CN210571613U - Flue gas sampling probe and flue gas detection device - Google Patents
Flue gas sampling probe and flue gas detection device Download PDFInfo
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- CN210571613U CN210571613U CN201921516682.6U CN201921516682U CN210571613U CN 210571613 U CN210571613 U CN 210571613U CN 201921516682 U CN201921516682 U CN 201921516682U CN 210571613 U CN210571613 U CN 210571613U
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- filter
- sampling probe
- protection plate
- smoke
- flue gas
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Abstract
The utility model relates to a flue gas sampling probe and smoke detection device, flue gas sampling probe includes: a sampling probe extending in the front-rear direction; the filter is arranged on the sampling probe tube; a protection plate disposed upstream of the filter to prevent the smoke from eroding the filter; protection plate fixed connection is on the sample probe tube, perhaps sample probe tube fixedly connected with mount pad, and protection plate fixed connection is on the mount pad. Through set up the guard plate that is in the filter upper reaches on the mount pad of sampling probe or sampling probe, when sampling in smoke sampling probe stretches into the flue, make the flue gas directly strike on the guard plate, avoid the flue gas to strike the filter, protected the filter and avoided the erosion, improved smoke sampling probe's life.
Description
Technical Field
The utility model relates to a flue gas sampling probe and smoke detection device.
Background
In the power industry, coal-fired power generation produces a large amount of combustion products, including CO and SO2、SO3And NOXAnd the gas has great harm to the ecological environment and human body. In the operation process of the boiler, in order to know gas parameters in the flue, a sampling probe is mostly adopted to extend into the flue for flue gas collection.
The application publication number of the invention is CN109596783A, which discloses a flue gas analysis system, comprising a sampling pipeline, wherein one end of the sampling pipeline is connected with a probe, the probe extends into a flue to collect flue gas, the other end of the sampling pipeline is connected to a flue gas analyzer, and the flue gas collected by the probe is conveyed to the flue gas analyzer through the sampling pipeline for detection and analysis. Because the flue gas in the flue contains a large amount of dust, and the flow rate of the flue gas is high, the filter of the probe can be eroded by the flue gas in the working process, the filter of the probe can not be normally used easily, and the service life of the probe is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a smoke sampling probe to solve the technical problem that the filter of the probe can not be normally used easily because the probe in the prior art can be eroded by smoke in the working process; an object of the utility model is to provide a smoke detection device to the probe among the solution prior art can receive the erosion of flue gas and cause the filter of probe can not normal use technical problem easily in the course of the work.
In order to achieve the above object, the utility model discloses flue gas sampling probe's technical scheme is:
the flue gas sampling probe includes: a sampling probe extending in the front-rear direction; the filter is arranged on the sampling probe tube; a protection plate disposed upstream of the filter to prevent the smoke from eroding the filter; protection plate fixed connection is on the sample probe tube, perhaps sample probe tube fixedly connected with mount pad, and protection plate fixed connection is on the mount pad.
The beneficial effects are that: through set up the guard plate that is in the filter upper reaches on the mount pad of sampling probe or sampling probe, when sampling in smoke sampling probe stretches into the flue, make the flue gas directly strike on the guard plate, avoid the flue gas to strike the filter, protected the filter and avoided the erosion, improved smoke sampling probe's life.
Further, the protection plate is a V-shaped protection plate, and the opening of the V-shaped protection plate faces the filter. The protection plate is designed into a V shape, so that the impact force of the smoke can be dispersed, and the service life of the protection plate is prolonged.
Furthermore, a rounding structure is arranged at the bending position of one side, back to the filter, of the V-shaped protection plate. The impact force at the bending position can be better dispersed to two sides, and the service life of the protection plate is further prolonged.
Further, the filter sets up in the front end of sampling probe tube, for the tubular structure that extends along the fore-and-aft direction, and the front end of sampling probe tube is equipped with the sample connection with the filter intercommunication, the guard plate is in the side of meeting the cigarette of filter and with filter interval arrangement. The filter of tubular structure and guard plate and filter interval arrange, the flue gas in the absorption flue that all can be better improves detection efficiency.
