CN111006256A - Condensing centrifugal sedimentation method for cleaning kitchen oil fume - Google Patents
Condensing centrifugal sedimentation method for cleaning kitchen oil fume Download PDFInfo
- Publication number
- CN111006256A CN111006256A CN201910592352.3A CN201910592352A CN111006256A CN 111006256 A CN111006256 A CN 111006256A CN 201910592352 A CN201910592352 A CN 201910592352A CN 111006256 A CN111006256 A CN 111006256A
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- Prior art keywords
- water
- heat exchange
- oil
- oil smoke
- exchange system
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004062 sedimentation Methods 0.000 title claims abstract description 6
- 239000003517 fume Substances 0.000 title claims description 18
- 238000004140 cleaning Methods 0.000 title description 9
- 239000000779 smoke Substances 0.000 claims abstract description 47
- 239000002245 particle Substances 0.000 claims abstract description 7
- 238000009833 condensation Methods 0.000 claims abstract description 4
- 230000005494 condensation Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 239000007789 gas Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 2
- 239000012267 brine Substances 0.000 claims 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims 1
- 239000000498 cooling water Substances 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 238000000746 purification Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004924 electrostatic deposition Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The invention belongs to the technical field of environment application and protection, and relates to a clean condensation and sedimentation method for kitchen oil smoke, which aims to separate oil smoke particles by means of cooling water condensation and air duct centrifugal sedimentation and collect the oil smoke respectively so as to discharge clean gas and protect the environment.
Description
Technical Field
The invention relates to a cleaning technology of kitchen oil smoke, in particular to pollution-free treatment of the oil smoke, and belongs to the field of oil smoke removal.
Background
With the continuous progress of urbanization, clothes and eating houses are necessary for people. Among them, diet health is one of the issues of major concern to people in recent years. A large amount of oil smoke is generated by various large catering institutions such as dining halls, hotels and large restaurants, and the purification and treatment of the oil smoke are a great environmental protection problem. In the prior art, the method adopted by equipment for purifying oil smoke in the catering industry mainly comprises a mechanical filtration method, an electrostatic deposition method, an adsorption method, a thermal oxidation incineration method, a biodegradation method and a liquid washing method.
(1) Mechanical filtration method
The method is to remove the oil smoke by using the principles of filtration, inertial collision, adsorption or other mechanical separation, thereby achieving the purpose of purifying the smoke. But the removal efficiency is low in the independent use process, and is 50% -70%, so that the cleaning is difficult.
(2) Electrostatic deposition method
The working principle of the electrostatic deposition method is that oil fume is introduced into a high-voltage electric field, and oil fume particles move to a dust collecting electrode under the action of a shop factory and are settled from oil fume. However, the viscosity of the condensate of the collected oil fume is high, which often causes difficulty in cleaning the oil fume, causes large maintenance workload and reduces the use effect.
(3) Adsorption process
The adsorption principle of the activated carbon is as follows: the oil fume is adsorbed by the active carbon with larger specific surface area in the purifier to purify the harmful gas in the oil fume. The method has the advantages of small occupied area and high purification efficiency, can effectively remove carcinogenic substances such as oil smoke, thought, CO and the like and harmful gases, thereby eliminating pollution and stink, but because the activated carbon is easy to saturate and the viscosity of particulate matters in the oil smoke is high, the pressure drop is larger, and the activated carbon is easy to pack, the operation cost is increased, and the activated carbon is generally used as the last stage in multi-stage oil smoke purification in the prior application.
(4) Thermal oxidation incineration method
The principle of the thermal oxidation incineration method is that toxic and harmful components in the oil smoke are converted into nontoxic and harmless substances by utilizing the thermally propelled oxidation reaction, so that the oil smoke purification effect is achieved. The method has the advantages of complex technology, more foreign technologies, complete combustion of substances in the oil smoke, high thermal efficiency, low emission of nitrides and high oil smoke purification efficiency. The method has higher equipment and operation and maintenance costs.
(5) Biodegradation process
The biological degradation method comprises the steps of firstly domesticating specific microorganisms capable of degrading oil smoke, then carrying out batch culture, and finally degrading and purifying the entering oil smoke waste gas in a microorganism film-hanging and packed tower. The biological method has high removal rate, but is unstable, the reaction condition is difficult to control, the removal effect is influenced by overhigh or overlow temperature, and the operation is relatively complex.
