CN218846985U - Acid crude biodiesel cooling device in biodiesel production - Google Patents
Acid crude biodiesel cooling device in biodiesel production Download PDFInfo
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- CN218846985U CN218846985U CN202223063134.7U CN202223063134U CN218846985U CN 218846985 U CN218846985 U CN 218846985U CN 202223063134 U CN202223063134 U CN 202223063134U CN 218846985 U CN218846985 U CN 218846985U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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Abstract
The utility model discloses an acidic crude biodiesel cooling device in biodiesel production: the hot material enamel pipe is connected with a pump inlet teflon-lined ball valve and then is connected with one end of a pump inlet enamel tee joint, the other end of the tee joint is connected with an IHF type teflon-lined centrifugal pump inlet, and the third end of the tee joint is connected with a pressure relief enamel pipe; the pump discharging enamel pipe is connected with an outlet lining tetrafluoro ball valve of the pump and one end of a pump discharging enamel tee joint in sequence, the other end of the tee joint is connected with a feeding pipe orifice of the falling film type round block graphite heat exchanger, a discharging pipe orifice of the heat exchanger is connected with a cold material discharging enamel pipe with a lining tetrafluoro thermal resistance thermometer, and the third end of the tee joint is connected with the other end of the pressure releasing enamel pipe; the pressure relief enamel pipe is provided with a teflon-lined glass sight glass and a teflon-lined temperature alarm; the heat exchanger is internally provided with an inlet distribution disc and a plurality of heat exchange tubes, and is also provided with a cooling water inlet tube, a cooling water outlet tube and hanging racks, and the heat exchanger is vertically installed and fixed on a workshop steel frame through the four hanging racks, and the outlet tube mouth of the heat exchanger is higher than the top of the cold material storage tank. The utility model discloses the heat transfer is effectual, maintenance cost low, long service life.
Description
Technical Field
The utility model relates to the technical field of biodiesel production devices, in particular to an acidic crude biodiesel cooling device in biodiesel production.
Background
The domestic biodiesel mainly takes waste animal and vegetable oil as a raw material, the waste animal and vegetable oil, an acid catalyst and methanol are subjected to methyl esterification reaction at the temperature of about 100 ℃, fatty acid in the waste animal and vegetable oil is converted into fatty acid methyl ester, and the material generated in the process is called pre-coarse methyl ester. The pre-coarse methyl ester contains fatty acid methyl ester and glyceride, the pre-coarse methyl ester is subjected to heat exchange, cooled to about 70 ℃, precipitated to remove a small amount of glycerin and an acid catalyst, and then subjected to ester exchange reaction with methanol under the condition of an alkaline catalyst to convert the glyceride in the pre-coarse methyl ester into the fatty acid methyl ester, and a byproduct glycerin is separated to obtain the crude biodiesel. And distilling the crude biodiesel under reduced pressure to obtain a finished biodiesel.
The intermediate material pre-coarse methyl ester of the waste animal and vegetable oil after methyl esterification has the characteristics of high temperature, strong acidity, easy corrosion and the like. The material is subjected to heat exchange and cooling, the common use in the prior art is a 304 or 316 stainless steel pipeline and tube heat exchanger or spiral plate heat exchanger, the defects are that the pipeline and the heat exchanger are easy to corrode and perforate, and the pipeline and the heat exchanger need to be frequently repaired and replaced, so that the maintenance workload is large, the use cost is high, and the normal production is influenced; secondly, the problem that the glass lining disc type cooler is easy to accumulate slag and has poor heat exchange effect when used for cooling the pre-coarse methyl ester is solved.
Disclosure of Invention
The utility model aims at providing an acid crude biodiesel cooling device in biodiesel production that the heat transfer is effectual, maintenance cost is low, long service life.
