CN113101762A - Boiler flue gas filtering device - Google Patents

Abstract

The invention relates to a boiler flue gas filtering device which comprises a shell, a supporting component, a fan, a filtering component and a drainage component, wherein a smoke inlet is formed at one end of the shell, a smoke outlet and a sampling port are formed at the other end of the shell, the supporting component is connected to the inner wall of the shell, the fan and the filtering component are arranged on the supporting component, the fan is positioned in the middle of the shell, the blowing surface of the fan faces towards the smoke inlet of the shell, the filtering component is positioned on the periphery of the fan, and the drainage component is arranged between the fan and the smoke inlet of the shell. According to the invention, flue gas entering the shell is well mixed and discharged, and the flue gas is filtered and impurity-removed in the flue gas discharging process, so that the good purity and mixing uniformity of the flue gas are ensured, the problems that the detection equipment is damaged due to large detection error and impurities of flue gas components are solved, the accuracy of data obtained by the detection equipment is ensured, the damage of the impurities in the flue gas to the detection equipment is reduced, and the flue gas purification device is simple in structure and convenient to operate.

Description

Boiler flue gas filtering device

Technical Field

The invention belongs to the technical field of flue gas filtration, and particularly relates to a boiler flue gas filtering device.

Background

Boiler flue gas is at the in-process that discharges, often need detect emission composition and the content of flue gas, whether reach the emission standard of regulation with judging it, mainly detect exhaust flue gas through utilizing corresponding check out test set directness among the current detection method, the distribution homogeneity of different compositions in this kind of detection mode is difficult to guarantee the flue gas, lead to detection error easily, in addition, still contain a large amount of suspended solid impurity in the flue gas, cause check out test set to damage easily, consequently current detection method is unfavorable for carrying out good judgement to the content composition of flue gas, detection error is great, can't carry out accurate and timely adjustment to flue gas treatment equipment through the testing result. Therefore, in view of the current situation, there is an urgent need to develop a boiler flue gas filtering device to meet the needs of practical use and improve the accuracy of flue gas detection results.

Disclosure of Invention

The invention aims to provide a boiler flue gas filtering device which is used for solving the problems that the detection error of flue gas components is large and impurities easily cause damage to detection equipment.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a boiler flue gas filter equipment, includes casing, supporting component, fan, filtering component and drainage component, the one end of casing form into the mouth, the other end of casing form outlet flue and sample connection, supporting component connect the shells inner wall on, the fan with filtering component set up the supporting component on, the fan be located the middle part of casing just the face orientation of blowing of fan the mouth that advances of casing, filtering component be located around the fan, drainage component set up the fan with the casing advance between the mouth.

Preferably, the drainage assembly comprises a first drainage plate and a second drainage plate, the first drainage plate is connected to the support assembly, the second drainage plate is connected to the shell, and the smoke inlet is formed between the first drainage plate and the second drainage plate. The first drainage plate and the second drainage plate are used for well mixing and discharging smoke entering the shell.

Preferably, the first flow-guide plate extends from the support assembly toward the second flow-guide plate and curves toward the inner wall of the housing, and the second flow-guide plate extends from an end of the housing toward the first flow-guide plate and curves toward the centerline of the housing.

Preferably, the drainage assembly further comprises a first connecting rod and a second connecting rod, the first drainage plate is connected with the second drainage plate through the first connecting rod, and the second drainage plate is connected with the casing through the second connecting rod.

Preferably, the filter device further comprises a flow guide block, the flow guide block is arranged between the support assembly and the smoke outlet of the shell, an opening in the middle of the flow guide block is communicated with the smoke outlet of the shell, and one end, facing the support assembly, of the flow guide block is in an inward arc shape. The drainage block realizes the function of blast air mixed flow of the smoke and can guide and mix the clean smoke passing through the filter assembly to the middle part of the shell.

Preferably, the filter assembly comprises a box body and a filter material arranged in the box body, wherein the box body is provided with smoke holes at two sides of the filter material respectively. The smoke hole can ensure that smoke normally passes through the filtering component. In the process of flue gas emission, impurities are removed from the flue gas by the filter assembly, so that the good purity and mixing uniformity of the flue gas are ensured, and the good accuracy in flue gas detection is ensured.

Further preferably, the filtering component further comprises a moisture removing layer, the moisture removing layer is arranged in the box body, the moisture removing layer can complete moisture removing work on the smoke, and the effect of detecting the influence of moisture in the smoke is prevented.

