CN107581916B - Steam valve and food heating device with same - Google Patents

Steam valve and food heating device with same Download PDF

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Publication number
CN107581916B
CN107581916B CN201711026757.8A CN201711026757A CN107581916B CN 107581916 B CN107581916 B CN 107581916B CN 201711026757 A CN201711026757 A CN 201711026757A CN 107581916 B CN107581916 B CN 107581916B
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valve
steam
flow
valve seat
cavity
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CN107581916A (en
Inventor
陈亮
高塬贵
陈冬冬
李锦彬
陈伟
胡玉新
潘泽勇
蔡文超
李振合
成灿明
钱宗华
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The invention provides a steam valve and a food heating device with the same, wherein the steam valve comprises: a valve seat (10), wherein a plurality of air inlets (11) are formed in the valve seat (10) at intervals; the valve cover (20), valve cover (20) are established on disk seat (10) and enclose into the valve pocket with disk seat (10), offer on valve cover (20) with the gas vent (21) of valve pocket intercommunication, be equipped with in the valve pocket with each air inlet (11) a plurality of air current passageway of intercommunication one-to-one, the air current egress opening in a plurality of air current passageway is the angle setting of striking with broken bubble each other. The technical scheme of the invention effectively solves the problems of complex structure and difficult processing of the steam valve caused by independently arranging the foam breaking structure in the valve cavity in the prior art.

Description

Steam valve and food heating device with same
Technical Field
The invention relates to the technical field of household appliances, in particular to a steam valve and a food heating device with the steam valve.
Background
With the improvement of life quality of people, higher requirements are put forward on the performance of household appliances such as electric cookers and the like, manufacturers compete more strongly, and the improvement and the change of the requirements of the electric cookers are mainly embodied in that the requirements of the electric cookers are over-hard, and the cooked rice has good taste so as to meet the requirements of masses.
In the production design process of the electric rice cooker, the design of an inner pot and a coating, the heating uniformity, the heating control and the like are mainly improved, but the design of a steam valve is also an important ring, and the steam valve is mainly used for exhausting and removing bubbles in the rice cooking process.
In the prior art, a steam valve adopts a multiple-inlet single-outlet mode, for example, in patent document CN206239191U, the steam valve is provided with a valve seat and a valve cover connected with the valve seat, the valve seat and the valve cover are connected to form a valve cavity, the valve cavity is provided with a plurality of steam inlets and a steam outlet, the steam inlets are all communicated with the steam outlet, the steam inlets are arranged in parallel, and no mutual impact or too small impact force exists between the steam, so that a foam breaking structure is required to be additionally arranged in the valve cavity, the foam breaking structure comprises a foam breaking cavity and a foam breaking piece which is arranged in the foam breaking cavity in a reciprocating manner, the foam breaking cavity is provided with an air inlet and a steam outlet, the steam inlets of the foam breaking cavity are the air inlets of the foam breaking cavity, and the steam outlets of the foam breaking cavity are communicated with the steam outlet. When the steam bubbles enter the steam inlet of the steam valve, the steam bubbles enter the foam breaking structure immediately, the foam breaking piece moves under the action of the thrust of the foam to reach a certain position of the foam breaking cavity, so that large foam passes through a gap between the foam breaking piece and the peripheral wall of the foam breaking cavity, and meanwhile, the large foam is broken due to the rolling friction force of the foam breaking piece. The steam valve has the following defects:
1. the bubble breaking structure is required to be arranged in the valve cavity independently, the structure of the steam valve is complex, and the processing is difficult;
2. part of hot steam enters a valve cavity between a steam outlet and a steam outlet after passing through the bubble breaking structure and is condensed into water drops, and the water drops cannot flow back into the boiler in the part of the valve cavity, so that the backflow effect is poor;
3. the accumulated water in the valve cavity below the steam outlet is easy to flow to the workbench surface through the steam outlet after the cover is opened.
