CN114608037A

CN114608037A - Multifunctional stove

Info

Publication number: CN114608037A
Application number: CN202210305923.2A
Authority: CN
Inventors: 张卫军
Original assignee: Nanjing Huayi Hotel Equipment Manufacture Engineering Co ltd
Current assignee: Nanjing Huayi Hotel Equipment Manufacture Engineering Co ltd
Priority date: 2022-01-19
Filing date: 2022-03-25
Publication date: 2022-06-10
Also published as: CN218178980U; CN218954957U; CN116007017A; CN218972726U

Abstract

The invention relates to a multifunctional stove which comprises a stove body, a stove body and a stove body, wherein the stove body is provided with a plurality of cooking positions for heating food materials and a smoke inlet structure for providing an oil smoke inlet; a smoke guide device configured to have a certain smoke guide path for guiding the oil smoke near the cooking position of the oven body; a flue device in communication with the smoke intake structure and configured to have a smoke evacuation channel; the method is characterized in that: the smoke evacuation passageway of the flue device includes: the deposition section is provided with a deposition material outlet at the other end; and one end of the smoke exhaust section is communicated with the deposition section, and the other end of the smoke exhaust section is provided with a smoke outlet. The multifunctional furnace has a compact structure, is convenient to clean, can effectively utilize waste heat, and is energy-saving and environment-friendly.

Description

Multifunctional stove

Technical Field

The present application relates generally to kitchen cookers, and more particularly to a multi-function stove having both cooking and fume extraction functions.

Background

In commercial or other large-scale cooking applications, stoves with heating capabilities alone do not meet the full cooking needs. In commercial cooking occasions such as family catering, hotel catering, roadside snack stalls and the like, the household snack stall also has the requirements of illumination, heat preservation, food material placement, oil smoke absorption, wind and rain shielding and the like. Chinese patent application 201420387982.X proposes a multifunctional cooking range integrating a cooking bench, an ice-cold storage cabinet, a locker, a canopy, etc. in one cooking device. However, such integration is only a simple stacking of a plurality of functional modules, and there is no coordination relationship among the functional modules, especially no coordination relationship of heat transfer, which is likely to cause waste of energy.

Cooking equipment such as current oven, hot spicy dip stove, face stove can produce a large amount of oil fumes at the in-process of culinary art, for reducing the oil fume, often can set up oil absorption cigarette device simultaneously under such culinary art occasion. Compared with the cooking operation table, the smoke inlet of the traditional upward-discharging type oil fume suction device is 80-100 cm higher, so that the height ensures enough operation space and the oil fume suction effect. The oil smoke generated by cooking is adsorbed on the pipe wall and the fan blade of the range hood, thick oil stains are often formed, the range hood is difficult to clean, the smoking efficiency of the range hood device is influenced for a long time, and the service life of the range hood device is shortened. In order to solve the problem of oil stain adhesion, chinese patent application 201610347271.3 provides a fan runner is not stained with oil and is exempted from belt cleaning device, and it sets up a water smoke device inside the lampblack absorber, before the inspiratory oil smoke contact casing of lampblack absorber and swiveling wheel, the water smoke device lasts the blowout water smoke particle, forms in advance on the surface of swiveling wheel and the inner wall of casing the water film layer to prevent adhering to of oil smoke, this patent technology need increase extra water smoke device, has improved the cost and has improved whole oil absorption device's design complexity, has reduced the reliability of its operation. Chinese patent ZL201820073670.X sets up nanometer coating UGT on impeller and impeller shell, utilizes UGT not to be stained with the advantage that water is not stained with the oil, has reduced the inside oil smoke of lampblack absorber and has adhered to. However, the UGT nano coating has high cost and is difficult to maintain once falling off.

In addition, the existing oil smoke sucking device is generally of an updraft type, and the smoke inlet of the oil smoke sucking device protrudes outwards to form a 7-shaped structure. Because the hot oil smoke upwards disperses, the smoke inlet of the updraft range hood is arranged at a position which is approximately vertical to the movement path of the oil smoke, and the updraft range hood can play a role in blocking the oil smoke, so the updraft range hood can often play a better role in absorbing the oil smoke. Accordingly, the area and length of the oil path, the smoke suction port, and the like of the updraft range hood are large, and miniaturization is difficult. In contrast, although the height of the smoke guide device of the downdraft type range hood compared with the furnace body table top is 50-70 cm, the volume of the downdraft type range hood is relatively small, due to the limitation of height, the smoke inlet of the downdraft type range hood is difficult to be completely arranged on the movement path of the oil smoke, and therefore, the effect of absorbing the oil smoke by the downdraft type range hood is often poor.

In order to achieve the effects of safety, beauty, prevention of foreign matters and the like, a protective net is usually arranged at a smoke inlet of the range hood. For the downdraft type range hood, because the smoke suction port is arranged at a lower position, when cooking is performed, the limbs of an operator can easily touch the smoke inlet, and foreign matters can easily enter the smoke inlet, so that the protective net of the smoke inlet is often necessary for the downdraft type range hood. And the net openings of the smoke inlet protective net of the downdraft type range hood are generally arranged more densely to prevent splashed oil drops, water drops and the like from entering. However, the arrangement of the dense protective net at the smoke inlet greatly reduces the effective area of the smoke inlet, and further reduces the smoke suction effect of the downdraft type smoke suction device.

In the occasion of commercial kitchen range, the air intake of oil smoke absorption device often has certain length, leads to the negative pressure of the different positions of air intake different, and the position that keeps away from the fan negative pressure often the undersize, causes the excessive of oil smoke easily.

The invention is provided in view of the above problems of the existing cooking device, especially the problems of poor smoking effect and oil smoke overflow of the downdraft type oil smoke suction device.

