CN111249863A - Environment-friendly exhaust treatment device with waste heat recovery and purification function - Google Patents
Environment-friendly exhaust treatment device with waste heat recovery and purification function Download PDFInfo
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- CN111249863A CN111249863A CN202010094150.9A CN202010094150A CN111249863A CN 111249863 A CN111249863 A CN 111249863A CN 202010094150 A CN202010094150 A CN 202010094150A CN 111249863 A CN111249863 A CN 111249863A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
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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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
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Abstract
The invention belongs to the technical field of waste gas treatment, and particularly relates to an environment-friendly waste gas treatment device with waste heat recovery and purification functions. The device comprises a purification kettle and a heat exchanger; the purification kettle is provided with a purification kettle inlet, a first purification kettle outlet and a second purification kettle outlet, and the front end of the purification kettle inlet is also provided with a filtering device; a packing layer is arranged inside the purifying kettle, and a tail gas pipeline for conveying waste gas is arranged at the front end of an inlet of the purifying kettle; a first outlet of the purification kettle is connected with a first smoke tube for conveying smoke, the other end of the first smoke tube is connected with a heat exchanger tube side, and a second smoke tube for discharging cold smoke is arranged at an outlet of the heat exchanger tube side; a second outlet of the purification kettle is connected with a first water pipe for conveying water, and the first water pipe is communicated with a shell pass of the heat exchanger; and the shell pass outlet of the heat exchanger is connected with the spray pipe through a second water pipe. The device simple structure, heat transfer coefficient is high, carries out environmental protection to containing polluting the gaseous processing, and desulfurization denitrogenation, dust removal effect are good.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment, and particularly relates to an environment-friendly waste gas treatment device with waste heat recovery and purification functions.
Background
The waste gas is toxic and harmful gas discharged by human in the production and living processes, particularly the generation of living waste gas caused by chemical plants, steel plants and human life, and the discharged waste gas has large smell and seriously pollutes the environment and influences the human health. Most of the waste gas comes from the waste gas discharged by fuel combustion, and the waste gas contains sulfur dioxide, nitrogen oxides, hydrocarbons and the like, and the pollutants seriously affect the air quality. The device obviously does not meet the requirements of key energy emission reduction, and the conventional waste gas treatment device has low heat recovery or environmental protection treatment effect, low heat exchange coefficient, insufficient tail heat absorption and low pollutant treatment efficiency, and cannot meet the requirements of energy conservation, emission reduction, environmental protection and economy.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the defects, the invention provides the environment-friendly waste gas treatment device with the functions of waste heat recovery and purification, which has the advantages of simple structure, high heat exchange coefficient, environment-friendly treatment of pollutant-containing gas and good effects of desulfurization, denitrification and dust removal.
The technical scheme adopted by the invention for solving the technical problems is as follows: an environment-friendly waste gas treatment device with waste heat recovery and purification functions comprises a purification kettle and a heat exchanger; the purifying kettle is provided with a purifying kettle inlet, a purifying kettle first outlet and a purifying kettle second outlet, and a packing layer is arranged inside the purifying kettle; the packing layer is provided with an adsorption layer, a first bushing plate, a cavity layer and a resin layer from top to bottom, the first bushing plate is a sieve plate with through holes, and a cavity, namely the cavity layer, is formed between the adsorption layer loaded by the first bushing plate and the resin layer arranged in the purification kettle; the purifying kettle is externally connected with a power supply, an electrode bar is arranged in the packing layer, the positive electrode of the power supply is electrically connected with the electrode bar, and the negative electrode of the power supply is electrically connected with the inner wall of the purifying kettle; the outer kettle wall of the purification kettle is made of an insulating material; a tail gas pipeline for conveying waste gas is arranged at the front end of the inlet of the purification kettle; the first outlet of the purification kettle is connected with a first smoke tube for conveying smoke, the other end of the first smoke tube is connected with a heat exchanger tube side, and a second smoke tube for discharging cold smoke is arranged at the outlet of the heat exchanger tube side; a second outlet of the purification kettle is connected with a first water pipe for conveying water, and the first water pipe is communicated with a shell pass of the heat exchanger; a water tank is also arranged between the second outlet of the purification kettle and the heat exchanger, a flocculating agent is arranged in the water tank, and a static mixer is arranged at the front end of the inlet of the water tank; the inner surface of the tube pass of the heat exchanger is provided with a heating surface which is of a threaded structure; the shell pass outlet of the heat exchanger is connected with a spray pipe through a second water pipe, and the spray direction of the spray pipe is upward and downward to form a circulating pipeline; and a heat insulation layer is arranged on the inner side wall of the shell side of the heat exchanger.
