CN110124460A - A kind of methanol air water cleaning of evaporator - Google Patents

A kind of methanol air water cleaning of evaporator Download PDF

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Publication number
CN110124460A
CN110124460A CN201810130938.3A CN201810130938A CN110124460A CN 110124460 A CN110124460 A CN 110124460A CN 201810130938 A CN201810130938 A CN 201810130938A CN 110124460 A CN110124460 A CN 110124460A
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CN
China
Prior art keywords
methanol
gas
plate
space
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810130938.3A
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Chinese (zh)
Inventor
王以斌
豆宝宜
程继元
丁梅峰
姚建军
王文昊
郭维军
李战杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinopec Engineering Group Co Ltd
Sinopec Guangzhou Engineering Co Ltd
Original Assignee
Sinopec Engineering Group Co Ltd
Sinopec Guangzhou Engineering Co Ltd
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Application filed by Sinopec Engineering Group Co Ltd, Sinopec Guangzhou Engineering Co Ltd filed Critical Sinopec Engineering Group Co Ltd
Priority to CN201810130938.3A priority Critical patent/CN110124460A/en
Publication of CN110124460A publication Critical patent/CN110124460A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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
    • B01D53/1406Multiple stage absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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
    • B01D53/1487Removing organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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
    • B01D53/18Absorbing units; Liquid distributors therefor

Abstract

The invention discloses a kind of methanol air water cleaning of evaporators, including horizontal tank body, horizontal top of the tank is equipped with methanol gas inlet pipe and elution water inlet, bottom is equipped with bath wash water import, side end socket is equipped with clean gas outlet, other side end socket is equipped with overflow water out, washing water distribution grid is equipped in horizontal tank inner chamber from top to bottom, cushion chamber top plate and buffering bottom of chamber plate, space between washing water distribution grid and cushion chamber top plate is elution space, space between cushion chamber top plate and cushion chamber bottom plate is methanol gas cushion space, space below cushion chamber bottom plate is that space is washed in bath, overflow pipe is arranged on washing water distribution grid, purified gas riser is arranged between washing water distribution grid and cushion chamber top plate, cushion chamber bottom plate arranged beneath methanol gas down-comer.Using methanol air water cleaning of evaporator of the invention, incoming flow methanol gas can sufficiently be buffered, by bath wash with elution be combined with each other in the way of, promote the high-efficient contact of methanol gas and washing water, reaching the washing of methanol gas, flowing is steady, good absorption effect.

Description

A kind of methanol air water cleaning of evaporator
Technical field
The invention belongs to the methanol gas disposal technology in gas purification technique field, in particular to a kind of methanol air water is washed Tank.
Background technique
Methanol has a wide range of applications in petrochemical industry, is not only important industrial chemicals, but also is that performance is excellent The good energy and vehicle fuel.With the rise of coal chemical industry, methanol more highlights its important value as intermediate raw material.Methanol has The toxicity of toxicity, methanol influences maximum to the nervous system of human body and hematological system, it takes in through alimentary canal, respiratory tract or skin Toxic reaction will be generated, the respiratory mucosa and eyesight that methanol vapor energy loss victimizes.It must be worn in the work on the spot for having methanol gas Breathing mask.
