CN208481125U - Steam valve and apparatus for heating food with it - Google Patents

Abstract

The utility model provides a kind of steam valve and the apparatus for heating food with it, and steam valve includes: valve seat (10), and multiple air inlets (11) are arranged at intervals on valve seat (10)；Valve deck (20), valve deck (20) is located on valve seat (10) and surrounds valve chamber with valve seat (10), the exhaust outlet (21) being connected to valve chamber is offered on valve deck (20), it is equipped in valve chamber and corresponds the multiple airflow channels being connected to each air inlet (11), the air-flow outflux in multiple airflow channels is crushed the angle setting of steam bubble in impact mutually.The problem of brokenly bubble structure causes steam valve structure is complicated, processing difficulties is separately provided in the technical solution of the utility model effective solution in valve chamber in the prior art.

Description

Steam valve and apparatus for heating food with it

Technical field

The utility model relates to fields of home appliance technology, and in particular to a kind of steam valve and the heat foods dress with it It sets.

Background technique

With the promotion of people's quality of the life, to the performances of the household electrical appliance such as electric cooker, more stringent requirements are proposed, business men It is more fierce to compete, and the promotion and change of this demand to electric cooker, which are mainly reflected in, not to be required nothing more than with excellent quality, and does Rice mouthfeel out will be got well, to meet public demand.

In the production design process of electric cooker, usually internal pot, the design of coating and heating uniformity, computer heating control Etc. mainly improved, but the design of steam valve is also a critically important ring, and steam valve is mainly used for during cooking Exhaust and de-soak.

Steam valve in the prior art uses mostly into single mode out, such as in patent document CN206239191U, steam The valve deck that valve has valve seat and connect with valve seat, valve seat connect to form valve chamber with valve deck, and valve chamber has multiple steam inlets and one A steam (vapor) outlet, multiple steam inlets are connected to steam (vapor) outlet, and multiple steam inlets are arranged in parallel, without mutual between steam Impact or impact dynamics it is too small, therefore, it is necessary in addition in valve chamber be arranged brokenly bubble structure, the brokenly bubble structure include brokenly bubble chamber and It is set to the intracavitary brokenly bubble part of the brokenly bubble with being reciprocally moveable, brokenly bubble chamber has air inlet and venthole, and multiple steam inlets are The venthole of the air inlet of brokenly bubble chamber, brokenly bubble chamber is connected to steam (vapor) outlet.When steam bubble enters the steam inlet of steam valve, immediately into Enter brokenly bubble structure, brokenly bubble part moves and reach a certain position of brokenly bubble chamber under the thrust of foam, and then big foam is worn Existing gap between brokenly bubble part and the peripheral wall of brokenly bubble chamber is crossed, while again due to the force of rolling friction by brokenly bubble part, macrofoam It is abolished.Above-mentioned steam valve has the disadvantage that

1, it needs that brokenly bubble structure is separately provided in valve chamber, the structure of steam valve is more complicated, processes relatively difficult；

2, part hot steam in the valve chamber that enters between venthole and steam (vapor) outlet after brokenly bubble structure by being condensed into Droplet, droplet cannot be back in pot in the part valve chamber, and reflowing result is poor；

3, the ponding in the valve chamber below steam (vapor) outlet is easy to flow on work top by steam (vapor) outlet after uncapping.

Utility model content

It is existing to solve the main purpose of the utility model is to provide a kind of steam valve and with its apparatus for heating food Have and the problem of brokenly bubble structure causes steam valve structure is complicated, processing difficulties is separately provided in technology in valve chamber.

To achieve the above object, the utility model provides a kind of steam valve, comprising: valve seat is arranged at intervals on valve seat Multiple air inlets；Valve deck, valve deck are located on valve seat and surround valve chamber with valve seat, and the exhaust being connected to valve chamber is offered on valve deck Mouthful, it is equipped in valve chamber and corresponds the multiple airflow channels being connected to each air inlet, the air-flow outflux in multiple airflow channels The angle setting of steam bubble is crushed in mutual impact.

Further, the air-flow outflux in multiple airflow channels is arranged towards the center of valve seat, alternatively, multiple air-flows are logical Center eccentric setting and separate exhaust outlet setting of the air-flow outflux relative to valve seat in road.

Further, first gear flow structure is equipped in airflow channel, for slowing down air flow rate.

