CN108283850B - Gas-liquid contact device - Google Patents
Gas-liquid contact device Download PDFInfo
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- CN108283850B CN108283850B CN201810124391.6A CN201810124391A CN108283850B CN 108283850 B CN108283850 B CN 108283850B CN 201810124391 A CN201810124391 A CN 201810124391A CN 108283850 B CN108283850 B CN 108283850B
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
Abstract
The embodiment of the invention discloses a gas-liquid contact device, which comprises: the number of the twisted wire brushes is the same as that of the pipelines of the porous carrier; the twisted wire brush is filled in the pipeline of the porous carrier and is used for adsorbing gas and liquid; the porous carrier is used for encapsulating gas and liquid which enter the pipeline simultaneously so as to realize gas-liquid contact. The embodiment of the invention realizes the effects of lower pressure drop, difficult liquid blockage and uniform liquid distribution in the gas-liquid contact process, and the gas-liquid contact device has lower cost and lower structural complexity for industrial operation with large air volume and high liquid quantity.
Description
Technical Field
The embodiment of the invention relates to the technical field of industry, in particular to a gas-liquid contact device.
Background
Absorption, dust removal, temperature reduction and desorption are realized by contacting gas flow and liquid phase, the traditional chemical unit operation means is adopted, and the mass transfer efficiency between gas and liquid in the operation processes often depends on the turbulence degree of a gas-liquid contact surface and a highly strengthened interface which are reasonably designed.
In the existing gas flow and liquid phase contact equipment, the packed tower is the oldest and most mature method for realizing full contact of gas and liquid, and the method is to carry out gas-liquid contact in a packed bed layer and carry out gas-liquid contact mass transfer on the wet surface of the packing. At present, the integrally-packed packing with reasonable design can realize good gas-liquid contact in a smaller bed height, but the single-layer bed height of the packed tower has certain limitation. If the single-layer bed layer is too high, the phenomenon of uneven gas-liquid contact in the bed layer is easy to occur, namely, liquid tends to flow towards the tower wall, so that the liquid in the middle of the single-layer bed layer is reduced, the phenomenon of dry cone is generated, and the effect of gas-liquid contact is greatly reduced. In order to solve the problem of dry cone, the traditional packing bed layers can be improved into a layer-by-layer mode, and liquid distribution is carried out again among every layer of bed layers. However, this makes the vertical height of the packing bed high, increasing the cost of equipment manufacture and installation.
Meanwhile, in order to improve the gas-liquid contact effect under low pressure drop, the technicians in the field develop a rotational flow plate tower, and the device realizes the spiral rising of the gas flow by a spiral tower plate and fully contacts with the descending liquid flow, thereby obtaining better gas-liquid contact effect under very low gas flow pressure drop. The cyclone plate tower has wide industrial application in the fields of dust removal and desulfurization. However, the size of the cyclone plate column cannot be too large, otherwise an even distribution of the liquid cannot be guaranteed. When the gas amount required to be treated is large, a plurality of cyclone plate towers are often required to be arranged in parallel in one tower, so that the whole gas-liquid contact device is more difficult to process and has a more complex structure.
In addition, devices such as a cyclone packed bed and a spiral liquid film venturi are common devices for realizing efficient gas-liquid contact. In the process of high-speed rotation of the cyclone packing bed layer, the surface turbulence of gas-liquid contact is greatly enhanced, and the gas-liquid mass transfer effect of a theoretical plate can be obtained only by a few millimeters. However, due to the high speed rotation of the bed of swirling packing, it cannot be used at all for industrial operations with large air volumes and high liquid volumes. In addition, the spiral liquid film venturi has the problem of high pressure drop in the process of realizing efficient gas-liquid contact.
It can be known that, in the industrial field, how to avoid the phenomena of high pressure drop, liquid blockage, uneven liquid distribution, high cost of a gas-liquid contact device, complex structure and the like while realizing efficient gas-liquid contact is still a problem to be solved.
Disclosure of Invention
The embodiment of the invention provides a gas-liquid contact device, which aims to solve the problems of high pressure drop, liquid blockage, uneven liquid distribution, high cost and complex structure of the gas-liquid contact device in the conventional gas-liquid contact device.
