CN214584332U - High-efficient flue gas sampling tube - Google Patents

High-efficient flue gas sampling tube Download PDF

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Publication number
CN214584332U
CN214584332U CN202120597134.1U CN202120597134U CN214584332U CN 214584332 U CN214584332 U CN 214584332U CN 202120597134 U CN202120597134 U CN 202120597134U CN 214584332 U CN214584332 U CN 214584332U
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China
Prior art keywords
flue gas
gas sampling
air guide
sampling tube
inner core
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CN202120597134.1U
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Chinese (zh)
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陈正旭
程淑玥
陈玲
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Qingdao Genstar Electronic Technology Co ltd
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Qingdao Genstar Electronic Technology Co ltd
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Abstract

The utility model discloses a high-efficiency flue gas sampling tube, which comprises a collection control component, wherein the front end of the collection control component is connected with a heat-preservation air duct, and the front end of the heat-preservation air duct is provided with a sampling component; the heat preservation air duct includes protective case, air guide inner core pipe, and sampling subassembly includes probe mount pad, filters filter core, ante-chamber bush, and air guide inner core pipe is linked together with collection control assembly in one end, is linked together at the other end and ante-chamber bush, filters the filter core and is located the filter cavity that ante-chamber bush formed, and the probe mount pad is connected at the front end of filtering the filter core and is extended to outside the protective case. The utility model provides a flue gas sampling tube can effectively get rid of the smoke and dust granule that the flue gas mix with, and prevents the vapor condensation in the flue gas transmission, has both improved the measuring accuracy, still has higher efficiency.

