CN114396812A - Sulfuric acid process primary conversion heating medium type high-temperature flue gas waste heat recovery system - Google Patents
Sulfuric acid process primary conversion heating medium type high-temperature flue gas waste heat recovery system Download PDFInfo
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- CN114396812A CN114396812A CN202210074038.8A CN202210074038A CN114396812A CN 114396812 A CN114396812 A CN 114396812A CN 202210074038 A CN202210074038 A CN 202210074038A CN 114396812 A CN114396812 A CN 114396812A
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- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/08—Fluid driving means, e.g. pumps, fans
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a one-stage heat medium conversion type high-temperature flue gas waste heat recovery system in a sulfuric acid process, which comprises an air heat exchange box, a filter and a recovery box, wherein a second connecting pipe is fixedly arranged on one side of the filter, the air heat exchange box is fixedly arranged at the top of the second connecting pipe, a fan is fixedly arranged on the other side of the air heat exchange box, fan blades are movably arranged in the air heat exchange box, the recovery box is arranged on one side of a first connecting pipe through a fixing pipe, a heat exchange pipe is fixedly arranged in the recovery box, an exhaust pipe is arranged on one side of the fixing pipe on one side of the recovery box, and a temperature detector is fixedly arranged at the top of the exhaust pipe. The invention can filter the impurities carried in the flue gas when in use by installing the filter, and the treated flue gas utilizes the air heat exchange box and the recovery box to carry out secondary recycling on the heat energy carried in the flue gas in a grading way, thereby reducing the energy waste and saving the energy.
Description
Technical Field
The invention relates to the technical field of sulfuric acid processes, in particular to a primary conversion heating medium type high-temperature flue gas waste heat recovery system for a sulfuric acid process.
Background
The sulfuric acid is the most active binary inorganic strong acid, can react with most metals, has strong water absorption property, can be used as a dehydrating agent, and can be used for carbonizing carbohydrate-containing substances such as wood, paper, cotton-linen fabric, biological skin and meat, and the like, and can also emit a large amount of heat energy when being mixed with water, and has strong corrosivity and oxidability, so the sulfuric acid is an important industrial raw material, can be used for manufacturing fertilizers, medicines, explosives, pigments, detergents, storage batteries and the like, and is widely applied to industries of purifying petroleum, metal smelting, dyes and the like.
Therefore, a primary conversion heat medium type high-temperature flue gas waste heat recovery system of a sulfuric acid process is needed to be designed to solve the problems.
Disclosure of Invention
The invention aims to provide a primary conversion heat medium type high-temperature flue gas waste heat recovery system for a sulfuric acid process, which aims to solve the problems that in the existing sulfuric acid production process provided by the background art, the temperature of flue gas generated in sulfuric acid production is high, and a cooling tower is directly used for cooling in the traditional flue gas cooling process, so that a large amount of water resources are wasted.
In order to achieve the purpose, the invention provides the following technical scheme: a sulfuric acid process first-stage conversion heating medium type high-temperature flue gas waste heat recovery device, which comprises an air heat exchange box, a filter and a recovery box, an air inlet pipe is fixedly arranged at one side of the filter, a protective door is arranged on the surface of the filter, a second connecting pipe is fixedly arranged at one side of the filter, an air heat exchange box is fixedly arranged at the top of the second connecting pipe, the other side of the air heat exchange box is fixedly provided with a fan, the inside of the air heat exchange box is movably provided with fan blades, an air outlet pipe is arranged on one side of the air heat exchange box, a first connecting pipe is fixedly arranged on one side of the top of the air heat exchange box, a recovery tank is arranged on one side of the first connecting pipe through a fixed pipe, a heat exchange pipe is fixedly arranged in the recovery tank, an exhaust pipe is installed on one side of the fixed pipe on one side of the recovery box, and a temperature detector is fixedly installed at the top of the exhaust pipe.
Preferably, a connecting table is fixedly installed on one side of the air heat exchange box on the periphery of the air outlet pipe, and a connecting bolt is installed between the inside of the connecting table and the air heat exchange box in a threaded mode.
Preferably, six filter cores are embedded in the protective door, and a handle is arranged on the surface of each filter core.
Preferably, the other side of the bottom of the heat exchange tube penetrates through the recovery box and is provided with a water inlet tube, and the other side of the bottom of the heat exchange tube penetrates through the recovery box and is fixedly provided with a drain tube.
