CN202238062U - Gridding structured packing - Google Patents
Gridding structured packing Download PDFInfo
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- CN202238062U CN202238062U CN2011203699683U CN201120369968U CN202238062U CN 202238062 U CN202238062 U CN 202238062U CN 2011203699683 U CN2011203699683 U CN 2011203699683U CN 201120369968 U CN201120369968 U CN 201120369968U CN 202238062 U CN202238062 U CN 202238062U
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Abstract
The utility model relates to structured packing for chemical equipment, in particular to polypropylene plastic gridding structured packing, which is formed by one-shot forming of polypropylene plastics. Grids are mutually connected to form a whole body, each grid is in the shape of a square or a rectangle, and the proportion of a long side to a short side of the rectangle is smaller than 1.25. A plurality of thickened cross-shaped walls are arranged at intervals in a gridding structured packing disc so that a thickened cross-shaped reinforced framework contacted with the top and the bottom is formed in a structured packing layer installed by a plurality of layers of gridding structured packing in stacking mode. The structure is highly stable, sides of the grids are all short, after stressed, the sides of the grids are not prone to distortion, stress tolerance of the grids is strong, and resistance to lodging is stronger. On the condition of high stress tolerance, the thickness of the gridding structured packing is decreased, the packing consumes less materials, packing cost is lowered, absorption effect is improved, self-cleaning capability is strong, and speed for filling a tower with the gridding structured packing is fast and time is short.
Description
Technical field
The utility model relates to a kind of structured packing, specifically is meant the structured packing of polypropylene plastics grid.
Background technology
In prior art; The dumped packing, the plate ripple arranged packing that are used for synthesis ammonia plant semiwater gas desulphurizing, desulfuration of shift gas; Because contain impurity such as sulphur foam, crystal, dust fine particle in the liquid, the filler easy blocking has not only increased resistance; Also can cause can't producing and the compelled processing of stopping after the serious obstruction of filler, stopping, it is big to lose; Under the operating mode of big liquid measure, high sprinkle density; Small gaps between small gaps, filler and the filler in the filler; The big quantity of fluid that gets off of being easy to flowed closes and, sealing; Stopped up by impurity such as sulphur foams more easily, the long-pending surface area during than dried tower of dumped packing, the plate ripple arranged packing real surface under is in working order reduced greatly, reduced heat transfer, mass transfer effect; A lot of oblique, bar, ditch are arranged in the dumped packing under the duty, the plate ripple arranged packing; Make the liquid that much flows downward change obliquely flow into, increased the liquid holdup in the packing layer, increased the time of staying of doctor solution in packing layer; Be unfavorable for desulfurization; The liquid obliquely flow has also slowed down the flow velocity of liquid at filling surface, and surface, groove and place, slit that the impurity such as sulphur foam in the doctor solution stick to filler have more easily accelerated the obstruction of filler; Also weaken whereabouts liquid to the washing away, clear up of filling surface bur, accelerated, increased the weight of the obstruction of filler; Dumped packing or plate ripple arranged packing are used for desulphurization system and take off high-sulfur or when cooling washing, can make the total resistance of desulphurization system very big; Dumped packing, plate ripple arranged packing are used for the dedusting of synthesis ammonia plant gas making aeration tower, cooling, and not only resistance is big, also are easy to stop up.
