CN215296832U - Efficient drying and filtering device for flue gas sampling - Google Patents
Efficient drying and filtering device for flue gas sampling Download PDFInfo
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- CN215296832U CN215296832U CN202121222325.6U CN202121222325U CN215296832U CN 215296832 U CN215296832 U CN 215296832U CN 202121222325 U CN202121222325 U CN 202121222325U CN 215296832 U CN215296832 U CN 215296832U
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Abstract
The utility model provides a flue gas sampling high-efficiency drying and filtering device which has compact structure, not only can effectively improve the drying efficiency, but also has better filtering effect, thereby improving the sampling efficiency and reducing the measurement cost; it includes the drying barrel body, be equipped with the air inlet on the drying barrel body, the gas outlet, the drying barrel body embeds there is the drier, drying barrel body top portion is equipped with the mounting groove, the hollow tube passes inside the stretching into drying barrel body behind the mounting groove, be equipped with continuous spiral baffle between hollow tube and the drying barrel body inner wall, so that drying barrel body inner chamber forms the spiral cavity that is linked together with the air inlet, be equipped with filter element group spare in the mounting groove, filter element group spare includes the filter core and adorns the filter block in the filter core, be equipped with the chamber way that link up that sets up along the length direction of filter block on the filter block, and establish the exit end that will link up the chamber way to the gas outlet, set up the filtration pore that is linked together with the chamber way that link up on the filter block surface that contacts with the filter core.
Description
Technical Field
The utility model relates to a flue gas drying and filtering technology field specifically is a flue gas sampling high efficiency drying and filtering device.
Background
Along with the stricter emission standard of coal, flue gas denitration, dust removal and desulfurization devices are generally installed in coal-fired power plants in China. If the device has problems, the device can cause the blockage of equipment and the standard exceeding of emission, great economic loss and adverse effect are brought to a power plant, and therefore regular detection and maintenance are needed.
The detection method adopted at present generally extracts smoke from a flue for sampling analysis, but the smoke contains a large amount of water vapor, which can cause blockage and corrosion of a smoke sampler or a smoke sampler and influence the measurement efficiency and the service life of equipment, so that a smoke drying and filtering device is required to be additionally arranged before the smoke enters the sampler, as shown in figure 1, the existing drying device adopts allochroic silica gel drying agent for drying, namely, allochroic silica gel 1 is put into a drying barrel body 2 for absorbing moisture, the drying barrel body 2 is divided into a left cavity and a right cavity, and an air inlet 3 and an air outlet 4 are respectively arranged; however, the existing drying device is large in size and inconvenient to carry, the large size can cause the inner cavity of the drying device to be large, the inner cavity of the drying device is only divided into a left cavity and a right cavity, the water vapor of the allochroic silicagel placed in the cavities can be insufficiently absorbed, namely the allochroic silicagel at the connecting part of the left cavity and the right cavity is saturated and turns into pink (HR is more than or equal to 50%), the other part of allochroic silicagel is blue or light blue (HR is less than 50%), at the moment, the smoke containing the water vapor can directly enter the smoke sampler from the connecting part of the saturated cavities, the smoke can preferentially enter the sampler from the air inlet through the connecting area part of the left cavity and the right cavity, so that the drying is invalid, the smoke sampler is blocked, in addition, the existing drying device is also seriously wasted by a drying agent, in addition, the allochroic silicagel can burst when meeting a large amount of water vapor, the formation of small particles causes clogging of the sampler, thereby not only causing an increase in measurement cost, but also affecting sampling efficiency.
Disclosure of Invention
In view of the above problem, the utility model provides a high-efficient drying and filtering device of flue gas sampling, its compact structure not only can effectively improve drying efficiency, and has better filter effect to improve sampling efficiency, reduce and measure the cost.
The technical scheme is as follows: the utility model provides a flue gas sampling high efficiency drying and filtering device, its includes dry staving, be equipped with air inlet, gas outlet on the dry staving, dry staving embeds there is drier, its characterized in that: the drying barrel is characterized in that a mounting groove is formed in the top end of the drying barrel, the hollow tube penetrates through the mounting groove and then extends into the drying barrel, a continuous spiral baffle is arranged between the hollow tube and the inner wall of the drying barrel, so that a spiral cavity communicated with the air inlet is formed in the inner cavity of the drying barrel, a filter element assembly is assembled in the mounting groove and comprises a filter element and a filter block arranged in the filter element, a through cavity channel arranged in the length direction of the filter block is formed in the filter block, the outlet end of the through cavity channel is arranged as the air outlet, and a filter hole communicated with the through cavity channel is formed in the surface of the filter block, and is contacted with the filter element.
