CN221005158U - Cooking apparatus - Google Patents

Abstract

The utility model discloses a cooking device, comprising: a cooking device having a steam inlet; the steam device comprises a combustion chamber, a burner and a heat exchange piece, wherein the burner is arranged in the combustion chamber and is heated by fuel gas, the heat exchange piece is matched with the combustion chamber in a heat exchange mode and is provided with a heat exchange flow channel, the heat exchange flow channel is connected with a steam inlet so as to supply steam to cooking equipment, the combustion chamber is provided with a smoke exhaust channel, the smoke exhaust channel is used for exhausting smoke of the steam device, and the smoke exhaust channel is communicated with the lower space of the combustion chamber. According to the cooking equipment provided by the embodiment of the utility model, the gas can be used for heating to generate steam and providing the steam for the cooking device so as to facilitate the cooking of the steam device. By utilizing the fuel gas to heat and generate steam, the limitation of electric heating can be broken through, and the power of the steam device can be greatly improved.

Description

Cooking apparatus

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to cooking equipment.

Background

The main stream integrated kitchen mainly integrates a gas kitchen, a smoke machine and a steaming oven, the volume of the steaming and baking integrated kitchen is about 60L, the volume is much larger than that of a common steamer, the electric power of the whole kitchen is limited by electric power, the electric power of the whole kitchen is within 3kW, and the power of a steam generator for generating steam is generally within 2.5 kW. At such a large volume, the electric power of the steam generator is so small that the heating rate of the food material becomes slow, the taste becomes poor, and the cooking experience is poor.

Disclosure of utility model

An object of the present utility model is to provide a cooking apparatus that can generate steam by heating with gas and supply the steam to a cooking device to facilitate cooking by the steam device. By utilizing the fuel gas to heat and generate steam, the limitation of electric heating can be broken through, and the power of the steam device can be greatly improved.

According to an embodiment of the present utility model, a cooking apparatus includes: a cooking device having a steam inlet; the steam device comprises a combustion chamber, a burner and a heat exchange piece, wherein the burner is arranged in the combustion chamber and is heated by fuel gas, the heat exchange piece is matched with the combustion chamber in a heat exchange mode and is provided with a heat exchange flow channel, the heat exchange flow channel is connected with the steam inlet so as to supply steam to the cooking equipment, the combustion chamber is provided with a smoke exhaust channel, the smoke exhaust channel is used for exhausting smoke of the steam device, and the smoke exhaust channel is communicated with the lower space of the combustion chamber.

According to the cooking equipment provided by the embodiment of the utility model, the gas can be used for heating to generate steam and providing the steam for the cooking device so as to facilitate the cooking of the steam device. By utilizing the fuel gas to heat and generate steam, the limitation of electric heating can be broken through, and the power of the steam device can be greatly improved.

In addition, the cooking apparatus according to the above embodiment of the present utility model may further have the following additional technical features:

in some embodiments, the combustion chamber is arranged along an up-down direction, the burner is arranged in an upper space of the combustion chamber, and high-temperature flue gas generated by the burner exchanges heat with the heat exchange member in a circulation process from top to bottom.

In some embodiments, at least a portion of the heat exchange member is disposed within the combustion chamber and is provided with a flue gas flow path configured to pass flue gas generated by the burner and exchange heat with fluid within the heat exchange flow path.

In some embodiments, the combustion chamber has a first portion and a second portion opposite to each other, the burner is disposed in the first portion, the second portion is connected with a smoke exhaust channel, at least a portion of the heat exchanging member is disposed between the first portion and the second portion, and the smoke flow channel communicates with the first portion and the second portion.

In some embodiments, the first end of the flue gas flow channel is used for feeding flue gas, the first end of the flue gas flow channel is communicated with a part of the combustion chamber where the burner is arranged, and the first end of the flue gas flow channel is gradually contracted inwards in the flue gas feeding direction.

In some embodiments, the second end of the flue gas flow channel is used for discharging flue gas, the second end of the flue gas flow channel is communicated with the flue gas channel of the combustion chamber, and the second end of the flue gas flow channel is gradually expanded outwards in the flue gas discharging direction.

In some embodiments, the heat exchange member comprises a housing and a smoke tube, wherein a heat exchange flow channel is formed in the housing, the smoke tube penetrates through the housing, and two ends of the smoke tube are respectively communicated with two opposite sides of the housing.

In some embodiments, through holes are respectively formed on opposite side walls of the shell, and two end peripheries of the shell are respectively connected with the opposite side walls and connected with the through hole peripheries of corresponding positions.

In some embodiments, the flue gas flow channel comprises a plurality of the flue gas flow channels, and in a cross section perpendicular to the flue gas flow direction in the combustion chamber, the plurality of the flue gas flow channels are configured in a mesh shape.

In some embodiments, the flue gas flow channel is elongated and extends in the direction of exhaust gas in the combustion chamber, and the flue gas flow channel is configured as a straight channel, a curved channel, or a zigzag channel.

In some embodiments, the ratio of the total area of the flue gas flow channels to the total area of the heat exchange member in a cross section perpendicular to the flue gas flow direction in the combustion chamber is in the range of 0.1 to 0.9.

In some embodiments, the arrangement density of the flue gas flow channels in a cross section perpendicular to the flue gas flow direction within the combustion chamber is no less than 0.01 per mm ² and no greater than 1 per mm ².

Drawings

Fig. 1 is a schematic view of a cooking apparatus according to an embodiment of the present utility model.

Fig. 2 is a schematic view of a cooking apparatus according to an embodiment of the present utility model.

Fig. 3 is a schematic view of a cooking apparatus according to an embodiment of the present utility model.

Fig. 4 is a schematic view of a cooking apparatus according to an embodiment of the present utility model.

Fig. 5 is a schematic flow path diagram of a cooking apparatus according to an embodiment of the present utility model.

Fig. 6 is a schematic view of a steaming device of a cooking apparatus according to an embodiment of the present utility model.

Fig. 7 is a schematic view of a steaming device of a cooking apparatus according to an embodiment of the present utility model.

Fig. 8 is a schematic flow path diagram of a cooking apparatus according to an embodiment of the present utility model.

Fig. 9 is a schematic flow path diagram of a cooking apparatus according to an embodiment of the present utility model.

Fig. 10 is a schematic flow path diagram of a cooking apparatus according to an embodiment of the present utility model.

Fig. 11 is a schematic view of a steaming device of a cooking apparatus according to an embodiment of the present utility model.

Fig. 12 is a schematic flow path diagram of a cooking apparatus according to an embodiment of the present utility model.

Fig. 13 is a schematic view of a cooking apparatus of a cooking device according to an embodiment of the present utility model.

Fig. 14 is a schematic view of a cooking apparatus of a cooking device according to an embodiment of the present utility model.

Fig. 15 is a schematic view of a cooking apparatus of a cooking device according to an embodiment of the present utility model.

Fig. 16 is a schematic view of a cooking apparatus of a cooking device according to an embodiment of the present utility model.

