CN116351340B - Heat energy recycling device of reaction kettle for ethylene glycol diethyl ether production - Google Patents
Heat energy recycling device of reaction kettle for ethylene glycol diethyl ether production Download PDFInfo
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- CN116351340B CN116351340B CN202310221967.1A CN202310221967A CN116351340B CN 116351340 B CN116351340 B CN 116351340B CN 202310221967 A CN202310221967 A CN 202310221967A CN 116351340 B CN116351340 B CN 116351340B
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- conducting medium
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- heat
- ring
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- 238000004064 recycling Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 title claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 236
- 239000000376 reactant Substances 0.000 claims abstract description 57
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000002309 gasification Methods 0.000 claims description 52
- 238000000926 separation method Methods 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims 5
- 238000010168 coupling process Methods 0.000 claims 5
- 238000005859 coupling reaction Methods 0.000 claims 5
- 238000000034 method Methods 0.000 abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910020851 La(NO3)3.6H2O Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/02—Preparation of ethers from oxiranes
- C07C41/03—Preparation of ethers from oxiranes by reaction of oxirane rings with hydroxy groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention belongs to the technical field of chemical product preparation, in particular to a heat energy recycling device of a reaction kettle for ethylene glycol monoethyl ether production, which comprises a shell, a spiral plate, a reactant inlet, a heat conducting medium outlet, a top plate, a reactant outlet and a preheating pipe, wherein the shell is provided with a heat conducting medium inlet and a heat conducting medium outlet; the high-temperature heat-conducting medium is guided into the bottom cavity of the spiral plate through the heat-conducting medium inlet by the pipeline, guided into the top cavity through the preheating pipe and then discharged back through the heat-conducting medium outlet; the ethanol is led into the shell through the reactant inlet, the ethanol solution flows along the spiral channel of the spiral plate to the middle part of the shell, the ethanol solution contacts with the outer wall of the spiral plate in the flowing process and contacts with the preheating pipe at the same time, the ethanol is heated by the flowing heat conducting medium, the ethanol solution is gasified in the middle part of the shell to generate ethanol gas, and the ethanol gas is led out through the reactant outlet and preheated, so that the energy loss in the production of ethylene glycol ethyl ether is reduced, and the preparation cost of screw holes is saved.
Description
Technical Field
The invention belongs to the technical field of chemical product preparation, and particularly relates to a heat energy recycling device of a reaction kettle for ethylene glycol monoethyl ether production.
Background
Ethylene glycol diethyl ether is an organic compound, is colorless oily liquid, can be mixed with water, and can be mixed in various organic solvents such as ethanol, diethyl ether, acetone and the like; the paint remover is mainly used as a solvent, an emulsifier, a stabilizer, a diluent, a paint remover and the like.
The existing method for preparing ethylene glycol diethyl ether comprises the following steps: dissolving Mg (NO 3) 2.6H2O and Co (NO 3) 2.6H2O into distilled water, adding La (NO 3) 3.6H2O to obtain a salt solution, mixing concentrated ammonia water in a parallel flow dropwise manner, regulating the pH value of the mixed solution to 9, reacting for 1H under Chang Disi Manpress and 40 ℃, cooling to room temperature, aging for 20H, carrying out conventional suction filtration, washing and drying, roasting for 4H at 500 ℃, obtaining a massive catalyst, and crushing to obtain the required catalyst; and (3) placing the catalyst in a reaction kettle, and introducing ethanol and ethylene oxide into the reaction kettle for gas-phase ethoxylation reaction to obtain ethylene glycol monoethyl ether.
When ethylene glycol diethyl ether is prepared, ethanol and ethylene oxide react, the ethanol and the ethylene oxide enter a reaction kettle at normal temperature to react, the temperature of the reaction kettle needs to be kept in a constant temperature range, and in order to reduce the temperature change of the reaction kettle, the ethanol needs to be preheated and gasified by a preheater, so that a large amount of heat energy waste exists in the whole preparation process, and the investment of production cost is increased.