Furthermore, the air inlet is arranged at the top end of the drying barrel body, a first filter screen is arranged on the air inlet, a second filter screen is arranged at the tail end of the hollow pipe, and the first filter screen and the second filter screen are both made of stainless steel materials;
the bottom of the drying barrel body is of an open structure, a groove is formed in the base, and the drying barrel body is detachably assembled in the groove in a sealing mode;
further, the base is made of PE materials, and the drying barrel body is connected to the groove in a threaded mode; the outer wall of the drying barrel body is provided with a fixed belt plate, and the fixed belt plate is provided with a hole;
furthermore, the spiral baffle is connected to the outer wall of the hollow pipe and is in interference fit with the inner wall of the drying barrel body so as to separate a plurality of independent closed flow passages at equal intervals;
further, the height difference between the closed flow channels is 25 mm; the wall thickness of the drying barrel body is 3 mm;
furthermore, the hollow tube is made of organic glass; the wall thickness of the air inlet end is 2 mm; the thickness of the spiral baffle plate and the wall thickness of the hollow tube are both 2 mm;
furthermore, the mounting groove is formed in the middle of the top end of the drying barrel body, a stop block is annularly arranged on the inner wall of the mounting groove, the filter block is cross-shaped, the filter block is in threaded connection with the inner wall of the mounting groove, the bottom surface of the horizontal part of the filter block is in contact with the stop block, the vertical part of the filter block is inserted into the filter element, the hollow tube is communicated with the inside of the mounting groove, a space is reserved between the outer wall of the filter element and the inner wall of the mounting groove, and the filter element is made of glass fiber;
further, a cylinder is arranged on the horizontal part of the filter block, and the diameter of the cylinder is 4mm, and the height of the cylinder is 3 mm; the wall thickness of the vertical part of the filter block is 2 mm;
furthermore, the filter holes are circumferentially and uniformly distributed on the surface of the filter block, which is in contact with the filter element, the aperture of each filter hole is 1mm, and the distance interval between adjacent filter holes is 1 mm.
The beneficial effects of the utility model are that, a compact structure is realized, dry staving inner chamber is the spiral cavity, the spiral cavity is arranged in to the drier, then the flue gas can rotate the decline when getting into the spiral cavity from the air inlet, can obtain fine mixture, and can make the contact time who contains the flue gas of ash and steam and drier increase, it is more abundant to make the drier absorb steam, absorption efficiency is improved, and simultaneously, filter assembly assembles on dry staving, can realize the filtration to drier piece and dust, reach the purpose of duplicate protection flue gas sample thief, thereby improve sampling efficiency, reduce measurement cost, better economic use value has.
Drawings
FIG. 1 is a schematic structural view of a conventional drying apparatus;
fig. 2 is a schematic structural diagram of the present invention;
FIG. 3 is a schematic structural view of a middle drying barrel body of the present invention;
FIG. 4 is a schematic structural diagram of the middle filter block of the present invention;
fig. 5 is a schematic structural diagram of the middle filter element of the present invention.
Detailed Description
As shown in figures 2-5, the utility model discloses a flue gas sampling high efficiency drying and filtering device, which comprises a cylindrical drying barrel 2, an air inlet 3 and an air outlet 4 are arranged on the drying barrel 2, the air outlet 4 is connected with a flue gas sampler or a dust sampler (not shown in the figure), a drying agent (not shown in the figure) is arranged in the drying barrel 2, the drying agent adopts allochroic silica gel, the top end part of the drying barrel 2 is provided with a mounting groove 5, a hollow tube 6 passes through the mounting groove 5 and then extends into the drying barrel 2, a continuous spiral baffle 7 is arranged between the hollow tube 6 and the inner wall of the drying barrel 2, so that a spiral cavity 8 communicated with the air inlet 3 is formed in the inner cavity of the drying barrel 2, a filter element assembly 9 is arranged in the mounting groove 5, the filter element assembly 9 comprises a filter element 10 and a filter block 11 arranged in the filter element 10, a through cavity 12 arranged along the length direction of the filter block 11 is arranged on the filter block 11, the outlet end of the through cavity channel 12 is set as an air outlet 4, filter holes 13 communicated with the through cavity channel 12 are circumferentially and uniformly distributed on the surface of the filter block 11 contacted with the filter element 10, the aperture of each filter hole 13 is 1mm, and the distance interval between every two adjacent filter holes 13 is 1mm, so that air can smoothly pass through the filter block 11.
