CN109855138B - Oil smoke purifier based on parabola nature - Google Patents
Oil smoke purifier based on parabola nature Download PDFInfo
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- CN109855138B CN109855138B CN201910076665.3A CN201910076665A CN109855138B CN 109855138 B CN109855138 B CN 109855138B CN 201910076665 A CN201910076665 A CN 201910076665A CN 109855138 B CN109855138 B CN 109855138B
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Abstract
The invention relates to an oil fume purification device based on parabola properties, which comprises a box body, a first shell and a second shell, wherein the first shell is arranged in the box body; a first shell and a second shell are arranged in the box body, a liquid storage box is arranged at the bottom of the first shell, a spraying smoke removing mechanism is arranged in the first shell, and the spraying smoke removing mechanism is connected with a liquid inlet main pipe; a second shell is installed on the left side of the upper portion of the first shell, and a smoke exhaust fan is installed in the second shell. The invention solves the problems of uneven spraying of the absorption liquid, spraying dead angles and reduced spraying smoke removal efficiency of the existing range hood.
Description
Technical Field
The invention relates to the technical field of spraying equipment, in particular to an oil fume purification device based on parabola properties.
Background
The following problems are common to the existing range hoods: 1. because of lacking the oil smoke clearance system, it is very troublesome to wash, once the oil smoke gets into the crack of the machine, it is not too easy to wash, easy to breed the bacterium, influence the user's health; 2. the oil fume is discharged from time to time, so that the service life of the machine is influenced; 3. the oil fume is not thoroughly treated, so that a large amount of oil fume is still discharged into the air after treatment, and the surrounding environment is polluted. The invention creates a liquid flow uniform diffusion spraying device based on parabolic properties for a range hood.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an oil fume purification device based on parabola properties.
In order to solve the technical problems, the invention adopts the following technical scheme:
a kind of oil fume refining plant based on parabola nature, including the container body, first body, liquid inlet main pipe, liquid inlet pump, flue gas pipe, oil fume union joint, liquid storage box, liquid pump, liquid suction pipe, spray the soot blower, second body, smoke exhaust fan, air-supply line; the liquid storage box is connected with a liquid pumping pipe, the liquid pumping pipe extends downwards to the outside of the box body, and a liquid pumping pump is mounted on the liquid pumping pipe; a spraying smoke removal mechanism is arranged in the first shell and connected with a liquid inlet main pipe, and a liquid inlet pump is mounted on the liquid inlet main pipe; an oil fume pipe joint is arranged on the right side of the lower part of the first shell and connected with a flue gas pipe, and the lower end of the flue gas pipe extends to the outside of the box body; a second shell is installed on the left side of the upper portion of the first shell, a smoke exhaust fan is installed in the second shell, and the smoke exhaust fan is communicated with the first shell through an air inlet pipe.
Further, the spraying smoke removal mechanism comprises a first spraying unit and a second spraying unit, and the second spraying unit is arranged above the first spraying unit.
Further, the first spraying unit comprises a first reflecting plate, a first spray head, a first fixing plate, a second reflecting plate, a second spray head, a second fixing plate, a connecting pipe and a first branch pipe, wherein a first parabolic reflecting surface is arranged on the upper surface of the first reflecting plate, the first spray head is installed on the focus of the first parabolic reflecting surface, the first fixing plate is arranged on the right side of the first reflecting plate, and the first reflecting plate is fixedly installed on the inner wall of the first shell through the first fixing plate; a second parabolic reflecting surface is arranged on the lower surface of the second reflecting plate, the second nozzle is installed on the focus of the second parabolic reflecting surface, a second fixing plate is arranged on the right side of the second reflecting plate, and the second reflecting plate is fixedly installed on the inner wall of the first shell through the second fixing plate; the opening of the first reflecting plate is upwards installed, namely the first parabolic reflecting surface is upwards, the opening of the second reflecting plate is downwards installed, namely the second parabolic reflecting surface is downwards, and the first reflecting plate and the second reflecting plate are oppositely installed to form a reflecting group; the first spray head is communicated with the second spray head through a connecting pipe, the connecting pipe is connected with a first branch pipe, and the first branch pipe extends to the outside of the first shell and is communicated with the liquid inlet main pipe.