In order to realize the purpose, the acid crude biodiesel cooling device in the biodiesel production of the utility model comprises a hot material enamel pipe 1, a pump inlet lining tetrafluoro ball valve 2, a pump inlet enamel tee joint 3, an IHF type lining tetrafluoro centrifugal pump 4, a pump outlet lining tetrafluoro ball valve 5, a pump outlet enamel pipe 6, a pump outlet enamel tee joint 7, a pressure relief enamel pipe 8, a lining tetrafluoro glass sight glass 9, a falling film type round block graphite heat exchanger 10, a cooling water inlet pipe 11, a cooling water outlet pipe 12, a hanging frame 13, an inlet valve 14, a lining tetrafluoro thermal resistance thermometer 15, a cold material outlet enamel pipe 16 and a lining tetrafluoro temperature alarm 17; one end of the hot material enamel pipe 1 is connected with an incoming material pipeline of a cooled hot material, and the other end of the hot material enamel pipe is connected with a pump inlet lining tetrafluoro ball valve 2; one end of the pump inlet enamel tee joint 3 is connected with a pump inlet tetrafluoro-lined ball valve 2, the other end of the pump inlet enamel tee joint is connected with an inlet of an IHF type tetrafluoro-lined centrifugal pump 4, and the third end of the pump inlet enamel tee joint is connected with one end of a pressure relief enamel pipe 8; the pump discharging enamel pipe 6 is sequentially connected with one end of a pump outlet lining tetrafluoro ball valve 5 and one end of a pump discharging enamel tee joint 7, the other end of the tee joint is connected with a feeding pipe orifice of the falling film type round block graphite heat exchanger 10, a discharging pipe orifice of the falling film type round block graphite heat exchanger 10 is connected with a cold material discharging enamel pipe 16 which is provided with a lining tetrafluoro thermal resistance thermometer 15 and leads to a cold material storage tank, and the third end of the tee joint is connected with the other end of a pressure releasing enamel pipe 8; the pressure relief enamel pipe 8 is provided with a tetrafluoro lined glass sight glass 9 and a tetrafluoro lined temperature alarm 17; the falling film type round block graphite heat exchanger 10 is internally provided with an inlet distribution disc and a plurality of heat exchange tubes, and is provided with a cooling water inlet pipe 11 with a water inlet valve 14, a cooling water outlet pipe 12 and four hanging frames 13, wherein the four hanging frames 13 are vertically installed and fixed on a workshop steel frame, and the outlet pipe orifices of the four hanging frames are higher than the top of a cold material storage tank.
The level height of the pressure relief enamel pipe 8 is 2-3 meters higher than the inlet pipe orifice of the falling film type round block graphite heat exchanger.
A valve cannot be arranged on the cooling water outlet pipe 11, and the outlet water is directly sent to a cooling tower or a water pool, so that the equipment is prevented from being damaged due to overpressure of a water path of the falling film type round block graphite heat exchanger.
The acid crude biodiesel cooling device in the biodiesel production with the structure has the following technical characteristics
Has the advantages that:
(1) The pipeline adopts enamel pipeline, the valve and the centrifugal pump adopt carbon steel lining polytetrafluoroethylene material, and the gasket adopts polytetrafluoroethylene gasket, so that the corrosion resistance is good.
(2) The falling film type round block graphite heat exchanger has good heat exchange effect, and the graphite material has temperature resistance, acid resistance and biodiesel resistance.
(3) Install falling film formula circle piece graphite heat exchanger in the eminence, make material in the equipment, cooling water pressure are lower, and graphite heat exchanger import pipeline is equipped with the pressure release pipeline simultaneously, but automatic pressure release when graphite heat exchanger blocks up avoids the too high graphite heat exchanger gasket of causing to wash away or graphite heat exchanger damages, can ensure that falling film formula circle piece graphite heat exchanger does not receive the damage.
(4) The device has the advantages of simple structure, low use and maintenance cost, good heat exchange effect and long service life.
The utility model discloses sour coarse biodiesel cooling device has solved following four problems that prior art stainless steel cooler and disk type glass-lined cooler exist in the diesel oil production: firstly, a cooling device made of stainless steel is not corrosion-resistant due to high material temperature and strong acidity; secondly, the stainless steel heat exchanger is often corroded and perforated everywhere, which seriously affects the normal production; thirdly, the disc type glass lining cooler has poor heat exchange effect, slag is easy to accumulate, and a gasket is easy to be damaged; fourthly, both stainless steel coolers and disc type glass lining coolers have the problem of large maintenance workload.
Drawings
FIG. 1 is a schematic view of the structure of the cooling device for acid crude biodiesel in the production of biodiesel according to the present invention.
Reference numerals are as follows: the system comprises a hot material enamel pipe 1, a pump inlet polytetrafluoroethylene lined ball valve 2, a pump inlet enamel tee joint 3, an IHF type polytetrafluoroethylene lined centrifugal pump 4, a pump outlet polytetrafluoroethylene lined ball valve 5, a pump outlet enamel pipe 6, a pump outlet enamel tee joint 7, a pressure relief enamel pipe 8, a polytetrafluoroethylene lined glass sight glass 9, a falling film type round block graphite heat exchanger 10, a cooling water inlet pipe 11, a cooling water outlet pipe 12, a hanging frame 13, a water inlet valve 14, a polytetrafluoroethylene lined thermal resistance thermometer 15, a cold material discharging enamel pipe 16 and a polytetrafluoroethylene lined temperature alarm 17.
