCl, HF, heavy metals, etc., which seriously harm human health. The device aims at solving the problem that the existing pollutant detection device is still in the stage of separately collecting pollutants and fly ash in the flue gas, and the sampling gun is very easy to block in the process of collecting flue gas components.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a portable detachable flue gas sampling rifle can realize gathering in the time of flue gas composition and flying dust in high wet, high grey environment, and can not produce the jam problem to the analysis result accuracy when the flue gas that can guarantee to gather is used for the analysis.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

a portable detachable flue gas sampling gun comprises a fly ash collecting and filtering component and a flue gas sampling component, wherein the fly ash collecting and filtering component comprises an ash tank, a cyclone separation device and a filtering device, and the flue gas sampling component comprises a lining pipe and a gun body pipe; the bottom of the cyclone separation device is connected with the upper part of the ash tank, and the upper part of the cyclone separation device is connected with the filtering device; the gun body pipe is arranged above the cyclone separation device, the lining pipe penetrates through the gun body pipe, the lower end of the lining pipe is connected with the filtering device, the upper end of the lining pipe is fixedly connected with the upper end of the gun body pipe, and a heating element is arranged between the gun body pipe and the lining pipe.

Furthermore, the cyclone separation device is provided with a cylindrical barrel and a conical body connected below the cylindrical barrel, the conical body is communicated with the cylindrical barrel, the cylindrical barrel is provided with an air inlet pipe tangent to the barrel wall of the cylindrical barrel, the air inlet pipe is communicated with the inside of the cylindrical barrel, the top center of the cylindrical barrel is provided with an air outlet pipe, and the filtering device is installed in the upper end of the air outlet pipe.

Furthermore, a lower end cover is arranged at the lower part of the conical body of the cyclone separation device and is in threaded connection with the ash tank.

Furthermore, the lower part of the air outlet pipe is a small inner diameter part, the upper part of the air outlet pipe is a large inner diameter part, and the filtering device is arranged in the large inner diameter part of the air outlet pipe.

Further, the filtering device is a ceramic filter.

Furthermore, the heating element is a heating resistance wire.

Furthermore, the upper end part of the lining pipe is fixedly connected with the upper end of the gun body pipe through a lining pipe fixing part.

Furthermore, a holding part is arranged on the outer wall of the upper part of the gun body pipe.

Furthermore, a holding sleeve is sleeved on the holding part.

Further, the lining pipe is a polytetrafluoroethylene pipe.

The utility model has the advantages that: the flue gas sampling gun is composed of a fly ash collecting and filtering component and a flue gas sampling component, and the fly ash collecting and filtering component and the flue gas sampling component are detachable. When the device is used, high-humidity and dust-containing flue gas firstly enters the cyclone separation device, most of fly ash in the flue gas falls into the ash can under the action of gravity, so that the collection of the fly ash is realized, and the collected fly ash can be directly used for combustible analysis; the flue gas from which most of fly ash is removed is filtered by a filtering device to remove fine particles, and then is output through an inner lining pipe, so that flue gas sampling is realized, and the collected flue gas is input into a flue gas analyzer and can be used for pollutant analysis; the fly ash collecting and filtering component is used for filtering fine particles and removing most fly ash, and can also prevent the fly ash and the particles from blocking the lining pipe when smoke is collected; heating member between interior bushing pipe and the rifle body pipe can heat the flue gas, makes the moisture evaporation that the flue gas contains to guarantee that the temperature of the flue gas of gathering reaches high temperature, avoid getting into the vapor condensation in the flue gas behind the flue gas analyzer and lead to the pollutant to dissolve in water and bring serious influence to measuring result. The utility model is suitable for a sampling of smoke pollutants in high wet, high grey flue gas to but synchronous collection flying dust, and easy operation, it is convenient to carry, dismantle, can extensively be used to smoke pollutants test in the msw incineration electricity generation.

Drawings

Fig. 1 is the utility model discloses a structural schematic diagram of portable detachable flue gas sampling rifle.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

A preferred embodiment of a portable detachable smoke sampling gun is shown in fig. 1 (in fig. 1, the gun body tube and the inner liner tube are in a cut-off state). In fig. 1, the flue gas sampling gun comprises a fly ash collecting and filtering assembly and a flue gas sampling assembly, wherein the fly ash collecting and filtering assembly comprises an ash can 1, a cyclone separation device 2 and a filtering device 3, and the flue gas sampling assembly comprises a lining pipe 4 and a gun body pipe 5; wherein, the bottom of the cyclone separation device 2 is connected with the upper part of the ash tank 1, and the upper part of the cyclone separation device 2 is connected with the filter device 3; the lance pipe 5 is arranged above the cyclone separation device 2, and the bottom end of the lance pipe abuts against the top of the cyclone separation device 2; the lining pipe 4 is arranged in the gun body pipe 5 in a penetrating mode, the lower end portion of the lining pipe 4 is connected with the filtering device 3 in a sealing mode, the lining pipe is communicated with the filtering device, the upper end portion of the lining pipe 4 is fixedly connected with the upper end portion of the gun body pipe 5, and a heating element 6 is arranged between the gun body pipe 5 and the lining pipe 4.

