CN110887085A

CN110887085A - Kitchen oil smoke treatment and discharge system

Info

Publication number: CN110887085A
Application number: CN201911160574.4A
Authority: CN
Inventors: 姚伟德
Original assignee: Suzhou Aohe Ventilation System Co Ltd
Current assignee: Suzhou Zhaohe Huanneng Technology Co.,Ltd.
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-03-17

Abstract

The invention discloses a kitchen lampblack treatment and discharge system, which belongs to the field of lampblack treatment and comprises a range hood arranged indoors, an upper lampblack discharge system and a lower smoke discharge system, wherein the upper lampblack discharge system comprises an upper smoke discharge pipeline, an upper exhaust device and a total smoke discharge path; the lower smoke exhaust system comprises a lower exhaust device and a lower exhaust pipeline, and the lower exhaust pipeline is arranged at the bottom of the indoor wall and is communicated with the outdoor space through the lower exhaust device; the air supply device is characterized by further comprising an air supply device, an air supply opening is formed in the indoor wall, and the indoor air pressure is greater than the air pressure in the total smoke exhaust path after air is supplied from the air supply opening through the air supply device. The invention avoids the problem that the normal emission of kitchen oil smoke cannot be met due to overlarge emission load of the common flue, effectively reduces the phenomena of backward flowing and smell channeling of the oil smoke, and has the effects of environmental protection, energy conservation, emission reduction and noise reduction.

Description

Kitchen oil smoke treatment and discharge system

Technical Field

The invention relates to the technical field of oil fume treatment, in particular to a household kitchen oil fume treatment and discharge system.

Background

The household kitchen can produce more oil smoke when in use, the air in the kitchen, even in living rooms, horizontal type and the like is easily in a turbid state, various decorative articles can be polluted, and the oil smoke is generally sucked away by the range hood and discharged into a public flue, so that the air is kept clear, and a good household environment is created.

The main and auxiliary type public flues are mainly adopted for oil smoke emission of a general community building, and most residents like to use a large-air-volume range hood, because when a plurality of residents use the public flues simultaneously, the internal air pressure of the residents is greater than the indoor air pressure of the residents, and the kitchen is in a negative pressure state, so that the range hood is not beneficial to normally discharging oil smoke, the outward air draft power of the range hood can only be increased, the energy consumption is increased, and great noise is generated.

Meanwhile, the check valve on the range hood is mostly in a structure of wind power opening of the range hood and gravity closing of the valve plate, and a small part of the check valve is additionally provided with a spring on the valve plate to assist the valve to be closed. In order to ensure that the wind power of the range hood can blow off the check valve plate, the weight or the spring force of the valve plate cannot be too large, so that the closing force of the valve is small. Because the valve plates are easy to be adhered by oil dirt, the check valve is not opened and closed in place after adhesion, and the air exhaust is not smooth and the air volume is attenuated as a result of the non-in-place opening; the result of improper closing is that a large amount of oil smoke flows backward and smells are mixed.

When the exhaust volume of the main flue rises to a certain degree, the auxiliary flue connected with the range hood can generate negative pressure to prevent the oil smoke from flowing backwards. However, the air exhaust amount is too high, larger negative pressure can be generated, the valve plate of the check valve can be sucked and opened by the too large negative pressure, the sucked valve plate can not be effectively closed due to the adhesion of oil dirt, and the oil smoke can flow backwards when the negative pressure of the auxiliary flue disappears when the pressure of the main flue is reduced. Because the total exhaust volume in the flue depends on the number of the smoke blowers which are opened simultaneously and the exhaust volume of each smoke blower, the smoke blowers can not be controlled by a single household, the suction probability of the check valve is high when the total exhaust volume is large, and the reason why the oil smoke flows backwards is sometimes unavailable. Most of the oil smoke flows backward and has smell fleeing because most of residents like to use a large-air-volume range hood.

In summary, how to still effectively remove indoor oil smoke when the public flue is in a smoke exhaust load state, and solve the problem of oil smoke flowing backwards and channeling smell at the same time, needs to be solved urgently.

Disclosure of Invention

The invention aims to provide a kitchen oil fume treatment and discharge system which has the effects of avoiding the situation that the normal discharge of the kitchen oil fume cannot be met due to overlarge discharge load of a common flue and effectively reducing the backflow and smell channeling of the oil fume.

