CN116086216A

CN116086216A - Comprehensive energy utilization system and method for thionyl chloride rectifying tower

Info

Publication number: CN116086216A
Application number: CN202211675972.1A
Authority: CN
Inventors: 张鑫; 张永亮; 严冬; 张孝龙; 陆双双; 俞其飞
Original assignee: Anhui Jinxuan Technology Co ltd
Current assignee: Anhui Jinxuan Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-05-09

Abstract

The invention discloses an energy comprehensive utilization system of a thionyl chloride rectifying tower, which comprises a heat exchanger, a weight removing tower, a crude product tank and a storage tank, wherein the heat exchanger, the weight removing tower, the crude product tank and the storage tank are communicated through chemical pipelines, a driving motor for rotation output is arranged on the heat exchanger, a baffle plate is arranged in the heat exchanger, an inner flow pipe for circulating sulfur chloride is arranged in the heat exchanger, and a cleaning mechanism for cleaning crystals on the surface of the inner flow pipe is arranged in the heat exchanger. The invention overcomes the defects of the prior art, has reasonable design and compact structure, optimizes the cyclic utilization of energy, reduces the production cost, greatly improves the production efficiency, realizes the optimization of the reaction efficiency and the material utilization rate in the whole production process, obviously increases the economic benefit of enterprises, and has higher social use value and application prospect.

Description

Comprehensive energy utilization system and method for thionyl chloride rectifying tower

Technical Field

The invention relates to the technical field of thionyl chloride rectification, in particular to a comprehensive energy utilization system and method for a thionyl chloride rectifying tower.

Background

The thionyl chloride is an important fine chemical raw material, in the process technology for producing the thionyl chloride, four modes are respectively a chlorosulfonic acid method, a co-production method, a sulfur trioxide method and a sulfur dioxide gas phase method, and at present, continuous rectification treatment processes are adopted for rectifying the thionyl chloride, wherein a heavy removal tower mainly separates substances such as sulfur monochloride, sulfur dichloride, thionyl chloride and the like, the tower bottom temperature is 125-135 ℃, and the substances enter a sulfur monochloride storage tank after being extracted, and are cooled by circulating water, so that energy waste is caused.

The temperature of the thionyl chloride entering the heavy-duty removal tower is about 50 ℃, and the bottom of the heavy-duty removal tower needs to be heated by a heat exchanger, so that a large amount of steam is consumed, and the input of heating energy is increased.

And after the heat exchanger is used for a long time, a certain amount of crystals and impurities are adhered to the outer wall of the heat exchange tube, and excessive accumulated impurities and crystals can influence the temperature transmission of the heat exchange tube, so that the temperature exchange efficiency between sulfur monochloride and thionyl chloride is reduced, the energy recycling of the heat exchange tube is influenced, and the arrangement of the baffle plate in the heat exchanger cannot be removed, so that the outer wall of the heat exchange tube cannot be cleaned in place in a general cleaning mode.

Accordingly, the inventor has the problem of maintaining the experience of the design development and the actual production in the related industry for many years, researching and improving the existing structure and the existing defects, and providing a comprehensive energy utilization system and method for a thionyl chloride rectifying tower, which can be used for energy exchange and recycling, and avoid the phenomenon of reducing the heat exchange effect caused by long-term use, so as to achieve the purpose of having more practical value.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a system and a method for comprehensively utilizing energy of a thionyl chloride rectifying tower.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a thionyl chloride rectifying column energy comprehensive utilization system, includes heat exchanger, takes off heavy tower, crude material jar and storage tank, heat exchanger, take off heavy tower, crude material jar and storage tank by chemical industry pipeline intercommunication, be equipped with the driving motor who is used for the rotation output on the heat exchanger, be equipped with the baffling piece in the heat exchanger, be equipped with the interior flow tube that circulates sulfur monochloride in the heat exchanger, be equipped with the clearance mechanism that is used for clearing up interior flow tube surface crystallization in the heat exchanger.

