CN111672147A - Novel anti-pollution and anti-blocking vapor-liquid distributor - Google Patents
Novel anti-pollution and anti-blocking vapor-liquid distributor Download PDFInfo
- Publication number
- CN111672147A CN111672147A CN202010579459.7A CN202010579459A CN111672147A CN 111672147 A CN111672147 A CN 111672147A CN 202010579459 A CN202010579459 A CN 202010579459A CN 111672147 A CN111672147 A CN 111672147A
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- liquid
- pipe
- tower body
- liquid distribution
- distribution pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
Abstract
The invention relates to a novel anti-fouling vapor-liquid distributor, which comprises a tower body, a filter plate, a liquid distributor and a filler arranged in the tower body, wherein the filter plate is detachably fixed on the inner wall of the tower body, a plurality of raised grooves for filtering particles in liquid are uniformly arranged on the filter plate, the filter plate is positioned above the filler, and the liquid distributor is fixed in the tower body and is arranged between the filler and the filter plate. The liquid distributor comprises a liquid inlet pipe, a liquid distribution pipe and a plurality of liquid distribution pipes, a funnel is arranged between the liquid inlet pipe and the filter plate, the liquid distribution pipes are communicated with the liquid distribution pipes and are evenly arranged on two sides of the liquid distribution pipes, the liquid inlet pipe is arranged on the liquid distribution pipes and is connected with the liquid distribution pipes, a sealing valve is arranged in the liquid inlet pipe, an air pump is fixed on the inner side wall of the tower body and is communicated with the liquid inlet pipe through an air pipe, and the connecting part of the air pipe and the liquid inlet pipe is arranged on one side, close to the liquid.
Description
Technical Field
The invention relates to the technical field of distributors, in particular to a novel anti-pollution and anti-blocking vapor-liquid distributor.
Background
In order to reduce the amplification effect caused by the liquid maldistribution and fully utilize the packing efficiency, a liquid distributor must be installed in the packed tower to distribute the liquid uniformly over the top of the packing layer. The quality of the initial distribution of liquid not only affects the mass transfer efficiency of the packing, but also affects the operational flexibility of the packing. Therefore, the liquid distributor is an extremely key internal part in the packed tower, the types of the distributors are more, and the selection is mainly based on many aspects such as distribution quality, operation elasticity, treatment capacity, gas resistance, levelness and the like.
In the prior art, as disclosed in chinese patent No. CN209237904U, a trough-type vapor-liquid distributor is disclosed, which comprises a base plate, the upper surface of the base plate is provided with a plurality of slots, the inner side wall of each slot is provided with two sliding chutes, two sliding blocks are respectively connected in the two sliding grooves in a sliding way, and the four sliding blocks are respectively fixedly arranged at two sides of the outer surface of the distribution groove, a threaded hole a is formed in the sliding block, a threaded hole b is formed in the position, opposite to the threaded hole a, of the upper surface of the base plate, the threaded holes a and the threaded holes b are both connected with fixing bolts a in a threaded manner, fixing plates are welded and fixed on the two sides of the outer surface of the base plate far away from the slot, the clamping joint has the screw cap in the fixed plate, the top of distributing box is equipped with the splitter box perpendicularly, the both sides face that the splitter box corresponds two fixed plates all sets up screw hole c, equal threaded connection has fixing bolt b in screw hole c and the screw cap.
The above prior art solutions have the following drawbacks: the groove type vapor-liquid distributor is similar to the traditional vapor-liquid distributor in structure and does not have the function of resisting fouling and blocking. In the chemical production process, contain more impurity in the liquid usually, the distributor is after long-time work, and impurity can gather and be difficult to get rid of in the distributor, often causes the unable normal work of device because of the distributor blocks up, need close the machine and overhaul and influence production, increase manufacturing cost, influence economic benefits.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a novel anti-fouling and plugging vapor-liquid distributor which has the effects of resisting fouling and plugging and improving the working stability of the distributor.
The above object of the present invention is achieved by the following technical solutions:
a novel anti-fouling and anti-blocking vapor-liquid distributor comprises a tower body, a filter plate, a liquid distributor and a filler arranged in the tower body, wherein the filter plate is detachably fixed on the inner wall of the tower body, a plurality of protruding grooves used for filtering particles in liquid are uniformly formed in the filter plate, the filter plate is positioned above the filler, and the liquid distributor is fixed in the tower body and arranged between the filler and the filter plate;
the liquid distributor includes feed liquor pipe, liquid distribution pipe and a plurality of liquid distribution pipe, the feed liquor pipe with be provided with the funnel between the filter, it is a plurality of the liquid distribution pipe with liquid distribution pipe intercommunication and evenly set up the both sides of liquid distribution pipe, the feed liquor pipe sets up on the liquid distribution pipe and with the liquid distribution pipe is connected, be provided with the seal valve in the feed liquor pipe, be fixed with the air pump on the inside wall of tower body, the air pump pass through the trachea with feed liquor pipe intercommunication, the trachea with the junction setting of feed liquor pipe is in the seal valve is close to one side of liquid distribution pipe.