Preferably, the filtering device further comprises a filtering baffle plate, and the filtering baffle plate is arranged on the supporting assembly and is positioned between the fan and the drainage assembly.

Further preferably, the filtering baffle plate is provided with a filtering hole, the filtering hole is conical, the conical hole can increase the blowing air pressure of the fan, and meanwhile, ash can be prevented from entering the fixing frame and the fan is in contact with the fixing frame.

Preferably, the supporting component comprises a columnar fixing frame, a supporting rod and a positioning rod, the fixing frame is positioned in the middle of the shell, the supporting rod is connected between the inner wall of the shell and the fixing frame, the positioning rod is connected on the fixing frame, the filtering component is arranged on the supporting rod, and the fan is connected on the positioning rod and positioned in the fixing frame.

Preferably, the fan is located in the fixing frame, and the fan does not protrude out of the end face of the fixing frame. The fixing frame can guide the acting direction of wind, prevent the wind power of the fan from spreading to the peripheral side, and is favorable for preventing the wind from blowing out from the smoke inlet.

Preferably, the filtering device further comprises a slag discharging assembly, the slag discharging assembly is arranged on the shell and comprises a slag discharging pipeline and a sealing cover, one end of the slag discharging pipeline is communicated with the shell, and the sealing cover is connected to the other end of the slag discharging pipeline. The slag discharging pipeline can conveniently discharge ash slag generated in the device, and the sealing cover can prevent the influence on normal air suction and drainage caused by overlarge caliber or excessive quantity of the slag discharging pipeline.

Preferably, the filtering device further comprises a smoke pipeline and a sampling pipeline, the smoke pipeline is communicated with the smoke outlet of the shell, the sampling port is arranged on the smoke pipeline, and the sampling pipeline is communicated with the sampling port.

Further preferably, the flue gas pipeline is Z-shaped, the sampling pipeline is L-shaped, and the sampling pipeline is arranged on a pipe section of the flue gas pipeline, which is inclined to the horizontal plane. The sampling pipeline can ensure that the smoke for detection has good circulation performance.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

according to the invention, flue gas entering the shell is well mixed and discharged, and the flue gas is filtered and impurity-removed in the flue gas discharging process, so that the good purity and mixing uniformity of the flue gas are ensured, the problems that the detection equipment is damaged due to large detection error and impurities of flue gas components are solved, the accuracy of data obtained by the detection equipment is ensured, the damage of the impurities in the flue gas to the detection equipment is reduced, the structure is simple, the operation is convenient, and the flue gas treatment equipment can be accurately and timely adjusted by operators.

Drawings

FIG. 1 is a schematic perspective view of a flue gas filtering apparatus according to the present embodiment;

FIG. 2 is a schematic front view of the flue gas filtering apparatus of the present embodiment;

FIG. 3 is a schematic sectional view of the flue gas filtering apparatus of the present embodiment;

fig. 4 is a partially enlarged schematic view of the filter assembly of the present embodiment.

In the above drawings: 1. a housing; 2. a support assembly; 21. a fixed mount; 22. a support bar; 23. positioning a rod; 3. a fan; 4. a filter assembly; 41. a box body; 411. a bottom case; 412. a box cover; 42. filtering the material; 5. a drainage assembly; 51. a first drainage plate; 52. a second drainage plate; 53. a first connecting rod; 54. a second connecting rod; 6. a drainage block; 7. a filtering baffle; 8. a slag discharge assembly; 81. a slag discharge pipeline; 82. a sealing cover; 9. a flue gas duct; 10. a sampling pipe; 11. a connecting member; 12. a smoke inlet.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, 2 and 3, the boiler flue gas filtering device comprises a casing 1, a support assembly 2, a fan 3, a filtering assembly 4, a flow guiding assembly 5, a flow guiding block 6, a filtering baffle 7, a slag discharging assembly 8, a flue gas pipeline 9 and a sampling pipeline 10. Wherein:

the lower extreme of casing 1 has seted up into mouth 12, and the upper end of casing 1 has seted up outlet flue and sample connection, and the sample connection is seted up on flue gas pipeline 9 and is linked together with sample pipeline 10. In this embodiment: the shape of flue gas pipeline 9 adopts the Z style of calligraphy, and the shape of sampling pipe 10 adopts the L type, and sampling pipe 10 sets up on the pipeline section of flue gas pipeline 9's the slope in horizontal plane, and sampling pipe 10 can guarantee that the flue gas that is used for detecting has good flow property.

