CN111271701B

CN111271701B - Steam generator and steam box provided with same

Info

Publication number: CN111271701B
Application number: CN201811476601.4A
Authority: CN
Inventors: 蒋圣伟
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2018-12-05
Filing date: 2018-12-05
Publication date: 2021-10-29
Anticipated expiration: 2038-12-05
Also published as: CN111271701A

Abstract

The utility model provides a steam generator, includes the base and installs the upper cover on the base, and it has the gas outlet to cover to open on last, and upper cover internally mounted has the fender to flow the piece, keeps off to flow the piece and is close to the gas outlet, keeps off the bottom of flowing the piece and forms the fender stream face that top-down leaned on to the gas outlet direction, keeps into the vapour clearance between the upper portion of keeping off flowing the piece and the upper cover, keeps out the steam backward flow clearance between the lower part of keeping off flowing the piece and the upper cover. This steam generator is through setting up the fender stream spare that is close to the gas outlet in that the upper cover is inside, the water boiling produces the fender stream face of steam through the slope earlier, the steam admission clearance between rethread fender stream board and the steam generator upper cover flows to the gas outlet, steam circulation route has been prolonged, the comdenstion water that flows to the gas outlet has been reduced to fender stream board certain degree, on the other hand, the steam backflow clearance between fender stream spare lower part and the upper cover and the slope structure that the fender stream board kept off stream face have guaranteed that the comdenstion water of gathering can flow back to the steam generator in keeping off stream board, thereby effectively avoid in the evaporimeter the steam of boiling to get into in the inner bag.

Description

Steam generator and steam box provided with same

Technical Field

The invention relates to cooking equipment with a steam function, in particular to a steam generator and a steam box provided with the steam generator.

Background

The steam generator is one of the essential parts of the existing household appliances with steam function, and taking the steam box frequently used in the current household kitchen as an example, the steam box comprises a water tank, a steam generator, a steam heater, a blower device and other units. The existing steam generator generally comprises a base and a heating component arranged on the outer surface of the base, water inside the base is heated by the heating component to generate steam, and the generated steam flows out of the steam generator and enters the cooking inner container to heat food. The volume of the existing steam box on the market is generally lower than 50L, correspondingly, the power and the volume of the steam generator are smaller, along with the continuous improvement of the living standard of people, people have stronger and stronger requirements on the large-volume steam box, and when the steam box with larger volume needs to be developed, in order to achieve ideal preheating time and heating rate, the large-volume and high-power steam generator matched with the steam box needs to be developed. When the volume of the steam generator is certain and the power is large, water in the steam generator is more vigorously boiled, the water in the steam generator splashes and finally enters the liner, so that more condensed water in the liner is caused, and certain inconvenience is brought to the liner cleaning.

When the existing steam box works, steam exhausted by the inner container is gathered in the air guide plate of the air exhaust assembly, one part of air is exhausted through the air guide plate, and the other part of air can form condensed water and flows back into the inner container through the air exhaust port on the air guide plate, so that odor is easily tainted, and the condensed water in the inner container is too much. In addition, when a steam valve of the conventional steam box breaks down, a steam passage is blocked, the air pressure in the steam generator rises rapidly, and potential safety hazards exist.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a steam generator capable of preventing bubble water generated by boiling from being discharged from an air outlet in view of the above prior art.

The second technical problem to be solved by the present invention is to provide a steam box capable of reducing the condensed water in the inner container, aiming at the current state of the prior art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: this steam generator, including the base with install the upper cover on the base it has the water inlet to open on the base cover and open there is the gas outlet, its characterized in that: the upper cover internally mounted has the fender and flows the piece, keep off and flow the piece and be close to the gas outlet, keep off the bottom of flowing the piece and form the fender stream face that top-down leaned on to the gas outlet direction, keep letting into the vapour clearance between the upper portion and the upper cover that keep off and flow the piece, keep the steam backward flow clearance between the lower part and the upper cover that keep off and flow the piece.

In order to enable the water vapor collected on the flow blocking piece to smoothly flow back into the base, a flow guide surface for guiding the water vapor collected on the flow blocking piece to the water vapor backflow gap is formed on the flow blocking piece.

In order to more effectively prevent the boiled water vapor from entering the air outlet, the edge of the air outlet is provided with a boss extending towards the inner part of the upper cover.

In order to enable the water bubbles which touch the surface of the boss to smoothly flow back to the interior of the steam generator, a flow guide surface which is used for guiding the water vapor collected on the flow blocking member to the water vapor backflow gap is formed on the flow blocking member, and the flow guide surface is positioned right below the boss.