Furthermore, the second spraying unit comprises a third reflecting plate, a third spray head, a third fixing plate and a second branch pipe, the third reflecting plate is obliquely arranged above the first spraying unit, a third parabolic reflecting surface is arranged on the lower surface of the third reflecting plate, an included angle between a connecting line of two ends of the third parabolic reflecting surface and a horizontal plane is 30-60 degrees, the third spray head is arranged on a focus of the third parabolic reflecting surface, the third spray head is connected with the second branch pipe, and the second branch pipe extends to the outside of the first shell and is communicated with the liquid inlet main pipe; and a third fixing plate is arranged on the right side of the third reflecting plate, and the third reflecting plate is fixedly installed on the inner wall of the first shell through the third fixing plate.
Furthermore, the second sprays the top of unit and still is equipped with first flue gas filter screen and second flue gas filter screen, first flue gas filter screen and second flue gas filter screen slope installation, are parallel to each other.
Furthermore, a smoke exhaust pipe is arranged at the top of the second shell and extends upwards to the outside of the box body; and a fourth reflecting plate is arranged at the bottom of the second shell, a fourth parabolic reflecting surface is arranged on the upper surface of the fourth reflecting plate, and an air outlet of the smoke exhauster is positioned at the focus of the fourth parabolic reflecting surface.
Furthermore, the center of the fourth parabolic reflecting surface is provided with a downward oil discharge hole, the oil discharge hole is connected with the connecting seat, the center of the connecting seat is provided with a threaded hole with a downward opening, a threaded hollow pipe is installed in the threaded hole, the upper end of the threaded hollow pipe is communicated with the oil discharge hole, and the lower end of the threaded hollow pipe is connected with the oil receiving disc.
The invention has the following beneficial effects:
the paraboloid has the following properties: the water column emitted from the water source at the focus of the paraboloid is reflected into parallel water columns which are uniformly dispersed after collision and reflection of the paraboloid, and the reflected water columns are all parallel to the symmetry axis of the paraboloid. The invention designs a novel high-efficiency range hood by utilizing the unique property of a paraboloid, oil smoke absorption liquid is respectively pumped to a first spray head and a second spray head through a liquid inlet main pipe, a liquid inlet pump, a first branch pipe and a connecting pipe, and as the first spray head is arranged on the focus of a first parabolic reflecting surface and the second spray head is arranged on the focus of a second parabolic reflecting surface, the oil smoke absorption liquid can be reflected into uniform water columns parallel to the symmetry axis of the parabolic reflecting surface according to the property of the paraboloid. When oil smoke enters the first shell from the joint of the smoke pipe and the oil smoke pipe, the uniformly dispersed and mutually parallel water columns uniformly spray the entering oil smoke from the upper direction and the lower direction to absorb the oil smoke for the first time.
The ascending left side below that gets into the third reflecting plate of surplus unabsorbed oil smoke, because the lower surface of third reflecting plate is equipped with the parabolic plane of third, the both ends line of the parabolic plane of third is 30-60 with the contained angle of horizontal plane, installs and is provided with the third shower nozzle on the focus of the parabolic plane of third, the third shower nozzle is responsible for with the feed liquor through the second branch pipe and is linked to each other, consequently, the oil smoke absorption liquid is responsible for, the second branch pipe is pumped to the third shower nozzle through the feed liquor, third shower nozzle spun oil smoke absorption liquid is reflected into parallel homodisperse's slant water column through the collision reflection of the parabolic plane of third, the slant water column carries out the secondary absorption to surplus unabsorbed oil smoke.
The oil smoke after the second absorption enters the smoke exhaust fan after being filtered by the first smoke filter screen and the second smoke filter screen, and then is upwards exhausted to the outside of the box body from the smoke exhaust fan and the smoke exhaust pipe. Preferably, a fourth reflection plate is arranged at the bottom of the second shell, a fourth parabolic reflection surface is arranged on the upper surface of the fourth reflection plate, and the air outlet of the smoke exhaust fan is located at the focus of the fourth parabolic reflection surface. The oil smoke after being absorbed twice and filtered twice is ejected from an air outlet of the smoke exhaust machine to impact a fourth parabolic reflecting surface, and then uniform and upward parallel smoke is formed and is upwards exhausted to the outside of the box body from the smoke exhaust pipe. The oil droplets adsorbed on the fourth parabolic reflecting surface enter the oil receiving disc through the oil discharge hole and the threaded hollow pipe in the center of the fourth parabolic reflecting surface, and the oil receiving disc can be periodically detached and cleaned.
