CN219538077U - Steam externally-discharged condensing structure and cooking equipment with steaming function - Google Patents

Abstract

The utility model relates to a steam externally-discharging condensation structure and cooking equipment with a steaming function, which comprises a cooking inner container with an exhaust port, wherein an exhaust channel is arranged on the cooking inner container, and the exhaust channel is provided with an exhaust fan. The utility model can reduce the amount of the discharged steam, thereby improving the condensing efficiency of the steam and further efficiently reducing the amount of the discharged steam.

Description

Steam externally-discharged condensing structure and cooking equipment with steaming function

Technical Field

The utility model relates to the field of cooking equipment, in particular to a steam discharging and condensing structure and cooking equipment with a steaming function.

Background

In the cooking process of the existing cooking equipment with steaming functions such as a steaming box and a steaming and baking integrated machine, the amount of discharged steam is large, particularly in a preheating stage, and because the power of a steam generator is full-power, the amount of discharged steam is large compared with that in a heat preservation stage, on one hand, more condensed water is caused on the outer side of a door body, and on the other hand, kitchen is caused to diffuse steam, particularly in winter, so that poor sensory experience is caused to a user.

Steam condensation is a main means for reducing the amount of discharged steam, and mainly comprises two modes of air cooling and water cooling, wherein the air cooling realizes the steam condensation through heat exchange between cold air and steam, and the water cooling realizes the steam condensation through heat exchange between cold water and steam. For example, chinese patent No. ZL201820926641.3 (grant publication No. CN 209153245U) discloses a steam condensing structure for a steam box, chinese patent No. ZL202010131634.6 (grant publication No. CN 111329329B) discloses a steam discharging system and a cooking appliance having the same. However, the conventional air cooling method mainly has the following problems: the outside cold air generally exchanges heat with the steam by way of natural flow, resulting in inefficient condensation.

Disclosure of Invention

The first technical problem to be solved by the utility model is to provide a steam discharging condensation structure capable of reducing the amount of discharged steam.

The second technical problem to be solved by the utility model is to provide a steam discharging and condensing structure which can reduce the amount of discharged steam and has high steam condensing efficiency.

The third technical problem to be solved by the utility model is to provide a cooking device with the steam discharging and condensing structure.

The utility model solves at least one of the technical problems by adopting the following technical proposal: the steam discharging and condensing structure comprises a cooking inner container with an exhaust port, an exhaust passage is arranged on the cooking inner container and provided with an exhaust fan, and is characterized by also comprising a condenser, a first air inlet of the exhaust fan is covered by the condenser, a condensing cavity with a condensing air inlet and a condensing air outlet and a cooling passage capable of heat exchange with steam in the condensing cavity are respectively arranged in the condenser,

wherein, the condensing air inlet of the condensing cavity is in fluid communication with the air outlet of the cooking liner, the condensing air outlet is in fluid communication with the air inlet of the air exhaust channel, the air inlet port of the cooling channel is in fluid communication with the outside, and the air outlet port is in fluid communication with the first air inlet of the air exhaust fan.

Further, the exhaust fan is horizontally arranged on the air inlet of the exhaust channel, the first air inlet of the exhaust fan is positioned at the top end of the exhaust fan, the condenser is arranged on the first air inlet, the condensation air inlet of the condenser is communicated with the air outlet of the cooking inner container through the air inlet pipe, and the condensation air outlet is communicated with the air inlet of the exhaust channel through the air outlet pipe. The air inlet pipe is used for realizing the air channel communication between the condensation air inlet and the air outlet, and condensed water formed in the condensation cavity flows back to the cooking liner from the upper edge to the lower edge of the air inlet pipe, so that the condensed water is recycled.

Further, the condenser comprises a shell horizontally covered on the first air inlet of the exhaust fan, the inner cavity of the shell forms the condensation cavity, the condensation air inlet and the condensation air outlet of the condensation cavity are respectively arranged on the shell,

and the cooling pipe is vertically arranged in the shell in a penetrating way, the inner cavity of the cooling pipe forms the cooling channel, and the air inlet port and the air outlet port of the cooling channel are respectively formed on the top surface and the bottom surface of the shell. Thus, the cold air can smoothly flow into the cooling channel from top to bottom, and the cooling channel is arranged in the condensing cavity, so that the cold air in the cooling channel can fully exchange heat with the steam in the condensing cavity.