Reference numerals:

The cooking apparatus 100, the cabinet 10, the smoke outlet 101, the cooking device 20, the steam inlet 201, the steam outlet 202, the steam cavity 203, the cooking cavity 204, the smoke passage 205, the smoke inlet 206, the smoke outlet 207, the liner 21, the housing 22, the partition 23, the steaming device 30, the combustion chamber 31, the smoke passage 3101, the burner 32, the injection pipe 321, the first gas inlet 3201, the first air inlet 3202, the first fan 322, the heat exchanging piece 33, the heat exchanging flow passage 3301, the water pipe 33a, the heat exchanging pipe section 331a, the connecting pipe section 332a, the smoke flow passage 3302, the housing 331b, the smoke pipe 332b, the premixing component 34, the second gas inlet 3401, the second air inlet 3402, the mixture outlet 3403, the adjusting valve 341, the venturi 342, the second fan 343, the second reversing component 35, the third switching valve 351, the fourth switching valve 352, the gas flow passage 40, the gas inlet 401, the gas outlet 402, the first outlet 402a, the second outlet 402b, the first reversing component 41, the first switching valve 411, the second switching valve 412, the water pump 50, and the water pump 60.

Detailed Description

In order to solve the problem that the power of a steam generator in the related art is difficult to meet the requirement of cooking with large volume, the utility model provides cooking equipment which can generate steam by utilizing gas heating. The utility model provides a steam box which is supplied with steam generated by evaporating water through heat generated by combustion of fuel gas, thereby meeting the requirements of steaming and cooking.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1, a cooking apparatus 100 according to an embodiment of the present utility model includes a cooking device 20 in which food to be cooked can be placed and food cooking can be performed by heating, wherein the cooking device 20 may have a steam inlet 201, and the steam inlet 201 may introduce steam to heat and cook the food to be cooked.

In addition, the cooking apparatus 100 may further include a steam device 30, the steam device 30 being connected to the steam inlet 201, the steam device 30 being configured to be heated by gas and may supply steam to the steam inlet 201.

According to the cooking apparatus 100 of the embodiment of the present utility model, steam may be generated by heating with gas and supplied to the cooking device 20 to facilitate cooking of the steaming device 30. By using gas heating to generate steam, the limitation of electric heating can be broken through, and the power of the steam device 30 can be greatly improved, thereby improving the cooking efficiency and effect. In addition, in the actual cooking process, the cooking temperature has a relatively large influence on the mouthfeel of the food, and the mouthfeel of the cooked food can be optimized by improving the cooking power.

The cooking device 100 of the present utility model provides a new combustion heat exchange system, and generates steam through heat exchange between the high temperature flue gas generated after combustion of the fuel gas and water, and the steam is introduced into the steaming oven to meet the steaming and cooking requirements. The power of the gas evaporator is no longer limited by the electric power, which may be 4kW or even greater. The fuel gas enters the steam device 30 for combustion, and the sufficient air is supplemented in the combustion process, the high-temperature flue gas generated by the combustion heats normal-temperature water to change the water into steam, the temperature of the high-temperature flue gas after heat exchange is reduced and is discharged through the smoke discharging channel 3101 of the integrated kitchen range, the steam is introduced into the steam box for heating food materials, and the steam which is not subjected to heat exchange is introduced into the smoke discharging channel 3101 from the steam outlet 202. Breaks the limit of electric power, uses gas combustion to generate steam and heats the food materials. Different steam quantities are realized by designing the power of gas combustion and the heat exchange efficiency of high-temperature flue gas and water.

In addition, the cooking apparatus 100 of the present utility model generates steam by heating with gas, wherein the cooking apparatus 100 may have a gas flow path 40 therein, the gas flow path 40 may supply gas exclusively to the cooking device 20, the gas flow path 40 may also have a plurality of branches, and the plurality of branches may respectively supply gas to different cooking appliances, so as to accomplish the purposes of cooking, heating, thawing, sterilizing, etc. of food by using the gas.

In some embodiments of the utility model, as shown in fig. 2, the cooking apparatus 100 has a gas flow path 40, the gas flow path 40 having a gas inlet 401 and a plurality of gas outlets 402, the plurality of gas outlets 402 being connected to the gas inlet 401, the cooking device 20 being connected to a portion of the plurality of gas outlets 402, gas being able to enter the gas flow path 40 through the gas inlet 401 and to enter the steaming device 30 to provide gas to the steaming device 30.

Wherein the cooking device 20 may include one or more, the cooking device 20 may be a steam box, a steam oven, an electric cooker, etc.

The plurality of gas outlets 402 includes a first outlet 402a, the first outlet 402a being connected to the steaming device 30. The first outlet 402a may include one or more, for example, a plurality of first outlets 402a may be provided to connect to the same cooking device 20 to supply gas to the same cooking device 20 using the plurality of first outlets 402 a; or a plurality of cooking apparatuses 20 are provided and a plurality of first outlets 402a are connected to the plurality of cooking apparatuses 20 to supply gas to the plurality of cooking apparatuses 20; or a plurality of cooking apparatuses 20 are provided and the plurality of cooking apparatuses 20 are connected to the same first outlet 402a to simultaneously supply gas to the plurality of cooking apparatuses 20 using the first outlet 402 a.

In addition, as shown in fig. 3, the cooking apparatus 100 further includes a gas range 60, and the plurality of gas outlets 402 further includes a second outlet 402b, the second outlet 402b being connected to the gas range 60. The gas can be supplied to the gas range 60 or the cooking device 20 through the gas flow passage 40, so that different cooking appliances can work simultaneously or respectively, and different cooking demands can be met.

The second outlet 402b may be one or more, for example, a plurality of second outlets 402b may be connected to the same gas stove 60, so as to provide gas to the same gas stove 60 through the plurality of second outlets 402 b; or a plurality of gas cookers 60 are provided and a plurality of second outlets 402b are connected to the plurality of gas cookers 60 to supply gas to the plurality of gas cookers 60; or a plurality of gas cookers 60 are provided and the plurality of gas cookers 60 are connected to the same second outlet 402b to simultaneously supply gas to the plurality of gas cookers 60 by using the second outlet 402 b.

In addition, the cut-off and cut-on functions may be integrated in the gas range 60 or the cooking apparatus 20 in order to control whether gas is introduced into the gas range 60 and the cooking apparatus 20. Of course, in order to improve the safety of the cooking apparatus 100, a reversing structure is further provided in the gas flow path 40 in the present utility model to facilitate switching of the flow direction of the gas.

As shown in fig. 4, the fuel gas flow path 40 includes a first reversing assembly 41, and the first reversing assembly 41 is respectively connected to the fuel gas inlet 401 and the plurality of fuel gas outlets 402 and configured to selectively control the flow of fuel gas flowing into the fuel gas inlet 401 to one or more of the plurality of fuel gas outlets 402. The gas flow direction in the gas flow channel 40 can be adjusted through the first reversing component 41, so that the flow direction of the gas can be conveniently adjusted, the safety of the gas flow channel 40 is effectively improved, and the risk of gas leakage is avoided.