Preferably, the cleaning mechanism comprises a first scraping mechanism positioned in the middle of the inner cavity of the heat exchanger, a second scraping mechanism positioned on the upper part of the inner cavity of the heat exchanger and a third scraping mechanism positioned on the lower part of the inner cavity of the heat exchanger, wherein the first scraping mechanism is provided with a mounting frame, the cleaning mechanism is provided with a screw rod mechanism for driving the cleaning mechanism to translate, and the cleaning mechanism is provided with a guiding mechanism for guiding.

Preferably, the guiding means comprises a first guiding rod for guiding translation of the first scraping means, a second guiding rod for guiding translation of the second scraping means, and a third guiding rod for guiding translation of the third scraping means.

Preferably, the screw mechanism comprises a first screw for driving the first scraping mechanism to translate, a second screw for driving the second scraping mechanism to translate, and a third screw for driving the third scraping mechanism to translate.

Preferably, the first scraping mechanism comprises a first sliding block sleeved with a first screw rod, a connecting frame extending vertically is arranged on the first sliding block, a balance frame is arranged on the connecting frame, a first guide hole sleeved with a first guide rod is formed in the balance frame, and a mounting hole used for sleeving a mounting frame is formed in the balance frame.

Preferably, the second scraping mechanism comprises a second sliding block sleeved with a second screw rod, an upper scraping frame for scraping crystals on the surface of the inner flow pipe is arranged on the second sliding block, a second guide hole for sleeving a second guide rod is formed in the upper scraping frame, and a second scraping plate for scraping crystals on the surface of the inner flow pipe is arranged at the end part of the upper scraping frame;

the third scraping mechanism comprises a third sliding block sleeved with a third screw rod, a lower scraping frame for scraping crystals on the surface of the inner flow pipe is arranged on the third sliding block, a third guide hole for sleeved with a third guide rod is formed in the lower scraping frame, and a third scraping plate for scraping crystals on the surface of the inner flow pipe is arranged at the end part of the lower scraping frame;

the mounting orientation of the first scraping mechanism is arranged in a mirror image with the mounting orientation of the second scraping mechanism.

Preferably, a first scraping plate capable of being detached and cleaned is arranged in the mounting frame, an embedded groove for mounting the first scraping plate is formed in the mounting frame, and bristles for scraping crystals on the surface of the inner flow pipe are arranged on the first scraping plate.

Preferably, a first material passing end for guiding out a crude product is arranged on the heat exchanger, a second material passing end for feeding in the crude product is arranged on the heat exchanger, a gear set connected with an output shaft of a driving motor is arranged in the first material passing end, and a transmission mechanism connected with a screw rod mechanism is arranged in the first material passing end.

Preferably, the transmission mechanism comprises a first transmission rod connected with the first screw rod, a second transmission rod connected with the second screw rod and a third transmission rod connected with the third screw rod;

the gear set comprises a splicing box positioned in the first material passing end, an upper driven gear connected with a second transmission rod is arranged in the splicing box, a lower driven gear connected with a third transmission rod is arranged in the splicing box, driving gears respectively connected with the first transmission rod and an output shaft of a driving motor are arranged in the splicing box, and a transmission gear used for meshing the splicing driving gears, the upper driven gears and the lower driven gears is arranged in the splicing box.

The comprehensive energy utilization method of the thionyl chloride rectifying tower comprises the following steps:

s1: the high-temperature sulfur monochloride led out from the bottom of the de-heavy tower is led into a tube side in the heat exchanger through pipeline communication, and the low-temperature thionyl chloride crude product led out from the crude product tank is led into a shell side in the heat exchanger, so that the two products exchange heat;

s2: introducing a low-temperature crude thionyl chloride into a shell pass of a heat exchanger, and introducing the crude thionyl chloride subjected to heat exchange in the heat exchanger into a weight removal tower again, wherein the temperature of the crude thionyl chloride before heat exchange is 50-60 ℃, and the temperature of the crude thionyl chloride subjected to heat exchange is 80-90 ℃;

s3: introducing high-temperature sulfur monochloride into a tube side in a heat exchanger, performing heat exchange treatment in the heat exchanger, introducing the sulfur monochloride into a storage tank by a chemical pipeline for storage, wherein the temperature of the sulfur monochloride before heat exchange is 125-135 ℃, and the temperature of the sulfur monochloride after heat exchange is 80-100 ℃;

s4, measuring the temperature of the crude thionyl chloride and the sulfur monochloride before and after heat exchange by a thermometer.