The storage tank that petrochemical industry is used to store methanol is passed through frequently with nitrogen-sealed, and storage tank can be discharged when superpressure is discharged Harmful gas containing methanol (mixed gas of methanol gas and nitrogen) out, it is necessary to can just be discharged into atmosphere by purified treatment.Currently, often Method that the characteristics of being dissolved each other completely using methanol and water is washed with water handles gas containing methanol (and methanol gas).Chinese patent CN104275073A discloses a kind of methanol aspiration method and device, has been horizontally disposed in horizontal water washing tank used with sieve The methanol tracheae in hole and fresh water pipe with sieve pore.Methanol tracheae with sieve pore be located at water-bath water in water washing tank surface it Under, the fresh water pipe with sieve pore is arranged in water-bath water surface.Fresh length of pipe with sieve pore, which is greater than, has sieve pore Methanol tracheae length, with sieve pore fresh water pipe sieve pore spray radiation areas envelope methanol air sifter bore region.Normally In the case of, methanol gas is absorbed by water-bath;Methanol gas is eluted when saturation state needs to replace when methanol aqueous solution reaches Washing.When water-bath absorbs, methanol gas is entered in water-bath water by the methanol tracheae with sieve pore to be absorbed.When elution washing, methanol Gas from sieve pore methanol tracheae enter water-bath water and from water-bath water evolution flow up, with sieve pore fresh water pipe to Fresh water (washing water) counter current contacting of lower spray is absorbed.But there are the following problems for the technology: (1) gas containing methanol enters and has There is no enough spaces to be buffered after the methanol tracheae of sieve pore, the pressure oscillation in pipe everywhere is larger;(2) when gas containing methanol from Air-flow is unstable, uneven when sieve pore flows out, and is easy to escape and the sieve pore airless of distant place from sieve pore nearby, flow disorderly Disorderly, poor with the contact condition of water-bath water;(3) when above-mentioned gas containing methanol is flowed up from water-bath water evolution and with sieve pore The washing water counter current contacting that sprays downwards of fresh water pipe when carrying out elution washing, it is uneven due to gas overflowing, with elution The contact condition of water is also poor.This will affect absorption of the water to methanol gas, keep water washing effect poor;(4) with sieve pore The washing water that fresh water pipe sprays downwards be difficult the gas containing methanol that will flow up always completely effectively covering and high-efficient contact, Some gas containing methanol have when elution washing without washing i.e. discharge water washing tank, water washing effect is difficult to reliably be guaranteed.
Summary of the invention
The object of the present invention is to provide a kind of methanol air water cleaning of evaporator, to solve, gas-liquid contact in the prior art is uneven, wave The problems such as dynamic violent, water washing effect is poor.Using methanol air water cleaning of evaporator of the invention, incoming flow methanol gas can sufficiently be buffered, By bath wash with elution be combined with each other in the way of, promote methanol gas and washing water high-efficient contact, reach the washing of methanol gas Flow steady, good absorption effect.
The present invention provides a kind of methanol air water cleaning of evaporator, and technical solution is:
A kind of methanol air water cleaning of evaporator, including horizontal tank body, horizontal tank body is by horizontal cylindrical shape cylinder and positioned at the end socket at its both ends Composition, it is characterised in that: the horizontal top of the tank is equipped with methanol gas inlet pipe (2) and elution water inlet, and bottom is equipped with bath and washes Water inlet, side end socket are equipped with clean gas outlet, and other side end socket is equipped with overflow water out, from upper in horizontal tank inner chamber And washing water distribution grid, cushion chamber top plate and buffering bottom of chamber plate are had, washing water distribution grid, cushion chamber top plate and buffering bottom of chamber Plate is horizontally disposed plate, and edge is connected with the inner wall of horizontal tank body, between washing water distribution grid and cushion chamber top plate Space is elution space, and space between cushion chamber top plate and cushion chamber bottom plate is methanol gas cushion space, under cushion chamber bottom plate The space of side is that space is washed in bath, and overflow pipe is arranged on washing water distribution grid, is arranged between washing water distribution grid and cushion chamber top plate Purified gas riser, cushion chamber bottom plate arranged beneath methanol gas down-comer, methanol gas inlet pipe pass through washing water distribution grid and first Space, the connection bath of purified gas riser are washed in the connection of alcohol gas cushion space, methanol gas down-comer connection methanol gas cushion space and bath Space and elution space are washed, clean gas outlet is connected to elution space, bathes wash water import and overflow water out washes space with bath Connection.
The present invention is further technically characterized in that the methanol gas inlet pipe is located at horizontal tank body top center, vertically to Lower installation, across the center of the through cushion chamber top plate of washing water distribution grid.
The present invention is further technically characterized in that the clean gas outlet is located on the end socket of horizontal tank body side, setting Between washing water distribution grid and cushion chamber top plate, connection elution space, bath wash water import is located at the lateral recumbent posture tank base, overflows Flowing water outlet is located on the end socket of the horizontal tank body other side, and vertical position is in 50~100mm of bath wash water liquid level or less.