Wherein, as shown in fig. 5, the first reversing assembly 41 comprises a first switch valve 411, and the first switch valve 411 is connected between the gas inlet 401 and the first outlet 402 a. Through the first switch valve 411, the on-off between the gas inlet 401 and the first outlet 402a can be realized, thereby facilitating control of whether to supply gas to the cooking apparatus 20, improving safety and stability, and facilitating control of the cooking apparatus 100 by a user.

In addition, as shown in fig. 5, the first reversing assembly 41 further includes a second switching valve 412, and the second switching valve 412 is connected between the gas inlet 401 and the second outlet 402 b. Through the second switching valve 412, the on-off between the gas inlet 401 and the second outlet 402b can be realized, thereby facilitating control of whether to supply gas to the cooking device 20, improving safety and stability, and facilitating control of the gas range 60 by a user.

In combination with the foregoing, as shown in fig. 5, the first reversing assembly 41 includes a first switch valve 411 and a second switch valve 412, where the first switch valve 411 is connected between the gas inlet 401 and the first outlet 402a, and the second switch valve 412 is connected between the gas inlet 401 and the second outlet 402b, so that the on-off of the plurality of gas outlets 402 and the gas inlet 401 can be controlled by the first switch valve 411 and the second switch valve 412 respectively, so as to realize the separate control of the branches, avoid the mutual interference between the gas stove 60 and the cooking device 20, and improve the stability of the gas flow channel 40. In addition, the first reversing assembly 41 may be provided as a three-way reversing valve, a proportional valve, or the like. The first switching valve 411 and the second switching valve 412 may be provided as shut valves having a switching control function, or may be provided as flow rate regulating valves 341 having a flow rate regulating function, or the like.

As shown in fig. 1 to 4, in some embodiments of the present utility model, the cooking apparatus 100 further includes a cabinet 10, and the cooking device 20 is integrally mounted to the cabinet 10. In addition, the cooking apparatus 100 further includes a gas range 60, and the gas range 60 may be provided on the cabinet 10, so that the gas range 60, the cooking device 20, etc. may be integrated together through the cabinet 10.

Referring to fig. 5 and 6, the steam device 30 includes a combustion chamber 31, a burner 32, and a heat exchanging member 33, wherein the burner 32 is provided in the combustion chamber 31 and configured to be heated by gas, the heat exchanging member 33 is heat-exchanged with the combustion chamber 31 so that fluid passing through the heat exchanging member 33 can be heated by the burner 32, wherein the heat exchanging member 33 has a heat exchanging flow path 3301 therein, the heat exchanging flow path 3301 has a fluid inlet and a fluid outlet, and the fluid outlet of the heat exchanging flow path 3301 can be supplied with steam by the heating action of the burner 32, and in addition, the heat exchanging flow path 3301 is connected with the steam inlet 201 so that steam generated after being heated by the burner 32 is supplied to the cooking apparatus 100 so that the cooking apparatus 100 can be operated by heating, cooking, sterilizing, thawing, etc. of the steam. The fluid inlet of the heat exchanging flow path 3301 may be filled with a liquid such as water, thereby generating steam by heating the burner 32, or may be filled with steam, thereby generating superheated steam by heating the burner 32.

The burner 32 in the present utility model may be an atmospheric burner 32 or a premix burner 32.

Taking the burner 32 as an atmospheric burner 32 as an example, as shown in fig. 5, 9 and 10, in some embodiments of the present utility model, the burner 32 includes an ejector 321, the ejector 321 has a first gas inlet 3201 and a first air inlet 3202, gas can be introduced into the ejector 321 through the first gas inlet 3201, air can also enter the ejector 321 through the first air inlet 3202, gas is ejected from a nozzle under a certain pressure and a certain flow rate, enters an air suction shrinkage tube, and the gas sucks primary air by self energy. The fuel gas and the primary air are mixed in the ejector and then flow out through the fire hole at the head part to burn to form the natural flame.

In addition, as shown in FIG. 5, the combustor 32 also includes a first fan 322, with the first fan 322 being coupled to a first air inlet 3202 and driving air flow from the first air inlet 3202 into the eductor 321. Through setting up first fan 322, can improve the intake of air to can improve the combustion efficiency of combustor 32, improve the utilization ratio and the combustion rate of gas, thereby improve the energy efficiency, reduce the energy consumption, energy-concerving and environment-protective.

Taking burner 32 as a premix burner 32 as an example, as shown in FIG. 8, in some embodiments of the utility model, steam apparatus 30 further includes a premix assembly 34, premix assembly 34 having a second gas inlet 3401, a second air inlet 3402, and a mixture outlet 3403, mixture outlet 3403 being connected to burner 32 and providing a mixture of air and gas to burner 32. The premixing assembly 34 mixes the fuel gas and the air and then introduces the mixed fuel gas and the air into the combustor 32, so that the mixing degree of the fuel gas and the air can be improved, the fuel gas and the air can be uniformly mixed, the combustion efficiency and the energy efficiency of the combustor 32 are improved, the utilization ratio of the fuel gas is optimized, and the energy-saving and environment-friendly effects are realized.

Wherein, as shown in FIG. 8, the premix assembly 34 includes a regulator valve 341, one end of the regulator valve 341 is connected to the second gas inlet 3401 and configured to regulate the flow of gas into the premix assembly 34. The gas flow of the second gas inlet 3401 can be adjusted by the adjusting valve 341, so that the mixing condition of gas and air is adjusted, the concentration of the mixed gas is conveniently adjusted, different gas and air ratios are provided according to different combustion demands, and the combustion efficiency is further improved.

As shown in fig. 8, the adjustment valve 341 is configured such that the opening degree is adjusted according to the gas concentration of the mixture gas outlet 3403. The gas concentration in the mixed gas outlet 3403 can reach the preset concentration range more quickly, so that the combustion efficiency is optimized.

As shown in fig. 8, the premixing assembly 34 further includes a venturi tube 342, one end of the venturi tube 342 is connected to the other end of the adjusting valve 341, and mixing of fuel gas and air can be achieved through the venturi tube 342 by venturi effect, so as to improve mixing filtration of the fuel gas and air, thereby providing a uniform mixed air flow for the mixed gas outlet 3403, so as to facilitate combustion of the burner 32 and improve utilization rate of the fuel gas.

In addition, the premix assembly 34 may also include a second fan 343, the inlet of the second fan 343 being connected to the second air inlet 3402 and the other end of the venturi 342, the outlet of the second fan 343 being connected to the mixture outlet 3403. Through the second fan 343, can further improve the misce bene of gas and air to provide more air for combustor 32, make things convenient for the thorough burning of gas, improve the utilization ratio of gas.