In existing grid filler; The little grid of filler is rectangle, and long and wide ratio all more than 3, has influenced anti-pressure ability, lodging tolerance and the stability of grid filler generally; In order to reach certain lodging tolerance and stability; The limit of little grid will thicken, and make the feed consumption of filler many, and the deadweight of filler also increases; Grid is rectangle, or specific area is low, influences desulfurized effect, or the width of grid is little, easy blocking, and the resistance of Liquid Flow also increases; The rectangle housing of grid packing box is a straight flange, and the housing of each the piece grid filler after the installation is pasting each other, has promptly occupied the gas-liquid channel area, increases resistance, many again feed consumptions, also easy blocking;
The grid wall of the grid filler that has is not the injection moulding all-in-one-piece, be by horizontal plate and vertically plate insert mutually and form grid, insert gappedly mutually, poor stability, intensity are low, yielding, use thicker plate to process; Be not connected basically between each grid; Slit very little between each grid also can be sealed by liquid; Or stopped up by impurity such as sulphur foams, in case the few or no liquid of liquid that some or several grid distributes, falls into, these grids are the also few or no liquid with liquid from top to bottom; Make the gas-liquid in the grid contact rapid variation, have a strong impact on the assimilation effect of this or this several grids; Laterally plate with vertically have the assemblage gap of inserting mutually between the plate, laterally the last straight flange of the last straight flange of plate and following straight flange and vertical plate and following straight flange be or not same plane, exists the integraty of mesh walls poor, poor stability; Self reinforcement ability of mesh walls is low; Make the lodging tolerance of grid filler poor, anti-pressure ability is low, and the plate of grid is obviously thick; The feed consumption of filler is obviously many, and the deadweight of filler also increases; The horizontal plate that numbers of poles is many is very big with the workload that vertical plate groups is dressed up a lot of grid packing box of quantity, and labor intensive is many, and the required time is long; Because the grid packing box is not an one, should not outside tower, assemble the grid packing box yet, otherwise in the process of sending into Ta Nei and in tower, putting, the plate that the grid filler is inserted mutually is easy to scatter; Not only workload is big for assembling grid filler in tower, and working face is little, and the set-up time is longer, and down time is long, and the loss of stopping is big; Each position thickness of above filler basically all is identical, and the filler feed consumption is many.
Prior art has the following disadvantages:
1, dumped packing and plate ripple arranged packing easy blocking;
2, dumped packing and plate ripple arranged packing are under the operating mode of the big liquid measure of desulfurization, high sprinkle density; In the filler and be easy to flowed the in a large number liquid that gets off of the small gaps between the filler close and, sealing; Stopped up by impurity such as sulphur foams more easily, the long-pending surface area during than dried tower of the real surface under making in working order reduces greatly;
3, a lot of oblique, bar, ditch are arranged in dumped packing, the plate ripple arranged packing; Make the liquid that much flows downward change obliquely flow into; Increased the liquid holdup in the packing layer, also slowed down the flow velocity of liquid at filling surface, some impurity are located attached to surface, groove and the slit of filler more easily; Accelerated the obstruction of filler, weakened whereabouts liquid washing away the filling surface bur;
When 4, the corrosion resistant plate corrugated regular filler reinstalled after splitting out, corrugated plate was elongated, and the enlarged diameter of the cylindrical of packing box is difficult to pack into by original size, shape again, and is very big to later assimilation effect influence;
5, dumped packing or plate ripple arranged packing are used to take off high-sulfur or when cooling washing, can make desulfurization total resistance very big;
6, dumped packing or plate ripple arranged packing are used for the dedusting of gas making aeration tower, the cooling of synthesis ammonia plant normal pressure, and not only resistance is big, also are easy to stop up;
7, in existing grid filler, the little grid of filler is elongated, and the length of little grid and wide ratio have influenced anti-pressure ability, lodging tolerance and the stability of grid filler more than 2.5, and the thickness of mesh walls is at 5mm, and the feed consumption of filler is many;
8, grid is elongated, or specific area is low, or the width of grid is little, easy blocking, and the resistance of Liquid Flow also increases;
9, the rectangle housing of grid packing box is a straight flange, and the housing of each the piece grid filler after the installation is pasting each other, has promptly occupied the gas-liquid channel area, increases resistance, many again feed consumptions, also easy blocking;
10, horizontal plate and the slotting mutually grid that forms of vertical plate that have by opening, laterally the last straight flange of the last straight flange of plate and following straight flange and vertical plate and following straight flange be not or not same plane, and the grid wall of grid filler is not an one; Insert gappedly mutually, poor stability, intensity are low, yielding; Anti-pressure ability and lodging tolerance are poor; The sheet 5mm of grid, the feed consumption of filler is obviously many, has also increased resistance;
11, be not connected basically between each grid; Slit very little between each grid also can be sealed by liquid; Or stopped up by impurity; In case the few or no liquid of liquid that some or several grids distribute, fall into, these grids be the also few or no liquid with liquid from top to bottom, have a strong impact on the assimilation effect of this or this several grids;
12, the workload of numbers of poles horizontal plate how and vertical plate groups being dressed up a lot of grid packing box of quantity is very big, and labor intensive is many, and the required time is long;
13, because the grid packing box is not an one, should not outside tower, assemble the grid packing box, not only workload is big for assembling grid filler in tower, and working face is little, and the set-up time is longer, and the loss of stopping is big;
14, each position thickness of above filler basically all is identical, and the feed consumption of filler is many.