The present invention is further technically characterized in that the elution water inlet is located at horizontal top of the tank and methanol gas import Pipe differs certain circumferential angle α inclination installation, and the angle α is 15 °~30 °, is installed straight up.
The present invention is further technically characterized in that the washing water distribution grid side space height accounts for entire horizontal tank body height Ratio between 1/6~1/5.
The present invention is further technically characterized in that the interior diameter of the overflow pipe (16) is 10~30 millimeters, is highly 20~60 millimeters, overflow pipe forms two regular rectangular regions, respectively by rectangle or the arrangement of the regular shape of triangle Positioned at the two sides of methanol gas inlet pipe, the close beneath region for eluting water inlet is not provided with overflow pipe.
The present invention is further technically characterized in that each overflow pipe (16) and purified gas riser below one by one It is corresponding and concentric.
The present invention is further technically characterized in that the methanol gas decline nozzle is located at below gas cushion chamber top plate, methanol Gas down-comer is vertically-mounted, is evenly arranged in the two sides of cushion chamber top plate, and methanol gas down-comer interior diameter is 10~30mm, protrudes into 50~100mm below washing water liquid level;Purified gas riser entrance is located at cushion chamber top plate, and outlet is located at washing water distribution grid, It is evenly arranged in the middle position of methanol gas cushion chamber, purified gas riser interior diameter is 10~30mm, in the width of horizontal tank body It spends on direction, purified gas riser is arranged in 1/4~1/3 that middle position occupies horizontal tank diameter, methanol gas down-comer cloth The two sides of purified gas riser are placed in, every side occupies the 1/4~1/3 of horizontal tank diameter, in the length direction of horizontal tank body On, methanol gas down-comer and purified gas riser are advised in the shape that rectangle or triangle are respectively pressed in the two sides of methanol gas inlet pipe Then arrange.
The present invention is further technically characterized in that the overflow pipe, methanol gas down-comer and purified gas riser are respectively set Set tens to several hundred.
A kind of methanol air water cleaning of evaporator of the present invention is mainly used for washing the gas containing methanol of the industries such as petrochemical industry, equally Washing process suitable for liquid ammonia storage tank discharge gas (ammonia level is below 20%) etc..
Compared with the prior art, the invention has the following beneficial effects: (1) methanol gas has in the cushion space being specially arranged Enough spaces and residence time are buffered, and methanol stream is dynamic steadily after buffering, is evenly distributed, pressure wave everywhere It is dynamic less, can it is steady from methanol gas down-comer with certain speed, wash in the water-bath water in space and carry out evenly into bath First wash, it is preferable with the contact condition of water-bath water, water-bath water will not be made biggish irregular fluctuation occur, reach raising water Wash the purpose of effect.Gas containing methanol after first wash also can more smoothly escape into water-bath water surface, through more From many places evenly into elution space after the redistribution of root cross over pipe, the washing water flowed downward out with overflow boss is preferably connect Touching keeps elution effect preferable.(2) the methanol gas in methanol gas cushion space is all downwardly into bath by methanol gas down-comer and washes sky First wash is carried out in interior water-bath water, the methanol gas after washing all flows through cross over pipe and enters elution space and washing water Counter current contacting carries out secondary washing.Therefore, the present invention with exhaustive can wash gas containing methanol, be not in one The case where water washing tank is discharged without washing for a little gas containing methanol.Methanol gas can be substantially absorbed completely, and water washing effect can Reliably guaranteed.(3) water washing operations twice are washed and eluted to gas containing methanol by bath in water washing tank of the invention, effect compared with It is good.Quiet run may be implemented using the present invention, increase the gas containing methanol of unit volume and the contact area of washing water, raising water Wash water is good to the water washing effect of the gas containing methanol, degree of purification is high to the absorptivity of methanol gas.Present invention is mainly used for petroleum The gas containing methanol of the industries such as work is washed.
Detailed description of the invention
Fig. 1 is a kind of simple structure schematic diagram of methanol air water cleaning of evaporator of the present invention.