Therefore, the invention provides a heat energy recycling device of a reaction kettle for producing ethylene glycol monoethyl ether.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a heat energy recycling device of a reaction kettle for producing ethylene glycol monoethyl ether, which comprises a shell, a spiral plate, a reactant inlet, a heat conducting medium outlet, a top plate, a reactant outlet and a preheating pipe, wherein the shell is provided with a heat conducting medium inlet and a heat conducting medium outlet; the bottom surface of the inside of the shell is fixedly connected with a spiral plate, the end part of the outer ring of the spiral plate is fixedly connected with the inner wall of the shell, the top cavity is formed in the top of the spiral plate, the bottom cavity is formed in the bottom of the spiral plate, the top cavity is communicated with the bottom cavity through a plurality of preheating pipes, the two ends of the preheating pipes are fixedly connected with the inner wall of the spiral plate, one side of the shell is fixedly connected with a reactant inlet, the inner ring of the reactant inlet is communicated with the inside of the shell, the reactant inlet is connected with an ethanol storage tank through a pipeline, the bottom part of the outer ring of the spiral plate is fixedly connected with a heat conducting medium inlet, the inner ring of the heat conducting medium inlet is communicated with the bottom cavity, the heat conducting medium inlet is communicated with the inside of a jacket of a reaction kettle through a pipeline, the outer ring of the spiral plate is fixedly connected with a heat conducting medium outlet, the inner ring of the heat conducting medium outlet is communicated with the top cavity, the heat conducting medium outlet is communicated with the outer wall of the shell through a pipeline, the heat conducting medium outlet is communicated with a medium storage device of the reaction kettle, the top of the shell is slidably mounted at the top, the bottom surface of the reactant inlet is slidably matched with the top surface of the spiral plate, and the middle part of the top plate is fixedly connected with the reactant outlet is fixedly connected with the top plate; when the device works, the heat-conducting medium in the jacket of the reaction kettle is heated in the heating mode of the reaction kettle, the heat-conducting medium with high temperature is guided into the bottom cavity of the spiral plate through the heat-conducting medium inlet by the pipeline, after the heat-conducting medium fills the bottom cavity, the heat-conducting medium is guided into the top cavity through the preheating pipe, and then is discharged back into the medium storage equipment of the reaction kettle through the heat-conducting medium outlet for heating; simultaneously, the ethanol in the ethanol storage tank is led into the shell through the reactant inlet by the pumping device, the ethanol solution flows along the spiral channel of the spiral plate to the middle part of the shell, the ethanol solution contacts with the outer wall of the spiral plate in the flowing process and simultaneously contacts with the preheating pipe, the flowing heat conducting medium is used for heating, the ethanol solution is gasified in the middle part of the shell to generate ethanol gas, and the ethanol gas is led out through the reactant outlet, so that the ethanol is preheated, the energy loss in the production of ethylene glycol diethyl ether is reduced, and the preparation cost of screw holes is saved.
Preferably, the bottom of the shell is fixedly connected with a gasification barrel, the top opening of the gasification barrel is communicated with the inner bottom surface of the shell, the inner part of the outer wall of the gasification barrel is fixedly connected with a heating coil, the middle part of the bottom surface of the gasification barrel is provided with a drainage bolt in a threaded manner, and the drainage bolt penetrates through the bottom wall of the gasification barrel; when the gasification device works, after the ethanol solution is preheated, the ethanol solution flows into the gasification barrel when flowing into the middle part of the shell, and the gasification barrel is heated by the heating coil, so that the gasification rate of the ethanol solution is improved, and the production efficiency of ethylene glycol monoethyl ether is improved.
Preferably, the middle part of the preheating pipe is a corrugated pipe, and the distance between wave crests on two sides of the corrugated pipe is smaller than the distance between adjacent plates of the spiral plate; the middle part of the preheating pipe is provided with the corrugated pipeline, so that the contact area with ethanol solution is increased, and meanwhile, the flowing distance of a heat conducting medium in the preheating pipe is increased, so that the heat exchange efficiency is improved, and the heat energy utilization rate in the production of ethylene glycol monoethyl ether is improved.
Preferably, the bottom surface inner ring of the top plate is fixedly connected with a separation cylinder, the bottom of the separation cylinder is in contact with the inner bottom surface of the shell, the outer ring of the separation cylinder is sleeved on the inner ring of the spiral plate, the inner ring of the separation cylinder is sleeved on the outer ring of the inner wall of the gasification barrel, and a plurality of through grooves are formed in the bottom of the separation cylinder in a surrounding manner; when the alcohol solution flows to the bottom of the gasification barrel during operation, the alcohol solution passes through the through groove and enters the bottom of the gasification barrel through the blocking of the separation barrel, and at the moment, the generated alcohol gas is blocked by the separation barrel, so that the alcohol gas enters the inside of the reactant outlet, the contact of the high-temperature alcohol gas and the low-temperature alcohol solution is reduced, the probability of cooling and liquefying the alcohol gas is reduced, and the alcohol gas guiding quantity is improved.