Supporting component 2 connects on casing 1 inner wall, and supporting component 2 includes cylindrical mount 21, bracing piece 22 and locating lever 23, and mount 21 is located the middle part of casing 1, and bracing piece 22 connects between casing 1 inner wall and mount 21, and locating lever 23 connects on mount 21.

The fan 3 and the filter assembly 4 are arranged on the supporting assembly 2, the fan 3 is positioned in the middle of the shell 1, the blowing surface of the fan 3 faces the smoke inlet 12 of the shell 1, and the filter assembly 4 is positioned around the fan 3. Specifically, the method comprises the following steps:

the fan 3 is connected to the positioning rod 23 and positioned in the fixing frame 21, and the fan 3 does not protrude from the end surface of the fixing frame 21, that is, the bottom position plane of the fixing frame 21 is lower than the bottom position plane of the fan 3. The fixing frame 21 guides the direction of the wind, prevents the wind force of the fan 3 from spreading to the peripheral side, and is advantageous for preventing the wind from blowing out from the smoke inlet 12.

The filter assembly 4 is disposed on the support rod 22. In this embodiment: the structure of the filter assembly 4 is shown in fig. 4, and includes a box 41 and a filter material 42 disposed in the box 41, specifically: the box body 41 comprises a bottom box 411 arranged on the supporting rod 22 and a box cover 412 arranged at an opening above the bottom box 411, at this time, in order to ensure the normal filtering function of the box body 41, a plurality of flue gas holes (not shown in the figure) are formed in the bottom box 411 and the box cover 412, and the flue gas holes can ensure that flue gas normally passes through the filtering component 4; in order to avoid the influence of moisture on the detection effect under some special conditions, the smoke needs to be dehumidified, specifically, the filter material 42 is disposed at the bottom of the inner cavity of the bottom case 411, and a dehumidification layer (a desiccant setting layer can be added, the type of desiccant is not limited here) is disposed between the filter material 42 and the case cover 412, where the filter material 42 in this embodiment is filter cotton.

The drainage component 5 is arranged between the bottom of the fan 3 and the shell 1, the drainage block 6 is arranged between the smoke outlet of the support component 2 and the shell 1, the slag discharging component 8 is arranged at the lower end of the shell 1, and the smoke pipeline 9 is communicated with the smoke outlet of the shell 1.

In this embodiment: the drainage assembly 5 comprises a first drainage plate 51, a second drainage plate 52, a first connecting rod 53 and a second connecting rod 54, one end of the first drainage plate 51 is connected to the support assembly 2, and the other end of the first drainage plate 51 is connected with one end of the second drainage plate 52 through the first connecting rod 53; the other end of the second flow-guiding plate 52 is connected with the casing 1 through a second connecting rod 54, and a smoke inlet 12 is formed between the first flow-guiding plate 51 and the second flow-guiding plate 52.

The first flow-guide plate 51 extends from the support assembly 2 to the second flow-guide plate 52 and is curved towards the inner wall of the housing 1, and the second flow-guide plate 52 extends from one end of the housing 1 to the first flow-guide plate 51 and is curved towards the centre line of the housing 1, the first and second flow- guide plates 51, 52 each being bell-mouthed as shown in figure 3.

The opening is arranged in the middle of the drainage block 6, the opening is communicated with the smoke outlet of the shell 1, the drainage block 6 is in an inward arc shape towards one end of the supporting component 2, the drainage block 6 can guide and mix the clean smoke passing through the filtering component 4 to the middle of the shell 1, and good accuracy is achieved when the smoke is normally discharged and detected.

For preventing the lime-ash from contacting with fan 3 at the device during operation, influence fan 3's normal function, be provided with the filtering baffle 7 that is used for filtering impurity in the bottom of mount 21, and seted up the filtration pore on filtering baffle 7, for effectively preventing lime-ash and fan 3 contact under the condition that does not reduce wind-force as far as possible, filter the bell mouth that the pore all is big-end-up, can increase the wind pressure that fan 3 bloied, and avoided the lime-ash to get into the inside of mount 21.

