CN212841659U - Anti-blocking adjustable flue hole plate device and flue equipment - Google Patents
Anti-blocking adjustable flue hole plate device and flue equipment Download PDFInfo
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- CN212841659U CN212841659U CN202021586730.1U CN202021586730U CN212841659U CN 212841659 U CN212841659 U CN 212841659U CN 202021586730 U CN202021586730 U CN 202021586730U CN 212841659 U CN212841659 U CN 212841659U
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Abstract
The utility model provides an anti-blocking adjustable flue orifice plate device and flue equipment, which relate to the field of environmental protection equipment and comprise at least two orifice plates which are sequentially attached, wherein the orifice plates are provided with a plurality of through holes which are arranged in an array way, the through holes form a channel for flue gas to pass through, at least one orifice plate is matched with an adjusting mechanism, the adjusting mechanism drives the corresponding orifice plate to move so as to change the contact ratio between the through holes of the orifice plate and the through holes of the adjacent orifice plate, so as to adjust the flow rate of the flue gas passing through the channel, and a dynamically adjustable orifice plate is provided, which can realize flue gas adjustment under different working conditions; the air distribution holes of the pore plate effectively regulate the flow field, thereby greatly reducing the consumption of the guide plate and lightening the weight of the flue; the flue gas pressure and flow are adjusted through the opening of the pore plate, so that the fan reaches the optimal output point, and the efficiency of the fan and the efficiency of the whole set of flue gas treatment device are improved.
Description
Technical Field
The utility model relates to an environmental protection equipment field, in particular to prevent stifled adjustable flue orifice plate device and flue equipment.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The flue orifice plate device is a throttling device commonly used in the environmental protection industry of China, a flue is an important connecting part for introducing flue gas into an environmental protection flue gas treatment device from a source, and in the conventional design, before the flue enters the environmental protection device, the efficiency of a post-positioned flue gas treatment device is too low due to flow field disorder, excessive residual pressure and excessive pressure and flow, the output of a post-positioned induced draft fan is insufficient, and the flow field can be stabilized only by adding a large number of flow guide devices; the residual pressure of the flue gas flow is too large, and the fan cannot operate at the optimal working condition point.
The inventor finds that in the conventional design of a flue, the flow field is disordered, the flow is particularly serious in a short flue, a large number of guide plates are required to be added for flow guiding through flow field simulation, the residual pressure of a flue gas source is overlarge, so that the fan is inaccurate in type selection, the fan works below an optimal output point for a long time, the efficiency of the fan is low, waste is caused, and when the flue gas flow is regulated and controlled at present, the flow of a certain working condition of the flue gas is overlarge, an instrument exceeds a measuring range, so that a rear flue gas treatment device exceeds a conventional design value, and finally the design requirement; the conventional pore plate is not adjustable, so that the blockage caused by the accumulated ash in the flue is easy to cause.
SUMMERY OF THE UTILITY MODEL
The purpose of the disclosure is to provide an anti-blocking adjustable flue orifice plate device and flue equipment aiming at the defects in the prior art, and provide a dynamic adjustable orifice plate which can realize flue gas adjustment under different working conditions according to the opening degree of the orifice plate; the air distribution holes of the pore plate effectively regulate the flow field, thereby greatly reducing the consumption of the guide plate and lightening the weight of the flue; the flue gas pressure and flow are adjusted through the opening of the pore plate, so that the fan reaches the optimal output point, and the efficiency of the fan and the efficiency of the whole set of flue gas treatment device are improved.
The first purpose of the disclosure is to provide an anti-blocking adjustable flue orifice plate device, which adopts the following technical scheme:
including two at least orifice plates that laminate the setting in proper order, be equipped with a plurality of through-holes that the array was arranged on the orifice plate, the through-hole forms the passageway that is used for making the flue gas to pass through, and at least one orifice plate cooperation has guiding mechanism, and guiding mechanism drive corresponds the orifice plate and removes the contact ratio that changes the through-hole of this orifice plate and the through-hole of adjacent orifice plate to the flue gas flow who passes the passageway is adjusted.
Furthermore, the adjusting mechanism comprises a driving element and a screw nut, the driving element is connected with the screw nut through a transmission mechanism, and the driving nut rotates to enable the screw to drive the pore plate to move along the binding face of the adjacent pore plate.
Furthermore, the cross section of the through holes on the pore plates is circular or polygonal, the through holes at corresponding positions on the adjacent pore plates are communicated, and the through holes on the adjacent pore plates are the same in shape.
Further, the through holes on the pore plate are arranged in a rectangular array or a circular array.
