CN209782759U

CN209782759U - Non-fume cooking range

Info

Publication number: CN209782759U
Application number: CN201920282807.7U
Authority: CN
Inventors: 张跃虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2019-12-13
Anticipated expiration: 2029-03-06

Abstract

The utility model provides a kitchen range of no oil smoke is equipped with the petticoat pipe in restriction air intake cross-section in the top of the kitchen body top of a kitchen range, petticoat pipe side and back be equipped with the petticoat pipe lateral wall, the top is equipped with the petticoat pipe dome, openly is equipped with the air intake, the cross-section of air intake is set to: when the exhaust fan is started, the inner cavity space of the smoke hood is negative pressure compared with the atmospheric environment. Namely, the oxygen supply air always flows into the smoke hood from the atmospheric environment through the air inlet, and the oil smoke can only be discharged along the oil smoke outlet in the smoke hood, so that the oil smoke collection effect is ensured. The catering smoke outlet of the catering place in the former residential quarter can only be arranged on the top floor or underground water channel, and the kitchen range can be arranged after the utility model is adoptedThe actual measurement of the concentration of the oil fume inlet at the fume inlet of the furnace is 9.4 mg/m³During the process, the actual measurement of the fume emission concentration at the fume outlet of the stove is 0.3 mg/m³The oil fume collection rate is as high as 99.5%, and the purification rate is as high as 94.7% when the oil fume collection device is matched with a fire purification stove. The catering places can be arranged on any floor of a building, and neighbors cannot be influenced by oil smoke emission.

Description

Non-fume cooking range

Technical Field

The utility model relates to a domestic or commercial kitchen range field, especially a kitchen range that can realize indoor and discharge all no oil smoke.

Background

Recently, the public is very disgusting of the oil smoke generated from catering stoves, and the emission of the oil smoke generated from domestic or commercial stoves in homes or communities is a hot spot causing complaints. And the range hood adopted indoors usually cannot meet the requirements of users.

The existing common range hood has the following structures. 1. A range hood of the top-extraction type, for example, a range hood described in chinese patent document CN1246641C, employs a single upper cover, and a fan is provided in the upper cover, and oil smoke is collected by the cover and discharged from the fan. However, although the prior art has made various improvements to the upper-suction type, the oil smoke extraction effect is still not ideal. 2. A method of manufacturing a down-draft type range hood and a down-draft type range hood, for example, described in chinese patent document CN 101329080A. The scheme can well absorb the oil smoke floating along the edge of the pot, but the oil smoke generated in the middle of the pot has almost no extraction effect, so the effect is not ideal.

There is also a technology of circulating the collected oil smoke in the prior art, which can introduce the collected oil smoke into the combustion chamber for secondary combustion, and process the oil smoke through high temperature ablation, so as to obtain better technical effects, for example, chinese patent document CN105864831A is a solution for solving the above technical problems from an oil smoke benefit processing stove and a processing method thereof. Utilize the wind-force of oil pumping cigarette, make the oil smoke gas that carries carry out fully preheating and high temperature reheating after centrifugal filtration, will remain the condensation oil smoke gasification on the pipeline wall before, get into the combustor with the oil smoke that inhales and burn the decomposition together, the waste gas after the burning carries the heat to reheat and preheat the oil smoke gas that follow-up entering, discharge from the exhaust port of keeping away from the furnace mouth at last, discharged waste gas does not contain the oil smoke composition basically after burning the decomposition, the high quality abundant burning and the heat utilization of oil smoke have been realized. However, the scheme depends on the oil smoke collection effect, and if the oil smoke collection rate is high, the collected oil smoke participates in secondary combustion, and less oil smoke is dissipated indoors, the energy-saving effect and the emission reduction effect of the scheme are better. And the prior art does not have a perfect oil fume collecting scheme. The scheme also has the following defects: the flue gas discharged after being combusted in the combustion chamber has higher temperature, and is easy to scald an operator if the operation is careless, and the recovered flue gas is easy to condense on the inner wall of the flue after contacting with the colder room temperature because of containing a large amount of grease, so that the flue is blocked and the energy waste is caused. Moreover, the two technical problems conflict with each other, and the requirements are difficult to meet simultaneously.

SUMMERY OF THE UTILITY MODEL

the utility model aims to solve the technical problem that a no oil smoke kitchen range is provided, the produced oil smoke of culinary art can almost all be collected, make the oil smoke can not be to indoor loss. In preferred scheme, can make the oil smoke of collection by the postcombustion, the flue gas through high temperature ablation is little at discharge process oil smoke content, and can avoid the danger that the user appears scalding, through the heat transfer, makes the oil smoke of collection can not condense at the inner wall of flue. The operator's operation passage can be avoided.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a no oil smoke kitchen range, is equipped with the petticoat pipe of restriction air intake cross-section in the top of kitchen body top of a kitchen range, petticoat pipe side and back be equipped with the petticoat pipe lateral wall, openly be equipped with the air intake, the cross-section of air intake is set into: when the exhaust fan is started, the inner cavity space of the smoke hood is negative pressure compared with the atmospheric environment.

In a preferred scheme, a smoke hood dome is arranged at the top of the smoke hood.

In a preferred scheme, the hood dome is an arc top, a parabolic top, a hyperbolic top or a similar arc top, parabolic top or hyperbolic top formed by other curved surface shapes.

In a preferable scheme, the overlooking cross section of the side wall of the smoke hood is an arc-shaped surface or a curved surface similar to a circle.

in the preferable scheme, the distance between the side wall of the smoke hood and the stove body is 0 ~ 40 cm.

in the preferred scheme, the distance between the side wall of the smoke hood and the stove body table top of the stove body is 0 ~ 40 cm;

or the distance from the inner side of the bottom of the side wall of the smoke hood to the edge of the stove body is 0 ~ 40 cm.

In the preferred scheme, a smoke hood dome is arranged at the top of the smoke hood, the position, close to the top, of the smoke hood dome is connected with an air inlet of an exhaust fan, an air outlet of the exhaust fan is connected with an oil smoke channel, the oil smoke channel is connected with an air inlet chamber, the air inlet chamber is connected with a mixing chamber through a porous net, a gas pipe is connected with the mixing chamber, a combustion chamber is arranged at the upper part of the mixing chamber, the combustion chamber is connected with a fire channel, and the fire channel is connected with a chimney;

The air inlet chamber, the mixing chamber and the combustion chamber are all positioned in the stove body.

In the preferred scheme, a fire smoke guide plate is arranged above the combustion chamber and below the pot, and the fire smoke guide plate and the top of the combustion chamber form a closed structure;

The fire smoke guide plate is provided with a plurality of holes.

In a preferred scheme, movable side walls which can slide, lift or rotate are further arranged on two sides of the air inlet and are used for avoiding the operation channel.

In the preferred scheme, the top of the smoke hood is provided with a smoke hood dome, the position of the smoke hood dome close to the top is connected with the air inlet of the exhaust fan, and the air outlet of the exhaust fan is communicated with the oil smoke purifier on the top, the bottom and the side lower part of the stove body.

the utility model provides a pair of no oil smoke kitchen range, through adopting the petticoat pipe of restriction air intake cross-section, can start the back when the air exhauster, petticoat pipe inner chamber space compares for the negative pressure with atmospheric environment, the oxygen suppliment air flows to the petticoat pipe through the air intake all the time in following atmospheric environment promptly, thereby ensure the collection effect of oil smoke, the utility model discloses a vapor experiment is verified, inject water in the pot and boil out promptly, open the air exhauster back, vapor is rotatory the rising in the petticoat pipe with the mode as shown in figure 2, discharge from the air exhauster, in whole process, vapor does not see the loss, ambient temperature is 0 ~ 5 degrees centigrade during the use, the loss of vapor is with the fine observation of naked eye.

Drawings

The invention will be further explained with reference to the following figures and examples:

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the side view of the present invention.

fig. 3 is a schematic view of the side view of the pot of the present invention.

Fig. 4 is a schematic side view of the preferred embodiment of the middle smoke cover of the present invention.

3 FIG. 3 5 3 is 3 a 3 schematic 3 sectional 3 view 3 of 3 A 3- 3 A 3 in 3 FIG. 3 4 3. 3

Fig. 6 is a schematic side view of another preferred embodiment of the middle smoke cover of the present invention.

Fig. 7 is a schematic top view of the preferred embodiment of the middle smoke cover of the present invention.

fig. 8 is a schematic top view of a preferred embodiment of the middle smoke cover of the present invention.

In the figure: the range hood comprises a range hood 1, an air inlet 101, a range hood side wall 102, a range hood dome 103, a side push side wall 104, a side push guide rail 105, a bent part 106, a roller 107, a lip 108, a driving device 109, a steel wire rope reel 110, a guide wheel or guide pipe 111, a curve cylinder 112, a spherical piston 113, an air storage tank 114, a one-way valve 115, an air pump 116, a motor 117, an electromagnetic valve 118, a range body 2, a range body pot edge 21, a range body table top 22, an exhaust fan 3, a tempering port 4, a combustion chamber 5, a mixing chamber 6, an air inlet chamber 7, a gas pipe 8, a pot 9, an oil smoke channel 10, a fire channel 11, a flame.

Detailed Description

example 1:

the utility model provides a lampblack-free cooking stove, is equipped with the petticoat pipe 1 of restriction air intake cross-section in the top of 2 pans of the kitchen body, 1 side of petticoat pipe and back be equipped with petticoat pipe lateral wall 102, the top is equipped with petticoat pipe dome 103, openly is equipped with air intake 101, the cross-section of air intake 101 is set to when air exhauster 3 starts the back, 1 inner chamber space of petticoat pipe compares for the negative pressure with atmospheric environment. Namely, after the exhaust fan 3 is started, the oxygen supply air enters the smoke hood 1 from the air inlet 101 under the condition of negative pressure and in the atmospheric environment. By the structure, the oil smoke collection efficiency is greatly improved.

in an optimal scheme, the distance between the side face of the smoke hood 1 and the stove body 2 is 0 ~ 40 cm., specifically, the distance between the bottom of the arc ~ shaped or approximately circular curved smoke hood side wall 102 of the smoke hood 1 and the stove body table top 22 of the stove body 2 is 0 ~ 40cm, preferably 0 ~ 20cm, further preferably 0 ~ 10cm, further preferably 0 ~ 5 cm., or the distance between the inner side of the arc ~ shaped or approximately arc ~ shaped curved smoke hood side wall 102 of the smoke hood 1 and the stove body pot edge 21 of the stove body 2 is 0 ~ 40cm, preferably 0 ~ 20cm, further preferably 0 ~ 10cm, further preferably 0 ~ 5 cm., so as to control the size of the cross section of the air inlet 101 of the smoke hood 1.

As can be seen from the gas flow pressure equation,

f = CρAv×v/2

f is the required negative pressure, rho is the air density, A is the effective cross-sectional area of the air inlet, v is the wind speed, and C is the resistance coefficient. The cross-sectional area of the air inlet is reduced, and negative pressure can be effectively improved. In this example, the oil fume collecting effect is excellent through the water vapor simulation experiment.

in a preferred scheme, as shown in fig. 1 ~ 4, the smoke hood dome 103 is an arc ~ shaped or parabolic top or a near arc ~ shaped or parabolic top formed by other curved surface shapes, and the smoke hood side wall 102 is an arc ~ shaped surface or a near circular curved surface.

Example 2:

On the basis of the embodiment 1, as shown in fig. 2 and 3, in a preferred scheme, the position, close to the top, of a hood dome 103 of the smoke hood is connected with an air inlet of an exhaust fan 3, an air outlet of the exhaust fan 3 is connected with a lampblack passage 10, the lampblack passage 10 is connected with an air inlet chamber 7, the air inlet chamber 7 is connected with a mixing chamber 6 through a porous net, a gas pipe 8 is connected with the mixing chamber 6, a combustion chamber 5 is arranged at the upper part of the mixing chamber 6, the combustion chamber 5 is connected with a fire passage 11, and the fire passage 11 is connected with a chimney. With the structure, the collected oil smoke passes through the oil smoke channel 10 from the air inlet chamber 7, passes through the porous net, is fully mixed with the fuel gas from the fuel gas pipe 8 in the mixing chamber 6, enters the combustion chamber 5 for combustion, and the high-temperature flue gas after combustion is discharged into a chimney through the fire channel 11. The detection mechanism detects the basis of GB18483-2001 annex A, HJ-T44-1999. The detection instrument is an infrared light splitting oil detector, and the detection result is that the actually measured oil smoke emission concentration at the smoke inlet of the stove is 9.4 mg/m³The actually measured fume exhaust concentration at the fume outlet of the stove is 0.3 mg/m³The oil fume purification rate is 94.7%, the oil fume purification rate completely meets the emission standard, and neighborhood disputes are reduced. Especially, the food and beverage place in former district can only set up at the top of a building, adopts the utility model discloses afterwards, the food and beverage place can set up at arbitrary floor, and can not influence the neighbor because of discharging the oil smoke.

In a preferred scheme, as shown in fig. 2 and 3, the fire channel 11 and the oil smoke channel 10 are positioned in a chimney so as to exchange heat with each other;

In the lower part of the chimney, the fire channel 11 is close to the inner side of the chimney, namely the side which is not easy to touch by an operator, and the oil smoke channel 10 is close to the outer side of the chimney; on the upper part of the chimney, the fire channel 11 is close to the outer side of the chimney, the oil smoke channel 10 is close to the inner side of the chimney, after heat exchange at the lower part of the chimney, the temperature of high-temperature smoke in the fire channel 11 is reduced to some extent, the pipe wall temperature uniformity of the oil smoke channel 10 can be higher due to the outer side, and oil smoke condensation on the pipe wall of the oil smoke channel 10 is avoided.

Or the smoke hood dome 103 is communicated with the oil smoke purifier at the top, the bottom and the lower side of the kitchen body 2. Such as electrostatic oil smoke purifiers.

Example 3

on the basis of the embodiments 1 and 2, as shown in fig. 1 ~ 3, a preferable scheme is that a tempering hole 4 is further arranged on the back surface of the smoke hood 1 and is used for attracting the deflection direction of the flame 12 when the pot is turned upside down;

The tempering port 4 is connected with a tempering flue 13. By the structure, when a cook is jolting a pot, the negative pressure of the tempering hole 4 attracts the flame of the gas pipe 8 to the back of the stove body 2, so that the cook is prevented from being influenced by high temperature.

Further preferably, a barrier strip is further arranged on the inner side of the smoke hood 1 and the inner side of the upper part close to the edge of the air inlet 101, so that the smoke is prevented from escaping under the influence of turbulent flow.

Example 4:

on the basis of embodiments 1 ~ 3, as shown in fig. 4 ~ 7, it is preferable that movable side walls capable of sliding, lifting, or rotating are further provided at both sides of the air inlet 101, and the movable side walls are used for avoiding the operation passage.

It is further preferred that the side walls 104 are slidable and that the side walls 104 are adapted to escape the working channel. When seasoning is desired, the cook can slide the side walls 104 open for easy access.

In a preferred scheme, as shown in fig. 5, the side walls 102 of the smoke cage on two sides of the air inlet 101 are provided with side push guide rails 105, the top of the side push side walls 104 are provided with bent parts 106, the height of the bent parts 106 is convenient for the smoke cage side walls 102 to be hung on the side push guide rails 105, the top of the bent parts 106 is provided with a downward bent lip 108, the lip 108 is provided with rollers 107, and the rollers 107 are installed on the side push guide rails 105. With the structure, the side-push side wall 104 can be kept vertically suspended, the stress is better, and the smoke hood side wall 102 slides smoothly. The roller 107 in this example is of a double roller structure. The middle vertical plane of the shaft of the double roller wheel is superposed with the extension line of the side pushing side wall 104. Such that the side push sidewall 104 remains substantially vertical.

The preferred solution is shown in fig. 6, where the side push rails 105 are arranged obliquely. In this embodiment, the side-push guide rails 105 are preferably inclined toward the air inlet 101, so that the side-push side walls 104 tend to slide toward the air inlet 101.

preferably, as shown in fig. 7, a winding device is further provided, the winding device in this example comprises a fixedly installed wire rope drum 110, the wire rope drum 110 is connected with a driving device 109, the driving device 109 in this example adopts a combination of a motor and a speed reducer, the speed reducer in this example comprises at least one transmission mechanism adopting friction transmission, so that the output torque is limited, the winding device is connected with the side push side walls 104 on two sides through a wire rope, and a plurality of guide wheels or porcelain tubes 111 are arranged on a passing path of the wire rope. The winding device is operated to slide the side push wall 104 in the direction of the rear surface of the body 2. Further preferably, an infrared sensing device is further provided, and when the infrared sensing device detects the position of the pan 9, for example, the infrared sensing devices installed at both sides of the air inlet 101, the winding device can be driven to start to operate. Only one hoisting device is shown in fig. 7, and in practice two hoisting devices can be installed for better operation. For example, when seasoning is only required on one side, only the side push sidewall 104 on one side needs to be opened for access to the working channel.

in a preferred scheme, as shown in fig. 8, a curved cylinder 112 is fixedly arranged on the smoke hood 1, a piston rod of the curved cylinder 112 is connected with the side pushing side wall 104, and the side pushing side wall 104 is driven to slide by the curved cylinder 112. The pistons of the curved cylinders 112 are preferably spherical or approximately spherical pistons. The curve air cylinder 112 is communicated with the air storage tank 114 through an electromagnetic valve 118, the electromagnetic valve 118 adopts a two-position electromagnetic valve, one position is straight-through, one position is empty, the air pump 116 is communicated with the air storage tank 114 through a one-way valve 115 for supplying air to the air storage tank 114 in a one-way mode, and the motor 117 is connected with the air pump 116 and used for driving the air pump 116 to rotate. When the solenoid valve 118 is switched to be straight, the curve air cylinder 112 drives the side pushing side wall 104 to be opened, the solenoid valve 118 is switched to be empty, and the side pushing side wall 104 is closed. The curve cylinder 112 adopts a single-end driving structure, the other end of the curve cylinder is open to the atmosphere, and the piston return of the curve cylinder 112 is realized by the obliquely arranged side push guide rail 105 or a spring.

Further, the driving side pushing side wall 104 may be slid by a rack and pinion mechanism. For example, a rack is arranged on the side push side wall 104, a gear is arranged on the smoke hood 1, the gear is connected with the motor, and the gear is meshed with the rack. Not shown in the figures.

In the lifting scheme, the movable side wall is connected with the smoke hood side wall 102 through a guide rail, and the air cylinder is connected with the movable side wall to drive the movable side wall to lift. The cylinder is also driven by an air reservoir 114 and an air pump 116.

In the reversible version, the movable side wall is hinged to the hood side wall 102 and the cylinder is connected to the movable side wall to drive the movable side wall to reverse.

example 5:

on the basis of embodiments 1 ~ 4, a fire smoke guide plate is arranged above the combustion chamber 5 and below the pot 9, and forms a closed structure with the top of the combustion chamber 5, so that the combusted smoke is directly exhausted ~ the fire channel 11, and flame is not sprayed when a cook tosses the pot.

the fire smoke guide plate is provided with a plurality of holes. With this structure, partial flame can pass through, thereby improving thermal efficiency.

The fire smoke guide plate is fixedly or movably connected with the combustion chamber 5. In the movable connection mode, a chef can conveniently decide whether to use the fire smoke guide plate according to needs, for example, the fire smoke guide plate can be taken down when certain dishes which do not need to be fried are prepared.

The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be regarded as limitations of the present invention, and on the premise of non-conflict, various technical features described in the present invention can be combined with each other. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. A lampblack-free stove is characterized in that: be equipped with petticoat pipe (1) of restriction air intake cross-section in the top of the kitchen body (2) top of a kitchen range, petticoat pipe (1) side and back be equipped with petticoat pipe lateral wall (102), openly be equipped with air intake (101), the cross-section of air intake (101) is set to: when the exhaust fan (3) is started, the inner cavity space of the smoke hood (1) is negative pressure compared with the atmospheric environment.

2. A smokeless stove as defined in claim 1, wherein: the top of the smoke hood (1) is provided with a smoke hood dome (103).

3. A smokeless stove as defined in claim 2, wherein: the hood dome (103) is an arc top, a parabolic top, a hyperbolic top or a similar arc top, parabolic top or hyperbolic top formed by other curved surface shapes.

4. A smokeless stove as defined in claim 1, wherein: the overlooking cross section of the side wall (102) of the smoke hood is an arc-shaped surface or a curved surface similar to a circle.

5. the lampblack ~ free stove as claimed in claim 1, wherein the distance between the side wall (102) of the smoke cover and the stove body (2) is 0 ~ 40 cm.

6. the lampblack ~ free stove as claimed in claim 5, wherein the distance between the side wall (102) of the smoke cover and the stove body table top (22) of the stove body (2) is 0 ~ 40 cm;

or the distance between the inner side of the bottom of the smoke hood side wall (102) and the stove body pot edge (21) of the stove body (2) is 0 ~ 40 cm.

7. A smokeless stove as defined in claim 1, wherein: the top of the smoke hood (1) is provided with a smoke hood dome (103), the position, close to the top, of the smoke hood dome (103) is connected with an air inlet of an exhaust fan (3), an air outlet of the exhaust fan (3) is connected with an oil smoke channel (10), the oil smoke channel (10) is connected with an air inlet chamber (7), the air inlet chamber (7) is connected with a mixing chamber (6) through a porous net, a gas pipe (8) is connected with the mixing chamber (6), the upper part of the mixing chamber (6) is provided with a combustion chamber (5), the combustion chamber (5) is connected with a fire channel (11), and the fire channel (11) is connected with a chimney; the air inlet chamber (7), the mixing chamber (6) and the combustion chamber (5) are all positioned in the stove body (2).

8. A smokeless stove as defined in claim 1, wherein: a fire smoke guide plate is arranged above the combustion chamber (5) and below the pot (9), and the fire smoke guide plate and the top of the combustion chamber (5) form a closed structure;

The fire smoke guide plate is provided with a plurality of holes.

9. A smokeless stove as defined in claim 1, wherein: and movable side walls which can slide, lift or rotate are further arranged on two sides of the air inlet (101), and the movable side walls (104) are used for avoiding the operation channel.

10. A smokeless stove as defined in claim 1, wherein: the top of petticoat pipe (1) is equipped with petticoat pipe dome (103), and the position that petticoat pipe dome (103) are close to the top is connected with the air intake of air exhauster (3), and the air outlet and the kitchen body (2) top of air exhauster (3), bottom and the oil smoke clarifier intercommunication of side below.