Compared with the prior art, the invention has the beneficial effects that:

1. through the setting of clearance mechanism, utilize mutually supporting between driving motor, gear train, drive mechanism, lead screw mechanism and the guiding mechanism, can let clearance mechanism carry out the operation of striking off of adhering to crystal and impurity to the surface of interior flow tube, avoid interior flow tube outer wall attachment too much to cause the temperature transmission between shell side and the tube side to receive the influence.

2. Through the arrangement of the heat exchanger, the material transfer between the shell side and the tube side is utilized, and the temperature exchange is carried out according to the temperature difference between sulfur monochloride and thionyl chloride, so that the energy loss is reduced.

3. Through the operation of heat exchange treatment of the heat exchanger, the initial temperature of the thionyl chloride entering the interior of the heavy removal tower can be increased, the consumption of steam by the heavy removal tower is reduced, the temperature of sulfur monochloride after heat exchange is reduced, the interior of the storage tank does not need to be cooled by circulating water, and the potential safety hazard is solved while the consumption is reduced.

In summary, the invention overcomes the defects of the prior art, optimizes the recycling of energy, reduces the production cost, greatly improves the production efficiency, realizes the optimization of the reaction efficiency and the material utilization rate in the whole production process, obviously increases the economic benefit of enterprises, and has higher social use value and application prospect.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a schematic view of a tube side structure of a heat exchanger according to the present invention;

FIG. 3 is a schematic view of the internal structure of the heat exchanger according to the present invention;

FIG. 4 is a schematic view of a shell side structure of a heat exchanger according to the present invention;

FIG. 5 is a front elevational view of the structure of FIG. 4;

FIG. 6 is a schematic view of the structure of the baffle plate member of the present invention;

FIG. 7 is an enlarged view of a partial structure at A in FIG. 3;

FIG. 8 is a schematic view showing the structural splicing of the first scraping mechanism and the mounting frame according to the present invention;

FIG. 9 is a schematic view of a first scraping mechanism according to the present invention;

FIG. 10 is a schematic view of a structural splice of a mounting bracket and a first screed according to the present invention;

FIG. 11 is a schematic view of the structure of the mounting frame of the present invention;

FIG. 12 is a schematic view of a first screed according to the present invention;

FIG. 13 is a schematic view of a second scraping mechanism according to the present invention;

fig. 14 is a schematic structural view of a third scraping mechanism in the present invention.

In the figure: 1. a heat exchanger; 101. a first material passing end; 102. a second material passing end; 103. a driving motor; 104. a baffle plate member; 105. an inner flow tube; 2. a weight removing tower; 3. a crude product tank; 4. a storage tank; 5. a guide mechanism; 501. a first guide bar; 502. a second guide bar; 503. a third guide bar; 6. a cleaning mechanism; 61. a mounting frame; 62. an embedded groove; 63. a first scraper; 631. brushing; 601. a first scraping mechanism; 6011. a first slider; 6012. a connecting frame; 6013. a balancing stand; 6014. a first guide hole; 6015. a mounting hole; 602. a second scraping mechanism; 6021. a second slider; 6022. an upper scraping frame; 6023. a second guide hole; 6024. a second scraper; 603. a third scraping mechanism; 6031. a third slider; 6032. a lower scraping frame; 6033. a third guide hole; 6034. a third squeegee; 7. a screw rod mechanism; 701. a first screw rod; 702. a second screw rod; 703. a third screw rod; 8. a gear set; 801. a splice box; 802. a transmission gear; 803. a drive gear; 804. an upper driven gear; 805. a lower driven gear; 9. a transmission mechanism; 901. a first transmission rod; 902. a second transmission rod; 903. and a third transmission rod.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-14, a comprehensive energy utilization system of a thionyl chloride rectifying tower comprises a heat exchanger 1, a weight removing tower 2, a crude product charging tank 3 and a storage tank 4, wherein the heat exchanger 1, the weight removing tower 2, the crude product charging tank 3 and the storage tank 4 are communicated through chemical pipelines, a driving motor 103 for rotating and outputting is arranged on the heat exchanger 1, a baffle plate 104 is arranged in the heat exchanger 1, an inner flow pipe 105 for circulating sulfur chloride is arranged in the heat exchanger 1, and a cleaning mechanism 6 for cleaning surface crystals of the inner flow pipe 105 is arranged in the heat exchanger 1.