The technical purpose of the invention is realized by the following technical scheme:

a kitchen oil fume treatment and discharge system comprises a range hood installed indoors, and comprises an upper exhaust system and a lower exhaust system, wherein the upper exhaust system comprises an upper exhaust pipeline, an upper exhaust device and a main exhaust path, one end of the upper exhaust pipeline is connected with the range hood, the other end of the upper exhaust pipeline is communicated with the main exhaust path through the upper exhaust device, and the main exhaust path is communicated with the outside;

the lower smoke exhaust system comprises a lower exhaust device and a lower exhaust pipeline, and the lower exhaust pipeline is arranged at the bottom of the indoor wall and is communicated with the outdoor space through the lower exhaust device;

the air supply device is characterized by further comprising an air supply device, an air supply opening is formed in the indoor wall, and the indoor air pressure is greater than the air pressure in the total smoke exhaust path after air is supplied from the air supply opening through the air supply device.

By adopting the technical scheme, the air supplementing device can supplement air according to the pressure difference between the indoor space and the outdoor space, so that the micro-positive pressure is always kept in the indoor space, oil smoke can be automatically discharged outwards under the action of the pressure difference, and the oil smoke is not easy to flow backwards and play odor; by means of the arrangement of the lower exhaust system, the lower exhaust system and the upper exhaust system exhaust smoke together, the indoor smoke exhaust capacity is improved, and large particles in the smoke are effectively exhausted outwards. Because the upper smoke exhaust system, the lower smoke exhaust system and the air supplementing device can form an independent kitchen smoke exhaust system and are not influenced by overlarge load of a total smoke exhaust path, the normal emission of oil smoke is ensured without increasing the exhaust power of the range hood, and the energy consumption and the noise are reduced.

The invention is further configured to: the lower air exhaust device and the upper air exhaust device are started synchronously, and the lower air exhaust device is electrically connected with the oil smoke concentration detection sensor.

By adopting the technical scheme, the lower exhaust device can be passively started according to the set data of the oil smoke concentration detection sensor to remove the oil smoke in the kitchen so as to reach the target set value.

The invention is further configured to: the air supply opening, the upper smoke exhaust pipeline and the lower smoke exhaust pipeline are all provided with primary filtering sections.

Through adopting above-mentioned technical scheme, the primary filter section can make the indoor new trend of benefit in carry out prefilter and purification, guarantees to get into indoor air clean, also can carry out the prefilter to exhaust flue gas.

The invention is further configured to: the air supplementing device comprises a residual pressure valve arranged at the air supplementing opening.

Through adopting above-mentioned technical scheme, the residual pressure valve can be according to indoor and always discharge fume the automatic new trend of mending of the pressure differential value between the way to make indoor compare in always discharging fume the way and keep the pressure-fired all the time.

The invention is further configured to: the air supplementing device comprises an induced draft fan, an air outlet is formed in the room, the induced draft fan is installed at the air supplementing opening, and an air exhaust pipeline is communicated between the induced draft fan and the air outlet.

Through adopting above-mentioned technical scheme, the draught fan can be according to indoor outer differential pressure value, the quantitative new trend of introducing to indoor to finally discharge from the air outlet.

The invention is further configured to: the upper exhaust device comprises an upper exhaust fan, and the upper exhaust fan is arranged in the range hood or in the upper exhaust pipeline.

Through adopting above-mentioned technical scheme, the last draught fan that arranges can realize with indoor oil smoke suction to total exhaust in the flue.

The invention is further configured to: the upper exhaust device comprises an exhaust main machine positioned outdoors, the main smoke exhaust path comprises an upright pipeline arranged indoors or outdoors, and a connecting pipeline is communicated between the exhaust main machine and the upright pipeline.

Through adopting above-mentioned technical scheme, the host computer of airing exhaust can realize constantly outwards taking out indoor oil smoke, and install it in outdoor still can conveniently overhaul.

The invention is further configured to: and a maintenance valve is arranged in the connecting pipeline and is electrically connected with the exhaust main machine.

