CN215610590U - Organic solvent's edulcoration water trap - Google Patents
Organic solvent's edulcoration water trap Download PDFInfo
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- CN215610590U CN215610590U CN202122182328.8U CN202122182328U CN215610590U CN 215610590 U CN215610590 U CN 215610590U CN 202122182328 U CN202122182328 U CN 202122182328U CN 215610590 U CN215610590 U CN 215610590U
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Abstract
The utility model discloses an impurity and water removing device for an organic solvent, which comprises a feed pump, a reboiler, a water condenser, a product condenser, a water storage tank, a product storage tank, a defoaming tower section and a water removing membrane component, wherein the feed pump is sequentially connected with the reboiler, the defoaming tower section and the water removing membrane component through pipelines, the water removing membrane component comprises a product outlet and a water outlet, the product outlet is sequentially connected with the product condenser and the product storage tank through pipelines, and the water outlet of the water removing membrane component is sequentially connected with the water condenser and the water storage tank through pipelines. According to the utility model, impurities and moisture in the organic solvent are effectively removed in a mode of combining the defoaming tower section and the water removal membrane component, the quality of the organic solvent is improved, impurities entering the membrane device are effectively reduced, the membrane device is effectively protected, corrosion and blockage to the membrane device are reduced, the service life of the membrane device is prolonged, and the production cost is reduced.
Description
Technical Field
The utility model belongs to the field of impurity and water removal of solvents, and particularly relates to an impurity and water removal device for an organic solvent.
Background
At present, the organic solvent of a plurality of chemical reactions needs to be removed with impurities and water, and the pervaporation membrane can effectively separate the organic solvent and the water in the organic solvent by utilizing the difference of the adsorption and diffusion speeds of the organic solvent and the water through a molecular sieve permeable membrane, so that the organic solvent with extremely low water content can be obtained to meet the production requirement. The membrane equipment in the prior production can be divided into a gas-phase membrane feeding mode and a liquid-phase membrane feeding mode mainly according to the feeding mode, but the two feeding modes are that gas-phase materials directly enter a membrane device. Since most materials are not mixtures of a single organic solvent and moisture, the raw materials will contain small amounts of impurities.
The removal of impurities in the raw materials is favorable for improving the quality of the organic solvent and preventing adverse effects caused by the impurities, and on the other hand, if the vaporized raw materials carry a small amount of impurities to enter the membrane device, the vaporized raw materials can cause loss to the membrane device, so that the service life of the membrane device is shortened. Therefore, impurities contained in the organic solvent are required to be removed before the organic solvent removes water, so that the quality of the organic solvent can be effectively improved, the impurities entering the membrane device are effectively reduced, the membrane device is effectively protected, the service life of the membrane device is prolonged, and the production cost is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an impurity and water removing device for an organic solvent, aiming at the technical problems.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the device for removing impurities and water from the organic solvent comprises a feed pump, a reboiler, a water condenser, a product condenser, a water storage tank, a product storage tank, a defoaming tower section and a water removal membrane assembly, wherein the feed pump is sequentially connected with the reboiler, the defoaming tower section and the water removal membrane assembly through pipelines, the water removal membrane assembly comprises a product outlet and a water outlet, the product outlet is sequentially connected with the product condenser and the product storage tank through pipelines, and the water outlet of the water removal membrane assembly is sequentially connected with the water condenser and the water storage tank through pipelines.
Compared with the prior art, the scheme has the following beneficial effects:
according to the impurity and water removing device for the organic solvent, impurities and water in the organic solvent are effectively removed in a mode of combining the defoaming tower section and the water removing membrane component, the quality of the organic solvent is improved, impurities entering the membrane device are effectively reduced, the membrane device is effectively protected, corrosion and blockage to the membrane device are reduced, the service life of the membrane device is prolonged, and the production cost is reduced.
The technical scheme can be further improved as follows:
furthermore, a reboiler of the impurity and water removing device for the organic solvent is integrally connected with the defoaming tower section;
the further technical characteristics have the following technical effects: the reboiler and the integral connection mode of the defoaming tower section can save the arrangement space of the device and reduce the cost.
Furthermore, the defoaming tower section of the organic solvent impurity and water removing device is a two-stage defoaming tower section, namely, the defoaming tower section comprises a first-stage defoaming tower section and an independent second-stage defoaming tower section which are integrally connected with a reboiler, and the two defoaming tower sections are connected in series through a pipeline;
the further technical characteristics have the following technical effects: the two-stage defoaming tower section can effectively remove impurities in the organic solvent.