Specifically, the cleaning mechanism 6 includes the first scraping mechanism 601 that is located heat exchanger 1 inner chamber middle part, be located the second scraping mechanism 602 of heat exchanger 1 inner chamber upper portion, and the third scraping mechanism 603 of heat exchanger 1 inner chamber lower part, be equipped with mounting bracket 61 on the first scraping mechanism 601, be equipped with the lead screw mechanism 7 that is used for driving its translation on the cleaning mechanism 6, be equipped with the guiding mechanism 5 that is used for the direction on the cleaning mechanism 6, after the inside interior flow tube 105 of heat exchanger 1 long-term use, can produce the adhesion of impurity and crystal, the direct influence the temperature conversion efficiency of the sulfur monochloride of the inside circulation of interior flow tube 105 to the thionyl chloride of shell side inside circulation, and the translation of the inside subassembly of cleaning mechanism 6 about the interior flow tube 105 can carry out effectual scraping to the outer wall of interior flow tube 105, can let the crystal and the impurity that adheres to drop, avoid causing the attachment to pile up too much influence the transmission exchange of temperature.

Specifically, guiding mechanism 5 includes the first guide bar 501 that is used for first striking off mechanism 601 direction translation, be used for second striking off mechanism 602 direction translation second guide bar 502, and be used for third striking off mechanism 603 direction translation third guide bar 503, through guiding mechanism 5's setting, let first guide bar 501, second guide bar 502 and third guide bar 503 provide the balanced guide effect when reciprocal translation for first striking off mechanism 601, second striking off mechanism 602 and third striking off mechanism 603 respectively, avoid taking place the inside subassembly of clearance mechanism 6 to cause the damage to the outer wall of interior flow tube 105.

Specifically, the screw rod mechanism 7 includes a first screw rod 701 for driving the first scraping mechanism 601 to translate, a second screw rod 702 for driving the second scraping mechanism 602 to translate, and a third screw rod 703 for driving the third scraping mechanism 603 to translate, through the arrangement of the screw rod mechanism 7, the transmission effect of the gear set 8 and the transmission mechanism 9 can be utilized, the output shaft of the driving motor 103 rotates to drive the first screw rod 701, the second screw rod 702 and the third screw rod 703 to synchronously rotate, a condition for reciprocating movement in the heat exchanger 1 is provided for the cleaning mechanism 6, the first screw rod 701, the second screw rod 702 and the third screw rod 703 are all sleeved with the baffle plate 104 through bearings, no lines are arranged at the sleeved positions of the first screw rod 701, the second screw rod 702 and the third screw rod 703 and the baffle plate 104, so that the rotation of the first screw rod 701, the second screw rod 702 and the third screw rod 703 can not change the using positions of the baffle plate 104 (the baffle plate 104 is set as the prior art, and the application is not described).