A gas-liquid contacting apparatus, the apparatus comprising:
the device comprises at least one twisted wire brush and at least one porous carrier, wherein the number of the twisted wire brush is the same as that of the pipelines of the porous carrier;
the twisted wire brush is stuffed in the pipeline of the porous carrier and is used for adsorbing gas and liquid;
the porous carrier is used for encapsulating gas and liquid which enter the pipeline simultaneously so as to realize gas-liquid contact.
Optionally, the gas and liquid enter the conduit simultaneously in counter-current contact or in parallel contact.
Optionally, the counter-current contacting comprises: the gas enters from the lower part of the pipeline and flows out from the upper part of the pipeline, and the liquid flows in from the upper part of the pipeline and flows out from the lower part of the pipeline;
the parallel contacting includes: the gas and liquid enter simultaneously from above the pipe and exit from below the pipe.
Optionally, the bristle material of the twisted wire brush includes Polyethylene terephthalate (PET), nylon (PA), Polyethylene (PE), Polypropylene (PP), Polyvinyl Chloride (PVC), copper, aluminum alloy, steel, or aluminum.
Optionally, the diameter of the pipe orifice ranges from 3cm or more to 25cm or less.
Optionally, the twisted wire brush packed within the channel of the porous carrier comprises:
the twisted wire brush is filled in the pipeline from the lower part of the pipeline to the upper part of the pipeline; or
The twisted wire brush is stuffed in the pipeline from the top to the bottom of the pipeline.
Optionally, the upper surface and the lower surface of the pipeline are respectively covered with a fixing net, and the fixing net is made of stainless steel, polyvinyl chloride, polypropylene, copper or aluminum alloy.
Optionally, the material of the porous support comprises ceramic, polyvinyl chloride, aluminum, iron, copper, aluminum alloy, or stainless steel.
Optionally, the shape of the duct orifice of the porous carrier is circular.
Optionally, a brush body diameter of the twisted wire brush is greater than or equal to a diameter of the duct opening.
The embodiment of the invention designs the gas-liquid contact device comprising at least one twisted wire brush and at least one porous carrier, wherein the twisted wire brush is filled in a pipeline of the porous carrier and is used for adsorbing gas and liquid, the porous carrier is used for packaging the gas and the liquid which enter the pipeline simultaneously so as to realize gas-liquid contact, the problems of high pressure drop, liquid blockage, non-uniform liquid distribution, high device cost and complex structure in the conventional gas-liquid contact device are solved, the effects of low pressure drop, difficult liquid blockage and uniform liquid distribution in the gas-liquid contact process are realized, and the gas-liquid contact device has low cost and low structural complexity for industrial operation with large air volume and high liquid volume.
Drawings
FIG. 1 is a schematic structural view of a gas-liquid contact apparatus according to a first embodiment of the present invention;
FIG. 2 is a perspective view of a gas-liquid contacting device provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of a gas-liquid countercurrent contact manner in the gas-liquid contact apparatus provided in the second embodiment of the present invention;
FIG. 4 is a schematic view of another gas-liquid countercurrent contact mode in the gas-liquid contact device provided in the second embodiment of the present invention;
FIG. 5 is a schematic view of still another gas-liquid countercurrent contact mode in the gas-liquid contact apparatus provided in the second embodiment of the present invention;
fig. 6 is a schematic view of parallel gas-liquid contact in the gas-liquid contact device according to the second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic structural view of a gas-liquid contact device according to a first embodiment of the present invention, and fig. 2 is a perspective view of the gas-liquid contact device according to the first embodiment of the present invention. The gas-liquid contact device can be used in the aspects of chemical industry, dust removal, adsorption and the like. As shown in fig. 2, the gas-liquid contacting device of the present embodiment includes: at least one twisted wire brush 101 and at least one porous carrier 102, the twisted wire brush 101 comprising a brush handle 1011 and bristles 1012, the number of twisted wire brushes 101 being the same as the number of conduits of the porous carrier 102, wherein:
the twisted wire brush 101 is stuffed in the pipeline of the porous carrier 102 and is used for adsorbing gas and liquid;
the porous support 102 serves to encapsulate both gas and liquid entering the conduit simultaneously to achieve gas-liquid contact.