Preferably, an annular plate is fixedly connected to the middle part of the inner ring of the separation cylinder, the top of the outer wall of the annular plate is positioned at the top of the through groove, a plurality of elastic blocks are fixedly connected to the outer ring of the bottom of the annular plate, and one surface of each elastic block, which is far away from the annular plate, is in sliding fit with the inner wall of the gasification cylinder; through the annular plate that sets up, block to follow the intraductal ethanol solution of gasification of discharging into the bucket from logical inslot, simultaneously, the elasticity of the elastic block that sets up for the bottom of annular plate is crooked to the middle part, makes the ethanol solution get into the middle part of gasification bucket from the outer lane of gasification bucket, and the ethanol solution at annular plate middle part gasifies this moment, and the ethanol solution at annular plate outer lane flows to the middle part of annular plate through the bottom of annular plate, makes the ethanol gas of high temperature separate with the ethanol solution of low temperature, has reduced the probability that the ethanol gas cools down the liquefaction.
Preferably, the inner ring of the separation cylinder is provided with a plurality of backflow holes in a surrounding mode, the inner ring of the separation cylinder is fixedly connected with a collecting ring plate in a surrounding mode, the collecting ring plate is located at the bottom of the backflow holes, and the bottom of the collecting ring plate is located at the top of the annular plate; when the device works, the ethanol gas is upwards discharged through the reactant outlet, the ethanol gas contacts the inner wall of the reactant outlet, so that a small amount of ethanol gas is liquefied into ethanol solution water drops, the ethanol solution water drops are attached to the inner wall of the reactant outlet and gradually converged into larger ethanol solution water drops to slide down, the ethanol solution water drops are gathered in the collecting ring plate, and the ethanol solution drops are discharged back to the outer ring of the separation cylinder through the backflow hole, so that the temperature reduction of the middle part of the gasification cylinder caused by the direct backflow of the ethanol solution to the middle part of the gasification cylinder is reduced, and the gasification efficiency of the ethanol solution is influenced.
Preferably, the top of the inner ring of the separation cylinder is fixedly connected with a plurality of elastic guide strips in a surrounding manner, the outer ring of the top of the elastic guide strips is in sliding fit with the inner wall of the reactant outlet, and the bottom ends of the elastic guide strips are positioned at the top of the outer ring of the collecting ring plate; the elastic flow guide strips are used for guiding the liquefied ethanol solution water drops, so that the efficiency of the ethanol solution water drops flowing into the collecting ring plate is improved; meanwhile, the top of the elastic flow guide strip extrudes the inner wall of the reactant outlet, so that the firmness of the top plate and the separation barrel is improved, and the shaking probability of the separation barrel is reduced.
Preferably, the top of the shell is bolted with a compression ring, the bottom of the compression ring is provided with a ring groove, the inside of the ring groove is fixedly connected with an elastic ring, the section of the elastic ring is I-shaped, and the bottom surface of the elastic ring is in sliding fit with the outer ring of the top surface of the top plate; the top plate is pressed and fixed through the compression ring, the elastic force of the elastic ring improves the compression degree of the top plate, reduces the probability of shaking the top plate, and reduces the probability of leakage between the shell and the top plate.
Preferably, the bottom surface of the elastic ring is provided with a plurality of butterfly-shaped grooves in a surrounding manner; through the butterfly groove of seting up, when the clamping ring compresses tightly the roof for the inside gas of butterfly groove of elastic ring bottom is extruded and is discharged and form the negative pressure district, makes elastic ring and roof looks actuation, when making the staff dismantle the maintenance, when taking down the clamping ring, alright drive the roof slip and shift out, improved the convenience of staff's operation.