Disclosure of Invention
The invention mainly aims to provide a steam valve and a food heating device with the steam valve, so as to solve the problems of complex structure and difficult processing of the steam valve caused by independently arranging a foam breaking structure in a valve cavity in the prior art.
To achieve the above object, the present invention provides a steam valve comprising: the valve seat is provided with a plurality of air inlets at intervals; the valve cover is arranged on the valve seat and surrounds the valve seat into a valve cavity, exhaust ports communicated with the valve cavity are formed in the valve cover, a plurality of air flow channels communicated with the air inlets in a one-to-one correspondence mode are arranged in the valve cavity, and air flow outlets in the air flow channels are arranged at an angle of mutually impacting to crush bubbles.
Further, the air flow outlets in the plurality of air flow passages are disposed toward the center of the valve seat, or the air flow outlets in the plurality of air flow passages are disposed eccentrically with respect to the center of the valve seat and away from the exhaust port.
Further, a first flow blocking structure is arranged in the airflow channel and used for slowing down the flow speed of the airflow.
Further, the first flow blocking structure is formed on the valve cover and is a plurality of first flow blocking ribs which are sequentially and alternately arranged along the length of the outflow direction of the air flow.
Further, a reflux hole is formed in the bottom wall of the valve seat, a plurality of airflow channels are arranged around the reflux hole, and a flow guiding structure for guiding condensed water to the reflux hole is arranged on the inner side wall of the valve seat.
Further, a reflow pad is installed at the reflow hole.
Further, the valve seat comprises an outer cylinder body and an inner cylinder body which is arranged in the outer cylinder body and the lower end of which is closed, the cylinder wall of the inner cylinder body is funnel-shaped, a backflow hole is formed in the cylinder bottom of the inner cylinder body, and the diversion structure is a diversion surface formed by the inner circumferential surface of the inner cylinder body.
Further, a second flow blocking structure is arranged between the airflow outlet and the exhaust port, the valve cavity is divided into an inner cavity and an outer cavity by the second flow blocking structure, the inner cavity is communicated with the airflow channel, the outer cavity is communicated with the exhaust port, and a flow guiding opening which is communicated with the inner cavity and the outer cavity is arranged on the second flow blocking structure and used for guiding condensed water in the outer cavity to the backflow hole.
Further, the second flow blocking structure is an arc-shaped second flow blocking rib.
Further, a distance is arranged between the exhaust port and the side wall of the valve cavity, and the valve cavity is used for storing condensed water after the cover is opened and positioned below the exhaust port.
Further, a third flow blocking structure extending into the air inlet from the upper side of the air inlet is arranged on the inner side wall of the valve seat.
Further, the side wall of the valve seat is provided with a steam inlet structure which is arranged corresponding to each air inlet, the steam inlet structure is provided with a steam inlet channel communicated with the air inlet, and one end of the steam inlet channel, which is far away from the air inlet, forms a steam inlet.
Further, the steam inlet is circular or D-shaped.
Further, two first ribs extending to the valve cover and oppositely arranged are arranged on the inner side wall of the valve seat, two second ribs extending to the valve seat and oppositely arranged are arranged on the inner top wall of the valve cover, and the two second ribs and the two first ribs are respectively abutted and enclosed into each air flow channel.
Further, the number of the airflow channels is two, and two pairs of second ribs arranged on the valve cover are correspondingly connected through the connecting flow blocking ribs.
The invention also provides a food heating device which comprises the steam valve.