The boss can have multiple structures, and preferably, the boss is a hollow cylindrical boss.

In order to enable the water vapor entering the air outlet pipe to flow back to the inside of the steam generator, the edge of the air outlet is provided with an air outlet pipe extending towards the outside of the upper cover, and the air outlet pipe slants upwards from bottom to top along the air outlet direction.

Further preferably, the lower edge of the air outlet hole of the air outlet pipe is not lower than the lower edge of the air outlet.

The flow blocking piece can be provided with various mounting structures, and is preferably inserted and limited on the upper cover.

Preferably, the flow blocking piece is provided with a limiting groove on two opposite side walls at the top, a limiting convex rib inserted in the corresponding limiting groove is arranged at the corresponding position of the upper cover, a limiting block protruding forwards is arranged at the front end of the bottom of the flow blocking piece, and a limiting groove for the limiting block to insert is arranged at the corresponding position of the upper cover.

In order to make the water level monitoring more accurate, the heating pipe is installed to the bottom of base install the water level monitoring electrode on the upper cover, the lower extreme of water level monitoring electrode stretches into to the base inside, the heating pipe is installed on the region outside under the water level monitoring electrode.

The technical scheme adopted by the invention for solving the second technical problem is as follows: this steam ager is including inner bag, steam valve and exhaust subassembly, steam generator's gas outlet pass through the steam valve connecting pipe with the entry of steam valve is linked together, the export of steam valve pass through the intake pipe with the air inlet of inner bag is linked together, the exhaust subassembly has the aviation baffle, it has the gas vent to open on the aviation baffle, the gas outlet of inner bag pass through the blast pipe with the gas vent is linked together its characterized in that: the edge of the exhaust port is provided with a check ring extending upwards.

In order to ensure that the steam box is safer to use, a safety valve interface is arranged on the steam generator, and the safety valve interface is communicated with the exhaust assembly through a mechanical safety valve.

Preferably, the inner container comprises a first inner container and a second inner container, correspondingly, the gas outlet of the steam generator comprises a first gas outlet and a second gas outlet, the inlet of the steam valve comprises a first inlet communicated with the first gas outlet and a second inlet communicated with the second gas outlet, the outlet of the steam valve comprises a first outlet and a second outlet, the first outlet is communicated with the first gas inlet of the first inner container, and the second outlet is communicated with the second gas inlet of the second inner container.

Compared with the prior art, the invention has the advantages that: this steam generator is through setting up the fender stream spare that is close to the gas outlet in that the upper cover is inside, water boiling produces the fender stream face of steam earlier through the slope of fender stream board bottom, the steam admission clearance between rethread fender stream board and the steam generator upper cover flows to the gas outlet, steam circulation route has been prolonged, the fender stream board has reduced the comdenstion water that flows to the gas outlet to a certain extent, on the other hand, the comdenstion water of gathering in the fender stream board has been guaranteed to the slope structure of fender stream spare lower part and upper cover between steam backflow clearance and fender stream board fender stream face can flow back to the steam generator in, thereby effectively avoid in the evaporimeter in the steam of boiling gets into in the inner bag, and then the comdenstion water in the inner bag is reduced.

Drawings

Fig. 1 is a schematic structural view of a steam generator according to an embodiment of the present invention;

fig. 2 is a structural sectional view of the steam generator shown in fig. 1;

FIG. 3 is a cross-sectional view of the steam generator of FIG. 1 at another angle;

fig. 4 is a schematic structural view of an upper cover of a steam generator according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a flow blocking member of the steam generator according to the embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a steam box according to an embodiment of the present invention;

FIG. 7 is a schematic view of the steam box of FIG. 6 with the steam generator removed;

fig. 8 is a schematic structural diagram of an air deflector of an exhaust assembly according to an embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 5, the steam generator 100 of the present embodiment includes a base 1, an upper cover 2 and a flow blocking member 3, wherein the base 1 is provided with a water inlet 11, the upper cover 2 is provided with a gas outlet 21, the edge of the gas outlet 21 is provided with a boss extending toward the inside of the upper cover, the boss 22 is a hollow cylindrical boss, the edge of the gas outlet 21 is provided with a gas outlet tube 23 extending toward the outside of the upper cover, the gas outlet tube 23 is inclined upward from bottom to top along a gas outlet direction, and the lower edge of a gas outlet hole of the gas outlet tube 23 is not lower than the lower edge of the gas outlet 21.