Through adopting above-mentioned technical scheme, when the host computer that airs exhaust breaks down and needs the maintenance, or when needing to clear up its inside because of long-term the use, the maintenance valve is closed and can be completely cut off the oil smoke and discharge from the host computer department of airing exhaust once more, and the oil smoke at this moment can outwards be discharged through total tub of discharging fume.

The invention is further configured to: and a coarse filter screen layer, an electrostatic adsorption device and a UV photolysis device are arranged in the exhaust main machine.

By adopting the technical scheme, the UV photolysis device, the electrostatic adsorption device and the coarse filter screen layer can purify and treat the oil fume discharged from the kitchen, so that the environment is not easily polluted.

The invention is further configured to: further comprises a CO installed indoors₂And a concentration detection sensor.

By adopting the technical scheme, indoor CO can be detected₂The concentration and lower smoke discharging system can discharge smoke and simultaneously form an indoor ventilation system together with the air supplementing device.

In conclusion, the invention has the following beneficial effects:

1. through the arrangement of the upper smoke exhaust system, the lower smoke exhaust system and the air supplementing device, the influence of smoke exhaust load in a main smoke exhaust channel can be avoided, and micro-positive pressure is always kept indoors, so that the effects of effectively removing oil smoke, saving energy, reducing emission and preventing the oil smoke from flowing backwards and channeling smell are achieved;

2. through the setting of primary filter section, UV photodissociation device, electrostatic adsorption device and coarse filter screen layer, can effectively carry out filtration treatment to the harmful gas in the exhaust oil smoke, reduce the pollution to the environment.

Drawings

FIG. 1 is a schematic structural view for embodying the entirety in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1, illustrating the structure of the lower smoke evacuation system;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is a schematic structural view for embodying the whole in embodiment 2 of the present invention;

fig. 5 is a schematic structural view for embodying the inside of the exhaust main machine in embodiment 2 of the present invention;

fig. 6 is a schematic structural view for embodying the whole in embodiment 3 of the present invention.

In the figure, 1, a range hood; 2. an upper smoke exhaust system; 21. an upper smoke exhaust pipeline; 22. an upper exhaust device; 23. a total smoke exhaust path; 231. connecting a pipeline; 232. a service valve; 233. rain-proof caps; 3. a lower fume exhaust system; 31. lower air exhaust devicePlacing; 32. a lower smoke exhaust pipeline; 4. a wind supplementing device; 41. an air supply opening; 42. a residual pressure valve; 43. an induced draft fan; 44. an exhaust duct; 45. an air outlet; 5. a smoke concentration detection sensor; 6. a primary filtering section; 7. a UV photolysis device; 8. an electrostatic adsorption device; 9. a coarse filter screen layer; 10. CO 2₂And a concentration detection sensor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: as shown in fig. 1, the system for treating and discharging kitchen fumes disclosed by the invention comprises a range hood 1, an upper fume exhaust system 2, a fume concentration detection sensor 5, a lower fume exhaust system 3 and an air supply device 4, wherein the range hood 1 is installed right above a cooking bench, and the fume concentration detection sensor 5 is installed on one side of the range hood 1.

As shown in fig. 1, the upper smoke exhaust system 2 includes an upper smoke exhaust duct 21, an upper exhaust device 22 and a main smoke exhaust path, wherein one end of the upper smoke exhaust duct 21 is connected to the range hood 1, the other end is communicated with the main smoke exhaust path, and the main smoke exhaust path is communicated with the outdoor.

As shown in FIG. 2, the lower exhaust system 3 comprises a lower exhaust device 31 and a lower exhaust pipe 32, wherein the lower exhaust device 31 is a lower exhaust fan with an exhaust volume of 50m³And/h, the lower smoke exhaust pipeline 32 can be installed indoors or outdoors, is installed in the cabinet of the kitchen sink and is positioned at the bottom of the indoor wall.

As shown in FIG. 3, the amount of air supplied by the air supply device 4 was fixed to 550m³The utility model discloses a novel filter, it is including first effect filter section 6 and residual pressure valve 42, has seted up air supply opening 41 on the indoor wall, and residual pressure valve 42 is installed in air supply opening 41, and first effect filter section 6 is installed on residual pressure valve 42 towards indoor one side lateral wall.