Disclosure of Invention

In one embodiment, the present invention relates to a multi-purpose oven comprising: the oven body is provided with a plurality of cooking positions for heating food materials and a smoke inlet structure for providing an oil smoke inlet; a smoke guide configured to have a certain smoke guide path for guiding the soot near a cooking position of the oven body; a flue device in communication with the smoke intake structure and configured to have a smoke evacuation channel; the cooking position has a certain depth to form a cooking space, the shape of the cooking space is cuboid, and the cooking space is formed by a cooking shell; the smoke evacuation passageway of the flue device includes: the deposition section extends along the height direction of the furnace body, one end of the deposition section is communicated with the smoke inlet structure, and the other end of the deposition section is provided with a deposited substance outlet; the smoke discharging section extends along the length direction of the furnace body, one end of the smoke discharging section is communicated with the deposition section, and the other end of the smoke discharging section is provided with a smoke outlet; a contamination box connected to an outlet port of the deposition substance; the flue shell of the smoke exhaust section is attached to the cooking shell.

Furthermore, the flue shell at the joint of the smoke exhaust section and the cooking shell is a plane.

Furthermore, a heat insulating material is arranged at a position, far away from the cooking shell, of the flue shell of the smoke exhaust section.

Further, the oven body is also provided with a heat preservation position for keeping the temperature of the food material; the heat preservation position has certain degree of depth in order to form the heat preservation space, and the shape in heat preservation space is the cuboid, and the heat preservation space comprises the heat preservation casing.

Further, the flue casing of section of discharging fume and heat preservation casing laminating mutually, culinary art casing and heat preservation casing set gradually in the direction of advancing the cigarette.

Furthermore, the dirt accumulation box is detachably connected with the deposited substance outlet, a sealing structure is arranged at the joint of the dirt accumulation box and the deposition section, and a transparent window is arranged on the dirt accumulation box.

Further, the multifunctional stove further comprises: the wind shield is arranged at the smoke inlet structure; uneven holes are formed in the wind shield, and negative pressure at the positions of the holes in the wind shield is kept consistent by setting the sizes and/or positions of the uneven holes.

Further, the multifunctional stove further comprises: the negative pressure generating device is connected to the oil smoke outlet; the filter screen is arranged between the negative pressure generating device and the oil smoke outlet; and the oil receiving basin is arranged at the bottom of the negative pressure generating device and is provided with a space for containing waste water and waste oil.

Furthermore, the smoke exhaust section is obliquely arranged, so that the oil smoke outlet of the smoke exhaust section is higher than other positions of the smoke exhaust section.

Further, the deposition section is obliquely arranged.

The above summary does not include an exhaustive list of all aspects of the present invention. It is contemplated that the invention includes all systems and methods that can be practiced from all suitable combinations of the various aspects summarized above as well as those disclosed in the detailed description below and particularly pointed out in the claims filed with the patent application. Such combinations have particular advantages not specifically set forth in the summary above.

Drawings

Embodiments are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings in which like reference numerals refer to similar elements. It should be noted that embodiments referred to as "a" or "an" in this disclosure are not necessarily the same embodiment.

Figure 1 shows a schematic view of one embodiment of a multifunctional furnace.

Fig. 2 shows a block diagram of the multifunctional furnace of fig. 1.

Fig. 3 is a view showing a smoke inlet structure, a flue device, and a negative pressure generating device of the multi-purpose furnace shown in fig. 1 and 2.

Figure 4 shows a schematic view of a simplified multi-function stove fitted with one embodiment of a wind deflector.

Fig. 5 shows a block diagram of a wind deflector of the multifunctional oven of fig. 4.

Fig. 6 shows a block diagram of a wind deflector of another embodiment.

Fig. 7 shows a block diagram of a wind deflector of another embodiment.

Figure 8 shows a schematic view of another embodiment of a multi-purpose furnace.

Figure 9 shows a simplified schematic diagram of the smoke inlet structure and part of the chimney means of the multi-function furnace of figure 8.

Figure 10 shows a schematic view of one embodiment of a smoke guide of a multi-function furnace.

Figure 11 shows a schematic view of another embodiment of a smoke guide of a multifunctional furnace.

Figure 12 shows a schematic view of another embodiment of a multifunction stove.

Fig. 13 shows a block diagram of a wind deflector of the multifunctional oven in fig. 12.

Figure 14 shows a schematic view of another embodiment of a multifunctional furnace.

Fig. 15 is a simplified structural view showing a smoke inlet structure and a flue device of the multifunctional furnace of fig. 14.

Figure 16 shows a simplified block diagram of one embodiment of the contamination box of figure 15.

Fig. 17 shows a simplified block diagram of a smoke inlet structure, flue means of another embodiment of a multi-purpose furnace.

Figure 18 shows a simplified block diagram of another embodiment of the multi-purpose furnace.

Figure 19 shows a simplified block diagram of another embodiment of the multi-purpose furnace.

Detailed Description

In this section we will explain several embodiments of the invention with reference to the figures. Whenever the shapes, relative positions and other aspects of the components described in the embodiments are not clearly defined, the scope of the present invention is not limited to only the components shown, which are for illustrative purposes only. Additionally, while numerous details are set forth, it is understood that some embodiments of the invention may be practiced without these details. In other instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Spatially relative terms, such as "under … …," "under … …," "below," "over … …," "over," and the like, may be used herein for convenience of description to describe one element or feature's relationship to another element or elements or feature or features, as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation above … … and below … …. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As used herein, the singular forms "a", "an", and the like are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

The terms "or" and/or "as used herein should be interpreted as being inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C. An exception to this definition will occur only when a combination of elements, functions, steps or acts are, to some extent, inherently mutually exclusive.

The term "coupled" as used herein includes direct and indirect connections, and does not require physical contact between the parts to be connected, including snap-fit connections, screw connections, fastenerless connections, welding, riveting, and integral connections. In the case of component fitting, the fit clearance includes a fit relationship such as clearance fit, transition fit, interference fit or variable clearance.

Referring to fig. 1, the definitions of various directions and positions of the multifunctional furnace mentioned herein are as follows: the direction L indicated by an arrow is defined as the "length direction", the direction W is defined as the "width direction", and the direction H is defined as the "height direction".