In the foregoing embodiments, the flue gas is generated during the combustion of the burner 32, and thus the flue gas channel 3101 is required to be provided for flue gas, wherein in some embodiments of the present utility model, the combustion chamber 31 has the flue gas channel 3101, the flue gas channel 3101 is used for flue gas of the steam device 30, and at least a portion of the heat exchanging member 33 is provided in the combustion chamber 31 and located between the burner 32 and the flue gas channel 3101, as shown in fig. 5 to 9. Through the smoke exhaust passage 3101, smoke generated in the combustion process of the burner 32 can be exhausted, and heat can be exchanged with the heat exchanging member 33 in the process that the smoke flows to the smoke exhaust passage 3101, so that fluid in the heat exchanging member 33 is heated, and steam is generated in the heat exchanging member 33 conveniently.

In addition, in the cooking device 20, steam is introduced into the cooking device 20 to supply steam to food materials and the like in the cooking device 20 for heating, and a part of the steam flowing into the cooking device 20 is discharged out of the cooking device 20 after heat exchange, and therefore, the cooking device 20 of the present utility model has a steam outlet 202, and the steam outlet 202 communicates with a smoke discharge passage 3101. Through the steam outlet 202, the non-liquefied steam can be discharged, so that the steam is prevented from affecting the operation of electronic devices in the cooking device 20, and the stability and safety of the cooking device 20 are improved. In addition, the steam sent out from the steam outlet 202 may be discharged through the smoke discharge passage 3101, thereby improving the pipe integration in the cooking apparatus 100, and achieving rapid discharge of the steam.

To facilitate the discharge of steam, a valve may be provided between the steam outlet 202 and the smoke discharge passage 3101, and the valve may be provided in such a manner that the flow is unidirectional from the steam outlet 202 to the smoke discharge passage 3101, and the direction from the smoke discharge passage 3101 to the steam outlet 202 is blocked.

As shown in fig. 5, 8, 9 and 10, in some embodiments of the present utility model, the smoke exhaust passage 3101 may be disposed to be connected to an upper space of the combustion chamber 31, so as to facilitate the upward flow of the high temperature smoke generated by the burner 32, and flow out of the smoke exhaust passage 3101 after exchanging heat with the heat exchanging member 33, wherein the combustion chamber 31 is disposed in a vertical direction, the burner 32 is disposed in a lower space of the combustion chamber 31, the smoke exhaust passage 3101 communicates with the upper space of the combustion chamber 31, and the high temperature smoke generated by the burner 32 exchanges heat with the heat exchanging member 33 during the downward flow. The burner 32 is arranged at the lower part of the combustion chamber 31, so that the mixing uniformity between the fuel gas and the air can be improved, the fuel gas can be conveniently and uniformly and effectively combusted, and the combustion efficiency is improved. In addition, the high-temperature flue gas generated by the combustion of the burner 32 can flow upwards more easily due to the higher temperature, so that the rapid and stable discharge of the flue gas can be realized.

As shown in fig. 12, in other embodiments of the present utility model, the combustion chamber 31 is arranged in the up-down direction, the burner 32 is disposed in the upper space of the combustion chamber 31, the smoke exhaust channel 3101 is communicated with the lower space of the combustion chamber 31, and the high temperature smoke generated by the burner 32 exchanges heat with the heat exchanging member 33 in the flow-through process from top to bottom. In the circulation process of the high-temperature flue gas from top to bottom, stable heat exchange with the heat exchange piece 33 can be realized, and the heat exchange efficiency is improved.

The burner 32 is preferably a premix type, and the fuel gas and the air are mixed before entering the burner 32, so that the fuel gas and the air entering the burner 32 are mixed, and thus, the fluid introduced into the burner 32 is uniformly mixed, the stable operation of the burner 32 can be facilitated, the problem that the air and the fuel gas cannot be completely mixed due to layering in the burner 32 is avoided, and the combustion efficiency and effect of the fuel gas are improved.

In addition, through put the combustor 32 overhead, for the scheme of combustor 32 overhead, the time of high temperature flue gas flow direction exhaust passage 3101 is longer to can provide more time for high temperature flue gas and exchange heat with heat exchange member 33, thereby improve the heat transfer duration of flue gas and heat exchange member 33, so that the flue gas will more heat conduction to heat exchange member 33, in order to realize the make full use of energy, reduce the waste of heat, it is energy-concerving and environment-protective.

In connection with the foregoing, the cooking apparatus 20 of the present utility model has a steam cooking function, as shown in fig. 13, and in some embodiments of the present utility model, the cooking apparatus 20 has a steam chamber 203 and a cooking chamber 204, the steam chamber 203 communicates with the cooking chamber 204, and the steam inlet 201 communicates with the steam chamber 203. Steam may be introduced into cooking device 20 through steam cavity 203 for cooking, wherein steam cavity 203 may be spaced apart from cooking cavity 204, thereby utilizing the heat of the steam to heat the walls of cooking cavity 204 and thereby heat the food items within cooking cavity 204; the steam cavity 203 may also be in communication with the cooking cavity 204, so that steam may be introduced into the cooking cavity 204 through the steam cavity 203 to provide steam to the cooking cavity 204 for cooking, thereby improving the steam cooking effect.

In some embodiments of the present utility model, as shown in fig. 13, the steam chamber 203 and the cooking chamber 204 are separated by a partition 23, and a through hole communicating the steam chamber 203 and the cooking chamber 204 is provided in the partition 23. The steam chamber 203 and the cooking chamber 204 are sealed by the partition 23 and the through holes are provided thereon, so that steam can be conveniently flowed from the steam chamber 203 into the cooking chamber 204 to facilitate cooking by using the steam.

Wherein, baffle 23 can be set to the orifice plate form, has arranged a plurality of through-holes on it to in the steam chamber 203 steam can flow into cooking cavity 204 more evenly, improves the culinary art effect.

In some embodiments of the utility model, the spacer 23 is configured Kong Banzhuang, and the aperture density on the spacer 23 is not less than 0.01/mm ² and not greater than 1/mm ². In this way, the through holes can be uniformly arranged on the partition 23, improving uniformity of steam fed from the steam chamber 203 into the cooking chamber 204, thereby further improving cooking effect. Wherein the aperture density on the separator 23 may be set to 0.01/mm ², 0.05/mm ², 0.1/mm ², 0.85/mm ² or 1/mm ², etc., wherein the aperture density represents the number of through holes provided in the same size region, for example, an aperture density of 0.01/mm ² means that 0.01 through holes are provided per square millimeter of the separator 23, that is, one through hole is provided per 100 square millimeters; the aperture density of 1/mm ² means that 1 through hole is provided per square millimeter in the separator 23.

In addition, in other embodiments of the present utility model, the steam inlet 201 may also be connected to the cooking chamber 204. Wherein the cooking device 20 has a cooking cavity 204 for placing food items to be cooked, the steam inlet 201 may also introduce steam into the cooking cavity 204 for cooking.