Further, the mount pad sets up the rear end at the sampling probe to be used for connecting flue gas analyzer, the rear end and the mount pad fixed connection of guard plate are in order to realize the interval arrangement of guard plate and filter. The rear end of the protection plate is fixed by the aid of the mounting seat of the sampling probe tube, so that an additional protection plate fixing structure arranged on the sampling probe tube is omitted, and the structure is simplified. Meanwhile, the protection plate protects the sampling probe tube.
Further, the front end of the protection plate is provided with a fixing plate extending along the radial direction of the filter, and the front end of the filter is fixedly assembled on the fixing plate. Through all fixing the front end and the rear end of guard plate, guarantee the fixed stability of guard plate.
Further, the sampling probe tube is fixedly connected with a mounting seat, and the protection plate is fixedly connected to the mounting seat along the circumferential position of the sampling probe tube. The protection direction can be adjusted according to the flue gas direction to the messenger guard plate, guarantees that the guard plate can effectual protection filter.
Further, the mount pad is mounting flange, is equipped with the flange connecting hole on the mounting flange, the rear end of guard plate is equipped with the fixed block, is equipped with the fixed block connecting hole that is used for with the flange connecting hole alignment on the fixed block to with fastener cooperation with fixed block fixed connection on mounting flange, the quantity of flange connecting hole is greater than the quantity of fixed block connecting hole, so that the fixed block is along mounting flange's circumference position adjustable fixed connection on mounting flange, and then makes guard plate position adjustable fixed connection on mounting flange. The guard plate passes through the fixed block connecting hole of fixed block and aligns the flange connecting hole of different positions on the mounting flange to the position that realizes the guard plate is adjustable, and it is comparatively simple and convenient to adjust.
Further, the central axis that the skew mounting flange of pipe is visited in the sample sets up, the front end of guard plate is equipped with the fixed plate along the radial extension of filter, is equipped with the fixed orifices of fixed filter front end on the fixed plate, and the fixed orifices is provided with two at least, wherein has two fixed orificess to satisfy: one is used for being fixed with the front end of the filter before the position of the protection plate is adjusted, and the other is fixed with the front end of the filter after the position of the protection plate is adjusted. The sampling probe is arranged to deviate from the central axis of the mounting flange, a gas return channel can be reserved on the mounting flange, and the gas return channel is arranged on the mounting flange, so that the flue gas analyzed by the flue gas analyzer is discharged into a flue again, and the atmosphere pollution is avoided.
In order to achieve the above object, the utility model discloses smoke detection device's technical scheme is:
flue gas detection device include flue gas sampling probe and with flue gas sampling probe fixed connection's flue gas analyzer, flue gas sampling probe includes: a sampling probe extending in the front-rear direction; the filter is arranged on the sampling probe tube; a protection plate disposed upstream of the filter to prevent the smoke from eroding the filter; protection plate fixed connection is on the sample probe tube, perhaps sample probe tube fixedly connected with mount pad, and protection plate fixed connection is on the mount pad.
The beneficial effects are that: through set up the guard plate that is in the filter upper reaches on the mount pad of sampling probe or sampling probe, when sampling in smoke sampling probe stretches into the flue, make the flue gas directly strike on the guard plate, avoid the flue gas to strike the filter, protected the filter and avoided the erosion, improved smoke sampling probe's life.
Further, the protection plate is a V-shaped protection plate, and the opening of the V-shaped protection plate faces the filter. The protection plate is designed into a V shape, so that the impact force of the smoke can be dispersed, and the service life of the protection plate is prolonged.
Furthermore, a rounding structure is arranged at the bending position of one side, back to the filter, of the V-shaped protection plate. The impact force at the bending position can be better dispersed to two sides, and the service life of the protection plate is further prolonged.
Further, the filter sets up in the front end of sampling probe tube, for the tubular structure that extends along the fore-and-aft direction, and the front end of sampling probe tube is equipped with the sample connection with the filter intercommunication, the guard plate is in the side of meeting the cigarette of filter and with filter interval arrangement. The filter of tubular structure and guard plate and filter interval arrange, the flue gas in the absorption flue that all can be better improves detection efficiency.
Further, the mount pad sets up the rear end at the sampling probe to be used for connecting flue gas analyzer, the rear end and the mount pad fixed connection of guard plate are in order to realize the interval arrangement of guard plate and filter. The rear end of the protection plate is fixed by the aid of the mounting seat of the sampling probe tube, so that an additional protection plate fixing structure arranged on the sampling probe tube is omitted, and the structure is simplified. Meanwhile, the protection plate protects the sampling probe tube.
