CN207119244U - The spray structure of four circulation DMF recovery towers - Google Patents
The spray structure of four circulation DMF recovery towers Download PDFInfo
- Publication number
- CN207119244U CN207119244U CN201720928358.XU CN201720928358U CN207119244U CN 207119244 U CN207119244 U CN 207119244U CN 201720928358 U CN201720928358 U CN 201720928358U CN 207119244 U CN207119244 U CN 207119244U
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- China
- Prior art keywords
- spray
- piece
- end plate
- circular end
- face
- 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.)
- Expired - Fee Related
Links
- 239000007921 spray Substances 0.000 title claims abstract description 114
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 230000004087 circulation Effects 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 25
- 230000007704 transition Effects 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 11
- 239000002912 waste gas Substances 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 229920002972 Acrylic fiber Polymers 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000002649 leather substitute Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 229930195734 saturated hydrocarbon Natural products 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Nozzles (AREA)
Abstract
A kind of spray structure of four circulations DMF recovery towers, it includes spray drum and connecting tube, the spray drum includes a circular end plate and a spherical tabular and outward flange is circular spray face-piece, the outward flange diameter of the circular end plate is identical with the rounded outer edge diameter of the spray face-piece, the rounded outer edge diameter of the spray face-piece is less than the spherical outside surface diameter on the spray face-piece, the sealed connection to match between the outward flange of the circular end plate and the outward flange of the spray face-piece, a spray chamber is surrounded out between the circular end plate and the spray face-piece, it is equally distributed on the spray face-piece to offer some spray apertures, the coaxial centre for being connected to the circular end plate in one end of the connecting tube, the connecting tube connects with the spray chamber, the other end of the connecting tube is connected with outside supplying valve.
Description
Technical field
Waste gas recovery equipment field is the utility model is related to, more particularly to a kind of spray structure of four circulations DMF recovery towers.
Background technology
, it is necessary to organic using substantial amounts of volatility when manufacturing the products such as PU (polyurethane) synthetic leather, acrylic fibers, transfer-film leather
Solvent DMF (N, N-Dimethylform aIlllde, DMF).DMF is at normal temperatures and pressures to be colourless
Bright liquid, slightly ammonia taste.DMF hygroscopicity is very strong, can with liquid, alcohol, ether, ester, ketone, have that saturated hydrocarbons, aromatic hydrocarbon etc. are miscible, but not
It is miscible with the saturated hydrocarbons such as gasoline, ethane, cyclohexane.When being surface-treated, leaching have DMF PU（Polyurethane）Synthetic leather,
When the products such as acrylic fibers, transfer-film leather are needed in airtight oven through 60~170 degree of high-temperature process, it at this moment can produce and largely contain DMF
Industrial tail gas, if these industrial tail gas without processing if be directly released into air, environment can be caused seriously to pollute,
Huge waste can be caused to ERM.
All there is spray equipment in traditional waste gas circulation recovery tower, waste gas absorption liquid is sprayed using spray equipment, to upper
The waste gas risen is absorbed.Several spray equipments are also equipped with existing four circulations DMF recovery towers, using described in several
Spray equipment the tail gas of rising is sprayed step by step, so as to fully absorb DMF waste gas in tail gas using spray liquid.It is existing
Spray equipment carry out feed flow often by the circulating pump of high pressure, while spray equipment uses fog-spray nozzle mostly, so as to
Reach makes fog-spray nozzle by spray liquid be in vaporific ejection using high-pressure circulation pump feed flow, although spraying can increase the diffusion of spray liquid
Scope, so as to effectively improve absorption efficiency to tail gas, but absorb after the DMF in tail gas can be with for vaporific spray liquid
Tail gas rises together, is finally discharged from the exhaust port of recovery tower upper end, causes substantial amounts of DMF waste gas and spray liquid to run out of,
Resource is not only wasted, is also polluted the environment.
Utility model content
The purpose of this utility model is to provide a kind of spray structure of four circulations DMF recovery towers, its skill to be solved
Art problem is：Absorption efficiency problem of the spray liquid to the DMF waste gas in tail gas is take into account in existing DMF recovery towers, is entered
And vaporific spray liquid is sprayed using fog-spray nozzle, reach the contact area of increase tail gas and spray liquid, improve the mesh of absorption efficiency
, but this mode can not only cause vaporific spray liquid to rise after DMF waste gas is absorbed with tail gas from recovery tower
Exhaust end discharge is held, not reaching reduces disposal of pollutants, the purpose of Resource recovery, and needs the higher cycle of higher pressure of cost
Pump and more accurate fog-spray nozzle, input be not worthwhile.