A second object of the present disclosure is to provide an anti-blocking adjustable flue apparatus, which utilizes the above mentioned anti-blocking adjustable flue orifice plate device.
Further, still include air supply mechanism, air supply mechanism includes pipeline, hood and fan, and the both ends of pipeline are located the both sides of preventing stifled adjustable flue orifice plate device respectively, and pipeline one end intercommunication has the hood, and the pipeline cooperation has the fan.
Furthermore, the input end of the fan passes through the flue on the downstream of the pipeline communicating pore plate, and the output end of the fan passes through the flue on the upstream of the pipeline communicating pore plate and the hood communicating pore plate.
Furthermore, the output end of the fan is communicated with a shell through another pipeline, the pore plate is positioned in the shell, and the air flow output by the fan forms sealed air and is distributed in the shell.
Further, the device also comprises a differential pressure transmitter, and the testing ends of the differential pressure transmitter are respectively arranged in the upstream flue and the downstream flue of the orifice plate.
Furthermore, the pipeline is matched with an air chamber, and an air distribution plate is arranged at the position where the air chamber is communicated with the flue.
Compared with the prior art, the utility model has the advantages and positive effects that:
(1) the dynamic adjustable pore plate is provided, and the flue gas can be adjusted under different working conditions according to the opening of the pore plate; the air distribution holes of the pore plate effectively regulate the flow field, thereby greatly reducing the consumption of the guide plate and lightening the weight of the flue; the flue gas pressure and flow are adjusted through the opening of the pore plate, so that the fan reaches the optimal output point, and the efficiency of the fan and the efficiency of the whole set of flue gas treatment device are improved;
(2) the adjusting device can adjust the flow area according to the dislocation degree between the holes among the hole plates, thereby changing the pressure change and the flow change, blowing through the hood in front of the hole plates, leading the ash deposit to be in a suspension state after being emptied, being taken away by smoke and entering the next link through the hole plates, and achieving the effect of preventing the hole plates from being blocked.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a schematic structural view of a pore plate device in embodiments 1 and 2 of the present disclosure.
In the figure, 1, a differential pressure transmitter, 2, a motor, 3, a screw rod, 4, a nut, 5, a motor transmission rod, 6, a pore plate, 7, a sealing shell, 8, a smoke and air pipeline, 9, an air cap, 10, an air chamber, 11, an ash discharge door, 12 fans, 13 and an air distribution plate.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
For convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate that the directions of movement are consistent with those of the figures themselves, and are not limiting in structure, but merely facilitate the description of the invention and simplify the description, rather than 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 disclosure.
As introduced in the background art, when flue gas flow regulation and control are performed in the prior art, the flow of flue gas under a certain working condition is too large, and the meter exceeds the measuring range, so that the rear flue gas treatment device exceeds the conventional design value, and finally the design requirement cannot be met; conventional orifice plate is unadjustable, causes the interior deposition of dust of flue to block up easily, to above-mentioned problem, this disclosure provides a prevent stifled adjustable flue orifice plate device and flue equipment.
Example 1
In a typical embodiment of the present disclosure, as shown in fig. 1, an anti-blocking adjustable flue orifice plate device is provided.
When the flue gas flows in the flue, the flow rate of the flue gas is possibly overlarge due to the flowing pressure, the instrument exceeds the measuring range, the rear flue gas treatment device exceeds the conventional design value, the actual requirement is difficult to meet, in addition, when the flow rate is controlled by adopting the conventional orifice plate, only fixed flow rate control can be realized, and reasonable regulation of the flow rate cannot be realized, and in order to solve the problem, the adjustable flue orifice plate device is provided;
the flue gas purification device mainly comprises a plurality of pore plates 6 which are sequentially arranged, wherein adjacent pore plates are attached to each other to avoid dust accumulation between the pore plates, a plurality of through holes which are arranged in an array are arranged on the pore plates, the through holes form a channel for flue gas to pass through, at least one pore plate is matched with an adjusting mechanism, and the adjusting mechanism drives the corresponding pore plate to move to change the contact ratio of the through holes of the pore plate and the through holes of the adjacent pore plates so as to adjust the flow rate of the flue gas passing through the channel;
the opening degree of the channel is adjusted through the contact ratio, so that the pressure and the flow of the passing flue gas are adjusted, the air distribution holes of the pore plate can effectively regulate the flow field, the consumption of the guide plate is greatly reduced, and the effect of reducing the weight of the flue is achieved;
in addition, after the flue gas flow is controlled, the fan can reach the optimal output point, and the efficiency of the fan and the efficiency of the whole set of flue gas treatment device are improved.