The utility model content
The purpose of the utility model is the novel grid structured packing that the polypropylene plastics material that a kind of result of use is better, feed consumption is few is provided to above-mentioned deficiency.
The technical solution of the utility model is: the grid structured packing is made up of the grid of evenly arranging in length and breadth.Adopt the polypropylene plastics single injection-molded, the length that interconnects each grid that is integral and be square or limit and wide ratio are less than 1.25 rectangle, promptly near square.The length of side 18mm of each grid～80mm; The height of all grids equates, highly is 40mm～120mm; The thickness of all mesh walls is identical, is 1mm～3.5mm, and every grid structured packing dish is a rectangle, and its width has two kinds, and a kind of width is 380mm～490mm, and another kind of width is 500mm～590mm.Several thickening crosstie walls that is intervally arranged are arranged in grid structured packing dish, and thickness is 2mm～6mm.In the long limit of grid structured packing dish housing both sides, the straight edges of boards of a side band, opposite side is not for being with straight edges of boards (being non-straight edges of boards); In the minor face of housing both sides, the straight edges of boards of a side band, opposite side is not for being with straight edges of boards (being non-straight edges of boards).In tower, successively stack when grid structured packing dish is installed; / 2nd installations that the grid structured packing dish that last layer is adjacent with following one deck all respectively staggers the grid length of side in horizontal and vertical direction; The crosstie wall center that each four adjacent and continuous each other mesh walls of last layer form; Be positioned at the place, top, center of each grid of one deck down; Last layer keeps in touch with the crosstie wall of following one deck thickening, makes and in the structured filling material layer that is stacked installation by the multi-layer net structured packing, forms up and down the crosstie wall web frame that contacts, thickeies.
Square net is compared with the strip grid, and the one, this stability of structure is good, and the limit of grid is all shorter; After being stressed, the limit of grid is not easy distortion; The anti-pressure ability of grid is strong, and lodging tolerance is stronger, and the rectangular limit of strip grid is the weak part that influences grid stability; The 2nd, for square net of the same area and strip grid; The width of square net is greater than the width of strip grid; The strip grid easy blocking that mesh width is narrow, resistance is also big, and improves the anti-blockage capability main purpose of the utility model just.The height of all grids of grid structured packing equates.Every grid structured packing dish is that length is the rectangle of 2 times of width, and width is less than 600mm or 500mm, so that in packing tower into from the manhole of Ф 600 or Ф 500; Except the part is thickeied, mesh walls thickness is all identical.
Per four adjacent and continuous each other mesh walls in the grid structured packing dish have formed a crosstie wall; In grid structured packing dish, there are several crosstie walls to be thickeied; The crosstie wall of thickening edge in grid structured packing dish is intervally arranged in length and breadth; Purpose is through improving the anti-pressure ability of local mesh walls; In the grid structured filling material layer, form the crosstie wall web frame that contacts up and down, thickeies, and then improve the whole anti-pressure ability of grid structured packing, and save the plastics feed consumption of grid structured packing.
In order to make the joint between each the piece grid structured packing dish that is installed in the tower also is square net; The long limit shape and the minor face shape of every grid structured packing dish housing both sides are all variant; In the long limit of every grid structured packing dish housing both sides; The straight edges of boards of one side band, opposite side are non-straight edges of boards; In the minor face of housing both sides, a side is straight edges of boards, and opposite side is non-straight edges of boards.In tower, install when putting grid structured packing dish; The non-straight edges of boards on the straight edges of boards on a grid structured packing dish length limit and the adjacent long limit of another piece grid structured packing dish join; The non-straight edges of boards of the straight edges of boards of minor face and adjacent another piece grid structured packing dish minor face join, the square net that remains that the straight edges of boards in joint of two grid structured packing dishes and non-straight edges of boards join and form.In the joint of each grid structured packing dish, straight edges of boards that had more when promptly not having two grid structured packing dishes and all be straight edges of boards have been saved the consumption of plastics, and can have been avoided the sulphur foam occurring at two straight edges of boards places that join and stop up.The deficiency that the mesh walls of stretching out when not having two grid structured packing dishes again and all be non-straight edges of boards is inserted each other.
In tower, successively stack when grid structured packing dish is installed; The grid structured packing dish of adjacent last layer and following one deck; No matter be that horizontal parallel is installed; Still the vertical installation of horizontal direction half-twist; Install in the horizontal and vertical direction of grid structured packing dish 1/2nd of the square net length of side that all respectively staggers, i.e. the crosstie wall centers that form of each four adjacent and continuous each other mesh walls of last layer are positioned at down the top, center of each square net of one deck and locate; And the crosstie wall of last layer and the thickening of following one deck still keeps in touch, and makes and in the structured filling material layer that is stacked installation by the multi-layer net structured packing, forms up and down the crosstie wall web frame that contacts, thickeies.Adjacent last layer and following one deck grid structured packing dish are after horizontal and vertical direction all respectively staggers installation; The liquid that last layer mesh walls surface current gets off falls into down in the square net of one deck; In the square net of following one deck, form the cross water curtain; This provides the gas-liquid contact area again, like this, the one, increased the actual gas-liquid contact area under the grid structured packing in working order; Filling surface when making actual gas-liquid contact area than dried tower is long-pending almost to have increased by one times, has improved assimilation effect significantly; The 2nd, the liquid that last layer mesh walls surface current gets off falls on the wall that descends one deck grid again; Liquid is to fall near the freely falling body mode, and falling speed is very fast, and the whereabouts impulsive force of liquid is bigger; Increased self the cleaning ability to the filling surface bur, anti-adhesive, anti-blockage capability strengthen; The 3rd, further promotion, accelerated to descend again the speed that flows downward of liquid on one deck grid structured packing mesh walls, further reduced the liquid holdup of packing layer, shortened the time of staying of liquid at packing layer; The 4th, the many grids of numbers of poles are arranged in the packing layer; The liquid that the mesh walls surface current gets off falls on the last plane of descending one deck mesh walls again, can produce splashing of liquid, produces fine drop; Also can increase the gas-liquid contact area again, will be more obvious under the situation of gas and liquid flowing contact; The 5th, because neighbouring grid structured packing dish installs in 1/2nd of the square net length of side that all respectively staggers of direction in length and breadth, and the number of plies of grid structured packing is a lot, when the grid of gas through the structured packing of each layer grid; Air-flow is constantly separated, merges, separates, remerges; The interface is brought in constant renewal in, and the cross mesh walls that is constantly headed on is again stirred, and air-flow is in the state of continuous turbulence; Very help the gas-liquid contact in the grid, further improved assimilation effect.
The top of all grid walls all in same plane, the below of all grid walls also in same plane, thereby keep higher intensity and the stability of grid.
The utility model has the advantages that: 1, under thin grid thickness condition, the anti-pressure ability and the lodging tolerance of grid structured packing obviously strengthen good stability; 2, under the higher compression ability condition, the thickness of grid structured packing reduces, and the filler feed consumption is few, has reduced the filler cost; 3, in working order down, filling surface long-pending increased about one times of the actual gas-liquid contact area of grid structured packing during than dried tower improved assimilation effect significantly; 4, the anti-adhesive of grid structured packing, performance of anti-blockage are good; The mesh walls smooth surface; No groove, seamless in the packing layer; Self cleaning ability is strong, and absorption, the washing under the abominable condition of work such as tower taken off in aeration tower, cooling tower, desulfurizing tower, scrubbing tower, the change that can be used for synthesis ammonia plant, Methanol Plant; 5, the liquid in the packing layer, or along under the vertical current of mesh walls surface, or vertically fall on the base of mesh walls; Form water curtain, not only increased the gas-liquid contact area widely, also all accelerated liquid decrease speed in the packing layer; The packing layer liquid holdup is low, and liquid residence time is short; 6, gas-liquid channel is regular, and Liquid Flow is unobstructed, and the gas flow resistance is low, the aeration tower that suitable operating pressure is very low, cooling tower; 7, when gas passes through the grid of each layer grid structured packing; Gas stream is constantly separated, merges, separates, remerges; The interface is brought in constant renewal in, and the cross mesh walls that is constantly headed on is again stirred, and air-flow is in the state of continuous turbulence; Very help the gas-liquid contact in the grid, further improved assimilation effect; 8, the adjacent that is installed between each interior piece grid structured packing dish of tower also is a square net; 9, grid structured packing dress tower speed is fast, and the time is short.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the plane sketch of the utility model.
Fig. 2 is the elevational schematic view that grid structured packing multilayer is put.
The specific embodiment
Referring to Fig. 1, the polypropylene plastics single injection-molded is adopted in the grid structured packing, is made up of the square net of evenly arranging in length and breadth 1, and all grids 1 are highly equal.Each grid 1 length of side 38mm, height 60mm, the thickness of mesh walls 2 is 2.0mm, and every grid structured packing dish is a rectangle, and length is two times of width, and the length and width height is: 960 * 480 * 60mm.The inwall of desulfurizing barrel all is circular, pastes the rectangular mesh structured packing dish that cylinder inboard wall is installed, and all cuts into circular shape at subsides cylinder inboard wall place.
Per four adjacent and continuous each other mesh walls 2 in the grid structured packing dish have formed a crosstie wall; In grid structured packing dish, having 11 crosstie walls is thickeied; The crosstie wall 3 of thickening edge in grid structured packing dish is intervally arranged in length and breadth; Crosstie wall 3 thickness of thickening are 4mm, and purpose is through improving the anti-pressure ability of local mesh walls, in the grid structured filling material layer, forming crosstie wall 3 web frames that contact up and down, thicken; And then improve the whole anti-pressure ability of grid structured packing, and save the plastics feed consumption of grid structured packing.
In order to make the joint between each the piece grid structured packing dish that is installed in the tower also is square net; The long limit shape and the minor face shape of every grid structured packing dish housing both sides are all variant; In the long limit of every grid structured packing dish housing both sides; One side is straight edges of boards 4, and opposite side is non-straight edges of boards 5; In the minor face of housing both sides, a side is straight edges of boards 6, and opposite side is non-straight edges of boards 7.In tower, install when putting grid structured packing dish; The straight edges of boards 4 on a grid structured packing dish length limit join with the non-straight edges of boards 5 on the adjacent long limit of another piece grid structured packing dish; The straight edges of boards 6 of minor face join with the non-straight edges of boards 7 of another adjacent piece grid structured packing dish minor face, the square net that remains that the straight edges of boards in joint of two grid structured packing dishes and non-straight edges of boards join and form.Joint at each grid structured packing dish; Straight edges of boards that had more when promptly not having two grid structured packing dishes and all be straight edges of boards; Saved the consumption of plastics; And can avoid occurring at two straight edges of boards places that join the sulphur foam and stop up, the mesh walls 2 of stretching out when not having two grid structured packing dishes again and all be non-straight edges of boards is the deficiencies of insertions each other.
Referring to Fig. 2; In tower, successively stack when grid structured packing dish is installed; The grid structured packing dish that last layer is adjacent with following one deck, in 1/2nd installations that horizontal and vertical direction all respectively staggers grid 1 length of side, crosstie wall 3 of each thickening of last layer and following one deck still keeps in touch; Be the crosstie wall center that each four adjacent and continuous each other mesh walls 2 of last layer form, be positioned at the place, top, center of each grid 1 of one deck down.
In tower, successively stack when grid structured packing dish is installed; Adjacent last layer and following one deck grid structured packing dish; No matter be that horizontal parallel is installed, the still vertical installation of horizontal direction half-twist, 1/2nd installations of all respectively staggering grid 1 length of side in horizontal and vertical direction; It is the crosstie wall center that each 4 adjacent and continuous each other mesh walls 2 of last layer form; Be positioned at the down place, top, center of each square net 1 of one deck, and the crosstie wall 3 that last layer and following one deck are thickeied keeps in touch still, make and in the structured filling material layer that stacks installation by the multi-layer net structured packing, form up and down crosstie wall 3 web frames that contact, thicken.The last layer grid structured packing dish adjacent with following one deck horizontal and vertical direction all respectively stagger install after; The liquid that last layer mesh walls 2 surface currents get off falls into down in the square net 1 of one deck; In the square net 1 of following one deck, form the cross water curtain, this provides the gas-liquid contact area again, like this; The one, increased the actual gas-liquid contact area under the grid structured packing in working order, the filling surface when making actual gas-liquid contact area than dried tower is long-pending almost to have increased by one times; The 2nd, the liquid that last layer mesh walls 2 surface currents get off falls into and descends on one deck mesh walls 2 again, and the impulsive force of liquid is bigger, has increased self the cleaning ability to the filling surface bur, and anti-adhesive, anti-blockage capability strengthen; The 3rd, further promotion, accelerated to descend again the speed that flows downward of liquid on one deck grid structured packing mesh walls 2, further reduced the liquid holdup of packing layer, shortened the time of staying of liquid at packing layer; The 4th, the many grids 1 of numbers of poles are arranged in the packing layer; The liquid that mesh walls 2 surface currents get off falls on the last plane of descending one deck mesh walls 2 again, can produce splashing of liquid, produces fine drop; Also can increase the gas-liquid contact area, will be more obvious under the situation of gas and liquid flowing contact; The 5th, because neighbouring grid structured packing dish installs in 1/2nd of grid 1 length of side that all respectively staggers of direction in length and breadth, and the number of plies of grid structured packing is a lot, when the grid 1 of gas through the structured packing of each layer grid; Air-flow is constantly separated, merges, separates, remerges; The interface is brought in constant renewal in, and the cross mesh walls 2 that is constantly headed on is again stirred, and air-flow is in the state of continuous turbulence; Very help the gas-liquid contact in the grid 1, further improved assimilation effect.
Through taking above measure; Anti-pressure ability, lodging tolerance and the anti-blockage capability of grid structured packing both can have been improved; Improve the gas-liquid contact area and the assimilation effect of grid filler again, reduced the plastics feed consumption of prepared filler simultaneously again, reduced the material cost of filler.
Claims (7)
1. grid structured packing is made up of the grid of evenly arranging in length and breadth (1), it is characterized in that adopting the polypropylene plastics single injection-molded, interconnect each grid (1) of being integral for the length on square or limit and wide ratio less than 1.25 rectangle.
2. according to the described grid structured packing of claim 1, it is characterized in that the length of side 18mm～80mm of each grid (1); The height of all grids (1) equates, highly is 40mm～120mm; The thickness of all mesh walls (2) is identical, is 1mm～3.5mm.
3. according to claim 1 or 2 described grid structured packings, it is characterized in that the thickening crosstie wall (3) that has several to be intervally arranged in the grid structured packing dish.
4. according to the described grid structured packing of claim 3, it is characterized in that crosstie wall (3) thickness of thickening is 2mm～6mm.
5. according to the described grid structured packing of claim 4, it is characterized in that in the long limit of grid structured packing dish housing both sides, the straight edges of boards of a side band (4), opposite side is not for being with straight edges of boards (5); In the minor face of housing both sides, the straight edges of boards of a side band (6), opposite side are not with straight edges of boards (7).
6. according to the described grid structured packing of claim 2, it is characterized in that every grid structured packing dish is a rectangle, its width has two kinds, and a kind of width is 380mm～490mm, and another kind of width is 500mm～590mm.
7. according to the described grid structured packing of claim 4; It is characterized in that in tower, successively stacking when grid structured packing dish is installed; / 2nd installations that the grid structured packing dish that last layer is adjacent with following one deck all respectively staggers grid (1) length of side in horizontal and vertical direction; The crosstie wall center that each four adjacent and continuous each other mesh walls (2) of last layer form; Be positioned at the place, top, center of each grid of one deck (1) down, last layer keeps in touch with the crosstie wall (3) of following one deck thickening, makes and in the structured filling material layer that is stacked installation by the multi-layer net structured packing, forms up and down crosstie wall (3) web frame that contacts, thickeies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203699683U CN202238062U (en) | 2011-09-30 | 2011-09-30 | Gridding structured packing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203699683U CN202238062U (en) | 2011-09-30 | 2011-09-30 | Gridding structured packing |
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|---|---|
| CN202238062U true CN202238062U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203699683U Expired - Fee Related CN202238062U (en) | 2011-09-30 | 2011-09-30 | Gridding structured packing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107303481A (en) * | 2016-04-21 | 2017-10-31 | 王宝华 | A kind of novel plastic structured packing |
| CN109506493A (en) * | 2018-12-19 | 2019-03-22 | 中冶焦耐(大连)工程技术有限公司 | A kind of double half ball pine material layer fillers |
| CN109506491A (en) * | 2018-12-19 | 2019-03-22 | 中冶焦耐(大连)工程技术有限公司 | Cross pine material layer filler |
-
2011
- 2011-09-30 CN CN2011203699683U patent/CN202238062U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107303481A (en) * | 2016-04-21 | 2017-10-31 | 王宝华 | A kind of novel plastic structured packing |
| CN109506493A (en) * | 2018-12-19 | 2019-03-22 | 中冶焦耐(大连)工程技术有限公司 | A kind of double half ball pine material layer fillers |
| CN109506491A (en) * | 2018-12-19 | 2019-03-22 | 中冶焦耐(大连)工程技术有限公司 | Cross pine material layer filler |
| CN109506491B (en) * | 2018-12-19 | 2024-04-23 | 中冶焦耐(大连)工程技术有限公司 | Cross loose material layer filler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140930 |
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