(6) Liquid washing method
The principle of the liquid washing method is that the oil fume is contacted with absorption liquid through a special gas distribution device, and particulate matters in the oil fume are removed from a gas phase to a phase support into a liquid phase. The method has low purification efficiency of submicron particles, the waste liquid of the washing liquid can not be solved well, and secondary pollution is formed if the washing liquid is directly discharged into a sewer.
Disclosure of Invention
In order to solve the above problems, the present invention provides a technology for cleaning oil smoke, which can greatly clean the oil smoke to be treated and reduce the oil smoke content in the exhaust gas.
In order to achieve the above-mentioned objects,
the technical scheme provided by the invention is as follows: a clean condensation centrifugal sedimentation method for kitchen oil smoke is characterized in that: the method comprises the following steps:
(1) refrigerating water to minus 5-10 ℃, introducing the water into a semiconductor refrigerating device, introducing the water into a water storage system, and returning the water to the semiconductor refrigerating device for repeated refrigeration to form a refrigerating cycle;
(2) kitchen oil smoke is introduced through the exhaust fan, under the centrifugal force of the twisted spiral pipe and the cooling of refrigeration water, oil smoke particles smaller than 10 microns are separated from oil drops, after the oil smoke particles pass through the oil drop collector and the smoke dust collecting net, the oil smoke is separated, filtered and removed with the efficiency reaching 99%, oil drops are recovered, and purified gas can be directly discharged into the air.
The heat exchange system in the step (2) comprises a heat exchange water outlet pipeline, a connecting bolt, an oil fume inlet channel, a heat fence, a heat exchange system water inlet pipeline, a water pump, a water storage tank, a smoke collecting net, an oil drop collecting device and an oil fume outlet heat exchange system water outlet pipeline, wherein the heat exchange water outlet pipeline is communicated with the heat fence and then communicated with the heat exchange system water inlet pipeline, the heat fence consists of a twisted spiral pipeline and is connected with the water pump, cooling saline water in the heat exchange system water inlet pipeline is introduced into the heat fence by the water pump, and then the cooling saline water is introduced into the heat fence by the water pump and then introduced into the heat exchange system water.
The twisted spiral pipe in the step (2) is formed by pressing the pipeline, applying external force and twisting the pipe by self.
(2) The equipment maintenance and cleaning are simple, and the oil drop collecting device and the smoke dust collecting net of the accessory can be directly replaced
(3) The discharged gas is pollution-free and meets the relevant national regulations on kitchen oil smoke.
Drawings
FIG. 1 is a schematic view of the principle of the oil smoke cleaning method
FIG. 2 is a schematic diagram of a twisted helical piping arrangement
FIG. 3 is a schematic view of the twisted spiral duct
FIG. 4 is a view showing the structure of a heat exchange system
FIG. 5 is a view of a twisted spiral pipe
1-heat exchange cooling system, 2-oil drop collecting device, 3-water supply system, 4-smoke collecting device, 5-semiconductor refrigerating device, 6-twisted spiral pipe, 7-air flue, 8-heat exchange water outlet pipeline, 9-connecting bolt, 10 oil smoke inlet channel, 11-heat fence, 12-heat exchange system water inlet pipeline, 13-water pump 14-water storage tank, 15-smoke collecting net, 16-oil drop collecting device, 17-oil smoke outlet and 18-twisted spiral pipe.
The specific implementation mode is as follows:
the invention is further described with reference to the accompanying drawings in which:
the invention relates to a method for cleaning kitchen oil fume, which is shown in figure 1 and comprises the specific steps that (1) water is refrigerated to minus 5-10 ℃, introduced into a semiconductor refrigeration device, introduced into a water storage system and returned into the semiconductor refrigeration device for repeated refrigeration to form a refrigeration cycle, as shown in figure 1;
(2) kitchen oil smoke is introduced through the exhaust fan, oil smoke particles smaller than 10 microns are separated from oil drops under the cooling of refrigerating water by centrifugal force formed by an air duct formed by the twisted spiral pipes and the twisted spiral pipes, the oil smoke is separated, filtered and removed with the efficiency reaching 99% after passing through an oil drop collector and a smoke dust collecting net, the oil drops are recovered, and purified gas can be directly discharged into the air.
The twisted spiral tubes are shown in FIG. 2 in a schematic layout in a heat exchange system, showing the twisted spiral tubes in a misaligned layout.