For the adjusting mechanism, the adjusting mechanism comprises a driving element and a screw nut, the driving element is connected with the nut 4 through a transmission mechanism, and the nut is driven to rotate so that the screw 3 drives the pore plate to move along the binding surface of the adjacent pore plate;
when two pore plates are arranged as shown in fig. 1, an adjusting mechanism is arranged on one pore plate, so that the adjustment of the contact ratio of through holes on two adjacent pore plates is realized;
in other embodiments, when arranging a plurality of orifice plates, can all set up adjustment mechanism to every orifice plate to make the position of all orifice plates can both carry out effective regulation, make the coincidence degree of through-hole realize more accurate and pertinence regulation.
It can be understood that the driving element can be a motor 2, the transmission mechanism can be gear transmission, the output end of the motor is matched with a gear, the outer circumferential surface of the nut forms a gear structure, the motor drives the nut to rotate through the gear transmission, so as to drive the screw rod matched with the nut to move along the axial direction, so that the orifice plate moves along the adjacent orifice plate binding surface, and the purpose of adjusting the contact ratio of the through holes is achieved;
in order to realize the precise adjustment of the orifice plate, the motor can be a stepping motor; of course, when a plurality of orifice plates are adjusted, the orifice plates can be adjusted to different directions, and arrangement of an adjusting mechanism is facilitated.
The cross section of each through hole on each pore plate is circular or polygonal, the through holes at corresponding positions on adjacent pore plates are communicated, and the through holes on the adjacent pore plates are the same in shape;
the through holes on the pore plate are arranged in a rectangular array or a circular array.
It is understood that the orifice plate is not limited to two pieces, and may be assembled by using a plurality of orifice plates, wherein the openings on the orifice plate are not limited to a circle, and may be a rhombus, a rectangle, a triangle, a pentagon, a hexagon, a pentagon, etc.
Through the dynamic adjustable pore plate, the flue gas regulation under different working conditions can be realized according to the opening size of the pore plate; the air distribution holes of the pore plate effectively regulate the flow field, thereby greatly reducing the consumption of the guide plate and lightening the weight of the flue; the flue gas pressure and flow are adjusted through the opening of the pore plate, so that the fan reaches the optimal output point, and the efficiency of the fan and the efficiency of the whole set of flue gas treatment device are improved.
Example 2
In another exemplary embodiment of the present disclosure, as shown in fig. 1, an anti-blocking adjustable flue apparatus is provided, which utilizes an anti-blocking adjustable flue orifice plate device as described in example 1.
The device comprises an air supply mechanism, an anti-blocking adjustable flue orifice plate device, a differential pressure transmitter and a shell;
the anti-blocking adjustable flue equipment is arranged in the flue, the pore plate is arranged in the flue in a way of being vertical to the flue, and the smoke passing through the pore plate is partially blocked, so that the flow and the pressure of the smoke are controlled;
the testing ends of the differential pressure transmitter are respectively arranged in the upstream flue and the downstream flue of the orifice plate;
because two test ends of the differential pressure transmitter are respectively positioned at the upstream and the downstream of the pore plate, the pore plate can block flue gas in a flue and control the pressure and the flow of the flue gas, when the differential pressure measured by the differential pressure transmitter is abnormal, the blockage or other abnormality of the pore plate position is shown, even if soot blowing treatment or inspection is carried out.
At specific during operation, poor changer 1 provides both sides pressure differential signal, and motor 2 drives nut 4 through motor drive pole 5 and rotates, and nut 4 is rotatory to drive lead screw 3 and reciprocates to realize the removal of the relative position of two orifice plates 6, coincidence between 6 initial position holes of two orifice plates and the hole, behind the circular telegram regulation, make the hole on two orifice plates misplace through reciprocating of a slice orifice plate, thereby changed flow area.
The air supply equipment comprises a pipeline, an air cap and a fan, wherein two ends of the pipeline are respectively positioned at two sides of the anti-blocking adjustable flue orifice plate device, one end of the pipeline is communicated with the air cap, and the pipeline is matched with the fan;
the input end of the fan passes through the flue at the downstream of the duct communicating pore plate, and one path of the output end of the fan passes through the flue at the upstream of the duct communicating pore plate and the hood communicating pore plate;
the output end of the fan is communicated with the shell through another pipeline, the pore plate is positioned in the shell, and the air flow output by the fan forms sealed air and is distributed in the shell.