Detailed Description
The following describes the cooling device for acid crude biodiesel in the production of biodiesel according to the present invention in further detail with reference to the accompanying drawings and the following detailed description.
Fig. 1 shows that the cooling device for acidic crude biodiesel in the production of biodiesel of the utility model comprises a hot material enamel pipe 1, a pump inlet lining tetrafluoro ball valve 2, a pump inlet enamel tee 3, an IHF type lining tetrafluoro centrifugal pump 4, a pump outlet lining tetrafluoro ball valve 5, a pump outlet enamel pipe 6, a pump outlet enamel tee 7, a pressure relief enamel pipe 8, a lining tetrafluoro glass sight glass 9, a falling film round block graphite heat exchanger 10, a cooling water inlet pipe 11, a cooling water outlet pipe 12, a hanging frame 13, an inlet valve 14, a lining tetrafluoro thermal resistance thermometer 15, a cold material outlet enamel pipe 16 and a lining tetrafluoro temperature alarm 17; one end of the hot material enamel pipe 1 is connected with an incoming material pipeline of a cooled hot material, and the other end of the hot material enamel pipe is connected with a pump inlet lining tetrafluoro ball valve 2; one end of the pump inlet enamel tee joint 3 is connected with a pump inlet tetrafluoro-lined ball valve 2, the other end of the pump inlet enamel tee joint is connected with an inlet of an IHF type tetrafluoro-lined centrifugal pump 4, and the third end of the pump inlet enamel tee joint is connected with one end of a pressure relief enamel pipe 8; the pump discharging enamel pipe 6 is sequentially connected with one end of a pump discharging lining tetrafluoro ball valve 5 and one end of a pump discharging enamel tee 7, the other end of the tee is connected with a feeding pipe orifice of the falling film type round block graphite heat exchanger 10, a discharging pipe orifice of the falling film type round block graphite heat exchanger 10 is connected with a cold material discharging enamel pipe 16 which is provided with a lining tetrafluoro thermal resistance thermometer 15 and leads to a cold material storage tank, and the third end of the tee is connected with the other end of a pressure relief enamel pipe 8; the pressure relief enamel pipe 8 is provided with a tetrafluoro lined glass sight glass 9 and a tetrafluoro lined temperature alarm 17; the falling film type round block graphite heat exchanger 10 is internally provided with an inlet distribution disc and a plurality of heat exchange tubes, and is provided with a cooling water inlet pipe 11 with a water inlet valve 14, a cooling water outlet pipe 12 and four hanging frames 13, the falling film type round block graphite heat exchanger is vertically installed and fixed on a workshop steel frame through the four hanging frames 13, and the outlet pipe orifice of the falling film type round block graphite heat exchanger is higher than the top of a cold material storage tank; the level height of the pressure relief enamel pipe 8 is 2-3 m higher than the feeding pipe opening of the falling film type round block graphite heat exchanger 10.
During operation, a cooling water inlet valve 14 is opened firstly, a water path of the falling film type round block graphite heat exchanger 10 is enabled to have cooling water circulation, after the cold material outlet of the graphite heat exchanger is confirmed to be opened to the cold material storage tank valve, a pump inlet lining tetrafluoro ball valve 2 is opened completely and a pump outlet lining tetrafluoro ball valve 5 is opened partially, a lining tetrafluoro centrifugal pump 4 is started, hot materials enter from the top of the falling film type round block graphite heat exchanger 10, flow to each heat exchange tube and exchange heat with cooling water uniformly after passing through an inlet distribution disc on the upper portion of the falling film type round block graphite heat exchanger 10, and the cold materials after heat exchange flow to the cold material storage tank. The opening degree of the pump outlet lining tetrafluoro ball valve 5 or the water inlet valve 14 is adjusted according to the temperature of the lining tetrafluoro thermal resistance thermometer 15 on the cold material discharging enamel pipe 16. When the cold material storage tank is full and needs to be replaced, the material valve above the empty tank is opened firstly, and then the material valve above the full tank is closed, so that the pressure of the material of the graphite heat exchanger is avoided.