Arrange sediment subassembly 8 including arranging sediment pipeline 81, sealed lid 82, arrange the one end of sediment pipeline 81 and be linked together with casing 1, and the equidistant axle center that encircles casing 1 of a plurality of sediment pipelines 81 sets up, arrange the other end of sediment pipeline 81 and be provided with the external screw thread interface, all be connected with on every sediment pipeline's the external screw thread interface and be used for shutoff to arrange sediment pipeline 81 open-ended sealed lid 82, arrange sediment pipeline 81 can be convenient with the ash and slag discharge of the inside production of device, sealed lid 82 can prevent to influence normal breathing in and the drainage because of arranging sediment pipeline 81 bore oversize or quantity too much. Along with the operation of the device, ash and slag generated by the device are increased gradually, so that the ash and slag can be conveniently discharged after entering the slag discharging pipeline 81 in order to facilitate the removal of the ash and slag.

Furthermore, the exterior of the housing 1 is provided with a connecting member 11, and the housing 1 is fixed inside the flue gas discharge port by the connecting member 11.

The following specifically explains the working process of this embodiment:

fix casing 1 in the inside of exhanst gas port through adapting unit 11, boiler flue gas is from the bottom of casing 1 department entering device, fan 3 is when carrying out the exhaust, receive the pressure effect of wind speed, the flue gas is from first drainage plate 51, it is inside by the suction device that the mouth 12 department of advancing between the second drainage plate 52 is located, guide the flue gas to the week side of casing 1 inner wall under drainage component 5's effect, the flue gas is when filter assembly 4, filter assembly 4 filters the edulcoration to the flue gas, guarantee the good purity of flue gas and mixing uniformity, then under the effect of drainage piece 6 with the clean flue gas after filtering to the exit guide of casing 1 mixes, and discharge from flue gas pipeline 9, if need detect flue gas concentration content, can draw out from the interior exhaust gas of sampling pipe 10 and detect.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a boiler flue gas filter equipment which characterized in that: including casing, supporting component, fan, filtering component and drainage component, the one end of casing form into the mouth, the other end of casing form outlet flue and sample connection, supporting component connect the shells inner wall on, the fan with filtering component set up the supporting component on, the fan be located the middle part of casing just the face of blowing of fan towards the inlet flue of casing, filtering component be located around the fan, drainage component set up the fan with the inlet flue of casing between.

2. The boiler flue gas filtering device according to claim 1, wherein: the drainage component comprises a first drainage plate and a second drainage plate, the first drainage plate is connected to the supporting component, the second drainage plate is connected to the shell, and the first drainage plate and the second drainage plate form a smoke inlet.

3. The boiler flue gas filtering device according to claim 2, wherein: the first flow-guide plate extends from the support assembly toward the second flow-guide plate and curves toward the inner wall of the housing, and the second flow-guide plate extends from one end of the housing toward the first flow-guide plate and curves toward the centerline of the housing.

4. The boiler flue gas filtering device according to claim 2, wherein: the drainage assembly further comprises a first connecting rod and a second connecting rod, the first drainage plate is connected with the second drainage plate through the first connecting rod, and the second drainage plate is connected with the shell through the second connecting rod.

5. The boiler flue gas filtering device according to claim 1, wherein: the filter device further comprises a drainage block, the drainage block is arranged between the support assembly and the smoke outlet of the shell, an opening in the middle of the drainage block is communicated with the smoke outlet of the shell, and the drainage block faces towards one end of the support assembly and is in an inward arc shape.

6. The boiler flue gas filtering device according to claim 1, wherein: the filter component comprises a box body and a filter material arranged in the box body, wherein the box body is provided with smoke holes on two sides of the filter material respectively.

7. The boiler flue gas filtering device according to claim 1, wherein: the filtering device also comprises a filtering baffle plate, and the filtering baffle plate is arranged on the supporting component and is positioned between the fan and the drainage component.

8. The boiler flue gas filtering device according to claim 1, wherein: the support assembly comprises a columnar fixing frame, a supporting rod and a positioning rod, the fixing frame is positioned in the middle of the shell, the supporting rod is connected between the inner wall of the shell and the fixing frame, the positioning rod is connected on the fixing frame, the filtering assembly is arranged on the supporting rod, and the fan is connected on the positioning rod and positioned in the fixing frame.

9. The boiler flue gas filtering device according to claim 8, wherein: the fan is positioned in the fixed frame, and the fan does not protrude out of the end surface of the fixed frame.

10. The boiler flue gas filtering device according to claim 1, wherein: the filtering device further comprises a slag discharging assembly, the slag discharging assembly is arranged on the shell, the slag discharging assembly comprises a slag discharging pipeline and a sealing cover, one end of the slag discharging pipeline is communicated with the shell, and the sealing cover is connected to the other end of the slag discharging pipeline.

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