Specifically, the first scraping mechanism 601 includes a first slider 6011 sleeved with the first screw rod 701, a vertically extending connecting frame 6012 is arranged on the first slider 6011, a balancing frame 6013 is arranged on the connecting frame 6012, a first guide hole 6014 sleeved with the first guide rod 501 is arranged on the balancing frame 6013, a mounting hole 6015 sleeved with the mounting frame 61 is arranged on the balancing frame 6013, and the first scraping mechanism 601 and the mounting frame 61 are spliced to perform scraping operation on surface attachments for the inner flow pipe 105 positioned in the middle of the inner cavity of the heat exchanger 1.

Specifically, the second scraping mechanism 602 includes a second sliding block 6021 sleeved with the second screw rod 702, an upper scraping frame 6022 for scraping the surface crystal of the inner flow tube 105 is arranged on the second sliding block 6021, a second guiding hole 6023 for sleeving a second guiding rod 502 is arranged on the upper scraping frame 6022, and a second scraping plate 6024 for scraping the surface crystal of the inner flow tube 105 is arranged at the end part of the upper scraping frame 6022;

the third scraping mechanism 603 comprises a third sliding block 6031 sleeved with a third screw rod 703, a lower scraping frame 6032 for scraping the surface crystals of the inner flow pipe 105 is arranged on the third sliding block 6031, a third guide hole 6033 for sleeved with a third guide rod 503 is arranged on the lower scraping frame 6032, and a third scraping plate 6034 for scraping the surface crystals of the inner flow pipe 105 is arranged at the end part of the lower scraping frame 6032;

the installation orientation of the first scraping mechanism 601 is mirror image with the installation orientation of the second scraping mechanism 602, the second scraping mechanism 602 and the third scraping mechanism 603 are mirror image, the inner flow tube 105 surface at the upper part and the lower part of the inner cavity of the heat exchanger 1 can be scraped, the second scraping mechanism 602 and the third scraping mechanism 603 can be mutually replaced, the actual scraping effect of the second scraping mechanism is not affected, and the first scraping mechanism 601 and the mounting frame 61 are matched to carry out comprehensive surface scraping treatment on the inner flow tube 105 of the whole inside of the heat exchanger 1.

Specifically, be equipped with detachable abluent first scraper blade 63 in the mounting bracket 61, be equipped with in the mounting bracket 61 and be used for installing first scraper blade 63's interior caulking groove 62, be equipped with on the first scraper blade 63 and be used for scraping interior flow tube 105 surface crystallization's brush hair 631, mounting bracket 61 is detachable, it can carry out direct concatenation with first scraping mechanism 601, let the first scraper blade 63 of installing on the mounting bracket 61 can carry out convenient dismantlement and installation, so as to accomplish the clearance operation to it, avoid impurity to pile up too much on the first scraper blade 63 and influence its scraping effect, go up and scrape frame 6022, second scraper blade 6024, scrape down frame 6032 and third scraper blade 6034 and all can adopt its design mode and install the processing.

Specifically, be equipped with the first material end 101 that is used for deriving the crude on the heat exchanger 1, be equipped with the second material end 102 that is used for letting in the crude on the heat exchanger 1, be equipped with in the first material end 101 with driving motor 103 output shaft's gear train 8, be equipped with in the first material end 101 with screw mechanism 7 connected drive mechanism 9, import the inside of interior flow tube 105 with the sulfur monochloride of high temperature through the second material end 102, store in the inside of carrying to storage tank 4 through first material end 101, when sulfur monochloride process interior flow tube 105, because can let in the thionyl chloride from crude material tank 3 in the shell side of heat exchanger 1, the contact of temperature difference has formed the temperature exchange, the thionyl chloride after the intensification is imported into the inside of heavy tower 2 through the heat exchanger 1 carries out the next processing.

