Steam cooking device

Abstract

The present invention belongs to the technical field of steam cooking equipment, and discloses a steam cooking equipment, including a box and a steam condensation reflux component; one end of the steam condensation reflux component is connected to the cavity of the box to separate water vapor from the steam discharged into the steam condensation reflux component, and the other end of the steam condensation reflux component is connected to the exhaust port of the box to discharge the gas after water vapor separation from the box, and the steam condensation reflux component guides the water after water vapor separation back into the cavity of the box. Compared with the prior art, the steam cooking equipment of the present invention not only recycles water vapor, but also effectively saves the use of water in the water tank of the steam cooking equipment, improves its utilization rate, prolongs the maximum use time of a single water addition, and solves the problem of large water consumption within a cycle; at the same time, it can also replenish hot steam for the inner cavity to avoid the problem of excessive reduction of steam in the inner cavity.

Description

Technical Field

[0001] The invention belongs to the technical field of steam cooking equipment, and in particular relates to a steam cooking equipment. Background Art

[0002] Existing steam cooking equipment, such as electric steamers, steam boxes, steam ovens, steam-oven combi machines, etc., mainly exhaust steam through direct exhaust ports. For example, the exhaust method is: the steam in the chamber enters the air duct through the air inlet nozzle set on the top wall of the air duct, and then is discharged from the front exhaust port under the action of the cross-flow fan. The above direct exhaust method has the following disadvantages: First, the water vapor cannot be recycled, resulting in a large amount of water consumption within the cycle, that is, under the premise of using the steam cooking equipment for the same time, the existing steam cooking equipment consumes a large amount of water; second, because the water vapor encounters the parts around the front exhaust port with a relatively low temperature during the discharge process, the water vapor will condense into water droplets, flow down along the outer side of the door body, and cause the cabinet and other household appliances to become damp and damaged; there is even a case where the directly discharged water vapor will produce odor, thereby affecting the kitchen environment. Summary of the invention

[0003] In view of this, in order to solve the problem that water vapor in the existing steam cooking equipment cannot be recycled, resulting in a large water consumption within a cycle, the present invention provides a steam cooking equipment.

[0004] The technical solution adopted by the present invention is a steam cooking device, including a box body and a steam condensation reflux component; one end of the steam condensation reflux component is connected to the cavity of the box body for separating water vapor from the steam discharged into the steam condensation reflux component, and the other end of the steam condensation reflux component is connected to the exhaust port of the box body for discharging the gas after water vapor separation from the box body, and the steam condensation reflux component guides the water after water vapor separation back into the cavity of the box body.

[0005] Preferably, the steam condensation reflux component includes an exhaust pipe; one end of the exhaust pipe is connected to the cavity of the box, and the other end is connected to the exhaust port of the box.

[0006] Preferably, the steam condensation reflux component further includes an end cover; an end of the exhaust pipe connected to the cavity of the box body is provided with an end cover.

[0007] Preferably, the steam condensation reflux component also includes an exhaust nozzle, an exhaust hole is formed in the exhaust nozzle, one end of the exhaust nozzle is covered with an end cover, and the exhaust hole is connected to the exhaust pipe through the end cover.

[0008] Preferably, the surface of the end cover is coated with a heat-resistant insulating material.

[0009] Preferably, a plurality of vent holes are provided on the end cover.

[0010] Preferably, the air inlet of the steam condensation reflux component is connected to the cavity of the box, the air outlet of the steam condensation reflux component is connected to the air duct of the box, and the air duct is connected to the exhaust port of the box; the position of the air outlet of the steam condensation reflux component is higher than the position of the air inlet of the steam condensation reflux component.

[0011] Preferably, the exhaust port of the box is opened on the front side of the cavity of the box body and is arranged close to the door of the box body.

[0012] Preferably, the air inlet of the steam condensation reflux component is located on the side wall of the box, and the air outlet of the steam condensation reflux component is located on the top of the box.

[0013] Preferably, a groove is provided at the air guide plate of the air duct, and the groove is located below the air outlet of the steam condensation reflux component.