The smoke inlet structure mentioned herein has a certain length and different negative pressure values at different positions thereof. Referring to fig. 4, the end a is the end with a larger negative pressure and is defined as the "smoke evacuation proximal end"; the B end is the end with smaller negative pressure and is defined as the far end of smoke exhaust. Referring to fig. 13, in this structure, the smoke evacuation channel is disposed in the middle of the smoke intake structure, and therefore, the end a is the end with a larger negative pressure and is defined as the "smoke evacuation proximal end", and the ends B on both sides are the ends with a smaller negative pressure and are defined as the "smoke evacuation distal end".

Fig. 1 to 3 show a first embodiment of the multifunctional furnace of the present invention.

The multifunctional oven 100 includes an oven body including a table top 101, a plurality of openings formed on the table top 101 to form cooking positions 110, and the cooking positions 110 are used for placing a cooking device to perform cooking operations. As an alternative embodiment, the top 101 does not have an opening for placing a cooking device, and the cooking device is connected to the top 101 by means of an external hanging method.

The mesa 101 is made of stainless steel. The stainless steel material is beautiful and durable, and compared with aluminum, the stainless steel has more stable chemical property and is more beneficial to human health. As an alternative embodiment, the material of the table top 101 may be metal, glass, ceramic, marble, wood material with surface treatment, or other materials.

The body of the multi-function furnace 100 further includes a front plate. In the present embodiment, the front panel includes a control panel 102 and a cabinet door 103. The control panel is provided with a man-machine interaction part 1021, the man-machine interaction part can be a mechanical key such as a dial button, a button or a knob, and can also be a touch key or a non-contact key, and the man-machine interaction part 1021 is used for controlling the work of one or more operation modules of the multifunctional furnace. As an alternative embodiment, the man-machine interaction part is not arranged on the front plate, but arranged on any one or more positions of the table top, the side plate, the rear plate and the like. As an optional implementation mode, an externalized human-computer interaction piece is not arranged, and an operator can control the work of one or more operation modules of the multifunctional furnace in a voice control mode, a remote control mode or the like.

The cabinet door 103 can be opened to provide the storage space inside the furnace body, and the design of the cabinet door can also be convenient for maintaining or repairing the internal structure of the multifunctional furnace.

The furnace body also comprises side plates 104, a back plate 105 and a bottom plate 106. In this embodiment, a negative pressure generator 140 is installed in the oven body, a smoke outlet 129 is provided in the side plate 104, and the cooking fumes are absorbed by the multifunctional oven and then discharged through the smoke outlet 129. As an optional embodiment, the negative pressure generating device is not disposed inside the furnace body of the multifunctional furnace, and the smoke outlet 129 may be connected to an external fan, a flue, an oil-water separator, a purifier, and the like. As an alternative embodiment, the smoke outlet can be arranged at any position of one or more positions of the table top, the front plate, the side plate, the back plate and the bottom plate. Particularly, the furnace body is not provided with a smoke outlet, the furnace body of the multifunctional furnace is internally provided with an oil fume treatment device, and waste oil, waste water and the like brought by oil fume are directly collected in the furnace body.

In the present embodiment, the negative pressure generating device 140 and the electrical box 150 are fixed on the bottom plate. As an alternative embodiment, the negative pressure generating device, the electrical box and other functional structures can also be fixed to any position of the side plate, the back plate, even the back of the table top and the like.

The multifunctional furnace further comprises a base 107, the base 107 being connected to the base plate 106. The base 107 may be a fixed base. The base 107 may also be a mobile base including adjustable feet, rollers, etc. As an alternative embodiment, the base 107 can be switched between a fixed base and a movable base, such as adding a brake to the roller structure, and activating the brake when the multifunctional stove moves to a specific position to prevent the multifunctional stove from moving during operation. The connection between base and the furnace body includes fixed connection and detachable connection, and fixed connection's mode includes welding, riveting, integrated into one piece etc. can dismantle the connection and include buckle connection, spiro union etc..

In the present embodiment, a housing having a certain depth at the cooking position 110 to form a depressed cooking space 111 for installing a cooking appliance, a total of 6 cooking positions are formed in the cooking space 111. The cooking device is a soup stove, the stainless steel inner wall of the cooking device is of a certain depth, the space for containing food materials and liquid is formed, soup food materials such as noodles, rice noodles, wonton and spicy soup can be cooked, the grooves are formed in the periphery of the cooking position, the spaces for containing liquid are formed in the grooves, the liquid splashed in the soup stove can be collected, and the cooking position is convenient to clean. As an alternative embodiment, the cooking position may also be used to place one or more cooking devices including induction cookers, electric cookers, fryers, and broilers, and the specific cooking configuration may be one or more types including water tanks, heating plates, charcoal bins and grill nets, barbeque bars, and other types of cooking utensils. The heating part 112 is an electric heating tube, and the electric heating tube 112 contacts with the bottom of the cooking space 111 to convert electric energy into heat energy to cook food. As alternative embodiments, heating portion 112 may include one or more of a gas burner, a natural gas burner, a charcoal silo, a heating coil, a microwave device, and other types of heating structures.

The smoke guide 120 is disposed higher than the top 101, and extends upward in the height direction of the oven body, for guiding the smoke generated at the cooking position 110. The smoke guide 120 is disposed above the smoke inlet 131, and the smoke guide and the smoke inlet are disposed near the cooking position 110. Lead cigarette device including erecting baffle 121, horizontal baffle 122, erect baffle 121 and set up along the direction of height, and extend certain distance, horizontal baffle 122 sets up and extends certain distance along width direction. An article shelf (not shown) can be arranged on the transverse baffle plate and can be used for placing articles such as seasonings, food materials, cash registers and the like. The vertical baffle 121 has a height in the vertical direction ranging from 35cm to 45 cm. By adopting the height, the oil smoke absorption effect of the multifunctional stove can be ensured, and meanwhile, the structure of the multifunctional stove is compact, so that convenience for customers to select and operate food materials and seasonings placed on the smoke guide device 120 is improved in commercial occasions. It must be noted that the height of the vertical baffle herein refers to the highest point of the functional structure for blocking or guiding the oil smoke, and in this embodiment, the height of the vertical baffle specifically refers to the vertical distance between the highest point of the vertical baffle and the table top. The height does not include the height of the part for placing food, seasoning or lighting facilities arranged above the vertical baffle, and if the vertical baffle is composed of two or more baffles, the height also refers to the highest point of the functional structure for blocking or guiding the oil smoke. In this embodiment, the smoke guide further comprises a smoke guide screen 123.

