CN111609441B - Central oil fume purification device and control method thereof - Google Patents
Central oil fume purification device and control method thereof Download PDFInfo
- Publication number
- CN111609441B CN111609441B CN201910139785.3A CN201910139785A CN111609441B CN 111609441 B CN111609441 B CN 111609441B CN 201910139785 A CN201910139785 A CN 201910139785A CN 111609441 B CN111609441 B CN 111609441B
- Authority
- CN
- China
- Prior art keywords
- oil
- pipeline main
- pressure piston
- main body
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- F24C15/2021—Arrangement or mounting of control or safety systems
Abstract
The invention discloses a central oil fume purification device, which comprises a plurality of range hoods and a common flue, wherein the common flue comprises a first pipeline main body, and an air outlet of each range hood is communicated with the first pipeline main body of the common flue through a smoke exhaust pipeline, and the central oil fume purification device is characterized in that: the pressure control valve is arranged between the bottoms of the first pipeline main body and the second pipeline main body and used for controlling the connection and disconnection of the two pipeline main bodies. Also discloses a control method of the central oil fume purification device.
Description
Technical Field
The invention relates to a purification device, in particular to a central oil fume purification device and a control method of the device.
Background
In the prior art, oil smoke in a kitchen is discharged into a flue check valve through a range hood and then is discharged into a longitudinal common flue in a building through the flue check valve to form a central oil smoke purification system.
The central purification system disclosed in the Chinese patent with the application number of 201410841523.9 comprises an oil smoke collecting pipeline, a purifier and a fan pipeline, wherein the oil smoke collecting pipeline, the purifier and the fan pipeline are sequentially connected to form a whole and are installed on a shock absorber and an installation base through fasteners, one end of an oil smoke connecting pipe A in the oil smoke collecting pipeline is communicated with an oil smoke outlet of a public flue through the installation base, the other end of the oil smoke connecting pipe A is connected with an emergency smoke exhaust port, each layer on the public flue is communicated with an air pipe of a range hood through an electric check valve, the side face of the oil smoke connecting pipe A is connected with one end of an oil smoke connecting pipe B to form a three-way pipeline structure, and the other end of the oil smoke connecting pipe B is communicated with the fan pipeline through the purifier and discharges smoke through a fan. Also, for example, chinese patent application No. 201520069291.X discloses a system for exhausting kitchen fumes from a residential building, which comprises an automatic range hood, a fume exhaust hose, and a compound flue, wherein a flow guide fan guides hot air into the fume exhaust hose, through a fume inlet of the compound flue, into the house flue, through a fume outlet of the house flue, into a common flue of the compound flue, to generate a chimney effect in the compound flue, and under the action of the chimney effect, exhaust gas and fumes generated during cooking are sucked into the compound flue and exhausted from a fume outlet of the compound flue disposed on a ceiling of the residential building.
However, in the above-mentioned prior arts, the oil smoke can be discharged from the common flue only by using the characteristics of the oil smoke itself, and the exhaust efficiency is low and the power consumption is large.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a central oil smoke purifying device, which can improve the efficiency of smoke discharge with low power consumption.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a central oil smoke purifier, includes a plurality of range hoods, public flue includes first pipeline main part, and through setting up smoke exhaust pipe and intercommunication, its characterized in that between the air outlet of every range hood and the first pipeline main part of public flue: the pressure control valve is arranged between the bottoms of the first pipeline main body and the second pipeline main body and used for controlling the connection and disconnection of the two pipeline main bodies.
In order to collect waste oil in the public flue and recycle, the waste oil recycling device further comprises a waste oil recycling device, the waste oil recycling device comprises a waste oil collecting and liquefying pool arranged below a first pipeline main body of the public flue, and the waste oil collecting and liquefying pool is communicated with the inside of the first pipeline main body.