As shown in fig. 14, the cooking apparatus 20 of the present utility model may be further configured as an oven heated by using a smoke, the cooking apparatus 100 may include a steaming device 30 and the cooking apparatus 20, the steaming device 30 may include a combustion chamber 31 and a burner 32, the burner 32 is disposed in the combustion chamber 31 for heating by using a gas, the cooking apparatus 20 further includes a smoke passage 205, the smoke passage 205 has a smoke inlet 206 and a smoke outlet 207, the smoke inlet 206 is in communication with the combustion chamber 31 for introducing a smoke to heat the food material, and the smoke outlet 207 is for discharging the smoke. Therefore, the flue gas in the combustion chamber 31 can be guided into the flue gas channel 205 and is in heat exchange fit with the cooking cavity 204 of the cooking device 20 in the flue gas channel 205, so that the purpose of heating food materials in the cooking cavity 204 by utilizing the flue gas channel 205 is realized. According to the utility model, the purpose of frying and baking by utilizing the flue gas can be realized, the cooking mode of the cooking equipment 100 is expanded, and different cooking requirements are further met, so that the taste of cooked food is improved.

In addition, the cooking apparatus 100 has a smoke outlet 101 for smoke discharge, and the smoke outlet 207 is connected to the smoke outlet 101. The smoke outlet 101 can be used for smoke exhaust of the cooking device 100, and the smoke outlet 207 can be connected with the smoke outlet 101, so that smoke can be exhausted by using the smoke outlet 101, the integration level of a flue in the cooking device 100 can be improved, the structure of the cooking device 100 can be simplified, and smoke exhaust of the cooking device 100 is facilitated.

As shown in fig. 10, the combustion chamber 31 has a smoke discharge passage 3101 having an inlet connected to the inner cavity of the combustion chamber 31 and an outlet connected to the smoke discharge port 101. The flue gas after heat exchange in the combustion chamber 31 can be discharged through the flue gas discharge passage 3101, so that the stability of the steam device 30 is improved.

Wherein the smoke passageway 3101 is in parallel with the smoke passageway 205. That is, the smoke in the combustion chamber 31 may be discharged through the smoke discharging passage 3101 or the cooking device 20 may be heated through the smoke discharging passage 205, and the smoke passing through the smoke discharging passage 3101 and the smoke passing through the smoke discharging passage 205 may be discharged through the smoke discharging port 101, thereby simplifying the smoke duct in the cooking apparatus 100, reducing the number of connection points of the smoke duct in the cooking apparatus 100, and avoiding the leakage of the smoke, so as to improve the stability and safety of the cooking apparatus 100.

To facilitate selection of the direction of flow of the flue gas, the steam device 30 further comprises a second reversing assembly 35, the second reversing assembly 35 being connected to the combustion chamber 31 and the flue gas channel 205, respectively, and controlling the flue gas in the combustion chamber 31 to selectively pass through the flue gas channel 205. Through the second reversing assembly 35, the flow direction of the smoke in the combustion chamber 31 can be selected, so that the flow direction of the smoke can be conveniently adjusted, the safety of a flue is effectively improved, and the risk of smoke leakage is avoided.

As shown in fig. 10, the second reversing assembly 35 includes a third switching valve 351, one end of the third switching valve 351 is connected to the combustion chamber 31, and the other end is connected to the flue gas inlet 206. Through the third switch valve 351, on-off between the combustion chamber 31 and the smoke inlet 206 can be realized, thereby facilitating control of whether to supply smoke to the cooking apparatus 20, improving safety and stability, and facilitating control of the cooking apparatus 100 by a user.

As shown in fig. 10, one end of the third switching valve 351 is connected to a space of the combustion chamber 31 downstream of the heat exchanging member 33. So that the flue gas passing through the heat exchange member 33 can be effectively utilized so as to fully utilize the heat of the flue gas of the combustion chamber 31, improve the energy utilization rate, and save energy and protect environment. In addition, the flue gas which does not pass through the heat exchange member 33 is prevented from being discharged, so that the heat exchange efficiency of the heat exchange member 33 is influenced, and the influence on the heating efficiency of the heat exchange member 33 is reduced. Of course, one end of the third switching valve 351 in the present utility model may be connected to a position of the combustion chamber 31 corresponding to the heat exchanging member 33, and may even be disposed in a space of the combustion chamber 31 upstream of the heat exchanging member 33.

As shown in fig. 10, the cooking apparatus 100 has a smoke outlet 101, and the second reversing assembly 35 further includes: and a fourth switching valve 352, one end of the fourth switching valve 352 is connected to an outlet of the smoke discharge passage 3101 of the combustion chamber 31, and the other end is connected to the smoke discharge port 101. The fourth switch valve 352 can switch the smoke exhaust passage 3101 and the smoke exhaust port 101 on or off, so that when the smoke exhaust passage 3101 is disconnected from the smoke exhaust port 101, the smoke which originally needs to be exhausted through the smoke exhaust passage 3101 will be exhausted through the smoke exhaust passage 205, so as to heat the cooking device 20 by using the heat of the smoke; when the smoke exhaust passage 3101 is communicated with the smoke exhaust port 101, smoke can be exhausted through the smoke exhaust passage 3101, so that the smoke in the cooking process can be rapidly exhausted, the exhaust efficiency is improved, and the like, and the stability and the safety of the cooking equipment 100 are improved.

As shown in fig. 10, the smoke outlet 207 is connected to the smoke outlet 101, and the smoke outlet 207 can be connected between the fourth switch valve 352 and the smoke outlet 101, so that the smoke in the smoke channel 205 can be conveniently introduced, the smoke can be rapidly discharged through the smoke outlet 101, the safety and stability of the cooking apparatus 100 can be improved, and the influence of the smoke on the taste of food can be avoided.

Cooking device 20 further includes a cooking chamber 204, cooking chamber 204 for cooking food material, and a flue gas channel 205 is spaced from and in heat exchange engagement with cooking chamber 204. Through separating flue gas passageway 205 and culinary art chamber 204, can make things convenient for flue gas heating food material, can avoid flue gas and food material contact to influence the taste of food material again to can improve the culinary art effect of food effectively. Optimizing the taste of the cooking food material and meeting various cooking demands.

In some embodiments of the utility model, as shown in fig. 14-16, the cooking device 20 further comprises a housing 22, wherein a closed cavity is formed inside the housing 22, and a flue gas channel 205 is provided in the cavity. The smoke can be enclosed in the housing 22 to avoid leakage of smoke.

Wherein, the housing 22 can be laminated on the wall of the cooking cavity 204, and the housing 22 can be utilized to heat the wall of the cooking cavity 204, so that the wall of the cooking cavity 204 can be directly heated by utilizing smoke, the food material can be conveniently heated, a cooking mode higher than the steam heating temperature can be provided, the diversified cooking modes are optimized, and different taste demands are met.

In addition, as shown in fig. 15, the cover 22 may be inserted into the cooking cavity 204. Therefore, the multiple surfaces of the cover shell 22 can be utilized to heat the cooking cavity 204, the heating efficiency in the cooking cavity 204 can be improved, food materials in the cooking cavity 204 can be heated conveniently, meanwhile, the cover shell 22 can be arranged to be capable of placing the food materials in multiple surfaces for cooking, and the cooking efficiency is optimized.