Description

High-efficient flue gas sampling tube
Technical Field
The utility model relates to a sampling tube especially relates to a high-efficient flue gas sampling tube.
Background
The flue gas generated by industrial production boilers contains a large amount of harmful substances such as sulfur, nitre and the like. In order to monitor harmful gas emitted by industrial and mining enterprises, a flue gas sampler is adopted to sample the emitted gas, which is the most common method at present. The flue gas sampling pipe is mainly used for collecting the emissions of fixed pollution sources such as a flue. For different working conditions of the flue, the flue gas to be collected usually has higher water content, and in the transmission process, because condensation appears due to temperature reduction, errors appear in the flue gas measurement result. Therefore, condensation in the smoke transmission process is avoided, and the sampling accuracy of the instrument is improved.
In the channel, because the gas discharged by the flue gas usually contains particulate matters such as smoke dust and the like generated by boiler combustion, if the particulate matters enter the flue gas testing system, the system is damaged to a certain extent, and the detection result is inaccurate. Although adopted certain smoke and dust particulate matter filtering measure among the prior art, the selection of filtering the original paper generally is ordinary net formula filtering original paper, and filtering component is owing to the disappearance on the heating part structural design for filter screen temperature has great difference with the flue gas temperature of input, easily causes the condensation water droplet to appear on the filter screen, produces the absorption to the element of sampling gas and has influenced sampling precision.
In summary, it is urgently needed to provide a flue gas sampling tube which can accurately reflect the content of harmful substances discharged by the discharged flue gas, and has important practical significance for controlling environmental pollution.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a high-efficiency flue gas sampling tube.
In order to solve the technical problem, the utility model discloses a technical scheme is: a high-efficiency flue gas sampling tube comprises a collection control assembly, wherein the front end of the collection control assembly is connected with a heat-preservation air guide tube, and the front end of the heat-preservation air guide tube is provided with a sampling assembly;
the heat-preservation air guide pipe comprises a protective sleeve and an air guide inner core pipe, the air guide inner core pipe is arranged inside the protective sleeve, and one end of the air guide inner core pipe is communicated with the collection control assembly, and the other end of the air guide inner core pipe is connected with the sampling assembly;
the sampling assembly comprises a probe mounting seat, a filtering filter element and a front cavity bushing, the front cavity bushing is located at the inner front end of the protective sleeve and is communicated with the air guide inner core pipe, the inside of the front cavity bushing forms a filtering cavity, the filtering filter element is located in the filtering cavity, and the probe mounting seat is connected to the front end of the filtering filter element and extends out of the protective sleeve.
Furthermore, an air duct heating wire is wound outside the air duct inner core pipe.
Further, a heating lantern ring is sleeved outside the front cavity bushing.
Furthermore, the front cavity bushing is fixedly connected with a bushing snap ring, and one end of the probe mounting seat is inserted into the bushing snap ring and is screwed with the bushing snap ring through external threads.
Furthermore, the front end of the protective sleeve is fixedly provided with a screwed joint, a bush clamping ring fixedly connected with the front cavity bush is clamped into the screwed joint, and the screwed joint is screwed with a front end pressing cap through external threads.
Further, this high-efficient flue gas sampling tube is still including the pitot tube subassembly, and the one end of pitot tube subassembly is provided with the locking couple, has set firmly pitot tube suspension support on the pitot tube subassembly, and pitot tube suspension support cover is put on protective case.
Further, a handle is arranged on the shell of the collection control assembly.
The utility model discloses a high-efficiency flue gas sampling tube, which is a flue gas sampling tube for a smoke and dust flue gas detector with a high-efficiency heat tracing system, can effectively reduce flue gas condensation and dewfall, and can prevent the condensation of vapor in flue gas during flue gas transmission by utilizing a high-efficiency heating structure, thereby improving the accuracy of measurement; simultaneously, have the filtration that the structure set up rationally, can effectively get rid of the smoke and dust granule that the flue gas mingled with, improve instrument sampling precision, prolong the working life of flue gas detecting instrument.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is a schematic cross-sectional view of the sampling assembly of fig. 1.
Fig. 4 is a schematic structural view of the pitot tube of the present invention.
In the figure: 1. a heat preservation air duct; 2. a sampling assembly; 3. heating the collar; 4. an air duct; 5. a gas-guide tube heating wire; 6. a collection control assembly; 7. a handle; 101. a pitot tube suspension bracket; 102. a pitot tube assembly; 103. locking the hook; 201. a bushing snap ring; 202. bushing threads; 203. a probe mounting base; 204. a front cavity liner; 205. a filter element; 206. a front end pressing cap; 207. provided is a threaded joint.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A high-efficiency flue gas sampling tube is shown in figure 1 and comprises a collection control assembly 6, wherein the front end of the collection control assembly 6 is connected with a heat-preservation air guide tube 1, and the front end of the heat-preservation air guide tube 1 is provided with a sampling assembly 2;
the sampling assembly 2 is positioned at the foremost end and is used for collecting and filtering smoke, and as shown in fig. 2 and 3, the sampling assembly 2 comprises a probe mounting seat 203, a filtering filter element 205 and a front cavity bushing 204; the probe mounting seat 203 is connected to the front end of the filter element 205 and extends to the outside of the protective sleeve 8, the probe mounting seat 203 is used for mounting a sampling probe, and the probe mounting seat 203 is used as an inlet for sampling smoke, so that the smoke enters a filter cavity where the filter element 205 is located through the probe mounting seat 203, and the filter element 205 filters the smoke in the filter cavity.
The heat-preservation air guide tube 1 comprises a protective sleeve 8 and an air guide inner core tube 4, the air guide inner core tube 4 is arranged inside the protective sleeve 8, one end of the air guide inner core tube 4 is communicated with the collection control assembly 6, and the other end of the air guide inner core tube 4 is connected with the sampling assembly 2; therefore, the filtered smoke enters the collection control assembly 6 through the air guide inner core tube 4, and the smoke is collected by the collection control assembly 6. For the air guide inner tube core 4, the air guide inner tube core is communicated with a front cavity lining 204 of the sampling assembly 2, the front cavity lining 204 is positioned at the front end of the inner part of the protective sleeve 8, and the inner part of the front cavity lining 204 is hollow to form a filter cavity.
In order to realize the installation of the filter cartridge 205 in the front cavity bushing 204, as shown in fig. 2 and 3, the front cavity bushing 204 is fixedly connected with a bushing snap ring 201 at the front end, and as the probe mounting seat 203 is fixedly connected with the filter cartridge 205, one end of the probe mounting seat 203 is inserted into the bushing snap ring 201 and is screwed with the bushing snap ring 201 through the external bushing thread 202, so that the installation of the filter assembly of the common assembly of the probe mounting seat 203 and the filter cartridge 205 is realized. Meanwhile, in order to ensure the installation stability of the filter assembly, as shown in fig. 2 and 3, the front end of the protective sleeve 8 is fixedly provided with a screwed joint 207, a sleeve snap ring 201 fixedly connected with the front cavity sleeve 204 is clamped into the screwed joint 207, and the screwed joint 207 is screwed with a front end pressing cap 206 through external threads, so that the front cavity sleeve 204 is connected with the protective sleeve 8 through the screwing and locking of the front end pressing cap 206 and the sleeve snap ring 201. From this, set up reasonable filtration through the structure, can effectively get rid of the smoke and dust granule that the flue gas mingled with, improve the sampling precision of this flue gas sampling tube.
To collecting control assembly 6, it is prior art, adopt the flue gas sampling tube commonly used collect control accessory can, the shell of collecting control assembly 6 adopts tensile aluminium alloy to do the main part, and inside is equipped with gas collection drying bottle and temperature control system. In addition, in order to facilitate taking of the high-efficiency flue gas sampling pipe, as shown in fig. 1, a handle 7 is arranged on a shell of the collection control assembly 6, and the handle 7 is made of a non-heat-conducting material.
Meanwhile, in order to avoid condensation in the flue gas transmission process and improve the sampling accuracy of the instrument, an air guide pipe heating wire 5 is wound outside the air guide inner core pipe 4, and a heating lantern ring 3 is sleeved outside the front cavity bushing 204; the filtering cavity is heated through the heating collar on the outer wall of the front cavity, and the inner cavity of the air guide tube is heated by winding the heating wire outside the air guide tube, so that the heating effect is greatly improved, and the heating is more uniform. The heating lantern ring 3 and the air duct heating wire 5 are both in an electric heating mode, and heating control is achieved by electrically connecting an existing temperature control system.
In addition, the high-efficiency sampling tube also comprises a pitot tube component 101, and the flow rate of gas in the pipeline is measured by using a pitot tube method; one end of the pitot tube component 101 is provided with a locking hook 103, so that the pitot tube component is convenient to hang; meanwhile, a pitot tube suspension bracket 102 is fixedly arranged on the pitot tube assembly 101, and the pitot tube suspension bracket 102 is sleeved on the protective sleeve 8; the leather supporting pipe component can be conveniently installed or disassembled according to the use requirement.
From this, to the utility model discloses a high-efficient flue gas sampling tube adopts the method of the outer heater strip that winds of front chamber outer wall heating lantern ring, air duct, evenly heats, and rate of heating is fast and heating efficiency is high, has reduced the flue gas condensation, prevents that the condensation from absorbing the harmful components in waiting to survey the gas, and then improves the measurement accuracy of this flue gas sampling tube. Meanwhile, the filtering filter element is adopted to replace a net type filtering piece for filtering, so that the filtering effect is better, the particles in the gas are effectively and clearly extracted, and the adoption precision of the instrument is further improved; and, filtering component's mounting structure reasonable in design adopts the mode of screw thread mating connection, conveniently filters the dismantlement or the installation of filter core, can prolong smoke gas detection instrument's working life to filter core better in time fully ensures the filter effect.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.