According to one aspect of the invention, in order to facilitate the gas to be introduced into the common pressure control pipe, the waste oil recycling device further comprises an oil gas nozzle, the oil gas nozzle is used for injecting an oil gas mixture formed by mixing the waste oil in the atomized waste oil collecting and liquefying pool and the external gas into the second pipeline main body and located at a position below the pressure piston, and the waste oil recycling device further comprises an igniter used for igniting the oil gas mixture.
In order to control the introduction amount of the external gas conveniently, an air flow meter for detecting the gas flow and a flow control valve for controlling the on-off of the passage according to the detection result of the air flow meter are arranged on the passage between the external gas and the oil gas nozzle.
In order to automatically control the operation of the waste oil recycling device, the waste oil recycling device also comprises an electronic control device which is used for controlling an igniter and receiving the detection result of the air flow meter to control the flow control valve.
According to another aspect of the invention, in order to facilitate the introduction of gas into the common pressure control pipe and the control of the descending speed of the pressure piston, a driving device is arranged outside the top of the common pressure control pipe, the output end of the driving device is flexibly connected with the pressure piston, and an air inlet valve is arranged at the bottom of the second pipe body of the common pressure control pipe.
Preferably, the driving device is a cable motor, and the output end of the driving device is connected with the pressure piston through a cable.
In order to further filter the oil smoke in the public flue, a plurality of oil smoke purification nets are arranged in the first pipeline main body of the public flue, the oil smoke purification nets are in a conical shape with a small upper part and a big lower part, and the bottoms of the oil smoke purification nets are in contact with the inner side wall of the first pipeline main body.
For accelerating the separation back grease and flowing down, public flue's first pipeline main part is made by the metal, first pipeline main part periphery cladding has insulating heat-conducting layer, insulating heat-conducting layer periphery cladding has the zone of heating.
The first technical solution adopted by the present invention to solve the second technical problem is: a control method of the central oil smoke purification device is characterized in that: the method comprises the following steps:
1) after starting, firstly judging whether the range hoods connected with the same common flue start to work or not, if so, entering the step 2), and if not, ending; in an initial state, the pressure piston is positioned at the top of the second pipeline main body of the common pressure control pipe;
2) opening the pressure control valve, simultaneously opening the top of the second pipeline main body, and enabling the pressure piston to descend;
3) monitoring the position of the pressure piston in the descending process of the pressure piston, judging whether the pressure piston descends to the bottom, if so, entering the step 4), and if not, continuing to monitor the position of the pressure piston;
4) closing the pressure control valve, and injecting an oil-gas mixture of atomized waste oil and gas into the second pipeline main body at a position below the pressure piston by the oil-gas nozzle;
5) closing the top of the second pipeline main body, igniting an igniter, and enabling an oil-gas mixture sprayed from the oil-gas nozzle to explode and expand so as to enable the pressure piston to ascend;
6) in the process that the pressure piston moves upwards, air in the second pipeline main body and above the pressure piston is compressed until the pressure piston moves upwards to the highest point;
7) and (3) opening the pressure control valve, enabling the pressure piston to descend under the action of self weight and air pressure, compressing the gas in the second pipeline main body into the public flue by the pressure piston and pushing the oil smoke in the public flue to be upwards discharged in the process, and returning to the step 3).
The second technical solution adopted by the present invention to solve the second technical problem is: a control method of the central oil smoke purification device is characterized in that: the method comprises the following steps:
1) after starting, firstly judging whether the range hoods connected with the same common flue start to work or not, if so, entering the step 2), and if not, ending;
2) opening an air inlet valve, closing a pressure control valve and simultaneously opening the top of the second pipeline main body, wherein the driving device drives the pressure piston to ascend to the top of the second pipeline main body;
3) and (3) closing the air inlet valve, opening the pressure control valve, enabling the pressure piston to move downwards under the action of self weight, controlling the descending speed of the pressure piston by the driving device, compressing the gas in the second pipeline main body into the public flue by the pressure piston in the process, pushing the oil smoke in the public flue to be upwards discharged, and returning to the step 2).