Specifically, the transmission mechanism 9 includes a first transmission rod 901 connected to the first screw 701, a second transmission rod 902 connected to the second screw 702, and a third transmission rod 903 connected to the third screw 703;

the gear set 8 comprises a splicing box 801 positioned in the first material passing end 101, an upper driven gear 804 connected with a second transmission rod 902 is arranged in the splicing box 801, a lower driven gear 805 connected with a third transmission rod 903 is arranged in the splicing box 801, a driving gear 803 respectively connected with the first transmission rod 901 and an output shaft of the driving motor 103 is arranged in the splicing box 801, a transmission gear 802 used for meshing the splicing driving gear 803, the upper driven gear 804 and the lower driven gear 805 is arranged in the splicing box 801, a power transmission path is provided for the screw mechanism 7 through the arrangement of the gear set 8 and the transmission mechanism 9, the transmission of the driving motor 103 is dispersed to the driving gear 803, the upper driven gear 804 and the lower driven gear 805, and then the first screw 701, the second screw 702 and the third screw 703 can synchronously rotate through the first transmission rod 901, the second transmission rod 902 and the third transmission rod 903.

Working principle: in the invention, high-temperature sulfur chloride is guided into the inner flow tube 105 through the second material passing end 102 by the pipeline at the bottom of the weight removing tower 2 to circulate, the temperature difference between the sulfur chloride and the sulfoxide chloride is led into the shell pass in the heat exchanger 1 through the tube wall exchange of the inner flow tube 105, the temperature of the sulfur chloride is reduced, the temperature of the sulfoxide chloride is increased, through the circulation treatment, the exchanged sulfur chloride can be led into the storage tank 4 through the first material passing end 101 to be stored, the exchanged sulfur chloride can flow into the weight removing tower 2 through the pipeline to be subjected to the next treatment, when the outer wall of the inner flow tube 105 needs to be cleaned, the driving motor 103 is started, the output shaft of the driving motor 103 drives the driving gear to rotate, the upper driven gear 804 and the lower driven gear 805 can synchronously rotate through the meshed transmission of the transmission gear 802, the first transmission rod 901, the second transmission rod 902 and the third transmission rod 702 can drive the first lead screw 701, the second lead screw 702 and the third scraping mechanism 703 to scrape the impurities down, and the impurities 601 of the inner wall of the inner flow tube 105 or the outer wall of the inner flow tube is respectively scraped off by the first transmission rod 903, the second transmission rod 902 and the third transmission rod 703 is positioned at the middle part of the inner wall of the inner flow tube 105 or the inner flow tube is required to be cleaned by the inner wall of the inner flow tube 105 or the inner part of the inner flow tube is required to be cleaned by the impurities.

Example 2

s1: the high-temperature sulfur monochloride led out from the bottom of the weight removing tower 2 is led into a tube side in the heat exchanger 1 through pipeline communication, and the low-temperature thionyl chloride crude product led out from the crude product tank 3 is led into a shell side in the heat exchanger 1, so that the two are subjected to heat exchange;

s2: introducing a low-temperature crude thionyl chloride into the shell side of the heat exchanger 1, and introducing the crude thionyl chloride subjected to heat exchange in the heat exchanger 1 into the heavy-duty removal tower 2 again, wherein the temperature of the crude thionyl chloride before heat exchange is 50-60 ℃, and the temperature of the crude thionyl chloride subjected to heat exchange is 80-90 ℃;

s3: the high-temperature sulfur monochloride introduced into the tube side in the heat exchanger 1 is introduced into the storage tank 4 for storage through a chemical pipeline after heat exchange treatment in the heat exchanger 1, wherein the temperature of the sulfur monochloride before heat exchange is 125-135 ℃, and the temperature of the sulfur monochloride after heat exchange is 80-100 ℃;

s4, measuring the temperature of the crude product of the thionyl chloride and the temperature of the sulfur monochloride before and after heat exchange by a thermometer, and saving 130kg of steam per ton of thionyl chloride by calculating by a flowmeter.

Example 3

Referring to fig. 1, the difference between the present embodiment and embodiment 2 is that the temperature of the crude thionyl chloride before heat exchange is 60-70 ℃, the temperature of the crude thionyl chloride after heat exchange is 90-100 ℃, the temperature of the sulfur monochloride before heat exchange is 125-135 ℃, the temperature of the sulfur monochloride after heat exchange is 100-110 ℃, and the steam is saved by 200kg per ton of thionyl chloride calculated by a flowmeter.