The multifunctional stove 100 further comprises a smoke inlet structure, which at least comprises a smoke inlet 131 as a smoke inlet and a smoke gathering part 136 for gathering the smoke. As an optional embodiment, the smoke inlet is not arranged on the table top 101, and the smoke exhaust device is arranged in an external hanging manner, in this case, both the smoke inlet structure and the flue device are externally hung on the furnace body. At this time, the position of the soot inlet is still close to the cooking position 110.

In this embodiment, the multi-function stove 100 further comprises a chimney means, the housing of which forms a smoke evacuation channel. The flue means includes a deposition section 132 disposed along the length of the furnace and a smoke evacuation section 133 disposed along the height of the furnace. One end of the deposition section 132 is connected to the smoke inlet structure so that the oil smoke can enter the smoke evacuation channel through the smoke inlet 131, and the other end of the deposition section 132 is connected to the smoke evacuation section 133. One end of the smoke evacuation section 133 is connected to the deposition section 132, and the other end of the smoke evacuation section is provided with a smoke outlet. The oil smoke outlet may be connected to a negative pressure generating device installed inside the body of the multifunctional stove 100, and in the present embodiment, the negative pressure generating device is a fan 140. Optionally, the fan can be installed through external mode, and the fan is connected to the oil smoke export of section of discharging fume.

As shown in fig. 2 and 3, the fan 140 includes a fan cover 141, a fan screen 142, a fan housing 143, an oil receiving basin 144, and a negative pressure source (not shown) including a fan and/or a worm gear. The fan filter screen 142 is arranged between the smoke exhaust section and the fan and used for filtering oil smoke entering the negative pressure generating device, reducing the oil smoke entering the negative pressure generating device and prolonging the service life of the negative pressure generating device. The fan filter 142 is detachably mounted to the fan housing 143. in an alternative embodiment, the fan filter 142 is fixedly mounted to the fan housing 143, and the fan filter 142 and the fan housing 143 can be integrally detached and cleaned.

The oil receiving basin 144 is disposed at an opening of the fan housing 143, extends toward the inside of the fan housing, and is formed with a receiving space for receiving waste oil and waste water collected in the fan. And a sealing strip is arranged at the joint of the oil receiving basin and the fan shell. In the operating state, the oil receiving basin 144 is fixed to the fan housing by screwing or snapping, and in the cleaning state, the oil receiving basin can be taken out separately for cleaning and then be remounted to the fan housing. As an alternative embodiment, a handle (not shown) is disposed outside the oil receiving basin 144 to facilitate taking out and installing the oil receiving basin.

As shown in fig. 3, the deposition section 132 is designed to be inclined such that the deposition section is connected to the smoke inlet structure at a higher elevation than the deposition section is connected to the smoke exhaust section 133. Specifically, the deposition section 132 forms an inclined included angle α with the horizontal plane, and the inclined included angle α is between 10 ° and 30 °. The junction of the deposition section 132 and the fume extraction section 133 is at an end spacing x from the end of the deposition section 132. By setting the tip spacing x, a spatial containment chamber can be formed at the tip of the deposition section 132. The water droplets, oil droplets, etc. condensed inside the settling section 132 are subjected to gravity, move along the inner wall of the settling section pipe toward the end of the settling section 132, and are collected in the receiving chamber at the end of the settling section 132. At the end of the deposition section 132, a drain valve 134 is provided, which has two states, closed and open. In the closed state, the drain valve 134 remains sealed to prevent the loss of negative pressure in the smoke exhaust duct, thereby ensuring smoke exhaust suction. In the open state, the drain valve 134 is opened to communicate the receiving chamber at the end of the settling section with atmospheric pressure, so that the waste water, oil or other foreign matters collected therein are discharged through the drain valve 134. Through such design, can conveniently collect and clear up the waste oil, the waste water that multi-functional stove produced at culinary art in-process, reduce multi-functional stove's maintenance cost, improve its life.

Due to space limitations, the deposition section 132 has a certain length, and the end-to-end distance x of the receiving chamber must be maintained within a certain range. If x is set too large, the distance between the deposition section 132 and the condensed droplets is too small, so that the droplets of oil and water cannot be sufficiently collected in the deposition section 132, the pressure of the fan is increased, and the service life of the fan is shortened. If x is set too small, the volume of the terminal receiving chamber is too small, requiring frequent maintenance of the receiving chamber. The effective containment volume of the containment chamber is also related to the angle of inclination α of the deposition section 132. The larger the angle of inclination of the deposition section, the larger the effective receiving volume of the receiving chamber at the end thereof, with the same end spacing x. The product of the inclined angle alpha and the terminal distance x of the deposition section 132 in this embodiment is between 100 and 900. By adopting the parameter setting, the sedimentation section has stronger capability of condensing liquid drops, the dirt collecting pressure of the fan is reduced, meanwhile, the accommodating chamber at the tail end of the sedimentation section has larger space, and the maintenance frequency is reduced.

Referring to fig. 4 to 7, the multipurpose furnace further includes a wind shield 135, and the wind shield 135 is mounted to the smoke inlet structure, and particularly, the wind shield is mounted on the smoke inlet 131. The wind deflector 135 is provided with a plurality of openings at the location of which a negative pressure is generated, through which the cooking fumes enter the smoke evacuation channel. These openings have a certain air discharge area. The area of the opening on the unit area of the wind shield is defined as the unit air exhaust area. The position of the wind deflector 135 close to the smoke evacuation channel is the near end (end a) of the smoke evacuation, and the unit air discharge area of the near end of the smoke evacuation is smaller than the unit air discharge area of the far end (end B) of the smoke evacuation. Because the smoke inlet 131 of the multifunctional stove has a certain length, the negative pressure at the near end (end A) of the smoke exhaust of the smoke inlet 131 is stronger than the negative pressure at the far end (end B) of the smoke exhaust. The unit air exhaust area of the near end of the smoke exhaust is set to be smaller than that of the far end of the smoke exhaust, so that the negative pressure of each opening of the whole smoke inlet is basically kept consistent, the loss of the negative pressure at the near end of the smoke exhaust is reduced, and the overflow of the smoke generated at the cooking position close to the far end (B end) of the smoke exhaust due to insufficient negative pressure at the far end of the smoke exhaust is avoided.

Fig. 4 and 5 show a design of the wind deflector in the first embodiment, the opening of the wind deflector 135 is circular, and the diameter of the opening near the proximal end (section a) of the smoke evacuation channel is smaller than the diameter of the opening far from the distal end (end B) of the smoke evacuation channel, so that the unit air discharge area of the proximal end of the smoke evacuation channel is smaller than the unit air discharge area of the distal end of the smoke evacuation channel.

Figure 6 shows an alternative wind deflector design where the openings in wind deflector 135 are rectangular and the size of each opening is consistent. The distance between the openings near the near end (end A) of the smoke exhaust channel is larger than the distance between the openings far from the far end (end B) of the smoke exhaust channel, so that the unit exhaust area of the near end of the smoke exhaust channel is smaller than that of the far end of the smoke exhaust channel.

Figure 7 shows an alternative wind deflector design in which a single aperture is provided in wind deflector 135. The width of the opening near the proximal end (end a) of the smoke evacuation channel is less than the width of the opening at the distal end (end B) of the smoke evacuation channel, such that the unit air discharge area at the proximal end of the smoke evacuation channel is less than the unit air discharge area at the distal end of the smoke evacuation channel.

Fig. 8 to 13 are schematic views of a second embodiment of the present patent. The multifunctional furnace 200 comprises a furnace body, wherein the furnace body comprises a table-board 201, a control panel 202, a cabinet door 203 and a side board 204. A cooking position 210 is provided on the oven body, where a cooking device can be placed to achieve heating of the food material. As shown in fig. 9, the multifunctional stove further includes a smoke inlet structure, the smoke inlet structure includes a smoke inlet 231 provided on the table 201 and a smoke collecting portion 236 connected to the smoke inlet, and the smoke collecting portion 236 is used for collecting the oil smoke entering from the smoke inlet 231. In this embodiment, hold together cigarette portion and be big-end-up's down trapezoidal, hold the great opening area in cigarette portion upper end and can cooperate with the mouth of advancing cigarette, as far as possible absorption oil smoke. The smaller opening area of the lower end of the smoke gathering part can be matched with a smoke exhaust channel of the multifunctional furnace, so that the assembly convenience is improved, and the material cost is reduced. In this embodiment, the smoke evacuation channel 232 is disposed at the center of the smoke inlet, so that the negative pressure near the middle of the smoke inlet is greater than the negative pressure at both sides.

The smoke guide 220 in fig. 8 is provided near the cooking position for guiding the smoke generated from the cooking position. The smoke guiding device 220 comprises a vertical baffle 221 and a horizontal baffle 222. The vertical baffle 221 is inclined towards the orientation of the cooking position 210, the vertical baffle 221 and the plane of the table top have an angle θ, the value of which is in the range of 65 ° to 85 °, θ preferably 70 ° to 80 °, in particular θ is 75 °. As an alternative embodiment, in case the table top itself has a certain inclination angle, the vertical baffle 221 has an angle of 65 ° to 85 ° with the horizontal plane, preferably 70 ° to 80 °, especially 75 °. In an application scenario of a multifunctional oven such as a roadside booth and a snack bar, an operator of the multifunctional oven usually stands at a position far away from a smoke guide device, and a barrier such as a wall and a windshield is often arranged behind the operator, and in the application scenario, because the air flow at the smoke guide device position is often larger than the air flow at the position far away from the smoke guide device, the pressure of air near the smoke guide device is relatively small according to bernoulli's principle, when cooking is performed in the scenario, a movement path of oil smoke generated in a cooking device is often not vertically upward, but has a certain inclined angle toward the smoke guide device, and the angle is usually 5 to 25 °. Through the design of the inclined vertical baffle, compared with the vertical baffle arranged perpendicular to the table board or perpendicular to the horizontal plane, the projection area of the whole smoke guide device on the oil smoke movement path is larger, the smoke collection effect of the smoke guide device is improved, the oil smoke absorption effect of the downdraft oil smoke device is further improved, and the compactness and the attractiveness of the multifunctional stove are improved while the oil smoke absorption efficiency of the multifunctional stove is ensured. The vertical baffle 221 has a height in the vertical direction ranging from 35cm to 45 cm. It should be noted that the height of the vertical baffle herein refers to the highest point of the functional structure for blocking or guiding the oil smoke, and does not include the height of other components arranged above the vertical baffle for placing food materials, seasonings, lighting facilities and the like.

Fig. 10 is a schematic view of another smoke guide 320. The smoke guiding device 320 is disposed at the smoke inlet 331, and includes a vertical baffle 321 and a horizontal baffle 322, wherein the horizontal baffle 322 extends from the vertical baffle 321 to the cooking position. The upper baffle 322 forms an angle β with the horizontal plane, the angle β being 3 ° to 33 °, preferably 13 ° to 23 °, in particular 18 °. By arranging the inclined upper baffle 322, the projection area of the smoke guide device on the oil smoke movement path is further increased, and the oil smoke absorption effect of the downdraft oil smoke absorption device is improved.

In addition, the left and right sides of the smoke guiding device 320 are also provided with the protruded side baffles 323, so that the oil smoke diffused to the left and right can be blocked by the protruded side baffles, and the smoke collecting effect of the smoke guiding device is further improved. The side baffle is arranged from low to high along the width direction (W direction) of the multifunctional furnace. Such setting avoids the side shield to hinder the operation when guaranteeing the effect of gathering together cigarette of side shield.

Figure 10 is another smoke guide design of the present invention. The smoke guide device 420 further comprises an oil baffle 424, wherein the oil baffle 424 is arranged between the cooking position and the smoke inlet and used for blocking oil drops, liquid drops or other foreign matters splashed in a certain height. With such an arrangement, most of the splashed oil droplets, liquid droplets, and other foreign matter can be blocked, and the present invention is particularly suitable for use in deep frying.

Referring to fig. 12, the multipurpose furnace 500 of the third embodiment further includes a wind screen 535. The wind screen 535 is mounted to the smoke inlet of the multi-function stove and is provided with openings for forming a passage through which the oil smoke passes. The area of the opening on the unit wind shield area is defined as unit air exhaust area, the position of the wind shield 535 close to the middle part is a smoke exhaust near end (end A), and the unit air exhaust area of the smoke exhaust near end is smaller than the smoke exhaust area of the smoke exhaust far end (end B) close to two sides. In this embodiment, the smoke evacuation channel is disposed in the middle of the wind deflector, so that the negative pressure formed in the middle of the wind deflector is greater than the negative pressure on both sides. The unit air exhaust area of the near end of the smoke exhaust is set to be smaller than that of the far end of the smoke exhaust, so that the negative pressure at each opening of the whole smoke inlet is basically kept consistent, the negative pressure loss at the near end of the smoke exhaust is reduced, and the oil smoke at the far end of the smoke exhaust is prevented from overflowing. Specifically, as shown in fig. 13, a plurality of circular openings are provided in the windshield 535, and the area of the circular opening near the center of the windshield is smaller than the area of the circular openings on both sides of the windshield. The wind deflector of this embodiment may also adopt a design similar to that of figures 6 and 7.

Fig. 14-16 are schematic views of another embodiment of the present patent. The multifunctional oven 600 includes an oven body including a table top 601, a plurality of openings are formed on the table top 601 to form cooking positions 610, and the cooking positions 610 are used to place a cooking device for cooking. The table 601 further forms a heat preservation position 650, the heat preservation position 650 is used for placing a heat preservation device to maintain the temperature of the food material at a certain level, and the working temperature of the heat preservation device is lower than that of the cooking device. As an alternative embodiment, the top 601 does not have an opening for placing a cooking device and/or a thermal insulation device, and the cooking device and/or the thermal insulation device is connected to the top 601 by means of an external hanging manner.

The smoke guide 620 is higher than the top 601, and extends upward in the height direction of the oven body, for guiding the smoke generated at the cooking position 610. The smoke guide 620 is disposed at the smoke inlet (not shown in fig. 14) near the cooking position.

Referring to fig. 15, the multifunctional stove 600 further includes a smoke inlet structure, the smoke inlet structure at least includes a smoke inlet 631 serving as a smoke inlet and a smoke collecting portion 636 for collecting smoke, and in this embodiment, the smoke collecting portion 636 is an inverted trapezoid with a large top and a small bottom. The larger opening area of the upper end of the smoke gathering part can be matched with the smoke inlet to absorb oil smoke as much as possible. The smaller opening area of the lower end of the smoke gathering part can be matched with a smoke exhaust channel of the multifunctional furnace, so that the assembly convenience is improved, and the material cost is reduced. As an alternative embodiment, the smoke inlet is not arranged on the table 601, and the smoke exhaust device is arranged in an external hanging manner, at this time, the position of the smoke inlet is still close to the cooking position 610.

In this embodiment, the multi-function stove 600 further comprises a flue means. The flue means includes a deposition section 632 provided along the height direction (H direction) of the furnace body and a smoke discharge section 633 provided along the length direction (L direction) of the furnace body. One end of the deposition section 632 is connected to the smoke inlet structure so that the oil smoke can enter the smoke exhaust channel through the smoke inlet 631, and the other end of the deposition section 632 is connected to the smoke exhaust section 633. One end of the smoke exhaust section 633 is connected with the deposition section 632, and the other end of the smoke exhaust section is provided with a smoke outlet. The oil smoke outlet may be connected to a negative pressure generating device installed inside the furnace body of the multifunctional furnace 600. Optionally, the negative pressure generating device can be installed in an external connection mode, and the negative pressure generating device is connected to the oil smoke outlet of the smoke exhaust section.

A deposit material discharge port 634 is provided at a position of the exhaust duct near a portion where the deposit section communicates with the exhaust section, and the deposit material discharge port is located at a lower end of the deposit section. The contamination accumulating box 637 is connected to the deposited material discharge port 634 and further connected to the smoke exhaust duct, and the connection manner between the contamination accumulating box 637 and the smoke exhaust duct includes various detachable connection manners including a snap connection and a screw connection. As shown in fig. 16, a sealing portion 638 is provided at a portion of the contamination box 637 which contacts the smoke discharge duct, and in the present embodiment, the sealing portion 638 is provided on the contamination box 637. The sealing portion 638 may also be provided on the deposition substance discharge port. The dirt accumulation box is connected with the smoke exhaust pipeline through the sealing strip, negative pressure in the smoke exhaust pipeline is prevented from leaking from the dirt accumulation box, and the effect of absorbing oil smoke is guaranteed. As an alternative embodiment, the filth accumulating box 637 is fixedly connected to the deposition material discharge port 634, and a drain valve or a window that can be opened is provided on the filth accumulating box for discharging waste oil, waste water and other objects in the filth accumulating box. During operation, if oil drops, water drops or other foreign matters enter the smoke exhaust duct, the drops or the foreign matters will fall into and accumulate in the dirt collecting box 637 after entering the deposition section 632 under the action of gravity, so as to prevent the foreign matters from entering the smoke exhaust section 633 or entering the negative pressure generating device 640 to damage the negative pressure generating device. By adopting the design, a filter screen of the smoke guide device can be omitted, the trouble of cleaning the filter screen of the smoke guide device is avoided, the oil smoke suction force of the smoke inlet part is larger, and the problem of poor smoke exhaust effect of the downdraft type oil smoke suction device is further solved.