Compared with the prior art, the invention has the advantages that: through setting up public pressure control pipe, set up the pressure piston that can go up and down in the body of public pressure control pipe to reserve gas when going upward, discharge gas in the public flue when down, so that upwards discharge with the oil smoke in the little power, high efficiency quickening public flue.
Drawings
FIG. 1 is a schematic view of a first embodiment of a central oil smoke purifying apparatus of the present invention;
FIG. 2 is a partial cross-sectional view of the common flue and common pressure control tubes of the central smoke purifying apparatus of the present invention;
FIG. 3 is a schematic view of a common flue, a common pressure control pipe and a waste oil recycling device of the central oil fume purification device of the present invention;
FIG. 4 is a flowchart of a control method of a first embodiment of the central cleaning apparatus according to the present invention;
fig. 5 is a schematic view of a central oil smoke purifying device of a second embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Example one
Referring to fig. 1 to 3, a central oil smoke purifying apparatus includes a plurality of extractor hoods 1 in a user-side kitchen, a common flue 2, a smoke exhaust duct 3 communicating each extractor hood 1 with the common flue 2, and a common pressure control pipe 4. Both the common flue 2 and the common pressure control duct 4 extend in a longitudinal, preferably vertical direction.
The common flue 2 includes a first pipeline main body 21, a plurality of oil smoke purification nets 22 arranged in the first pipeline main body 21, the exhaust pipe 3 communicates the air outlet of the range hood 1 with the first pipeline main body 21, the number and the position of the oil smoke purification nets 22 can correspond to the range hood 1, in this embodiment, the oil smoke purification nets 22 are located above the joint of the exhaust pipe 3 corresponding to each range hood 1 and the first pipeline main body 21. The first pipe main body 21 may be made of metal, such as steel.
The oil smoke purifying net 22 is preferably tapered with a small top and a large bottom, and the bottom of the oil smoke purifying net 22 contacts with the inner side wall of the first duct main body 21. The oil smoke purification net 22 is used for filtering the oil smoke entering the public flue 2, and the separated grease is condensed on the oil smoke purification net 22, flows towards the inner side wall of the first pipeline main body 21 along the net of the oil smoke purification net 22 under the action of gravity, and flows downwards to the bottom of the public flue 2. The oil smoke purification net 22 is preferably a honeycomb structure composed of regular hexagons with the side length of about 6mm, and can better adsorb grease.
The outer periphery of the first pipe main body 21 is coated with an insulating and heat-conducting layer 23, the outer periphery of the insulating and heat-conducting layer 23 is coated with a heating layer 24, and the heating layer 24 may be an element such as an electric heater. Heating layer 24 is operative to heat first conduit body 21 to assist the flow of grease down the interior sidewalls of first conduit body 21.
The common pressure control pipe 4 includes a second pipe body 41, and a pressure piston 42 disposed in the second pipe body 41, and the pressure piston 42 is movable up and down in the longitudinal direction along the second pipe body 41. The top of the second pipe body 41 may be opened or closed, for example, in a sealed state by closing the sealing cover 40, and the sealing cover 40 may be opened to communicate the inside of the second pipe body 41 with the outside. The second pipe body 41 may be made of metal, such as cast iron, and has a good pressure resistance. The inside of the top of the second pipe body 41, such as the inside of the sealing cover 40, is provided with a first pressure sensor 43. The first duct body 21 and the second duct body 41 are juxtaposed, closely arranged, and the first duct body 21 and the second duct body 41 are provided with a pressure control valve 44 between the bottoms, so that the communication or disconnection between the common flue 2 and the common pressure control pipe 4 can be controlled.