In some embodiments of the present utility model, the cover 22 is placed over the wall of the cooking chamber 204, with the inner cavity being formed between the cover 22 and the wall of the cooking chamber 204. Thus, the wall of the cooking cavity 204 can be directly contacted with the flue gas, so that the wall of the cooking cavity 204 is directly heated by the flue gas, the heating temperature and the heating efficiency are improved, the heat waste caused by heat conduction is reduced, and the cooking device is energy-saving and environment-friendly.

In other embodiments of the utility model, it is also possible to construct an internal cavity inside the casing 22, that is to say the casing 22 itself forms an internal cavity for the passage of fumes, which can improve the sealing of the internal cavity compared to the formation of an internal cavity between the casing 22 and the wall of the cooking cavity 204.

As shown in fig. 6 and 7, in some embodiments of the present utility model, the heat exchanging member 33 includes a water pipe 33a, at least a portion of the water pipe 33a is provided in the combustion chamber 31, and a heat exchanging flow path 3301 is formed in the water pipe 33a, so that fluid introduced into the water pipe 33a can pass through the combustion chamber 31 to absorb heat in the combustion chamber 31. The water pipe 33a can be filled with water, and when the water flows through the water pipe 33a, the water can be heated in the combustion chamber 31, and after the water is heated to generate steam, the steam is discharged from the outlet of the water pipe 33a and is sent to the cooking device 20.

As shown in fig. 6 and 7, the water pipe 33a includes a plurality of heat exchange pipe sections 331a, and the heat exchange pipe sections 331a penetrate the combustion chamber 31. The plurality of heat exchanging pipe sections 331a can exchange heat with the internal flue gas of the combustion chamber 31, and the heating efficiency of the water pipe 33a can be improved. Wherein, a plurality of heat exchange tube sections 331a can be set to the form of parallelly connected or series connection, when a plurality of heat exchange tube sections 331a are parallelly connected, can improve the total area of heat transfer runner 3301 to improve the flow area, conveniently improve heating efficiency. When the plurality of heat exchange tube sections 331a are connected in series, the length of the heat exchange flow channel 3301 can be increased, and the fluid can be heated through the plurality of heat exchange tube sections 331a, so that the heating time of the fluid is prolonged, and the heating efficiency and the steam temperature are improved.

The heat exchange tube 331a has opposite ends connected to opposite sidewalls of the combustion chamber 31, respectively. Support for the heat exchange tube 331a may be provided through opposite sidewalls of the combustion chamber 31, so that stability of the heat exchange tube 331a may be improved, so that the heat exchange tube 331a may be stably installed in the combustion chamber 31, structural stability of the steam device 30 may be improved, and service life of the cooking apparatus 100 may be prolonged.

In some embodiments of the present utility model, as shown in fig. 6 and 7, the water pipe 33a further includes a connection pipe section 332a, and the plurality of heat exchange pipe sections 331a are connected end to end by the connection pipe section 332a to form a tube shape extending in a roundabout manner. Thereby the length of the water pipe 33a can be prolonged to prolong the circulation time of the fluid in the water pipe 33a, facilitate better heating, effectively improve the heating efficiency and the temperature of the steam, and facilitate better cooking effect.

As shown in fig. 6, the connecting tube segment 332a is disposed outside the combustion chamber 31. Therefore, the steam device 30 can be conveniently produced, processed and maintained, in the manufacturing process of the steam device 30, the heat exchange tube section 331a can be penetrated in the combustion chamber 31 and is welded with the side wall of the combustion chamber 31, then the connecting tube section 332a is arranged outside the combustion chamber 31 and is welded with the heat exchange tube section 331a, and the connection between the plurality of heat exchange tube sections 331a is realized, so that the heat exchange tube section 331a and the side wall of the combustion chamber 31 can be conveniently welded, and the problems of welding leakage and the like are avoided.

In some embodiments of the present utility model, the plurality of heat exchange tube sections 331a are arranged side by side in the up-down direction and are staggered back and forth, and gaps are provided between adjacent heat exchange tube sections 331a for flue gas to pass through. Thereby can make things convenient for flue gas and heat transfer tube section 331a heat transfer, improve flue gas and heat transfer tube section 331 a's heat exchange efficiency and heat transfer stability, conveniently provide more steam.

In the foregoing embodiment, the fluid is introduced into the water pipe 33a, and the flue gas is utilized to heat the water pipe 33a, so that the fluid passing through the water pipe 33a can be quickly and temperature-exchanged with the flue gas, the heating efficiency of the fluid is improved, and the structure of the steam device 30 is simplified.

As shown in fig. 11, in some embodiments of the present utility model, at least a portion of the heat exchanging member 33 is disposed in the combustion chamber 31, and a portion of the heat exchanging member 33 located in the combustion chamber 31 is provided with a flue gas flow path 3302, and the flue gas flow path 3302 is configured to be suitable for passing flue gas generated by the burner 32, and to exchange heat with fluid in the heat exchanging flow path 3301 when the flue gas passes through the flue gas flow path 3302. Through flue gas runner 3302, can make things convenient for the flue gas to pass through to the heating to the fluid when the flue gas passes through, can effectually improve the heating efficiency to the fluid.

As shown in fig. 11, the combustion chamber 31 has a first portion and a second portion opposite to each other, the burner 32 is provided in the first portion, the second portion is connected with the smoke discharge passage 3101, at least a portion of the heat exchanging member 33 is provided between the first portion and the second portion, and the smoke flow path 3302 communicates the first portion and the second portion. After the burner 32 generates the flue gas, the flue gas is discharged through the flue gas channel 3101 after exchanging heat with the fluid in the heat exchanging channel 3301 through the flue gas channel 3302.

Wherein the flue gas flow channel 3302 is configured to extend in a direction from the first portion to the second portion. The flue gas can be conveniently passed through the flue gas flow channel 3302, so that the flue gas is prevented from being accumulated in the steam device 30 to cause the gas pressure in the combustion chamber 31 to be too high, and the stability and the safety of the steam device 30 can be improved.

In some embodiments, the first end of the flue gas flow channel 3302 is used for flue gas intake, the first end of the flue gas flow channel 3302 communicates with the portion of the combustion chamber 31 where the burner 32 is disposed, and the first end of the flue gas flow channel 3302 is gradually retracted in the flue gas intake direction. The first end of the flue gas flow channel 3302 is gradually contracted, so that the flow guiding effect on the flue gas can be formed, the flue gas can conveniently enter the flue gas flow channel 3302 smoothly, the circulation of the flue gas is facilitated, and the heat exchange efficiency of the flue gas and the heat exchange piece 33 is improved.

In some embodiments, the second end of the flue gas flow channel 3302 is used for discharging flue gas, the second end of the flue gas flow channel 3302 communicates with the flue gas channel 3101 of the combustion chamber 31, and the second end of the flue gas flow channel 3302 gradually expands outwards in the direction of discharging flue gas. The structure that the second end of flue gas runner 3302 expands gradually can form the water conservancy diversion effect to the flue gas to can make things convenient for the flue gas to flow out flue gas runner 3302 smoothly, make things convenient for the circulation of flue gas, avoid producing the turbulent flow behind flue gas discharge flue gas runner 3302, improve the smooth and easy and the stability of flue gas circulation.

