CN109012562B

CN109012562B - Packing plate assembly

Info

Publication number: CN109012562B
Application number: CN201811086622.5A
Authority: CN
Inventors: 曹峰
Original assignee: 曹峰
Current assignee: PINGXIANG QUNLI INDUSTRIAL FILLING CO.,LTD.
Priority date: 2018-09-18
Filing date: 2018-09-18
Publication date: 2020-06-02
Anticipated expiration: 2038-09-18
Also published as: CN109012562A

Abstract

The invention discloses a filler plate assembly which comprises a filler supporting plate, wherein a plurality of through holes are formed in the filler supporting plate, filler blocks are arranged in the through holes, the filler blocks are in rotating fit in the corresponding through holes along the horizontal direction, and a limiting mechanism is arranged on the filler supporting plate so that the filler blocks are limited in the corresponding through holes along the axial direction of the through holes. The invention provides a packing plate assembly which is good in waste gas treatment effect, low in maintenance frequency and low in maintenance cost.

Description

Packing plate assembly

Technical Field

The invention relates to the technical field of fittings used in a packed tower, in particular to a packed plate assembly.

Background

The packed tower is one kind of tower equipment, and has inside stuffing layer with corresponding stuffing blocks, liquid contacting surface increased by the stuffing blocks, liquid flowing from top to bottom and descending along the stuffing layer, and gas filled from bottom to top to contact and act with liquid. However, in the practical application process of the existing packed tower, the waste gas often contains a lot of fine impurity particles or waste residues, and the waste gas is easily attached to the inner wall of the hole of the packing layer in the waste gas absorption process, so that the inner wall of the hole of the packing layer is easily scaled, the waste gas treatment efficiency of the packed tower is reduced, and the packing layer needs to be frequently replaced.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art: the packing plate assembly is good in waste gas treatment effect, low in maintenance frequency and low in maintenance cost.

Therefore, one object of the present invention is to provide a filler plate assembly, which includes a filler support plate, wherein the filler support plate is provided with a plurality of through holes, each through hole is internally provided with a filler block, the filler blocks are rotatably fitted in the corresponding through holes along the horizontal direction, and the filler support plate is provided with a limiting mechanism, so that the filler blocks are limited in the corresponding through holes along the axial direction of the through holes.

According to an example of the present invention, the inner cavity of the through hole has a truncated cone shape, and the diameter of the opening at the upper end of the through hole is larger than the diameter of the opening at the upper end of the through hole.

According to an example of the invention, the limiting mechanism comprises an annular cover plate, the upper end of the through hole is provided with a groove matched with the cover plate, the cover plate is connected with the groove in a buckling mode, and the packing block is axially limited in the through hole when the cover plate is assembled in the groove.

According to an example of the present invention, the filler block includes a body, openings are provided at upper and lower ends of the body, at least three rows of flow deflectors are provided in the body, each row of flow deflectors are arranged at intervals along a vertical direction, and an inclination direction of any two adjacent flow deflectors in the same row along a horizontal direction is opposite, so that a splayed mixing channel is formed between any two adjacent flow deflectors in the same row, a small opening end of any mixing channel is arranged opposite to a small opening end of a corresponding mixing channel in the adjacent row of flow deflectors, and a large opening end of any mixing channel is arranged opposite to a large opening end of a corresponding mixing channel in the adjacent row of flow deflectors. The packing block of this structure not only makes the gas-liquid interaction effectual, is difficult for taking place the jam moreover, and its cleaning process only need to pack the two sides of layer board wash simultaneously can, therefore the maintenance process is simple, and the maintenance cost is low at no washing dead angle.

According to an example of the invention, the inner cavity of the through hole is of a cylindrical structure, the limiting mechanism comprises a limiting flange positioned at the lower part of the through hole and a cover plate positioned at the upper part of the through hole, the cover plate is of an annular structure, the upper end of the through hole is provided with a groove matched with the cover plate, the cover plate is in snap fit connection with the groove, and the packing block is axially limited between the cover plate and the limiting flange when the cover plate is assembled in the groove.