Even if the first nozzle, the second nozzle and the third nozzle are worn after being used for a period of time, the spraying collision of the absorption liquid still obeys the parabolic property, so that the absorption liquid sprayed by the nozzles can be uniformly distributed in the space after collision, a spraying dead angle is not formed, and the oil smoke can be efficiently cleaned and absorbed. The invention has the advantages of ingenious design and novel concept, solves the problems of uneven water column distribution, spraying dead angle and poor washing and absorbing effects after the spray head is worn and the spray hole is blocked in the traditional technology, and has low cost and simple manufacture.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the first spraying unit.
Fig. 3 is a schematic structural view of the second spraying unit.
Fig. 4 is a schematic view of the internal structure of the second housing.
In the attached drawings, 1-a box body, 2-a flue gas pipe, 3-an oil fume pipe joint, 4-a main liquid inlet pipe, 5-a liquid inlet pump, 6-a first spraying unit, 7-a second spraying unit, 8-a first flue gas filter screen, 9-a second flue gas filter screen, 10-an air inlet pipe, 11-a flue gas pipe, 12-a smoke exhauster, 13-a second shell, 14-a first shell, 15-a liquid storage box, 16-a liquid pumping pipe, 17-a liquid pumping pump, 18-a first reflection plate, 19-a first parabolic reflection surface, 20-a first fixing plate, 21-a first spray head, 22-a first branch pipe, 23-a connecting pipe, 24-a second fixing plate, 25-a second spray head, 26-a second reflection plate, 27-a second parabolic reflection surface, 28-a second branch pipe, 29-a third spray head, 30-a third reflection plate, 31-a third parabolic reflection surface, 32-a third fixing plate, 33-an air outlet, 34-a fourth reflection plate, 35-a fourth parabolic reflecting surface, 36-an oil discharge hole, 37-a connecting seat, 38-a threaded hollow pipe and 39-an oil receiving disc.
Detailed Description
The following description of the embodiments refers to the accompanying drawings.
As shown in fig. 1, a parabolic oil fume purification device includes a box body 1, a first shell 14, a main liquid inlet pipe 4, a liquid inlet pump 5, a flue gas pipe 2, a flue gas pipe joint 3, a liquid storage box 15, a liquid pumping pump 17, a liquid pumping pipe 16, a spraying smoke removing mechanism, a second shell 13, and a smoke exhaust machine 12.
The box 1 adopts the stainless steel sheet preparation, for the cuboid, installs the first casing 14 and the second casing 13 of two vertical installations through bolt fastening or welded mode in the box 1, first casing 14 and second casing 13 also are the cuboid, are formed by the stainless steel sheet welding. The right side of the lower part of the first shell 14 is provided with an oil smoke pipe joint 3, the oil smoke pipe joint 3 is connected with a smoke pipe 2, and the lower end of the smoke pipe 2 extends to the outside of the box body 1. A second shell 13 is installed on the left side of the upper portion of the first shell 14, and a smoke exhaust fan 12 is installed in the second shell 13.
A liquid storage box 15 is placed at the bottom of the first shell 14, the liquid storage box 15 is a stainless steel box body with an upper opening, the liquid storage box 15 is connected with a liquid pumping pipe 16 installed at the left lower part of the first shell 14, the liquid pumping pipe 16 extends downwards to the outside of the box body 1, and a liquid pumping pump 17 is installed on the liquid pumping pipe 16.
Be equipped with in the first casing 14 and spray smoke abatement mechanism, it is responsible for 4 with the feed liquor to spray smoke abatement mechanism, the feed liquor is responsible for and is installed feed liquor pump 5 on 4. The spraying smoke removal mechanism comprises a first spraying unit 6 and a second spraying unit 7, and the second spraying unit 7 is arranged above the first spraying unit 6.
As shown in fig. 2, the first spray unit 6 includes a first reflection plate 18, a first spray head 21, a first fixing plate 20, a second reflection plate 26, a second spray head 25, a second fixing plate 24, a connection pipe 23, and a first branch pipe 22.