In order to solve the above technical problems, the utility model provides a kind of spray structure of four circulations DMF recovery towers, it includes
Spray drum and connecting tube, the spray drum includes a circular end plate and a spherical tabular and outward flange is circular spray face
Shell, the outward flange diameter of the circular end plate is identical with the rounded outer edge diameter of the spray face-piece, the spray face-piece
Rounded outer edge diameter is less than the spherical outside surface diameter on the spray face-piece, the outward flange of the circular end plate and the spray face
The sealed connection to match between the outward flange of shell, a spray chamber is surrounded out between the circular end plate and the spray face-piece,
It is equally distributed on the spray face-piece to offer some spray apertures, one end of the connecting tube it is coaxial be connected to the circle
The centre of end plate, the connecting tube are connected with the spray chamber, and the other end of the connecting tube is connected with outside supplying valve.
It is preferable over：Sphere centre on the spray face-piece to the distance between the circular end plate is no more than described
Spray 2/3rds of ectosphere radius surface on face-piece.
It is preferable over：The wide rounded shunting transition disc of outward flange wheel is hung with the spray chamber, it is described to shunt
Cross disk and the circular end plate is coaxial, the outer peripheral diameter of the shunting transition disc is straight more than the outward flange of the circular end plate
Footpath 3/5ths, less than the circular end plate outward flange diameter 4/5ths, it is described shunting transition disc outward flange with
It is reserved between the Internal Spherical Surface of the spray face-piece and passes through gap for spray liquid circulation.
It is preferable over：At least three connecting brackets are provided between the shunting transition disc and the circular end plate.
It is preferable over：The shunting spherical tabular of transition disc, and the indent sphere centre of spherical tabular and the connection
Pipe is corresponding.
It is compared with the prior art, is had the beneficial effect that caused by the utility model：
First, spray liquid can be dispersed into it is some respectively with it is described spray face-piece spherical outside surface it is vertical linear jet flow it is downward
Side and surrounding injection, while ensure that injection coverage, spray liquid will not be caused to be atomized, being capable of efficient absorption tail gas
In DMF waste gas, and backflow recovery is carried out in a manner of liquid；
2nd, simple in construction, cost is cheap, and effect is good, without the spray for relying on expensive high-pressure circulation pump offer high pressure conditions
Liquid is drenched, using ordinary cycle pump feed flow, and also it is durable in use, it is not easy to block spray apertures.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of embodiment one of the present utility model.
Fig. 2 is the cross section structure diagram of embodiment two of the present utility model.
Embodiment
Below with reference to accompanying drawing 1 and preferred embodiment to the utility model proposes a kind of four circulations DMF recovery towers
Spray structure is described in greater detail.
The utility model provides a kind of spray structure of four circulations DMF recovery towers, as shown in figure 1, embodiment one：
It includes spraying drum 1 and connecting tube 2, and the spray drum 1 includes a circular end plate 11 and a spherical tabular and outer
Edge is circular spray face-piece 12, the outward flange diameter of the circular end plate 11 and the rounded outer edge for spraying face-piece 12
Diameter is identical, and the rounded outer edge diameter of the spray face-piece 12 is less than the spherical outside surface diameter on the spray face-piece 12, described
The sealed connection to match between the outward flange of circular end plate 11 and the outward flange of the spray face-piece 12, the circular end plate 11
Outward flange and it is described spray face-piece 12 outward flange between sealing welding, the circular end plate 11 with it is described spray face-piece 12 it
Between surround out a spray chamber, it is equally distributed on the spray face-piece 12 to offer some spray apertures 13, the one of the connecting tube 2
The coaxial centre for being connected to the circular end plate 11 in end, the centre of the circular end plate 11 is reserved with an internal diameter not
More than the connecting hole of the external diameter of the connecting tube 2, one end of the connecting tube 2 and the connecting hole split and sealing welding, institute
State connecting tube 2 to connect with the spray chamber, the other end of the connecting tube 2 is connected with outside supplying valve, and then can make outside
The spray liquid of conveying can be delivered in the spray chamber by the connecting tube 2, and is had some on the spray face shell 12
Spray apertures 13 are dispersed into some linear jet aspersions and come out.
Sphere centre to the distance between the circular end plate 11 on the spray face-piece 12 is no more than the spray
2/3rds of ectosphere radius surface on face-piece 12 are drenched, so as to prevent the spray chamber volume excessive, cause the connecting tube 2 to convey
Spray liquid pressure into the spray chamber, which is played, to be subtracted and is sprayed without normal direction surrounding.