Fig. 2 is a kind of methanol air water cleaning of evaporator lateral structure schematic diagram of the present invention.
Fig. 3 is a kind of methanol air water cleaning of evaporator structure three-dimensional view of the present invention (part-structure is not shown).
Fig. 4 is a kind of methanol air water cleaning of evaporator riser of the present invention and downspout section view.
Fig. 5 is a kind of methanol air water cleaning of evaporator washing water distribution grid 3-D view of the present invention.
Same reference numerals indicate identical technical characteristic in Fig. 1~5.
Wherein, in Fig. 1~5: the horizontal tank body of 1-, 2- methanol gas inlet pipe, 3- clean gas outlet, 4- elute water inlet, 5- Bathe wash water import, 6- overflow water out, 7- washing water distribution grid, 8- cushion chamber top plate, 9- cushion chamber bottom plate, 10- purification gas lift Tracheae, 11- methanol gas down-comer, 12- elute space, 13- methanol gas cushion space, and space, 15- end socket are washed in 14- bath, and 16- overflows Flow tube, 17- liquid level.
Specific embodiment
Referring to attached drawing 1~5.
A kind of methanol air water cleaning of evaporator, including horizontal tank body 1, horizontal tank body 1 is by horizontal cylindrical shape cylinder and is located at its both ends End socket 15 form, methanol gas inlet pipe 2 and elution water inlet 4 are equipped at the top of horizontal tank body 1, bottom is equipped with bath wash water import 5, Side end socket 15 is equipped with clean gas outlet 3, and other side end socket 15 is equipped with overflow water out 6, from upper in horizontal 1 inner cavity of tank body And washing water distribution grid 7, cushion chamber top plate 8 and buffering bottom of chamber plate 9 are had, washing water distribution grid 7, cushion chamber top plate 8 are gentle Rushing bottom of chamber plate 9 is horizontally disposed plate, and edge is connected with the inner wall of horizontal tank body 1, washing water distribution grid 7 and cushion chamber top Space between plate 8 is elution space 12, and the space between cushion chamber top plate 8 and cushion chamber bottom plate 9 is methanol gas cushion space 13, the space of 9 lower section of cushion chamber bottom plate is that space 14 is washed in bath, arranges overflow pipe 16 above washing water distribution grid 7, elutes water distribution Purified gas riser 10,9 arranged beneath methanol gas down-comer 11 of cushion chamber bottom plate, methanol are arranged between plate 7 and cushion chamber top plate 8 Gas inlet pipe 2 passes through washing water distribution grid 7 and is connected to methanol gas cushion space 13, and methanol gas down-comer 11 is connected to methanol gas buffering Space 14 is washed in space 13 and bath, and space 14 and elution space 12, clean gas outlet 3 and elution are washed in the connection bath of purified gas riser 10 Space 12 is connected to, and bathes wash water import 5 and overflow water out 6 is washed space 14 with bath and is connected to.
The methanol gas inlet pipe 2 is normally at horizontal 1 top center of tank body, installs straight down, passes through elution moisture Fabric swatch 7 goes directly the center of cushion chamber top plate 8.
Clean gas outlet 3 is normally on the end socket 15 of horizontal 1 side of tank body that (shown in Fig. 1, clean gas outlet 3 is located at sleeping On 1 left side end socket 15 of formula tank body), it is arranged between washing water distribution grid 7 and cushion chamber top plate 8, connection elution space 12, bath is washed Water inlet 5 is located at 1 bottom of lateral recumbent posture tank body (shown in Fig. 1, bath wash water import 5 is located at horizontal 1 left bottom of tank body);Overflow water Outlet 6, which is located on horizontal 1 other side end socket 15 of tank body, is horizontally mounted that (shown in Fig. 1, it is right that overflow water out 6 is located at horizontal tank body 1 On side seal head 15), vertical position is in bath 17 or less 50~100mm of wash water liquid level, the installation control water washing tank liquid of overflow water out 6 The small water seal (showing in figure) of position, the elution water inlet 4 are located at horizontal 1 top of tank body and the difference of methanol gas inlet pipe 2 one Determine circumferential angle α inclination installation, the angle α is usually to install straight up between 15 °~30 °.