The air inlet 3 is arranged at the top end of the drying barrel body 2, a first filter screen 14 is arranged on the air inlet 3, a second filter screen 15 is arranged at the tail end of the hollow pipe 6, and the first filter screen 14 and the second filter screen 15 are made of stainless steel materials.
It still includes base 16, and drying barrel 2 bottom is open structure, is equipped with recess 17 on the base 16, and drying barrel 2 can be dismantled and seal assembly in recess 17.
The base 16 is made of PE material, and the drying barrel body 2 is in threaded connection with the groove 17; the outer wall of the drying barrel body 2 is provided with a fixed belt plate 18, and the fixed belt plate 18 is provided with a hole 19; wherein, the spiral baffle 7, the drying barrel body 2, the hollow pipe 6 and the fixed band plate 18 are manufactured by integral molding or combination of super glue.
The spiral baffle 7 is connected to the outer wall of the hollow pipe 6 and is in interference fit with the inner wall of the drying barrel body 2 so as to separate a plurality of independent closed flow channels 20 at equal intervals; the height difference between the closed flow channels 20 is 25 mm; the wall thickness of the drying tub 2 is 3mm to increase strength.
The hollow tube 6 is made of organic glass, so that whether the allochroic silica gel is invalid or not can be conveniently observed; the wall thickness of the air inlet 3 end is 2 mm; the thickness of the spiral baffle 7 and the wall thickness of the hollow pipe 6 are both 2 mm.
The mounting groove 5 is arranged in the middle of the top end of the drying barrel body 2, a stop block 21 is annularly arranged on the inner wall of the mounting groove 5, the filter block 11 is cross-shaped, the filter block 11 is in threaded connection with the inner wall of the mounting groove 5, the bottom surface of the horizontal part of the filter block 11 is in contact with the stop block 21, the vertical part of the filter block 11 is inserted into the filter element 10, the hollow tube 6 is communicated with the inside of the mounting groove 5, a space is reserved between the outer wall of the filter element 10 and the inner wall of the mounting groove 5, and the filter element 10 is made of glass fiber; a cylinder 22 is arranged on the horizontal part of the filter block 11, the diameter of the cylinder 22 is 4mm, the height of the cylinder 22 is 3mm, and the cylinder 22 is used as a rotating handle, so that the force of fingers can be conveniently applied, and the filter assembly can be disassembled to clean and replace the filter element 10; the wall thickness of the vertical portion of the filter block 11 is 2 mm.
The utility model changes the left and right cavities in the existing drying barrel body 2 into the spiral cavity body 8, and the allochroic silica gel is placed in the spiral cavity body 8, and the smoke gas can rotate and descend when flowing, so that the smoke gas containing ash and water vapor is well mixed with the allochroic silica gel in the spiral cavity body 8, the contact time of the smoke gas containing ash and water vapor and the allochroic silica gel in the spiral cavity body 8 is increased, the allochroic silica gel can absorb water vapor more fully, and the absorption efficiency is improved; meanwhile, the detachable filtering component is arranged at the outlet of the device, so that the color-changing silica gel fragments and dust are filtered, the smoke sampler or the dust sampler can be better protected, and the sampling efficiency is improved.
The utility model integrates the drying and filtering functions, and the drying part and the filtering part are connected by screw thread, which ensures that the screw is screwed tightly and air-tight when in use; the specific working principle is as follows: opening the base 16, pouring new blue allochroic silicagel into the spiral cavity 8, determining the amount of the allochroic silicagel according to the using time, wherein the using time is long and needs to be long, the using time is short and needs to be short, the spiral baffle 7 at the lowest layer 2 layers is needed to be submerged at least, the lowest layer in the spiral cavity 8 is observed during use, all allochroic silicagel must be replaced before the lower layer allochroic silicagel becomes pink (HR < 50), and the base 16 is well installed and screwed after being placed, so that the air leakage is avoided; then the fixed belt on the belt hole 19 is tied to an instrument or a guardrail, and the air inlet of the smoke sampler or the dust sampler is connected to the air outlet 4 of the device; when sampling is started, smoke containing water vapor and dust firstly enters a spiral cavity 8 from an air inlet 3, the smoke rotates and descends in the spiral cavity 8, the smoke is well mixed through spiral rolling, so that the allochroic silica gel fully absorbs moisture, the smoke can enter a hollow tube 6 through a second filter screen 15 after reaching the bottom of the device, the second filter screen 15 can prevent the allochroic silica gel from entering the hollow tube 6 to cause blockage, dried smoke possibly contains allochroic silica gel fragments and dust, so the smoke still needs to be filtered, the smoke then upwards flows into a filtering step from the hollow tube 6, the smoke firstly leads to filtering holes 13 of 1mm of a filtering block 11 from the periphery and the bottom of a filter element 10, then is collected to a through cavity channel 12 through a plurality of filtering holes 13, and then enters a smoke oxygen or smoke sampler through an air outlet 4; therefore, the purposes of prolonging the service life of the sampler, saving the cost and improving the working efficiency are achieved.