Preferably, the heat conducting medium inlet is connected with a heat conducting hose through a flange plate, the heat conducting hose surrounds the outer ring of the pipeline of the reactant inlet, and the other end of the heat conducting hose is communicated with medium storage equipment of the reaction kettle; the heat conducting medium after heat exchange with the ethanol solution is led out through the heat conducting hose, and the heat conducting hose is wound on the outer ring of the pipeline of the reactant inlet, so that the preheated heat conducting medium preheats the ethanol solution in the pipeline of the reactant inlet, and the utilization rate of heat energy during production of ethylene glycol diethyl ether is further improved.
The beneficial effects of the invention are as follows:
1. the invention relates to a heat energy recycling device of a reaction kettle for producing ethylene glycol monoethyl ether, which is characterized by comprising a shell, a spiral plate, a reactant inlet, a heat conducting medium outlet, a top plate, a reactant outlet and a preheating pipe; the heat conducting medium in the jacket of the reaction kettle is heated in the heating arrangement of the reaction kettle, the heat conducting medium with high temperature is guided into the bottom cavity of the spiral plate by the pipeline through the heat conducting medium inlet, after the heat conducting medium fills the bottom cavity, the heat conducting medium is guided into the top cavity through the preheating pipe, and then is discharged back into the medium storage equipment of the reaction kettle for heating through the heat conducting medium outlet; simultaneously, the ethanol in the ethanol storage tank is led into the shell through the reactant inlet by the pumping device, the ethanol solution flows along the spiral channel of the spiral plate to the middle part of the shell, the ethanol solution contacts with the outer wall of the spiral plate in the flowing process and simultaneously contacts with the preheating pipe, the flowing heat conducting medium is used for heating, the ethanol solution is gasified in the middle part of the shell to generate ethanol gas, and the ethanol gas is led out through the reactant outlet, so that the ethanol is preheated, the energy loss in the production of ethylene glycol diethyl ether is reduced, and the preparation cost of screw holes is saved.
2. The invention relates to a heat energy recycling device of a reaction kettle for producing ethylene glycol monoethyl ether, which is characterized in that a separation barrel is arranged; when the ethanol solution flows to the bottom of the gasification barrel, the ethanol solution passes through the through groove and enters the bottom of the gasification barrel through the barrier of the barrier, and at the moment, the generated ethanol gas is blocked by the barrier, so that the ethanol gas enters the inside of the reactant outlet, the contact of the high-temperature ethanol gas and the low-temperature ethanol solution is reduced, the probability of cooling and liquefying the ethanol gas is reduced, and the ethanol gas guiding quantity is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is an exploded view of a first embodiment of the present invention;
FIG. 3 is a schematic view of a spiral plate and a preheating tube according to a first embodiment of the present invention;
FIG. 4 is an internal block diagram of a septum in accordance with an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a first embodiment of the invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
FIG. 7 is an enlarged view of a portion of FIG. 5 at B;
FIG. 8 is a perspective view of a second embodiment of the present invention;
in the figure: 1. a housing; 2. a spiral plate; 3. a reactant inlet; 4. a heat transfer medium inlet; 5. a heat transfer medium outlet; 6. a top plate; 7. a reactant outlet; 8. a preheating tube; 9. a top cavity; 10. a bottom cavity; 11. a gasification barrel; 12. a heating coil; 13. a separation barrel; 14. a through groove; 15. an annular plate; 16. an elastic block; 17. a reflow hole; 18. collecting the annular plate; 19. an elastic flow guiding strip; 20. a compression ring; 21. a ring groove; 22. an elastic ring; 23. a butterfly groove; 24. and a heat conducting hose.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1, fig. 2, fig. 3, fig. 5 and fig. 6, the heat energy recycling device of the reaction kettle for producing ethylene glycol monoethyl ether according to the embodiment of the invention comprises a shell 1, a spiral plate 2, a reactant inlet 3, a heat conducting medium inlet 4, a heat conducting medium outlet 5, a top plate 6, a reactant outlet 7 and a preheating pipe 8; the bottom surface of the inside of the shell 1 is fixedly connected with a spiral plate 2, the end part of the outer ring of the spiral plate 2 is fixedly connected with the inner wall of the shell 1, a top cavity 9 is formed at the top of the spiral plate 2, a bottom cavity 10 is formed at the bottom of the spiral plate 2, the top cavity 9 and the bottom cavity 10 are fixedly connected through a plurality of preheating pipes 8, the two ends of the preheating pipes 8 are fixedly connected with the inner wall of the spiral plate 