Further, first gear flow structure is molded on valve deck, is successively become for multiple outflow direction length along air-flow Long and spaced first baffle rib.

Further, the bottom wall of valve seat is equipped with return port, and multiple airflow channels are arranged around return port, the inside of valve seat Wall is equipped with for by the flow-guiding structure of condensate water guide to return port.

Further, reflux pad is installed at return port.

Further, valve seat includes outer barrel and is arranged in outer barrel and the inner cylinder of lower end closed, the cylinder of inner cylinder Wall is funnel-shaped, and return port is formed on the cylinder bottom of inner cylinder, and flow-guiding structure is the guide face that the inner peripheral surface of inner cylinder is formed.

Further, second gear flow structure is equipped between air-flow outflux and exhaust outlet, second gear flow structure divides valve chamber It is divided into inner chamber body and outer chamber, inner chamber body is connected to airflow channel, and outer chamber is connected to exhaust outlet, and second gear flow structure is equipped with It is connected to the water conservancy diversion opening of inner chamber body and outer chamber, for by the condensate water guide in outer chamber to return port.

Further, second gear flow structure is the second arc-shaped baffle rib.

Further, there is distance, for being located at below exhaust outlet after uncapping between exhaust outlet and the side wall of valve chamber Valve chamber stores condensed water.

Further, the inner sidewall of valve seat is equipped with the third gear flow structure that air inlet is protruded into above air inlet.

Further, the side wall of valve seat be equipped with each air inlet be correspondingly arranged into vapour structure, into vapour structure have with Air inlet connection into vapour channel, into one end formation steam inlet of separate the air inlet in vapour channel.

Further, steam inlet is rounded or D-shaped.

Further, the inner sidewall of valve seat is equipped with two the first ribs for extending and being oppositely arranged to valve deck, valve deck Inner roof wall is equipped with two the second ribs for extending and being oppositely arranged to valve seat, and two the second ribs and two the first ribs are distinguished Docking surrounds every airflow channel.

Further, airflow channel is two, and two pair of second rib being arranged on valve deck passes through connection baffle rib pair It should connect.

The utility model also provides a kind of apparatus for heating food, including steam valve, and steam valve is above-mentioned steam valve.

Technical solutions of the utility model have the advantages that since the air-flow outflux in multiple airflow channels is in mutual The angle of impact is arranged, and the air-flow of the mixture containing steam and steam bubble passes through each air inlet into each airflow channel, so respectively It can be impacted mutually in valve chamber from the multiply air-flow that each air-flow outflux flows out afterwards, steam bubble is abolished, and realizes broken steam bubble.In this way There is no need to independent brokenly bubble structures, and the structure of steam valve is relatively easy, easy to process.It, can meanwhile after the opposite collision of multiply air-flow Slow down air velocity, prevents Rice & peanut milk from overflowing, effective solution Rice & peanut milk overflow problem, and be vented using multipath, the unit time Steam exhaust-gas amount it is relatively large, it is more efficient.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.In the accompanying drawings:

Fig. 1 shows the decomposition diagram of the embodiment one of steam valve according to the present utility model；

Fig. 2 shows the stereoscopic schematic diagrams of the valve seat of the steam valve of Fig. 1；

Fig. 3 shows the stereoscopic schematic diagram of another angle of the valve seat of Fig. 2；

Fig. 4 shows the stereoscopic schematic diagram of a part for cutting away valve seat of Fig. 3；

Fig. 5 shows the schematic cross-sectional view of the valve seat of Fig. 3；

Fig. 6 shows the stereoscopic schematic diagram of the valve deck of the steam valve of Fig. 1；

Fig. 7 shows the schematic front view of the valve deck of Fig. 6；

Fig. 8 shows the schematic cross-sectional view of the valve deck of Fig. 7；

Fig. 9 shows the stereoscopic schematic diagram of a part for cutting away steam valve of Fig. 1；

Figure 10 shows the schematic front view of the steam valve of Fig. 9；

Figure 11 shows the schematic front view for cutting away part of the steam valve of Fig. 9

Figure 12 shows the stereoscopic schematic diagram of the valve seat of the embodiment two of steam valve according to the present utility model；

Figure 13 shows the stereoscopic schematic diagram of the valve deck of the steam valve of Figure 12.