Further, the front end of the protection plate is provided with a fixing plate extending along the radial direction of the filter, and the front end of the filter is fixedly assembled on the fixing plate. Through all fixing the front end and the rear end of guard plate, guarantee the fixed stability of guard plate.
Further, the sampling probe tube is fixedly connected with a mounting seat, and the protection plate is fixedly connected to the mounting seat along the circumferential position of the sampling probe tube. The protection direction can be adjusted according to the flue gas direction to the messenger guard plate, guarantees that the guard plate can effectual protection filter.
Further, the mount pad is mounting flange, is equipped with the flange connecting hole on the mounting flange, the rear end of guard plate is equipped with the fixed block, is equipped with the fixed block connecting hole that is used for with the flange connecting hole alignment on the fixed block to with fastener cooperation with fixed block fixed connection on mounting flange, the quantity of flange connecting hole is greater than the quantity of fixed block connecting hole, so that the fixed block is along mounting flange's circumference position adjustable fixed connection on mounting flange, and then makes guard plate position adjustable fixed connection on mounting flange. The guard plate passes through the fixed block connecting hole of fixed block and aligns the flange connecting hole of different positions on the mounting flange to the position that realizes the guard plate is adjustable, and it is comparatively simple and convenient to adjust.
Further, the central axis that the skew mounting flange of pipe is visited in the sample sets up, the front end of guard plate is equipped with the fixed plate along the radial extension of filter, is equipped with the fixed orifices of fixed filter front end on the fixed plate, and the fixed orifices is provided with two at least, wherein has two fixed orificess to satisfy: one is used for being fixed with the front end of the filter before the position of the protection plate is adjusted, and the other is fixed with the front end of the filter after the position of the protection plate is adjusted. The sampling probe is arranged to deviate from the central axis of the mounting flange, a gas return channel can be reserved on the mounting flange, and the gas return channel is arranged on the mounting flange, so that the flue gas analyzed by the flue gas analyzer is discharged into a flue again, and the atmosphere pollution is avoided.
Drawings
FIG. 1 is a schematic structural view of a smoke sampling probe of the present invention;
in the figure: 1-sampling probe tube; 2-a filter; 3, fixing a plate; 4-fixing the bolt; 5-protection plate; 6-mounting a flange; 7-fixing blocks; 8-a flat groove; 9-fixing hole.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a flue gas sampling probe's concrete embodiment, as shown in FIG. 1, flue gas sampling probe includes that the sample probes 1, filter 2 and guard plate 5, and the sample probes 1 extends along the fore-and-aft direction, and filter 2 is the tubular structure that extends along the fore-and-aft direction to the setting is at the front end of sample probes 1, and the front end of sample probes 1 is equipped with the sample connection that communicates with filter 2. The flue gas in the flue is sucked into the sampling probe tube 1 through the filter 2, the filter 2 and the sampling probe tube 1 are both made of high-temperature-resistant materials, and the filter 2 can prevent larger dust particles in the flue gas from entering the sampling probe tube 1; the rear end of the sampling probe 1 is connected with a flue gas analyzer to detect the components in the flue gas. It should be noted that the filter is a mature product in the prior art. In other embodiments, the filter may be disposed in the middle of the sampling probe, specifically, a plurality of air inlets are disposed on the wall of the sampling probe, and the filter is disposed in the air inlets.
In this embodiment, the protection plate 5 is a V-shaped protection plate, and an opening of the V-shaped protection plate faces the sampling probe 101. Design for the V type with guard plate 5, can disperse the impact force of flue gas, improve guard plate 5's life. It should be noted that the protection plate 5 is made of a high temperature resistant material and is wear resistant, but can be replaced when worn to a certain extent. In other embodiments, the guard plate may be an arc plate or a straight plate.
The bending position of the protection plate 5, which is back to one side of the filter 2, is provided with a fillet structure, so that impact force at the bending position can be well dispersed to two sides, and the service life of the protection plate 5 is further prolonged. In other embodiments, a rounded corner structure may not be provided at the bending position of the side of the protection plate facing away from the filter, and the corner of the protection plate is easily eroded by the smoke.
In this embodiment, the protection plate 5 and the filter 2 are arranged at intervals, so that the periphery of the filter 2 can absorb the flue gas in the flue, and the absorption efficiency is ensured. In other embodiments, the protective plate is disposed adjacent to the filter, and the protective plate can be directly secured to the sampling probe.