According to an example of the invention, the distance between the lower end face of the cover plate and the upper end face of the limiting flange is larger than the thickness of the filling block in the vertical direction, a plurality of tooth sockets are formed in the outer side wall of the filling block in an inscribed mode, teeth matched with the tooth sockets are arranged on the inner side wall of the through hole and close to the cover plate, when the filling block moves upwards along the axial direction of the through hole to abut against the cover plate, the tooth sockets and the teeth are meshed to enable the filling block to be limited in the through hole in the circumferential direction, and when the filling block resets downwards along the axial direction of the through hole to abut against the limiting flange, the tooth sockets and the teeth are disengaged to enable the filling block to be rotatably matched in the through hole in the. Through the design of this structure for the packing piece receives the pressure effect of air current and rises when normal process state, and it is spacing to accomplish the circumference of packing piece through the meshing of tooth and tooth's socket, thereby the intake pipe is closed and is only opened the in-process that spraying system washed, and the packing piece can be along circumferential direction in the through-hole, and cleaning performance is good from this.

According to one example of the invention, the filler block is provided with a central hole, a blade is rotatably fitted in the central hole, and the blade is rotatably fitted in the central hole along the circumferential direction. The blade in the central hole can drive the packing block to rotate in the washing process.

According to one example of the invention, the vanes are mounted in an annular rotor, the inner side wall of the central hole is recessed to form an annular groove for accommodating the annular rotor, and the annular rotor is in rotating fit with the annular groove through a one-way bearing. The one-way bearing can enable the packing blocks to slip with the blades in the normal working state, and the blades drive the packing blocks to rotate when the packing blocks are located at the cleaning positions.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

The technical scheme has the following advantages or beneficial effects: firstly, gas and liquid are good in interaction effect and not easy to block in the packing block, the structure is simple, cleaning and maintenance are utilized, and secondly, the working position and the cleaning position can be switched, so that the packing block rotates when being in the cleaning position, and quick cleaning is facilitated.

Drawings

FIG. 1 is a schematic view of a first configuration of the present invention as installed in a packed column.

FIG. 2 is a schematic view of a second configuration of the present invention packed into a packed column.

FIG. 3 is a schematic view of a third configuration of the present invention as incorporated into a packed column.

FIG. 4 is a schematic view of a fourth configuration of the present invention packed into a packed column.

Fig. 5 is a schematic view of the structure of the spray bars and secondary spray bars in the packing tower of fig. 1-4.

Fig. 6 is a schematic view of the construction of a packing plate assembly according to the present invention.

Fig. 7 is a schematic sectional view of a filler block portion in the present invention.

Fig. 8 is a schematic view of the assembly between the packing pallet and the bowl of the present invention.

Figure 9 is an assembly schematic of a packing block of the present invention installed in a packing shoe.

Figure 10 is another assembly schematic of the packing blocks of the present invention installed in a packing shoe.