Preferably, the surface of the recycling bin is provided with a mark, and a waterproof film is attached to the surface of the mark.
Preferably, the surface of the air heat exchange box is provided with an access door, and a mounting bolt is arranged between the access door and the air heat exchange box.
Preferably, a fixing table is arranged between the fixing pipe and the recycling box, and a fixing bolt is arranged between the fixing table and the recycling box.
A sulfuric acid process first-stage conversion heat medium type high-temperature flue gas waste heat recovery system comprises the following use steps:
the method comprises the following steps: before use, a user detects each device used by the device according to the use condition, in the sulfuric acid production process, the temperature of flue gas for sulfuric acid production after electric precipitation treatment is higher than 200 ℃, the high-temperature flue gas enters a purification working section for purification, an air inlet pipe is connected with a purified pipeline, the connected high-temperature flue gas enters the interior of a filter, and six filter cores arranged in a protective door are used for filtering the gas entering the interior of the filter;
step two: the filtered high-temperature flue gas is guided into the air heat exchange box by the second connecting pipe, air around the device is guided into the air heat exchange box after the fan is electrified, the fan blades are driven to rotate in the air heat exchange box by the hot flue gas guided in from the second connecting pipe and the air guided in by the fan, the heat exchange effect of the air and the flue gas can be improved by the fan blades in the rotating process, hot gas in the air heat exchange box is shunted and guided out by the air outlet pipe, and drying work can be carried out by the hot gas after the hot gas is guided out;
step three: the flue gas temperature behind the air heat exchange case can reduce to about 200 ℃, utilize not reposition of redundant personnel gas to utilize first connecting pipe and fixed pipe to be connected, utilize first connecting pipe to be connected the inside of the leading-in collection box of the inside steam of air heat exchange case after the connection, leading-in back utilizes the heat that contains in the flue gas to carry out the heat treatment to the inside water of heat exchange pipe, utilize inlet tube and drain pipe can realize changing the inside water after the heating of heat exchange pipe, flue gas after the heat exchange treatment is discharged from the inside of blast pipe, thereby realize waste heat recovery, utilize thermodetector can detect the temperature of the inside exhaust flue gas of blast pipe, the more convenient for user of service judges the temperature of flue gas.
Compared with the prior art, the invention has the beneficial effects that:
1. this one section conversion heat medium formula high temperature flue gas waste heat recovery system of sulphuric acid technology has the intake pipe through one side fixed mounting at the filter, be connected the intake pipe with the pipeline after the purification, high temperature flue gas gets into the inside of filter after connecting, six filter elements that utilize guard gate internally mounted carry out filtration treatment to the gas that gets into the filter inside, it depends on in the structure of installing inside air heat transfer case and collection box to avoid the inside back that dust impurity that dopes in the flue gas gets into air heat transfer case and collection box, and reduce the heat transfer effect of air heat transfer case and collection box, thereby improve the performance of device, utilize the handle to make things convenient for the user to use and change the filter element, improve the practicality of device.
2. This one section conversion heat medium formula high temperature flue gas waste heat recovery system of sulphuric acid technology has the air heat transfer case through the top fixed mounting at the second connecting pipe, the opposite side fixed mounting of air heat transfer case has the fan, the leading-in hot flue gas of second connecting pipe and the leading-in air of fan drive the flabellum and rotate in the inside of air heat transfer case when using, the flabellum can improve the heat transfer effect of air and flue gas at the pivoted in-process, utilize out the tuber pipe to shunt the inside steam of air heat transfer case and derive, the usable steam of back of deriving carries out drying work.
3. The sulfuric acid process one-section heat medium conversion type high-temperature flue gas waste heat recovery system is characterized in that a recovery box is installed on one side of a first connecting pipe through a fixed pipe, a heat exchange pipe is fixedly installed inside the recovery box, non-shunted gas is connected with the fixed pipe through the first connecting pipe, hot gas inside an air heat exchange box is guided into the recovery box through the first connecting pipe after connection, water inside the heat exchange pipe is heated by heat contained in flue gas after the hot gas is guided, cold water outside can be guided into the heat exchange pipe after the water inlet pipe is connected with an external structure, the water heated inside the heat exchange pipe is guided out through a drain pipe, the flue gas after heat exchange treatment is discharged from the inside of a vent pipe, waste heat recovery is realized, the temperature of the flue gas discharged from the inside of the vent pipe can be detected through a temperature detector, and the detected data are transmitted to a remote control room, thereby being more convenient for the user to judge the temperature of the flue gas.
