CN212301020U - Boiler afterbody flue gas sampling device - Google Patents
Boiler afterbody flue gas sampling device Download PDFInfo
- Publication number
- CN212301020U CN212301020U CN202020597001.XU CN202020597001U CN212301020U CN 212301020 U CN212301020 U CN 212301020U CN 202020597001 U CN202020597001 U CN 202020597001U CN 212301020 U CN212301020 U CN 212301020U
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- Prior art keywords
- pipe
- flue gas
- section
- responsible
- sampling
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- 238000005070 sampling Methods 0.000 title claims abstract description 55
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000003546 flue gas Substances 0.000 title claims abstract description 44
- 239000007789 gas Substances 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 8
- 239000000779 smoke Substances 0.000 description 8
- 238000004868 gas analysis Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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Abstract
The utility model discloses a boiler afterbody flue gas sampling device, including being responsible for the section, the top of being responsible for the section is equipped with the stand-off pipe, the stand-off pipe is used for being connected with flue gas analytical equipment, the bottom of being responsible for the section is equipped with a plurality of sampling pipe, each the length of sampling pipe is all inequality, the sampling pipe is used for directly stretching into the afterbody flue, boiler afterbody flue gas sampling device still includes compressed gas pipeline, compressed gas pipeline's one end with be responsible for the pipe wall connection of section, compressed gas pipeline's the other end is used for connecting compressed air and provides the device, be responsible for in the section, be close to the one end of stand-off pipe is equipped with the absorption box, the stand-off pipe is kept away from the one end of being responsible for the section is equipped with sealed end cap, sealed. The utility model discloses can the not enough, easy stifled pipe of prior art sampling representativeness and the short problem of life.
Description
Technical Field
The utility model relates to a boiler afterbody flue gas purification technical field especially relates to a boiler afterbody flue gas sampling device.
Background
In each calculation of the boiler, each item of data in the flue gas at the tail part of the boiler is of great importance, and almost all calculations related to the boiler body have less data, so that the accuracy and the safety of acquiring the data are self-evident. The method has the advantages that various parameters of the flue gas of the tail flue of the boiler are accurately obtained, firstly, the collection of samples is needed, generally, the boiler continuously runs and needs real-time online data, and therefore the collection of the samples also needs to be uninterrupted and in the whole process.
At present, the most common method for sampling flue gas at the tail flue of a boiler of each large and medium-sized power generation enterprise is to directly connect a flue gas analysis device through a pipeline and then transmit the obtained data to a far end for operators to refer to, and the following defects exist in actual operation: firstly, the sampling is not representative enough, and the traditional sampling usually adopts a sampling pipe, and can only sample the smoke in one depth. Secondly, the pipe is easy to block, and the dust in the flue is more and is gathered in the pipeline to cause blockage. Thirdly, the service life is short, and because a large amount of water vapor and dust exist in the flue gas, the flue gas directly enters the flue gas analysis device, so that water corrosion and abrasion of internal elements of the device are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a boiler afterbody flue gas sampling device to solve the problem that prior art sampling representativeness is not enough, stifled pipe easily and life is short.
The utility model provides a boiler afterbody flue gas sampling device, is including being responsible for the section, the top of being responsible for the section is equipped with the stand-off pipe, the stand-off pipe is used for being connected with flue gas analytical equipment, the bottom of being responsible for the section is equipped with a plurality of sampling pipe, each the length of sampling pipe is all inequality, sampling pipe is used for directly stretching into the afterbody flue, boiler afterbody flue gas sampling device still includes the compressed gas pipeline, the compressed gas pipeline one end with the pipe wall connection of being responsible for the section, the other end of compressed gas pipeline is used for connecting compressed air provides the device, be responsible for in the section, be close to the one end of stand-off pipe is equipped with the absorption box, the stand-off pipe is kept away from the one end of being responsible for the section is equipped with sealed.
According to the utility model provides a boiler afterbody flue gas sampling device, when using, the flue gas at first gets into the sampling pipe, because the length of each sampling pipe differs, can realize the multiple spot sampling, make the sampling more representative, the flue gas reentrants is responsible for the section, then through absorbing the box, purify by absorbing the box, can absorb vapor and smoke and dust, prevent that it from getting into flue gas analysis device, avoid the water corrosion and the flue gas wearing and tearing of equipment, the life of extension equipment, the flue gas gets into flue gas analysis device through the outlet pipe at last. When the maintenance is needed, a sealing plug can be arranged to seal the eduction tube, so that air and impurities can be prevented from entering a boiler tail flue operated under negative pressure, and the service life is further prolonged; when the smoke and dust gathering takes place to block up in being responsible for the section, the compressed air that compressed air provided the device can be swept through compressed gas pipeline entering main inside of being responsible for, solves the easy stifled problem of sampling device, reduces measuring error. In addition, the whole device is low in price, low in cost and simple in structure, compressed air is widely distributed in large and medium-sized power plants, taking is convenient, and practicability is high.