The technical scheme of the invention has the following advantages: because the air flow outlets in the air flow channels are arranged at an angle of mutual impact, air flow containing a mixture of steam and bubbles enters the air flow channels through the air inlets respectively, and then a plurality of air flows flowing out of the air flow outlets can mutually impact in the valve cavity, the bubbles are broken, and the broken bubbles are realized. Therefore, a separate bubble breaking structure is not needed, the steam valve is relatively simple in structure and convenient to process. Meanwhile, after the multiple air flows collide relatively, the air flow speed can be slowed down, the rice milk is prevented from overflowing, the rice milk overflowing problem is effectively solved, the multi-path exhaust is adopted, the steam exhaust amount in unit time is relatively large, and the efficiency is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 shows an exploded schematic view of an embodiment one of a steam valve according to the present invention;
FIG. 2 shows a schematic perspective view of a valve seat of the steam valve of FIG. 1;
FIG. 3 shows a schematic perspective view of the valve seat of FIG. 2 at another angle;
FIG. 4 shows a schematic perspective view of a portion of the cut-away valve seat of FIG. 3;
FIG. 5 shows a schematic cross-sectional view of the valve seat of FIG. 3;
FIG. 6 shows a schematic perspective view of a valve cover of the steam valve of FIG. 1;
FIG. 7 shows a schematic front view of the valve cover of FIG. 6;
FIG. 8 shows a schematic cross-sectional view of the valve cover of FIG. 7;
FIG. 9 shows a schematic perspective view of a portion of the cut-away steam valve of FIG. 1;
FIG. 10 shows a schematic front view of the steam valve of FIG. 9;
FIG. 11 shows a schematic front view of a cut-away portion of the steam valve of FIG. 9
Fig. 12 shows a schematic perspective view of a valve seat of a second embodiment of a steam valve according to the invention;
fig. 13 shows a perspective schematic view of a valve cover of the steam valve of fig. 12.
Wherein, the reference numerals in the drawings are as follows:
10. a valve seat; 11. an air inlet; 12. a reflow hole; 13. a flow guiding structure; 14. an outer cylinder; 141. a notch; 15. an inner cylinder; 151. a first cone section; 152. a ring body; 153. a second cone section; 154. a straight barrel section; 16. a second flow blocking structure; 161. a diversion opening; 17. a third flow blocking structure; 18. a steam inlet structure; 181. a steam inlet channel; 182. a steam inlet; 183. an outer wall; 184. an inner wall; 19. a first rib; 20. a valve cover; 21. an exhaust port; 22. the first flow blocking rib; 23. second ribs; 24. connecting a flow blocking rib; 25. trapezoidal blocking ribs; 30. a reflow pad; 40. a seal ring; 50. and (5) decorating the outer cover.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, 2, 5 and 6, the steam valve of the first embodiment includes: the valve seat 10 and the valve cover 20, two air inlets 11 are arranged on the valve seat 10 at intervals; the valve cover 20 is arranged on the valve seat 10 and encloses a valve cavity with the valve seat 10, the valve cover 20 is provided with an exhaust port 21 communicated with the valve cavity, two air flow channels communicated with the air inlets 11 in a one-to-one correspondence manner are arranged in the valve cavity, and air flow outlets in the two air flow channels are arranged at an angle of mutually impacting to crush bubbles.
With the steam valve according to the first embodiment, since the air flow outlets in the two air flow channels are arranged at an angle of mutual impact, the air flow containing the mixture of steam and bubbles enters each air flow channel through each air inlet 11, so as to realize two-channel air intake and prevent the situation of failure after the single air inlet is blocked; then, a plurality of air flows flowing out from the air flow outlets can mutually impact in the valve cavity, and bubbles are broken, so that broken bubbles are realized. Therefore, a separate bubble breaking structure is not needed, the steam valve is relatively simple in structure and convenient to process. Meanwhile, after the multiple airflows collide relatively, the speed of the exhaust airflows can be slowed down, rice milk is prevented from overflowing, the problem of rice milk overflowing is effectively solved, multi-path exhaust is adopted, the steam exhaust capacity per unit time is relatively large, and the efficiency is higher.