The handle 1011 serves to hold the bristles 1012. Each of the channels may be filled with a twisted-line brush 101, the porous carrier 102 shown in fig. 2 has 4 channels, only 3 twisted-line brushes 101 are shown in fig. 2 for clarity of the internal structure of the device, the 4 th twisted-line brush 101 is similar to the other twisted-line brushes 101, and the twisted-line brush 101 is shown in an enlarged scale for better illustration of the structure of the twisted-line brush 101. The cylindrical twisted wire brushes 101 in the pipeline are distributed in a dense spiral shape, and when gas and liquid enter the pipeline simultaneously at a certain flow speed, three-dimensional spiral surface gas-liquid contact is formed. Different from the adoption of filter cloth filtration in the prior art, there is not the tiny pore or narrow gap that forces gas and liquid to pass through in the device of this embodiment, gas and liquid flow in the space between brush hair 1012, therefore, in the gas-liquid contact process, the pressure drop in the device is less, and, brush hair 1012 of twisted wire brush 101 can disperse liquid, make the gas-liquid contact more abundant, liquid is difficult for taking place the jam, at this moment, the gas-liquid contact surface area is big and gas-liquid interface torrent is strong, liquid flows in each flow pipeline, also can not take place obvious liquid redistribution phenomenon, can avoid common "dry awl" phenomenon among the packed tower.
The specific number of the pipes and the diameter of the pipes in the porous carrier 102 can be set according to the requirement, and a plurality of pipes are fixed together by welding and connecting a metal frame, and the whole porous carrier 102 is equivalent to a hollow closed structure. For industrial operation with large air volume and high liquid volume, a plurality of porous carriers 102 filled with twisted wire brushes 101 can be combined and placed at the bed layer position of the packing tower along the pipeline direction, which is simpler in structure realization, avoids complex operation of improving the packing bed layer into a layer-by-layer mode, and simultaneously reduces the equipment manufacturing and installation cost. Also, the porous carrier 102 can be recycled by renewing the twisted wire brush 101 inside.
Optionally, the twisted wire brush 101 packed within the channel of the porous carrier 102 comprises:
the twisted wire brush 101 is filled in the pipeline from the lower part of the pipeline in a mode of from bottom to top; or
The twisted wire brush 101 is stuffed in the duct from above the duct in a top-down manner.
Optionally, the bristle 1012 material of the twisted-wire brush 101 comprises polyethylene terephthalate, nylon, polyethylene, polypropylene, polyvinyl chloride, copper, aluminum alloy, steel or aluminum, and for the case of high temperature, the bristle 1012 material of the twisted-wire brush 101 is preferably a metal material; the material of the porous support 102 includes ceramic, polyvinyl chloride, aluminum, iron, copper, aluminum alloy, or stainless steel; the shape of the duct opening of the porous carrier 102 is circular. Each pipeline in the porous carrier 102 is of a uniform three-dimensional structure along the direction of the central axis of the pipeline, and the circular pipeline opening can realize the sufficient contact between the inner wall of the pipeline and the circular brush body, so that the liquid is prevented from flowing along the inner wall of the pipeline directly. In addition, the cross-sectional shape of each of the outer walls of the tubes of the porous carrier 102 includes a regular hexagon, a circle, and a square, i.e., the cross-sectional shape of the entire tube may be a circle including two concentric circles, a regular hexagon including one circle inside, or a square including one circle inside. The thickness of the pipe wall can be set according to the needs, and this embodiment does not limit this.
Optionally, the diameter of the duct opening of the porous carrier 102 ranges from greater than or equal to 3cm to less than or equal to 25cm, and the brush body diameter of the twisted wire brush 101 is greater than or equal to the diameter of the duct opening of the porous carrier 102; the diameter of the bristles 1012 of the twisted wire brush 101 is 0.5mm or less. The diameter of the bristles 1012 increases adaptively as the diameter of the mouth of the conduit increases, with the smaller diameter of the bristles 1012, the finer the twisted wire brush 101. The diameter of the pipeline opening is too small, so that the wire twisting brush 101 is not easy to plug, the liquid blocking phenomenon is easy to occur, and the gas-liquid contact effect is influenced; the diameter of the pipeline opening is too large, the diameter of the brush body of the corresponding twisted wire brush 101 also needs to be increased, and the phenomenon that the brush body droops along the cross section direction is easy to occur, so that the contact with the inner wall of the pipeline is insufficient. Considering that the brush body of the twisted wire brush 101 and the brush bristles 1012 have certain flexibility, the twisted wire brush 101 with the brush body diameter slightly larger than the diameter of the opening of the pipeline can be selected, so that the brush body is ensured to be in full contact with the inner wall of the pipeline, and the gas-liquid contact effect is not influenced.