[0014] Compared with the prior art, the beneficial effects of the present invention using the above scheme are:

[0015] The water vapor of the steam cooking device of the present invention is discharged from the cavity of the box body and enters the steam condensation reflux component. Because the steam condensation reflux component of the present invention can separate the water vapor from the discharged steam, and can also discharge the gas after the water vapor separation from the box body, and guide the water after the water vapor separation back into the cavity of the box body, this not only recycles the water vapor, but also effectively saves the utilization of water in the water tank of the steam cooking device, improves its utilization rate, prolongs the maximum use time of a single water addition, and solves the problem of large water consumption within a cycle; at the same time, it can also replenish hot steam for the inner cavity to avoid the problem of excessive reduction of the steam amount in the inner cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of a steam cooking device provided by an embodiment of the present invention;

[0017] Figure 2 is a schematic structural diagram of a steam cooking device provided by an embodiment of the present invention with the top plate and the back plate removed;

[0018] Figure 3 It is a structural schematic diagram of a steam cooking device provided by an embodiment of the present invention with the top plate and the door body removed;

[0019] Figure 4 It is a structural schematic diagram of a steam condensation reflux component of a steam cooking device provided by an embodiment of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of an exhaust nozzle and an end cover of a steam condensation reflux assembly of a steam cooking device provided by an embodiment of the present invention after explosion;

[0021] Figure 6 yes Figure 5Schematic diagram of the assembly drawing;

[0022] In the figure: 1, box body; 2, steam condensation reflux assembly; 21, end cover; 22, exhaust pipe; 23, exhaust nozzle; 231, exhaust hole; 211, vent hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] This embodiment provides a steam cooking device, such as Figure 1-Figure 6 As shown, it includes a casing 1 and a steam condensation reflux component 2; one end of the steam condensation reflux component is connected to the cavity of the casing 1 for separating water vapor from the steam discharged into the steam condensation reflux component 2, and the other end of the steam condensation reflux component 2 is connected to the exhaust port of the casing 1 for discharging the gas after water vapor separation out of the casing 1, and the steam condensation reflux component 2 guides the water after water vapor separation back into the cavity of the casing 1.

[0025] When using the steam cooking device of this embodiment, the water vapor in the cavity of the box body 1 is discharged from the cavity of the box body and enters the steam condensation reflux component 2. Because the steam condensation reflux component 2 of this embodiment can separate the water vapor from the discharged steam, and can also discharge the gas after water vapor separation out of the box body, and can guide the water after water vapor separation back into the cavity of the box body, and the water returned to the cavity will be evaporated again under high temperature and converted into water vapor. In this way, the steam cooking device of this embodiment not only recycles the water vapor, but also effectively saves the use of water in the water tank of the steam cooking device, improves its utilization rate, extends the maximum use time of a single water addition, and solves the problem of large water consumption within a cycle; at the same time, it can also replenish hot steam for the inner cavity to avoid the problem of excessive reduction of steam in the inner cavity.

[0026] In a specific embodiment, the steam condensation reflux component 2 includes an exhaust pipe 22; one end of the exhaust pipe 22 is connected to the cavity of the box body 1, and the other end is connected to the exhaust port of the box body 1;

[0027] In this way, the water vapor discharged from the cavity of the box 1 will enter the exhaust pipe 22, pass through the exhaust pipe 22, and finally be discharged from the exhaust port of the box 1. Because there is a temperature difference between the exhaust pipe 22 and the box 1, and because the exhaust pipe 22 has a certain length, the water vapor will gradually condense during the flow in the exhaust pipe 22, and the water vapor separation will be achieved; and the water vapor that has not been condensed will follow the exhaust pipe 22 and enter the air duct of the steam cooking device, and finally be discharged from the exhaust port of the box 1; the condensed water will flow back to the cavity of the box 1 under the action of gravity, and because the temperature of the cavity is high, this part of the water flowing back will be evaporated again at high temperature to form steam, replenishing the amount of water vapor in the cavity, and avoiding the problem of excessive reduction of the amount of steam in the inner cavity; and it also serves the purpose of recycling the water vapor, effectively saving the use of water in the water tank of the steam cooking device, improving its utilization rate, extending the maximum use time of a single water addition, and solving the problem of large water consumption within a cycle.

[0028] In this embodiment, the exhaust pipe 22 is located outside the cavity of the housing 1 , which ensures that the temperature difference between the exhaust pipe 22 and the cavity of the housing 1 is large enough, thereby allowing water vapor to be fully condensed in the exhaust pipe 22 .