Through above-mentioned technical scheme, on the during operation, let in the filter with liquid, the liquid that has impurity passes through the filter plate, and some solid particles get into protruding groove along with the flow of liquid, have reduced the content of fixed impurity in the liquid to a certain extent, have avoided liquid distributor's jam. Flowing liquid flows into the liquid inlet pipe through the funnel, the sealing valve and the air pump are opened, the air is pressurized by the air pump and then discharged into the liquid inlet pipe through the air pipe, the flow speed of the liquid is improved, the phenomenon of pollution and blockage is avoided, and the liquid can be rapidly and uniformly distributed on the top of the packing layer. And if the liquid inlet pipe, the liquid distribution pipe and the liquid distribution pipe are blocked, the sealing valve is closed, high-pressure gas generated by the air pump is introduced into the pipeline, and the blocking objects are removed from the liquid distributor under the action of the high-pressure gas, so that the practicability of the device is improved. Can be more even with liquid distribution through liquid distributor to improve tubular tower vapour-liquid separation effect, the stability of distributing liquid is better.
The present invention in a preferred example may be further configured to: the filter plate is the loop configuration, the filter plate is the downward sloping column structure from the outer lane to the inner circle.
Through above-mentioned technical scheme, when having improved liquid flow with the area of contact of filter for impurity in the liquid can be better get into protruding inslot, reduced solid impurity's in the liquid content, avoid taking place the phenomenon of jam. And because the special structure of filter plate for liquid can be under the effect of gravity, automatic through the filter plate inflow liquid distributor.
The present invention in a preferred example may be further configured to: a filter screen is arranged in the liquid inlet pipe and is arranged above the sealing valve.
Through above-mentioned technical scheme, the filter screen can further filter the fixed impurity in the liquid for liquid distributor is difficult for taking place dirty stifled phenomenon.
The present invention in a preferred example may be further configured to: the filter screen is doped with active carbon particles.
Through the technical scheme, the activated carbon particles have the characteristics of developed pore structures, good adsorption performance, high mechanical strength, easiness in repeated regeneration, low manufacturing cost and the like, can well adsorb various impurities in liquid, and improves the purity of the liquid.
The present invention in a preferred example may be further configured to: the liquid distribution pipe with the junction between the feed liquor pipe is provided with the flowmeter, be fixed with on the lateral wall of tower body with the parameter table that the flowmeter is connected for show the data that the flowmeter surveyed.
Through above-mentioned technical scheme, under the circumstances of normal work, the parameter table is used for showing the parameter of flowmeter, can know the total amount of fluidic in the liquid distributor in selected time interval through observing the parameter table, when data reduce, can judge to a certain extent and take place the phenomenon of jam in the liquid distributor, and the workman of being convenient for in time carries out maintenance to the vapour-liquid distributor. When the sealing valve is closed and the air pump is opened, high-pressure air generated by the air pump impacts the blocked place, the air flows through the flowmeter and displays the flow rate of the air on the parameter table, so that a worker can know the pressure of the air pump conveniently, and the pressure of the air pump can be adjusted conveniently.
The present invention in a preferred example may be further configured to: the liquid inlet pipe is characterized in that a plurality of waterproof laser lamps are arranged on the inner wall of the liquid inlet pipe, a waist-shaped liquid level window is fixedly connected to the liquid inlet pipe, and transparent glass is arranged in the liquid level window.
Through above-mentioned technical scheme, waterproof laser lamp can carry out germicidal treatment to liquid, and the light that sends simultaneously shines in the feed liquor pipe for the staff not only can observe the height of liquid level through the clear glass on the liquid level window, can also in time discover simultaneously whether take place dirty stifled phenomenon in the feed liquor pipe.
The present invention in a preferred example may be further configured to: a plurality of liquid distribution pipes are circular structure, the liquid distribution pipe passes a plurality of centre of a circle department and both ends that the liquid distribution pipe formed respectively in the inner wall fixed connection of tower body, the feed liquor pipe sets up on the centre of a circle.