Drawings
Fig. 1 is a perspective view of a header body of the present invention;
fig. 2 is a front view of the header body of the present invention;
fig. 3 is a schematic structural view of an air exchange box of the header body of the invention;
fig. 4 is a partial structure diagram of a recovery box of the header body of the present invention;
fig. 5 is a side view of a header body of the present invention;
fig. 6 is a flow diagram of a header body of the present invention.
In the figure: 1. a first connecting pipe; 2. an air heat exchange box; 201. an air outlet pipe; 202. an access door; 203. installing a bolt; 204. a connecting table; 205. a connecting bolt; 206. a fan blade; 3. a fan; 4. a second connecting pipe; 5. a filter; 501. a protective door; 502. a filter element; 503. a handle; 6. an air inlet pipe; 7. a temperature detector; 8. an exhaust pipe; 9. a recycling bin; 901. identifying; 902. a fixed table; 903. a fixed tube; 904. a fixing bolt; 10. a drain pipe; 11. a water inlet pipe; 12. a heat exchange tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an embodiment of the present invention is shown:
a sulfuric acid process one-section conversion heat medium type high-temperature flue gas waste heat recovery device comprises an air heat exchange box 2, a filter 5 and a recovery box 9, wherein an air inlet pipe 6 is fixedly arranged on one side of the filter 5, the air inlet pipe 6 is more convenient for a user to connect the device with an external structure, a protective door 501 is arranged on the surface of the filter 5, the protective door 501 can be used for the user to detect and maintain the structure arranged inside the filter 5 when in use, a second connecting pipe 4 is fixedly arranged on one side of the filter 5, the filter 5 is connected with the air heat exchange box 2 through the second connecting pipe 4 to realize gas transmission, the air heat exchange box 2 is fixedly arranged on the top of the second connecting pipe 4, a fan 3 is fixedly arranged on the other side of the air heat exchange box 2, and fan blades 206 are movably arranged inside the air heat exchange box 2, an air outlet pipe 201 is installed on one side of the air heat exchange box 2, a filter screen is installed inside the fan 3, impurities in air entering the fan 3 are filtered and nursed by the filter screen, hot flue gas guided by a second connecting pipe 4 and air guided by the fan 3 drive a fan blade 206 to rotate inside the air heat exchange box 2 when the fan blade 206 is used, the heat exchange effect of the air and the flue gas can be improved in the rotating process, after the air outlet pipe 201 is connected with an external guide pipe, hot air inside the air heat exchange box 2 is shunted and guided out by the air outlet pipe 201, drying work can be carried out by the hot air after the hot air is guided out, a first connecting pipe 1 is fixedly installed on one side of the top of the air heat exchange box 2, a recovery box 9 is installed on one side of the first connecting pipe 1 through a fixing pipe 903, a heat exchange pipe 12 is fixedly installed inside the recovery box 9, and after the first connecting pipe 1 is connected with the fixing pipe 903, first connecting pipe 1 is with the inside of the leading-in collection box 9 of the inside steam of air heat transfer case 2, leading-in back utilizes the heat that contains in the flue gas to carry out heat treatment to the inside water of heat transfer pipe 12, thereby realize carrying out secondary recycle to the waste heat, install blast pipe 8 through fixed pipe 903 one side in collection box 9 one side, the top fixed mounting of blast pipe 8 has thermodetector 7, utilize blast pipe 8 to discharge from the inside of collection box 9 the flue gas after heat transfer treatment when using, thermodetector 7 circular telegram back, utilize thermodetector 7 to detect the temperature of the inside exhaust flue gas of blast pipe 8, and with data transmission to the remote control room that detects, thereby the person of use of being more convenient for judges the temperature of flue gas, can realize transmitting the gas after the cooling after utilizing blast pipe 8 and external pipeline to be connected.