The rear end of the sampling probe tube 1 is provided with a mounting seat to the rear end of the protection plate 5 is fixedly assembled on the mounting seat by fixedly connecting the sampling probe tube 1 with a flue gas analyzer, so that the protection plate 5 and the filter 2 are arranged at intervals, the mounting seat of the sampling probe tube 1 is utilized at the rear end of the protection plate 5 to be fixed, the additional arrangement of the protection plate fixing structure on the sampling probe tube 1 is omitted, and the structure is simplified. In other embodiments, a protection plate fixing structure may be added to the sampling probe tube, and the rear end of the protection plate is fixed to the sampling probe tube through the protection plate fixing structure, so as to realize the spaced arrangement of the protection plate and the filter.
Specifically, the mounting seat is a mounting flange 6, a plurality of flange connecting holes are formed in the mounting flange 6 along the circumferential direction of the mounting flange, a fixing block 7 is arranged at the rear end of the protection plate 5, fixing block connecting holes aligned with the flange connecting holes are formed in the fixing block 7, the fixing block connecting holes and the flange connecting holes are matched with fasteners to fixedly connect the fixing block 7 to the mounting flange 6, the hole pitch of the flange connecting holes is the same as that of the fixing block connecting holes, the number of the flange connecting holes is larger than that of the fixing block connecting holes, when the mounting flange is used, the fixing block connecting holes are aligned with the flange connecting holes in different positions on the mounting flange 6 through the fixing block connecting holes according to actual mounting requirements, the fixing block 7 is fixedly connected to the mounting flange 6 along the circumferential direction of the mounting flange 6 in an adjustable mode, the, the protection plate 5 is ensured to effectively protect the filter 2. It should be noted that the fixing block 7 is an arc-shaped fixing block adapted to the mounting flange 6.
The front end of guard plate 5 is equipped with along the fixed plate 3 of the radial extension of filter 2, and the fixed assembly of front end of filter 2 is on fixed plate 3, through the stationary phase cooperation with the front end of guard plate 5, guarantees the fixed stability of guard plate 5. Specifically, the sampling probe tube 1 is arranged by deviating from the central axis of the mounting flange 6 so as to reserve a gas return channel on the mounting flange 6, and the gas return channel is arranged on the mounting flange 6, so that the flue gas analyzed by the flue gas analyzer is discharged into the flue again, and the atmosphere pollution is avoided. Be equipped with fixed orifices 9 on the fixed plate 3, the front end of filter 2 is equipped with along its axial extension's screw hole, and filter 2 is fixed on fixed plate 3 through wearing the fixed bolt 4 of dress in fixed orifices 9 and screw hole cooperation, and the front end of fixing the filter on the fixed plate through fastener and screw hole cooperation, and not only stability is high, but also the dismouting of being convenient for, and wherein, fixed bolt 4 constitutes threaded fastener. In other embodiments, a clamping groove matched with the section of the rear end of the protection plate can be arranged on the mounting seat, the rear end of the protection plate is clamped in the clamping groove, the front end of the protection plate is fixed at the front end of the filter in a matched mode through a fixing plate and a fixing bolt, the position of the protection plate can be adjusted at the moment, and then the front end of the protection plate is fixed at the front end of the filter in a matched mode through the fixing bolt and the fixing plate, so that the position of the protection plate is adjustable; or a clamping groove matched with the section of the front end of the filter is formed in the fixing plate, the front end of the filter is clamped in the clamping groove of the fixing plate, and the rear end of the protection plate is fixedly connected to the mounting flange through the fixing block.
In this embodiment, the quantity of fixed orifices 9 is three, and three fixed orifices 9 are on same straight line, and wherein two fixed orifices 9 communicate each other to when the different positions of guard plate 5 fixed to mounting flange 6 through fixed block 7, can both fix the front end of guard plate 5 in the front end of filter 2 through the fixed orifices 9 on fixed plate 3 and the cooperation of fixing bolt 4, it should be said that, every fixed orifices can correspond the fixed position of a plurality of fixed blocks 7 and mounting flange. In other embodiments, the fixing plate may be provided with a long hole extending in the radial direction of the filter, and when the protection plate is fixed to different positions of the mounting flange through the fixing block 7, different positions of the long hole in the fixing plate may be selected to fix the fixing plate to the front end of the filter.