[0029] In a specific embodiment, the steam condensation reflux assembly 2 further includes an end cover 21; one end of the exhaust pipe 22 connected to the cavity of the box body 1 is provided with the end cover 21;

[0030] The water vapor in the cavity of the box body 1 first passes through the end cover 21 and then enters the exhaust pipe 22. Because there is a temperature difference between the end cover 21 and the cavity, and the water vapor has a larger contact area with the end cover 21 when passing through the end cover 21, the end cover 21 can also play a certain role in condensing the water vapor, that is, it plays a role in water vapor separation.

[0031] In this embodiment, the end cover 21 is located in the opening formed on the wall of the box body 1, and one end of the exhaust pipe 22 is connected to the end cover 21, so that when the water vapor is discharged to the outside, it first passes through the first water vapor separation of the end cover 21 to condense part of the water vapor; then, the water vapor that has passed the first water vapor separation passes through the second water vapor separation of the exhaust pipe 22 to condense the water vapor again. After these two water vapor separations, the gas discharged through the exhaust port of the box body 1 may contain very little water, which not only recycles the water vapor, but also effectively saves the use of water in the water tank of the steam cooking device, improves its utilization rate, prolongs the maximum use time of a single water addition, and solves the problem of large water consumption within a cycle; at the same time, it can also replenish hot steam for the inner cavity to avoid the problem of excessive reduction of steam in the inner cavity;

[0032] In addition, because the exhausted gas contains very little water vapor, a large amount of condensed water will not appear when the exhausted gas encounters the lower temperature air outside the box 1. This effectively avoids the problem of a large amount of condensed water flowing down along the door or box of the equipment to cause household appliances such as cabinets to become damp and damaged, thereby improving the kitchen environment.

[0033] In this embodiment, in order to improve the primary water vapor separation effect of the end cover 21, the surface of the end cover 21 is coated with a heat-resistant insulating material, which not only enables the end cover 21 to be used at high temperature for a long time, but also prevents the temperature of the end cover 21 from being too high, thereby making the temperature difference between the end cover 21 and the cavity of the box body 1 larger, ensuring that water vapor can be fully condensed when passing through the end cover 21.

[0034] In this embodiment, the high temperature resistant heat insulating material coated on the surface of the end cover 21 may be any existing high temperature resistant heat insulating material that can meet the requirements of this embodiment, for example, it may be a nano high temperature resistant heat insulating material;

[0035] In this embodiment, the base material of the end cap 21 is a metal mesh, that is, the end cap 21 of this embodiment is a cap-shaped structure prepared from a metal mesh, and the surface of the metal mesh has a hydrophobic coating formed by spraying a hydrophobic polymer material and sintering it. This can ensure the strength of the end cap 21, ensure that the end cap 21 is resistant to high temperatures, and also have a heat-insulating effect.

[0036] In a specific embodiment, the steam condensation reflux component 2 further includes an exhaust nozzle 23 , an exhaust hole 231 is formed in the exhaust nozzle 23 , one end cover of the exhaust nozzle 23 is covered with an end cover 21 , and the exhaust hole 231 is connected to the exhaust pipe 22 through the end cover 21 .

[0037] In actual use, if the end cover 21 is directly installed on the opening opened on the box wall of the box body 1, it may be difficult to install and have poor sealing. Therefore, the steam condensation reflux component 2 also includes an exhaust nozzle 23, so that the exhaust nozzle 23 can be plugged into the opening opened on the box wall of the box body 1, or threadedly connected to the opening opened on the box wall of the box body 1, which can well solve the problem of poor sealing. In addition, the end cover 21 and the exhaust nozzle 23 are convenient to install.

[0038] The water vapor discharged from the cavity of the box body 1 passes through the exhaust nozzle 23, the end cover 21 and the exhaust pipe 22 in sequence for water vapor separation, condensation and reflux, the gas is discharged from the box body 1, and part of the water vapor is condensed and flows back into the cavity, thereby increasing the steam content in the cavity, effectively saving the use of water in the water tank of the steam cooking equipment, improving its utilization rate, extending the maximum use time of a single water addition, and solving the problem of large water consumption within a cycle.

[0039] In a specific embodiment, a plurality of vent holes 211 are provided on the end cover 21; this can increase the contact area between the water vapor and the end cover 21, further reduce the heat of the water vapor, and better achieve water vapor separation.

[0040] In this embodiment, the end cover 21 is arranged close to the outer side of the wall of the box body 1, which plays a role in shielding and beautifying the exhaust nozzle 23, making the entire body of the steam cooking device more beautiful and elegant.