The bottoms of the first duct main body 21 of the common flue 2 and the second duct main body 41 of the common pressure control pipe 4 are provided with a waste oil reuse device 5, and the waste oil reuse device 5 is communicated with the first duct main body 21 and the second duct main body 41, respectively. The waste oil reusing device 5 may be a device of the prior art, and includes a waste oil collecting and liquefying tank 51, an electric waste oil pump 52, a waste oil filter 53, a flow control valve 54, an oil-gas nozzle 55, an air flow meter 56, an igniter 57 and an electronic control device 58. The waste oil collecting and liquefying tank 51 is located below the first pipeline main body 21, is communicated with the inside of the first pipeline main body 21, and is used for collecting grease flowing down from the first pipeline main body 21, and at this time, the bottom of the first pipeline main body 21 may be open, so that the grease can flow into the waste oil collecting and liquefying tank 51. The electric waste oil pump 52 is used for pumping the waste oil collecting and liquefying pool 51 into the waste oil filter 53, and the waste oil filtered by the waste oil filter 53 is atomized (needs to be atomized first, such as extracting light oil by deoxidation, fission and the like) and then enters the oil-gas nozzle 55. The air outside the common pressure control pipe 4 communicates with the oil and gas nozzle 55, the air flow meter 56 and the flow control valve 54 are provided in the air flow path between the outside air and the oil and gas nozzle 55, the air flow meter 56 detects the flow rate (atomized oil and air are mixed in a ratio of about 1 to 15) entering the oil and gas nozzle 55 through the flow control valve 54, and the flow control valve 54 controls the on/off of the path according to the detection result of the air flow meter 56. The air and the atomized waste oil are mixed in the oil-air nozzle 55 and sprayed out, and are ignited by the igniter 57 and expanded to explode. The electronic control unit 58 controls the operation of the electric waste oil pump 52 and the igniter 57, and controls the flow control valve 54 to open and close the passage of air into the oil jet nozzle 55 in response to the detection result of the air flow meter 56. The oil and gas nozzle 55 is communicated with the second pipeline body 41 of the common pressure control pipe 4.
Alternatively, the oil and gas nozzle 55 may receive externally supplied oil and gas as fuel instead of air.
In order to detect whether the range hood 1 on the user side works or not, a second pressure sensor 31 is arranged at the communication part of each smoke exhaust pipeline 3 and the common flue 2.
Referring to fig. 4, the control method of the above apparatus includes the steps of:
1) after starting, firstly, judging whether the range hood 1 connected with the same common flue 2 starts to work or not (if the first pressure sensor 31 detects pressure, judging), if so, entering the step 2, and if not, ending; in the initial state, the pressure piston 42 is located on the top of the second pipe body 41 of the common pressure control pipe 4;
2) opening the pressure control valve 44 and simultaneously opening the top of the second pipe body 41 of the common pressure control pipe 4, i.e. communicating the second pipe body 41 with the outside, if the sealing cover 40 on the top of the second pipe body 41 is removed, once the sealing cover 40 is removed, the state of the pressure piston 42 in force balance is broken, and the pressure piston 42 goes down under the action of self-weight;
3) monitoring the position of the pressure piston 42 in the descending process of the pressure piston 42, judging whether the pressure piston descends to the bottom, if so, entering the step 4), and if not, continuing to monitor the position of the pressure piston 42, wherein the position of the pressure piston 42 can be monitored by the existing technologies such as arranging infrared sensors and optical sensors;
4) the pressure control valve 44 is closed, and the oil-gas nozzle 55 injects the atomized oil-gas mixture of the waste oil and air (or fuel gas) into the second pipe main body 41 at a position below the pressure piston 42;
5) the sealing cover 40 on the top of the second pipeline body 41 of the common pressure control pipe 4 is started to seal the top of the second pipeline body 41, the electronic control device 58 controls the igniter 57 to ignite, and the oil-gas mixture sprayed out from the oil-gas nozzle 55 explodes and expands to enable the pressure piston 42 to move upwards;
6) because the top of the common pressure control pipe 4 is sealed, in the process that the pressure piston 42 moves upwards, the air in the second pipeline body 41 and above the pressure piston 42 is compressed until the pressure piston 42 moves upwards to the highest point, and the pressure signal monitored by the first pressure sensor 43 at the top is enhanced until the maximum value; the process is in a working mode; the pressure piston 42 receives increasingly larger resistance in the process of rising, and the gas at the lower part of the pressure piston starts to cool, and the gas pressure becomes smaller, so that the acceleration of the pressure piston 42 is firstly reduced to zero, then the speed is reduced to zero, and the pressure piston descends under the action of the gas pressure;
7) and (3) opening the pressure control valve 44, enabling the pressure piston 42 to move downwards under the action of self weight and air pressure after moving to the top, returning to the step 3) when the pressure signal is monitored to start to fall, indicating that the common pressure control pipe 4 exhausts into the common flue 2 in the process, and enabling the pressure piston 42 to compress the gas in the common pressure control pipe 4 into the common flue 2 and push the oil smoke in the common flue 2 to exhaust upwards.