7 upper space of the washing water distribution grid height accounts for the ratio of entire horizontal 1 height of tank body 1/6~1/5 or so. The center of washing water distribution grid 7 opens up the channel that circular hole is connect as methanol gas inlet pipe 2 with methanol gas cushion space 13, Welding forms excellent sealing completely between the channel and methanol gas inlet pipe 2.
The interior diameter of the overflow pipe 16 is generally 10~30 millimeters, and generally 20~60 millimeters of height, as overflow Water enters below washing water distribution grid 7 the channel formation extraction effect for eluting space 12.Overflow pipe 16 is by rectangle, triangle etc. Regular shape arrangement, forms two regular long narrow square regions, is located at the two sides of methanol gas inlet pipe 2.
It is not provided with overflow pipe 16 in the underface near zone of elution water inlet 4, in order to avoid the water flowed down from elution water inlet 4 Wash water directly enters elution space 12 through overflow pipe 16, and elution is caused to fail.Each overflow pipe 16 and purification gas lift below Tracheae 10 corresponds and concentric, the direct process bath with purified gas riser 10 of the water for facilitating 16 overflow of overflow pipe to get off The purified gas washed forms backwash effect reinforcing elution effect in purified gas riser 10 and passes through purification gas lift gas convenient for washing water Pipe 10 enters elution space 12.
Space among cushion chamber top plate 8 and cushion chamber bottom plate 9 is methanol gas cushion space 13, enters washing for buffering The methanol gas of tank, methanol gas cushion chamber 13 will have sufficiently large volume, gas containing methanol made to have enough residence times to obtain sufficiently Buffering, residence time should generally control at 3~5 minutes.Especially, gas containing methanol is in methanol gas cushion space 13 by buffering Afterwards, should flow it is steady, be evenly distributed, pressure oscillation everywhere it is little, can stably enter methanol gas down-comer 11 and from Methanol gas down-comer 11 stably enters bath and washes in the water-bath water in space 14, and water-bath water is not made biggish irregular wave occur It is dynamic, achieve the purpose that improve water washing effect.
11 entrance of methanol gas down-comer is located at 8 lower section of gas cushion chamber top plate, and methanol gas down-comer 11 is vertically-mounted, uniform cloth The two sides of cushion chamber top plate 8 are placed in, 11 interior diameter of methanol gas down-comer is generally 10~30mm, protrudes into 17 or less washing water liquid level 50~100mm.The air velocity that should generally control in methanol gas down-comer 11 is generally 0.2~0.5m/s.Purified gas riser 10 entrances are located at cushion chamber top plate 8, and outlet is located at washing water distribution grid 7, connect bath and wash space 14 and elution space 12 as bath Purified gas after washing enters the channel in elution space 12, is evenly arranged in the middle position of methanol gas cushion chamber 13.Purify gas lift 10 interior diameter of tracheae is generally 10~30mm.In the width direction of horizontal tank body 1, purified gas riser 10 is arranged in interposition It sets and occupies 1/4~1/3 or so of horizontal 1 diameter of tank body, methanol gas down-comer 11 is arranged in the two sides of purified gas riser 10, often Side occupies 1/4~1/3 or so of horizontal 1 diameter of tank body.On the length direction of horizontal tank body 1, methanol gas down-comer 11 with Purified gas riser 10 respectively presses the regular shapes such as rectangle, triangle arrangement formation rule in the two sides of methanol gas inlet pipe 2 Rectangle.
Overflow pipe 16, methanol gas down-comer 11, purified gas riser 10 can be set individually tens to several hundred.In pipe In the case that sub- diameter is certain, the radical of purified gas riser 10 mainly according to after first wash amount containing methanol stream and Depending on the flow of washing water that elution space 12 flows down, allow them to swimmingly to flow through and from many places respectively evenly into Elution space 12 and bath are washed in the water-bath water in space 14.The radical of overflow pipe 16 is mainly eluted according in elution space 12 Rear methanol stream amount and depending on the flow for the washing water that 7 overflow of washing water distribution grid enters overflow pipe 16, makes overflow The washing water that pipe 16 flows out can be from many places respectively evenly into elution space 12.The main root of radical of methanol gas down-comer 11 Depending on treating capacity according to methanol gas, can make the methanol gas in methanol gas cushion space 13 flowed in methanol gas down-comer 11 and from Many places enter bath and wash in the water-bath water in space 14.