A connecting table 204 is fixedly installed on one side of the air heat exchange box 2 at the periphery of the air outlet pipe 201, a connecting bolt 205 is installed between the inside of the connecting table 204 and the air heat exchange box 2 through threads, the contact area between the air outlet pipe 201 and the air heat exchange box 2 can be enlarged by using the connecting table 204 when the air heat exchange box is used, the connecting table 204 and a support of the air heat exchange box 2 are connected through the connecting bolt 205, and the stability of the air outlet pipe 201 is improved after the air heat exchange box is connected.
Six filter cores 502 are installed to protective door 501's inside embedded, and the surface mounting of every filter core 502 has handle 503, utilize filter core 502 can filter the inside flue gas of entering filter 5 when using, it depends on structurally at the inside installation of air heat transfer case 2 and collection box 9 to avoid in the flue gas adulterated dust impurity to get into the inside back of air heat transfer case 2 and collection box 9, and reduce the heat transfer effect of air heat transfer case 2 and collection box 9, thereby improve the performance of device, utilize handle 503 to make things convenient for the user to use and change filter core 502 more, improve the practicality of device.
The opposite side of heat exchange tube 12 bottom runs through collection box 9 and installs inlet tube 11, and the opposite side of heat exchange tube 12 bottom runs through collection box 9 fixed mounting and has drain pipe 10, utilizes inlet tube 11 and outside structural connection back can realize leading-in heat exchange tube 12's inside with outside cold water, utilizes the water after drain pipe 10 with heat exchange tube 12 internal heating to derive, thereby improve device's practicality.
The surface of collection box 9 is provided with sign 901, and the surface of sign 901 is attached to have waterproof film, utilizes sign 901 can more make things convenient for the user to use the performance of collection box 9 when using, improves the practicality of device.
The surface mounting of air heat exchange case 2 has access door 202, and installs the installation between access door 202 and the air heat exchange case 2 and tie 203, utilizes access door 202 can more make things convenient for the user of service to detect and maintain the inside structure of installing of air heat exchange case 2 when using, utilizes the installation to tie 203 can increase the stability between access door 202 and the air heat exchange case 2 when using, avoids access door 202 the not hard up condition to appear when using.
Install fixed station 902 between fixed pipe 903 and collection box 9, and install the gim peg 904 between fixed station 902 and the collection box 9, utilize fixed station 902 can enlarge the area of contact between fixed pipe 903 and the collection box 9 when using, utilize gim peg 904 to be connected between fixed station 902 and the collection box 9, improve the stability of fixed pipe 903 after the connection.
A sulfuric acid process first-stage conversion heat medium type high-temperature flue gas waste heat recovery system comprises the following use steps:
the method comprises the following steps: before using, a user detects each device used by the device according to the using condition, in the sulfuric acid production process, the temperature of flue gas for sulfuric acid production after electric precipitation treatment reaches more than 200 ℃, the high-temperature flue gas enters a purification working section for purification, an air inlet pipe 6 is connected with a purified pipeline, the connected high-temperature flue gas enters the inside of a filter 5, six filter elements 502 arranged inside a protective door 501 are used for filtering the gas entering the inside of the filter 5, dust impurities doped in the flue gas are prevented from entering the inside of an air heat exchange box 2 and a recovery box 9 and then attaching to structures arranged inside the air heat exchange box 2 and the recovery box 9, the heat exchange effect of the air heat exchange box 2 and the recovery box 9 is reduced, the using performance of the device is improved, and the user can use and replace the filter elements 502 more conveniently by using a handle 503, the practicability of the device is improved, and the protective door 501 is utilized to facilitate the detection and maintenance of the structure installed inside the filter 5 by a user when in use;
step two: after the second connecting pipe 4 is used for connecting the filter 5 and the air heat exchange box 2, high-temperature flue gas filtered by the filter box 5 is guided into the air heat exchange box 2 by the second connecting pipe 4, air around the device is guided into the air heat exchange box 2 after the fan 3 is powered on, the fan blade 206 is driven to rotate inside the air heat exchange box 2 by the hot flue gas guided from the second connecting pipe 4 and the air guided by the fan 3, the heat exchange effect of the air and the flue gas can be improved in the rotating process of the fan blade 206, hot gas inside the air heat exchange box 2 is shunted and guided out by the air outlet pipe 201, and the hot gas can be used for drying after being guided out;