[0041] In a specific embodiment, the air inlet of the steam condensation reflux component 2 is connected to the cavity of the box body 1, the air outlet of the steam condensation reflux component 2 is connected to the air duct of the box body 1, and the air duct is connected to the exhaust port of the box body 1; the position of the air outlet of the steam condensation reflux component 2 is higher than the position of the air inlet of the steam condensation reflux component 2;

[0042] The water vapor in the cavity of the box 1 enters the steam condensation reflux component 2 through the air inlet of the steam condensation reflux component 2, and then enters the air duct of the box 1 through the air outlet of the steam condensation reflux component 2. Because there is wind in the air duct (provided by the cross-flow fan), the gas entering the air duct will quickly be discharged from the box 1 from the exhaust port connected to the air duct;

[0043] The position of the air outlet of the steam condensation reflux component 2 is designed to be higher than the position of the air inlet of the steam condensation reflux component 2. The purpose is to increase the distance between the air inlet of the steam condensation reflux component 2 and the air outlet of the steam condensation reflux component 2 as much as possible, that is, to increase the flow distance of the water vapor, so that the water vapor can be fully condensed and refluxed, thereby minimizing the water consumption within the cycle.

[0044] In a specific embodiment, the exhaust port of the box body 1 is opened on the front side of the cavity of the box body 1 and is arranged close to the door body of the box body 1; the exhaust port is opened on the front side of the cavity of the box body 1 to facilitate the diffusion of gas; close to the box body 1 is to increase the flow distance of the gas in the air duct, thereby increasing the flow time, so that the gas can also play a certain role in water vapor separation in the air duct, thereby reducing the chance of condensation of condensed water on the door body, so that the gas discharged from the exhaust port can be smoothly blown to the exhaust groove on the door body and directly discharged into the indoor air.

[0045] In a specific embodiment, the air inlet of the steam condensation reflux component 2 is located on the side wall of the box body 1, and the air outlet of the steam condensation reflux component 2 is located at the top of the box body 2. This is done on the one hand to increase the distance between the air inlet of the steam condensation reflux component 2 and the air outlet of the steam condensation reflux component 2, and on the other hand, because the exhaust duct of existing steam cooking equipment, such as electric steamers, steam boxes, steam ovens, steam-bake-in-one machines, etc., is usually arranged at the top of the box body. In this embodiment, the air outlet of the steam condensation reflux component 2 is located at the top of the box body 2, so that the gas separated from the water vapor can be discharged from the cavity of the box body 1 by using the exhaust duct of the existing steam cooking equipment.

[0046] In a specific embodiment, a groove is provided at the air guide plate of the air duct, and the groove is located below the air outlet of the steam condensation reflux component 2. This is because the gas after water vapor separation may still contain a small amount of water vapor. After this part of the water vapor is discharged from the steam condensation reflux component 2, there is a temperature difference between the temperature outside the steam condensation reflux component 2 and the temperature of the steam condensation reflux component 2. Because the existing steam cooking equipment uses a cross-flow fan to discharge the water vapor discharged into the air duct out of the box, when the water vapor leaves the steam condensation reflux component 2, it will be affected by the cross-flow fan, so that the temperature drops sharply. At this time, the steam condensation reflux component 2 flows out with the gas. The water vapor in the steam reflux component 2 will condense again. If this part of condensed water is not processed, the condensed water may flow down along the box body and pollute the kitchen cabinet. Therefore, in this embodiment, a groove is provided at the air guide plate of the air duct, and the groove is located below the air outlet of the steam condensation reflux component 2. The groove will collect the condensed water to prevent the water from flowing down along the box body and polluting the cabinet, etc. In addition, because the temperature of the steam cooking equipment body is relatively high, that is, the temperature of the groove is relatively high, the water can be evaporated again, and it also plays a role in lowering the temperature of the body, that is, the groove plays a role in water vapor separation again.

[0047] In a specific embodiment, an evaporation plate is arranged in the cavity of the housing 1, and the evaporation plate is used to evaporate water twice or multiple times, which effectively saves the use of water in the water tank of the equipment, improves its utilization rate, and prolongs the maximum use time of a single water addition.

[0048] The steam cooking device of the present embodiment may be an existing device that uses steam to cook food, such as an electric steamer, a steam box, a steam oven, and a steam-oven combination machine.

