CN205287879U - Be applied to liquid fog demister of rectifying column - Google Patents

Be applied to liquid fog demister of rectifying column Download PDF

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Publication number
CN205287879U
CN205287879U CN201521013146.6U CN201521013146U CN205287879U CN 205287879 U CN205287879 U CN 205287879U CN 201521013146 U CN201521013146 U CN 201521013146U CN 205287879 U CN205287879 U CN 205287879U
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China
Prior art keywords
rectifying column
cover cylinder
blind plate
liquid
demister
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Active
Application number
CN201521013146.6U
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Chinese (zh)
Inventor
郭亮
周齐
张小江
鲍燕娟
牛柯
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Shenzhen Sunevap Tech Co Ltd
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Shenzhen Sunevap Tech Co Ltd
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Abstract

The utility model provides a be applied to liquid fog demister of rectifying column, includes the rectifying column casing, rectifying column casing top, middle part and bottom be equipped with gas outlet, liquid fog synthetic gas entry and liquid outlet respectively, gas outlet department is equipped with loose casing flange, rectifying column casing outer wall be equipped with and be equipped with lug, circulation material import and export subassembly, sight glass from top to bottom respectively and wash a mouthful subassembly, the rectifying column casing in be equipped with guide ring, whirl and remove the foam subassembly, the guide ring locate the below of gas outlet and locate the top that the whirl removed the foam subassembly, the whirl remove the top that liquid fog synthetic gas entry was located to the foam subassembly, the awl shell be fixed in on the rectifying column shells inner wall, a cover section of thick bamboo set firmly in the awl on the shell, liquid receiving tank locate cover bobbin top portion, overflow pipe along awl shell setting and communicateing with liquid receiving tank, the blind plate be the plectane of central trompil, the blind plate locate cover bobbin base portion, whirl blade equipartition in a cover section of thick bamboo and locate above the blind plate.

Description

It is applied to the liquid mist demister of rectifying column
Technical field
When this practicality relates to medicinal liquid extraction, in gaseous fluid, liquid foam filters and removes mist field, espespecially a kind of liquid mist demister being applied to rectifying column.
Background technology
In chemical industry, petrochemical industry and oil refining etc. produce, tower is one of wherein important equipment, primarily serves gas (or vapour) or the biphase close contact of liquid, reaches the effect of interphase mass transfer and heat transfer. In the application such as chemical industry, petrochemical industry, the performance of tower suffers from great impact for the production capacity of whole equipment, the norm quota of consumption, three-protection design and environmental conservation. In existing plate column and packed tower equipment, in the operation carrying out the gas-liquid mass transfers such as rectification, absorption, desorbing, increasing (subtracting) be wet, heat transfer unit, it is all by biphase close contact and separation, the transmission of alternate component is promoted, thus realizing the purpose that liquid or gas purification, increasing (subtracting) are wet. In above process, in the gas phase leaving packing layer or plate tower, the drop all can carry some secretly, differing in size or liquid foam, the existence of this material not only wastes solvent but also increase the difficulty that downstream product is refining, therefore, mist in gas must be controlled in the scope set, just can reach the requirement of overall preparation technology.
In existing Despumation device, generally adopt the device such as cyclone type demister or wire mesh demister that " liquid foam and mist " is removed. But cyclone type demister carries out foam removal due to it by centrifugal device, it is therefore desirable to inlet gas speed requires height, concurrently separate inefficient, and be not readily separated the mist of less particle diameter, thus " liquid foam and mist " to be removed accurately can not be removed. Wire mesh demister, owing to carrying out foam removal by silk screen, has setting requirement to separating " particle diameter " with air-flow velocity, and therefore, to carrying secretly, serious mist removal effect is poor.And existing Despumation device is from the angle of mass transfer, heat transfer, efficiency is generally relatively low, and existing Despumation device is flap-type structure, and the distance between sheet and sheet is relatively big, and this is disadvantageous factor easy ash deposit and slag buildup in its surface, it is difficult to rinse well. Cost is high, install maintenance inconvenience.
Utility model content
For solving the problems referred to above, this practicality provides a kind of liquid mist demister being applied to rectifying column.