In the present embodiment, as shown in fig. 2, the airflow outlets in the two airflow passages are provided toward the center of the valve seat 10. That is, the two air flow passages are arranged around the center of the valve seat, so that the air flow passages are convenient to process, and the manufacturing difficulty is reduced. Specifically, the included angle of the two airflow channels is in the range of 90-180 degrees, so that the processing is convenient. Wherein, the condition that the air flow is facing, namely the included angle of two air flow channels is 180 degrees, the effect is optimal.
In this embodiment, as shown in fig. 6 to 8, a first flow blocking structure is disposed in the airflow channel, so as to slow down the airflow velocity, and no abnormal sound occurs, and the bubbles collide with the first flow blocking structure, so that the bubbles are broken, and the breaking of the bubbles can be also realized. Specifically, the first flow blocking structure is formed on the valve cover 20, and is a plurality of first flow blocking ribs 22 that sequentially become longer and are arranged at intervals along the length of the outflow direction of the air flow. Therefore, the flow speed of the air flow can be slowed down step by step, the foam is broken, and the effect is better. Wherein the first flow blocking rib 22 is perpendicular to the direction of extension of the air flow channel.
In this embodiment, as shown in fig. 4 and 9, a bottom wall of the valve seat 10 is provided with a backflow hole 12, two air flow channels are arranged around the backflow hole 12, a flow guiding structure 13 for guiding condensed water to the backflow hole 12 is arranged on the inner side wall of the valve seat 10, and a backflow pad 30 is installed at the backflow hole 12. After the hot steam is condensed into water beads at the first flow blocking ribs 22, the water beads flow back to the backflow holes 12 on the bottom wall of the valve seat 10 under the action of the flow guiding structure 13, so that gas-liquid separation is realized, and when the condensed water reaches a certain amount, the backflow pad 30 is pushed away, and the condensed water flows back into the pot. The flow guiding structure 13 plays a role in guiding the condensed water. Specifically, the return orifice 12 is located in the middle of the valve seat.
In this embodiment, as shown in fig. 2 and 5, the valve seat 10 includes an outer cylinder 14 and an inner cylinder 15 disposed in the outer cylinder 14 and having a closed lower end, the wall of the inner cylinder 15 is funnel-shaped, a backflow hole 12 is formed in the bottom of the inner cylinder 15, and the flow guiding structure 13 is a flow guiding surface formed on the inner circumferential surface of the inner cylinder 15. The inner circumferential surface of the inner cylinder 15 is designed to be an inclined plane, so that the flow guiding and backflow effects are better. The valve seat has simple structure, is convenient to process and reduces the manufacturing difficulty. Specifically, the inner cylinder 15 includes a first cone section 151, a ring 152, a second cone section 153 and a straight section 154 sequentially connected from top to bottom, the taper of the first cone section 151 is greater than that of the second cone section 153, a sealing plate is arranged in the straight section 154, a backflow hole is arranged on the sealing plate, and condensed water can flow through the cavity of the straight section above the sealing plate. Of course, the shape of the inner cylinder is not limited thereto, and may be set according to circumstances.
In this embodiment, as shown in fig. 2, a second flow blocking structure 16 is disposed between the airflow outlet and the exhaust port 21, the second flow blocking structure 16 divides the valve cavity into an inner cavity and an outer cavity, the inner cavity is communicated with the airflow channel, the outer cavity is communicated with the exhaust port 21, and a flow guiding opening 161 is disposed on the second flow blocking structure 16, and is used for guiding the condensed water in the outer cavity to the backflow hole 12. The second flow blocking structure 16 can further slow down the airflow velocity, and prevent abnormal sound and overflow. When the hot steam enters the outer cavity, part of the hot steam condenses into water drops, part of the condensed water flows back to the reflux hole through the flow guide opening 161, and a small part of the condensed water is contained in the outer cavity. Specifically, the present invention relates to a method for manufacturing a semiconductor device. The second flow blocking structure 16 is an arc-shaped second flow blocking rib, and the curvature center of the second flow blocking rib is located on one side where the backflow hole 12 is located, namely, the opening of the second flow blocking rib is arranged back to the exhaust port, liquid in the backflow hole is prevented from entering the outer cavity under the action of the second flow blocking rib after the cover is opened, water in the valve cavity can be effectively prevented from flowing onto the working table surface, and the problem that water in the steam valve flows onto the working table surface after the whole machine is completed is solved.