Wherein, the appended drawing reference in above-mentioned attached drawing are as follows:

10, valve seat；11, air inlet；12, return port；13, flow-guiding structure；14, outer barrel；141, notch；15, inner cylinder； 151, the first conical cylinder section；152, ring body；153, the second conical cylinder section；154, direct tube section；16, second gear flow structure；161, water conservancy diversion is opened Mouthful；17, third gear flow structure；18, into vapour structure；181, into vapour channel；182, steam inlet；183, outer wall；184, inner wall； 19, the first rib；20, valve deck；21, exhaust outlet；22, the first baffle rib；23, the second rib；24, baffle rib is connected；25, Trapezoidal block reinforcement；30, reflux pad；40, sealing ring；50, outer cover is decorated.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

As shown in Figure 1, Figure 2, shown in Fig. 5 and Fig. 6, the steam valve of embodiment one includes: valve seat 10 and valve deck 20, on valve seat 10 between Every setting, there are two air inlets 11；Valve deck 20 is located on valve seat 10 and surrounds valve chamber with valve seat 10, offers on valve deck 20 and valve The exhaust outlet 21 of chamber connection, interior be equipped with of valve chamber correspond two airflow channels being connected to each air inlet 11, and two air-flows are logical Air-flow outflux in road is crushed the angle setting of steam bubble in impact mutually.

Using the steam valve of embodiment one, since the air-flow outflux in two airflow channels is in that the angle impacted mutually is set Set, the air-flow of the mixture containing steam and steam bubble passes through each air inlet 11 respectively and enters each airflow channel, realize two channels into Gas, the case where failure after preventing single air inlet from blocking；Then the multiply air-flow flowed out from each air-flow outflux can be mutual in valve chamber It mutually impacts, steam bubble is abolished, and realizes broken steam bubble.So there is no need to independent brokenly bubble structures, and the structure of steam valve is relatively easy, It is easy to process.Meanwhile after the opposite collision of multiply air-flow, the speed of discharge air-flow can be slowed down, prevent Rice & peanut milk from overflowing, effective solution Rice & peanut milk overflow problem, and be vented using multipath, the steam exhaust-gas amount of unit time is relatively large, more efficient.

In the present embodiment, as shown in Fig. 2, the center of air-flow outflux towards valve seat 10 in two airflow channels is set It sets.That is, two airflow channels are arranged around the center of valve seat, airflow channel easy to process reduces manufacture difficulty.Specifically Ground, the angle of two airflow channels are easy to process in the range of 90 °~180 °.Wherein, the case where air-flow front liquidates i.e. two The angle of a airflow channel is 180 °, and effect is best.

In the present embodiment, as shown in Figure 6 to 8, first gear flow structure is equipped in airflow channel, for slowing down air-flow stream Dynamic speed is not in abnormal sound, and steam bubble collides first gear flow structure, and steam bubble is crashed through, and brokenly bubble also may be implemented.Specifically Ground, first gear flow structure are molded on valve deck 20, are that multiple outflow direction length along air-flow are successively elongated and interval is arranged The first baffle rib 22.The flowing velocity and brokenly bubble that slow down air-flow step by step may be implemented in this way, effect is more preferable.Wherein, first Extending direction of the baffle rib 22 perpendicular to airflow channel.

In the present embodiment, as shown in figures 4 and 9, the bottom wall of valve seat 10 is equipped with return port 12, and two airflow channels enclose It is arranged around return port 12, the inner sidewall of valve seat 10 is equipped with for returning the flow-guiding structure 13 of condensate water guide to return port 12 Reflux pad 30 is installed at discharge orifice 12.After hot steam is condensed into droplet at the first baffle rib 22, in the work of flow-guiding structure 13 The return port 12 being back on the bottom wall of valve seat 10 under is realized gas-liquid separation, can be pushed open back after condensed water reaches a certain amount of Pad 30 is flowed, in condensate return to pot.Flow-guiding structure 13 plays the role of carrying out water conservancy diversion to condensed water.Specifically, return port 12 Positioned at the middle part of valve seat.