A spray pipe in the purification kettle is adopted to adsorb and settle sulfur dioxide, nitrogen oxide and hydrocarbon in the waste gas, and the absorption and adsorption are carried out on a packing layer to realize the functions of desulfurization and denitrification, so that the tail gas removal efficiency is high; hot flue gas is conveyed into a ventilator through a first flue pipe, the flue gas exchanges heat with water in a heat exchanger, and the cold flue gas is discharged out of the system; hot water returns to the spraying pipe through the second water pipe to spray the flue gas, so that the waste heat of the waste gas is recycled; most of impurities in the waste gas after environment-friendly treatment are in the packing layer, a small amount of impurities flow out along with water flow, the impurities can be removed by a flocculating agent arranged in the water tank, so that the problem that the removal efficiency of the waste gas is influenced by overhigh impurity concentration when the waste gas is heated by a heat exchanger and enters a spray pipe again is solved, and the continuous treatment and waste heat recovery of the waste gas can be realized by the arrangement; an external power supply and an electrode bar are adopted to form a magnetic field in the space of the purification kettle, the activity of sulfur dioxide, nitrogen oxide and hydrocarbon in waste gas in the system is increased by the application of the magnetic field, the electrostatic dust removal and impurity removal are realized, and the flue gas treatment efficiency is improved; the fluoroplastic pipe heat exchanger has the advantages of corrosion resistance, anti-bonding performance, vibration self-cleaning performance, high heat exchange coefficient and good heat transfer effect, and the corrugated fins are adopted, so that the heat exchange performance of the heat exchanger is further improved; and hot water is adopted to spray and absorb the tail gas, so that the temperature during the desulfurization and denitrification reaction is increased, and the impurity removal efficiency of the tail gas is further improved.
Furthermore, a filtering device is arranged at the front end of the inlet of the purification kettle. A large amount of solid particles exist in the waste gas, and the contact area of sulfur dioxide, oxynitride and the filler is obstructed when the filler layer reacts; the front end of the purification kettle is provided with the filtering device, so that solid particles can be effectively removed, and the influence of the solid particles on spraying is eliminated.
Furthermore, the heat exchanger is a fluoroplastic pipe heat exchanger, and fins inside the heat exchanger are corrugated.
Furthermore, a plurality of uniformly distributed spray headers are arranged on the spray pipes, and the spray headers are respectively opened upwards and downwards. The upward spray header can adsorb and settle particles in the waste gas in advance according to the sputtering principle, so that the possibility of insufficient treatment due to light weight is reduced; the uniformly distributed spray headers can improve the coverage area of water spraying and improve the tail gas removal efficiency.
Furthermore, the spray header is composed of two water outlets with an included angle of 30-150 degrees, the water outlets form an included angle of 30-150 degrees, the space above the spray pipe can be effectively utilized, a double spray effect is formed, and the tail gas removal efficiency is further improved.
Further, the adsorption layer is wet limestone or activated carbon. The wet limestone or active carbon has high absorption efficiency on sulfur dioxide and nitrogen oxide, and the filler has wide source and low cost, thereby further reducing the treatment cost.
The invention has the beneficial effects that:
1. by adopting the scheme, the spray pipe in the purification kettle is adopted to adsorb and settle sulfur dioxide, nitrogen oxide and hydrocarbon in the waste gas, and the absorption and adsorption are carried out on the packing layer to realize the functions of desulfurization and denitrification, so that the tail gas removal efficiency is high; hot flue gas is conveyed into a ventilator through a first flue pipe, the flue gas exchanges heat with water in a heat exchanger, and the cold flue gas is discharged out of the system; the hot water returns to the spray pipe through the second water pipe, sprays the flue gas to realize the recycle of waste gas waste heat.