Further, the cooling pipe is made of heat conducting materials, so that cold air in the cooling channel can be fully subjected to heat exchange with steam in the condensing cavity.

Further, at least two cooling pipes are arranged in the shell at intervals. The steam flow entering the condensing chamber can be split and decelerated under the blocking of the cooling pipes, so that the steam flow can be sufficiently condensed by heat exchange with the cold air in the cooling channels.

Further, the shell is cylindrical in shape, the condensation air inlet and the condensation air outlet are respectively formed in the side walls of the two sides of the shell, and the cooling pipe is arranged along the axial direction of the shell. Therefore, the flow direction of the steam in the condensation cavity is approximately perpendicular to the flow direction of the cold air in each cooling channel, and heat exchange can be carried out more fully between the steam and the cold air in each cooling channel.

Further, the condensation air inlet and the condensation air outlet are respectively arranged along the tangential direction of the cross section of the shell. Therefore, the movement potential energy of the steam flow in the condensing cavity can be increased, and the condensing efficiency is fully improved under the condition of ensuring the condensing effect by matching with the blocking and shunting effects of each cooling pipe.

Further, the condensing air inlet and the condensing air outlet are arranged in the same direction, and the distance between the condensing air inlet and the condensing air outlet is equal to the diameter of the shell, so that the residence time of the steam in the condensing cavity can be prolonged, and the steam can be sufficiently condensed in the condensing cavity.

Further, the condensation air inlet and the condensation air outlet are arranged in a staggered mode up and down along the axial direction of the shell, and the height of the condensation air inlet is lower than that of the condensation air outlet. The gas after the condensation treatment can be blown out from the condensation gas outlet along the potential, and liquid drops formed by condensation drop and are converged in the condensation cavity, so that the gas separation effect is achieved, and the reduction of the amount of discharged steam is facilitated.

Further, the exhaust fan comprises a horizontally arranged volute cover and an impeller arranged in the volute cover, a first air inlet of the exhaust fan is formed in the top wall of the volute cover, a cylindrical mounting seat is arranged on the top surface of the volute cover on the outer Zhou Shuxiang of the first air inlet in a surrounding mode, a cylindrical base is vertically arranged on the bottom surface of the shell of the condenser in a protruding mode, the base is arranged on the periphery of each air outlet in a surrounding mode, the size of the base is matched with that of the mounting seat, and the base is placed on the mounting seat in the circumferential direction to form an air inlet cavity in a surrounding mode. Therefore, the condenser can be firmly arranged on the exhaust fan, and smooth air inlet of the exhaust fan is ensured by forming the air inlet cavity.

Further, the base is provided with air inlet holes at intervals along the circumferential direction. Through set up the fresh air inlet on the base, on the one hand can further promote condensation effect and the condensation efficiency to the steam in the condensation chamber, on the other hand also can guarantee exhaust fan's intake better.

The technical scheme adopted for further solving the third technical problem is as follows: a cooking apparatus with a steaming function, characterized by having a steam-discharging condensing structure as described above.

Compared with the prior art, the utility model has the advantages that: and meanwhile, in the working state of the exhaust fan, external cold air enters the cooling channel through the air inlet port and exchanges heat with steam in the condensing cavity, the steam is cooled and condensed, so that the amount of discharged steam is reduced, the condition that the discharged steam is excessive to influence the use experience of a user is avoided, and the exhaust fan can drive the cold air to enter the cooling channel simultaneously under the condition of discharging the driving gas, thereby improving the condensing efficiency of the steam and then efficiently reducing the amount of discharged steam.