In the present embodiment, as shown in Figure 2 and Figure 5, valve seat 10 include outer barrel 14 and be arranged in outer barrel 14 and under Closed inner cylinder 15 is held, the barrel of inner cylinder 15 is funnel-shaped, and return port 12, water conservancy diversion knot are formed on the cylinder bottom of inner cylinder 15 Structure 13 is the guide face that the inner peripheral surface of inner cylinder 15 is formed.The inner peripheral surface of inner cylinder 15 is designed as inclined-plane, water conservancy diversion and reflowing result More preferably.The structure of valve seat is simple, easy to process, reduces manufacture difficulty.Specifically, inner cylinder 15 includes being sequentially connected from top to bottom The first conical cylinder section 151, ring body 152, the second conical cylinder section 153 and direct tube section 154, the taper of the first conical cylinder section 151 is greater than second The taper of conical cylinder section 153, direct tube section 154 is interior to be equipped with closed plate, and closed plate is equipped with return port, and condensed water all can runner direct tube section Be located at closed plate above cavity in.Certainly, the shape of inner cylinder is also not limited to this, is configured as the case may be.

In the present embodiment, as shown in Fig. 2, being equipped with second gear flow structure 16 between air-flow outflux and exhaust outlet 21, the Valve chamber is separated into inner chamber body and outer chamber by second gear flow structure 16, and inner chamber body is connected to airflow channel, outer chamber and exhaust outlet 21 Connection, second gear flow structure 16 is equipped with the water conservancy diversion opening 161 of connection inner chamber body and outer chamber, for by the condensation in outer chamber Water is guided to return port 12.Second gear flow structure 16 can further slow down air flow rate, prevent abnormal sound and spilling The case where.When hot steam enters in outer chamber, partial condensation is back to back at droplet, partial condensation water by water conservancy diversion opening 161 At discharge orifice, small part condensed water is contained in outer chamber.Specifically.Second gear flow structure 16 is the second arc-shaped baffle muscle Item, and its center of curvature is located at the side where return port 12, i.e. the opening of the second baffle rib is arranged backwards to exhaust outlet, uncaps It prevents the liquid of return port from entering outer chamber under the action of the second baffle rib afterwards, the ponding in valve chamber can be effectively prevent to flow to On work top, solve the problems, such as that the ponding after the completion of complete machine works in steam valve flows to work top.

In the present embodiment, as shown in fig. 6, there is distance, for after uncapping between exhaust outlet 21 and the side wall of valve chamber Valve chamber positioned at 21 lower section of exhaust outlet stores condensed water, prevents in the condensation flow to work top in outer chamber.

In the present embodiment, as shown in figure 5, the inner sidewall of valve seat 10, which is equipped with from the top of air inlet 11, protrudes into air inlet 11 third gear flow structure 17.Third gear flow structure 17 further slows down air flow rate, can effectively prevent occurring abnormal sound and The case where spilling.Specifically, third gear flow structure 17 is third baffle rib, and structure is simple, and manufacture is easy.

In the present embodiment, the side wall of valve seat 10 be equipped with each air inlet 11 be correspondingly arranged into vapour structure 18, into vapour Structure 18 forms steam into one end of the separate air inlet 11 in vapour channel 181 with being connected to air inlet 11 into vapour channel 181 Import 182.Hot steam is entered by steam inlet 182 into vapour channel 181, is then entered in airflow channel by air inlet 11, Convenient for steam entrance.Specifically, as shown in Figure 3 and Figure 4, into the outer wall 183 that vapour structure 18 includes positioned at the outside of outer barrel 14 And the inner wall 184 between outer barrel 14 and inner cylinder 15, it opens on the outer barrel 14 between outer wall 183 and inner wall 184 Equipped with notch 141, cavity that cavity, notch 141 and the inner wall 184 and outer barrel 14 that outer wall 183 and outer barrel 14 surround surround It is formed into vapour channel 181.Wherein, inner wall 184 is arcwall.Steam enters into can impact the cavity wall into vapour channel in vapour channel, Water droplet is condensed into cavity wall to be back in pot.Size into vapour channel 181 gradually becomes smaller along airflow direction, can play increasing Big gas-flow resistance, also for the needs of processing and manufacturing, such structure is easier to process.Certainly, into the size in vapour channel It can be designed as constant along airflow direction.

In the present embodiment, as shown in figure 3, steam inlet 182 is rounded, manufacture is easy, reduces difficulty of processing.Certainly, The shape of steam inlet is not limited to this, and can be adjusted according to actual conditions.

