CN203108246U - Methanol vaporization tower kettle - Google Patents
Methanol vaporization tower kettle Download PDFInfo
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- CN203108246U CN203108246U CN 201320142173 CN201320142173U CN203108246U CN 203108246 U CN203108246 U CN 203108246U CN 201320142173 CN201320142173 CN 201320142173 CN 201320142173 U CN201320142173 U CN 201320142173U CN 203108246 U CN203108246 U CN 203108246U
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- methyl alcohol
- vaporization tower
- alcohol vaporization
- tower
- dimethyl ether
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Abstract
The utility model discloses an anti-corrosion methanol vaporization tower kettle, which relates to the technical field of chemical engineering production and manufacture. The anti-corrosion methanol vaporization tower kettle comprises a methanol vaporization tower, a metering pump and a dimethyl ether distillation tower, wherein the methanol vaporization tower, the metering pump and the dimethyl ether distillation tower are sequentially connected through pipelines, the methanol vaporization tower is provided with an on-line PH detector, a programmable controller is arranged between the metering pump and the on-line PH detector, and an alkali adding device is arranged in the middle of the pipeline between the dimethyl ether distillation tower and the methanol vaporization tower. The anti-corrosion methanol vaporization tower kettle has the advantage that through the matching of the on-line PH detector, the metering pump and the alkali adding device, kettle liquid of methanol and water going out from the dimethyl ether distillation tower is enabled to be alkalescent when entering the methanol vaporization tower kettle.
Description
Technical field
The utility model relates to Chemical Manufacture manufacturing technology field, relates in particular to a kind of anti-corrosion methyl alcohol vaporization tower reactor.
Background technology
Dimethyl ether is a kind of rising chemical products.It is as industrial chemicals, except being used for aerosol industry, alternative CFC uses to reduce the destruction of aerosol to atmospheric ozone layer as the spray carrier, still produce the intermediate of synthetic gasoline and alkene, alternative traditional oil is produced the production route of gasoline and alkene.Dimethyl ether is a kind of desirable clean fuel especially, is the diesel oil substitute of a large amount of consumption, can be used as the LPG that domestic fuel replaces large consumption again.
The method of at present traditional industrial production dimethyl ether is that methyl alcohol dewaters under the effect of catalyst, the preparation dimethyl ether.And in preparation dimethyl ether process, need methyl alcohol is carried out vaporization process, but owing to adopt the Methanol Recovery device, the methyl alcohol that the dimethyl ether rectifying column comes out and water circulation fluid have acidic materials when entering methyl alcohol vaporization tower, the tower reactor that causes vaporizing has obvious corrosion phenomenon, and a large amount of thinning phenomenons take place the tower reactor wall thickness.
Summary of the invention
(1) technical problem that will solve
The technical problems to be solved in the utility model is that the still liquid of the methyl alcohol that how to guarantee to come out from the dimethyl ether rectifying column and water keeps alkalescent when entering methyl alcohol vaporization tower.
(2) technical scheme
In order to address the above problem, the utility model provides a kind of methyl alcohol vaporization tower reactor to comprise: methyl alcohol vaporization tower, measuring pump, dimethyl ether destilling tower, described methyl alcohol vaporization tower, measuring pump, dimethyl ether destilling tower pipeline successively connect, described methyl alcohol vaporization tower is equipped with online PH checkout gear, be provided with Programmable Logic Controller between described measuring pump and the described online PH checkout gear, be provided with adder-subtractor in the middle of described dimethyl ether rectifying column and the methyl alcohol vaporization tower pipeline.
Wherein, described methyl alcohol vaporization tower is made by stainless steel.
Wherein, described adder-subtractor adopts NaOH as neutralizer.
Wherein, in the described adder-subtractor agitating device is installed.
Wherein, described methyl alcohol vaporization tower reactor also comprises: the Dehydration of methanol device, described Dehydration of methanol device is connected with methyl alcohol vaporization tower.
Wherein, described methyl alcohol vaporization tower reactor also comprises: the methyl alcohol storage tank, described methyl alcohol storage tank is connected with methyl alcohol vaporization tower.
(3) beneficial effect
The utility model is by the cooperation of online PH checkout gear, measuring pump and adder-subtractor, and the still liquid that has guaranteed the methyl alcohol that comes out from the dimethyl ether rectifying column and water is alkalescent when entering methyl alcohol vaporization tower.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Fig. 1 is the structural representation of a kind of embodiment of the utility model, comprise: methyl alcohol vaporization tower 5, measuring pump 7, dimethyl ether destilling tower 2, described methyl alcohol vaporization tower 5, measuring pump 7, dimethyl ether destilling tower 2 pipeline successively connects, described methyl alcohol vaporization tower adorns 5 online PH checkout gear 4, be provided with Programmable Logic Controller 9 between described measuring pump 7 and the described online PH checkout gear 4, described dimethyl ether rectifying column 2 and the methyl alcohol vaporization tower pipeline 5 middle adder-subtractors 3 that are provided with, contain acidic materials in the dimethyl ether production wastewater and detect its PH at 4.5-6, methyl alcohol vaporization tower middle and lower part there is obvious corrosiveness, the online PH checkout gear 4 of the present invention, the cooperation of measuring pump 7 and adder-subtractor 3, the still liquid that has guaranteed the methyl alcohol that comes out from dimethyl ether rectifying column 2 and water are alkalescent when entering methyl alcohol vaporization tower 5.
In order to strengthen described methyl alcohol vaporization tower 5 anti-corrosion capabilities, preferably, described methyl alcohol vaporization tower 5 is made by stainless steel.
Preferably, described adder-subtractor 3 adopts NaOH as neutralizer.
For the flaky sodium hydrate in the adder-subtractor 3 is dissolved rapidly, preferably, agitating device 8 is installed in the described adder-subtractor.
Described methyl alcohol vaporization tower reactor also comprises: be used for the Dehydration of methanol device 6 of Methanol Recovery, described Dehydration of methanol device 6 is connected with methyl alcohol vaporization tower 5.
Described methyl alcohol vaporization tower reactor also comprises: store the methyl alcohol storage tank 1 of methanol feedstock, described methyl alcohol storage tank 1 is connected with methyl alcohol vaporization tower 5.
Material benzenemethanol from methyl alcohol storage tank 1 enters methyl alcohol vaporization tower 5, and also enter methyl alcohol vaporization tower 5 from the still liquid (key component is methyl alcohol, water) that dimethyl ether rectifying column 2 tower reactors overflow, methyl alcohol vaporization tower 5 adopts the stronger stainless steel material of anti-corrosion capability, the galvanic cell reaction easily takes place in original carbon steel tower reactor in acid solution, iron in the carbon steel loses electronics as the galvanic cell negative pole and becomes ion and enter still liquid, corrosion is accelerated in the galvanic cell reaction, and the liberation of hydrogen corrosion can reduce and accelerated corrosion speed with pH value.And at dimethyl ether rectifying column 2 and the middle adder-subtractor 3 that is equipped with of methyl alcohol vaporization tower 5 pipelines, this device adopts NaOH NAOH as neutralizer, and agitating device is installed in the adder-subtracter 3, and flaky sodium hydrate is dissolved rapidly.By the online PH checkout gear 4 monitoring methyl alcohol vaporization towers 5 tower reactor solution pH values that are installed in methyl alcohol vaporization tower 5 tower reactors.Online PH checkout gear 4 carries analog signal to Programmable Logic Controller 9, Programmable Logic Controller 9 is controlled the measuring pump 7 on adder-subtractor 3 pipelines again, maintenance alkalescent when entering methyl alcohol vaporization tower 5 with the still liquid of the methyl alcohol that guarantees to come out from dimethyl ether rectifying column 2 and water, pH value is between 7.5-8.5, to prevent the serious corrosion of methanol vapor tower 5 tower reactors.
Above embodiment only is used for explanation the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (6)
1. anti-corrosion methyl alcohol vaporization tower reactor, it is characterized in that, described methyl alcohol vaporization tower reactor comprises: methyl alcohol vaporization tower, measuring pump, dimethyl ether destilling tower, described methyl alcohol vaporization tower, measuring pump, dimethyl ether destilling tower pipeline successively connect, described methyl alcohol vaporization tower is equipped with online PH checkout gear, be provided with Programmable Logic Controller between described measuring pump and the described online PH checkout gear, be provided with adder-subtractor in the middle of described dimethyl ether rectifying column and the methyl alcohol vaporization tower pipeline.
2. methyl alcohol vaporization tower reactor as claimed in claim 1 is characterized in that, described methyl alcohol vaporization tower is made by stainless steel.
3. methyl alcohol vaporization tower reactor as claimed in claim 1 or 2 is characterized in that described adder-subtractor adopts NaOH as neutralizer.
4. methyl alcohol vaporization tower reactor as claimed in claim 3 is characterized in that, in the described adder-subtractor agitating device is installed.
5. methyl alcohol vaporization tower reactor as claimed in claim 1 is characterized in that, described methyl alcohol vaporization tower reactor also comprises: the Dehydration of methanol device, described Dehydration of methanol device is connected with methyl alcohol vaporization tower.
6. methyl alcohol vaporization tower reactor as claimed in claim 1 is characterized in that, described methyl alcohol vaporization tower reactor also comprises: the methyl alcohol storage tank, described methyl alcohol storage tank is connected with methyl alcohol vaporization tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142173 CN203108246U (en) | 2013-03-26 | 2013-03-26 | Methanol vaporization tower kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142173 CN203108246U (en) | 2013-03-26 | 2013-03-26 | Methanol vaporization tower kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203108246U true CN203108246U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320142173 Expired - Fee Related CN203108246U (en) | 2013-03-26 | 2013-03-26 | Methanol vaporization tower kettle |
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| CN (1) | CN203108246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505898A (en) * | 2013-03-26 | 2014-01-15 | 新能(张家港)能源有限公司 | Corrosion-resistant methanol vaporizer kettle |
-
2013
- 2013-03-26 CN CN 201320142173 patent/CN203108246U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505898A (en) * | 2013-03-26 | 2014-01-15 | 新能(张家港)能源有限公司 | Corrosion-resistant methanol vaporizer kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhihua Inventor after: Sun Chuang Inventor after: Tang Zheng Inventor before: Liu Wenxiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU WENXIANG TO: WANG ZHIHUA SUN CHUANG TANG ZHENG |
|
| 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: 20130807 Termination date: 20160326 |