The range hood 1 adopted in the embodiment is a high-voltage electrostatic range hood, the upper exhaust device 22 is an upper induced draft fan, and the exhaust volume of the upper exhaust device 22 is fixed to 450m³And h, the total smoke exhaust path is a brick public flue. The upper induced draft fan can be installed in the range hood 1 or the upper exhaust duct 21, preferably in the upper exhaust duct 21, and the installation mode can reduce noise pollution caused by normal operation of the range hood 1. The residual pressure valve 42 can be cleaned by the seaManufactured by decontamination technology, inc.

According to the standard of indoor oil smoke concentration, the critical value of an oil smoke concentration detection sensor 5 is preset, a lower exhaust device 31 and an upper exhaust device 22 are started synchronously, indoor large smoke particles fall under the action of self weight and are finally exhausted out of a room through a lower exhaust pipeline 32, and other oil smoke is driven by the upper exhaust device 22, sequentially passes through a range hood 1 and an upper exhaust pipeline 21, enters a main exhaust path and is finally exhausted to the atmosphere. The lower air exhausting device 31 is electrically connected with the oil smoke concentration detection sensor 5, and when the indoor oil smoke concentration reaches a critical value, the lower air exhausting device 31 is closed again. CO is also arranged indoors₂A concentration detection sensor 10, which is also electrically connected to the lower exhaust device 31 when CO is present₂When the critical value set by the concentration detection sensor 10 is lower than the oil smoke concentration detection sensor 5, the lower exhaust device 31 still continues to exhaust air, and can form an indoor ventilation system together with the air supplement device 4.

Because the fresh air volume that the backpressure valve 42 supplyed is greater than the volume of airing exhaust of last draught fan and bottom exhaust fan all the time, so make the interior atmospheric pressure of kitchen all the time slightly be greater than the atmospheric pressure in the public flue, the oil smoke alright discharge easily by the influence of pressure differential to need not to discharge the oil smoke because of public flue exhaust load is too big again, and adopt the power that increases lampblack absorber 1 to discharge the oil smoke, practiced thrift the energy consumption, also difficult oil smoke of public flue is irritated and is scurried the flavor phenomenon. In order to primarily purify the gas exhausted from the upper smoke exhaust pipe and the lower smoke exhaust pipe, a primary filter section 6 (not shown) is also provided in the upper smoke exhaust pipe and the lower smoke exhaust pipe.

Example 2: a kitchen fume processing and discharging system, as shown in figure 4, is different from embodiment 1 in that the air supplement device 4 is still a residual pressure valve 42, the upper exhaust device 22 is a main exhaust machine, the total exhaust path adopts a spliced stainless steel or galvanized upright pipeline 23, and the upright pipeline 23 can be arranged indoors or outdoors, preferably outdoors, and compared with a brick public flue, the pipeline has a smoother surface and smaller smoke flowing resistance. The air exhaust main machine can be arranged on the roof, so that the indoor space is saved, the installation and the maintenance are facilitated, and meanwhile, the noise can be further reduced. The main exhaust fan is communicated with the main exhaust path through a connecting pipeline 231, and the top of the main exhaust path is provided with a rain-proof cap 233.

As shown in fig. 5, a coarse filter screen layer 9, an electrostatic adsorption device 8 and a UV photolysis device 7 are arranged in the exhaust main machine, and the oil smoke is treated by the three in sequence and then discharged into the atmosphere through a pipeline on the exhaust main machine. The coarse filter screen layer 9 filters the oil smoke and adsorbs oil gas particles; the electrostatic adsorption device 8 adopts an electrostatic oil fume purifier, and the fume is ionized and decomposed under the action of a high-voltage electric field; the UV photolysis device 7 comprises a UV photolysis lamp, an ion ozone generator and a titanium dioxide photocatalyst, smoke enters the UV photolysis device 7 to be subjected to photolysis purification, UV ultraviolet light beams are used for irradiating the pungent smoke to crack the smoke, the pungent smoke is degraded and converted into low molecular compounds, water and carbon dioxide, oxygen molecules in the air are decomposed to generate ozone, and toxic ingredients and peculiar smell in the smoke are decomposed and removed.

As shown in fig. 4, a service valve 232 is provided in the connection pipe 231, and the service valve 232 is electrically connected to the exhaust main unit. When the exhaust main machine encounters the condition that the exhaust main machine is shut down due to faults or long-term use and needs to clean the interior of the exhaust main machine, the maintenance valve 232 is closed, and smoke is discharged outwards from the main smoke exhaust path temporarily.