The technical scheme of this embodiment is through designing the gas-liquid contact device that includes at least one twisted wire brush 101 and at least one porous carrier 102, wherein, twisted wire brush 101 is packed in the pipeline of porous carrier 102, be used for adsorbing gas and liquid, porous carrier 102 is used for the encapsulation to get into the gas and the liquid of pipeline simultaneously, in order to realize gas-liquid contact, the pressure drop that has appeared in the current gas-liquid contact device is higher, liquid blocks up, liquid distributes inhomogeneous and device cost is high and the complicated problem of structure, the pressure drop is lower among the gas-liquid contact process, the difficult effect of blockking up of liquid and liquid distribution is even has been realized, and to the industrial operation of big amount of wind and high liquid volume, this gas-liquid contact device's cost is lower, the structure complexity is lower.
Example two
The present embodiment is further optimized based on the above embodiments. As shown in fig. 2, the gas-liquid contacting device of the present embodiment includes: at least one twisted wire brush 101 and at least one porous carrier 102, the twisted wire brush 101 comprising a brush handle 1011 and bristles 1012, the number of twisted wire brushes 101 being the same as the number of conduits of the porous carrier 102, wherein:
the twisted wire brush 101 is stuffed in the pipeline of the porous carrier 102 and is used for adsorbing gas and liquid;
the porous support 102 serves to encapsulate both gas and liquid entering the conduit simultaneously to achieve gas-liquid contact.
Wherein the gas and liquid enter the tubes of the porous support 102 simultaneously in either counter-current contact or parallel contact. The gas-liquid countercurrent contact or the gas-liquid parallel contact can realize effective gas-liquid contact effect.
Further, the counter-current contacting comprises: gas enters from below the tubes of the porous carrier 102 and exits from above the tubes, liquid enters from above the tubes and exits from below the tubes;
the parallel contacting includes: gas and liquid enter simultaneously from above the conduits of the porous carrier 102 and exit from below the conduits. Wherein the liquid can only enter from above the pipe, taking into account the direction of flow of the liquid. The parallel gas-liquid contact can prevent the occurrence of the phenomenon of 'flooding'.
Optionally, the upper surface and the lower surface of the pipe of the porous carrier 102 are respectively covered with a fixing net, and the material of the fixing net comprises stainless steel, polyvinyl chloride, polypropylene, copper or aluminum alloy. The fixing net on the upper surface of the pipeline can be used for blocking the twisted wire brush 101 and preventing the twisted wire brush 101 from being pushed out by air flow in the gas-liquid contact process. A retaining mesh on the lower surface of the pipe may be used to assist in optimizing the distribution of liquids and gases.
The gas-liquid countercurrent contact and the gas-liquid parallel contact are exemplified by the following figures:
fig. 3 is a schematic view of a gas-liquid countercurrent contact manner in the gas-liquid contact device provided in the second embodiment of the present invention. As shown in fig. 3, when the diameter of the brush body of the twisted wire brush 101 is exactly equal to the diameter of the opening of the conduit of the porous carrier 102, the bristles 1012 in the conduit of the porous carrier 102 are distributed horizontally. The gas enters from the lower part of the pipeline of the porous carrier 102 and flows out from the upper part of the pipeline, the liquid flows in from the upper part of the pipeline and flows out from the lower part of the pipeline, and is dispersed into individual liquid drops 301 in the process of passing through the bristles 1012, and a layer of horizontally distributed liquid film 302 is formed on the surface of the bristles 1012.
Fig. 4 is a schematic view of another gas-liquid countercurrent contact mode in the gas-liquid contact device provided in the second embodiment of the present invention. As shown in fig. 4, when the diameter of the brush body of the twisted wire brush 101 is larger than the diameter of the opening of the pipe of the porous carrier 102, and the twisted wire brush 101 is inserted into the pipe from the top to the bottom, the bristles 1012 still fully contact with the inner wall of the pipe, and the bristles 1012 are raised as a whole. The gas enters from the lower part of the pipe of the porous carrier 102 and flows out from the upper part of the pipe, the liquid flows in from the upper part of the pipe and flows out from the lower part of the pipe, and is dispersed into individual liquid drops 301 in the process of passing through the bristles 1012, and the surface of the bristles 1012 forms a layer of liquid film 302 along the inclined direction of the bristles 1012.