Wherein, 1, a cylinder body, 2, a packing layer, 2.1, a packing supporting plate, 2.2, a packing block, 2.2.1, a body, 2.2.2, a guide plate, 2.2.3, a central hole, 3, an upper chamber, 4, a lower chamber, 5, an air inlet pipe, 6, an air outlet, 7, a bracket, 8, a spray rod, 9, a secondary spray rod, 10, an outer pipe, 11, a metering pump, 12, an inner pipe, 13, a pump assembly, 13.1, a straight cylinder, 13.2, a direct drive motor, 13.3, a water inlet sieve hole, 14, a secondary baffle, 15, a protective cover, 16, an inner cylinder, 16.1, a connecting part, 17, a wind shield, 18, an inner air inlet, 19, an arc-shaped guide vane, 20, a secondary packing layer, a 20.1 central channel, 21, a lower nozzle, 22, an isolation cover, 23, an annular groove, 24, a first liquid outlet, 25, a second liquid outlet, 26, a drive mechanism, 27, an annular clamping groove, 28, an annular cavity, 29, a, 31. cover plate 32, limit flange 33, tooth groove 34, tooth 35 and blade.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A packed tower for exhaust gas purification according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the present invention provides a packed tower for waste gas purification, which includes a cylinder 1 having an inner cavity, wherein a packing layer 2 is disposed in the cylinder 1, the packing layer 2 divides the cylinder 1 into an upper chamber 3 and a lower chamber 4, an air inlet pipe 5 for communicating with the lower chamber 4 of the cylinder 1 is disposed on a side wall of the cylinder 1 and is used for communicating with a waste gas source, an air outlet 6 for communicating with the upper chamber 3 is disposed at the top of the cylinder 1, waste gas to be treated enters the lower chamber 4 through the air inlet pipe 5, then enters the upper chamber 3 through the packing layer 2, and finally is discharged out of the cylinder 1 through the air outlet 6. And a spraying system for spraying liquid towards the position of the packing layer 2 is arranged in the upper cavity 3.

The first embodiment is as follows:

as shown in fig. 6, the filler layer 2 includes a filler supporting plate 2.1, an outer edge of the filler supporting plate 2.1 is attached to an inner side wall of the cylinder 1, the filler supporting plate 2.1 is provided with a plurality of through holes for communicating the upper chamber 3 with the lower chamber 4, and each through hole is internally provided with a filler block 2.2.

Preferably, as shown in fig. 8, a ring-shaped slot 27 is arranged on the inner side wall of the cylinder 1 at a position corresponding to the packing support plate 2.1, the outer edge of the packing support plate 2.1 is fitted in the ring-shaped slot 27, and an annular collision cavity 28 is formed between the outer side wall of the packing supporting plate 2.1 and the inner surface of the annular clamping groove 27 in a surrounding manner, the annular collision chamber 28 can be formed by an annular groove on the outer side wall of the packing pallet 2.1, the annular groove and the bottom surface of the annular clamping groove 27 are matched to form an annular collision cavity 28, or the bottom surface of the annular clamping groove 27 is recessed inwards to form an annular groove, the annular groove is matched with the outer side wall of the packing support plate 2.1 in the annular clamping groove 27 to form an annular collision cavity 28, of course, the outer side wall of the filler pallet 2.1 and the groove bottom surface of the ring groove 27 may also be provided with ring grooves, and the two ring grooves are involuted to form a complete ring-shaped collision cavity 28. The utility model discloses a packing layer 2 vibration damping device, including barrel 1, annular collision chamber 28, packing layer 2, barrel 1, annular collision chamber 28, be equipped with at least one vibrations ball 29 in the annular collision chamber 28, be equipped with a plurality of archs 30 in the annular collision chamber 28, when vibrations ball 29 rotates along annular collision chamber 28 the vibrations ball 29 strikes with arch 30 so that packing layer 2 vibrates, be equipped with on the barrel 1 and be used for driving vibrations ball 29 along annular collision chamber 28 pivoted air feed branch pipe and exhaust branch pipe, air feed branch pipe and exhaust branch pipe communicate with annular collision chamber 28 respectively. The exhaust branch pipe is communicated with the external environment, and the air supply branch pipe is communicated with an external air pump.