2, one side of the shell 1 is fixedly connected with a reactant inlet 3, the inner ring of the reactant inlet 3 is communicated with the inside of the shell 1, the reactant inlet 3 is connected with an ethanol storage tank through a pipeline, a heat conducting medium inlet 4 is fixedly connected at the bottom of the outer ring of the spiral plate 2, the inner ring of the heat conducting medium inlet 4 is communicated with a bottom cavity 10, the heat conducting medium inlet 4 penetrates through the outer wall of the shell 1, the top of the heat conducting medium outlet 5 is fixedly connected with a heat conducting medium outlet 5 through a pipeline, the inner ring of the heat conducting medium outlet 5 is communicated with the top cavity 9, the heat conducting medium outlet 5 penetrates through the outer wall of the shell 1, the heat conducting medium outlet 5 is fixedly connected with the top plate 6 of the top plate is fixedly connected with the top plate 7 of the top plate of the shell, and the top plate 7 is fixedly connected with the top plate 7 is slidably arranged at the top plate of the top plate 7 of the top of the shell is matched with the top plate 7; when the device works, the heat conducting medium in the jacket of the reaction kettle is heated in the heating mode of the reaction kettle, the high-temperature heat conducting medium is guided into the bottom cavity 10 of the spiral plate 2 through the heat conducting medium inlet 4 by a pipeline, after the heat conducting medium fills the bottom cavity 10, the heat conducting medium is guided into the top cavity 9 through the preheating pipe 8, and then is discharged back into the medium storage equipment of the reaction kettle through the heat conducting medium outlet 5 for heating; simultaneously, the inside ethanol of ethanol storage jar is led into the inside of casing 1 through the reactant import 3 through pumping device, and the ethanol solution flows to the middle part of casing 1 along the heliciform passageway of heliciform board 2, and the ethanol solution contacts with the outer wall of heliciform board 2 in the in-process that flows, simultaneously with preheating tube 8 contact, by the heat-conducting medium heating that flows, the ethanol solution gasifies at the middle part of casing 1 and produces ethanol gas, exports through reactant export 7, preheats the ethanol, has reduced the energy loss when ethylene glycol diethyl ether produces, practices thrift screw preparation cost.
As shown in fig. 1, 2 and 5, the bottom of the shell 1 is fixedly connected with a gasification barrel 11, the top opening of the gasification barrel 11 is communicated with the inner bottom surface of the shell 1, the inside of the outer wall of the gasification barrel 11 is fixedly connected with a heating coil 12, the middle part of the bottom surface of the gasification barrel 11 is provided with a drainage bolt in a threaded manner, and the drainage bolt penetrates through the bottom wall of the gasification barrel 11; when the gasification device works, after the ethanol solution is preheated, when the ethanol solution flows to the middle part of the shell 1, the ethanol solution flows into the gasification barrel 11, and the gasification barrel 11 is heated through the heating coil 12, so that the gasification rate of the ethanol solution is improved, and the production efficiency of ethylene glycol monoethyl ether is improved.
As shown in fig. 3 and 6, the middle part of the preheating pipe 8 is a corrugated pipe, and the distance between the wave crests on two sides of the corrugated pipe is smaller than the distance between the adjacent plates of the spiral plate 2; the middle part of the preheating pipe 8 is provided with the corrugated pipeline, so that the contact area with ethanol solution is increased, and meanwhile, the flowing distance of a heat conducting medium in the preheating pipe 8 is increased, thereby improving the heat exchange efficiency and further improving the heat energy utilization rate in the process of producing ethylene glycol monoethyl ether.
As shown in fig. 2, 4, 5 and 6, the inner ring of the bottom surface of the top plate 6 is fixedly connected with a separation cylinder 13, the bottom of the separation cylinder 13 is in contact with the inner bottom surface of the shell 1, the outer ring of the separation cylinder 13 is sleeved on the inner ring of the spiral plate 2, the inner ring of the separation cylinder 13 is sleeved on the outer ring of the inner wall of the gasification barrel 11, and a plurality of through grooves 14 are formed in the bottom of the separation cylinder 13 in a surrounding manner; when the alcohol solution flows to the bottom of the gasification barrel 11 during operation, the alcohol solution passes through the through groove 14 and enters the bottom of the gasification barrel 11 through the blocking of the separation barrel 13, and at the moment, the generated alcohol gas is blocked by the separation barrel 13, so that the alcohol gas enters the reactant outlet 7, the contact of the high-temperature alcohol gas and the low-temperature alcohol solution is reduced, the probability of cooling and liquefying the alcohol gas is reduced, and the alcohol gas guiding quantity is improved.