The deposition section 632 is made of a metal material with good heat dissipation performance, such as stainless steel, and the inner surface of the deposition section 632 is treated, so that water, oil vapor, or small droplets of water and oil are easily condensed on the inner wall of the deposition section 632, and due to the action of gravity, the condensed water, oil, or a mixture of water, oil and solid particles flows into the fouling box 637 along the inner wall of the deposition section 632 and is collected in the fouling box.

When the waste oil, waste water or other foreign matters collected in the filth accumulating box 637 reaches a certain weight or volume, the filth accumulating box 637 may be removed from the smoke exhaust duct and cleaned, and then reinstalled at the deposit material discharge port 634. As an alternative embodiment, the dirt retention cartridge 637 includes a transparent window (not shown) through which dirt accumulation within the dirt retention cartridge can be clearly observed. As another alternative, the waste accumulation box 637 may be provided with a mass sensor that signals the user to clean the waste accumulation box when the weight of the material collected in the box reaches a certain threshold.

As shown in fig. 17, another embodiment of the flue device includes a deposition section 732 disposed along the height direction (H direction) of the furnace body and a smoke discharge section 733 disposed along the length direction (L direction) of the furnace body. One end of the settling section 732 is connected to the smoke inlet structure so that the smoke can enter the smoke evacuation channel through the smoke inlet 731, and the other end of the settling section 732 is connected to the smoke evacuation section 733. One end of the smoke exhaust section 733 is connected to the deposition section 732, and the other end of the smoke exhaust section is provided with a smoke outlet which can be connected to a negative pressure generating device installed inside the furnace body of the multifunctional furnace 700. Optionally, the negative pressure generating device can be installed in an external connection mode, and the negative pressure generating device is connected to the oil smoke outlet of the smoke exhaust section. A sedimentary material discharge port 734 is provided in the exhaust pipe near the portion where the sedimentary section communicates with the exhaust section, and is located at the lower end of the sedimentary section. The fouling cassette 737 is connected to the deposited material exhaust 734 and thus to the smoke exhaust duct. The deposition section 732 is disposed obliquely, and the deposition section 732 has an angle with the vertical direction. Through the design, the length of the deposition section can be increased under the condition that the height of the multifunctional furnace is not changed, so that the capacity of the deposition section 732 for condensing waste water and waste oil is improved, and the amount of waste water and oil entering the smoke exhaust section 733 and the negative pressure generating device 740 is further reduced.

As shown in fig. 17, the smoke evacuation section 733 is connected to the negative pressure generating device 740 through the smoke outlet 735. The smoke discharging section 733 is arranged obliquely, an included angle is formed between the smoke discharging section 733 and the horizontal plane, and the height of the smoke outlet 735 connected with the negative pressure generating device 740 of the smoke discharging section 733 is higher than that of other positions of the smoke discharging section 733. Through such setting, can make the water droplet, oil drip or other foreign matter that condense get into the long-pending dirty box 737 under the effect of gravity in section 733 of discharging fume, avoid water droplet, oil drip or other foreign matter to get into negative pressure generating device 740 (like the fan) and damage the negative pressure generating device.

Fig. 18 is a schematic view of a chimney according to another embodiment of the present invention, in which a cooking position 810 has a certain depth to form a depressed cooking space 811 in which a cooking device is disposed. In this embodiment, 6 cooking positions are formed in the cooking space 811, and particularly, the cooking device is a soup stove which has a stainless steel inner wall and a stainless steel outer shell with a certain depth to form a space for accommodating food materials and liquid, so that soup food materials such as noodles, rice noodles, wonton, and spicy soup can be cooked. As an alternative embodiment, the cooking position may also be used to place one or more cooking devices including induction cookers, electric cookers, fryers, and broilers, and the specific cooking configuration may be one or more types including water tanks, heating plates, charcoal bins and grill nets, barbeque bars, and other types of cooking utensils.

The deposition section is arranged along the height direction of the multifunctional furnace body, and the smoke exhaust section 833 is arranged along the length direction of the furnace body. The housing of the smoke evacuation section 833 is in contact with the housing of the cooking space 811. Because cooking device directly produces the heat under operating condition, it can play the effect of heating to section 833 of discharging fume simultaneously, makes section 833 of discharging fume heat up and keep higher temperature, heats the oil smoke that flows through section 833 of discharging fume simultaneously. The heating to section 833 of discharging fume can make the difficult inner wall at the section of discharging fume of oil smoke condense, and the higher oil smoke of temperature is difficult also to condense on the blade of fan or the casing of negative pressure generating device when getting into negative pressure generating device 840 (like the fan) simultaneously to can reduce the clean demand of section and negative pressure generating device of discharging fume, prolong the life of multi-functional stove especially negative pressure generating device. Since the deposition section 832 is arranged from top to bottom and is provided with the fouling box 837, when the deposition section 832 is cleaned, only the cleaning agent needs to be poured into the inlet of the deposition section, and the cleaned liquid directly flows into the fouling box 837, so that the cleaning of the deposition section 832 is easier than that of the smoke exhaust section 833. Therefore, the cleaning effect of the smoke exhaust pipeline can be improved by reducing the condensation of the oil smoke on the inner wall of the smoke exhaust section 833.