For achieving the above object, this practicality adopts the following technical scheme that and is: a kind of liquid mist demister being applied to rectifying column, including rectifying column housing, described rectifying column case top, middle part and bottom are respectively equipped with gas outlet, liquid mist synthesis gas entrance and liquid outlet, gas outlet is provided with male and fomale(M&F) Loose tube flange and convex surface Loose tube flange, described rectifying column housing exterior walls is provided with and is from top to bottom respectively equipped with hanger, recycle stock imports and exports assembly, visor rinse mouth assembly, it is provided with guide ring in described rectifying column housing, eddy flow foam removal assembly, described guide ring is located at the lower section of gas outlet and is located at the top of eddy flow foam removal assembly, the top of liquid mist synthesis gas entrance is located at by described eddy flow foam removal assembly, described eddy flow foam removal assembly includes conical shell, cover cylinder, blind plate, swirl vane and submerged soil and overflow pipe, described conical shell is fixed in rectifying column inner walls, described cover cylinder is fixedly arranged on conical shell, described submerged soil is located at cover cylinder top, described overflow pipe arranges along conical shell and connects with submerged soil, the plectane of perforate centered by described blind plate, described blind plate is located at bottom cover cylinder, described swirl vane is distributed in cover cylinder and is located at above blind plate, described swirl vane includes base, hypotenuse, connect limit and by base, hypotenuse and connection limit head and the tail connect and form triangular-section block face, described connection limit is connected with cover cylinder inwall upper extreme point, described one end, base is tangent with blind plate circumferential edge fixing, the described base other end is connected with cover cylinder inwall, described block face becomes 22.5-30 angle (the blade elevation angle) with blind plate, it is preferably 25 degree of angles.
In use, reacted synthesis gas is entered rectifying column enclosure interior by liquid mist synthesis gas entrance, and then spiral is through eddy flow foam removal assembly, at swirl vane place, gas-liquid flow, from being assigned to each swirl vane by blind plate, forms thin liquid layer, and is sprayed into drop by air-flow. Drop is got rid of to rectifying column inner walls by centrifugal force with while air motion, is formed along the pendular ring rotated, and by action of gravity downstream to the submerged soil of annular, again through overflow pipe flow to adapter and on elbow stream to rectifying column inner walls. Owing to more than blind plate being the low-pressure area of swirling eddy, overflow pipe is not required to fluid-tight, is " from fluid-tight ". Liquid from stream to swirl vane, to from collecting tank dirty, all contact with gas, and when passing air-flow with fine droplets state, conduct heat, the intensity of mass transfer big.
Effect due to centrifugal force so that gas and liquid are separated, the gas after separation is discharged through gas outlet, and liquid is discharged through liquid outlet, thus reaching the purpose of gas-liquid separation.
In being approximately triangle swirl vane, the circumference of base and blind plate is tangential on angle (radial angle) �� of B point, base and blind plate RADIAL; With the intersection of cover barrel intersect at C point with cover barrel upper end when swirl vane is with angle of elevation alpha, swirl vane connects limit and can be similar to curve is considered as straightway, intersects at A point with cover cylinder inwall, then �� ACB is obtuse angle.The C point that swirl vane intersects with cover barrel upper end with the subpoint (C ' point) in blind plate same level, the C ' intersection point on base is D point, therefore the distance of C ' D can be tried to achieve by �� CDC ', because of CC '=Hz (cover cylinder is high) ��=�� CDC ', �� CC ' D=90 ��, so C ' D=Hz/tg ��. Can calculate as known Hz and �� and try to achieve C ' D value. Try to achieve the distance of C ' D, just can do with this in parallel lines intersection graph on base that great circle is in C point, then subtriangular swirl vane tries to achieve quantity exactly.
Under the influence of centrifugal force drop is got rid of and separate to cover cylinder inwall (owing to wall effect and action of gravity are along wall stream). To when separating the size droplet diameter mist more than 18 ��, foam removal efficiency is more than 99%. Important technological parameters: 22.5��30 �� of the blade elevation angle; Perforation kinetic energy factor F=(Vs/A0) (�� G) 015=10��12 (m/s) (kg/m3) 015.
From the angle of mass transfer, heat transfer, leaves density is reasonable, liquid mist separates fast, except mist is effective, it is to avoid choking phenomenon occur, saves maintenance cost.