2. An external power supply and an electrode bar are adopted to form a magnetic field in the space of the purification kettle, the activity of sulfur dioxide, nitrogen oxide and hydrocarbon in waste gas in the system is increased by the application of the magnetic field, the electrostatic dust removal and impurity removal are realized, and the flue gas treatment efficiency is improved; the fluoroplastic pipe heat exchanger has corrosion resistance, anti-adhesion performance, vibration self-cleaning performance, high heat exchange coefficient and good heat transfer effect, and corrugated fins are adopted to further improve the heat exchange performance of the heat exchanger.
3. The hot water is adopted for spraying and absorbing the tail gas, so that the temperature during the desulfurization and denitrification reaction is increased, and the impurity removal efficiency of the tail gas is further improved; a large amount of solid particles exist in the waste gas, and the contact area of sulfur dioxide, oxynitride and the filler is obstructed when the filler layer reacts; the front end of the purification kettle is provided with the filtering device, so that solid particles can be effectively removed, and the influence of the solid particles on spraying is eliminated.
4. The upward spray header can be used for adsorbing and settling particles in the waste gas in advance according to a sputtering principle, so that the possibility of insufficient treatment due to light weight is reduced, and the absorption efficiency of the waste gas in the system is improved; the uniformly distributed spray headers can improve the coverage area of sprayed water, the water outlet forms an included angle of 30-150 degrees, the upper space of the spray pipe can be effectively utilized, a dual spray effect is formed, and the tail gas removal efficiency is improved.
5. The wet limestone or the active carbon adopted has high absorption efficiency on sulfur dioxide and nitric oxide, and the filler has wide sources and low cost, thereby further reducing the treatment cost; the vast majority of impurity is in the packing layer in the waste gas after environmental protection handles, and a small amount of impurity flows along with the rivers, and the flocculating agent that sets up in the water tank can be with the desorption of impurity to because of the too high desorption efficiency that influences waste gas of impurity concentration when reentry shower after the heat exchanger heating, this setting can realize the serialization of waste gas and waste heat recovery.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic view of the inventive structure;
FIG. 2 is a schematic view of the structure of the filler layer according to the present invention;
FIG. 3 is a partial broken view of the heat exchanger of the present invention;
wherein: the device comprises a tail gas pipeline 1, a filtering device 2, a purifying kettle 3, a purifying kettle inlet 31, a purifying kettle first outlet 32, a purifying kettle second outlet 33, an electrode rod 34, a power supply 35, a spray pipe 4, a spray head 41, a packing layer 5, an adsorption layer 51, a leakage plate 52, a cavity layer 53, a resin layer 54, a water tank 6, a first water pipe 7, a first smoke pipe 8, a heat exchanger 9, a heating surface 91, a heat insulation layer 92, a second water pipe 10, a second smoke pipe 11, a slag discharge valve 12 and a static mixer 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Referring to fig. 1, an environment-friendly exhaust gas treatment device with waste heat recovery and purification functions comprises a purification kettle 3 and a heat exchanger 9; the front end of the inlet of the purification kettle 3 is also provided with a filtering device 2, the purification kettle 3 is provided with a purification kettle inlet 31, a first outlet 32 of the purification kettle and a second outlet 33 of the purification kettle, and a packing layer 5 is arranged inside the purification kettle 3; the filler layer 5 is provided with an adsorption layer 51, a drain plate 52, a cavity layer 53 and a resin layer 54 from top to bottom; the first leakage plate 52 is a sieve plate with through holes, and a cavity, namely a cavity layer 53, is formed between the adsorption layer 51 loaded by the first leakage plate 52 and the resin layer 54 arranged in the purification kettle 3; the adsorption layer 51 is wet limestone, and the resin layer 54 is cationic polyacrylic resin; the purification kettle 3 is externally connected with a power supply 35, an electrode bar 34 is arranged in the packing layer 5, the positive electrode