Additionally, according to the utility model provides a boiler afterbody flue gas sampling device can also have following additional technical characterstic:
furthermore, an adsorption carbon plate is arranged inside the absorption box.
Further, one end of the compressed air pipeline is connected to the middle position of the pipe wall of the main pipe section.
Further, the eduction tube is connected with the sealing plug through threads.
Further, the number of the sampling pipes is 5.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a boiler tail flue gas sampling device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides a boiler tail flue gas sampling device, including being responsible for section 10, the top of being responsible for section 10 is equipped with stand-off pipe 20, stand-off pipe 20 is used for being connected with flue gas analysis device, the bottom of being responsible for section 10 is equipped with a plurality of sampling pipe 30, each the length of sampling pipe 30 is all inequality, sampling pipe 30 is used for directly stretching into the tail flue. Specifically, in this embodiment, the number of the sampling pipes 30 is 5, the depth of the 5 sampling pipes 30 is different, and multi-point sampling can make the sampling pipes meet the grid method sampling requirement in GB/T10184-2015 "power station boiler performance test procedure", which is very representative.
The boiler tail flue gas sampling device further comprises a compressed gas pipeline 40, one end of the compressed gas pipeline 40 is connected with the pipe wall of the main pipe section 10, the other end of the compressed gas pipeline 40 is used for being connected with a compressed air providing device, and compressed air provided by the compressed air providing device can enter the inside of the main pipe section 10 through the compressed gas pipeline 40. Specifically, one end of the compressed air pipe 40 is connected to the middle position of the pipe wall of the main pipe section 10.
An absorption box 50 is arranged at one end of the main pipe section 10 close to the eduction pipe 20 and used for absorbing water vapor and smoke dust and preventing the water vapor and the smoke dust from entering a smoke analysis device. Specifically, an adsorption carbon plate is disposed inside the absorption box 50.
One end of the eduction tube 20 far away from the main tube section 10 is provided with a sealing plug 60, and the sealing plug 60 is detachably connected with the eduction tube 20. In this embodiment, the sealing plug 60 is screwed with the outlet tube 20.
Above-mentioned boiler afterbody flue gas sampling device, when using, the flue gas at first gets into sampling pipe 30, because the length of each sampling pipe 30 differs, can realize the multiple spot sampling, make the sampling more representative, the flue gas reentrants is responsible for section 10, then through absorbing box 50, purify by absorbing box 50, can absorb vapor and smoke and dust, prevent that it from getting into flue gas analysis device, avoid the water corrosion and the flue gas wearing and tearing of equipment, the life of extension equipment, the flue gas gets into flue gas analysis device through outlet pipe 20 at last. When needing to overhaul, can install sealed end cap 60, seal the stand pipe 20, can prevent that air and debris from getting into the boiler afterbody flue of negative pressure operation, further promote life weak point. When smoke dust is gathered in the main pipe section 10 and is blocked, compressed air provided by the compressed air providing device can enter the main pipe section 10 through the compressed air pipeline 40 to be blown and swept, the problem that the sampling device is easy to block is solved, and measuring errors are reduced. In addition, the whole device is low in price, low in cost and simple in structure, compressed air is widely distributed in large and medium-sized power plants, taking is convenient, and practicability is high.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. The utility model provides a boiler afterbody flue gas sampling device, its characterized in that, is including being responsible for the section, the top of being responsible for the section is equipped with the stand-off, the stand-off is used for being connected with flue gas analytical equipment, the bottom of being responsible for the section is equipped with a plurality of sampling pipe, each the length of sampling pipe is all inequality, sampling pipe is used for directly stretching into the afterbody flue, boiler afterbody flue gas sampling device still includes compressed gas pipeline, compressed gas pipeline's one end with the pipe wall connection of being responsible for the section, compressed gas pipeline's the other end is used for connecting compressed air provides the device, be responsible for in the section, be close to the one end of stand-off is equipped with the absorption box, the stand-off is kept away from the one end of being responsible for the section is equipped with sealed end cap.
2. The boiler back flue gas sampling device of claim 1, wherein the absorption box is internally provided with an adsorption carbon plate.
3. The boiler back flue gas sampling device of claim 1, wherein one end of the compressed gas pipeline is connected to a middle position of a pipe wall of the main pipe section.
4. The boiler back flue gas sampling device of claim 1, wherein the outlet pipe is in threaded connection with the sealing plug.
5. The boiler back flue gas sampling device of claim 1, wherein the number of sampling tubes is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020597001.XU CN212301020U (en) | 2020-04-21 | 2020-04-21 | Boiler afterbody flue gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020597001.XU CN212301020U (en) | 2020-04-21 | 2020-04-21 | Boiler afterbody flue gas sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212301020U true CN212301020U (en) | 2021-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020597001.XU Active CN212301020U (en) | 2020-04-21 | 2020-04-21 | Boiler afterbody flue gas sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212301020U (en) |
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2020
- 2020-04-21 CN CN202020597001.XU patent/CN212301020U/en active Active
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