Through above-mentioned technical scheme, the liquid that gets into in the inlet liquid pipe flows towards the direction at liquid distribution pipe both ends to evenly flow in the liquid distribution pipe, through liquid distribution pipe evenly distributed at the upper strata of tower internal packing. The liquid distribution pipe can distribute liquid more stably, and the performance of the liquid distribution pipe is improved.
The present invention in a preferred example may be further configured to: the liquid distribution pipe is far away from a plurality of through holes communicated with the inside are formed in the outer side wall of the liquid distribution pipe, and the through holes are formed in a plurality of positions along the length direction of the liquid distribution pipe and are evenly arranged.
Through above-mentioned technical scheme, the liquid that flows into in the cloth liquid pipe falls into the packing in the tower body through a plurality of through-holes for liquid distribution is more even, finally makes vapour-liquid separation effect better, has improved vapour-liquid distributor's practicality.
In summary, the invention includes at least one of the following beneficial technical effects:
1. during operation, on letting in the filter with liquid, the liquid that has impurity passes through the filter plate, and some solid particles get into protruding groove along with the flow of liquid, have reduced the content of fixed impurity in the liquid to a certain extent, have avoided liquid distributor's jam. Flowing liquid flows into the liquid inlet pipe through the funnel, the sealing valve and the air pump are opened, the air is pressurized by the air pump and then discharged into the liquid inlet pipe through the air pipe, the flow speed of the liquid is improved, the phenomenon of pollution and blockage is avoided, and the liquid can be rapidly and uniformly distributed on the top of the packing layer. And if the liquid inlet pipe, the liquid distribution pipe and the liquid distribution pipe are blocked, the sealing valve is closed, high-pressure gas generated by the air pump is introduced into the pipeline, and the blocking objects are removed from the liquid distributor under the action of the high-pressure gas, so that the practicability of the device is improved. Can be more even with liquid distribution through liquid distributor to improve tubular tower vapour-liquid separation effect, the stability of distributing liquid is better.
2. Under the condition of normal work, the parameter table is used for showing the parameter of flowmeter, can know the total amount of fluidic in selected time interval in the liquid distributor through observing the parameter table, when data reduce, can judge to a certain extent and take place the phenomenon of jam in the liquid distributor, and the workman of being convenient for in time carries out maintenance to vapour liquid distributor. When the sealing valve is closed and the air pump is opened, high-pressure air generated by the air pump impacts the blocked place, the air flows through the flowmeter and displays the flow rate of the air on the parameter table, so that a worker can know the pressure of the air pump conveniently, and the pressure of the air pump can be adjusted conveniently.
3. Waterproof laser lamp can carry out germicidal treatment to liquid, and the light that sends simultaneously shines in the inlet liquid pipe for the staff not only can observe the height of liquid level through the transparent glass on the liquid level window, can also in time discover simultaneously whether take place dirty stifled phenomenon in the inlet liquid pipe.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic view showing the overall structure of the liquid distributor according to the present invention.
Reference numerals: 1. a tower body; 11. an air pump; 2. a filter plate; 21. a raised groove; 3. a liquid distributor; 31. a liquid inlet pipe; 311. a sealing valve; 312. a filter screen; 313. a waterproof laser lamp; 314. a liquid level window; 315. transparent glass; 32. a liquid distribution tube; 33. a liquid distribution pipe; 4. a filler; 5. a funnel; 6. a flow meter; 61. and (4) a parameter table.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the novel anti-fouling and anti-blocking vapor-liquid distributor disclosed by the invention comprises a tower body 1, a filter plate 2, a liquid distributor 3 and a filler 4 arranged in the tower body 1, wherein the filter plate 2 is detachably fixed on the inner wall of the tower body 1, a plurality of protruding grooves 21 for filtering particles in liquid are uniformly arranged on the filter plate 2, the filter plate 2 is positioned above the filler 4, and the liquid distributor 3 is fixed in the tower body 1 and is arranged between the filler 4 and the filter plate 2.
The filter 2 is the loop configuration, and the filter 2 is the downward sloping column structure from the outer lane to the inner circle. The contact area with the filter plate 2 when having improved liquid flow for in the protruding groove 21 of entering that impurity in the liquid can be better, reduced the content of solid impurity in the liquid, avoided taking place the phenomenon of jam. And because the special structure of filter 2 for liquid can be under the effect of gravity, automatic through filter 2 inflow liquid distributor 3.