The pipeline is matched with an air chamber, and an air distribution plate is arranged at the position where the air chamber is communicated with the flue; the fan 12 sucks the rear side flue gas through the flue gas duct 8, then provides one path of sealing air for the sealing shell 7 through the flue gas duct 8, the other path of flue gas enters the air chamber 10, is released through the air chamber 10 through the air distribution plate 13 and the hood 9, blows up the flue dust deposited in front of the pore plate, and takes away the dust in a suspension state and enters the next working link through an empty door. When the ash is accumulated sufficiently, the ash discharge door 11 is opened to discharge the ash.
It is understood that, as for the blast cap, the specific selection is not limited to a bell-shaped blast cap, and the blast cap can be a pigtail type blast cap or a directional blast cap. The hot air flue is not only suitable for being installed in a flue, but also can be installed in a boiler cold air flue.
In addition, in order to ensure the overall durability of the device, the pore plate is made of high-temperature-resistant and corrosion-resistant materials, the shape of the opening in the pore plate is selected according to the requirement of a stable flow field, and the use of a rear device flue guide plate is reduced.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. The utility model provides a prevent stifled adjustable flue orifice plate device, its characterized in that, is equipped with a plurality of through-holes that the array was arranged including two at least orifice plates that laminate the setting in proper order on the orifice plate, and the through-hole forms the passageway that is used for making the flue gas to pass through, and at least one orifice plate cooperation has guiding mechanism, and guiding mechanism drive corresponds the orifice plate and removes the contact ratio that changes the through-hole of this orifice plate and the through-hole of adjacent orifice plate to the flue gas flow who passes the passageway is passed in.
2. The anti-clogging adjustable flue orifice plate apparatus of claim 1, wherein the adjustment mechanism comprises a driving element and a lead screw nut, the driving element is connected to the nut through a transmission mechanism, and the driving nut is rotated so that the lead screw drives the orifice plate to move along the abutting surface of the adjacent orifice plate.
3. The anti-blocking adjustable flue orifice plate device according to claim 1, wherein the cross-sectional shape of the through holes on the orifice plate is circular or polygonal, the through holes at corresponding positions on adjacent orifice plates are communicated, and the through holes arranged on adjacent orifice plates have the same shape.
4. The anti-clogging adjustable flue orifice plate apparatus of claim 1, wherein the through holes on the orifice plate are arranged in a rectangular array or a circular array.
5. An anti-blocking adjustable flue device, characterized by comprising the anti-blocking adjustable flue orifice plate device according to any one of claims 1 to 4.
6. The anti-blocking adjustable flue equipment according to claim 5, further comprising an air supply mechanism, wherein the air supply mechanism comprises a pipeline, a hood and a fan, two ends of the pipeline are respectively located at two sides of the anti-blocking adjustable flue orifice plate device, one end of the pipeline is communicated with the hood, and the pipeline is matched with the fan.
7. An anti-clogging adjustable flue device according to claim 6, wherein the fan input end passes through the flue downstream of the duct communicating pore plate, and the output end passes through the flue upstream of the duct communicating pore plate and the hood communicating pore plate.
8. The anti-blocking adjustable flue device according to claim 7, wherein the output end of the fan is communicated with a housing through another pipeline, the orifice plate is positioned in the housing, and the air flow output by the fan forms sealed air and is distributed in the housing.
9. An anti-clogging adjustable flue apparatus as claimed in claim 6, further comprising a differential pressure transmitter, the testing ends of the differential pressure transmitter being disposed in the upstream flue and the downstream flue of the orifice plate, respectively.
10. An anti-blocking adjustable flue device according to claim 6, wherein the duct is fitted with an air chamber, and an air distribution plate is provided at a position where the air chamber communicates with the flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021586730.1U CN212841659U (en) | 2020-08-03 | 2020-08-03 | Anti-blocking adjustable flue hole plate device and flue equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021586730.1U CN212841659U (en) | 2020-08-03 | 2020-08-03 | Anti-blocking adjustable flue hole plate device and flue equipment |
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| CN212841659U true CN212841659U (en) | 2021-03-30 |
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| CN202021586730.1U Active CN212841659U (en) | 2020-08-03 | 2020-08-03 | Anti-blocking adjustable flue hole plate device and flue equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574340A (en) * | 2022-10-08 | 2023-01-06 | 江苏东方成套设备制造集团有限公司 | Anti-blocking device for smoke duct baffle of tubular heating furnace |
-
2020
- 2020-08-03 CN CN202021586730.1U patent/CN212841659U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574340A (en) * | 2022-10-08 | 2023-01-06 | 江苏东方成套设备制造集团有限公司 | Anti-blocking device for smoke duct baffle of tubular heating furnace |
| CN115574340B (en) * | 2022-10-08 | 2024-01-09 | 江苏东方成套设备制造集团有限公司 | Anti-blocking device for smoke duct baffle of tubular heating furnace |
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