Drawings

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

fig. 2 is a cross-sectional view of a cooking apparatus according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a partially exploded view of a cooking apparatus according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a condenser according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the structure of FIG. 5 in another direction;

FIG. 7 is a cross-sectional view of a condenser in an embodiment of the present utility model;

fig. 8 is a cross-sectional view of a condenser in another direction in an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for purposes of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and because the disclosed embodiments of the present utility model may be arranged in different orientations, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to orientations opposite or coincident with the direction of gravity. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

As shown in fig. 1 to 8, a cooking apparatus with steaming function, in this embodiment, the cooking apparatus is specifically a steaming and baking integrated machine, which includes a steam-discharging condensation structure, the steam-discharging condensation structure includes a cooking liner 1 with an exhaust port 11, an exhaust channel 30 is disposed on the cooking liner 1, and the exhaust channel 30 has an exhaust fan 4. Further, the above-mentioned vapor-discharge condensing structure further includes a condenser 5, and a condensing chamber 500 having a condensing air inlet 501 and a condensing air outlet 502 and a cooling channel 510 capable of heat exchanging with vapor in the condensing chamber 500 are provided in the condenser 5, respectively. Wherein, the condensation air inlet 501 of the condensation chamber 500 is in fluid communication with the air outlet 11 of the cooking liner 1, the condensation air outlet 502 is in fluid communication with the air inlet 31 of the air exhaust channel 30, the air inlet 511 of the cooling channel 510 is in fluid communication with the outside, and the air outlet 512 is in fluid communication with the first air inlet 411 of the air exhaust fan 4.

In the working state of the cooking device in the utility model, the redundant steam in the cooking liner 1 enters the condensation cavity 500 of the condenser 5 through the exhaust port 11, meanwhile, in the working state of the exhaust fan 4, the external cold air enters the cooling channel 510 through the air inlet port 511 and exchanges heat with the steam in the condensation cavity 500, and the steam is cooled to be condensed, so that the amount of the discharged steam is reduced, and the influence on the use experience of a user caused by excessive discharged steam is avoided, wherein the exhaust fan 4 can simultaneously drive the cold air into the cooling channel 510 under the condition of discharging the driving gas, so that the condensing efficiency of the steam is improved, and the amount of the discharged steam can be reduced better.

Specifically, in this embodiment, an upper mounting plate 2 is horizontally disposed above the cooking liner 1, an air deflector 3 is covered on the upper surface of the upper mounting plate 2 to form the air exhaust channel 30, the air exhaust fan 4 is horizontally mounted on an air inlet of the air exhaust channel 30, and the air inlet 31 is opened on a top wall of the air deflector 3. Further, the first air inlet 411 is located at the top end of the air exhaust fan 4, the condenser 5 is installed above the first air inlet 411, the condensation air inlet 501 of the condenser 5 is communicated with the air exhaust port 11 of the cooking liner 1 through the air inlet pipe 6, and the condensation air outlet 502 is communicated with the air inlet 31 of the air exhaust channel 30 through the air outlet pipe 7. Not only can the air passage communication between the condensation air inlet 501 and the air outlet 11 be realized through the air inlet pipe 6, but also the condensed water formed in the condensation cavity 500 can flow back into the cooking liner 1 from top to bottom along the air inlet pipe 6, so that the recycling of the condensed water is realized.

Further, the condenser 5 includes a housing 50 horizontally covering the first air inlet 411 of the exhaust fan 4, the inner cavity of the housing 50 forms the condensation chamber 500, and the condensation air inlet 501 and the condensation air outlet 502 of the condensation chamber 500 are respectively opened on the housing 50. The cooling pipe 51 is vertically inserted into the housing 50, the inner cavity of the cooling pipe 51 forms the cooling channel 510, and the air inlet port 511 and the air outlet port 512 of the cooling channel 510 are formed on the top surface and the bottom surface of the housing 50, respectively. So that cool air smoothly flows into the cooling passage 510 from top to bottom, and enters the cooling passage 510 to be disposed in the condensation chamber 500, thereby enabling the cool air in the cooling passage 510 to sufficiently exchange heat with the steam in the condensation chamber 500.

Preferably, the cooling pipe 51 is made of a heat conductive material, so that the cold air in the cooling channel 510 is sufficiently heat-exchanged with the steam in the condensation chamber 500, for example, a metal material, aluminum, stainless steel, etc. Further preferably, the housing 50 may be made of the same material as the cooling tube 51, so that the vapor in the condensation chamber 500 can directly exchange heat with the cold air outside through the housing 50 at the same time, thereby further improving the condensation effect. Further, it is preferable that at least two cooling pipes 51 are provided in the housing 50 at intervals. The vapor flow thus entering the condensation chamber 500 can be split and decelerated by the blocking of the cooling pipes 51, so that it can be sufficiently condensed by heat exchange with the cool air in the cooling channels 510.