Further, the water removal membrane component consists of membrane devices which are connected in series in a multi-stage manner;
the further technical characteristics have the following technical effects: the water removal membrane component adopts a multi-stage series connection mode, so that the water content of the product can be reduced to the greatest extent.
Further, the device also comprises a preheater which is arranged between the feed pump and the reboiler, the product outlet of the water removal membrane component is connected with the tube side inlet of the preheater through a pipeline, and the tube side outlet of the preheater is connected with the product storage tank through a pipeline.
The further technical characteristics have the following technical effects: the heat that can effectual utilization product carries out the heat transfer before getting into dewatering membrane module to the raw materials, improves feed temperature, has realized preliminary condensation to the product simultaneously, and this mode very big degree has reduced the energy consumption.
Furthermore, the impurity and water removal device for the organic solvent also comprises a standby feeding pump which is connected with the original feeding pump in parallel.
Further, the feeding pump is a magnetic pump;
the further technical characteristics have the following technical effects: the magnetic pump is safe, reliable, efficient and convenient to maintain.
Further, the filling of the defoaming tower section is structured defoaming filling;
the further technical characteristics have the following technical effects: the regular defoaming filler has the advantages of large specific surface area, small pressure drop, uniform fluid distribution, high mass and heat transfer efficiency and the like, and can effectively remove impurities from the organic solvent.
Furthermore, a sampling valve is connected on a pipeline connecting the defoaming tower section and the water removal membrane component;
furthermore, a sampling valve is connected between the two-stage defoaming tower sections;
the further technical characteristics have the following technical effects: the sampling analysis of the device removes the sample effect of foam tower festival edulcoration is conveniently removed.
The utility model provides an impurity and water removing device for an organic solvent, which comprises the following steps:
the mode that removes the foam tower festival and remove water membrane module and combine together through split type defoaming tower festival, integral type defoaming tower festival, two-stage series connection defoaming tower festival is effectual got rid of impurity and moisture in the organic solvent, has improved the quality of organic solvent, effectively reduces the impurity that gets into the membrane ware simultaneously, protects the membrane ware effectively, has reduced the corruption and the jam to the membrane ware, increases the life of membrane ware, reduces manufacturing cost. The product outlet of the water removal membrane component is connected with the shell inlet of the reboiler through a pipeline, and the shell outlet of the reboiler is connected with the product condenser through a pipeline. The heat that can effectual utilization product carries out the heat transfer before getting into dewatering membrane module to the raw materials, improves feed temperature, has realized preliminary condensation to the product simultaneously, and this mode very big degree has reduced the energy consumption. The water removal membrane component adopts a multi-stage series connection mode, so that the water content of the product can be reduced to the greatest extent.
Drawings
FIG. 1 is a schematic view of an apparatus of the present invention comprising an integral demister tower section;
FIG. 2 is a schematic view of the apparatus of the present invention including an integrated demister tower section and backup pump;
FIG. 3 is a schematic diagram of a product of the present invention used in a preheater;
FIG. 4 is a schematic diagram of the apparatus of the present invention comprising a split demister tower segment.
FIG. 5 is a schematic diagram of an apparatus of the present invention comprising a two stage demister tower section.
The notation in the figure is:
1-a feed pump; 1' -a backup feed pump; 2-a reboiler; 3-a water removal membrane module; 4-product condenser; 5-a product storage tank; 6-water condenser; 7-a water storage tank; 8-a first-stage sampling port; 9-first-stage defoaming tower section; 10-second-stage defoaming tower section; 11-a secondary sampling port; 12-preheater.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following will describe an organic solvent impurity removing and water removing device in detail with reference to the accompanying drawings.
According to actual production verification, the piperylamine can cause very serious corrosion to the membrane device, the service life of the membrane device is shortened, and 95 v% ethanol solution containing 0.5 wt% of piperonal is selected as a raw material in the impurity removal and water removal device provided by the utility model to carry out an impurity removal and water removal effect verification experiment of the equipment.
The first embodiment:
the utility model provides an impurity and water removing device for an organic solvent, which comprises a feed pump 1, a reboiler 2, a water condenser 6, a product condenser 4, a water storage tank 7 and a product storage tank 5, and further comprises a defoaming tower section and a water removing membrane module 3, wherein the feed pump 1 is sequentially connected with the reboiler 2, the defoaming tower section and the water removing membrane module 3 through pipelines, the water removing membrane module 3 comprises a product outlet and a water outlet, the product outlet is sequentially connected with the product condenser 4 and the product storage tank 5 through pipelines, and the water outlet of the water removing membrane module 3 is sequentially connected with the water condenser 6 and the water storage tank 7 through pipelines.