Other undescribed structures refer to example 2.

Example 4

Referring to fig. 1, the difference between the present embodiment and embodiment 2 is that the temperature of the crude thionyl chloride before heat exchange is 70-80 ℃, the temperature of the crude thionyl chloride after heat exchange is 100-110 ℃, the temperature of the sulfur monochloride before heat exchange is 135-145 ℃, and the sulfur monochloride after heat exchange is 110-120 ℃, and steam is saved by 100kg per ton of thionyl chloride calculated by a flowmeter.

Other undescribed structures refer to example 2.

According to the implementation effects of the embodiments 2-4, the low-temperature crude thionyl chloride and the high-temperature sulfur monochloride exchange heat in the heat exchanger 1, and the embodiment 2 has the best effect, greatly reduces energy loss and basically achieves the maximum heat recycling effect through calculation of a steam flowmeter.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of power also belongs to common knowledge in the art, and the invention is mainly used for protecting a mechanical device, so the invention does not explain the control mode and circuit connection in detail.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides a thionyl chloride rectifying column energy comprehensive utilization system, includes heat exchanger (1), takes off heavy tower (2), crude material jar (3) and storage tank (4), its characterized in that: the novel heat exchanger comprises a heat exchanger (1), a heavy-duty removal tower (2), a crude product charging bucket (3) and a storage tank (4), wherein the heat exchanger (1) is communicated through a chemical pipeline, a driving motor (103) for rotating and outputting is arranged on the heat exchanger (1), a baffle plate (104) is arranged in the heat exchanger (1), an inner flow pipe (105) for circulating sulfur chloride is arranged in the heat exchanger (1), and a cleaning mechanism (6) for cleaning surface crystals of the inner flow pipe (105) is arranged in the heat exchanger (1).

2. The energy comprehensive utilization system of a thionyl chloride rectifying tower according to claim 1, which is characterized in that: the cleaning mechanism (6) comprises a first scraping mechanism (601) located at the middle part of the inner cavity of the heat exchanger (1), a second scraping mechanism (602) located at the upper part of the inner cavity of the heat exchanger (1) and a third scraping mechanism (603) located at the lower part of the inner cavity of the heat exchanger (1), a mounting frame (61) is arranged on the first scraping mechanism (601), a screw rod mechanism (7) for driving the cleaning mechanism (6) to translate is arranged on the cleaning mechanism (6), and a guiding mechanism (5) for guiding is arranged on the cleaning mechanism (6).

3. The energy comprehensive utilization system of the thionyl chloride rectifying tower according to claim 2, which is characterized in that: the guiding mechanism (5) comprises a first guiding rod (501) for guiding translation of the first scraping mechanism (601), a second guiding rod (502) for guiding translation of the second scraping mechanism (602), and a third guiding rod (503) for guiding translation of the third scraping mechanism (603).

4. The energy comprehensive utilization system of the thionyl chloride rectifying tower according to claim 2, which is characterized in that: the screw mechanism (7) comprises a first screw (701) for driving the first scraping mechanism (601) to translate, a second screw (702) for driving the second scraping mechanism (602) to translate, and a third screw (703) for driving the third scraping mechanism (603) to translate.

5. The energy comprehensive utilization system of the thionyl chloride rectifying tower according to claim 2, which is characterized in that: the first scraping mechanism (601) comprises a first sliding block (6011) sleeved with a first screw rod (701), a connecting frame (6012) extending vertically is arranged on the first sliding block (6011), a balancing frame (6013) is arranged on the connecting frame (6012), a first guide hole (6014) sleeved with a first guide rod (501) is formed in the balancing frame (6013), and a mounting hole (6015) used for sleeving a mounting frame (61) is formed in the balancing frame (6013).

