Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a vertical square large-air-volume chemical washing treatment device, which uses the kinetic energy of part of the waste gas after washing to compress the part of the waste gas to form compressed gas, and then the compressed gas acts on the droplets ejected from the nozzles, so that the droplets are further scattered by the gas to form finer droplets, thereby improving the purification speed, further realizing the purpose of washing with large air volume, and recovering the kinetic energy of part of the waste gas to realize the recycling of energy.
The invention provides a vertical square large-air-volume chemical washing treatment device, which comprises a washing tower, wherein a water spraying device for spraying washing liquid and a filling layer arranged at the lower end of the water spraying device are arranged in the washing tower;
Different from the traditional waste gas washing tower, the water spraying device comprises a plurality of nozzles, a part of the exhaust gas pipeline is led into the washing tower from a bypass pipeline, and a compressor is arranged on the bypass pipeline, so that compressed gas can act on washing liquid sprayed by the nozzles;
the purpose of the arrangement is that the waste gas after washing has a certain kinetic energy, after a part of waste gas is led into the compressor through the bypass pipeline, the kinetic energy is further applied to the part of waste gas, and then the waste gas is led into the washing liquid sprayed by the nozzle, so that the washing liquid is further scattered, the spraying area of the washing liquid can be increased, and the liquid drop size of the washing liquid is reduced.
In some examples of the present invention, a filter for filtering the washed exhaust gas to prevent impurities in the exhaust gas from affecting the operation of the compressor and a fan for introducing the filtered exhaust gas into the compressor are further provided on the bypass line.
In some examples of the invention, a pressure gauge is further arranged on the bypass branch pipe and is used for detecting the pressure of the compressed gas, so that the operation efficiency of the compressor is controlled, and the phenomenon that the extraction operation of the waste gas in the washing tower is influenced due to the overlarge pressure of the compressed gas is avoided.
In some examples of the invention, a pressure relief valve is also arranged on the bypass pipeline, and when the pressure is too high, the pressure relief valve releases part of the pressure to ensure the normal operation of the washing tower.
In some examples of the invention, the nozzle comprises a liquid separation screw body and a gas separation screw body extending along the screw direction of the liquid separation screw body, wherein an internal rotation surface of the gas separation screw body corresponds to an external rotation surface of the liquid separation screw body with a gap formed between the internal rotation surface and the external rotation surface, an air passage which is used for introducing compressed gas and extends along the screw direction of the gas separation screw body is formed on the gas separation screw body, the side part of the air passage extends to be connected with the internal rotation surface to form a compressed gas outlet, and the compressed gas outlet also forms a screw shape along with the extension of the air passage;
the purpose of the arrangement is that the nozzle in the waste gas washing tower needs to have larger strength to deal with long-time operation, if the compressed gas channel is arranged on the basis of the traditional spiral nozzle, the strength of the nozzle is affected, so that the scheme introduces the gas-distributing spiral body on the basis of the traditional spiral nozzle, and the gas-distributing spiral body is provided with the air channel for the compressed air to flow in, so that the compressed air can travel along the spiral direction and can be sprayed out through the gap to act on the washing liquid.
In some examples of the invention, the end of the bypass pipeline extending into the washing tower is divided into a plurality of branches, and the branches are communicated with air passages of the nozzles in one-to-one correspondence, namely compressed air is distributed at each nozzle in one-to-one correspondence.
In some examples of the invention, a plurality of flow dividing plates are arranged in the air passage and distributed along the spiral direction of the air passage, and the flow dividing plates are used for guiding the air in the air passage to change the direction of the compressed air to the gap and to guide the compressed air to the liquid under the guiding action of the side walls of the two spirals at the gap so as to disperse the liquid drops.
In some examples of the invention, the liquid separation screw and the gas separation screw are connected by a screw, and the liquid separation screw and the gas separation screw are sealed by a sealing piece.