Claims (7)

1. The utility model provides a high-efficient flue gas sampling tube, includes collection control assembly (6), its characterized in that: the front end of the collection control component (6) is connected with a heat-preservation air duct (1), and the front end of the heat-preservation air duct (1) is provided with a sampling component (2);
the heat-preservation air guide pipe (1) comprises a protective sleeve (8) and an air guide inner core pipe (4), the air guide inner core pipe (4) is arranged inside the protective sleeve (8), one end of the air guide inner core pipe (4) is communicated with the collection control assembly (6), and the other end of the air guide inner core pipe is connected with the sampling assembly (2);
sample subassembly (2) are including probe mount pad (203), filter core (205), preceding chamber bush (204) are located the inside front end of protective case (8), and preceding chamber bush (204) are linked together with air guide inner core pipe (4), and the inside of preceding chamber bush (204) forms the filter chamber, and filter core (205) are located the filter chamber, and probe mount pad (203) are connected and are being extended to protective case (8) outside the front end of filtering core (205).
2. The high efficiency flue gas sampling tube of claim 1, wherein: and an air duct heating wire (5) is wound outside the air duct inner core pipe (4).
3. The high efficiency flue gas sampling tube as set forth in claim 1 or 2, wherein: the front cavity lining (204) is sleeved with a heating lantern ring (3).
4. The high efficiency flue gas sampling tube of claim 3, wherein: the front cavity bushing (204) is fixedly connected with a bushing clamping ring (201), and one end of the probe mounting seat (203) is inserted into the bushing clamping ring (201) and is connected with the bushing clamping ring (201) in a screwing mode through an external bushing thread (202).
5. The high efficiency flue gas sampling tube of claim 4, wherein: the front end of the protective sleeve (8) is fixedly provided with a threaded joint (207), a bush clamping ring (201) fixedly connected with the front cavity bush (204) is clamped into the threaded joint (207), and the threaded joint (207) is screwed with a front end pressing cap (206) through external threads.
6. The high efficiency flue gas sampling tube of claim 1, wherein: the high-efficiency flue gas sampling tube further comprises a pitot tube assembly (101), one end of the pitot tube assembly (101) is provided with a locking hook (103), a pitot tube suspension bracket (102) is fixedly arranged on the pitot tube assembly (101), and the pitot tube suspension bracket (102) is sleeved on the protective sleeve (8).
7. The high efficiency flue gas sampling tube of claim 1, wherein: a handle (7) is arranged on the shell of the collection control component (6).
CN202120597134.1U 2021-03-24 2021-03-24 High-efficient flue gas sampling tube Active CN214584332U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120597134.1U CN214584332U (en) 2021-03-24 2021-03-24 High-efficient flue gas sampling tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120597134.1U CN214584332U (en) 2021-03-24 2021-03-24 High-efficient flue gas sampling tube

Publications (1)

Publication Number Publication Date
CN214584332U true CN214584332U (en) 2021-11-02

Family

ID=78321473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120597134.1U Active CN214584332U (en) 2021-03-24 2021-03-24 High-efficient flue gas sampling tube

Country Status (1)

Country Link
CN (1) CN214584332U (en)

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