In this embodiment, as shown in fig. 6, a distance is provided between the exhaust port 21 and the side wall of the valve cavity, so as to store condensed water in the valve cavity below the exhaust port 21 after the cover is opened, and prevent the condensed water in the outer cavity from flowing onto the table top.
In the present embodiment, as shown in fig. 5, a third flow blocking structure 17 extending into the intake port 11 from above the intake port 11 is provided on the inner side wall of the valve seat 10. The third flow blocking structure 17 further slows down the flow speed of the air flow, and can effectively prevent abnormal sound and overflow. Specifically, the third flow blocking structure 17 is a third flow blocking rib, and has a simple structure and is easy to manufacture.
In this embodiment, the side wall of the valve seat 10 is provided with a steam inlet structure 18 corresponding to each air inlet 11, the steam inlet structure 18 has a steam inlet channel 181 communicated with the air inlet 11, and one end of the steam inlet channel 181 far away from the air inlet 11 forms a steam inlet 182. The hot steam enters the steam inlet passage 181 through the steam inlet 182 and then enters the air flow passage through the air inlet 11 to facilitate steam entry. Specifically, as shown in fig. 3 and 4, the steam inlet structure 18 includes an outer wall 183 located at the outer side of the outer cylinder 14 and an inner wall 184 located between the outer cylinder 14 and the inner cylinder 15, a gap 141 is formed on the outer cylinder 14 located between the outer wall 183 and the inner wall 184, and a cavity enclosed by the outer wall 183 and the outer cylinder 14, the gap 141, and a cavity enclosed by the inner wall 184 and the outer cylinder 14 form a steam inlet channel 181. Wherein the inner wall 184 is an arcuate wall. The steam enters the steam inlet channel and can impact the cavity wall of the steam inlet channel, and water drops condensed on the cavity wall flow back into the pot. The size of the air inlet passage 181 is gradually reduced along the air flow direction, so that the air flow resistance can be increased, and the structure is easier to process because of the processing and manufacturing requirements. Of course, the size of the inlet channel can also be designed to be constant in the direction of the air flow.
In this embodiment, as shown in fig. 3, the steam inlet 182 is circular, which is easy to manufacture and reduces the processing difficulty. Of course, the shape of the steam inlet is not limited thereto, and may be adjusted according to practical situations.
In the present embodiment, as shown in fig. 4 and 6. Two first ribs 19 which extend to the valve cover 20 and are oppositely arranged are arranged on the inner side wall of the valve seat 10, two second ribs 23 which extend to the valve seat 10 and are oppositely arranged are arranged on the inner top wall of the valve cover 20, and the two second ribs 23 and the two first ribs 19 are respectively butted and enclosed into each air flow channel. The arrangement is in processing and appearance consideration, is convenient for processing and is more attractive. Of course, the airflow channel may be formed in the following manner: two first ribs which extend to the valve cover and are oppositely arranged are arranged on the inner side wall of the valve seat, the first ribs are in butt joint with the inner top wall of the valve cover, namely, the heights of the first ribs are high enough, and the second ribs are removed.
In this embodiment, as shown in fig. 7, two pairs of second ribs 23 provided on the valve cover 20 are correspondingly connected by connecting flow blocking ribs 24. The connecting flow stop ribs 24 may even further slow the flow rate of the air flow. The connecting flow blocking rib 24 is arc-shaped, and the curvature center thereof is positioned on one side of the exhaust port, i.e. the opening of the connecting flow blocking rib 24 is arranged towards the exhaust port. As shown in fig. 8, the connecting flow blocking rib 24 near the exhaust port has a trapezoid rib 25 protruding from the second rib 23 and extending toward the valve seat, that is, the trapezoid rib 25 and the connecting flow blocking rib 24 far from the exhaust port have a height difference along the air flow outflow direction, so as to gradually slow down the air flow speed.