In some examples of the invention, the nozzle further comprises an inner column casing connected to the open end of the liquid separation screw body and an outer column casing connected to the open end of the gas separation screw body, wherein the inner column casing penetrates through the outer column casing, a compressed air inlet is formed in the outer column casing, and the branch is communicated with the air passage through the compressed air inlet;
the advantage of this arrangement is that: the whole nozzle still has the outward appearance of traditional structure along, compact structure even only need to process current nozzle, still extra setting divides gas spiral body and outer cylinder just can realize the operation.
In some examples of the invention, the outer barrel is of nut-like construction and the end of the inner barrel extending out of the outer barrel is threaded;
the advantage of this arrangement is that the outer cylinder replaces the nut on a conventional nozzle, and the threads follow the connecting threads in a conventional configuration, so that other configurations in the sprinkler can be connected to the nozzle without modification.
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.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings may be obtained according to these drawings without the need for inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a vertical square large-air-volume chemical washing treatment device according to an embodiment of the invention;
FIG. 2 is a front view of a nozzle in an embodiment of the invention;
FIG. 3 is a cross-sectional view of a nozzle at A-A in an embodiment of the invention;
FIG. 4 is a schematic view of the internal rotation surface of the gas separation spiral at a partial section in an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a droplet group ejected from a conventional spiral nozzle;
FIG. 6 is a schematic cross-sectional view of the shape of a droplet population ejected by a nozzle in an embodiment of the invention;
FIG. 7 is a top view of a nozzle in an embodiment of the invention;
FIG. 8 is a partial cross-sectional view of a nozzle at B-B in an embodiment of the invention;
FIG. 9 is a partial cross-sectional view of a nozzle at C-C in an embodiment of the invention.
Reference numerals illustrate:
A scrubber 100, a packing layer 110, a flue gas inlet 120, a flue gas outlet 130, a liquid storage layer 140, an air chamber 150, a mist eliminator layer 160;
The water spraying device 200, the nozzle 210, the liquid separating screw 211, the external rotating surface 211-1, the gas separating screw 212, the internal rotating surface 212-1, the connecting section 212-1a, the inclined section 212-1b, the air passage 212-2, the compressed gas outlet 212-3, the splitter plate 212-4, the gap 213, the screw 214, the sealing element 215, the plug 216, the internal cylinder 217, the screw 217-1, the external cylinder 218, the compressed air inlet 218-1, the flat head screw 219, the water suction pump 220 and the pipeline 230;
A dosing device 300, an automatic dosing machine 310, a cartridge 320, a level sensor 330;
An exhaust line 400;
suction fan 500;
Auxiliary water spraying device 600, bypass pipeline 610, air compressor 620, filter 630, fan 640, pressure gauge 650, and pressure relief valve 660.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Referring to fig. 1 to 9, a vertical square large-air-volume chemical washing treatment device according to an embodiment of the invention is described.
Referring to fig. 1, a schematic diagram of a vertical square large-air-volume chemical washing treatment device is shown, the chemical washing treatment device comprises a washing tower 100, the washing tower 100 is arranged vertically, a water spraying device 200 for spraying washing liquid and a filling layer 110 arranged at the lower end of the water spraying device 200 are arranged in the washing tower 100, an exhaust gas inlet 120 for introducing exhaust gas is arranged at the lower part of the washing tower 100, and an exhaust gas outlet 130 communicated with an exhaust gas pipeline 400 is arranged at the upper part of the washing tower 100;
Specifically, referring to fig. 1, the scrubber 100 is in a vertical structure, and has a liquid storage layer 140, an air chamber 150, two stacked filling layers 110, a demisting layer 160, and the like, wherein the water spraying device 200 can pump the liquid in the liquid storage layer 140 to the nozzle 210 to be sprayed by the nozzle 210, the air chamber 150 is provided with an exhaust gas inlet 120, the exhaust gas enters the scrubber 100 from the air chamber, the filling layers 110 are filled with a fence-shaped structure with a larger specific surface area, the spraying direction of the nozzle 210 is directed to the filling layers 110, and the demisting layer 160 is provided with a demisting device for removing water vapor in the exhaust gas.