The direction of the arrows in fig. 2 is the flow direction of the flue gas.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a flue gas sampling high efficiency drying and filtering device, its includes dry staving, be equipped with air inlet, gas outlet on the dry staving, dry staving embeds there is drier, its characterized in that: the drying barrel is characterized in that a mounting groove is formed in the top end of the drying barrel, the hollow tube penetrates through the mounting groove and then extends into the drying barrel, a continuous spiral baffle is arranged between the hollow tube and the inner wall of the drying barrel, so that a spiral cavity communicated with the air inlet is formed in the inner cavity of the drying barrel, a filter element assembly is assembled in the mounting groove and comprises a filter element and a filter block arranged in the filter element, a through cavity channel arranged in the length direction of the filter block is formed in the filter block, the outlet end of the through cavity channel is arranged as the air outlet, and a filter hole communicated with the through cavity channel is formed in the surface of the filter block, and is contacted with the filter element.
2. The high-efficiency drying and filtering device for sampling the flue gas as claimed in claim 1, wherein: the air inlet set up in dry staving top be equipped with first filter screen on the air inlet the end of hollow tube is equipped with the second filter screen, first filter screen, second filter screen are stainless steel.
3. The high-efficiency drying and filtering device for sampling the flue gas as claimed in claim 1, wherein: the drying barrel body is of an open structure, a groove is formed in the base, and the drying barrel body is detachably assembled in the groove in a sealing mode.
4. The high-efficiency drying and filtering device for sampling the flue gas as claimed in claim 3, wherein: the base is made of PE materials, and the drying barrel body is connected in the groove in a threaded mode; the outer wall of the drying barrel body is provided with a fixed belt plate, and the fixed belt plate is provided with holes.
5. The high-efficiency drying and filtering device for sampling the flue gas as claimed in claim 1, wherein: the spiral baffle is connected to the outer wall of the hollow pipe and in interference fit with the inner wall of the drying barrel body so as to separate a plurality of independent closed flow passages at equal intervals.
6. The high-efficiency drying and filtering device for sampling the flue gas as claimed in claim 5, wherein: the height difference between the closed flow channels is 25 mm; the wall thickness of the drying barrel body is 3 mm.
7. The high-efficiency drying and filtering device for sampling the flue gas as claimed in claim 1, wherein: the hollow tube is made of organic glass; the wall thickness of the air inlet end is 2 mm; the thickness of the spiral baffle plate and the wall thickness of the hollow pipe are both 2 mm.
8. The high-efficiency drying and filtering device for sampling the flue gas as claimed in claim 1, wherein: the mounting groove set up in dry staving top middle part the mounting groove inner wall hoop is provided with the dog, the filter block is cross, the filter block with threaded connection between the mounting groove inner wall, the horizontal part bottom surface of filter block with the dog contacts, the vertical portion of filter block is inserted and is located in the filter core, the hollow tube with the inside being linked together of mounting groove, the outer wall of filter core with leave the interval between the mounting groove inner wall, the filter core adopts the glass fiber material.
9. The high-efficiency drying and filtering device for sampling the flue gas as claimed in claim 8, wherein: a cylinder is arranged on the horizontal part of the filter block, and the diameter of the cylinder is 4mm, and the height of the cylinder is 3 mm; the wall thickness of the vertical part of the filter block is 2 mm.
10. The high-efficiency drying and filtering device for sampling the flue gas as claimed in claim 1, wherein: the filter element is in contact with the filter block, the filter holes are uniformly distributed in the circumferential direction on the surface of the filter block, the aperture of each filter hole is 1mm, and the distance interval between adjacent filter holes is 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121222325.6U CN215296832U (en) | 2021-06-02 | 2021-06-02 | Efficient drying and filtering device for flue gas sampling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121222325.6U CN215296832U (en) | 2021-06-02 | 2021-06-02 | Efficient drying and filtering device for flue gas sampling |
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| CN215296832U true CN215296832U (en) | 2021-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390684A (en) * | 2021-06-02 | 2021-09-14 | 苏州西热节能环保技术有限公司 | Efficient drying and filtering device for flue gas sampling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390684A (en) * | 2021-06-02 | 2021-09-14 | 苏州西热节能环保技术有限公司 | Efficient drying and filtering device for flue gas sampling |
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