In the present embodiment, as shown in Figure 4 and Figure 6.The inner sidewall of valve seat 10, which is equipped with, to be extended to valve deck 20 and sets relatively Two the first ribs 19 set, the inner roof wall of valve deck 20 are equipped with two the second ribs for extending and being oppositely arranged to valve seat 10 23, two the second ribs 23 dock respectively with two the first ribs 19 and surround every airflow channel.Setting is in processing in this way And appearance considers, and it is easy to process, it is more attractive.Certainly, the generation type of airflow channel may be such as flowering structure: the inside of valve seat Wall is equipped with two the first ribs for extending and being oppositely arranged to valve deck, and the first rib is abutted with the inner roof wall of valve deck, i.e., and first The height of rib is sufficiently high, eliminates the second rib.

In the present embodiment, as shown in fig. 7, two pair of second rib 23 being arranged on valve deck 20 passes through connection baffle rib 24 are correspondingly connected with.Connection baffle rib 24 can further slow down the flowing velocity of air-flow.It is arc-shaped to connect baffle rib 24, And its center of curvature is located at the side where exhaust outlet, i.e. the opening of connection baffle rib 24 is arranged towards exhaust outlet.Such as Fig. 8 institute Show there is the trapezoidal block reinforcement 25 for protruding from the second rib 23 and extending to valve seat close to the connection baffle rib 24 of exhaust outlet, i.e., The connection baffle rib 24 of trapezoidal block reinforcement 25 and separate exhaust outlet has difference in height along air-flow outflow direction, and realization slows down gas step by step Flow velocity degree.

In the present embodiment, as shown in figure 9, being equipped with sealing ring 40 between valve deck and valve seat, sealing ring 40 plays sealing Effect prevents steam from revealing from steam valve periphery.Decoration outer cover 50 is also covered on valve deck 20, decoration outer cover 50, which has, to be corresponded to The escape port of exhaust outlet.It is of course also possible to be not provided with decoration outer cover.

It is illustrated below with reference to the course of work of Fig. 1, Fig. 5, Figure 10 and Figure 11 to steam valve, in the utensil course of work, In interior pot when boiling, hot steam passes through two steam inlets 182 respectively and enters in steam valve (as shown in figure 5 and figure 10) in pot, Its air velocity is small compared with single air inlet speed；When air-flow is in the position D, fraction can impact the cavity wall of inlet channel, It can be condensed into water droplet on cavity wall and flow back into interior pot.Air-flow can impact the interior of third baffle rib and cavity wall when being in the position E Side.When air-flow flow to the position F, as shown in Figure 10, because designing many places structures such as the first baffle rib, the second rib on valve deck, Quick air velocity can be made to slow down, while preventing Rice & peanut milk from forming bubble, after hot steam is condensed into droplet at block reinforcement, in water conservancy diversion It is back under the action of inclined-plane in the middle part of steam valve insertion, realizes gas-liquid separation.When air-flow is in position G, because two strands of air-flows are logical Road is designed according to certain angle, and when air-flow flow pass can impact mutually, and air-flow velocity can further decrease.Its afterheat steam is logical H (space between the second baffle rib and trapezoidal block reinforcement) is crossed into valve deck with after valve seat exocoel, is discharged finally by exhaust outlet Gas.After water at return port reaches a certain amount of, reflux pad can be pushed open, flowed back into pot.When there is Rice & peanut milk entrance in interior pot When steam valve, DE sections of a part of Rice & peanut milks are flowed back into pot, are directly flowed back at reflux pad along internal chamber wall after DE sections.

The utility model additionally provides a kind of apparatus for heating food, including steam valve, and steam valve is above-mentioned steam valve.

Figure 12 and Figure 13 shows the structure of the embodiment two of the steam valve of the utility model, the steam valve of embodiment two with The difference of embodiment one is the difference into vapour structure and valve deck, is positioned at valve seat 10 into vapour structure 18 in example 2 The outer wall 183 in outside, the cavity that the outer wall 183 of outer wall 183 and valve seat 10 surrounds are formed into vapour channel 181, are not set on valve deck Set first gear flow structure.

In the present embodiment, steam inlet 182 is D-shaped, easy to process, reduces manufacture difficulty.

In embodiment not shown in the figure, the number of airflow channel may be three or more, can be according to specific feelings The number of condition setting airflow channel.

In embodiment not shown in the figure, the air-flow outflux in multiple airflow channels is eccentric relative to the center of valve seat It is arranged and is arranged far from exhaust outlet.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes among the protection scope created still in the utility model.