With continued reference to fig. 1, the water spraying device 200 further includes a pipe 230 and a water pump 220, wherein the water pump 220 is used for pumping out the liquid in the liquid storage layer 140, and delivering the liquid to the nozzle 210 through the pipe 230.
Referring to fig. 1, the chemical washing treatment apparatus further includes a chemical adding device 300, the chemical adding device 300 is used for adding a chemical solution into the liquid in the liquid storage layer 140 to form a washing solution, the chemical adding device 300 includes an automatic chemical adding machine 310, etc., an input end of the automatic chemical adding machine 310 is connected with a storage tube 320, an output end of the automatic chemical adding machine is communicated with the liquid storage layer 140, the chemical adding device 300 further includes a liquid level sensor 330, and the liquid level sensor 330 is disposed in the liquid storage layer 140 and electrically connected with the automatic chemical adding machine 310 to obtain a liquid depth, thereby determining a chemical adding amount.
With continued reference to fig. 1, the exhaust gas pipe 400 is connected with an exhaust fan 500, and the exhaust fan 500 generates negative pressure in the scrubber 100 to enable the exhaust gas to run from bottom to top, thereby fully contacting with the washing liquid sprayed in the filling layer 110 and discharging the washed exhaust gas.
With continued reference to fig. 1, the water spraying device 200 includes a plurality of nozzles 210, the chemical scrubbing treatment apparatus further includes an auxiliary water spraying device 600, the auxiliary water spraying device 600 includes a bypass pipe 610 partially extending from the exhaust pipe 400, the bypass pipe 610 is introduced into the scrubbing tower 100, and an air compressor 620 is disposed on the bypass pipe 610, so that compressed gas can act on the scrubbing liquid sprayed from the nozzles 210;
Namely, the waste gas in the waste gas pipeline 400 is divided into two paths, one path is discharged, and the other path enters the washing tower 100 to act on the washing liquid after being compressed, so that the formed liquid drop of the washing liquid is smaller in diameter and larger in area, and meanwhile, the kinetic energy of part of waste gas can be utilized, which is equivalent to recycling part of energy, so that the washing efficiency of the washing tower 100 is higher, and the effect of large air quantity is realized.
With continued reference to fig. 1, the bypass pipe 610 is further provided with a filter 630 and a fan 640, the fan 640 is located between the filter 630 and the compressor 620, the filter 630 is used for filtering the washed exhaust gas, preventing impurities from blocking the compressor 620, and the fan 640 is used for introducing the filtered exhaust gas into the compressor 620.
With continued reference to fig. 1, the bypass pipeline 610 is further provided with a pressure gauge 650, where the pressure gauge 650 is used for detecting the pressure of the compressed gas, and the pressure gauge 650 is specifically disposed at a section of the compressor 620 away from the fan 640, so as to detect the pressure of the gas, and prevent the excessive pressure from interfering with the normal discharge of the waste gas in the scrubber 100.
With continued reference to fig. 1, the bypass pipe 610 is further provided with a relief valve 660, so that when the pressure is too high, with continued reference to fig. 1, a part of the pressure is relieved, thereby realizing pressure stabilization.
Referring to fig. 2, which is a front view of the nozzle 210, the nozzle 210 includes a liquid separation screw 211 and a gas separation screw 212 extending along with the screw direction of the liquid separation screw 211, wherein an inner rotation surface 212-1 of the gas separation screw 212 corresponds to an outer rotation surface 211-1 of the liquid separation screw 211 and a gap 213 is formed between the inner rotation surface 212-1 and the outer rotation surface, and the gap 213 extends to be connected with the upper end surfaces of the gas separation screw 212 and the liquid separation screw 211;
Referring to fig. 3, which is a cross-sectional view of the nozzle 210 at A-A, the gas separation screw 212 is provided with a gas channel 212-2 (the spiral structure of the gas channel 212-2 is not shown in the figure) for introducing compressed gas and extending along the spiral direction of the gas separation screw 212, one end of the bypass pipeline 610 extending into the washing tower 100 is divided into a plurality of branches, the branches are in one-to-one correspondence with the gas channels 212-2 of the nozzles 210 (the communicating manner is not shown in the figure), and the side part of the gas channel 212-2 extends to be connected with the internal rotation surface 212-1 to form a compressed gas outlet 212-3 on the internal rotation surface 212-1;
Referring to FIG. 4, a schematic view of the gas separation screw 212 with the inner rotation surface 212-1 at a portion of the section is shown, and the compressed gas outlet 212-3 is also spiral along with the extension of the gas passage 212-2.