Preferably, as shown in fig. 7, the filler block 2.2 includes a main body 2.2.1, the upper and lower ends of the main body 2.2.1 are provided with openings, at least three rows of flow deflectors 2.2.2 are arranged in the main body 2.2.1, each row of flow deflectors 2.2.2 is arranged at intervals along the vertical direction, the inclination directions of any two adjacent flow deflectors 2.2.2 in the same row of flow deflectors 2.2.2 along the horizontal direction are opposite, that is, the upper end of the first flow deflector 2.2.2 in the first row is inclined towards the left along the horizontal direction, the upper end of the second flow deflector 2.2.2 is inclined towards the right along the horizontal direction, and so on, so that any two adjacent two flow deflectors 2.2.2.2 in the same row of flow deflectors 2.2 form a splayed mixing channel, the widths of the two ends of the mixing channel are unequal, that the opening width of one end of the mixing channel is larger than the opening of the other end, and the small opening of any mixing channel is opposite to the small opening of the mixing channel corresponding to the small opening of the adjacent flow deflector 2.2., the large opening end of any mixing channel is arranged opposite to the large opening end of the corresponding mixing channel in the adjacent row of flow guide plates 2.2.2. Therefore, when the air flow passes through the packing block 2.2 from bottom to top and the liquid passes through the packing block from top to bottom, the air flow can be fully contacted, and the contact area of the gas and the liquid is increased.

As shown in fig. 3, the center of the packing layer 2 is arched upward in the vertical direction to form an arc-shaped structure. The structure of the filler layer 2 protruding upwards can enable liquid to flow towards the inner side wall of the cylinder body 1 along the filler layer 2.

As shown in fig. 6, the through holes on the packing support plate 2.1 are in a hexagonal prism structure, that is, the cross-sectional shapes of any positions on the central axis of the through holes are regular hexagons, and the area of the through holes on the upper end surface of the packing support plate 2.1 is larger than the area of the through holes on the lower end surface of the packing support plate 2.1. Through the design of the hexagonal prism structure, the filler blocks 2.2 in the through holes can be limited in the through holes along the circumferential direction and cannot fall down from the through holes. The through hole is in a hexagonal prism structure, which means that the geometry of the part cured after the through hole is filled is in a hexagonal prism, namely a prism with six edges.

Preferably, the packing blocks 2.2 are rotatably fitted in the corresponding through holes in the horizontal direction, and the packing support plate 2.1 is provided with a limiting mechanism, so that the packing blocks 2.2 are limited in the corresponding through holes in the axial direction of the through holes.

The inner cavity of the through hole on the packing support plate 2.1 is of an inverted round platform structure, namely the cross section of any position on the central axis of the through hole is circular, and the area of the through hole on the upper end face of the packing support plate 2.1 is larger than that of the through hole on the lower end face of the packing support plate 2.1. Through the design of the round platform structure, the filler blocks 2.2 in the through holes can be matched in the through holes in a circumferential rotating mode, and the filler blocks cannot fall down from the inside of the through holes. The through hole is in a circular truncated cone structure, namely the geometric structure of a part solidified after the through hole is filled is in a circular truncated cone, and the upper end surface of the circular truncated cone is larger than the lower end surface of the circular truncated cone. The limiting mechanism comprises an annular cover plate 31, a groove matched with the cover plate 31 is formed in the upper end of the through hole, the cover plate 31 is connected with the groove in a buckling mode, and the packing block 2.2 is axially limited in the through hole when the cover plate 31 is assembled in the groove.

The inner cavity of the through hole on the packing support plate 2.1 is of a cylindrical structure, the limiting mechanism comprises a limiting flange 32 positioned at the lower part of the through hole and a cover plate 31 positioned at the upper part of the through hole, the cover plate 31 is of an annular structure, a groove matched with the cover plate 31 is formed in the upper end of the through hole, the cover plate 31 is connected with the groove in a buckling mode, and when the cover plate 31 is assembled in the groove, the packing block 2.2 is axially limited between the cover plate 31 and the limiting flange 32. The distance between the lower end face of the cover plate 31 and the upper end face of the limiting flange 32 is larger than the thickness of the packing block 2.2 in the vertical direction, a plurality of tooth sockets 33 are formed in the outer side wall of the packing block 2.2 in an inscribed mode, teeth 34 matched with the tooth sockets 33 are arranged on the inner side wall of the through hole and close to the cover plate 31, when the packing block 2.2 moves upwards along the axial direction of the through hole to abut against the cover plate 31, the tooth sockets 33 and the teeth 34 are meshed to enable the packing block 2.2 to be limited in the through hole in the circumferential direction, and when the packing block 2.2 is reset downwards along the axial direction of the through hole to abut against the limiting flange 32, the tooth sockets 33 and the teeth 34 are separated to enable the packing block 2.2 to be matched in the through hole in a rotating.