Example 3: a kitchen oil fume treatment and discharge system is shown in figure 6 and is different from that of embodiment 2 in that an upper air exhaust device 22 is still an air exhaust host, an air supplement device 4 comprises an induced draft fan 43, an air supplement pipeline 44 and an air outlet 45, the induced draft fan 43 is installed at an air supplement port 41, the air outlet 45 is located indoors, one end of the air supplement pipeline 44 is communicated with the induced draft fan 43, the other end of the air supplement pipeline is communicated with the air outlet 45, an air curtain (not shown in the figure) is installed at the air outlet 45, and a primary effect filtering section 6 is arranged in the air supplement pipeline 44. The induced draft fan 43 is started to make air supplement with a fixed air quantity, and blows downwards from the air outlet 45, so that the micro positive pressure is always kept indoors compared with outdoors.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a discharge system is handled to kitchen oil smoke, is including installing in indoor lampblack absorber (1), its characterized in that: the range hood comprises an upper smoke exhaust system (2) and a lower smoke exhaust system (3), wherein the upper smoke exhaust system (2) comprises an upper smoke exhaust pipeline (21), an upper exhaust device (22) and a main smoke exhaust path, one end of the upper smoke exhaust pipeline (21) is connected with the range hood (1), the other end of the upper smoke exhaust pipeline is communicated with the main smoke exhaust path through the upper exhaust device (22), and the main smoke exhaust path is communicated with the outside;

the lower smoke exhaust system (3) comprises a lower exhaust device (31) and a lower smoke exhaust pipeline (32), wherein the lower smoke exhaust pipeline (32) is arranged at the bottom of an indoor wall and is communicated with the outdoor space through the lower exhaust device (31);

the smoke exhaust system is characterized by further comprising an air supplementing device (4), an air supplementing opening (41) is formed in the indoor wall, and the indoor air pressure is greater than the air pressure in the total smoke exhaust path after air is supplemented from the air supplementing opening (41) through the air supplementing device (4).

2. The cooking oil fume processing and exhausting system of claim 1, wherein: the device is characterized by further comprising an indoor lampblack concentration detection sensor (5), the lower exhaust device (31) and the upper exhaust device (22) are started synchronously, and the lower exhaust device (31) is electrically connected with the lampblack concentration detection sensor (5).

3. The cooking oil fume processing and exhausting system of claim 1, wherein: and primary filtering sections (6) are arranged in the air supply opening (41), the upper smoke exhaust pipeline (21) and the lower smoke exhaust pipeline (32).

4. The cooking oil fume processing and exhausting system of claim 1, wherein: the air supplementing device (4) comprises a residual pressure valve (42) arranged at an air supplementing opening (41).

5. The cooking oil fume processing and exhausting system of claim 1, wherein: mend wind device (4) including draught fan (43), indoor air outlet (45) that are equipped with, draught fan (43) are installed in mend wind mouth (41) department, the intercommunication is provided with exhaust duct (44) between draught fan (43) and air outlet (45).

6. The cooking oil fume processing and exhausting system of claim 1, wherein: the upper exhaust device (22) comprises an upper exhaust fan, and the upper exhaust fan is installed in the range hood (1) or in the upper exhaust pipeline (21).

7. The cooking oil fume processing and exhausting system of claim 1, wherein: the upper exhaust device (22) comprises an exhaust main machine located outdoors, the total smoke exhaust path comprises an upright pipeline (23) arranged indoors or outdoors, and a connecting pipeline (231) is communicated between the exhaust main machine and the upright pipeline (23).

8. The cooking oil fume processing and exhausting system of claim 7, wherein: and a maintenance valve (232) is arranged in the connecting pipeline (231), and the maintenance valve (232) is electrically connected with the exhaust main machine.

9. The cooking oil fume processing and exhausting system of claim 7, wherein: a coarse filter screen layer (9), an electrostatic adsorption device (8) and a UV photolysis device (7) are arranged in the exhaust main machine.

10. The cooking oil fume processing and exhausting system of claim 1, wherein: further comprises a CO installed indoors₂A concentration detection sensor (10).