It should be noted that the outer side wall of the sampling probe tube 1 is milled with a flat groove 8 to facilitate gripping by a wrench for mounting it to the mounting flange 6.
During the use, pass through mounting flange 6 fixed connection with flue gas sampling probe on flue gas analysis appearance, then send into flue gas sampling probe in to make guard plate 5 orientation meet the cigarette side, make the flue gas directly strike on guard plate 5, avoid flue gas impact filter 2, protected filter 2 and avoided the erosion, improved flue gas sampling probe's life.
The utility model discloses a flue gas detection device's specific embodiment, this flue gas detection device include flue gas sampling probe and with flue gas sampling probe fixed connection's flue gas analyzer, flue gas sampling probe in this embodiment and above-mentioned specific embodiment flue gas sampling probe's structure the same, no longer describe here.
Claims (10)
1. Flue gas sampling probe, its characterized in that includes:
a sampling probe extending in the front-rear direction;
the filter is arranged on the sampling probe tube;
a protection plate disposed upstream of the filter to prevent the smoke from eroding the filter;
protection plate fixed connection is on the sample probe tube, perhaps sample probe tube fixedly connected with mount pad, and protection plate fixed connection is on the mount pad.
2. The smoke sampling probe of claim 1, wherein said shield is a V-shaped shield, the opening of the V-shaped shield facing the filter.
3. The smoke sampling probe of claim 2, wherein the V-shaped protection plate is provided with a rounded corner structure at the bending position of the side, facing away from the filter, of the V-shaped protection plate.
4. The smoke sampling probe according to any one of claims 1 to 3, wherein the filter is arranged at the front end of the sampling probe tube and is a cylindrical structure extending along the front-back direction, the front end of the sampling probe tube is provided with a sampling port communicated with the filter, and the protection plate is arranged on the smoke facing side of the filter and is spaced from the filter.
5. The smoke sampling probe of claim 4, wherein the mounting seat is arranged at the rear end of the sampling probe tube for connecting a smoke analyzer, and the rear end of the protection plate is fixedly connected with the mounting seat to realize the spaced arrangement of the protection plate and the filter.
6. The smoke sampling probe of claim 5, wherein the front end of the protection plate is provided with a fixing plate extending in a radial direction of the filter, and the front end of the filter is fixedly assembled on the fixing plate.
7. The smoke sampling probe according to any one of claims 1-3, wherein the sampling probe is fixedly connected with a mounting seat, and the protection plate is fixedly connected on the mounting seat in a position adjustable along the circumferential direction of the sampling probe.
8. The smoke sampling probe of claim 7, wherein the mount pad is mounting flange, and the mounting flange is provided with flange connecting holes, the rear end of the protection plate is provided with a fixed block, and the fixed block is provided with fixed block connecting holes aligned with the flange connecting holes to be matched with fasteners to fixedly connect the fixed block to the mounting flange, and the number of the flange connecting holes is greater than that of the fixed block connecting holes, so that the fixed block is fixedly connected to the mounting flange along the circumferential position of the mounting flange, and further the fixed connection of the protection plate with adjustable position is fixed to the mounting flange.
9. The smoke sampling probe of claim 8, wherein the sampling probe is offset from the central axis of the mounting flange, the front end of the protection plate is provided with a fixing plate extending along the radial direction of the filter, the fixing plate is provided with fixing holes for fixing the front end of the filter, the fixing holes are provided with at least two, and two of the fixing holes are satisfied: one is used for being fixed with the front end of the filter before the position of the protection plate is adjusted, and the other is fixed with the front end of the filter after the position of the protection plate is adjusted.
10. The smoke detection device comprises a smoke sampling probe and a smoke analyzer fixedly connected with the smoke sampling probe, and is characterized in that the smoke sampling probe is the smoke sampling probe according to any one of claims 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019212041265 | 2019-07-29 | ||
| CN201921204126 | 2019-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210571613U true CN210571613U (en) | 2020-05-19 |
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ID=70645842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921516682.6U Active CN210571613U (en) | 2019-07-29 | 2019-09-12 | Flue gas sampling probe and flue gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210571613U (en) |
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2019
- 2019-09-12 CN CN201921516682.6U patent/CN210571613U/en active Active
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