The water removal membrane component 3 is composed of membrane devices which are connected in series in a multi-stage mode.
As shown in fig. 1, the feedstock is fed to a reboiler 2 at a constant flow rate by a feed pump 1; wherein, charge pump 1 is the magnetic drive pump, and reboiler 2 is vertical shell and tube, and the raw materials lets in tube side (shell and tube), and low pressure steam passes through the shell, realizes the raw materials vaporization through indirect heating.
The vaporized raw material is subjected to impurity removal through a primary defoaming tower section 9 which is integrally connected with the reboiler 2; the raw material steam after impurity removal enters a water removal membrane component 3 through a pipeline for water removal. Wherein, regular defoaming filler is filled in the defoaming tower section, the 8-stage horizontal membrane device is adopted as the dewatering membrane component 3, the connection mode is series connection, and the organic solvent and the moisture in the organic solvent can be effectively separated by utilizing the different adsorption and diffusion speeds of the organic solvent and the moisture through the membrane device.
The product outlet of the water removal membrane component 3 is connected with the shell inlet of the reboiler 2 through a pipeline, and the shell outlet of the reboiler 2 is connected with the product condenser 4 through a pipeline. And the product after impurity removal and water removal enters a product condenser 4 through a product outlet of the water removal membrane component 3 to be condensed and enters a product storage tank 5. The product condenser 4 is a vertical winding pipe type, and the gas-phase product exchanges heat with circulating water in the shell layer through an internal winding pipe to realize condensation of the gas-phase product; the product storage tank 5 is a horizontal double-sealing head type and temporarily stores the condensed qualified products.
The water separated by the water removal membrane component 3 enters a water condenser 6 through a water outlet of the water removal membrane component 3 for condensation and then enters a water storage tank 7. Wherein the water condenser 6 is a vertical winding pipe type, and the gas-phase moisture exchanges heat with circulating water in the shell layer through the internal winding pipe to realize condensation of the gas-phase moisture; the water storage tank 7 is a horizontal double-sealing head type and temporarily stores the condensed water.
A sampling valve 8 is arranged on a pipeline between the outlet of the defoaming tower section and the inlet of the membrane device, and sampling detection can be carried out through the sampling valve 8 to detect the composition of materials entering the water removal membrane component 3. A sample can be taken from the product tank 5 to detect the product composition.
The utility model provides a working process of an impurity and water removing device for an organic solvent, which comprises the following steps: the raw material of 95 v% ethanol aqueous solution containing 0.5% piperonylamine, this liquid phase material pass through charge pump 1 and let into reboiler 2, through getting into water membrane module 3 that connects in series behind the integral type defoaming tower section after low pressure steam indirect heating vaporization, impurity in the raw materials can obtain effectual separation through defoaming tower section 9, the raw materials that get into water membrane module 3 obtains the material that the separation satisfied the production demand and the moisture that separates because absorption and the diffusion velocity difference of organic solvent and moisture in the membrane ware. The gas phase material flows through a product outlet of the water removal membrane component 3, is temporarily stored in a product storage tank 5 after being condensed by a product condenser 4, and the gas phase water flows through a water outlet at one side of the penetrating fluid and is temporarily stored in a water storage tank after being condensed by a water condenser 6.
Second embodiment:
as shown in figure 2 of the drawings, in which,
on the basis of the first embodiment, a standby feed pump 1' connected in parallel with the original feed pump 1 is also included, and the rest is the same as the first embodiment.
The third embodiment:
as shown in FIG. 3, the device for removing impurities and water from organic solvent is provided with a preheater 12, the preheater 12 is arranged between the feed pump 1 and the reboiler 2, the product outlet of the water removal membrane module 3 is connected with the tube side inlet of the preheater 12 through a pipeline, and the tube side outlet of the preheater 12 is connected with the product storage tank 5 through a pipeline. Part of gas phase product materials in the water removal membrane component 3 pass through the tube pass of the preheater 12, raw materials to be treated pass through the shell of the preheater 12, and the temperature of the materials entering the reboiler 2 can be increased through heat exchange between the gas phase product and the raw materials to be treated, so that the condensation of part of the gas phase materials is realized, and the mode greatly reduces the energy consumption. The others are the same as the first example.