With continued reference to fig. 3, the inner rotating surface 212-1 includes a connecting section 212-1a that is in contact with the outer rotating surface 211-1 and an inclined section 212-1b that forms a gap 213 between the connecting section and the outer rotating surface 211-1, wherein the gap 213 is the gap 213 set forth in the previous paragraph, the gap 213 is used for spraying compressed air, and the compressed air outlet 212-3 is also disposed on the inclined section 212-1 b.
With continued reference to FIG. 3, a plurality of flow dividing plates 212-4 are disposed within the air passage 212-2, and the plurality of flow dividing plates 212-4 are distributed along the spiral direction of the air passage 212-2.
Compare this nozzle 210 to a conventional spiral nozzle:
Referring to fig. 5, a cross-sectional view of a droplet group ejected from a conventional spiral nozzle is shown, wherein the droplet group has a spiral structure, and the cross-sectional shape is shown by g;
For the operation of the present nozzle 210, as shown in fig. 3, the compressed gas travels in the spiral direction a in the air channel 212-2, is guided by the intermediate flow dividing plate 212-4 to travel in the direction b until entering the gap 213, is guided by the side wall (the inclined section 212-1b and the corresponding outer spiral surface 211-1) at the gap 213, is ejected basically in the direction c, meets with the liquid drop from the direction d, and is further dispersed by the gas and scattered in the range of M;
thus forming the cross-sectional shape of the droplet population of fig. 6, shown by G, which is relatively large in area compared to G.
With continued reference to fig. 3, the connection between the liquid separation screw 211 and the gas separation screw 212 is further illustrated, which are connected by a plurality of screws 214, the screws 214 are distributed on each layer of screw, so that the liquid separation screw 211 and the gas separation screw 212 have a stable connection, and the liquid separation screw 211 and the gas separation screw 212 are sealed by a sealing element 215;
specifically, the screw 214 penetrates the joint section 212-1a and the external rotation surface 211-1 corresponding to the joint section 212-1a, two sealing elements 215 are arranged between the joint section 212-1a and the external rotation surface 211-1, the sealing elements 215 are distributed between the joint section 212-1a and the external rotation surface 211-1 in a spiral manner, and the screw 214 is arranged between the two.
With continued reference to fig. 3, a plug 216 is also provided at the head of the screw 214 to seal the screw 214.
Referring to fig. 7-8, which are top views and partial cross-sectional views of the nozzle 210 at the position B-B, the nozzle 210 further includes an inner cylinder 217 connected to the open end of the liquid separation screw 211 and an outer cylinder 218 connected to the open end of the gas separation screw 212, the inner cylinder 217 penetrates the outer cylinder 218, a compressed air inlet 218-1 is formed in the outer cylinder 218, and the branch is communicated with the air channel 212-2 through the compressed air inlet 218-1.
Referring to fig. 9, which is a partial cross-sectional view at C-C, the inner post 217 and outer post 218 are also connected by grub screws 219.
With continued reference to FIG. 1, the outer barrel 218 is nut-like in configuration and the nozzle 210 is operated by a wrench acting on the nut-like configuration, and the end of the inner barrel 217 extending out of the outer barrel 218 is provided with threads 217-1, the threads 217-1 being adapted to connect with the pipe 230.
Other components of the chemical scrubbing apparatus according to embodiments of the present invention, such as the fill layer 110, the mist eliminator 160, the automatic applicator 310, the level sensor 330, the suction fan 500, the air compressor 620, the filter 630, the blower 640, the pressure gauge 650, the pressure relief valve 660, etc., and the operation thereof, are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.