If the heat exchange tube or the inlet distribution disc of the falling film type round block graphite heat exchanger 10 is blocked, the material pressure is higher, the material can flow back to the inlet of the IHF type lining tetrafluoro centrifugal pump 4 from the pressure relief enamel tube 8, the lining tetrafluoro temperature alarm 17 installed on the pressure relief enamel tube 8 can give out audible and visual alarm, meanwhile, the lining tetrafluoro glass sight glass 9 has the material flowing down, which indicates that the cold material discharge valve of the graphite heat exchanger is not opened or the falling film type round block graphite heat exchanger 10 is blocked, at the moment, the machine needs to be stopped in time and the valve on the outlet pipeline of the graphite heat exchanger is opened or the graphite heat exchanger is checked to be blocked, otherwise, the falling film type round block graphite heat exchanger 10 is easily damaged.
The caliber of the material outlet pipeline of the falling film type round block graphite heat exchanger 10 is larger than that of the material inlet pipeline, and the pipeline is vertically arranged as much as possible so as to reduce the slag accumulation in the heat exchange pipe.
Claims (2)
1. An acidic crude biodiesel cooling device in biodiesel production is characterized in that: the system comprises a hot material enamel pipe (1), a pump inlet polytetrafluoroethylene lined ball valve (2), a pump inlet enamel tee joint (3), an IHF type polytetrafluoroethylene lined centrifugal pump (4), a pump outlet polytetrafluoroethylene lined ball valve (5), a pump outlet material enamel pipe (6), a pump outlet material enamel tee joint (7), a pressure relief enamel pipe (8), a polytetrafluoroethylene lined glass sight glass (9), a falling film type round block graphite heat exchanger (10), a cooling water inlet pipe (11), a cooling water outlet pipe (12), a hanging frame (13), a water inlet valve (14), a polytetrafluoroethylene lined resistance thermometer (15), a cold material discharging enamel pipe (16) and a polytetrafluoroethylene lined temperature alarm (17); one end of the hot material enamel pipe (1) is connected with a feeding pipeline of a cooled hot material, and the other end of the hot material enamel pipe is connected with a pump inlet lining tetrafluoro ball valve (2); one end of the pump inlet enamel tee joint (3) is connected with the pump inlet tetrafluoro-lined ball valve (2), the other end of the pump inlet enamel tee joint is connected with the inlet of the IHF type tetrafluoro-lined centrifugal pump (4), and the third end of the pump inlet enamel tee joint is connected with one end of a pressure relief enamel pipe (8); the pump discharging enamel pipe (6) is sequentially connected with one end of a pump outlet lining tetrafluoro ball valve (5) and one end of a pump discharging enamel tee joint (7), the other end of the tee joint is connected with a feeding pipe orifice of the falling film type round block graphite heat exchanger (10), a discharging pipe orifice of the falling film type round block graphite heat exchanger (10) is connected with a cold material discharging enamel pipe (16) which is provided with a lining tetrafluoro thermal resistance thermometer (15) and communicated with a cold material storage tank, and the third end of the tee joint is connected with the other end of a pressure releasing enamel pipe (8); a Teflon-lined glass sight glass (9) and a Teflon-lined temperature alarm (17) are arranged on the pressure relief enamel pipe (8); an inlet distribution disc and a plurality of heat exchange tubes are arranged in the falling film type round block graphite heat exchanger (10), a cooling water inlet tube (11) with a water inlet valve (14), a cooling water outlet tube (12) and four hanging frames (13) are arranged, the falling film type round block graphite heat exchanger is vertically installed and fixed on a workshop steel frame through the four hanging frames (13), and a discharge tube opening of the falling film type round block graphite heat exchanger is higher than the top of a cold material storage tank.
2. The apparatus for cooling acidic crude biodiesel in the production of biodiesel according to claim 1, wherein: the level height of the pressure relief enamel pipe (8) is 2-3 meters higher than the inlet pipe orifice of the falling film type round block graphite heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223063134.7U CN218846985U (en) | 2022-11-18 | 2022-11-18 | Acid crude biodiesel cooling device in biodiesel production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223063134.7U CN218846985U (en) | 2022-11-18 | 2022-11-18 | Acid crude biodiesel cooling device in biodiesel production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218846985U true CN218846985U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223063134.7U Active CN218846985U (en) | 2022-11-18 | 2022-11-18 | Acid crude biodiesel cooling device in biodiesel production |
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| Country | Link |
|---|---|
| CN (1) | CN218846985U (en) |
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- 2022-11-18 CN CN202223063134.7U patent/CN218846985U/en active Active
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