Preferably, described swirl vane includes the hydrophobic skins, stainless steel layer and the hydrophobic primer that cover successively. Swirl vane surface is through special handling, and spy is smooth and has self-lubricity, is not easy ash deposit and slag buildup in its surface. Even if some dust stratification is also easy to rinse well, reduce mist eliminator flushing frequency number of times, reduce flushing water and make consumption, it is ensured that demister runs in low-resistance, thus solving vane dust deposition fouling to cause the phenomenons such as the increase of demister resistance, flue gas with water. Cost is low, install, easy to maintenance. Drag losses is low.
Preferably, described eddy flow foam removal assembly also includes adapter, elbow, lacing wire, gusset, and described elbow is located at adapter lower end, and described adapter connects with overflow pipe, described lacing wire is fixing takes in rectifying column inner walls, and described gusset strengthens fixing conical shell in rectifying column inner walls.
Preferably, described cover cylinder top is provided with several emptying drain holes, and described emptying drain hole and submerged soil are uniformly at intervals in cover cylinder top.
Preferably, described guide ring includes the first half hoop plate and the second half hoop plate, described half hoop plate is provided with some reinforcements, described half hoop plate side is provided with some pieces of triangle gussets and connects gusset, described connection gusset is symmetrically set in triangle gusset both sides, described dowel and triangle muscle junction are provided with guide pipe and lead, and the first described half hoop plate and the second half hoop plate are connected by screw bolt and nut.
Accompanying drawing explanation
Fig. 1 is this utility model structure chart.
Fig. 2 is this utility model eddy flow foam removal assembly assumption diagram.
Fig. 3 is this utility model cover barrel structure figure.
Fig. 4 is this utility model guide ring structure figure.
Mark illustrates: 1. liquid outlet; 2. liquid mist synthesis gas entrance; 3. rectifying column housing; 4. eddy flow foam removal assembly; 5. guide ring; 6. hanger; 7. male and fomale(M&F) Loose tube flange; 8 convex surface Loose tube flanges; 9. recycle stock import assembly; 10. visor rinse mouth assembly; 11. gas outlet; 41. elbow; 42. lacing wire; 43. adapter; 44. conical shell; 45. cover cylinder; 46. blade; 47. blind plate; 48. gusset; 49. submerged soil; 50. emptying drain hole; 61. the first half hoop plate; 62. reinforcement; 63. the second half hoop plate; 64. triangle gusset; 65. connection gusset; 66. guide pipe; 67. lead; 68. screw bolt and nut.
Detailed description of the invention
Refer to shown in Fig. 1-4, this practicality is about a kind of liquid mist demister being applied to rectifying column, including rectifying column housing 3, described rectifying column housing 3 top, middle part and bottom are respectively equipped with gas outlet 11, liquid mist synthesis gas entrance 2 and liquid outlet 1, place of gas outlet 11 is provided with male and fomale(M&F) Loose tube flange 7 and convex surface Loose tube flange 8, described rectifying column housing 3 outer wall is provided with and is from top to bottom respectively equipped with hanger 6, recycle stock imports and exports assembly 9, visor rinse mouth assembly 10, it is provided with guide ring 5 in described rectifying column housing 3, eddy flow foam removal assembly 4, described guide ring 5 is located at the lower section of gas outlet 11 and is located at the top of eddy flow foam removal assembly 4, the top of liquid mist synthesis gas entrance 2 is located at by described eddy flow foam removal assembly 4, described eddy flow foam removal assembly 4 includes conical shell 44, cover cylinder 45, blind plate 47, swirl vane 46 and submerged soil 49 and overflow pipe, described conical shell 44 is fixed on rectifying column housing 3 inwall, described cover cylinder 45 is fixedly arranged on conical shell 44, described submerged soil 49 is located at cover cylinder 45 top, described overflow pipe arranges along conical shell 44 and connects with submerged soil 49, the plectane of perforate centered by described blind plate 47, described blind plate 47 is located at bottom cover cylinder 45, described swirl vane 46 is distributed in cover cylinder 45 and is located at above blind plate 47, described swirl vane 46 includes base, hypotenuse, connect limit and by base, hypotenuse and connection limit head and the tail connect and form triangular-section block face, described connection limit is connected with cover cylinder 45 inwall upper extreme point, described one end, base is tangent with blind plate 47 circumferential edge fixing, the described base other end is connected with cover cylinder 45 inwall, described block face and blind plate 47 one-tenth 22.5-30 �� of angle (the blade elevation angle), it is preferably 25 degree of angles.