The first reflection plate 18 is made of a stainless steel plate or a galvanized plate, the upper surface of the first reflection plate 18 is provided with a first parabolic reflection surface 19, the first nozzle 21 is installed at the focus of the first parabolic reflection surface 19, the right side of the first reflection plate 18 is fixedly connected with a first fixing plate 20 in a welding or bolt connection mode, and the first fixing plate 20 is fixedly installed on the inner wall of the first shell 14 in a welding or bolt connection mode.
The second reflection plate 26 is made of a stainless steel plate or a galvanized plate, a second parabolic reflection surface 27 is arranged on the lower surface of the second reflection plate 26, the second nozzle 25 is installed at the focus of the second parabolic reflection surface 27, a second fixing plate 24 is arranged on the right side of the second reflection plate 26 in a welding or bolt connection mode, and the second reflection plate 26 is fixedly installed on the inner wall of the first shell 14 through the second fixing plate 24. The first reflecting plate 18 is installed with an opening upward, i.e. the first parabolic reflecting surface 19 faces upward, the second reflecting plate 26 is installed with an opening downward, i.e. the second parabolic reflecting surface 27 faces downward, and the first reflecting plate 18 and the second reflecting plate 26 are installed opposite to each other to form a reflecting group. The first spray head 21 is communicated with the second spray head 25 through a connecting pipe 23, the connecting pipe 23 is connected with a first branch pipe 22, and the first branch pipe 22 extends to the outside of the first shell 14 and is communicated with the main liquid inlet pipe 4.
According to the invention, by utilizing the 'paraboloid property', when the absorption liquid is respectively pumped to the first spray head 21 and the second spray head 25 through the liquid inlet main pipe 4, the liquid inlet pump 5, the first branch pipe 22 and the connecting pipe 23, as the first spray head 21 is arranged on the focus of the first parabolic reflecting surface 19 and the second spray head 25 is arranged on the focus of the second parabolic reflecting surface 27, the oil smoke absorption liquid can be reflected into a uniform water column parallel to the symmetry axis of the parabolic reflecting surface according to the paraboloid property. When the oil smoke enters the first casing 14, the uniformly dispersed and mutually parallel water columns uniformly spray the entering oil smoke from the upper direction and the lower direction, so that the oil smoke is absorbed for the first time.
As shown in fig. 3, the second spray unit 7 includes a third reflection plate 30, a third spray head 29, a third fixing plate 32, and a second branch pipe 28. The third reflecting plate 30 is obliquely installed above the first spraying unit 6, a third parabolic reflecting surface 31 is arranged on the lower surface of the third reflecting plate 30, and an included angle formed by a connecting line of two ends of the third parabolic reflecting surface 31 and a horizontal plane is 30-60 degrees, preferably 45 degrees. The third spray head 29 is arranged at the focus of a third parabolic reflecting surface 31, the third spray head 29 is connected with a second branch pipe 28, and the second branch pipe 28 extends to the outside of the first shell 14 and is communicated with the main liquid inlet pipe 4; the right side of the third reflection plate 30 is fixedly connected with a third fixing plate 32 by welding or bolt connection, and the third fixing plate 32 is fixedly mounted on the inner wall of the first housing 14 by welding or bolt connection.
After the first absorption, the remaining unabsorbed oil smoke rises and gets into the left side below of third reflecting plate 30, because the lower surface of third reflecting plate 30 is equipped with third parabolic reflecting surface 31, the both ends line of third parabolic reflecting surface 31 is 30-60 with the contained angle of horizontal plane, installs and is provided with third shower nozzle 29 on the focus of third parabolic reflecting surface 31, third shower nozzle 29 is responsible for 4 through second branch pipe 28 and feed liquor and is linked to each other, consequently, the oil smoke absorbing liquid is responsible for 4, second branch pipe 28 through the feed liquor and is pumped third shower nozzle 29, third shower nozzle 29 spun oil smoke absorbing liquid is reflected into parallel homodisperse's slant water column after the collision reflection of third parabolic reflecting surface 31, the slant water column carries out the second absorption to the remaining unabsorbed oil smoke.