As shown in fig. 2, 4, 5 and 6, an annular plate 15 is fixedly connected to the middle part of the inner ring of the separation cylinder 13, the top of the outer wall of the annular plate 15 is positioned at the top of the through groove 14, a plurality of elastic blocks 16 are fixedly connected to the outer ring of the bottom of the annular plate 15, and one surface of the elastic block 16 far away from the annular plate 15 is in sliding fit with the inner wall of the gasification barrel 11; through the annular plate 15 that sets up, block to discharge into the inside ethanol solution of gasification bucket 11 from leading to inslot 14, simultaneously, the elasticity of the elastic block 16 that sets up for the bottom of annular plate 15 is crooked to the middle part, makes the ethanol solution get into the middle part of gasification bucket 11 from the outer lane of gasification bucket 11, and the ethanol solution at annular plate 15 middle part gasifies this moment, and the ethanol solution of annular plate 15 outer lane flows to the middle part of annular plate 15 through the bottom of annular plate 15, makes the ethanol gas of high temperature separate with the ethanol solution of low temperature, has reduced the probability that the ethanol gas cools down liquefaction.
As shown in fig. 4, 5 and 6, the inner ring of the separation cylinder 13 is provided with a plurality of backflow holes 17 in a surrounding manner, the inner ring of the separation cylinder 13 is fixedly connected with a collecting ring plate 18 in a surrounding manner, the collecting ring plate 18 is positioned at the bottom of the backflow holes 17, and the bottom of the collecting ring plate 18 is positioned at the top of the annular plate 15; when the alcohol gas is discharged upwards through the reactant outlet 7 during operation, the alcohol gas contacts the inner wall of the reactant outlet 7, so that a small amount of alcohol gas is liquefied into alcohol solution water drops, the alcohol solution water drops are attached to the inner wall of the reactant outlet 7 and gradually converged into larger alcohol solution water drops to slide down, the alcohol solution water drops are gathered in the gathering ring plate 18, the alcohol solution is discharged back to the outer ring of the separation cylinder 13 through the backflow hole 17, the temperature reduction of the middle part of the gasification cylinder 11 caused by the fact that the alcohol solution directly flows back to the middle part of the gasification cylinder 11 is reduced, and the gasification efficiency of the alcohol solution is affected.
As shown in fig. 2, 4, 5 and 6, the top of the inner ring of the separation cylinder 13 is fixedly connected with a plurality of elastic guide strips 19 in a surrounding manner, the top outer ring of the elastic guide strips 19 is in sliding fit with the inner wall of the reactant outlet 7, and the bottom ends of the elastic guide strips 19 are positioned at the top of the outer ring of the collecting ring plate 18; the elastic flow guiding strips 19 are used for guiding the liquefied ethanol solution water drops, so that the efficiency of the ethanol solution water drops flowing into the collecting annular plate 18 is improved; meanwhile, the top of the elastic flow guide strip 19 presses the inner wall of the reactant outlet 7, so that the firmness of the top plate 6 and the separation barrel 13 is improved, and the shaking probability of the separation barrel 13 is reduced.
As shown in fig. 5 and 7, the top of the housing 1 is bolted with a compression ring 20, the bottom of the compression ring 20 is provided with a ring groove 21, an elastic ring 22 is fixedly connected in the ring groove 21, the section of the elastic ring 22 is i-shaped, and the bottom surface of the elastic ring 22 is in sliding fit with the top surface outer ring of the top plate 6; the top plate 6 is pressed and fixed through the compression ring 20, the elastic force of the elastic ring 22 improves the compression degree of the top plate 6, reduces the probability of shaking the top plate 6, and reduces the probability of leakage between the shell 1 and the top plate 6.
As shown in fig. 7, a plurality of butterfly grooves 23 are formed around the bottom surface of the elastic ring 22; through the butterfly groove 23 of seting up, when clamping ring 20 compresses tightly roof 6 for the inside gas in butterfly groove 23 of elastic ring 22 bottom is extruded and is discharged and form the negative pressure district, makes elastic ring 22 and roof 6 looks actuation, when making the staff dismantle the maintenance, when taking down clamping ring 20, alright drive roof 6 slip and shift out, improved the convenience of staff's operation.