step three: the temperature of the flue gas passing through the air heat exchange box 2 can be reduced to about 200 ℃, the non-shunted gas is connected with the fixed pipe 903 by the first connecting pipe 1, the hot gas in the air heat exchange box 2 is guided into the recycling box 9 by the first connecting pipe 1 after the connection, the water in the heat exchange pipe 12 is heated by the heat contained in the flue gas after the introduction, the external cold water can be guided into the heat exchange pipe 12 after the water inlet pipe 11 is connected with an external structure, the heated water in the heat exchange pipe 12 is guided out by the drain pipe 10, thereby improving the practicability of the device, the flue gas after the heat exchange treatment is discharged from the inside of the exhaust pipe 8, thereby realizing the waste heat recovery, the temperature of the flue gas discharged from the inside of the exhaust pipe 8 can be detected by the temperature detector 7, the detected data is transmitted to a remote control room, and the temperature of the flue gas can be judged by a user more conveniently, the cooled gas can be transmitted after the exhaust pipe 8 is connected with an external pipeline.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a one section conversion heat medium formula high temperature flue gas waste heat recovery device of sulphuric acid technology, includes air heat transfer case (2), filter (5) and collection box (9), its characterized in that: the air inlet pipe (6) is fixedly installed on one side of the filter (5), the protective door (501) is installed on the surface of the filter (5), the second connecting pipe (4) is fixedly installed on one side of the filter (5), the air heat exchange box (2) is fixedly installed on the top of the second connecting pipe (4), the fan (3) is fixedly installed on the other side of the air heat exchange box (2), the fan blades (206) are movably installed inside the air heat exchange box (2), the air outlet pipe (201) is installed on one side of the air heat exchange box (2), the first connecting pipe (1) is fixedly installed on one side of the top of the air heat exchange box (2), the recovery box (9) is installed on one side of the first connecting pipe (1) through the fixed pipe (903), the heat exchange pipe (12) is fixedly installed inside the recovery box (9), and the exhaust pipe (8) is installed on one side of the fixed pipe (903) on one side of the recovery box (9), and a temperature detector (7) is fixedly mounted at the top of the exhaust pipe (8).
2. The primary conversion heat medium type high-temperature flue gas waste heat recovery device of the sulfuric acid process as claimed in claim 1, characterized in that: a connecting table (204) is fixedly installed on one side of the air heat exchange box (2) on the periphery of the air outlet pipe (201), and a connecting bolt (205) is installed between the inside of the connecting table (204) and the air heat exchange box (2) in a threaded mode.
3. The primary conversion heat medium type high-temperature flue gas waste heat recovery device of the sulfuric acid process as claimed in claim 1, characterized in that: six filter cores (502) are embedded in the protective door (501), and a handle (503) is arranged on the surface of each filter core (502).
4. The primary conversion heat medium type high-temperature flue gas waste heat recovery device of the sulfuric acid process as claimed in claim 1, characterized in that: the water inlet pipe (11) is installed in the opposite side of heat exchange tube (12) bottom through collection box (9), the opposite side of heat exchange tube (12) bottom is run through collection box (9) fixed mounting and is had drain pipe (10).
5. The primary conversion heat medium type high-temperature flue gas waste heat recovery device of the sulfuric acid process as claimed in claim 1, characterized in that: the surface of the recycling box (9) is provided with a mark (901), and a waterproof film is attached to the surface of the mark (901).
6. The primary conversion heat medium type high-temperature flue gas waste heat recovery device of the sulfuric acid process as claimed in claim 1, characterized in that: the surface mounting of air heat exchange case (2) has access door (202), and installs between access door (202) and air heat exchange case (2) and tie (203).
7. The primary conversion heat medium type high-temperature flue gas waste heat recovery device of the sulfuric acid process as claimed in claim 1, characterized in that: a fixing table (902) is arranged between the fixing pipe (903) and the recycling box (9), and a fixing bolt (904) is arranged between the fixing table (902) and the recycling box (9).