Through constantly switching over of exhaust mode and acting mode, can realize that the oil smoke in supplementary public flue 2 discharges as soon as possible. In addition, in the above process, the opening and closing of the pressure control valve 44 and the top of the second pipe body 41 may be automatically controlled by a controller.
In the above process, after the igniter 57 is ignited, the relationship between the combustion work and the gravity work is: w _ lose + mgh is W _ frame, where W _ lose is the energy lost by the piston in working against gravity, and this variable is related to the height h, W _ frame is the total energy produced by combustion work, and m is the mass of the pressure piston. When the height is determined in relation to the mass of the pressure piston 42, the total energy produced by each combustion event can be estimated.
The exhaust speed can be controlled by controlling the ignition frequency, so that the exhaust speed of the common flue 2 can be controlled when the number of users (the number of the range hoods 1) is changed.
Example two
Referring to fig. 5, the present embodiment is different from the first embodiment in that a driving device 45, such as a cable motor, is disposed on the top outer side of the common pressure control pipe 4, the output end of the driving device 45 is flexibly connected to the pressure piston 42, such as by a cable 46, the pressure piston 42 is driven to move upwards by the driving device 45, and the falling speed of the pressure piston 42 can be controlled to control the air pressure in the common flue 2. The bottom of the second pipe body 41 of the common pressure control pipe 4 is provided with an air intake valve 47. The used oil reusing device 5 includes only the used oil collecting and liquefying reservoir 51 located below the first duct main body 21 of the common flue 2.
The control method of the device comprises the following steps:
1) after starting, firstly, judging whether the range hood 1 connected with the same common flue 2 starts to work or not (if the first pressure sensor 31 detects pressure, judging), if so, entering the step 2, and if not, ending;
2) opening the air intake valve 47, closing the pressure control valve 44, removing the sealing cover 40 on the top of the second pipe body 41 of the common pressure control pipe 4, and driving the pressure piston 42 to rise to the top of the second pipe body 41 of the common pressure control pipe 4 by the driving device 45; this is the suction mode;
3) closing the air inlet valve 47 and opening the pressure control valve 44, so that the pressure piston 42 moves downwards under the action of self weight, and the speed of the pressure piston 42 moving downwards can be controlled by the driving device 45 (controlling the speed of winding and unwinding the cable 46 to control the speed of the pressure piston 42 moving downwards), and the speed can be adjusted according to the pressure in the common pressure control pipe 4, so as to ensure that the pressure in the common pressure control pipe 4 is constant; this is the exhaust mode, and in this mode, the pressure piston 42 can compress the gas in the common pressure control pipe 4 into the common flue 2 and push the oil smoke in the common flue 2 to be exhausted upwards.
Through constantly switching between the air suction mode and the air exhaust mode, the oil smoke in the auxiliary public flue 2 can be exhausted as soon as possible.