The cross section of section 833 of discharging fume is the rectangle, and the pipeline of rectangle has planar casing, can laminate with cooking space 811's shell better, improves cooking device to the heating efficiency of section 833 of discharging fume. As an alternative embodiment, the contact part of the smoke discharging section and the cooking space shell is a plane, and the part far away from the cooking space shell has a certain radian. Because there is not the corner of piling up the oil stain easily in the radian design, such pipeline structure can reduce the clean degree of difficulty to the section inner wall of discharging fume when guaranteeing cooking device to the heating efficiency of the section of discharging fume.

The smoke exhaust section 833 is made of stainless steel or other metal material with good heat conductivity. As an alternative embodiment, an insulating material is disposed on other pipe walls in the casing of the smoke evacuation section 833 away from the cooking space 811 to reduce heat dissipation of the smoke evacuation section 833 and improve heat utilization efficiency.

Fig. 19 is a schematic view of another embodiment of the present invention. The multifunctional oven 900 includes an oven body (not shown) on which a cooking position is formed, the cooking position having a stainless steel case with a certain depth for forming a cooking space 911 for placing a cooking device for cooking operations. The oven body is also provided with a heat preservation position, the heat preservation position is provided with a stainless steel shell with a certain depth to form a heat preservation space 951, the heat preservation space 951 is used for placing a heat preservation device so as to maintain the temperature of food materials at a certain level, and the working temperature of the heat preservation device is lower than that of the cooking device.

The deposition section is arranged along the height direction of the multifunctional furnace body, and the smoke exhaust section 933 is arranged along the length direction of the furnace body. The housing of the smoke evacuation section 933 is in contact with the housing of the cooking space 911. Because the cooking device directly generates heat in an operating state, it can simultaneously heat the smoke exhaust section 933, so that the smoke exhaust section 933 is heated and kept at a high temperature, and simultaneously, the oil smoke flowing through the smoke exhaust section 933 is heated. Meanwhile, the shell of the smoke exhaust section 933 is in contact with the shell of the heat preservation space 951, so that the higher temperature of the smoke exhaust section shell and the oil smoke in the pipeline can be transmitted to the heat preservation space. In view of the advancing sequence of the oil smoke, the oil smoke is discharged after passing through the deposition section and the smoke exhaust section 933 respectively, the cooking space 911 and the heat preservation space 951 are arranged in sequence in the smoke inlet direction, and the shell of the smoke exhaust section 933 is in contact with the shell of the cooking space 911 and the shell of the heat preservation space 951 in sequence. Because the operating temperature of cooking device is higher than the operating temperature of heat preservation device, the section casing 933 of discharging fume can pass through the casing of section pipeline of discharging fume and the inside oil smoke that is heated with the higher temperature of cooking device and transmit to heat preservation space 951, has utilized the heat effectively, has reduced energy loss.

The present invention is not limited to the specific structure and arrangement shown, and it should be considered to be within the scope of the present invention as long as the similar design and effects can be achieved by the connection mode of the functional modules of the multifunctional furnace of the present invention, the inclined design of the smoke guiding device, the smoke exhaust pipe dirt collecting box, the heating structure of the smoke exhaust pipe, and the like.

Claims

1. A multi-purpose stove comprising:

the oven body is provided with a plurality of cooking positions for heating food materials and a smoke inlet structure for providing an oil smoke inlet;

a smoke guide configured to have a certain smoke guide path for guiding the soot near a cooking position of the oven body;

a chimney means in communication with the smoke intake structure configured to have a smoke evacuation channel;

the method is characterized in that:

the cooking position has a certain depth to form a cooking space, the shape of the cooking space is a cuboid, and the cooking space is formed by a cooking shell;

the smoke evacuation passageway of the flue device comprises:

the deposition section extends along the height direction of the furnace body, one end of the deposition section is communicated with the smoke inlet structure, and the other end of the deposition section is provided with a deposited substance outlet;

the smoke exhaust section extends along the length direction of the furnace body, one end of the smoke exhaust section is communicated with the deposition section, and the other end of the smoke exhaust section is provided with a smoke outlet;

a contamination box connected to an exhaust port of the deposition substance;

the flue casing of section of discharging fume with the culinary art casing is laminated mutually.

2. The multi-purpose stove of claim 1, characterized in that:

the section of discharging fume with the flue casing of culinary art casing laminating department is the plane.

3. The multi-purpose stove of claim 2, characterized in that:

and a heat insulation material is arranged at a position, far away from the cooking shell, of the flue shell of the smoke exhaust section.

4. The multifunctional furnace according to any one of claims 1 to 3, characterized in that:

the oven body is also provided with a heat preservation position for keeping the temperature of the food material;

the heat preservation position has certain degree of depth in order to form the heat preservation space, the shape in heat preservation space is the cuboid, the heat preservation space comprises the heat preservation casing.

5. The multi-purpose stove of claim 4, characterized in that:

the flue casing of section of discharging fume with the heat preservation casing is laminated mutually, the culinary art casing with the heat preservation casing sets gradually in the direction of advancing the cigarette.

6. The multi-purpose furnace of claim 1, wherein:

the dirt accumulation box is detachably connected with the deposited substance outlet, a sealing structure is arranged at the joint of the dirt accumulation box and the deposition section, and a transparent window is arranged on the dirt accumulation box.

7. The multi-purpose stove of claim 1, characterized in that:

the multifunctional stove further comprises:

a wind deflector disposed at the smoke inlet structure;

uneven holes are formed in the wind shield, and negative pressure at the positions of the holes in the wind shield is kept consistent by setting the sizes and/or positions of the uneven holes.

8. The multi-purpose furnace of claim 1, wherein:

the multifunctional stove further comprises:

a negative pressure generating device connected to the fume outlet;

the filter screen is arranged between the negative pressure generating device and the oil smoke outlet;

and the oil receiving basin is arranged at the bottom of the negative pressure generating device and is provided with a space for containing waste water and waste oil.

9. The multi-purpose stove of claim 8, characterized in that:

the smoke exhaust section is obliquely arranged, so that the oil smoke outlet of the smoke exhaust section is higher than other positions of the smoke exhaust section.

10. The multi-purpose stove of claim 9, wherein:

the deposition section is arranged obliquely.