The liquid distributor 3 includes a liquid inlet pipe 31, a liquid distribution pipe 32 and a plurality of liquid distribution pipes 33, a funnel 5 is arranged between the liquid inlet pipe 31 and the filter plate 2, the liquid distribution pipes 33 are communicated with the liquid distribution pipe 32 and are uniformly arranged on two sides of the liquid distribution pipe 32, the liquid inlet pipe 31 is arranged on the liquid distribution pipe 32 and is connected with the liquid distribution pipe 32, a sealing valve 311 is arranged in the liquid inlet pipe 31, an air pump 11 is fixed on the inner side wall of the tower body 1, the air pump 11 is communicated with the liquid inlet pipe 31 through an air pipe, and the connection part of the air pipe and the liquid inlet pipe 31 is arranged on one side, close to the.
Referring to fig. 3, the plurality of liquid distribution pipes 33 are circular, the liquid distribution pipe 32 penetrates through a circle center formed by the plurality of liquid distribution pipes 33, and two ends of the liquid distribution pipe are fixedly connected to the inner wall of the tower body 1 respectively, and the liquid inlet pipe 31 is arranged on the circle center. The liquid entering the liquid inlet pipe 31 flows towards the two ends of the liquid distribution pipe 32, and uniformly flows into the liquid distribution pipe 33, and is uniformly distributed on the upper layer of the packing 4 in the tower body 1 through the liquid distribution pipe 33. The liquid distribution pipe 33 can distribute liquid more stably, and the performance of the liquid distribution pipe 33 is improved. Further, a plurality of through holes communicated with the inside are formed in the outer side wall, far away from the liquid distribution pipe 32, of the liquid distribution pipe 33, and the through holes are evenly formed in the length direction of the liquid distribution pipe 33. Liquid that flows into in the liquid distribution pipe 33 falls into filler 4 in tower body 1 through a plurality of through-holes for liquid distribution is more even, finally makes vapour-liquid separation effect better, has improved vapour-liquid distributor's practicality.
Referring to fig. 2, a filter screen 312 is disposed in the liquid inlet pipe 31, and the filter screen 312 is disposed above the sealing valve 311. The filter screen 312 can further filter the fixed impurities in the liquid, so that the liquid distributor 3 is not easy to generate the phenomenon of pollution and blockage. Furthermore, the filter screen 312 is doped with activated carbon particles, and the activated carbon particles have the characteristics of developed pore structure, good adsorption performance, high mechanical strength, easy repeated regeneration, low manufacturing cost and the like, can well adsorb various impurities in the liquid, and improves the purity of the liquid.
Further, a flowmeter 6 is arranged at the joint between the liquid distribution pipe 32 and the liquid inlet pipe 31, and a parameter table 61 (see fig. 1) connected with the flowmeter 6 is fixed on the outer side wall of the tower body 1 and used for displaying data measured by the flowmeter 6. Under the condition of normal work, parameter table 61 is used for showing flowmeter 6's parameter, can know the total amount of fluid in selected time interval in liquid distributor 3 through observing parameter table 61, when data reduce, can judge to a certain extent and take place the phenomenon of jam in liquid distributor 3, and the workman of being convenient for in time maintains the processing to vapour liquid distributor. When the sealing valve 311 is closed and the air pump 11 is opened, and the high-pressure air generated by the air pump 11 impacts the blocked place, the air flows through the flow meter 6 and the flow rate of the air is displayed on the parameter table 61, so that the pressure of the air pump 11 can be known by the staff, and the pressure of the air pump 11 can be adjusted conveniently.
Referring to fig. 2, a plurality of waterproof laser lamps 313 are disposed on the inner wall of the liquid inlet pipe 31, a waist-shaped liquid level window 314 is fixedly connected to the liquid inlet pipe 31, and transparent glass 315 is disposed in the liquid level window 314. Waterproof laser lamp 313 can carry out germicidal treatment to liquid, and the light that sends simultaneously shines in feed liquor pipe 31 for the staff not only can observe the height of liquid level through transparent glass 315 on the liquid level window 314, can also in time discover simultaneously whether take place dirty stifled phenomenon in the feed liquor pipe 31.
The implementation principle of the embodiment is as follows: during operation, on letting in filter 2 with liquid, the liquid that has impurity passes through filter 2, and some solid particles get into protruding groove 21 along with the flow of liquid, have reduced the content of fixed impurity in the liquid to a certain extent, have avoided the jam of liquid distributor 3. Flowing liquid flows into the liquid inlet pipe 31 through the funnel 5, the sealing valve 311 and the air pump 11 are opened, the air is pressurized by the air pump 11 and then discharged into the liquid inlet pipe 31 through the air pipe, the flow speed of the liquid is improved, the phenomenon of pollution and blockage is avoided, and the liquid can be rapidly and uniformly distributed on the top of the filler 4 layer. And if the liquid inlet pipe 31, the liquid distribution pipe 32 and the liquid distribution pipe 33 are blocked, the sealing valve 311 is closed, the high-pressure gas generated by the air pump 11 is introduced into the pipeline, and the blockage is removed from the liquid distributor 3 under the action of the high-pressure gas, so that the practicability of the device is improved. Can be with liquid distribution's more even through liquid distributor 3 to improve tubular tower vapour-liquid distributor's vapour-liquid separation effect, the stability of distributing liquid is better.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a novel stifled vapour-liquid distributor of anti-soil, includes tower body (1), filter (2), liquid distributor (3) and installs filler (4) in tower body (1), filter (2) can be dismantled and fix on the inner wall of tower body (1), its characterized in that: a plurality of protruding grooves (21) for filtering particles in liquid are uniformly arranged on the filter plate (2), the filter plate (2) is positioned above the filler (4), and the liquid distributor (3) is fixed in the tower body (1) and arranged between the filler (4) and the filter plate (2);
liquid distributor (3) are including feed liquor pipe (31), liquid distribution pipe (32) and a plurality of liquid distribution pipe (33), feed liquor pipe (31) with be provided with funnel (5), a plurality of between filter (2) liquid distribution pipe (33) with liquid distribution pipe (32) intercommunication and evenly set up the both sides of liquid distribution pipe (32), feed liquor pipe (31) set up on liquid distribution pipe (32) and with liquid distribution pipe (32) are connected, be provided with seal valve (311) in feed liquor pipe (31), be fixed with air pump (11) on the inside wall of tower body (1), air pump (11) pass through the trachea with feed liquor pipe (31) intercommunication, the trachea with the junction of feed liquor pipe (31) sets up seal valve (311) is close to one side of liquid distribution pipe (32).
2. The novel anti-fouling vapor-liquid distributor according to claim 1, wherein: the filter plate (2) is of an annular structure, and the filter plate (2) is of a downward inclined structure from the outer ring to the inner ring.
3. The novel anti-fouling vapor-liquid distributor according to claim 1, wherein: a filter screen (312) is arranged in the liquid inlet pipe (31), and the filter screen (312) is arranged above the sealing valve (311).
4. The novel anti-fouling vapor-liquid distributor according to claim 3, wherein: the filter screen (312) is doped with activated carbon particles.
5. The novel anti-fouling vapor-liquid distributor according to claim 4, wherein: the liquid distribution pipe (32) with junction between feed liquor pipe (31) is provided with flowmeter (6), be fixed with on the lateral wall of tower body (1) with parameter table (61) that flowmeter (6) are connected for show the data that flowmeter (6) surveyed.
6. The novel anti-fouling vapor-liquid distributor according to claim 1, wherein: be provided with a plurality of waterproof laser lamp (313) on the inner wall of feed liquor pipe (31), fixedly connected with is liquid level window (314) of waist shape on feed liquor pipe (31), be provided with transparent glass (315) in liquid level window (314).
7. The novel anti-fouling vapor-liquid distributor according to claim 1, wherein: it is a plurality of cloth liquid pipe (33) are circular structure, liquid distribution pipe (32) pass a plurality ofly the centre of a circle department and both ends that cloth liquid pipe (33) formed are respectively in the inner wall fixed connection of tower body (1), feed liquor pipe (31) set up on the centre of a circle.
8. The novel anti-fouling vapor-liquid distributor according to claim 7, wherein: cloth liquid pipe (33) are kept away from set up the inside a plurality of through-holes of intercommunication on the lateral wall of liquid distribution pipe (32), and are a plurality of the through-hole is followed evenly set up in cloth liquid pipe (33) length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579459.7A CN111672147A (en) | 2020-06-23 | 2020-06-23 | Novel anti-pollution and anti-blocking vapor-liquid distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579459.7A CN111672147A (en) | 2020-06-23 | 2020-06-23 | Novel anti-pollution and anti-blocking vapor-liquid distributor |
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| CN111672147A true CN111672147A (en) | 2020-09-18 |
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| CN202010579459.7A Pending CN111672147A (en) | 2020-06-23 | 2020-06-23 | Novel anti-pollution and anti-blocking vapor-liquid distributor |
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| CN (1) | CN111672147A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112316886A (en) * | 2020-10-15 | 2021-02-05 | 南通锐深环保科技有限公司 | Multifunctional packed tower internal part |
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| CN112316886A (en) * | 2020-10-15 | 2021-02-05 | 南通锐深环保科技有限公司 | Multifunctional packed tower internal part |
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Application publication date: 20200918 |