A central hole 2.2.3 is formed in the packing block 2.2, a blade 35 is rotationally matched in the central hole 2.2.3, and the blade 35 is rotationally matched in the central hole 2.2.3 along the circumferential direction.

The blades 35 are installed in an annular rotor, the inner side wall of the central hole 2.2.3 is concave inwards to form an annular groove for accommodating the annular rotor, and the annular rotor is in running fit with the annular groove through a one-way bearing.

Example two:

the spraying system comprises a support 7 and a spraying rod 8, wherein the spraying rod 8 is arranged in the cylinder body 1 through the support 7 and is suspended above the packing layer 2.

And a driving mechanism 26 for driving the support 7 is arranged on the inner side wall of the cylinder body 1, and the driving mechanism 26 drives the support 7 and the spray rod 8 on the support to move along the vertical direction. The driving mechanism 26 may be a driving cylinder, which drives the support to move up and down by the movement of a piston rod in the cylinder, or a motor which drives a screw rod to rotate so as to enable the screw rod to be in threaded fit with a nut on the support, thereby driving the support 7 to move up and down, or any conventional lifting technology in the prior art such as a hydraulic rod may be used. Of course, be equipped with on the inside wall of barrel 1 and be used for the guide runner, support 7 sliding fit in the spout, the guide effect through the spout makes support lift process mild.

Furthermore, the middle position of the spray rod 8 is matched with the support 7 through a rotating shaft in a rotating mode, a plurality of spray holes are distributed in the lower end face of the spray rod 8, and pipelines for supplying liquid to the spray holes are arranged in the spray rod 8. Certainly, the spray rod 8 can rotate and supply liquid, so that a connecting pipeline is arranged in the rotating shaft, and a liquid inlet pipe fixed on the support 7 is communicated with a pipeline on the spray rod through the connecting pipeline in the rotating shaft in the traditional method. In addition, to make the spray rod 8 rotate, a driver is required, and the driver can adopt an external driving force, for example, a driving motor is installed on the bracket or the external driver is driven by a driving member such as a belt, a chain and a gear. The driver can also be a built-in driving force, namely, the reaction force generated by spraying liquid through the spraying holes is utilized to drive the spraying rod 8 to rotate, specifically, a plurality of driving nozzles which are obliquely arranged are arranged on the spraying rod 8, the jet flow direction of the driving nozzles is arranged along the vertical direction and is inclined along the horizontal direction, and the driving nozzles are directly communicated with a pipeline in the spraying rod 8 or are communicated through a flow regulating valve.

Furthermore, as shown in fig. 5, one end of the spray rod 8 is provided with a second-stage spray rod 9, the second-stage spray rod 9 is rotatably fitted on the spray rod 8, the lower end face of the second-stage spray rod 9 is provided with a plurality of spray holes, and the second-stage spray rod 9 is provided with a plurality of driving nozzles obliquely arranged for driving the second-stage spray rod 9 to rotate. The jet flow direction of the driving nozzle is arranged along the vertical direction and is inclined along the horizontal direction.

The direction of the liquid sprayed from the spraying holes is adjustable.

Specifically, the spray holes are respectively provided with a nozzle, and the spray angle of the nozzle is adjustable.

The spraying holes are respectively provided with a hose, and the hoses generate disordered shaking along with the fluctuation of liquid sprayed out of the spraying holes.