Fresh water enters 7 upper space of washing water distribution grid through elution water inlet 4 and falls on washing water distribution grid 7, then Overflow enters overflow pipe 16 and is downwardly into elution space 12 along the inner wall of overflow pipe 16, flows downward in elution space 12, Methanol gas countercurrent after washing with the bath flowed up in elution space 12, which contacts, to be eluted;Elution is i.e. in elution space 12 Washing of the interior washing water to the gas containing methanol after first wash.Above-mentioned elution and the gas-liquid in purified gas riser 10 Adverse current is second wash;Water, gas time of contact and contact area can be increased using counter current contacting washing, improved to methanol gas Absorption efficiency.Gas containing methanol becomes purified gas after second wash, by being discharged by clean gas outlet pipe 3.
It is downward by purified gas riser 10 as supplement water to elute used washing water (methanol content is lower) in space 12 It is washed in the water-bath water in space 14 into bath, while the higher water-bath water of a part of methanol content is by 6 outflow water of overflow water out Cleaning of evaporator.In this manner it is possible to control 17 height of liquid level that bath is washed in space 14, and bath is kept to wash the water-bath water in space 14 to first The absorbability of alcohol gas (note: the following are water-bath waters for liquid level 17).
The material of each component of the present invention is generally stainless steel (such as 304 stainless steels), and the connection between component generally uses Welding.
The course of work washed using above-mentioned methanol air water cleaning of evaporator to methanol gas is as follows:
Methanol gas (content is 20% hereinafter, remaining is the inert gases such as nitrogen) enters methanol gas from methanol gas inlet pipe 2 and delays first Rush space 13;Methanol gas after buffering, methanol gas along be installed on the methanol gas down-comer 11 of methanol gas cushion chamber bottom plate 9 to Under flow into 17 or less water-bath water liquid level carry out bath wash operation;Purified gas after washing by bath is passed through across cushion chamber top plate 8 Enter the elution space 12 between washing water distribution grid 7 and cushion chamber top plate 8 with the purified gas riser 10 of cushion chamber bottom plate 9; Washing water on washing water distribution grid 7, then enters elution 12 shape of space through 16 overflow of overflow pipe through the elution impact of water inlet 4 It carries out secondary elution to methanol gas at elution effect to absorb, the purified gas outlet 3 of purified gas is discharged into atmosphere.Washing water is through bathing wash water Import 5 washes space 14 into bath and carries out moisturizing formation running water, and washing waste water flows out horizontal tank body 1, overflow through overflow water out 6 Small water seal is installed for controlling bath wash water liquid level (showing in figure) at water out 6.

Claims (9)

1. a kind of methanol air water cleaning of evaporator, including horizontal tank body (1), horizontal tank body (1) by horizontal cylindrical shape cylinder and be located at its two The end socket (15) at end forms, it is characterised in that: be equipped at the top of the horizontal tank body (1) methanol gas inlet pipe (2) and washing water into Mouth (4), bottom are equipped with bath wash water import (5), and side end socket (15) is equipped with clean gas outlet (3), on other side end socket (15) Equipped with overflow water out (6), washing water distribution grid (7), cushion chamber top plate (8) are equipped in horizontal tank body (1) inner cavity from top to bottom With buffering bottom of chamber plate (9), washing water distribution grid (7), cushion chamber top plate (8) and buffering bottom of chamber plate (9) are horizontally disposed flat Plate, edge are connected with the inner wall of horizontal tank body (1), and the space between washing water distribution grid (7) and cushion chamber top plate (8) is elution Space (12), the space between cushion chamber top plate (8) and cushion chamber bottom plate (9) are methanol gas cushion space (13), cushion chamber bottom Space below plate (9) is that bath is washed space (14), arranges overflow pipe (16) on washing water distribution grid (7), washing water distribution grid (7) Purified gas riser (10) are arranged between cushion chamber top plate (8), cushion chamber bottom plate (9) arranged beneath methanol gas down-comer (11), methanol gas inlet pipe (2) passes through washing water distribution grid (7) and is connected to methanol gas cushion space (13), methanol gas down-comer (11) methanol gas cushion space (13) are connected to and bath is washed space (14), space (14) and leaching are washed in purified gas riser (10) connection bath Wash space (12), clean gas outlet (3) with elution space (12) be connected to, bath wash water import (5) and overflow water out (6) with bath Wash space (14) connection.