Specifically, in the present embodiment, the housing 50 has a cylindrical shape, the condensation air inlet 501 and the condensation air outlet 502 are respectively formed on two side walls of the housing 50, and the cooling pipe 51 is disposed along an axial direction of the housing 50. This allows the flow direction of the vapor in the condensation chamber 500 to be substantially perpendicular to the flow direction of the cool air in each cooling passage 510, and thus allows the heat exchange between the two to occur more sufficiently. Further, the condensation air inlet 501 and the condensation air outlet 502 are respectively disposed along the tangential direction of the cross section of the housing 50, so that the movement potential energy of the vapor flow in the condensation chamber 500 can be increased, and the condensation efficiency can be fully improved under the condition of ensuring the condensation effect by matching with the blocking and splitting action of each cooling pipe 51. Preferably, the condensing inlet 501 and the condensing outlet 502 are disposed in the same direction with a space therebetween equal to the diameter of the housing 50, so that the residence time of the steam in the condensing chamber 500 can be extended to allow the steam to be sufficiently condensed in the condensing chamber 500. Further preferably, the condensation air inlet 501 and the condensation air outlet 502 are staggered up and down along the axial direction of the housing 50, and the height of the condensation air inlet 501 is lower than that of the condensation air outlet 502. The gas after condensation treatment can be blown out from the condensation gas outlet 502 along the potential, and droplets formed by condensation drop and are converged in the condensation cavity 500, so that the gas separation function is realized, and the amount of discharged steam is further reduced.

Further, in the present embodiment, the exhaust fan 4 includes a horizontally disposed volute casing 41 and an impeller 42, the volute casing 41 and the upper surface of the upper mounting plate 2 define a volute chamber 410, and the impeller 42 is eccentrically mounted in the volute chamber 410. The top wall of the volute casing 41 is provided with a first air inlet 411 of the exhaust fan 4, and a cylindrical mounting seat 412 is arranged on the top surface of the volute casing 41 around the outer Zhou Shuxiang of the first air inlet 411, and the mounting seat 412 and the first air inlet 411 are concentrically arranged. Meanwhile, a cylindrical base 52 is vertically protruded on the bottom surface of the housing 50 of the condenser 5, the base 52 is enclosed on the periphery of each air outlet 512, and is centered on the central axis of the housing 50, and the size of the base 52 is matched with the mounting seat 412, and is placed on the mounting seat 412 along the circumferential direction to enclose an air inlet cavity 53 up and down, so that the condenser 5 can be stably arranged on the exhaust fan 4, and smooth air inlet of the exhaust fan 4 is ensured by forming the air inlet cavity 53. Specifically, the outer peripheral surface of the base 52 is provided with a radially extending mounting rim 522 protruding in the circumferential direction, and the mounting rim 522 is placed on the top edge of the mounting seat 412 in the circumferential direction. Preferably, the base 52 is provided with air inlet holes 521 at intervals along the circumferential direction. By providing the air inlet 521 on the base 52, on the one hand, the condensing effect and condensing efficiency of the steam in the condensing chamber 500 can be further improved, and on the other hand, the air inlet of the exhaust fan 4 can be better ensured.

The term "fluid communication" as used herein refers to a spatial positional relationship between two members or portions, hereinafter collectively referred to as a first portion and a second portion, respectively, that is, a fluid gas, a liquid, or a mixture of both can flow along a flow path from the first portion to the second portion, or can be directly communicated between the first portion and the second portion, or can be indirectly communicated between the first portion and the second portion through at least one third member, which may be a fluid passage such as a pipe, a channel, a conduit, a flow guide, a hole, a groove, or the like, or can be a chamber allowing a fluid to flow therethrough, or a combination thereof.