of the power supply is electrically connected with the electrode bar 34, and the negative electrode of the power supply 35 is electrically connected with the inner wall of the purification kettle 3; the outer kettle wall of the purification kettle 3 is made of ceramic materials; a tail gas pipeline 1 for conveying waste gas is arranged at the front end of the inlet 31 of the purification kettle; the first outlet 32 of the purification kettle is connected with a first smoke pipe 8 for conveying smoke, the other end of the first smoke pipe 8 is connected with a heat exchanger 9 tube side, and a second smoke pipe 11 for discharging cold smoke is arranged at the outlet of the heat exchanger 9 tube side;
a heating surface 91 is arranged on the inner surface of the tube side of the heat exchanger 9, and the heating surface 91 is of a threaded structure; the shell pass outlet of the heat exchanger 9 is connected with the spray pipe 4 through a second water pipe 10, and the spray direction of the spray pipe 4 is upward and downward to form a circulating pipeline; the heat exchanger 9 is a fluoroplastic pipe heat exchanger, and fins inside the heat exchanger 9 are corrugated; an insulating layer 92 is arranged on the inner side wall of the shell side of the heat exchanger 9; the second outlet 33 of the purification kettle is connected with a first water pipe 7 for conveying water, and the first water pipe 7 is communicated with the shell side of a heat exchanger 9; the shell pass outlet of the heat exchanger 9 is connected with a spray pipe 4 through a second water pipe 10, a plurality of spray heads 41 which are uniformly distributed are arranged on the spray pipe 4, the spray heads 41 are respectively opened upwards and downwards to enable waste gas in the system to be absorbed and treated as far as possible, and the spray heads 41 are composed of two water outlets with an included angle of 60 degrees; still be provided with water tank 6 between purification cauldron second export 33 and heat exchanger 9, be provided with the polyacrylamide layer in the water tank 6, 6 import front ends of water tank are provided with static mixer 13, 6 outsides in the water tank are provided with the slag-off valve 12 that is used for regularly discharging the flocculate.
The working principle of the waste gas treatment and waste heat recovery device is as follows:
the waste gas enters the purification kettle 3, and SO in the waste gas is firstly removed by hot water sprayed out from a spray head 41 on a spray pipe 42、NOXDissolving and absorbing into acid solution, reacting the obtained acid-containing liquid gas with wet limestone, and filtering solid scum possibly remained in the system through a leakage plate 52; further purification by resin layer 54 after transition through cavitation layer 53; the treated pure gas containing the waste heat enters a heat exchanger 9, the heat exchanger 9 is a fluoroplastic pipe, the heat exchange coefficient of the material is high, and the heat exchanger fins are corrugated, so that the heat exchange efficiency is further improved; heat exchange between hot gas and cold waterThe hot water that produces after the trade circulates and gets into shower 4, further absorbs waste gas with hot water, and reaction temperature improves, has improved the acid liquor at the reaction rate of wet limestone, and work efficiency improves, can circulate and persist the processing waste gas.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides an environment-friendly exhaust treatment device with waste heat recovery and purification performance which characterized in that: comprises a purification kettle (3) and a heat exchanger (9); a purification kettle inlet (31), a first purification kettle outlet (32) and a second purification kettle outlet (33) are arranged on the purification kettle (3), and a packing layer (5) is arranged inside the purification kettle (3); the filler layer (5) is provided with an adsorption layer (51), a first drain plate (52), a cavity layer (53) and a resin layer (54) from top to bottom; the first leakage plate (52) is a sieve plate with through holes, and a cavity, namely a cavity layer (53), is formed between an adsorption layer (51) loaded by the first leakage plate (52) and a resin layer (54) arranged in the purification kettle (3); the purification kettle (3) is externally connected with a power supply (35), an electrode bar (34) is arranged in the packing layer (5), the positive electrode of the power supply is electrically connected with the electrode bar (34), and the negative electrode of the power supply (35) is electrically