The fourth embodiment:
as shown in fig. 4, the defoaming tower section is split, that is, the reboiler 2 and the second defoaming tower section 10 are connected by a pipeline, which is beneficial to the maintenance and replacement of the reboiler 2 and the second defoaming tower section 10 respectively. The others are the same as the first example.
Fifth embodiment:
as shown in fig. 5, the defoaming tower section is a two-stage defoaming tower section, that is, the two-stage defoaming tower section comprises a first-stage defoaming tower section 9 and an independent second-stage defoaming tower section 10 which are integrally connected with the reboiler 2, the two defoaming tower sections are connected in series by a pipeline, and impurities in the organic solvent can be more effectively removed in the form of the two-stage defoaming tower section. A sampling valve 11 is arranged between the first-stage defoaming tower section 9 and the independent second-stage defoaming tower section 10. The others are the same as the first example.
The test results of the above examples are shown in the following table:
from the above experimental results, it can be seen that: under the condition of the same working condition, the three modes of the split type defoaming tower section, the integrated type defoaming tower section and the two-stage series defoaming tower section, namely the defoaming tower section and the water removal membrane component are combined, so that impurities and moisture in the raw materials can be effectively removed, and the moisture content of the obtained product is lower than that of a device without the defoaming tower section. Compared with a device only having one-stage or two-stage defoaming tower sections, the device with the two-stage defoaming tower sections has the advantages that the content of material impurities and moisture in products entering the membrane device is reduced, and the impurities and moisture in raw materials can be more effectively separated.
In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. The device for removing impurities and water from an organic solvent comprises a feed pump, a reboiler, a water condenser, a product condenser, a water storage tank and a product storage tank, and is characterized by further comprising a defoaming tower section and a water removal membrane assembly, wherein the feed pump is sequentially connected with the reboiler, the defoaming tower section and the water removal membrane assembly through pipelines, the water removal membrane assembly comprises a product outlet and a water outlet, the product outlet is sequentially connected with the product condenser and the product storage tank through pipelines, and the water outlet of the water removal membrane assembly is sequentially connected with the water condenser and the water storage tank through pipelines.
2. An apparatus for removing impurities and water from organic solvent according to claim 1, wherein the reboiler is integrally connected to the defoaming section.
3. An apparatus for removing impurities and water from organic solvent according to claim 1, wherein the demister tower sections are two-stage demister tower sections, comprising a first-stage demister tower section and a separate second-stage demister tower section integrally connected to the reboiler, and the two demister tower sections are connected in series by a pipeline.
4. An apparatus for removing impurities and water from organic solvent according to claim 1, wherein the water removal membrane module comprises a plurality of membrane units connected in series.
5. An apparatus for removing impurities and water from organic solvent according to claim 1, further comprising a preheater disposed between the feed pump and the reboiler, wherein the product outlet of the water removal membrane module is connected to the tube side inlet of the preheater via a pipeline, and the tube side outlet of the preheater is connected to the product storage tank via a pipeline.
6. An apparatus for removing impurities and water from organic solvent according to claim 1, further comprising a backup feed pump connected in parallel with said feed pump.
7. An apparatus for removing impurities and water from organic solvent according to claim 1, wherein the defoaming tower section is filled with structured defoaming filler.
8. An apparatus for removing impurities and water from organic solvent according to any one of claims 1 to 7, wherein a sampling valve is connected to a pipeline connecting the defoaming tower section and the water removal membrane module.
9. An apparatus for removing impurities and water from organic solvent according to claim 3, wherein a sampling valve is connected between the two-stage defoaming tower sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122182328.8U CN215610590U (en) | 2021-09-09 | 2021-09-09 | Organic solvent's edulcoration water trap |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122182328.8U CN215610590U (en) | 2021-09-09 | 2021-09-09 | Organic solvent's edulcoration water trap |
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| CN215610590U true CN215610590U (en) | 2022-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115400598A (en) * | 2022-09-20 | 2022-11-29 | 苏州晶洲装备科技有限公司 | Water removal device and water removal method for organic solvent |
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2021
- 2021-09-09 CN CN202122182328.8U patent/CN215610590U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115400598A (en) * | 2022-09-20 | 2022-11-29 | 苏州晶洲装备科技有限公司 | Water removal device and water removal method for organic solvent |
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