Example two
As shown in fig. 8, in comparative example one, another embodiment of the present invention is: the heat conducting medium inlet 4 is connected with a heat conducting hose 24 through a flange plate, the heat conducting hose 24 surrounds the outer ring of the pipeline of the reactant inlet 3, and the other end of the heat conducting hose 24 is communicated with medium storage equipment of the reaction kettle; the heat conducting medium after heat exchange with the ethanol solution is led out through the heat conducting hose 24, and the heat conducting hose 24 is wound on the outer ring of the pipeline of the reactant inlet 3, so that the preheated heat conducting medium preheats the ethanol solution in the pipeline of the reactant inlet 3, and the utilization rate of heat energy in the process of producing ethylene glycol diethyl ether is further improved.
Working principle: the heat conducting medium in the jacket of the reaction kettle is heated in the heating arrangement of the reaction kettle, the heat conducting medium with high temperature is guided into the bottom cavity 10 of the spiral plate 2 by a pipeline through the heat conducting medium inlet 4, after the heat conducting medium fills the bottom cavity 10, the heat conducting medium is guided into the top cavity 9 through the preheating pipe 8, and then is discharged back into the medium storage equipment of the reaction kettle for heating through the heat conducting medium outlet 5;
the ethanol in the ethanol storage tank is led into the shell 1 through the reactant inlet 3 by the pumping device, the ethanol solution flows to the middle part of the shell 1 along the spiral channel of the spiral plate 2, the ethanol solution contacts with the outer wall of the spiral plate 2 in the flowing process and contacts with the preheating pipe 8 at the same time, and is heated by the flowing heat conducting medium; after being preheated, the ethanol solution passes through the blocking of the separating cylinder 13 and is blocked by the annular plate 15 after passing through the through groove 14, so that the ethanol solution flows to the middle part of the annular plate 15 through the bottom of the annular plate 15, at the moment, the heating coil 12 heats the gasification barrel 11, the ethanol solution is gasified in the middle part of the gasification barrel 11 to generate ethanol gas, the ethanol gas is blocked by the separating cylinder 13 and the annular plate 15, so that the ethanol gas is led out upwards through the reactant outlet 7, the energy loss during the production of ethylene glycol diethyl ether is reduced, and the screw hole preparation cost is saved;
the ethanol gas contacts the inner wall of the reactant outlet 7, so that a small amount of ethanol gas is liquefied into ethanol solution water drops, the ethanol solution water drops are adhered to the inner wall of the reactant outlet 7, gradually gathered into larger ethanol solution water drops which slide down along the elastic flow guide strips 19, the ethanol solution water drops are gathered in the collecting ring plate 18, and the temperature reduction of the middle part of the gasification barrel 11 caused by the fact that the ethanol solution directly flows back to the middle part of the gasification barrel 11 after being discharged back to the outer ring of the separation barrel 13 through the backflow hole 17 is reduced, and the gasification efficiency of the ethanol solution is affected.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. Heat energy recycling device of reation kettle for ethylene glycol diethyl ether production, its characterized in that: comprises a shell (1), a spiral plate (2), a reactant inlet (3), a heat conducting medium inlet (4), a heat conducting medium outlet (5), a top plate (6), a reactant outlet (7) and a preheating pipe (8); the utility model discloses a heat-conducting kettle, including shell (1), spiral form board (2) are fixed on the inside bottom surface of shell (1), the inner wall rigid coupling of outer lane tip and shell (1) of spiral form board (2), the cavity has been seted up in the plate body of spiral form board (2), the cavity divide into top chamber (9) and end chamber (10), top chamber (9) have been seted up at the top of spiral form board (2), end chamber (10) have been seted up to the bottom of spiral form board (2), through a plurality of preheating tube (8) intercommunication between top chamber (9) and end chamber (10), and the both ends of preheating tube (8) and the inner wall rigid coupling of spiral form board (2), one side rigid coupling of shell (1) has reactant import (3), and the inside of the inner circle intercommunication shell (1) of reactant import (3), reactant import (3) are through the inside that the pipeline connection ethanol storage tank, the bottom rigid coupling of outer lane of spiral form board (2) has heat-conducting medium import (4), and heat-conducting medium import (4) are connected through bottom chamber (10), heat-conducting medium import (4) and heat-conducting medium import (5) are connected through the inner circle (5) of heat-conducting medium import (4) and the inner race (5), the heat conducting medium outlet (5) penetrates through the outer wall of the shell (1), the heat conducting medium outlet (5) is communicated with medium storage equipment of the reaction kettle through a pipeline, a top plate (6) is slidably arranged at the top of the shell (1), the bottom surface of the top plate (6) is slidably matched with the top surface of the spiral plate (2), the top surface of the middle part of the top plate (6) is fixedly connected with a reactant outlet (7), and the inner ring of the reactant outlet (7) is communicated with the middle part of the spiral plate (2);