As shown in Fig. 2 embodiment two：On the basis of embodiment one, outward flange wheel is hung with the spray chamber
Wide rounded shunting transition disc 3, the shunting transition disc 3 and the circular end plate 11 are coaxial, outside the shunting transition disc 3
The diameter at edge is more than 3/5ths of the outward flange diameter of the circular end plate 11, outward flange less than the circular end plate 11
It is reserved between the Internal Spherical Surface of 4/5ths of diameter, the outward flange of the shunting transition disc 3 and the spray face-piece 12 for spray
Drench liquid stream it is logical by gap, the present embodiment in the specific implementation, the spray being conveyed into by the connecting tube 2 in the spray chamber
Liquid is first dropped down onto on the shunting transition disc 3, is shunted from the shunting transition disc 3 to surrounding, and then spray liquid is entered the spray
With the way of contact of the spray face-piece 12 it is by upper end surrounding to bottom, so as to ensure that liquid stream has to surrounding after leaching chamber
The inertial force of flowing so that the linear jet flow sprayed to surrounding also has enough pressure, can further expand spray
Drench coverage；At least three connecting brackets 31 are provided between the shunting transition disc 3 and the circular end plate 11, using extremely
The shunting transition disc 3 is fixed and is suspended in the spray chamber positioned at the connecting tube 2 by few three connecting brackets 31
Underface.
Further, the shunting 3 spherical tabular of transition disc, and the indent sphere centre of spherical tabular and the connection
Pipe is corresponding, and the sphere of indent can be utilized to guide the spray liquid poured in the shunting transition disc 3 to surrounding upside and splashed,
So that the linear jet flow pressure sprayed to surrounding is stronger.
Described in synthesis, the technical solution of the utility model can complete above-mentioned purpose of utility model with sufficiently effective, and
Structural principle of the present utility model and the principle of work and power have all sufficiently been verified in embodiment, and can reach expected work(
Effect and purpose, and embodiment of the present utility model can also enter line translation according to these principles, therefore, the utility model includes one
Cut all replacement contents in the range of being previously mentioned in claim.Any institute in present utility model application the scope of the claims
The equivalence changes of work, all within the scope of the claims of category this case application.
Claims (5)
- A kind of 1. spray structure of four circulations DMF recovery towers, it is characterised in that：Including spray drum and connecting tube, the spray bulge Include a circular end plate and a spherical tabular and outward flange is circular spray face-piece, the outward flange diameter of the circular end plate Identical with the rounded outer edge diameter of the spray face-piece, the rounded outer edge diameter of the spray face-piece is less than the spray face The sealing to match between the outward flange of spherical outside surface diameter on shell, the outward flange of the circular end plate and the spray face-piece connects Connect, a spray chamber is surrounded out between the circular end plate and the spray face-piece, it is described to spray equally distributed on face-piece open up Have some spray apertures, the coaxial centre for being connected to the circular end plate in one end of the connecting tube, the connecting tube with The spray chamber connection, the other end of the connecting tube are connected with outside supplying valve.
- 2. the spray structure of four circulations DMF recovery towers as claimed in claim 1, it is characterised in that：On the spray face-piece Sphere centre to the distance between the circular end plate is no more than 2/3rds of ectosphere radius surface on the spray face-piece.
- 3. the spray structure of four circulations DMF recovery towers as claimed in claim 2, it is characterised in that：Hang and set in the spray chamber There is the wide rounded shunting transition disc that an outward flange is taken turns, the shunting transition disc and the circular end plate are coaxial, the shunting The outer peripheral diameter of transition disc is more than 3/5ths of the outward flange diameter of the circular end plate, less than the circular end plate Confession is reserved between the Internal Spherical Surface of 4/5ths of outward flange diameter, the outward flange of the shunting transition disc and the spray face-piece Spray liquid circulation passes through gap.
- 4. the spray structure of four circulations DMF recovery towers as claimed in claim 3, it is characterised in that：It is described shunting transition disc with At least three connecting brackets are provided between the circular end plate.
- 5. the spray structure of four circulations DMF recovery towers as claimed in claim 4, it is characterised in that：It is described shunting transition disc be in Sphere tabular, and the indent sphere centre of spherical tabular is corresponding with the connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720928358.XU CN207119244U (en) | 2017-07-28 | 2017-07-28 | The spray structure of four circulation DMF recovery towers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720928358.XU CN207119244U (en) | 2017-07-28 | 2017-07-28 | The spray structure of four circulation DMF recovery towers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207119244U true CN207119244U (en) | 2018-03-20 |
Family
ID=61613229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720928358.XU Expired - Fee Related CN207119244U (en) | 2017-07-28 | 2017-07-28 | The spray structure of four circulation DMF recovery towers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207119244U (en) |
-
2017
- 2017-07-28 CN CN201720928358.XU patent/CN207119244U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 |