Wherein the heat exchanging element 33 extends in the direction of the flue gas flow in the combustion chamber 31. The structure of the steaming device 30 can be simplified, and the assembly, maintenance and disassembly of the steaming device 30 are facilitated.

As shown in fig. 11, in some embodiments, the heat exchange member 33 includes a housing 331b and a smoke tube 332b, the housing 331b is internally configured with a heat exchange flow channel 3301, the smoke tube 332b is penetrating through the housing 331b, and two ends of the smoke tube are respectively communicated with two opposite sides of the housing 331 b. The flue gas can conveniently pass through the flue tube 332b and exchange heat with the fluid in the heat exchange flow passage 3301 in the process of passing through the flue tube 332 b.

The opposite side walls of the housing 331b are respectively provided with a via hole, and the peripheries of the two ends of the housing 331b are respectively connected with the opposite side walls and the peripheries of the via holes at corresponding positions. The structure of the heat exchange piece 33 can be simplified, the structural stability of the heat exchange piece 33 is improved, meanwhile, the smoke can conveniently circulate through the smoke tube 332b, and the heat exchange efficiency and the energy efficiency are improved.

The heat exchanging member 33 is sleeved on the inner side of the peripheral wall of the combustion chamber 31 and extends along the flue gas flow direction in the combustion chamber 31. Thereby being convenient for the circulation of the flue gas, improving the heat exchange efficiency of the flue gas and the fluid in the heat exchange flow channel 3301 and improving the energy efficiency.

In some embodiments, the flue gas flow channel 3302 comprises a plurality. The flue gas flow passages 3302 can be dispersed, more heating points are provided for the heat exchange member 33 (each flue gas flow passage 3302 forms a heating point), and therefore the heating effect, the heating power and the like on the fluid in the heat exchange flow passage 3301 can be improved.

In some embodiments of the utility model, the plurality of flue gas flow channels 3302 are parallel to each other. The smoke circulation can be facilitated, and the processing and the production of the heat exchanging piece 33 can be facilitated.

In some embodiments, the plurality of flue gas flow passages 3302 are configured as mesh-like in a cross-section perpendicular to the flow direction of flue gas within the combustion chamber 31. Wherein, can be with a plurality of flue gas runners 3302 around out a plurality of regions, and a plurality of flue gas runners 3302 can heat its region around to can improve the area of contact of fluid and flue gas runner 3302's wall, and through the heating of a plurality of flue gas runners 3302 of coiling, improve the heating effect to the fluid greatly.

In some embodiments, the flue gas flow path 3302 is in an elongated shape extending along the direction of exhaust gas in the combustion chamber 31, and the flue gas flow path 3302 is configured as a straight path, a curved path, or a zigzag path. The flue gas flow channel 3302 which is preferably capable of being provided by the utility model can have various forms, the flow path of the flue gas can be prolonged by arranging the flue gas flow channel 3302 in a curve or a fold line form, and the heat exchange time between the flue gas and the fluid in the heat exchange piece 33 is prolonged, so that the heat exchange efficiency and the heating function are improved. In addition, the flue gas flow channel 3302 can be set to a straight line path, so that the flue gas can circulate conveniently, the operation of the burner 32 is prevented from being influenced by unsmooth flue gas circulation, meanwhile, the structure of the heat exchange piece 33 can be simplified, and the production and the processing of the steam device 30 are facilitated.

In some embodiments, the ratio of the total area of the flue gas flow passages 3302 to the total area of the heat exchange members 33 in a cross section perpendicular to the flue gas flow direction within the combustion chamber 31 is in the range of 0.1 to 0.9. For example, the ratio may be 0.1, 0.2, 0.35, 0.46, 0.51, 0.68, 0.85, 0.9, etc. Preferably, the ratio is in the range of 0.3 to 0.5. Wherein, the influence of the excessive area of the flue gas flow channel 3302 on the fluid volume in the heat exchange piece 33 can be avoided, and the influence on the structural strength of the heat exchange piece 33 can also be avoided. Meanwhile, a large heat exchange area between the flue gas flow channel 3302 and the fluid in the heat exchange flow channel 3301 can be ensured, and the heat exchange efficiency is effectively improved.

In some embodiments, the flue gas flow passages 3302 are arranged at a density of not less than 0.01/mm ² and not more than 1/mm ² in a cross-section perpendicular to the flue gas flow direction within the combustion chamber 31. For example, the arrangement density of the flue gas channels 3302 may be set to 0.01/mm ², 0.05/mm ², 0.1/mm ², 0.85/mm ², or 1/mm ², etc., wherein the arrangement density of the flue gas channels 3302 represents the number of flue gas channels 3302 provided in the same sized area, e.g., an open cell density of 0.01/mm ² means that 0.01 flue gas channels 3302 are provided per square millimeter, that is, one flue gas channel 3302 is provided per 100 square millimeters; the arrangement density of the flue gas flow channels 3302 being 1 per mm ² means that 1 through hole is provided per square millimeter.

As shown in fig. 5 to 12, in some embodiments of the present utility model, in order to facilitate the passage of fluid through the heat exchange flow passage 3301, the cooking apparatus 100 further includes: a water pump 50 connected to the steaming device 30 for driving fluid into the steaming device 30 and adapted to control the flow of fluid into the steaming device 30, wherein the water pump 50 may be arranged to control the pumping flow into the water pump 50 in dependence on the temperature of the fluid delivered by the steaming device 30. The water pump 50 can stably feed the fluid into the heat exchange flow path 3301 to heat the fluid, thereby improving the stability of fluid circulation. In addition, the water pump 50 may also adjust the flow rate, flow velocity, etc. of the fluid pumped into the heat exchange flow path 3301, so as to adjust the fluid temperature at the outlet of the heat exchange flow path 3301.

In some embodiments, the cooking apparatus 100 further comprises a temperature sensor configured to detect a temperature of the fluid delivered by the heat exchange flow passage 3301, and the pumping flow rate of the water pump 50 is adapted to be adjusted according to the detection of the temperature sensor. Therefore, the pumping flow of the water pump 50 can be detected and regulated through the temperature sensor, the outlet temperature of the heat exchanging runner 3301 can be conveniently regulated, the cooking equipment 100 can be conveniently controlled, and the stability and the safety of the cooking equipment 100 are effectively improved.

In other embodiments, the cooking apparatus 100 further comprises: and a temperature sensor configured to detect the temperature of the fluid sent from the heat exchanging channel 3301, and the amount of the gas introduced into the burner 32 is adapted to be adjusted according to the detection of the temperature sensor. That is, the fluid temperature at the outlet of the heat exchanging channel 3301 may also be adjusted by adjusting the flow rate of the fuel gas. Of course, the flow rate of the fuel gas and the flow rate of the fluid pumped into the heat exchanging channel 3301 may be adjusted at the same time, so as to adjust the outlet temperature of the heat exchanging channel 3301.