The axis of the spraying holes in the spraying holes points to the corresponding flat plates, the flat plates are respectively installed on the corresponding spraying rods 8 or the corresponding second-level spraying rods 9, namely, if the spraying holes are installed in the spraying rods 8, the spraying holes in the spraying rods 8 respectively correspond to one flat plate, if the spraying holes are installed in the second-level spraying rods 9, the spraying holes in the second-level spraying rods 9 respectively correspond to one flat plate, if the spraying holes are installed in the spraying rods 8 and the second-level spraying rods 9, the spraying holes in the spraying rods 8 and the second-level spraying rods 9 respectively correspond to one flat plate, one end of each flat plate is connected with the corresponding spraying rods 8 and/or the corresponding second-level spraying rods 9 through movable connectors, and therefore the installation angle of each flat plate is adjustable.

The pipeline in the spray rod 8 is communicated with an external liquid supply pipe (not shown in the figure), and preferably, a circulating pipeline is further arranged on the cylinder body 1.

Specifically, as shown in fig. 4, the circulation pipeline is an external circulation pipeline, the external circulation pipeline includes an outer pipe 10 disposed outside the cylinder 1, a lower end of the outer pipe 10 is communicated with a bottom of an inner cavity of the cylinder 1, an upper end of the outer pipe 10 penetrates through a side wall of the cylinder 1 and is communicated with a pipeline on the spray rod 8, and a metering pump 11 for driving liquid in the outer pipe 10 to be pumped from the lower end to the upper end is disposed on the outer pipe 10. Of course, the outer tube 10 may also be provided with various detectors and valves, such as a pressure gauge, a flow meter, a water temperature gauge, a pressure release valve, etc.

As shown in fig. 1, the circulation pipeline is an internal circulation pipeline, the internal circulation pipeline includes an inner pipe 12 and a pump assembly 13 arranged in the cylinder 1, the pump assembly 13 is arranged at the bottom of the inner cavity of the cylinder 1, the lower end of the inner pipe 12 is communicated with the output end of the pump assembly 13, and the upper end of the inner pipe 12 extends to be communicated with a pipeline in the spray rod 8.

Further, the pump assembly 13 includes a straight cylinder 13.1, a direct drive motor 13.2 is arranged in the straight cylinder 13.1, a stator of the direct drive motor 13.2 is fixedly embedded on an inner side wall of the straight cylinder 13.1, a rotor of the direct drive motor 13.2 is rotatably fitted in the stator, blades are fixed in the rotor, the inner tube 12 is communicated with an inner cavity corresponding to an output end of the direct drive motor 13.2 of the straight cylinder 13.1, that is, as shown in the figure, the inner tube 12 is communicated with an inner cavity above the direct drive motor 13.2, a water inlet mesh 13.3 is arranged below the direct drive motor 13.2 along a vertical direction on an outer side wall of the straight cylinder 13.1, and an inner cavity of the cylinder 1 is communicated with the inner cavity of the straight cylinder 13.1 through the water inlet mesh 13.3.

As shown in fig. 2 or 3, a secondary baffle 14 is arranged below the water inlet sieve hole 13.3 outside the straight cylinder 13.1, and is used for preventing impurity particles deposited at the bottom of the cylinder 1 from entering the water inlet sieve hole 13.3 along with water flow. The outer portion of the straight cylinder 13.1, located on the water inlet sieve holes 13.3, is provided with a protective cover 15, the protective cover 15 is of an inverted bowl-shaped structure, and the opening direction of the protective cover 15 faces downwards.

Example three:

an inner barrel 16 is arranged in the lower cavity chamber 4, the upper part of the inner barrel 16 is outwards turned along the radial direction to form a connecting part 16.1 with the diameter larger than that of the inner barrel 16, and the connecting part 16.1 is connected with the inner side wall of the barrel 16. A wind shield 17 is arranged below the inner cylinder 16, a gap is reserved between the wind shield 17 and the lower end face of the inner cylinder 16, so that an inner air inlet 18 is formed by surrounding the lower end face of the inner cylinder 16 and the upper end face of the wind shield 17, a space is reserved between the outer edge of the wind shield 17 and the inner side wall of the cylinder 1, and the wind shield 17 is fixedly connected with the cylinder 1. And as shown in fig. 1-4, the connection part of the air inlet pipe 5 and the cylinder 1 is located above the inner air inlet 18 along the vertical direction, the axis of the air inlet pipe 5 is tangent to one of the concentric circles of the axis of the cylinder 1, namely, the air inlet pipe 5 sends in the waste gas along the tangential direction of the inner cavity of the cylinder 1, so that the waste gas sent in by the air inlet pipe 5 flows in the cylinder 1 in a spiral line from top to bottom, namely, whirlwind is generated, and therefore, particles of residues in the waste gas are thrown onto the inner side wall of the cylinder 1 under the action of centrifugal force, and enter the lower part of the wind shield 17 through the interval left between the outer edge of the wind shield 17 and the inner side wall of the cylinder, and.

Preferably, a plurality of arc-shaped guide blades 19 are arranged on the inner air inlet 18, the arc-shaped guide blades 19 are sequentially arranged at intervals along the circumferential direction, the upper ends of the arc-shaped guide blades 19 are fixedly connected with the inner cylinder 16, the lower ends of the arc-shaped guide blades 19 are fixedly connected with the wind shield 17, and the airflow outside the inner cylinder 16 is guided by the arc-shaped guide blades 19 on the inner air inlet 18 to form cyclone inside the inner cylinder 16. Thereby increasing the path length of the exhaust gas in the inner tube 16, which is beneficial to prolonging the retention time of the exhaust gas in the inner tube 16.

As an improvement, the inner sidewall of the inner cylinder 16 is coated with a catalyst layer for decomposing a part of harmful components in the exhaust gas.

Preferably, at least one secondary packing layer 20 is disposed in the inner drum 16, and a packing material, such as a porous ceramic packing material, is disposed in the secondary packing layer 20. As can be seen from comparison between fig. 1-3 and fig. 4, the secondary packing layer 20 may be one or more layers in the axial direction, and in addition, the secondary packing layer 20 may be an annular structure extending continuously in the circumferential direction, and the secondary packing layer 20 adopting the continuous annular structure not only has good filtering effect, but also has an outer edge connected with the inner side wall of the inner cylinder 16 as shown in fig. 1, and a central channel 20.1 is provided at the central position of the secondary packing layer 20 for generating multiple pressure difference changes. Of course, as shown in fig. 4, a plurality of individual block-shaped structures may be provided, and a plurality of block-shaped secondary fillers are arranged at intervals along the circumferential direction, and the secondary filler with an individual block-shaped structure can effectively avoid the situation that the secondary filler layer 20 is blocked. The gas-water contact time can be increased by the secondary packing layer 20.

As shown in fig. 2 and 3, the upper end of the straight tube 13.1 extends upward in the vertical direction into the inner tube 16 and above the secondary packing layer 20. The part of the upper end of the straight cylinder 13.1, which is positioned above the secondary filler layer 20, is provided with a plurality of lower nozzles 21, and the lower nozzles 21 are communicated with the inner cavity of the straight cylinder 13.1.

Example four:

the wind shield 17 is arranged below the isolation cover 22 in the barrel 1, the isolation cover 22 is of a horn-shaped structure with a small upper part and a large lower part, the lower end of the isolation cover 22, namely a large opening end, is fixedly connected with the inner side wall of the barrel 1, and the upper end of the isolation cover 22, namely a small opening end, is arranged below the wind shield 17. When the packed tower is in a working state, the liquid level of the effusion in the lower cavity 4 of the cylinder 1 is positioned above the isolation cover 22, namely, the isolation cover 22 is immersed in the effusion. As shown in fig. 1-4, an annular groove 23 with an upward opening direction is formed between the outer side wall of the isolation cover 22 and the inner side wall of the cylinder 1, and a first liquid discharge port 24 communicated with the annular groove 23 is arranged on the outer side wall of the cylinder 1. And a second liquid outlet 25 is formed at the bottom of the cylinder body 1.