6. The energy comprehensive utilization system of the thionyl chloride rectifying tower according to claim 2, which is characterized in that: the second scraping mechanism (602) comprises a second sliding block (6021) sleeved with a second screw rod (702), an upper scraping frame (6022) for scraping crystals on the surface of the inner flow pipe (105) is arranged on the second sliding block (6021), a second guide hole (6023) for sleeving a second guide rod (502) is formed in the upper scraping frame (6022), and a second scraping plate (6024) for scraping crystals on the surface of the inner flow pipe (105) is arranged at the end part of the upper scraping frame (6022);

the third scraping mechanism (603) comprises a third sliding block (6031) sleeved with a third screw rod (703), a lower scraping frame (6032) for scraping crystals on the surface of the inner flow pipe (105) is arranged on the third sliding block (6031), a third guide hole (6033) for sleeving a third guide rod (503) is formed in the lower scraping frame (6032), and a third scraping plate (6034) for scraping crystals on the surface of the inner flow pipe (105) is arranged at the end part of the lower scraping frame (6032);

the mounting orientation of the first scraping mechanism (601) is arranged in a mirror image with the mounting orientation of the second scraping mechanism (602).

7. The energy comprehensive utilization system of the thionyl chloride rectifying tower according to claim 2, which is characterized in that: be equipped with in mounting bracket (61) and dismantle abluent first scraper blade (63), be equipped with in mounting bracket (61) and be used for installing interior caulking groove (62) of first scraper blade (63), be equipped with on first scraper blade (63) and be used for striking off interior flow tube (105) surface crystallization's brush hair (631).

8. The energy comprehensive utilization system of a thionyl chloride rectifying tower according to claim 1, which is characterized in that: be equipped with on heat exchanger (1) and be used for deriving crude first material end (101), be equipped with on heat exchanger (1) and be used for letting in crude second material end (102), be equipped with in first material end (101) with driving motor (103) output shaft's gear train (8), be equipped with in first material end (101) with screw mechanism (7) be connected drive mechanism (9).

9. The energy comprehensive utilization system of the thionyl chloride rectifying tower according to claim 8, which is characterized in that: the transmission mechanism (9) comprises a first transmission rod (901) connected with the first screw rod (701), a second transmission rod (902) connected with the second screw rod (702), and a third transmission rod (903) connected with the third screw rod (703);

the gear set (8) comprises a splicing box (801) positioned in the first material passing end (101), an upper driven gear (804) connected with a second transmission rod (902) is arranged in the splicing box (801), a lower driven gear (805) connected with a third transmission rod (903) is arranged in the splicing box (801), a driving gear (803) respectively connected with the first transmission rod (901) and an output shaft of the driving motor (103) is arranged in the splicing box (801), and a transmission gear (802) used for meshing the splicing driving gear (803), the upper driven gear (804) and the lower driven gear (805) is arranged in the splicing box (801).

10. A method for comprehensively utilizing energy of a thionyl chloride rectifying tower, which adopts the energy comprehensive utilization system of the thionyl chloride rectifying tower as set forth in any one of claims 1 to 9, and is characterized by comprising the following steps:

s1: the high-temperature sulfur monochloride led out from the bottom of the weight removing tower (2) is led into a tube pass in the heat exchanger (1) through pipeline communication, and the low-temperature sulfoxide chloride crude product led out from the crude product tank (3) is led into a shell pass in the heat exchanger (1) to exchange heat between the two;

s2: introducing a low-temperature crude thionyl chloride product into a shell side of a heat exchanger (1), and introducing the thionyl chloride product subjected to heat exchange in the heat exchanger (1) into a weight removing tower (2) again, wherein the temperature of the crude thionyl chloride product before heat exchange is 50-60 ℃, and the temperature of the crude thionyl chloride product subjected to heat exchange is 80-90 ℃;

s3: the high-temperature sulfur monochloride introduced into the tube side in the heat exchanger (1) is introduced into the storage tank (4) for storage through a chemical pipeline after heat exchange treatment in the heat exchanger (1), the temperature of the sulfur monochloride before heat exchange is 125-135 ℃, and the temperature of the sulfur monochloride after heat exchange is 80-100 ℃;