[0049] Working process:

[0050] When the user starts the steam cooking device, the cavity of the box body 1 is filled with water vapor. To ensure safety, the water vapor will enter the exhaust nozzle 23 and flow into the exhaust pipe 22 through the end cover 21 covering one end of the exhaust nozzle 23. Because the temperature of the end cover 21 is lower than the temperature of the water vapor, especially the end cover 21 coated with heat-resistant insulation material, its temperature is even lower than the temperature of the water vapor. Therefore, when the water vapor passes through the end cover 21, it is partially condensed, realizing the first water vapor separation.

[0051] Because the air outlet of the steam condensation reflux component 2 is located at the top of the box body 2, and the air inlet of the steam condensation reflux component 2 is located on the side wall of the box body 1, that is, the exhaust nozzle 23 is located on the side wall of the box body 1, and the air outlet of the exhaust pipe 22 is located at the top of the box body 1, so the length of the exhaust pipe 22 is long enough, and because the exhaust pipe 22 is located outside the cavity of the box body 1, the temperature of the exhaust pipe 22 is relatively low, then the water vapor that has undergone the first water vapor separation will be gradually condensed again when passing through the exhaust pipe 22, thus achieving the second water vapor separation;

[0052] The water vapor flowing out of the exhaust pipe 22 will contain a small amount of water vapor. When this part of the water vapor flows out of the exhaust pipe 22, it will be condensed again, and the condensed small water droplets will fall into the groove formed by the air duct guide plate under the action of gravity, and evaporated by the heat of the fuselage itself, which plays a role in reducing the heat of the fuselage;

[0053] It should be noted that the water condensed after the first water vapor separation and the second water vapor separation will return to the cavity of the box 1 under the action of gravity, and will be evaporated again by the high temperature of the cavity. This not only recycles the water vapor, but also effectively saves the use of water in the water tank of the steam cooking equipment, improves its utilization rate, extends the maximum use time of a single water addition, and solves the problem of large water consumption within a cycle; at the same time, it can also replenish hot steam for the cavity to avoid the problem of excessive reduction in the amount of steam in the cavity.

[0054] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A steam cooking device, characterized in that: It comprises a housing (1) and a steam condensation reflux component (2); one end of the steam condensation reflux component (2) is connected to the cavity of the housing (1) for separating water vapor from steam discharged into the steam condensation reflux component (2); the other end of the steam condensation reflux component (2) is connected to the exhaust port of the housing (1) for discharging gas after water vapor separation from the housing (1); and the steam condensation reflux component (2) guides water after water vapor separation back into the cavity of the housing (1); The steam condensation reflux component (2) comprises an exhaust pipe (22); one end of the exhaust pipe (22) is connected to the cavity of the box (1), and the other end is connected to the exhaust port of the box (1); The steam condensation reflux assembly (2) further comprises an end cover (21); one end of the exhaust pipe (22) connected to the cavity of the housing (1) is provided with the end cover (21); The surface of the end cover (21) is coated with a heat-resistant insulating material; The steam condensation reflux component (2) further comprises an exhaust nozzle (23), an exhaust hole (231) being formed in the exhaust nozzle (23), an end cover of the exhaust nozzle (23) being sleeved with the end cover (21), and the exhaust hole (231) being connected to the exhaust pipe (22) via the end cover (21).

2. The steam cooking device according to claim 1, characterized in that: The end cover (21) is provided with a plurality of vent holes (211).

3. The steam cooking device according to claim 1 or 2, characterized in that: The air inlet of the steam condensation reflux component (2) is connected to the cavity of the housing (1), the air outlet of the steam condensation reflux component (2) is connected to the air duct of the housing (1), and the air duct is connected to the exhaust port of the housing (1); the position of the air outlet of the steam condensation reflux component (2) is higher than the position of the air inlet of the steam condensation reflux component (2).

4. The steam cooking device according to claim 3, characterized in that: The exhaust port of the box body (1) is opened on the front side of the cavity of the box body (1) and is arranged close to the door body of the box body (1).

5. The steam cooking device according to claim 3, characterized in that: The air inlet of the steam condensation reflux component (2) is located on the side wall of the box body (1), and the air outlet of the steam condensation reflux component (2) is located on the top of the box body (1).

6. The steam cooking device according to claim 3, characterized in that: A groove is provided on the air guide plate of the air duct, and the groove is located below the air outlet of the steam condensation reflux component (2).

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