In use, it is internal that reacted synthesis gas is entered rectifying column housing 3 by liquid mist synthesis gas entrance 2, and then spiral is through eddy flow foam removal assembly 4, at swirl vane 46 place, gas-liquid flow, from being assigned to each swirl vane 46 by blind plate 47, forms thin liquid layer, and is sprayed into drop by air-flow. Drop is got rid of to rectifying column housing 3 inwall by centrifugal force with while air motion, is formed along the pendular ring rotated, and by action of gravity downstream to the submerged soil 49 of annular, flows on rectifying column housing 3 inwall again through overflow pipe flow to adapter 43 and through elbow 41. Owing to blind plate more than 47 is the low-pressure area of swirling eddy, overflow pipe is not required to fluid-tight, is " from fluid-tight ". Liquid from stream to swirl vane 46, to from collecting tank dirty, all contact with gas, and when passing air-flow with fine droplets state, conduct heat, the intensity of mass transfer big.
Effect due to centrifugal force so that gas and liquid are separated, and the gas after separation is discharged through gas outlet 11, and liquid is discharged through liquid outlet 1, thus reaching the purpose of gas-liquid separation.
In being approximately triangle swirl vane 46, the circumference of base and blind plate 47 is tangential on angle (radial angle) �� of B point, base and blind plate 47 RADIAL; With the intersection of cover cylinder 45 wall intersect at C point with cover cylinder 45 wall upper end when swirl vane 46 is with angle of elevation alpha, swirl vane 46 connects limit and can be similar to curve is considered as straightway, intersects at A point with cover cylinder 45 inwall, then �� ACB is obtuse angle. The C point that swirl vane 46 intersects with cover cylinder 45 wall upper end with the subpoint (C ' point) in blind plate 47 same level, the C ' intersection point on base is D point, therefore the distance of C ' D can be tried to achieve by �� CDC ', because of CC '=Hz (cover cylinder 45 is high) ��=�� CDC ', �� CC ' D=90 ��, so C ' D=Hz/tg ��. Can calculate as known Hz and �� and try to achieve C ' D value. Try to achieve the distance of C ' D, just can do in the parallel lines intersection graph on base great circle with this in C point, then subtriangular swirl vane 46 tries to achieve each edge lengths of swirl vane 46 and density exactly.
Under the influence of centrifugal force drop is got rid of and separate to cover cylinder 45 inwall (owing to wall effect and action of gravity are along wall stream). To when separating the size droplet diameter mist more than 18 ��, foam removal efficiency is more than 99%. Important technological parameters: 22.5��30 �� of the blade elevation angle; Perforation kinetic energy factor F=(Vs/A0) (�� G) 015=10��12 (m/s) (kg/m3) 015.
From the angle of mass transfer, heat transfer, leaves density is reasonable, liquid mist separates fast, except mist is effective, it is to avoid choking phenomenon occur, saves maintenance cost.
Preferably, described swirl vane 46 includes the hydrophobic skins, stainless steel layer and the hydrophobic primer that cover successively. Swirl vane 46 surface is through special handling, and spy is smooth and has self-lubricity, is not easy ash deposit and slag buildup in its surface. Even if some dust stratification is also easy to rinse well, reduce mist eliminator flushing frequency number of times, reduce flushing water and make consumption, it is ensured that demister runs in low-resistance, thus solving blade 46 ash deposit and slag buildup to cause the phenomenons such as the increase of demister resistance, flue gas with water. Cost is low, install, easy to maintenance. Drag losses is low.
Preferably, eddy flow foam removal assembly 4 also includes adapter 43, elbow 41, lacing wire 42, gusset 48, described elbow 41 is located at adapter 43 lower end, and the described fixing adapter 43 of lacing wire 42 is in rectifying column housing 3 inwall, and described gusset 48 strengthens fixing conical shell 44 in rectifying column housing 3 inwall.
Preferably, described cover cylinder 45 top is provided with several emptying drain holes 50, and described emptying drain hole 50 and submerged soil 49 are uniformly at intervals in cover cylinder 45 top.