connected with the inner wall of the purification kettle (3); the outer kettle wall of the purification kettle (3) is made of an insulating material; a tail gas pipeline (1) for conveying waste gas is arranged at the front end of the inlet (31) of the purification kettle; the first outlet (32) of the purification kettle is connected with a first smoke pipe (8) for conveying smoke, the other end of the first smoke pipe (8) is connected with a pipe pass of a heat exchanger (9), and a second smoke pipe (11) for discharging cold smoke is arranged at the pipe pass outlet of the heat exchanger (9); a second outlet (33) of the purification kettle is connected with a first water pipe (7) for conveying water, and the first water pipe (7) is communicated with the shell side of the heat exchanger (9); a water tank (6) is also arranged between the second outlet (33) of the purification kettle and the heat exchanger (9), and a flocculating agent is arranged in the water tank (6); a static mixer (13) is arranged at the front end of the inlet of the water tank (6); a heating surface (91) is arranged on the inner surface of the tube side of the heat exchanger (9), and the heating surface (91) is of a threaded structure; the shell pass outlet of the heat exchanger (9) is connected with the spray pipe (4) through a second water pipe (10), and the spray direction of the spray pipe (4) is upward and downward to form a circulating pipeline; and a heat insulation layer (92) is arranged on the inner side wall of the shell side of the heat exchanger (9).
2. The environment-friendly exhaust gas treatment device with waste heat recovery and purification functions as claimed in claim 1, wherein: the front end of the inlet of the purification kettle (3) is also provided with a filtering device (2).
3. The environment-friendly exhaust gas treatment device with waste heat recovery and purification functions as claimed in claim 1, wherein: the heat exchanger (9) is a fluoroplastic pipe heat exchanger, and fins inside the heat exchanger (9) are corrugated.
4. The environment-friendly exhaust gas treatment device with waste heat recovery and purification functions as claimed in claim 1, wherein: a plurality of uniformly distributed spray headers (41) are arranged on the spray pipe (4), and the spray headers (41) are respectively opened upwards and downwards.
5. The environment-friendly exhaust gas treatment device with waste heat recovery and purification functions as claimed in claim 4, wherein: the spray header (41) consists of two water outlets with an included angle of 30-150 degrees.
6. The environment-friendly exhaust gas treatment device with waste heat recovery and purification functions as claimed in claim 1, wherein: the adsorption layer (51) is wet limestone or activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010094150.9A CN111249863A (en) | 2020-02-15 | 2020-02-15 | Environment-friendly exhaust treatment device with waste heat recovery and purification function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010094150.9A CN111249863A (en) | 2020-02-15 | 2020-02-15 | Environment-friendly exhaust treatment device with waste heat recovery and purification function |
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| CN111249863A true CN111249863A (en) | 2020-06-09 |
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| CN202010094150.9A Pending CN111249863A (en) | 2020-02-15 | 2020-02-15 | Environment-friendly exhaust treatment device with waste heat recovery and purification function |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171332A (en) * | 1993-09-09 | 1995-07-11 | Dae-Sung Lee | Shower tunnel type exhaust gas purification device having waste water regeneratong ability |
| CN103900403A (en) * | 2014-04-18 | 2014-07-02 | 吉首大学 | Waste gas processing and heat efficient recycling device |
| CN104014236A (en) * | 2014-06-19 | 2014-09-03 | 南京凯盛开能环保能源有限公司 | Smoke purifying and residual heat deep recycling integrated device |
-
2020
- 2020-02-15 CN CN202010094150.9A patent/CN111249863A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171332A (en) * | 1993-09-09 | 1995-07-11 | Dae-Sung Lee | Shower tunnel type exhaust gas purification device having waste water regeneratong ability |
| CN103900403A (en) * | 2014-04-18 | 2014-07-02 | 吉首大学 | Waste gas processing and heat efficient recycling device |
| CN104014236A (en) * | 2014-06-19 | 2014-09-03 | 南京凯盛开能环保能源有限公司 | Smoke purifying and residual heat deep recycling integrated device |
Non-Patent Citations (1)
| Title |
|---|
| 张晨雯: "《农家安全用水与用电》", 31 May 2019 * |
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