The cyclone separation device 2 is made of stainless steel or carbon steel. Specifically, the cyclone separation device 2 is provided with a cylindrical barrel 21 and a conical body 22 which is integrally formed below the cylindrical barrel 21, the cylindrical barrel 21 and the conical body 22 are provided with inner cavities, and the conical body 22 is communicated with the cylindrical barrel 21; an air inlet pipe 23 tangent to the wall of the cylindrical barrel is arranged on the cylindrical barrel 21, the air inlet pipe 23 is communicated with the inner cavity of the cylindrical barrel 21, and an air outlet pipe 24 coaxial with the cylindrical barrel penetrates through the center of the top of the cylindrical barrel 21; the lower part of the air outlet pipe 24 is a small inner diameter part, the upper part of the air outlet pipe 24 is a large inner diameter part, and the filtering device 3 is arranged in the large inner diameter part of the air outlet pipe 24 and is sealed; the lower part of the cone 22 of the cyclone device 2 is provided with a lower end cover 25, and the lower end cover 25 is connected with the ash can 1 through screw threads. The ash tank is made of stainless steel or carbon steel.

In this embodiment, the filter device 3 employs a ceramic filter.

In this embodiment, the heating member 6 is a heating resistance wire wound around the inner liner tube 4; in addition to the manner that the heating resistance wire is wound on the inner lining tube, the heating element can also be formed into other structures by adopting the heating resistance wire and then is arranged between the inner lining tube and the gun body tube; the heating temperature of the heating resistance wire is controlled by a temperature sensor; the heating resistance wire can make the temperature of the flue gas reach 120-180 ℃.

The upper end part of the lining pipe 4 is fixedly connected with the upper end of the gun body pipe 5 through a lining pipe fixing part 7; in this embodiment, the liner pipe fixing member 7 is a ferrule type straight pipe joint. Specifically, a groove is arranged at the center of the top of the gun body tube 5, the upper end of the lining tube 4 extends into the groove, and the lining tube fixing part 7 is tightly fitted on the upper end of the lining tube 4 and clamped in the groove. The lining pipe fixing piece 7 is made of stainless steel.

For convenience of use, a grip part 51 is arranged on the outer wall of the upper end part of the gun body pipe 5; the outer periphery of the holding part 51 is sleeved with a holding sleeve 52.

The material of the gun body tube 5 and the material of the holding part 51 are both stainless steel, and the holding sleeve 52 sleeved on the holding part 51 is a plastic outer sleeve. The liner tube 4 is a polytetrafluoroethylene tube. When the lance tube 5 and the lining tube 4 are manufactured, both the length of the lance tube 5 and the length of the lining tube 4 may be changed according to the depth of the flue. The head (upper part) of the gun body tube can be made into a larger-sized structure compared with other parts.

When the device is used, the holding part 51 of the sampling gun is held by hand, the sampling gun is inserted into a flue, the fly ash filtering and collecting component is positioned in the flue, high-humidity and dusty flue gas enters the cyclone separation device 2 through the feeding pipe 23 of the cyclone separation device 2, most fly ash in the flue gas falls into the ash can 1 under the action of gravity, and the fly ash in the ash can 1 can be directly used for combustible analysis; the flue gas without most fly ash enters the filtering device 3 through the air outlet pipe 24 of the cyclone separation device 2, the filtering device 3 filters the flue gas, fine particles in the flue gas are filtered, the filtered flue gas enters the lining pipe 4, the heating element 6 between the lining pipe 4 and the lance pipe 5 heats the flue gas to enable the temperature of the flue gas to reach 120-180 ℃, and the high-temperature flue gas enters an external flue gas analyzer through the outlet of the lining pipe to analyze the components of the flue gas.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. The utility model provides a portable detachable flue gas sampling rifle which characterized in that: the device comprises a fly ash collecting and filtering component and a flue gas sampling component, wherein the fly ash collecting and filtering component comprises an ash tank, a cyclone separation device and a filtering device, and the flue gas sampling component comprises a lining pipe and a gun body pipe; the bottom of the cyclone separation device is connected with the upper part of the ash tank, and the upper part of the cyclone separation device is connected with the filtering device; the gun body pipe is arranged above the cyclone separation device, the lining pipe penetrates through the gun body pipe, the lower end of the lining pipe is connected with the filtering device, the upper end of the lining pipe is fixedly connected with the upper end of the gun body pipe, and a heating element is arranged between the gun body pipe and the lining pipe.

2. The portable detachable flue gas sampling gun of claim 1, wherein: the cyclone separation device is provided with a cylindrical barrel and a conical body connected below the cylindrical barrel, the conical body is communicated with the cylindrical barrel, the cylindrical barrel is provided with an air inlet pipe tangent to the barrel wall of the cylindrical barrel, the air inlet pipe is communicated with the inside of the cylindrical barrel, the top center of the cylindrical barrel is provided with an air outlet pipe, and the filtering device is installed in the upper end of the air outlet pipe.

3. The portable detachable flue gas sampling gun of claim 2, wherein: the lower part of the conical body of the cyclone separation device is provided with a lower end cover, and the lower end cover is connected with the ash tank through threads.

4. The portable detachable flue gas sampling gun of claim 2, wherein: the lower part of the air outlet pipe is a small inner diameter part, the upper part of the air outlet pipe is a large inner diameter part, and the filtering device is arranged in the large inner diameter part of the air outlet pipe.

5. The portable detachable flue gas sampling gun of claim 1, wherein: the filtering device is a ceramic filter.

6. The portable detachable flue gas sampling gun of claim 1, wherein: the heating element is a heating resistance wire.

7. The portable detachable flue gas sampling gun of claim 1, wherein: the upper end part of the lining pipe is fixedly connected with the upper end of the lance pipe through a lining pipe fixing part.

8. The portable detachable flue gas sampling gun of claim 1, wherein: the outer wall of the upper part of the gun body tube is provided with a holding part.

9. The portable detachable flue gas sampling gun of claim 8, wherein: the holding part is sleeved with a holding sleeve.

10. The portable detachable flue gas sampling gun of claim 1, wherein: the lining pipe is a polytetrafluoroethylene pipe.

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