Fig. 5 is a schematic view of still another gas-liquid countercurrent contact method in the gas-liquid contact apparatus according to the second embodiment of the present invention. Specifically, as shown in fig. 5, when the diameter of the brush body of the twisted wire brush 101 is larger than the diameter of the opening of the pipe of the porous carrier 102, and the twisted wire brush 101 is inserted into the pipe from bottom to top below the pipe, the bristles 1012 still fully contact with the inner wall of the pipe, and the bristles 1012 are in a sagging state as a whole. The gas enters from the lower part of the pipe of the porous carrier 102 and flows out from the upper part of the pipe, the liquid flows in from the upper part of the pipe and flows out from the lower part of the pipe, and is dispersed into individual liquid drops 301 in the process of passing through the bristles 1012, and the surface of the bristles 1012 forms a liquid film 302 along the downward direction of the bristles 1012.
Fig. 6 is a schematic view of parallel gas-liquid contact in the gas-liquid contact device according to the second embodiment of the present invention. As shown in fig. 6, when the diameter of the body of the twisted wire brush 101 is larger than the diameter of the opening of the pipe of the porous carrier 102, and the twisted wire brush 101 is inserted into the pipe from the top to the bottom, the bristles 1012 still fully contact with the inner wall of the pipe, and the bristles 1012 are raised as a whole. The gas and liquid enter from above the conduit of the porous carrier 102 and exit from below the conduit simultaneously, the liquid is dispersed into individual droplets 301 as it passes through the bristles 1012, and the surface of the bristles 1012 forms a liquid film 302 in an oblique direction along the bristles 1012.
The liquid film formed on the surface of the brush staples 1012 can adsorb fine particles such as dust in the gas, increase the surface area of gas-liquid contact, and promote uniform and sufficient contact between the gas and the liquid. In actual application, the inclination direction of the entire brush 1012 is related to the flow rates of the liquid and the gas, and changes according to the flow rate of the gas and the liquid, but does not affect the effect achieved by the gas-liquid contact device of the present embodiment.
Illustratively, this gas-liquid contact device can be used for carrying out wet dust removal to dusty gas, can form the surperficial gas-liquid contact of three-dimensional spiral when dusty gas flow passes through twisted wire brush 101, and when gas from the bottom up passes twisted wire brush 101, some dust in the gas flow can be caught by the brush hair 1012 centrifugation, and other gas then because the gas flow effect carries out countercurrent contact with the spray liquid from the top down, further catches superfine dust. The device is very suitable for treating waste gas with complex filtering and washing working conditions.
The following will describe in detail the effect of the present embodiment of achieving a low pressure drop during the gas-liquid contacting process, taking the specific application of the gas-liquid contacting device of the present embodiment in the industrial dust removal aspect as an example.
Example one:
4 twisted wire brushes 101 made of PVC materials are respectively plugged into a porous carrier 102 with 4 parallel pipelines from bottom to top, the upper surface and the lower surface of each pipeline are respectively covered by stainless steel fixing nets to form a gas-liquid contact device, wherein the brush body length of each twisted wire brush 101 is the same as the pipeline length of the porous carrier 102 and is set to be 10cm, the diameter of a circular pipeline opening of the porous carrier 102 is 3cm, the brush body diameter of each twisted wire brush 101 is 1.0 time of the diameter of the pipeline opening, the diameter of bristles 1012 of each twisted wire brush 101 is selected to be 0.05mm, and the porous carrier 102 is made of cordierite in ceramics. And opening a tap water pump, regulating the flow to 50L/min, slowly opening the dust gas valve from top to bottom in the liquid flow direction, controlling the flow to be 200L/min, and enabling the gas flow to enter from the lower part of the pipeline and flow out from the upper part, wherein the gas and the liquid are in countercurrent contact. At a wind speed of 2m/s, the device has a removal efficiency of 99.9% for particles having a diameter of 10 μm and a pressure drop of 50 Pa.