The term outer rim as described above refers to the outer contour of the corresponding component. The liquid may be clear water or a solution with a chemical agent.

It should be noted that, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.

Claims

1. A packing sheet assembly characterized by: the packing device comprises a packing supporting plate (2.1), wherein a plurality of through holes are formed in the packing supporting plate (2.1), a packing block (2.2) is arranged in each through hole, the packing blocks (2.2) are in rotating fit in the corresponding through holes along the horizontal direction, and a limiting mechanism is arranged on the packing supporting plate (2.1) so that the packing blocks (2.2) are limited in the corresponding through holes along the axial direction of the through holes;

the inner cavity of the through hole is of a circular truncated cone-shaped structure, and the diameter of the orifice at the upper end of the through hole is larger than that of the orifice at the upper end of the through hole;

the limiting mechanism comprises an annular cover plate (31), a groove matched with the cover plate (31) is formed in the upper end of the through hole, the cover plate (31) is connected with the groove in a buckling mode, and the packing block (2.2) is axially limited in the through hole when the cover plate (31) is assembled in the groove;

the packing block (2.2) comprises a body (2.2.1), openings are formed in the upper end and the lower end of the body (2.2.1), at least three rows of flow guide plates (2.2.2) are arranged in the body (2.2.1), each row of flow guide plates (2.2.2) is arranged at intervals along the vertical direction, the inclination directions of any two adjacent flow guide plates (2.2.2) in the same row of flow guide plates (2.2.2) along the horizontal direction are opposite, so that a splayed mixing channel is formed between any two adjacent flow guide plates (2.2.2) in the same row respectively, the small opening end of any mixing channel is arranged opposite to the small opening end of the corresponding mixing channel in the adjacent row of flow guide plates (2.2.2), and the large opening end of any mixing channel is arranged opposite to the large opening end of the corresponding mixing channel in the adjacent row of flow guide plates (2.2.2).

2. The packing sheet assembly of claim 1 wherein: the inner chamber of through-hole is cylindrical structure, stop gear is including being located limit flange (32) of through-hole lower part and apron (31) that are located through-hole upper portion, apron (31) are the loop configuration, the upper end of through-hole is equipped with and laps (31) matched with recess, just apron (31) are connected with the recess buckle, when apron (31) assemble in the recess packing piece (2.2) are spacing between apron (31) and limit flange (32) along the axial.

3. A packing sheet assembly in accordance with claim 2 wherein: the distance between the lower end face of the cover plate (31) and the upper end face of the limiting flange (32) is larger than the thickness of the packing block (2.2) in the vertical direction, a plurality of tooth sockets (33) are formed in the outer side wall of the packing block (2.2) in an inscribed mode, teeth (34) matched with the tooth sockets (33) are arranged on the inner side wall of the through hole and close to the cover plate (31), when the packing block (2.2) moves upwards along the axial direction of the through hole to abut against the cover plate (31), the tooth sockets (33) and the teeth (34) are meshed to enable the packing block (2.2) to be limited in the through hole in the circumferential direction, and when the packing block (2.2) is reset downwards along the axial direction of the through hole to abut against the limiting flange (32), the tooth sockets (33) and the teeth (34) are disengaged to enable the packing block (2.2) to be matched in the through hole in a rotating mode.

4. A packing sheet assembly in accordance with claim 3 wherein: a center hole (2.2.3) is formed in the packing block (2.2), a blade (35) is rotationally matched in the center hole (2.2.3), and the blade (35) is rotationally matched in the center hole (2.2.3) along the circumferential direction.

5. The packing sheet assembly of claim 4 wherein: the blades (35) are arranged in an annular rotor, the inner side wall of the central hole (2.2.3) is inwards concave to form an annular groove for accommodating the annular rotor, and the annular rotor is in running fit with the annular groove through a one-way bearing.