Fig. 3 shows a schematic diagram of twisted spiral duct arrangement, and a spiral duct is formed in space due to the staggered arrangement of twisted spiral ducts, so that oil smoke can be separated.
Fig. 4 shows a structure diagram of a heat exchange system, in which cooling water is pumped into a heat barrier, i.e. a spiral pipeline from right to left through a water pump, so as to form a centrifugal and condensing environment, thereby separating oil and smoke.
Claims (3)
1, (1) refrigerating water to minus 5-10 ℃, introducing the water into a semiconductor refrigerating device, introducing the water into a water storage system, and returning the water to the semiconductor refrigerating device for repeated refrigeration to form a refrigerating cycle;
(2) kitchen oil smoke is introduced through the exhaust fan, oil smoke particles smaller than 10 microns are separated from oil drops under the cooling of refrigerating water by centrifugal force formed by an air duct formed by the twisted spiral pipes and the twisted spiral pipes, the oil smoke is separated, filtered and removed with the efficiency reaching 99% after passing through an oil drop collector and a smoke dust collecting net, the oil drops are recovered, and purified gas can be directly discharged into the air.
2. The clean condensation centrifugal sedimentation method for kitchen fumes according to claim 1, wherein the heat exchange system in step (2) comprises a heat exchange water outlet pipe, a connecting bolt, a fume inlet channel, a heat fence, a heat exchange system water inlet pipe, a water pump, a water storage tank, a fume collecting net, an oil drop collecting device, and a fume outlet heat exchange system water outlet pipe, wherein the heat exchange water outlet pipe is communicated with the heat fence and then communicated with the heat exchange system water inlet pipe, the heat fence is composed of a twisted spiral pipe and is connected with the water pump, and the water pump pumps cooling brine in the heat exchange system water inlet pipe into the heat fence and then into the heat exchange system water outlet pipe.
3. The method of claim 1, wherein the twisted spiral pipe of step (2) is formed by twisting itself after pressing the pipe and applying an external force.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811192784 | 2018-10-08 | ||
| CN2018111927847 | 2018-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111006256A true CN111006256A (en) | 2020-04-14 |
Family
ID=70110999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910592352.3A Pending CN111006256A (en) | 2018-10-08 | 2019-07-03 | Condensing centrifugal sedimentation method for cleaning kitchen oil fume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111006256A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237106A (en) * | 2021-04-25 | 2021-08-10 | 广西大学 | Multi-phase separation and purification device for supercharged catering oil smoke |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1732363A (en) * | 2002-12-30 | 2006-02-08 | Bsh博世和西门子家用器具有限公司 | auxiliary cooling unit |
| CN102322704A (en) * | 2011-09-27 | 2012-01-18 | 程刚 | Semiconductor refrigerating and absorptive refrigerating interactive device |
| CN206160248U (en) * | 2016-11-10 | 2017-05-10 | 林志斌 | Three lampblack separating device of integrated kitchen |
| CN206447847U (en) * | 2016-12-20 | 2017-08-29 | 河北神禾生物质能科技有限公司 | A kind of biogas moisture trap |
| CN207727041U (en) * | 2018-01-09 | 2018-08-14 | 盐城环波能源科技有限公司 | A kind of gas-liquid separation tower |
-
2019
- 2019-07-03 CN CN201910592352.3A patent/CN111006256A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1732363A (en) * | 2002-12-30 | 2006-02-08 | Bsh博世和西门子家用器具有限公司 | auxiliary cooling unit |
| CN102322704A (en) * | 2011-09-27 | 2012-01-18 | 程刚 | Semiconductor refrigerating and absorptive refrigerating interactive device |
| CN206160248U (en) * | 2016-11-10 | 2017-05-10 | 林志斌 | Three lampblack separating device of integrated kitchen |
| CN206447847U (en) * | 2016-12-20 | 2017-08-29 | 河北神禾生物质能科技有限公司 | A kind of biogas moisture trap |
| CN207727041U (en) * | 2018-01-09 | 2018-08-14 | 盐城环波能源科技有限公司 | A kind of gas-liquid separation tower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237106A (en) * | 2021-04-25 | 2021-08-10 | 广西大学 | Multi-phase separation and purification device for supercharged catering oil smoke |
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Application publication date: 20200414 |
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| RJ01 | Rejection of invention patent application after publication |