Example two:
the method comprises the steps of respectively plugging 9 twisted wire brushes 101 made of aluminum materials into a porous carrier 102 with 9 parallel pipelines from top to bottom, covering the upper surface and the lower surface of each pipeline with stainless steel fixing nets to form a gas-liquid contact device, wherein the brush body length of each twisted wire brush 101 is the same as the pipeline length of each porous carrier 102 and is set to be 200cm, the diameter of a circular pipeline opening of each porous carrier 102 is 25cm, the brush body diameter of each twisted wire brush 101 is 1.3 times of the diameter of the pipeline opening, the diameter of bristles 1012 of each twisted wire brush 101 is selected to be 0.5mm, and the porous carrier 102 is made of stainless steel. And opening the purified water pump, controlling the flow at 100L/min, enabling the liquid to flow from top to bottom, slowly opening the dust gas valve, adjusting the gas flow to 400L/min, and enabling the gas to flow from bottom to top, wherein the gas and the liquid are in countercurrent contact. At a wind speed of 4m/s, the device has a 99.9% removal efficiency for particles of 10 microns in diameter and a pressure drop of 80 Pa.
Example three:
the twisted wire brushes 101 made of 16 PP materials are respectively plugged into a porous carrier 102 with 16 parallel pipelines from bottom to top, the upper surface and the lower surface of each pipeline are covered by stainless steel fixing nets to form a gas-liquid contact device, wherein the brush body length of each twisted wire brush 101 is the same as the pipeline length of each porous carrier 102 and is set to be 100cm, the diameter of a circular pipeline opening of each porous carrier 102 is 10cm, the brush body diameter of each twisted wire brush 101 is 1.1 times of the diameter of the pipeline opening, the diameter of bristles 1012 of each twisted wire brush 101 is selected to be 0.2mm, and the porous carrier 102 is made of aluminum alloy. And opening a NaOH liquid pump with the concentration of 1%, adjusting the liquid amount to be 200L/min, slowly opening the dust gas valve when the liquid flow flows from top to bottom, adjusting the gas amount to be 800L/min, and adjusting the gas flow direction from top to bottom, wherein the gas and the liquid are in parallel contact. At a wind speed of 8m/s, the device has a 99.9% removal efficiency for particles of 10 microns in diameter and a pressure drop of 120 Pa.
Example four:
4 twisted wire brushes 101 made of nylon PA materials are respectively plugged into a porous carrier 102 with 4 parallel pipelines from bottom to top, the upper surface and the lower surface of each pipeline are covered by copper wire fixing nets to form a gas-liquid contact device, wherein the brush body length of each twisted wire brush 101 is the same as the pipeline length of the porous carrier 102 and is set to be 10cm, the diameter of a circular pipeline opening of the porous carrier 102 is 3cm, the brush body diameter of each twisted wire brush 101 is 1.0 time of the diameter of the pipeline opening, the diameter of bristles 1012 of each twisted wire brush 101 is selected to be 0.05mm, and the porous carrier 102 is made of aluminum. And opening a tap water pump, regulating the flow to be 100L/min, slowly opening the dust air valve from top to bottom in the liquid flow direction, controlling the flow to be 400L/min, and enabling the air flow to enter from the lower part and flow out from the upper part, wherein the air and the liquid are in countercurrent contact. At a wind speed of 2m/s, the device has a removal efficiency of 99.5% for particles having a diameter of 5 μm and a pressure drop of 80 Pa.
Example five:
the method comprises the steps of respectively plugging 10 twisted wire brushes 101 made of PE materials into a porous carrier 102 with 10 parallel pipelines from bottom to top, covering the upper surface and the lower surface of each pipeline with stainless steel wire fixing nets to form a gas-liquid contact device, wherein the lengths of brush bodies of the twisted wire brushes 101 and the pipelines of the porous carrier 102 are the same and are respectively set to be 50cm, the diameter of a circular pipeline opening of the porous carrier 102 is 6cm, the diameter of a brush body of the twisted wire brushes 101 is 1.2 times of the diameter of the pipeline opening, the diameter of bristles 1012 of the twisted wire brushes 101 is selected to be 0.1mm, and the porous carrier 102 is made of iron. And opening a tap water pump, regulating the flow to 200L/min, slowly opening the dust gas valve from top to bottom in the liquid flow direction, controlling the flow to be 800L/min, and enabling the gas flow to enter from the lower part and flow out from the upper part, wherein the gas and the liquid are in countercurrent contact. At a wind speed of 4m/s, the device has a 99.5% removal efficiency for particles of 5 microns in diameter and a pressure drop of 120 Pa.