In this embodiment, as shown in fig. 9, a seal ring 40 is provided between the valve cover and the valve seat, and the seal ring 40 plays a role in sealing to prevent steam from leaking from the periphery of the steam valve. The valve cover 20 is further covered with a decorative outer cover 50, and the decorative outer cover 50 is provided with a dodging port corresponding to the exhaust port. Of course, a decorative cover may not be provided.
The operation of the steam valve will be described with reference to fig. 1, 5, 10 and 11, in which, during operation of the appliance, when the inner pot boils, hot steam in the pot enters the steam valve through two steam inlets 182 (as shown in fig. 5 and 10) respectively, and the air flow speed is lower than that of a single air inlet; when the air flow is at the D position, part of the air flow can impact the cavity wall of the air inlet channel, and water drops can be condensed on the cavity wall to flow back to the inner pot. The air flow in the E position impacts the inner side of the third flow baffle rib and the cavity wall. When the air flow flows to the F position, as shown in fig. 10, the valve cover is provided with a plurality of structures such as the first flow blocking ribs, the second ribs and the like, so that the rapid air flow speed can be reduced, the formation of bubbles from rice milk is prevented, hot steam is condensed into water beads at the flow blocking ribs and then flows back to the middle part of the inner cavity of the steam valve under the action of the flow guiding inclined plane, and the air-liquid separation is realized. When the air flow is at the position G, the two air flow channels are designed according to a certain angle, so that the air flows out of the channels can mutually impact, and the air flow speed can be further reduced. After the waste heat steam enters the valve cover and the valve seat outer cavity through H (the space between the second flow blocking ribs and the trapezoid flow blocking ribs), the waste heat steam is exhausted through the exhaust port. When the water quantity at the reflux hole reaches a certain quantity, the reflux pad is pushed away and refluxed into the pot. When rice milk in the inner pot enters the steam valve, a part of the rice milk in the DE section flows back into the pot, and the rice milk directly flows back to the reflux pad along the inner cavity wall after the DE section.
The invention also provides a food heating device which comprises the steam valve.
Fig. 12 and 13 show the structure of a second embodiment of the steam valve according to the present invention, which is different from the first embodiment in that the steam inlet structure and the valve cover are different, in the second embodiment, the steam inlet structure 18 is an outer wall 183 located at the outer side of the valve seat 10, a cavity enclosed by the outer wall 183 and the outer wall 183 of the valve seat 10 forms the steam inlet channel 181, and the valve cover is not provided with the first flow blocking structure.
In this embodiment, the steam inlet 182 is D-shaped, which facilitates processing and reduces manufacturing difficulties.
In the embodiment not shown in the drawings, the number of the air flow channels may be more than three, and the number of the air flow channels may be set according to the specific situation.
In an embodiment not shown in the drawings, the airflow outlets in the plurality of airflow passages are disposed eccentrically with respect to the center of the valve seat and away from the exhaust port.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (16)

1. A steam valve, comprising:
the valve seat (10), a plurality of air inlets (11) are arranged on the valve seat (10) at intervals;
the valve cover (20) is arranged on the valve seat (10) and encloses a valve cavity with the valve seat (10), the valve cover (20) is provided with an exhaust port (21) communicated with the valve cavity,
the device is characterized in that a plurality of air flow channels which are communicated with the air inlets (11) in a one-to-one correspondence manner are arranged in the valve cavity, and air flow outlets in the air flow channels are arranged at an angle of mutually impacting to break bubbles.
2. A steam valve according to claim 1, characterized in that the gas flow outlets in the gas flow channels are arranged towards the centre of the valve seat (10) or that the gas flow outlets in the gas flow channels are arranged eccentrically with respect to the centre of the valve seat (10) and away from the exhaust opening (21).