Claims (6)
1. The utility model provides a central oil smoke purifier, includes a plurality of range hood (1), public flue (2) include first pipeline main part (21), and through setting up smoke exhaust pipe (3) and intercommunication, its characterized in that between the air outlet of every range hood (1) and the first pipeline main part (21) of public flue (2): the pressure control device is characterized by further comprising a public pressure control pipe (4), wherein the public pressure control pipe (4) comprises a second pipeline main body (41) with the top capable of being closed or opened and the bottom capable of being filled with external gas, a pressure piston (42) capable of ascending in the second pipeline main body (41) to be filled with the external gas or descending to press the external gas into the first pipeline main body (21), and a pressure control valve (44) for controlling the connection and disconnection between the two pipeline main bodies is arranged between the bottoms of the first pipeline main body (21) and the second pipeline main body (41); still include waste oil and recycle device (5), waste oil and recycle device (5) is including setting up waste oil collection liquefaction pond (51) of first pipeline main part (21) below of public flue (2), waste oil collection liquefaction pond (51) and first pipeline main part (21) in-connection, waste oil and recycle device (5) still include oil gas nozzle (55), oil gas nozzle (55) are used for the oil gas mixture after the waste oil that will atomize in waste oil collection liquefaction pond (51) and the external gas mixture of mixing to be sprayed into second pipeline main part (41) and are located pressure piston (42) below position, waste oil and recycle device still includes some firearm (57) that are used for lighting oil gas mixture.
2. The central oil smoke purifying apparatus of claim 1, characterized in that: an air flow meter (56) for detecting the gas flow and a flow control valve (54) for controlling the on-off of the passage according to the detection result of the air flow meter (56) are arranged on the passage between the external gas and the oil gas nozzle (55).
3. The central oil smoke purifying apparatus according to claim 2, characterized in that: the waste oil reusing device (5) further comprises an electronic control device (58) for controlling the igniter (57) and controlling the flow control valve (54) by receiving the detection result of the air flow meter (56).
4. A central oil smoke purification device according to any one of claims 1 to 3, characterized in that: a plurality of oil smoke purification nets (22) are arranged in a first pipeline main body (21) of the public flue (2), the oil smoke purification nets (22) are in a conical shape with a small upper part and a large lower part, and the bottoms of the oil smoke purification nets (22) are in contact with the inner side wall of the first pipeline main body (21).
5. A central oil smoke purification device according to any one of claims 1 to 3, characterized in that: first pipeline main part (21) of public flue (2) are made by the metal, first pipeline main part (21) periphery cladding has insulating heat-conducting layer (23), insulating heat-conducting layer (23) periphery cladding has zone of heating (24).
6. A control method of a central oil smoke purification device according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:
1) after starting, firstly judging whether the range hood (1) connected with the same common flue (2) starts to work or not, if so, entering the step 2, and if not, ending; in an initial state, the pressure piston (42) is positioned on the top of the second pipeline body (41) of the common pressure control pipe (4);
2) opening the pressure control valve (44) and simultaneously opening the top of the second pipe body (41), and starting descending the pressure piston (42);
3) monitoring the position of the pressure piston (42) in the descending process of the pressure piston (42), judging whether the pressure piston descends to the bottom, if so, entering the step 4), and if not, continuing to monitor the position of the pressure piston (42);
4) closing the pressure control valve (44), and injecting an oil-gas mixture of atomized waste oil and gas into the second pipe main body (41) at a position below the pressure piston (42) by the oil-gas nozzle (55);
5) closing the top of the second pipeline body (41), and igniting an igniter (57) to enable the oil-gas mixture sprayed out of the oil-gas nozzle (55) to expand explosively, so that the pressure piston (42) ascends;
