CN112628821A - Centralized kitchen smoke discharging and air supplementing system suitable for low-energy-consumption building - Google Patents

Centralized kitchen smoke discharging and air supplementing system suitable for low-energy-consumption building Download PDF

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Publication number
CN112628821A
CN112628821A CN202011548406.5A CN202011548406A CN112628821A CN 112628821 A CN112628821 A CN 112628821A CN 202011548406 A CN202011548406 A CN 202011548406A CN 112628821 A CN112628821 A CN 112628821A
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CN
China
Prior art keywords
air supply
air
kitchen
smoke
public
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CN202011548406.5A
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Chinese (zh)
Inventor
董建锴
姜益强
王诗琪
徐先港
马圣原
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Harbin Institute of Technology
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Harbin Institute of Technology
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Priority to CN202011548406.5A priority Critical patent/CN112628821A/en
Publication of CN112628821A publication Critical patent/CN112628821A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes
    • F24C15/2035Arrangement or mounting of filters
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00Vertical ducts; Channels, e.g. for drainage
    • E04F17/02Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/04Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/065Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct

Abstract

The invention provides a centralized kitchen smoke exhaust and air supplement system suitable for a low-energy-consumption building, which comprises a smoke exhaust system and an air supply system, wherein oil smoke sucked by a range hood is exhausted into a public discharge flue through a smoke exhaust branch pipe; the common air supply channel and the common exhaust channel of the air supply system are mutually isolated, the common exhaust channel surrounds the common air supply channel, one end of a kitchen fresh air inlet of each floor is connected with the common air supply channel, the other end of the kitchen fresh air inlet of each floor is connected with an internal kitchen air supply device of the floor, two ends of an air supply branch pipe of the internal kitchen air supply device are respectively communicated with the fresh air inlet of each floor and an air supply pressure equalizing cavity, so that the fresh air is introduced from a fresh air main inlet, and outdoor air heated by exhaust smoke and staircases is delivered to a cooking bench. The invention solves the technical problem of insufficient kitchen smoke exhaust and air supplement system in the prior art, and aims at the kitchens of high-rise or multi-rise low-energy-consumption residential buildings in cold and severe cold areas to realize air supplement for the kitchens of each floor of users in a centralized air supply mode in winter.

Description

Centralized kitchen smoke discharging and air supplementing system suitable for low-energy-consumption building
Technical Field
The invention relates to a centralized kitchen smoke exhaust and air supplement system suitable for a low-energy-consumption building, and belongs to the technical field of kitchen smoke exhaust systems.
Background
The aim of developing a low-energy-consumption building is to create a comfortable and healthy living environment, save the use, efficiently utilize natural resources and energy, reduce the daily energy expenditure and reduce the operation cost.
The low energy consumption building aims at reducing the energy consumption of the building and reducing the cold and heat dissipated by the building through the gap of the enclosure structure, the air tightness of the low energy consumption building is increasingly improved, and natural air supplement can not be carried out in certain residential kitchens, particularly residential kitchens of high-rise or multi-story buildings in a normal window opening mode, so that the problem of insufficient fresh air volume exists in the residential kitchens. Under the condition that the door and the window are tightly closed, the obvious vacuumizing phenomenon can occur, indoor negative pressure is caused, in order to supplement air for a kitchen, air flows in other rooms flow to the kitchen, the problems of water seal failure of the kitchen and the toilet, odor return of a floor drain and the like are easily caused, and peculiar smell returns to the indoor environment to pollute the indoor environment. And the traditional range hood and the smoke exhaust and air supplement system can not simultaneously meet the requirements of direct smoke exhaust and air supplement of the kitchen on the premise of ensuring air tightness and reducing heat loss, so that an air supplement system suitable for the kitchen of a low-energy-consumption residence needs to be explored.
When cooking, the range hood is opened, the wind wheel rotates at high speed to generate large air volume, so that a negative pressure area is formed in a certain space range above the stove, and indoor oil fume is sucked into the range hood. At this time, if the outer window or the kitchen door is not opened to introduce fresh air into the kitchen, a large amount of summer air-conditioning cold air or winter heating hot air in rooms such as a living room adjacent to the kitchen flows into the kitchen. Even if the kitchen door is closed, air can also flow into the door gap and is discharged through the range hood, so that energy is wasted, and the air conditioning effect of adjacent rooms such as a living room is influenced.
The existing kitchen air supplement mode is mainly that each user independently sets up the air supplement device, generally divide into natural air supplement and machinery air supplement. The natural air supply is to open the door and window to make the air outside or in the adjacent room flow into the kitchen. If the outer window is opened and the door of the kitchen is closed, a large amount of untreated outdoor air flows into the kitchen disorderly, the generated lateral air flow affects the working performance of the burner and the fume exhaust effect of the range hood, and air with a temperature close to the outdoor temperature causes hot summer (for example, about 35 ℃ outdoor air flows into the kitchen in summer in southern areas) and cold winter (for example, about-15 ℃ outdoor air flows into the kitchen in winter) in the kitchen, thereby seriously affecting the thermal environment of the kitchen and the thermal comfort of cookers. In areas with serious air pollution, it is also necessary to prevent the heavily polluted outdoor air from flowing into the room to affect the health of the cookers or pollute the dishes. The mechanical air supplement mode is provided with a special fresh air fan for supplementing air for kitchen oil smoke discharge, but the mode has the problems of high energy consumption, disordered air flow organization distribution, incapability of processing fresh air according to needs according to indoor and outdoor air parameters, low controllable degree, low intelligent degree and the like.
Disclosure of Invention
The invention aims to solve the technical problem of the deficiency of the kitchen smoke exhaust and air supplement system in the prior art in the background art, and provides a centralized kitchen smoke exhaust and air supplement system which utilizes the heat in the kitchen cooking smoke exhaust to heat the fresh air in the public air supply duct in winter and supplements the air to the kitchen.
The invention provides a centralized kitchen smoke exhaust and air supplement system suitable for a low-energy-consumption building, which comprises a smoke exhaust system and an air supply system, wherein the smoke exhaust system comprises a public discharge flue and a plurality of kitchen smoke exhaust branch pipes communicated with the public discharge flue, and oil smoke sucked by a range hood is discharged into the public discharge flue through the smoke exhaust branch pipes;
the air supply system comprises a common air supply duct arranged in a common exhaust duct, a fresh air inlet positioned at the bottom end of the common air supply duct, kitchen fresh air inlets on respective floors and a plurality of kitchen fresh air supply devices, the common air supply duct and the common exhaust duct are mutually isolated, the common exhaust duct surrounds the common air supply duct, one end of each kitchen fresh air inlet on each floor is connected with the common air supply duct, the other end of each kitchen fresh air inlet is respectively connected with the kitchen fresh air supply device on the floor,
the kitchen interior air supply device comprises an air supply branch pipe, an air supply fan arranged in the air supply branch pipe, an air supply pressure equalizing cavity and a strip seam type air supply opening which is arranged around a gas stove and connected with the air supply pressure equalizing cavity, wherein two ends of the air supply branch pipe are respectively communicated with a fresh air inlet and the air supply pressure equalizing cavity of each floor so as to be introduced from a fresh air main inlet, and outdoor air heated by smoke exhaust and staircase is supplied to a cooking bench.
Preferably, the outer wall of the common air supply duct is provided with heat exchange fins, so that the heat exchange effect between the common air supply duct and the common discharge duct is enhanced.
Preferably, the heat exchange fins are vertically arranged along the smoke discharge direction of the common smoke discharge flue.
Preferably, four slit-type air supply outlets are arranged around the gas stove of the cooking bench.
Preferably, when the negative pressure is large enough, the air supply fan is closed, the fresh air reaches the slit type air supply outlet through the air supply branch pipe, and when the negative pressure is insufficient, the air supply fan is opened to provide power for conveying the fresh air, so that the fresh air can effectively reach the kitchen.
Preferably, the air supply fan is controlled by a valve beside the air supply fan, the opening and closing of the valve in the air supply branch pipe are controlled by signals provided by a smoke sensor and a temperature sensor in a kitchen in the cooking process, the valve in the air supply branch pipe is opened before the cooking activity starts, the fresh air reaches the strip seam type air supply outlet through each fresh air supply device, and after the smoke is removed after the cooking activity is finished, the valve in the air supply branch pipe is closed, and the fresh air is not introduced into the kitchen any more.
Preferably, the strip-seam type air supply outlet is integrally made of a fire-resistant high-temperature-resistant non-combustible material.
Preferably, crisscross the polylith buffer plate that sets up on the branch inside wall of discharging fume, the buffer plate will be arranged the intraductal S type runner that falls into of cigarette, the buffer plate makes the oil smoke reduce through the speed on buffer layer, and partial oil smoke adheres to and forms oil droplet on buffer plate surface, and follow-up accessible cleaning device will drip oil and collect, avoids its flow direction public discharge flue to cause the pollution.
Preferably, the whole smoke inlet direction of the plurality of slow flow plates is provided with a smoke exhaust filter plate which adsorbs and filters the oil smoke treated by the slow flow plates, so that the oil smoke exhausted from the smoke exhaust branch pipes is better in purifying effect, and the influence of the oil smoke on a public smoke exhaust channel, heat exchange fins and the external environment is reduced.
Preferably, set up the air supply filter in the air supply branch pipe, the air supply filter is used for getting into the new trend from the new trend entry of each floor and filters, filters the great particulate matter of particle diameter in the new trend, guarantees to carry comparatively clean the air in the kitchen, avoids causing new trend air supply arrangement to block up and leads to air supply effect to descend and the impurity of external environment enters into the kitchen after long-term the use and pollutes the kitchen environment and influence culinary art person's culinary art and experience.
Compared with the traditional kitchen air supplement system, the centralized kitchen smoke exhaust and air supplement system suitable for the low-energy-consumption building has the following obvious advantages:
1. the system considers the problem of insufficient ventilation caused by the improvement of the air tightness of the existing building, and aims at the kitchen of a high-rise or multi-rise low-energy-consumption residential building in a cold and severe cold area, a public air supply duct is additionally arranged in a public exhaust duct, and heat in exhausted smoke is utilized to heat fresh air in winter, so that the energy utilization rate of the system is improved.
2. This system adopts the mode of concentrating the air supply, does not directly introduce the lower new trend of temperature from the window outward, but introduces the new trend to every layer of kitchen through public supply air duct to send into each user with the new trend through public supply air duct, convenient management practices thrift the energy consumption.
3. The system considers the problem of low outdoor air temperature in winter, heats the air supply by utilizing the heat of the discharged smoke, effectively improves the thermal environment of the kitchen in winter, realizes the reutilization of the waste heat of the discharged smoke, and improves the energy utilization rate.
4. The system reduces the temperature of the discharged smoke through heat exchange of the discharged smoke and the air supply, and eliminates ignition hidden troubles and environmental pollution caused by overhigh temperature of the discharged smoke to a certain extent.
5. The system arranges the public air supply duct inside the public exhaust duct, and the public exhaust duct surrounds the public air supply duct, so that the smoke exhausted from the public exhaust duct can heat the fresh air in the public air supply duct after heat exchange, and the strip-seam type air supply outlet can supply the fresh air with proper temperature, thereby solving the problem of overlarge negative pressure of a kitchen and reducing energy waste and environmental pollution caused by air exhaust, and being particularly suitable for being applied to winter occasions in severe cold and cold areas.
6. The system can heat the supplied air in the stairwell, makes full use of the characteristics of the building, and reduces the energy consumption caused by preheating the fresh air.
7. The system considers the organization problem of air supply, supplies air into the kitchen through the strip-seam type air supply outlet, effectively improves the organization of air supply, and improves the reliability and stability of the system.
8. The system utilizes a same-course system consisting of the public air supply duct, the kitchen and the public flue, and effectively solves the problems of unbalanced and unsmooth kitchen smoke discharge of high-rise or multi-rise residential buildings.
9. The system changes the unorganized air supply of the kitchen into organized air supply, can solve the problems of energy consumption and heat discomfort caused by unorganized air leakage, improves the adverse effect of unorganized air leakage on the working performance of the combustor and the range hood, improves the thermal efficiency of the combustor and the collecting efficiency of the range hood, and improves the oil smoke separation efficiency. In addition, fresh air can be delivered to a breathing area of a person in the cooking process, so that negative pressure air inlet and fixed-point distribution in a kitchen are realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a partial schematic view of a centralized kitchen smoke exhausting and air supplementing system suitable for low-energy-consumption buildings according to the present invention;
FIG. 2 is a partial top view of a centralized kitchen smoke exhausting and air supplementing system suitable for low energy consumption buildings according to the present invention;
FIG. 3 is a schematic view of the structure of the public smoke delivery and discharge flue according to the present invention;
FIG. 4 is a schematic view of the structure of the air supply pressure equalizing chamber according to the present invention;
FIG. 5 is a general schematic view of a centralized kitchen smoke exhausting and air supplementing system suitable for low energy consumption buildings according to the present invention;
wherein, 1-public discharge flue; 2-a public air supply duct; 3-smoke exhaust branch pipes; 4-a buffer plate; 5-a smoke exhaust filter plate; 6-smoke exhaust ventilator; 7-gas range; 8-a cooking bench; 9-air supply pressure equalizing cavity; 10-air supply fan; 11-a blowing filter plate; 12-a valve; 13-air supply branch pipe; 14-fresh air inlets of all floors; 15-slit type air supply outlet; 16-heat exchange fins; 17-unpowered hood; 18-fresh air main inlet.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
the first embodiment is as follows: the present embodiment is explained with reference to fig. 1 to 5. The centralized kitchen smoke exhaust and air supplement system suitable for the low-energy-consumption building comprises a smoke exhaust system and an air supply system, wherein the smoke exhaust system comprises a public discharge flue 1 and a plurality of kitchen smoke exhaust branch pipes 3 communicated with the public discharge flue 1, and oil smoke sucked by a range hood 6 is discharged into the public discharge flue 1 through the smoke exhaust branch pipes 3; the air supply system comprises a common air supply duct 2 arranged in a common exhaust duct 1, a fresh air inlet 18 positioned at the bottom end of the common air supply duct 2, fresh air inlets 14 in kitchens on respective floors and a plurality of fresh air supply devices in kitchens, wherein the common air supply duct 2 and the common exhaust duct 1 are mutually isolated, the common exhaust duct 1 surrounds the common air supply duct 2, one end of each fresh air inlet 14 in kitchens on the respective floors is connected with the common air supply duct 2, the other end of each fresh air inlet 14 in kitchens is respectively connected with the air supply device in kitchens on the floor, each air supply device in kitchens comprises an air supply branch pipe 13, an air supply fan 10 arranged in the air supply branch pipe, an air supply pressure equalizing cavity 9 and a strip seam type air supply outlet 15 arranged around a gas stove 7 and connected with the air supply pressure equalizing cavity 9, and two ends of each air supply branch pipe 13 are, so as to send the outdoor air, which is introduced from the fresh air inlet 18 and is heated by the smoke exhaust and the staircase, to the cooking top 8.
The invention relates to a centralized kitchen smoke exhaust and air supplement system suitable for a low-energy-consumption building, which mainly comprises a smoke exhaust system and an air supply system, wherein the smoke exhaust system comprises a public discharge flue 1, a plurality of kitchen smoke exhaust branch pipes 3 communicated with the public discharge flue, smoke exhaust ventilators 6 communicated with the smoke exhaust branch pipes 3 on respective floors, and a smoke exhaust filter plate 5 and a plurality of flow buffering plates 4 are also arranged in the smoke exhaust branch pipes 13. The air supply system part comprises a public air supply duct 2 arranged inside a public discharge duct, a fresh air inlet 18 positioned at the bottom end of the public air supply duct, a kitchen fresh air inlet 14 on each floor and a plurality of kitchen fresh air supply devices.
The fresh air main inlet 18 is connected with the public air supply duct 2 and used for introducing outdoor fresh air, the number of the kitchen fresh air inlets 14 on each floor is set corresponding to the number of the plurality of kitchen smoke exhaust branch pipes, one end of each kitchen fresh air inlet on each floor is connected with the public air supply duct 2, and the other end of each kitchen fresh air inlet is connected with the kitchen internal air supply device on the floor where the kitchen fresh air inlet is located.
Inside air supply arrangement in kitchen includes: air supply branch pipe 13, set up small-size air supply fan 10 in the air supply branch pipe, set up air supply filter 11 in the air supply branch pipe, set up valve 12 in the air supply branch pipe, the air supply pressure equalizing chamber 9 that links to each other with the air supply branch pipe, set up around the gas-cooker and the strip seam type supply-air outlet 15 that links to each other with the air supply pressure equalizing chamber, lead the new trend to kitchen range air supply opening department by the new trend air intake 14 of place floor, carry out organized air supply in to the kitchen.
A public air supply duct 2 for supplying air to kitchens on each floor in a centralized manner is arranged in the public exhaust flue 1, the public air supply duct 2 and the public exhaust flue 1 are isolated from each other, the public exhaust flue 1 surrounds the public air supply duct 2, and heat can be transferred between the public exhaust flue 1 and the public exhaust flue 2.
In order to improve the heat exchange effect, the outer wall of the public air supply duct is uniformly provided with heat exchange fins 16, so that the heat exchange effect between the public air supply duct 2 and the public exhaust duct 1 is enhanced, and the heat exchange fins 16 are vertically arranged along the smoke exhaust direction.
In order to stably supply air at a relatively constant speed to the kitchen, an air supply pressure equalizing cavity 9 is arranged below the kitchen cooking bench. The air inlet of the air supply pressure equalizing cavity 9 is communicated with an air supply branch pipe 13, and the air outlet of the air supply pressure equalizing cavity 13 is communicated with a strip seam type air supply outlet 15.
In order to smoothly discharge air from the slit-shaped air supply opening 15, an air supply fan 10 for supplying power for air supply is arranged on an air supply branch pipe 13 between an air inlet of the air supply pressure equalizing cavity 9 and a fresh air inlet 14 of each floor. When the negative pressure is large enough, the air supply fan 10 is closed, and the fresh air reaches the slit air supply opening 15 through the fresh air supply device. When the negative pressure is insufficient, the air supply fan 10 is started to provide power for conveying fresh air, so that fresh air can effectively reach the kitchen. In general, in the cooking process, in order to maintain the indoor environment effect, the air supply fan 10 is kept in an open state, so that fresh air can effectively reach the slit-type air supply outlet 15 through the fresh air inlets 14 of the floors and the fresh air supply devices. The air exhaust device can effectively solve the phenomenon of unbalanced air exhaust of high-rise and multi-rise buildings, enables the air exhaust of different floors to be balanced, and has the functions of purifying indoor environment, blocking oil smoke diffusion, secondarily utilizing waste heat and the like.
The fresh air inlet 18 of the public air supply duct 2 is communicated with the outside, and fresh air inlets 14 of all floors communicated with the public air supply duct 2 are arranged in all layers of kitchens. Two ends of the air supply branch pipe 13 are respectively communicated with a fresh air inlet 14 and an air supply uniform cavity 9 of each floor, so that outdoor air which is introduced from a fresh air main inlet 18 and is subjected to smoke exhaust heating and staircase heating is supplied to the cooking bench 8. Four slit-shaped air supply ports 15 are arranged around the gas stove 7.
For the cooking process, the opening and closing of the valve 12 in the supply branch is controlled by signals provided by smoke sensors and temperature sensors in the kitchen. Before the cooking activity begins, the valve 12 in the air supply branch pipe 13 is opened, and fresh air reaches the slit-shaped air supply outlet 15 through each fresh air supply device. Within a period of time after the cooking activity is over, the valve 12 in the supply branch is closed and fresh air will not be introduced into the kitchen.
When the system works, oil smoke sucked by the range hood 6 is discharged into the public discharge flue 1 through the smoke exhaust branch pipe 3, external fresh air enters the air supply branch pipe 13 through the public air supply flue 2, and then is supplied to the slit type air supply outlet 15 through the air supply pressure equalizing cavity 9 under the action of the air supply fan 10, and in the air supply process, smoke in the public discharge flue 1 and the fresh air in the public air supply flue 2 exchange heat with each other, so that the problem of overlarge negative pressure in a kitchen is solved, and meanwhile, energy waste and environmental pollution caused by smoke exhaust are reduced.
Crisscross setting up polylith unhurried flow board 4 on 3 inside walls of branch pipes of discharging fume, unhurried flow board 4 will arrange the intraductal S type runner that falls into of cigarette, unhurried flow board 4 makes the oil smoke reduce through the speed on unhurried flow layer, and partial oil smoke is attached to 4 surface formation oil drops of unhurried flow board, and follow-up accessible device will drip oil and collect, avoids its flow direction public discharge flue 1 to cause the pollution.
The smoke exhaust filtering plate 5 can adsorb and filter the oil smoke treated by the slow flow plate 4, so that the oil smoke exhausted from the smoke exhaust branch pipe 3 has a better purification effect, and the influence of the oil smoke on the public smoke exhaust channel 1, the heat exchange fins 16 and the external environment is reduced.
Set up air supply filter 11 in the air supply branch pipe 13, air supply filter 11 is used for getting into the new trend from the new trend entry 14 of each floor and filters, filters the great particulate matter of particle diameter in the new trend, guarantees to carry comparatively clean to the air in the kitchen, avoids causing new trend air supply arrangement to block up and leads to air supply effect to descend and the impurity of outer environment enters into the kitchen after long-term the use and pollutes the kitchen environment and influence culinary art person's culinary art and experience.
In the use of this system of discharging fume of concentrating air supply, at first guarantee the interior lampblack absorber 6 normal operating of kitchen, the door and window in kitchen keeps airtight state as far as possible simultaneously for keep high negative pressure state in the kitchen. In this state, when a sufficiently large negative pressure is reached, the outdoor fresh air is delivered into the kitchen in an organized manner through the slit-shaped air delivery ports 15 by the negative pressure. On one hand, air curtain is formed between human body and oil smoke in the air supply, the oil smoke is prevented from entering a breathing area of a person and diffusing in a kitchen, and on the other hand, the air outlet effect of the strip-seam type air supply opening 15 is enhanced by the suction effect of the range hood 7.
The part of the air supply branch pipe 13 before entering the house is positioned in the staircase, the temperature of the staircase is higher than that of the outside in winter, and the heat in the staircase can be used for heating the fresh air in the pipe. The air supply branch pipe 13 should pass through an outer wall which is nearest to the cooking bench and convenient to construct. During installation, the length of the pipe should be minimized to reduce resistance. During decoration, four air ports are reserved around the gas stove 7 of the cooking bench 8 and used for installing the strip seam type air supply opening 15, and the size of the strip seam type air supply opening 15 needs to be set according to the actual size of the strip seam type air supply opening 15.
The strip slit type air supply opening 15 is positioned around the gas stove 7 and is close to the gas stove 7, so that the strip slit type air supply opening 15 is relatively high in temperature and easy to directly contact with open fire when cooking is carried out, and is integrally made of fireproof high-temperature-resistant non-combustible materials.
The kitchen air supply inlet is positioned on the outer wall which is closest to the cooking bench and convenient to construct, so that the resistance of the air supply device is minimum.
The invention aims to provide a centralized kitchen smoke exhaust and air supplement system, aiming at kitchens of high-rise or multi-story low-energy-consumption residential buildings in cold and severe cold areas, a public air supply duct is additionally arranged in a public exhaust duct, and heat in smoke exhaust is used for heating fresh air in winter, so that the energy utilization rate of the system is improved. Fresh air with organization and proper temperature is sent into each layer of kitchen in a centralized air supply mode. Go up the air supply through strip seam type supply-air outlet, form the air curtain between cooking oil smoke diffusion district and culinary art person's breathing zone, have certain isolation effect that blocks to the pollutant, can suitably prevent the pollutant to indoor diffusion to unorganized tonifying qi in the past has been improved and the produced adverse effect of combustor performance. The public air supply duct, the kitchen and the public exhaust duct form a same-way pipe network system. The air supply distance of the bottom-layer user is short, the smoke exhaust distance is long, the air supply distance of the top-layer user is long, the smoke exhaust distance is short, and therefore the problems of unbalanced smoke exhaust and unsmooth smoke exhaust can be solved.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention, and that the reasonable combination of the features described in the above-mentioned embodiments can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A centralized kitchen smoke exhaust and air supplement system suitable for a low-energy-consumption building is characterized by comprising a smoke exhaust system and an air supply system, wherein the smoke exhaust system comprises a public discharge flue (1) and a plurality of kitchen smoke exhaust branch pipes (3) communicated with the public discharge flue (1), and oil smoke sucked by a range hood (6) is discharged into the public discharge flue (1) through the smoke exhaust branch pipes (3);
the air supply system comprises a public air supply duct (2) arranged in a public exhaust flue (1), a fresh air inlet (18) positioned at the bottom end of the public air supply duct (2), fresh air inlets (14) of kitchens of respective floors and a plurality of fresh air supply devices in kitchens, wherein the public air supply duct (2) is mutually isolated from the public exhaust flue (1), the public exhaust flue (1) surrounds the public air supply duct (2), one end of each fresh air inlet (14) of each floor is connected with the public air supply duct (2), the other end of each fresh air inlet is respectively connected with the air supply device in the kitchen of the floor where the fresh air inlet is positioned,
inside air supply arrangement in kitchen includes air supply branch pipe (13), set up air supply fan (10) in the air supply branch pipe, air supply pressure equalizing chamber (9) and set up in around gas-cooker (7) and strip seam type supply-air outlet (15) that link to each other with air supply pressure equalizing chamber (9), fresh air intake (14) and air supply pressure equalizing chamber (9) of each floor of air supply branch pipe (13) both ends UNICOM respectively to introduce from fresh air total entrance (18), and pass through the heating of discharging fume, the outdoor air of staircase heating is delivered to top of a kitchen range (8) department.
2. A centralized kitchen smoke exhaust and air supplement system suitable for low energy consumption buildings according to claim 1 is characterized in that heat exchange fins (16) are arranged on the outer wall of the common air supply duct (2), so that the heat exchange effect between the common air supply duct (2) and the common air discharge duct (1) is enhanced.
3. A centralized kitchen smoke exhaust and air supplement system suitable for low energy consumption buildings according to claim 2 is characterized in that the heat exchange fins (16) are vertically arranged along the smoke exhaust direction of the public exhaust flue (1).
4. A centralized kitchen smoke exhaust and air supplement system suitable for low energy consumption buildings according to claim 1 is characterized in that four slit type air supply outlets (15) are arranged around the gas stove (7) of the cooking bench (8).
5. A centralized kitchen smoke exhaust and air supplement system suitable for low energy consumption buildings according to claim 1, characterized in that when the negative pressure is large enough, the air supply fan (10) is closed, the fresh air reaches the slotted air supply outlet (15) through the air supply branch pipe (13), and when the negative pressure is insufficient, the air supply fan (10) is opened to provide power for the delivery of the fresh air, so that the fresh air can effectively reach the kitchen.
6. A centralized kitchen smoke exhaust and air supplement system suitable for low energy consumption buildings according to claim 1, characterized in that the air supply blower (10) is controlled by a valve (12) beside it, the opening and closing of the valve (12) in the air supply branch pipe is controlled by the signals provided by the smoke sensor and the temperature sensor in the kitchen during the cooking process, the valve (12) in the air supply branch pipe (13) is opened before the cooking activity, the fresh air reaches the slotted air supply opening (15) through each fresh air supply device, and after the smoke is removed after the cooking activity, the valve (12) in the air supply branch pipe is closed, and the fresh air will not be introduced into the kitchen any more.
7. A centralized kitchen smoke exhaust and air supplement system suitable for low energy consumption buildings according to claim 1 is characterized in that the strip joint type air supply outlet (15) is integrally made of fire-resistant high temperature-resistant non-combustible materials.
8. The centralized kitchen smoke exhaust and air supplement system suitable for the low energy consumption building of claim 1, wherein a plurality of flow buffering plates (4) are arranged on the inner side wall of the smoke exhaust branch pipe (3) in a staggered mode, the flow buffering plates (4) divide the interior of the smoke exhaust branch pipe (3) into S-shaped flow channels, the flow buffering plates (4) reduce the speed of oil smoke passing through a flow buffering layer, part of the oil smoke is attached to the surfaces of the flow buffering plates (4) to form oil drops, and the oil drops can be collected by a cleaning device subsequently to avoid pollution caused by the oil smoke flowing to a public discharge flue (1).
9. A centralized kitchen smoke exhausting and air supplementing system suitable for low energy consumption buildings according to claim 8 is characterized in that the whole smoke inlet direction of the plurality of flow buffering plates (4) is provided with a smoke exhausting and filtering plate (5) which adsorbs and filters the oil smoke treated by the flow buffering plates (4), so that the oil smoke exhausted from the smoke exhausting branch pipes (3) is better purified, and the influence of the oil smoke on the public smoke exhaust flue (1), the heat exchanging fins (16) and the external environment is reduced.
10. The centralized kitchen smoke exhaust and air supplement system suitable for the low energy consumption building as recited in claim 1, wherein an air supply filter plate (11) is arranged in the air supply branch pipe (13), the air supply filter plate (11) is used for filtering fresh air entering from the fresh air inlet (14) of each floor, filtering particles with larger particle sizes in the fresh air, ensuring that air delivered to the kitchen is cleaner, and avoiding that the fresh air supply device is blocked after long-term use to cause air supply effect reduction and impurities in the external environment enter the kitchen to pollute the kitchen environment and influence the cooking experience of a cooker.
CN202011548406.5A 2020-12-24 2020-12-24 Centralized kitchen smoke discharging and air supplementing system suitable for low-energy-consumption building Pending CN112628821A (en)

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CN106500151A (en) * 2016-10-28 2017-03-15 沈阳建筑大学 Mend air control cigarette energy conserving system in a kind of residence building kitchen
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CN113834108A (en) * 2021-11-05 2021-12-24 吉林建筑大学 Device with heat recovery and high-efficient purification
CN113834108B (en) * 2021-11-05 2024-02-20 吉林建筑大学 Device with heat recovery and high-efficient purification

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