3. The steam valve of claim 1, wherein a first flow blocking structure is provided in the flow path for slowing down the flow rate of the gas flow.
4. A steam valve according to claim 3, characterized in that the first flow blocking structure is formed on the valve cover (20) and is a plurality of first flow blocking ribs (22) which are sequentially longer and are arranged at intervals along the length of the outflow direction of the air flow.
5. A steam valve according to claim 1, characterized in that the bottom wall of the valve seat (10) is provided with a backflow hole (12), a plurality of the air flow channels are arranged around the backflow hole (12), and the inner side wall of the valve seat (10) is provided with a flow guiding structure (13) for guiding condensed water to the backflow hole (12).
6. A steam valve according to claim 5, characterized in that a return pad (30) is mounted at the return hole (12).
7. The steam valve according to claim 5, wherein the valve seat (10) comprises an outer cylinder (14) and an inner cylinder (15) which is arranged in the outer cylinder (14) and has a closed lower end, the cylinder wall of the inner cylinder (15) is funnel-shaped, the backflow hole (12) is formed in the cylinder bottom of the inner cylinder (15), and the flow guiding structure (13) is a flow guiding surface formed on the inner circumferential surface of the inner cylinder (15).
8. A steam valve according to claim 5, characterized in that a second flow blocking structure (16) is arranged between the air flow outlet and the air outlet (21), the second flow blocking structure (16) divides the valve chamber into an inner cavity and an outer cavity, the inner cavity is communicated with the air flow channel, the outer cavity is communicated with the air outlet (21), and a flow guiding opening (161) is arranged on the second flow blocking structure (16) and is communicated with the inner cavity and the outer cavity, and is used for guiding condensed water in the outer cavity to the backflow hole (12).
9. The steam valve according to claim 8, characterized in that the second flow blocking structure (16) is a second flow blocking rib having an arc shape.
10. A steam valve according to claim 1, characterized in that a distance is provided between the exhaust port (21) and a side wall of the valve chamber for storing condensate water in the valve chamber below the exhaust port (21) after opening the cover.
11. A steam valve according to claim 1, characterized in that the valve seat (10) is provided with a third flow blocking structure (17) on the inner side wall extending into the inlet (11) from above the inlet (11).
12. A steam valve according to claim 1, characterized in that a steam inlet structure (18) is provided on the side wall of the valve seat (10) and is provided corresponding to each air inlet (11), the steam inlet structure (18) is provided with a steam inlet channel (181) communicated with the air inlet (11), and one end of the steam inlet channel (181) far away from the air inlet (11) forms a steam inlet (182).
13. The steam valve according to claim 12, characterized in that the steam inlet (182) is circular or D-shaped.
14. The steam valve according to claim 1, wherein two first ribs (19) extending toward the valve cover (20) and oppositely arranged are arranged on the inner side wall of the valve seat (10), two second ribs (23) extending toward the valve seat (10) and oppositely arranged are arranged on the inner top wall of the valve cover (20), and the two second ribs (23) and the two first ribs (19) are respectively butted and enclosed into each air flow channel.
15. The steam valve according to claim 14, characterized in that the number of the air flow channels is two, and that the two pairs of second ribs (23) provided on the valve cover (20) are correspondingly connected by connecting flow blocking ribs (24).
16. A food heating apparatus comprising a steam valve, wherein the steam valve is as claimed in any one of claims 1 to 15.
CN201711026757.8A 2017-10-27 2017-10-27 Steam valve and food heating device with same Active CN107581916B (en)

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EP3749157A1 (en) 2018-02-05 2020-12-16 Koninklijke Philips N.V. Filter and vacuum food processor
CN110115530A (en) * 2018-02-05 2019-08-13 皇家飞利浦有限公司 Filter and vacuum food processor

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