Preferably, described guide ring 5 includes the first half hoop plate 61 and the second half hoop plate 63, described half hoop plate is provided with some reinforcements 62, described half hoop plate side is provided with some pieces of triangle gussets 64 and connects gusset 65, described connection gusset 65 is symmetrically set in triangle gusset 64 both sides, described dowel and triangle muscle junction are provided with guide pipe 66 and lead 6767, and the first described half hoop plate 61 and the second half hoop plate 63 are connected by screw bolt and nut 68.
Embodiment of above is only that the preferred implementation to this practicality is described; not the scope of this practicality is defined; under the premise without departing from this practical design spirit; various deformation that the technical scheme of this practicality is made by this area ordinary skill technical staff and improvement, all should fall in the protection domain that claims of this practicality are determined.

Claims (6)

1. the liquid mist demister being applied to rectifying column, including rectifying column housing, described rectifying column case top, middle part and bottom are respectively equipped with gas outlet, liquid mist synthesis gas entrance and liquid outlet, gas outlet is provided with male and fomale(M&F) Loose tube flange and convex surface Loose tube flange, described rectifying column housing exterior walls is provided with and is from top to bottom respectively equipped with hanger, recycle stock imports and exports assembly, visor rinse mouth assembly, it is provided with guide ring in described rectifying column housing, eddy flow foam removal assembly, described guide ring is located at the lower section of gas outlet and is located at the top of eddy flow foam removal assembly, the top of liquid mist synthesis gas entrance is located at by described eddy flow foam removal assembly, described eddy flow foam removal assembly includes conical shell, cover cylinder, blind plate, swirl vane and submerged soil and overflow pipe, described conical shell is fixed in rectifying column inner walls, described cover cylinder is fixedly arranged on conical shell, described submerged soil is located at cover cylinder top, described overflow pipe arranges along conical shell and connects with submerged soil, the plectane of perforate centered by described blind plate, described blind plate is located at bottom cover cylinder, described swirl vane is distributed in cover cylinder and is located at above blind plate, described swirl vane includes base, hypotenuse, connect limit and by base, hypotenuse and connection limit head and the tail connect and form triangular-section block face, described connection limit is connected with cover cylinder inwall upper extreme point, described one end, base is tangent with blind plate circumferential edge fixing, the described base other end is connected with cover cylinder inwall, described block face becomes 22.5-30 degree angle with blind plate.
2. a kind of liquid mist demister being applied to rectifying column according to claim 1, it is characterised in that: described block face and blind plate are 25 degree of angles.
3. a kind of liquid mist demister being applied to rectifying column according to claim 1, it is characterised in that: described swirl vane includes the hydrophobic skins, stainless steel layer and the hydrophobic primer that cover successively.
4. a kind of liquid mist demister being applied to rectifying column according to claim 1, it is characterized in that: described eddy flow foam removal assembly also includes adapter, elbow, lacing wire, gusset, described elbow is located at adapter lower end, described adapter connects with overflow pipe, described lacing wire is fixing takes in rectifying column inner walls, and described gusset strengthens fixing conical shell in rectifying column inner walls.
5. a kind of liquid mist demister being applied to rectifying column according to claim 1, it is characterised in that: described cover cylinder top is provided with several emptying drain holes, and described emptying drain hole and submerged soil are uniformly at intervals in cover cylinder top.
6. a kind of liquid mist demister being applied to rectifying column according to claim 1, it is characterized in that: described guide ring includes the first half hoop plate and the second half hoop plate, described half hoop plate is provided with some reinforcements, described half hoop plate side is provided with some pieces of triangle gussets and connects gusset, described connection gusset is symmetrically set in triangle gusset both sides, described dowel and triangle muscle junction are provided with guide pipe and lead, and the first described half hoop plate and the second half hoop plate are connected by screw bolt and nut.
CN201521013146.6U 2015-12-09 2015-12-09 Be applied to liquid fog demister of rectifying column Active CN205287879U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105413317A (en) * 2015-12-09 2016-03-23 深圳市瑞升华科技股份有限公司 Liquid spray foam remover applied to rectifying tower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105413317A (en) * 2015-12-09 2016-03-23 深圳市瑞升华科技股份有限公司 Liquid spray foam remover applied to rectifying tower

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