2. a kind of methanol air water cleaning of evaporator according to claim 1, it is characterised in that: the methanol gas inlet pipe (2) is located at Horizontal tank body (1) top center, is installed straight down, passes through the centre bit of washing water distribution grid (7) through cushion chamber top plate (8) It sets.
3. a kind of methanol air water cleaning of evaporator according to claim 1, it is characterised in that: the clean gas outlet (3) is located at sleeping On the end socket (15) of formula tank body (1) side, it is arranged between washing water distribution grid (7) and cushion chamber top plate (8), connection elution is empty Between (12), bath wash water import (5) be located at lateral recumbent posture tank body (1) bottom, it is another that overflow water out (6) is located at horizontal tank body (1) On side seal head (15), vertical position is in bath wash water liquid level (17) 50~100mm below.
4. a kind of methanol air water cleaning of evaporator according to claim 1, it is characterised in that: the elution water inlet (4) is located at sleeping At the top of formula tank body (1) and methanol gas inlet pipe (2) differs certain circumferential angle α inclination installation, and the angle α is 15 °~30 °, vertically to Upper installation.
5. a kind of methanol air water cleaning of evaporator according to claim 1, it is characterised in that: above the washing water distribution grid (7) Spatial altitude accounts for the ratio of entire horizontal tank body (1) height between 1/6~1/5.
6. a kind of methanol air water cleaning of evaporator according to claim 1, it is characterised in that: the interior diameter of the overflow pipe (16) is equal It is 10~30 millimeters, is highly 20~60 millimeters, overflow pipe (16) forms two by rectangle or the arrangement of the regular shape of triangle The rectangular region of a rule is located at the two sides of methanol gas inlet pipe (2), elutes the close beneath region of water inlet (4) It is not provided with overflow pipe (16).
7. a kind of methanol air water cleaning of evaporator according to claim 1, it is characterised in that: under each overflow pipe (16) and its Side purified gas riser (10) correspond and it is concentric.
8. a kind of methanol air water cleaning of evaporator according to claim 1, it is characterised in that: methanol gas down-comer (11) entrance Below gas cushion chamber top plate (8), methanol gas down-comer (11) is vertically-mounted, is evenly arranged in the two of cushion chamber top plate (8) Side, methanol gas down-comer (11) interior diameter are 10~30mm, protrude into washing water liquid level (17) 50~100mm below;Purify gas lift Tracheae (10) entrance is located at cushion chamber top plate (8), and outlet is located at washing water distribution grid (7), is evenly arranged in methanol gas cushion chamber (13) middle position, purified gas riser (10) interior diameter are 10~30mm, in the width direction of horizontal tank body (1), only Change gas lift tracheae (10) and is arranged in middle position occupies horizontal tank body (1) diameter 1/4~1/3, methanol gas down-comer (11) cloth The two sides of purified gas riser (10) are placed in, every side occupies the 1/4~1/3 of horizontal tank body (1) diameter, in horizontal tank body (1) Length direction on, methanol gas down-comer (11) is respectively pressed with purified gas riser (10) in the two sides of methanol gas inlet pipe (2) Rectangle or the arrangement of the regular shape of triangle.
9. a kind of methanol air water cleaning of evaporator according to claim 1, it is characterised in that: under the overflow pipe (16), methanol gas Drop pipe (11) and purified gas riser (10) respectively setting tens to several hundred.
CN201810130938.3A 2018-02-09 2018-02-09 A kind of methanol air water cleaning of evaporator Pending CN110124460A (en)

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