As shown in fig. 1, a first flue gas filter screen 8 and a second flue gas filter screen 9 are further arranged above the second spraying unit 7, and the first flue gas filter screen 8 and the second flue gas filter screen 9 are obliquely installed and are parallel to each other. The oil smoke after the second absorption is filtered by the first smoke filter 8 and the second smoke filter 9, and then enters the second shell 13.
As shown in fig. 4, an induced draft fan 12 is installed in the second housing 13, and an air inlet of the induced draft fan 12 is communicated with the first housing 14 through an air inlet pipe 10. The top of the second shell 13 is provided with a smoke exhaust pipe 11, and the smoke exhaust pipe 11 extends upwards to the outside of the box body 1.
A fourth reflection plate 34 is welded at the bottom of the second shell 13, a fourth parabolic reflection surface 35 is arranged on the upper surface of the fourth reflection plate 34, and the air outlet 33 of the smoke exhaust fan 12 is located on the focus of the fourth parabolic reflection surface 35. A downward oil discharge hole 36 is formed in the center of the fourth parabolic reflecting surface 35, and the oil discharge hole 36 is communicated with a connecting seat 37. The connecting seat 37 is made of stainless steel material, a threaded hole with a downward opening is formed in the center of the connecting seat 37, a threaded hollow pipe 38 is installed in the threaded hole, the upper end of the threaded hollow pipe 38 is communicated with the oil discharge hole 36, and the lower end of the threaded hollow pipe 38 is connected with the oil receiving disc 39.
The oil smoke after twice absorption and twice filtration is ejected from the air outlet 33 of the smoke exhaust machine 12 to impact the fourth parabolic reflecting surface 35, and then uniform upward parallel smoke is formed and is exhausted upward from the smoke exhaust pipe 11 to the outside of the box body 1. The oil drops adsorbed on the fourth parabolic reflecting surface 35 enter an oil receiving disc 39 through an oil discharge hole 36 and a threaded hollow pipe 38 in the center of the fourth parabolic reflecting surface 35, and the oil receiving disc 39 can be periodically detached and cleaned. The invention has the advantages of ingenious design and novel concept, solves the problems of uneven water column distribution, spraying dead angle and poor washing and absorbing effects after the spray head is worn and the spray hole is blocked in the traditional technology, and has low cost and simple manufacture.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. It should be noted that the present invention may be practiced using conventional techniques, which are not specifically described. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention.
Claims (4)
1. A kind of oil fume refining plant based on parabola nature, including the container body, first body, liquid inlet main pipe, liquid inlet pump, flue gas pipe, oil fume union joint, liquid storage box, liquid pump, liquid suction pipe, spray the soot blower, second body, smoke exhaust fan, air-supply line; the liquid storage box is connected with a liquid pumping pipe, the liquid pumping pipe extends downwards to the outside of the box body, and a liquid pumping pump is mounted on the liquid pumping pipe; a spraying smoke removal mechanism is arranged in the first shell and connected with a liquid inlet main pipe, and a liquid inlet pump is mounted on the liquid inlet main pipe; an oil fume pipe joint is arranged on the right side of the lower part of the first shell and connected with a flue gas pipe, and the lower end of the flue gas pipe extends to the outside of the box body; the second casing is installed in the left side on first casing upper portion, install the induced-draft fan in the second casing, the induced-draft fan is linked together its characterized in that through air-supply line and first casing:
the spraying smoke removal mechanism comprises a first spraying unit and a second spraying unit, and the second spraying unit is arranged above the first spraying unit; the first spraying unit comprises a first reflecting plate, a first spray head, a first fixing plate, a second reflecting plate, a second spray head, a second fixing plate, a connecting pipe and a first branch pipe, wherein the upper surface of the first reflecting plate is provided with a first parabolic reflecting surface, the first spray head is arranged on the focus of the first parabolic reflecting surface, the right side of the first reflecting plate is provided with the first fixing plate, and the first reflecting plate is fixedly arranged on the inner wall of the first shell through the first fixing plate; a second parabolic reflecting surface is arranged on the lower surface of the second reflecting plate, the second nozzle is installed on the focus of the second parabolic reflecting surface, a second fixing plate is arranged on the right side of the second reflecting plate, and the second reflecting plate is fixedly installed on the inner wall of the first shell through the second fixing plate; the opening of the first reflecting plate is upwards installed, namely the first parabolic reflecting surface is upwards, the opening of the second reflecting plate is downwards installed, namely the second parabolic reflecting surface is downwards, and the first reflecting plate and the second reflecting plate are oppositely installed to form a reflecting group; the first spray head is communicated with the second spray head through a connecting pipe, the connecting pipe is connected with a first branch pipe, and the first branch pipe extends to the outside of the first shell and is communicated with the liquid inlet main pipe;
the second spraying unit comprises a third reflecting plate, a third spray head, a third fixing plate and a second branch pipe, the third reflecting plate is obliquely arranged above the first spraying unit, a third parabolic reflecting surface is arranged on the lower surface of the third reflecting plate, an included angle between a connecting line of two ends of the third parabolic reflecting surface and a horizontal plane is 30-60 degrees, the third spray head is arranged on a focus of the third parabolic reflecting surface, the third spray head is connected with the second branch pipe, and the second branch pipe extends to the outside of the first shell and is communicated with the liquid inlet main pipe; and a third fixing plate is arranged on the right side of the third reflecting plate, and the third reflecting plate is fixedly installed on the inner wall of the first shell through the third fixing plate.