In the above example, when the bristles 1012 of the twisted wire brush 101 in the porous carrier 102 are saturated with dust, the gas valve is closed and cleaning is performed, so that the gas-liquid contact device can be reused.
The technical scheme of this embodiment is through designing the gas-liquid contact device that includes at least one twisted wire brush 101 and at least one porous carrier 102, wherein, twisted wire brush 101 is packed in the pipeline of porous carrier 102, be used for adsorbing gas and liquid, porous carrier 102 is used for the encapsulation to get into the gas and the liquid of pipeline with countercurrent contact or parallel contact mode simultaneously, in order to realize gas-liquid contact, the pressure drop that has appeared among the current gas-liquid contact device is higher, the liquid blocks up, the liquid distributes inhomogeneous and device cost is high and the complicated problem of structure, the pressure drop is lower in the gas-liquid contact process, liquid is difficult to block up and liquid distributes even effect, and to the industrial operation of big amount of wind and high liquid volume, this gas-liquid contact device's cost is lower, the structure complexity is lower.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. A gas-liquid contacting device, comprising:
the device comprises at least one twisted wire brush and at least one porous carrier, wherein the number of the twisted wire brush is the same as that of the pipelines of the porous carrier;
the twisted wire brush is stuffed in the pipeline of the porous carrier and is used for adsorbing gas and liquid, and the gas comprises particles to be adsorbed;
the porous carrier is used for encapsulating gas and liquid which enter the pipeline simultaneously so as to realize gas-liquid contact;
the material of the porous carrier comprises ceramic, polyvinyl chloride, aluminum, iron, copper, aluminum alloy or stainless steel.
2. The apparatus of claim 1, wherein the gas and liquid enter the conduit simultaneously in counter-current contact or in parallel contact.
3. The apparatus of claim 2, wherein:
the counter-current contacting comprises: the gas enters from the lower part of the pipeline and flows out from the upper part of the pipeline, and the liquid flows in from the upper part of the pipeline and flows out from the lower part of the pipeline;
the parallel contacting includes: the gas and liquid enter simultaneously from above the pipe and exit from below the pipe.
4. The device of claim 1, wherein a bristle material of the twisted wire brush comprises polyethylene terephthalate, nylon, polyethylene, polypropylene, polyvinyl chloride, copper, aluminum alloy, steel, or aluminum.
5. The apparatus of claim 1, wherein the diameter of the conduit orifice ranges from 3cm or more to 25cm or less.
6. The apparatus of claim 1, wherein the twisted wire brush packed within the channel of the porous carrier comprises:
the twisted wire brush is filled in the pipeline from the lower part of the pipeline to the upper part of the pipeline; or
The twisted wire brush is stuffed in the pipeline from the top to the bottom of the pipeline.
7. The apparatus of claim 1, wherein the upper and lower surfaces of the pipe are respectively covered with fixing nets, and the material of the fixing nets comprises stainless steel, polyvinyl chloride, polypropylene, copper or aluminum alloy.
8. The apparatus of claim 1, wherein the shape of the conduit mouth of the porous carrier is circular.
9. The apparatus of claim 1, wherein a brush body diameter of the twisted wire brush is equal to or greater than a diameter of the conduit orifice.
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| CN104801124A (en) * | 2015-04-17 | 2015-07-29 | 中国科学院过程工程研究所 | Method for preparing efficient catering cooking fume processing module |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5114175A (en) * | 1974-06-19 | 1976-02-04 | Lerner Bernard J | Butsushitsu mataha netsutenkansochi |
| CN203315926U (en) * | 2013-06-08 | 2013-12-04 | 林长骏 | Rotary-hairbrush centrifugal atomizing dust remover |
| CN104801124A (en) * | 2015-04-17 | 2015-07-29 | 中国科学院过程工程研究所 | Method for preparing efficient catering cooking fume processing module |
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