Claims (16)

1. a kind of steam valve, comprising:

Valve seat (10) is arranged at intervals with multiple air inlets (11) on the valve seat (10)；

Valve deck (20), the valve deck (20) are located on the valve seat (10) and surround valve chamber, the valve deck with the valve seat (10) (20) exhaust outlet (21) being connected to the valve chamber is offered on,

The multiple airflow channels being connected to are corresponded with each air inlet (11) it is characterized in that, being equipped in the valve chamber, it is more Air-flow outflux in a airflow channel is crushed the angle setting of steam bubble in impact mutually.

2. steam valve according to claim 1, which is characterized in that the air-flow outflux direction in multiple airflow channels The center of the valve seat (10) is arranged, alternatively, the air-flow outflux in multiple airflow channels is relative to the valve seat (10) Center eccentric setting and far from the exhaust outlet (21) be arranged.

3. steam valve according to claim 1, which is characterized in that be equipped with first gear flow structure in the airflow channel, use In slowing down air flow rate.

4. steam valve according to claim 3, which is characterized in that the first gear flow structure is molded over the valve deck (20) On, it is that multiple outflow direction length along the air-flow are successively elongated and spaced first baffle rib (22).

5. steam valve according to claim 1, which is characterized in that the bottom wall of the valve seat (10) is equipped with return port (12), multiple airflow channels are arranged around the return port (12), and the inner sidewall of the valve seat (10) is equipped with for inciting somebody to action Condensate water guide to the return port (12) flow-guiding structure (13).

6. steam valve according to claim 5, which is characterized in that be equipped with reflux pad (30) at the return port (12).

7. steam valve according to claim 5, which is characterized in that the valve seat (10) includes that outer barrel (14) and setting exist In the outer barrel (14) and the inner cylinder (15) of lower end closed, the barrel of the inner cylinder (15) is funnel-shaped, the inner cylinder It is formed on the cylinder bottom of body (15) return port (12), the flow-guiding structure (13) is the inner peripheral surface shape of the inner cylinder (15) At guide face.

8. steam valve according to claim 5, which is characterized in that between the air-flow outflux and the exhaust outlet (21) Equipped with second gear flow structure (16), the valve chamber is separated into inner chamber body and outer chamber by the second gear flow structure (16), described Inner chamber body is connected to the airflow channel, and the outer chamber is connected to the exhaust outlet (21), the second gear flow structure (16) It is equipped with the water conservancy diversion opening (161) for being connected to the inner chamber body and the outer chamber, for leading the condensed water in the outer chamber It flow to the return port (12).

9. steam valve according to claim 8, which is characterized in that the second gear flow structure (16) is arc-shaped second Baffle rib.

10. steam valve according to claim 1, which is characterized in that the side wall of the exhaust outlet (21) and the valve chamber it Between have distance, for after uncapping be located at the exhaust outlet (21) below the valve chamber store condensed water.

11. steam valve according to claim 1, which is characterized in that the inner sidewall of the valve seat (10) is equipped with from described The third gear flow structure (17) of the air inlet (11) is protruded into above air inlet (11).

12. steam valve according to claim 1, which is characterized in that the side wall of the valve seat (10) be equipped with it is each described Air inlet (11) be correspondingly arranged into vapour structure (18), it is described have into vapour structure (18) be connected to the air inlet (11) into Vapour channel (181), described one end far from the air inlet (11) into vapour channel (181) form steam inlet (182).

13. steam valve according to claim 12, which is characterized in that the steam inlet (182) is rounded or D-shaped.

14. steam valve according to claim 1, which is characterized in that the inner sidewall of the valve seat (10) is equipped with to described The inner roof wall of two the first ribs (19) that valve deck (20) extends and is oppositely arranged, the valve deck (20) is equipped with to the valve seat (10) two the second ribs (23) for extending and being oppositely arranged, two second ribs (23) and two first ribs (19) docking surrounds every airflow channel respectively.

15. steam valve according to claim 14, which is characterized in that the airflow channel is two, is arranged in the valve Two pairs of second ribs (23) on lid (20) are correspondingly connected with by connecting baffle rib (24).

16. a kind of apparatus for heating food, including steam valve, which is characterized in that the steam valve is any in claim 1 to 15 Steam valve described in.