In some embodiments, the water inlet of the heat exchange flow channel 3301 is lower than the steam outlet, so that the fluid can be conveniently heated for a longer time, the fluid is prevented from flowing out of the heat exchange flow channel 3301 under the action of gravity, the heating time of the fluid is prolonged, and the energy utilization rate is improved. In addition, the steam outlet of the heat exchange flow path 3301 may be provided at the upper portion of the heat exchange flow path 3301. So that the temperature of the steam can be increased.

Referring to fig. 12, according to some embodiments of the present utility model, a gas branch is added to the pipe gas after entering the integrated cooker, in addition to the gas cooker. The branch is controlled by the first switch valve, and then enters the burner for burning, and the sufficient air is supplemented in the burning process, the high-temperature smoke generated by burning heats normal-temperature water, so that the water is changed into steam, the temperature of the high-temperature smoke after heat exchange is reduced, the steam is discharged through a smoke discharging channel of the integrated kitchen range, the steam is introduced into the steam box for heating food materials, and the steam which is not in time of heat exchange is introduced into the smoke discharging channel from a steam outlet for discharging.

The combustion module of the steam device is a full premix burner, air and fuel gas are fully mixed and then fully combusted in the full premix burner, high-temperature flue gas generated by the generated high-temperature flue gas flows in pipelines, a closed cavity is formed between the pipelines, a water level detection device is added in the cavity to stop the operation of an air water pump, and the water level in the cavity is kept in a certain range.

The heat exchange thermal resistance of the whole heat exchanger is mainly the heat exchange thermal resistance of the high-temperature flue gas and the pipe wall, and the flow speed of the high-temperature flue gas can be improved by the flow of the fuel gas in the pipeline, so that the heat exchange efficiency of the high-temperature flue gas is improved. Compared with a heat exchange system of high-temperature flue gas outside the pipeline, the heat exchange efficiency of the heat exchanger is higher, so that the heat exchange area can be reduced, and the size of the heat exchanger is reduced.

The water level sensor is used for controlling the water pump to work and stop, the control logic is simple, the continuity of steam is higher, and the risk of water spraying in the whole process can be reduced.

Compared with an atmospheric burner, the full premix burner has smaller size and is convenient to install, and when the gas evaporator works, a user cannot perform power adjustment, so that the reliability of the full premix burner can be obviously improved, and the flow channel type waterway system can realize superheated steam.

The full premix burner can be arranged at the top, the flue gas flows from high to low, the generated steam is discharged from high, and the steam before discharge exchanges heat with the high-temperature flue gas to be changed into superheated steam for discharge.

Breaks the limit of electric power, uses gas combustion to generate steam and heats the food materials. Different steam quantities are realized by designing the power of gas combustion and the heat exchange efficiency of high-temperature flue gas and water.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (12)

1. A cooking apparatus (100), characterized by comprising:

A cooking device (20), the cooking device (20) having a steam inlet (201);

A steam device (30), the steam device (30) comprising a combustion chamber (31), a burner (32) and a heat exchanging member (33), the burner (32) being arranged in the combustion chamber (31) and configured to be heated by means of gas, the heat exchanging member (33) being in heat exchanging engagement with the combustion chamber (31) and having a heat exchanging flow channel (3301), the heat exchanging flow channel (3301) being connected to the steam inlet (201) for supplying steam to the cooking apparatus (100),

Wherein the combustion chamber (31) is provided with a smoke exhaust channel (3101), the smoke exhaust channel (3101) is used for exhausting smoke of the steam device (30), and the smoke exhaust channel (3101) is communicated with the lower space of the combustion chamber (31).

2. Cooking apparatus (100) according to claim 1, wherein the combustion chamber (31) is arranged in an up-down direction, the burner (32) is provided in an upper space of the combustion chamber (31), and high temperature flue gas generated by the burner (32) exchanges heat with the heat exchanging member (33) in a circulation process from top to bottom.

3. The cooking apparatus (100) according to claim 1, wherein at least a portion of the heat exchanging member (33) is provided within the combustion chamber (31) and is provided with a flue gas flow passage (3302), the flue gas flow passage (3302) being configured to be adapted for the passage of flue gas generated by a burner (32) and for exchanging heat with a fluid within the heat exchanging flow passage (3301).

4. A cooking apparatus (100) according to claim 3, wherein the combustion chamber (31) has a first portion and a second portion opposite to each other, the burner (32) is provided in the first portion, the second portion is connected with a smoke evacuation channel (3101), at least a portion of the heat exchanging member (33) is provided between the first portion and the second portion, and the smoke flow path (3302) communicates the first portion and the second portion.

5. A cooking apparatus (100) according to claim 3, wherein the first end of the flue gas flow channel (3302) is adapted to feed flue gas, the first end of the flue gas flow channel (3302) communicates with a portion of the combustion chamber (31) in which the burner (32) is arranged, and the first end of the flue gas flow channel (3302) is gradually retracted in the direction of the feed flue gas.

6. A cooking apparatus (100) according to claim 3, wherein the second end of the flue gas flow channel (3302) is adapted to discharge flue gas, the second end of the flue gas flow channel (3302) communicates with the flue gas channel (3101) of the combustion chamber (31), and the second end of the flue gas flow channel (3302) is gradually flared in the direction of the discharge flue gas.

7. The cooking apparatus (100) according to claim 1, wherein the heat exchanging member (33) comprises a housing (331 b) and a smoke tube (332 b), the housing (331 b) is internally provided with a heat exchanging flow channel (3301), the smoke tube (332 b) is arranged through the housing (331 b), and two ends of the smoke tube are respectively communicated with two opposite sides of the housing (331 b).

8. The cooking apparatus (100) according to claim 7, wherein the opposite side walls of the housing (331 b) are respectively provided with a through hole, and both end circumferences of the housing (331 b) are respectively connected to the opposite side walls and to the through hole circumferences of the corresponding positions.

9. A cooking apparatus (100) according to claim 3, wherein the flue gas flow channel (3302) comprises a plurality of said flue gas flow channels (3302) being configured as a mesh in a cross section perpendicular to the flue gas flow direction in the combustion chamber (31).

10. A cooking apparatus (100) according to claim 3, wherein the flue gas flow channel (3302) is in the form of an elongated shape extending in the direction of the exhaust gas in the combustion chamber (31), the flue gas flow channel (3302) being configured as a straight channel, a curved channel or a broken line channel.

11. A cooking apparatus (100) according to claim 3, wherein the ratio of the total area of the flue gas flow channels (3302) to the total area of the heat exchange element (33) in a cross section perpendicular to the flue gas flow direction in the combustion chamber (31) is in the range of 0.1 to 0.9.

12. A cooking apparatus (100) according to claim 3, wherein the arrangement density of the flue gas flow channels (3302) in a cross section perpendicular to the flue gas flow direction in the combustion chamber (31) is not less than 0.01/mm ² and not more than 1/mm ².