the bottom of the shell (1) is fixedly connected with a gasification barrel (11), the top opening of the gasification barrel (11) is communicated with the inner bottom surface of the shell (1), the inside of the outer wall of the gasification barrel (11) is fixedly connected with a heating coil (12), a drainage bolt is arranged in the middle of the bottom surface of the gasification barrel (11) in a threaded manner, and the drainage bolt penetrates through the bottom wall of the gasification barrel (11);
the inner ring of the bottom surface of the top plate (6) is fixedly connected with a separation cylinder (13), the bottom of the separation cylinder (13) is in contact with the inner bottom surface of the shell (1), the outer ring of the separation cylinder (13) is sleeved on the inner ring of the spiral plate (2), and a plurality of through grooves (14) are formed in the bottom of the separation cylinder (13) in a surrounding mode;
an annular plate (15) is fixedly connected to the middle part of the inner ring of the separation cylinder (13), the top of the outer wall of the annular plate (15) is positioned at the top of the through groove (14), a plurality of elastic blocks (16) are fixedly connected to the outer ring of the bottom of the annular plate (15), and one surface, far away from the annular plate (15), of each elastic block (16) is in sliding fit with the inner wall of the gasification barrel (11);
the inner ring of the separation cylinder (13) is provided with a plurality of backflow holes (17) in a surrounding mode, the inner ring of the separation cylinder (13) is fixedly connected with a collecting annular plate (18) in a surrounding mode, the collecting annular plate (18) is located at the bottom of the backflow holes (17), and the bottom of the collecting annular plate (18) is located at the top of the annular plate (15);
the top of the inner ring of the separation barrel (13) is fixedly connected with a plurality of elastic guide strips (19) in a surrounding mode, the top outer ring of the elastic guide strips (19) is in sliding fit with the inner wall of the reactant outlet (7), and the bottom ends of the elastic guide strips (19) are located at the top of the outer ring of the collecting ring plate (18).
2. The heat energy recycling device of the reaction kettle for producing ethylene glycol monoethyl ether according to claim 1, wherein the heat energy recycling device is characterized in that: the middle part of the preheating pipe (8) is a corrugated pipe, and the distance between wave crests on two sides of the corrugated pipe is smaller than the distance between adjacent plates of the spiral plate (2).
3. The heat energy recycling device of the reaction kettle for producing ethylene glycol monoethyl ether according to claim 1, wherein the heat energy recycling device is characterized in that: the top bolt of casing (1) has clamping ring (20), annular groove (21) have been seted up to the bottom of clamping ring (20), the inside rigid coupling of annular groove (21) has elastic ring (22), and the cross-section of elastic ring (22) is the I-shaped, the bottom surface of elastic ring (22) and the top surface outer lane sliding fit of roof (6).
4. The heat energy recycling device of the reaction kettle for producing ethylene glycol monoethyl ether according to claim 3, wherein: the bottom surface of the elastic ring (22) is provided with a plurality of butterfly grooves (23) in a surrounding way.
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| CN202310221967.1A CN116351340B (en) | 2023-03-08 | 2023-03-08 | Heat energy recycling device of reaction kettle for ethylene glycol diethyl ether production |
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| CN114751374A (en) * | 2022-06-15 | 2022-07-15 | 河北氢联新能源科技有限公司 | Methanol steam reforming hydrogen production reactor, method and manufacturing method thereof |
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| DE10043870A1 (en) * | 2000-09-04 | 2002-04-04 | Helmut Thuemmler | Water heating boiler has a spirally wound heat exchanger with corrugated section walls through which the burner waste gases are fed to preheat the water |
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| CN116351340A (en) | 2023-06-30 |
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