6) during the upward movement of the pressure piston (42), the air in the second duct body (41) above the pressure piston (42) is compressed until the pressure piston (42) moves upward to the highest point;
7) and (3) opening the pressure control valve (44), enabling the pressure piston (42) to move downwards under the action of self weight and air pressure, compressing the gas in the second pipeline main body (41) into the common flue (2) by the pressure piston (42) in the process, pushing the oil smoke in the common flue (2) to be upwards discharged, and returning to the step 3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139785.3A CN111609441B (en) | 2019-02-26 | 2019-02-26 | Central oil fume purification device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139785.3A CN111609441B (en) | 2019-02-26 | 2019-02-26 | Central oil fume purification device and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111609441A CN111609441A (en) | 2020-09-01 |
| CN111609441B true CN111609441B (en) | 2022-01-21 |
Family
ID=72198029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910139785.3A Active CN111609441B (en) | 2019-02-26 | 2019-02-26 | Central oil fume purification device and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111609441B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657522A (en) * | 2018-06-29 | 2020-01-07 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
| CN112856511A (en) * | 2021-01-11 | 2021-05-28 | 宁波方太厨具有限公司 | Central flue system and control method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3800689A (en) * | 1972-07-24 | 1974-04-02 | L Brown | Building ventilating system |
| KR100932743B1 (en) * | 2008-01-21 | 2009-12-21 | 금성에어텍 주식회사 | Blower |
| CN202360363U (en) * | 2011-12-02 | 2012-08-01 | 山东科技大学 | Mining piston-type ventilator |
| CN203704095U (en) * | 2014-02-17 | 2014-07-09 | 吴建峰 | Integrated oil fume absorbing and exhausting system for building |
| CN104566588B (en) * | 2014-12-30 | 2017-01-04 | 杭州老板电器股份有限公司 | A kind of central purge system |
| CN204554925U (en) * | 2015-01-25 | 2015-08-12 | 王克俭 | Residential building kitchen fume discharges system |
| CN106051877B (en) * | 2016-08-11 | 2019-04-26 | 珠海格力电器股份有限公司 | Waste edible oil recyclable device |
| CN208536075U (en) * | 2018-06-13 | 2019-02-22 | 长沙悦纳环保科技有限公司 | A kind of energy-saving exhaust device that lampblack-preventing flows backward |
-
2019
- 2019-02-26 CN CN201910139785.3A patent/CN111609441B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111609441A (en) | 2020-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111609441B (en) | Central oil fume purification device and control method thereof | |
| CN203791800U (en) | Smoke-discharging and dust-removing system for flame cutting machine with large cutting thickness | |
| CN205925249U (en) | Online monitored control system of sack cleaner | |
| CN110665323A (en) | Waste gas purification treatment system suitable for die casting machine | |
| CN201954596U (en) | Oil and gas dual-purpose full-automatic civil kitchen range | |
| CN104676661B (en) | Integrated cooker for kitchen | |
| CN113117429A (en) | Flue gas treatment device and method for industrial boiler | |
| CN209338597U (en) | A kind of converter gas dedusting and residual neat recovering system | |
| CN104764026B (en) | A kind of gas handling system | |
| CN206274168U (en) | High-efficiency pulse formula flame blocking apparatus | |
| CN206356137U (en) | Vertical E field electrostatic fume eliminating apparatus | |
| CN205268860U (en) | Be used for kitchen flue doublestage to put out a fire and abluent device | |
| CN208282086U (en) | A kind of smokeless emission combustion furnace | |
| CN210964467U (en) | Waste gas purification treatment system suitable for die casting machine | |
| CN2802298Y (en) | Liquid pulse detonation ash remover | |
| CN201006377Y (en) | Oil field gas-filling boiler skid type flue gas dust cleaning apparatus | |
| CN207555607U (en) | A kind of small-sized rubbish incinerating and treating device | |
| CN219210263U (en) | Volatile lubricating grease waste gas recovery processing system | |
| CN207569884U (en) | A kind of purification flue dust incinerator | |
| CN201396771Y (en) | Commercial lampblack discharge device | |
| CN205191690U (en) | Automatic temperature measurement response work type safety smoke ventilator | |
| CN108758612A (en) | Smokeless emission combustion furnace | |
| CN2906355Y (en) | Chimney dust remover | |
| CN216219912U (en) | Smoke removing device for smoking | |
| CN216815155U (en) | Waste heat recovery equipment for boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |