CN217687573U - Novel anti-blocking sound wave guide pipe for acoustic temperature measurement of coal-fired boiler furnace - Google Patents
Novel anti-blocking sound wave guide pipe for acoustic temperature measurement of coal-fired boiler furnace Download PDFInfo
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- CN217687573U CN217687573U CN202221430325.XU CN202221430325U CN217687573U CN 217687573 U CN217687573 U CN 217687573U CN 202221430325 U CN202221430325 U CN 202221430325U CN 217687573 U CN217687573 U CN 217687573U
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Abstract
The utility model discloses a novel prevent stifled sound wave pipe for coal fired boiler furnace acoustics temperature measurement, including the sound wave pipe cavity, establish the inside cavity in the isolated wind channel of breeze volume malleation on it, the whirl sweeps the isolated wind channel entry of wind channel and breeze volume malleation, the sound wave pipe cavity is inside to sweep the wind channel with the whirl and communicates with each other, the isolated wind channel entry of breeze volume malleation communicates with each other with the isolated inside cavity in wind channel of breeze volume malleation, set up the isolated wind channel air outlet of breeze volume malleation on the isolated inside cavity in wind channel of breeze volume malleation, the isolated wind channel air outlet of breeze volume malleation is linked together with the inside cavity of sound wave pipe of locating the sound wave pipe cavity inside. The utility model discloses in, sweep the wind channel through the whirl and can take out the inside wall dust of sound waveguide better, have the rigidity air curtain in the sound waveguide, the air consumption is less, and inside the dust fell into the sound waveguide in preventing the flue gas, effectively solved deposition and survey hole and block up the scheduling problem, can prevent that acoustics temperature measurement equipment from damaging, realize its long period steady operation.
Description
Technical Field
The utility model belongs to the technical field of the acoustics temperature measurement, concretely relates to a novel prevent stifled sound wave pipe for coal fired boiler furnace acoustics temperature measurement.
Background
With the development of acoustic temperature measurement technology, part of coal-fired boilers currently use acoustic temperature measurement equipment to measure the temperature of high-temperature flue gas in a hearth.
At present, primary elements of the acoustic temperature measuring equipment are a sound production element and a sound receiving element, and in order to conduct sound wave signals and isolate high-temperature smoke from the primary elements, a sound wave guide pipe is required to be used as transition connection equipment. The temperature measuring tube seat is filled with casting material through the water wall, the tube is welded and fixed on the water wall, the front end of the sound wave guide tube is fixed on the temperature measuring tube seat through flange connection, and the rear end of the sound wave guide tube is fixed with the primary element through flange connection. Conventional acoustic waveguides are generally cone-shaped and have a body that is perforated for compressed air purging.
Because coal fired boiler fuel ash content is higher, and the flue gas ash content is higher in the furnace, the dust can lead to the component to damage if getting into in the measuring element once, and the long-term deposition of measuring hole still leads to acoustic wave pipe and the inside jam of temperature tube seat easily, and the structure of traditional acoustic wave pipe can not effectively prevent the component deposition, still can lead to high temperature flue gas to get into in the acoustic wave pipe when local micro-positive pressure appears in the flue gas in the stove, damages a component.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that exists among the prior art, the utility model aims to provide a novel prevent stifled sound wave pipe for coal fired boiler furnace acoustics temperature measurement.
In order to realize the above purpose, reach above-mentioned technological effect, the utility model discloses a technical scheme be:
the utility model provides a novel prevent stifled sound wave pipe for coal fired boiler furnace acoustics temperature measurement, the sound wave pipe includes the sound wave pipe cavity, acoustics temperature element is connected to sound wave pipe cavity one end, the sound wave pipe cavity other end sets up the isolated inside cavity in the wind channel of breeze volume malleation, a plurality of whirl sweeps the isolated wind channel entry of wind channel and a plurality of breeze volume malleation, the sound wave pipe cavity is inside to sweep the wind channel with the whirl and is linked together, the isolated wind channel entry of breeze volume malleation is linked together with the isolated inside cavity in the wind channel of breeze volume malleation, set up the isolated wind channel air outlet of breeze volume malleation on the isolated inside cavity in wind channel of breeze volume malleation, the isolated wind channel air outlet of breeze volume malleation is linked together with the inside cavity of sound wave pipe that sets up in the sound wave pipe cavity of coal fired boiler furnace cavity inside.
Furthermore, the whole body of the sound wave guide tube cavity is of a 90-degree circular arc elbow structure.
Furthermore, a plurality of rotational flow blowing air channels are arranged at intervals in the circumferential direction on the horizontal section at the tail end of the circular arc-shaped elbow on the cavity of the acoustic waveguide, one end of each rotational flow blowing air channel is obliquely inserted into the cavity of the acoustic waveguide, and the other end of each rotational flow blowing air channel extends out of the cavity of the acoustic waveguide.
Furthermore, a steel pipe is concentrically sleeved outside the tail end of the horizontal section of the acoustic temperature measuring element far away from the acoustic temperature measuring element in the cavity of the acoustic waveguide pipe, an annular space between the steel pipe and the cavity of the acoustic waveguide pipe is a micro-air positive-pressure isolated air channel inner cavity, and a slit-type micro-air positive-pressure isolated air channel air outlet is formed in the tail end of the micro-air positive-pressure isolated air channel inner cavity.
Furthermore, one end of the acoustic duct cavity, which is far away from the acoustic temperature measuring element, is obliquely provided with a plurality of micro-air positive pressure isolation air duct inlets, one end of each micro-air positive pressure isolation air duct inlet extends out of the acoustic duct cavity, and the other end, opposite to the micro-air positive pressure isolation air duct inlet, of each micro-air positive pressure isolation air duct inlet is inserted into the inner cavity of the micro-air positive pressure isolation air duct.
Furthermore, one end of the cavity of the sound wave guide pipe is provided with an element connecting flange used for connecting and fixing the acoustic temperature measuring element, the other end, opposite to the cavity of the sound wave guide pipe, is provided with a pipe seat connecting flange used for integrally connecting and fixing the sound wave guide pipe on a temperature measuring pipe seat on a water-cooled wall, and the acoustic temperature measuring element is vertically installed downwards.
Furthermore, the micro-air positive pressure isolation air duct is divided into a plurality of independent areas by a plurality of reinforcing ribs which are parallel to the cavity of the acoustic waveguide tube.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a novel prevent stifled sound wave pipe for coal fired boiler furnace acoustics temperature measurement, be arranged in coal fired boiler furnace acoustics temperature measurement, the vertical installation of sound wave pipe cavity end component, the dust receives inside the difficult entering component of dead weight influence, sweep the wind channel through setting up the whirl, at the inside big disturbance that produces of sound wave pipe cavity, can bring out sound wave pipe inside wall dust better, and simultaneously, a small amount of compressed air gets into the inside cavity of the isolated wind channel of annular breeze volume malleation through the isolated wind channel entry of breeze volume malleation of sound wave pipe cavity both sides, again via the isolated wind channel air outlet of breeze volume malleation entering sound wave pipe inside cavity, form the air curtain at the inside head of sound wave pipe, the air curtain is less, the air curtain rigidity is higher, keep the interior pressure of sound wave pipe, prevent that the dust from falling into inside the pipe in the flue gas, effectively solve current acoustics temperature measurement component deposition and survey hole blocking scheduling problem, can prevent acoustics temperature measurement equipment from damaging, realize its long period steady operation.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a sectional view of the internal structure of the present invention;
fig. 3 is a cross-sectional view of the present invention in fig. 2; wherein, fig.base:Sub>A isbase:Sub>A cross-sectional view ofbase:Sub>A-base:Sub>A in fig. 2 according to the present invention; fig. B is a cross-sectional view taken along line B-B of fig. 2 in accordance with the present invention; fig. C is a cross-sectional view of fig. 2, taken along line C-C in accordance with the present invention;
in the figure: the method comprises the following steps of 1-element connecting flange, 2-acoustic duct cavity, 3-micro air quantity positive pressure isolation air duct inlet, 4-cyclone purging air duct, 5-tube seat connecting flange, 6-micro air quantity positive pressure isolation air duct air outlet, 7-micro air quantity positive pressure isolation air duct inner cavity and 8-acoustic duct inner cavity.
Detailed Description
The present invention is described in detail below to enable the advantages and features of the present invention to be more easily understood by those skilled in the art, thereby making more clear and definite definitions of the scope of the present invention.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in figures 1-3, a novel prevent stifled sound wave pipe for coal fired boiler furnace acoustics temperature measurement, including component flange 1, sound wave pipe cavity 2, the whirl sweeps wind channel 4 and tube socket flange 5 etc, wherein, 2 one end in sound wave pipe cavity sets up component flange 1, component flange 1 is used for connecting fixed acoustics temperature measurement primary member (sound producing element or receipts sound component), the other end that sound wave pipe cavity 2 is relative sets up tube socket flange 5, tube socket flange 5 is used for fixing sound wave pipe monolithic coupling on the temperature tube socket on the water-cooling wall, sound wave pipe cavity 2 wholly is 90 convex elbow structures, acoustics temperature measurement primary member is vertical to be installed down, dust receives the dead weight influence in the sound wave pipe cavity 2 and is difficult for getting into acoustics temperature measurement primary member inside.
As a specific implementation manner, a plurality of rotational flow blowing air channels 4 are arranged at intervals on the horizontal section at the tail end of the circular arc-shaped elbow on the sound wave guide tube cavity 2, preferably, four rotational flow blowing air channels 4 are uniformly arranged tangentially along the circumferential direction, 4 air inlets are provided in total, one end of each rotational flow blowing air channel 4 is obliquely inserted into the sound wave guide tube cavity 2, the other end of each rotational flow blowing air channel 4 extends out of the sound wave guide tube cavity 2 and is used for connecting a rotational flow blowing air pipeline, compressed air enters the sound wave guide tube cavity 2 tangentially along the circumferential direction from the rotational flow blowing air channels 4, and blowing air forms rotational flow blowing air through the rotational flow blowing air channels 4.
A steel pipe 10 is established to the terminal outside concentric cover of right-hand member horizontal segment that acoustic duct cavity 2 is close to tube socket flange 5, the annular space between this steel pipe 10 and the acoustic duct cavity 2 is the isolated wind channel inside cavity 7 of breeze volume malleation promptly, isolated wind channel inside cavity 7 of breeze volume malleation is separated for a plurality of independent region by a plurality of strengthening rib 9 that is on a parallel with acoustic duct cavity 2 and sets up, strengthening rib 9 is used for maintaining the isolated wind channel inside cavity 7 inner spaces of breeze volume malleation, prevent to warp.
A plurality of micro-air quantity positive-pressure isolation air duct inlets 3 are obliquely arranged on an acoustic duct cavity 2 and a steel pipe 10, slit-type micro-air quantity positive-pressure isolation air duct air outlets 6 are formed at the tail ends of internal cavities 7 of micro-air quantity positive-pressure isolation air ducts, internal cavities 8 of acoustic ducts are formed inside the acoustic duct cavity 2, one ends of the micro-air quantity positive-pressure isolation air duct inlets 3 extend out of the acoustic duct cavity 2 and the steel pipe 10, the other ends, opposite to the micro-air quantity positive-pressure isolation air duct inlets 3, are communicated with the internal cavities 7 of the micro-air quantity positive-pressure isolation air ducts and then are communicated with the internal cavities 8 of the acoustic ducts through the micro-air quantity positive-pressure isolation air duct air outlets 6, compressed air enters the internal cavities 7 of the micro-air quantity positive-pressure isolation air ducts through the micro-air quantity positive-pressure isolation air duct air outlets 6 and then enters the acoustic duct cavities 8 of the acoustic ducts, rigid air curtains are formed inside the acoustic ducts, emitted annular air flows are conical in the positions, close to flange interface end faces, the acoustic duct air outlets are high in the integral rigidity, the air outlets, the micro-pressure heads of the acoustic ducts can be kept, and dust in a hearth can be prevented from entering the interior of the acoustic ducts.
As a more specific implementation manner, two micro-air quantity positive pressure isolation air duct inlets 3 are arranged, the two micro-air quantity positive pressure isolation air duct inlets 3 are obliquely arranged on two sides of the acoustic wave duct cavity 2 respectively, and an included angle between the micro-air quantity positive pressure isolation air duct inlets 3 and the acoustic wave duct cavity 2 is flexibly designed according to actual requirements.
As a specific implementation mode, the interface end face of the air outlet 6 of the breeze positive-pressure isolation air duct and the tube seat connecting flange 5 forms an included angle of about 20 degrees forward, so that external smoke is pushed outwards, dust is further prevented from entering, meanwhile, the air outlet area is small, and air consumption is low.
The utility model discloses the part or the structure that do not specifically describe adopt prior art or current product can, do not do here and describe repeatedly.
The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a novel prevent stifled sound wave pipe for coal fired boiler furnace acoustics temperature measurement, a serial communication port, the sound wave pipe includes the sound wave pipe cavity, acoustics temperature measuring element is connected to sound wave pipe cavity one end, and the sound wave pipe cavity other end sets up the isolated inside cavity in wind channel of breeze volume malleation, and a plurality of whirl sweeps the isolated wind channel entry of wind channel and a plurality of breeze volume malleation, and the sound wave pipe cavity is inside to sweep the wind channel with the whirl and is linked together, and the isolated inside cavity in wind channel of breeze volume malleation is linked together with the isolated wind channel entry of breeze volume malleation, sets up the isolated wind channel air outlet of breeze volume malleation on the isolated inside cavity in wind channel of breeze volume malleation, and the isolated wind channel air outlet of breeze volume malleation is linked together with setting up in the inside cavity of sound wave pipe cavity inside.
2. The novel anti-blocking sound wave guide pipe for the acoustic temperature measurement of the coal-fired boiler furnace according to claim 1, wherein the whole body of the sound wave guide pipe cavity is of a 90-degree circular arc elbow structure.
3. The novel anti-blocking acoustic waveguide for coal-fired boiler furnace acoustic temperature measurement according to claim 2, characterized in that a plurality of cyclone purging air channels are arranged on the acoustic waveguide cavity at intervals along the circumferential direction at the horizontal section at the end of the circular arc-shaped elbow, one end of each cyclone purging air channel is obliquely inserted into the acoustic waveguide cavity, and the other end of each cyclone purging air channel extends out of the acoustic waveguide cavity.
4. The novel anti-blocking sound wave guide pipe for the acoustic temperature measurement of the hearth of the coal-fired boiler according to claim 1, wherein a steel pipe is concentrically sleeved outside the tail end of the horizontal section of the sound wave guide pipe cavity, which is far away from the acoustic temperature measurement element, an annular space between the steel pipe and the sound wave guide pipe cavity is a micro-air positive pressure isolation air duct inner cavity, and a slit-type micro-air positive pressure isolation air duct air outlet is formed in the tail end of the micro-air positive pressure isolation air duct inner cavity.
5. The novel anti-blocking acoustic waveguide for the acoustic temperature measurement of the furnace of the coal-fired boiler according to claim 1, wherein one end of the acoustic waveguide cavity, which is far away from the acoustic temperature measurement element, is obliquely provided with a plurality of micro-air positive pressure isolated air duct inlets, one end of each micro-air positive pressure isolated air duct inlet extends out of the acoustic waveguide cavity, and the other end, which is opposite to the micro-air positive pressure isolated air duct inlet, is inserted into the internal cavity of the micro-air positive pressure isolated air duct.
6. The novel anti-blocking acoustic waveguide for the acoustic temperature measurement of the coal-fired boiler furnace according to claim 1, wherein one end of the acoustic waveguide cavity is provided with an element connecting flange for connecting and fixing an acoustic temperature measuring element, the other end of the acoustic waveguide cavity opposite to the acoustic waveguide cavity is provided with a tube seat connecting flange for integrally connecting and fixing the acoustic waveguide on a temperature measuring tube seat on a water-cooled wall, and the acoustic temperature measuring element is installed vertically downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221430325.XU CN217687573U (en) | 2022-06-09 | 2022-06-09 | Novel anti-blocking sound wave guide pipe for acoustic temperature measurement of coal-fired boiler furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221430325.XU CN217687573U (en) | 2022-06-09 | 2022-06-09 | Novel anti-blocking sound wave guide pipe for acoustic temperature measurement of coal-fired boiler furnace |
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| Publication Number | Publication Date |
|---|---|
| CN217687573U true CN217687573U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221430325.XU Active CN217687573U (en) | 2022-06-09 | 2022-06-09 | Novel anti-blocking sound wave guide pipe for acoustic temperature measurement of coal-fired boiler furnace |
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| Country | Link |
|---|---|
| CN (1) | CN217687573U (en) |
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2022
- 2022-06-09 CN CN202221430325.XU patent/CN217687573U/en active Active
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