8. A sulfuric acid process one-stage conversion heat medium type high-temperature flue gas waste heat recovery system is characterized in that: the use steps are as follows:
the method comprises the following steps: before use, a user detects each device used by the device according to the use condition, in the sulfuric acid production process, the temperature of flue gas for sulfuric acid production after electric precipitation treatment reaches more than 200 ℃, the high-temperature flue gas enters a purification working section for purification, an air inlet pipe (6) is connected with a purified pipeline, the connected high-temperature flue gas enters the inside of a filter (5), and six filter cores (502) installed inside a protective door (501) are used for filtering the gas entering the inside of the filter (5);
step two: the filtered high-temperature flue gas is guided into the air heat exchange box (2) by using the second connecting pipe (4), air around the device is guided into the air heat exchange box (2) after the fan (3) is electrified, the fan blades (206) are driven to rotate in the air heat exchange box (2) by using the hot flue gas guided in from the second connecting pipe (4) and the air guided in by the fan (3), the heat exchange effect of the air and the flue gas can be improved in the rotating process of the fan blades (206), hot gas in the air heat exchange box (2) is shunted and guided out by using the air outlet pipe (201), and the hot gas can be used for drying after being guided out;
step three: the flue gas temperature behind air heat exchange box (2) can be reduced to about 200 ℃, utilize not reposition of redundant personnel gas to utilize first connecting pipe (1) to be connected with fixed pipe (903), utilize first connecting pipe (1) to be connected the inside of leading-in collection box (9) of the inside steam of air heat exchange box (2), the leading-in heat that contains in the back utilizes the flue gas carries out the heat treatment to the inside water of heat exchange pipe (12), utilize inlet tube (11) and drain pipe (10) can realize changing the inside water after the heating of heat exchange pipe (12), flue gas after the heat exchange treatment is discharged from the inside of blast pipe (8), thereby realize waste heat recovery, utilize thermodetector (7) can detect the temperature of the inside exhaust flue gas of blast pipe (8), the more convenient for user judges the temperature of flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210074038.8A CN114396812A (en) | 2022-01-21 | 2022-01-21 | Sulfuric acid process primary conversion heating medium type high-temperature flue gas waste heat recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210074038.8A CN114396812A (en) | 2022-01-21 | 2022-01-21 | Sulfuric acid process primary conversion heating medium type high-temperature flue gas waste heat recovery system |
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| CN114396812A true CN114396812A (en) | 2022-04-26 |
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| CN202210074038.8A Pending CN114396812A (en) | 2022-01-21 | 2022-01-21 | Sulfuric acid process primary conversion heating medium type high-temperature flue gas waste heat recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116465231A (en) * | 2023-04-27 | 2023-07-21 | 宜兴市宇翔机械科技有限公司 | Industrial flue gas purification waste heat recovery system and recovery process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130124665A (en) * | 2012-05-07 | 2013-11-15 | 한국해양과학기술원 | Electrodeposition coating applied cross-counterflow heat exchanger seawater |
| KR20160004270U (en) * | 2016-10-04 | 2016-12-13 | 대성히트펌프 주식회사 | Immersed heat exchange tank and heatpump system using the immersed heat exchange tank |
| CN205979857U (en) * | 2016-08-16 | 2017-02-22 | 甘肃大唐国际连城发电有限责任公司 | Steam power plant uses waste heat recovery device |
| CN215491124U (en) * | 2021-07-01 | 2022-01-11 | 福建鼎信科技有限公司 | Waste heat recovery device of steel hot rolling heating furnace |
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| KR20130124665A (en) * | 2012-05-07 | 2013-11-15 | 한국해양과학기술원 | Electrodeposition coating applied cross-counterflow heat exchanger seawater |
| CN205979857U (en) * | 2016-08-16 | 2017-02-22 | 甘肃大唐国际连城发电有限责任公司 | Steam power plant uses waste heat recovery device |
| KR20160004270U (en) * | 2016-10-04 | 2016-12-13 | 대성히트펌프 주식회사 | Immersed heat exchange tank and heatpump system using the immersed heat exchange tank |
| CN215491124U (en) * | 2021-07-01 | 2022-01-11 | 福建鼎信科技有限公司 | Waste heat recovery device of steel hot rolling heating furnace |
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| CN116465231A (en) * | 2023-04-27 | 2023-07-21 | 宜兴市宇翔机械科技有限公司 | Industrial flue gas purification waste heat recovery system and recovery process thereof |
| CN116465231B (en) * | 2023-04-27 | 2024-01-02 | 宜兴市宇翔机械科技有限公司 | Industrial flue gas purification waste heat recovery system and recovery process thereof |
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