2. The oil smoke purification device based on the parabola nature as claimed in claim 1, characterized in that: the first flue gas filter screen and the second flue gas filter screen are obliquely arranged and are parallel to each other.
3. The oil smoke purification device based on the parabola nature as claimed in claim 1, characterized in that: a smoke exhaust pipe is arranged at the top of the second shell and extends upwards to the outside of the box body; and a fourth reflecting plate is arranged at the bottom of the second shell, a fourth parabolic reflecting surface is arranged on the upper surface of the fourth reflecting plate, and an air outlet of the smoke exhauster is positioned at the focus of the fourth parabolic reflecting surface.
4. A parabolic nature based fume purification apparatus according to claim 3, wherein: the center of the fourth parabolic reflecting surface is provided with a downward oil discharge hole, the oil discharge hole is connected with the connecting seat, the center of the connecting seat is provided with a threaded hole with a downward opening, a threaded hollow pipe is installed in the threaded hole, the upper end of the threaded hollow pipe is communicated with the oil discharge hole, and the lower end of the threaded hollow pipe is connected with the oil receiving disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076665.3A CN109855138B (en) | 2019-01-26 | 2019-01-26 | Oil smoke purifier based on parabola nature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076665.3A CN109855138B (en) | 2019-01-26 | 2019-01-26 | Oil smoke purifier based on parabola nature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109855138A CN109855138A (en) | 2019-06-07 |
| CN109855138B true CN109855138B (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910076665.3A Active CN109855138B (en) | 2019-01-26 | 2019-01-26 | Oil smoke purifier based on parabola nature |
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| CN (1) | CN109855138B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU373489A1 (en) * | 1971-01-18 | 1973-03-12 | Барнаульский хлопчато бумажный комбинат | AESECUTION'5 and A_I |
| CN2334478Y (en) * | 1997-06-11 | 1999-08-25 | 夏日昌 | Oil and smoke processor without substituting and cleaning filter material |
| JP5683532B2 (en) * | 2012-05-23 | 2015-03-11 | 五十嵐 徹 | Dust collector |
| CN203648377U (en) * | 2014-01-14 | 2014-06-18 | 天津仁德科技有限公司 | Impinging stream reaction tower for flue gas desulfurization and dust removal |
| CN106378269B (en) * | 2016-11-10 | 2019-04-05 | 吉首大学 | A kind of high-efficiency spray tower using elliptic optical focal property |
| CN206320824U (en) * | 2016-12-13 | 2017-07-11 | 北京东方圣厨厨房设备有限公司 | Percussion flow cooking fume control equipment |
| CN207170051U (en) * | 2017-09-18 | 2018-04-03 | 罗励然 | A kind of centrifugal water smoke machine |
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2019
- 2019-01-26 CN CN201910076665.3A patent/CN109855138B/en active Active
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Effective date of registration: 20211203 Address after: 610061 No. 536, floor 5, building 1, No. 1388, middle section of Tianfu Avenue, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan Patentee after: Sichuan Hongyuan Environmental Protection Engineering Co.,Ltd. Address before: 416007 No.120, Renmin South Road, Jishou City, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province Patentee before: JISHOU University |