Claims (12)

1. The steam externally-discharging condensing structure comprises a cooking inner container (1) with an exhaust port (11), an exhaust channel (30) is arranged on the cooking inner container (1), the exhaust channel (30) is provided with an exhaust fan (4), and is characterized in that,

the condenser (5) is covered on the first air inlet (411) of the exhaust fan (4), a condensing cavity (500) with a condensing air inlet (501) and a condensing air outlet (502) and a cooling channel (510) which can exchange heat with steam in the condensing cavity (500) are respectively arranged in the condenser (5),

wherein, the condensing air inlet (501) of the condensing cavity (500) is in fluid communication with the air outlet (11) of the cooking liner (1), the condensing air outlet (502) is in fluid communication with the air inlet (31) of the air outlet channel (30), the air inlet port (511) of the cooling channel (510) is in fluid communication with the outside, and the air outlet port (512) is in fluid communication with the first air inlet (411) of the air outlet fan (4).

2. The steam-discharging condensing structure according to claim 1, characterized in that the exhaust fan (4) is horizontally installed on the air inlet of the exhaust passage (30), the first air inlet (411) of the exhaust fan (4) is located at the top end of the exhaust fan (4), the condenser (5) is installed above the first air inlet (411), the condensing air inlet (501) of the condenser (5) is communicated with the air outlet (11) of the cooking liner (1) through the air inlet pipe (6), and the condensing air outlet (502) is communicated with the air inlet (31) of the exhaust passage (30) through the air outlet pipe (7).

3. The vapor-evacuation condensation structure according to claim 2, wherein said condenser (5) comprises a housing (50) horizontally covering said first air inlet (411) of said air-evacuation fan (4), the inner cavity of said housing (50) constitutes said condensation chamber (500), and the condensation air inlet (501) and the condensation air outlet (502) of said condensation chamber (500) are respectively provided on said housing (50),

and, the cooling tube (51) is arranged in the shell (50) in a penetrating way up and down, the inner cavity of the cooling tube (51) forms the cooling channel (510), and the air inlet port (511) and the air outlet port (512) of the cooling channel (510) are respectively formed on the top surface and the bottom surface of the shell (50).

4. A vapor-evacuation condensation structure according to claim 3, wherein said cooling tube (51) is of a heat conducting material.

5. A vapor-evacuation condensation structure according to claim 3, wherein said cooling tubes (51) are at least two and are arranged at intervals in said housing (50).

6. The vapor-evacuation condensation structure according to any one of claims 3 to 5, wherein said housing (50) has a cylindrical outer shape, said condensation air inlet (501) and said condensation air outlet (502) are provided on both side walls of said housing (50), respectively, and said cooling pipe (51) is provided along an axial direction of said housing (50).

7. The vapor-evacuation condensation structure according to claim 6, wherein said condensation air inlet (501) and said condensation air outlet (502) are respectively provided along a tangential direction of a cross section of said housing (50).

8. The vapor-evacuation condensation structure according to claim 7, wherein a distance between said condensation inlet (501) and said condensation outlet (502) is equal to a diameter of said housing (50).

9. The steam discharge condensation structure according to claim 7, wherein the condensation air inlet (501) and the condensation air outlet (502) are staggered up and down along the axial direction of the shell (50), and the height of the condensation air inlet (501) is lower than that of the condensation air outlet (502).

10. The steam-discharging condensing structure according to claim 6, characterized in that the exhaust fan (4) comprises a horizontally arranged volute casing (41) and an impeller (42) installed in the volute casing (41), a first air inlet (411) of the exhaust fan (4) is formed in the top wall of the volute casing (41), a cylindrical mounting seat (412) is arranged on the top surface of the volute casing (41) around the outer periphery Zhou Shuxiang of the first air inlet (411), a cylindrical base (52) is vertically arranged on the bottom surface of the shell (50) of the condenser (5) in a protruding mode, the base (52) is arranged around the periphery of each air outlet port (512), the size of the base (52) is matched with that of the mounting seat (412), and the base is circumferentially placed on the mounting seat (412) to form an air inlet cavity (53).

11. The vapor-evacuation condensation structure according to claim 10, wherein said base (52) is provided with air inlet openings (521) circumferentially spaced apart.

12. Cooking apparatus with steaming function, characterized by having a steam-vented condensing structure according to any one of claims 1 to 11.