The flow blocking piece 3 is arranged inside the upper cover 2, the flow blocking piece 3 is close to the air outlet 21 of the upper cover 2, a flow blocking surface 31 inclined towards the air outlet 21 from top to bottom is formed at the bottom of the flow blocking piece 3, an air inlet gap 4 is reserved between the upper portion of the flow blocking piece 3 and the upper cover 2, a water vapor backflow gap 5 is reserved between the lower portion of the flow blocking piece 3 and the upper cover, a flow guide surface 32 used for guiding water vapor gathered on the flow blocking piece to the water vapor backflow gap 5 is formed on the flow blocking piece 3, and the flow guide surface 32 is located right below the boss 22.

In this embodiment, the flow blocking member 3 is inserted and limited on the upper cover 2, and the specific structure is as follows:

two opposite side walls at the top of the flow blocking piece 3 are provided with limiting clamping grooves 33, the corresponding position of the upper cover 2 is provided with a limiting convex rib 24 inserted in the corresponding limiting clamping groove, the front end of the bottom of the flow blocking piece 3 is provided with a limiting block 34 protruding forwards, and the corresponding position of the upper cover 2 is provided with a limiting groove 25 for the limiting block to be inserted.

Install heating pipe 6 in the bottom of base 1, install water level monitoring electrode 7 on upper cover 2, the lower extreme of water level monitoring electrode 7 stretches into to the base 1 in, for improving detection accuracy, heating pipe 6 is installed on the region beyond under water level monitoring electrode 7. Like this, the regional cold junction that is in water level monitoring electrode 7 below, this region can not produce a large amount of bubbles when water boils, and the water level is true water level, has improved the precision that water level detected.

This steam generator 100 during operation, water boiling produces steam and flows the face 31 of keeping off the class through keeping off class 3 slope earlier, the rethread keeps off the steam clearance 4 between class 3 and the steam generator upper cover 2 and flows to gas outlet 21, the steam circulation route has been prolonged, keep off class 3 and has reduced the comdenstion water that flows to gas outlet 21 to a certain extent, on the other hand, the slope structure of the water conservancy diversion face 32 on class 3 has guaranteed that the condensation water that gathers in keeping off class 3 can water conservancy diversion to steam backflow clearance 5 departments, and then flow back to in the steam generator 100. Meanwhile, a large amount of bubbles are generated when the water is boiled, the water on the surfaces of the bubbles flows to the surfaces of the bosses 22 along the inner wall surfaces of the upper cover 2, after being blocked by the bosses 22, the water vapor cannot directly flow to the air outlet 21, and meanwhile, the air outlet pipe 23 is obliquely designed, so that the condensed water in the air outlet pipe 23 can timely flow back to the steam generator 100.

As shown in fig. 6 to 8, the steam box of the present embodiment is a double-inner-container steam box, and includes a first inner container 101, a second inner container 102, two steam valve connecting pipes 103, two steam valves 104, an air inlet pipe 105, and an air exhaust component 106, where the air outlet of the steam generator 100 includes a first air outlet and a second air outlet, the two steam valve connecting pipes 103 are provided, the inlet of the steam valve 104 includes a first inlet and a second inlet, the first air outlet of the steam generator 100 is communicated with the first inlet of the steam valve 104 through one of the steam valve connecting pipes 103, and the second air outlet of the steam generator 100 is communicated with the second inlet of the steam valve 104 through the other steam valve connecting pipe 103. The outlets of the steam valve 104 include a first outlet and a second outlet, two air inlet pipes 105 are provided, the first outlet of the steam valve 104 is communicated with the first air inlet of the first inner container 101 through one air inlet pipe 105, the second outlet of the steam valve 104 is communicated with the second air inlet of the second inner container 102 through the other air inlet pipe 105, thereby two steam passages are formed, and the on-off of the passages is controlled through the steam valve 104. In addition, the exhaust assembly 106 comprises an air deflector 107, the air deflector 107 is provided with two exhaust ports 108, the air outlets of the two inner containers are communicated with the corresponding exhaust ports through exhaust pipes 110, waste steam exhausted by the inner containers is collected in the air deflector 107, one part of waste steam is exhausted out of the atmosphere through the air deflector 107, and the other part of waste steam forms condensed water in the air deflector 107.

In this embodiment, a retaining ring 109 extending upward is formed at the edge of the exhaust port 108, and the retaining ring 109 can prevent condensed water formed in the air deflector from flowing back to the inner container through the exhaust port 108, so that odor tainting is effectively avoided, and excessive condensed water generated in the inner container can be avoided.

In addition, a safety valve port 26 is installed on the steam generator 100, and the safety valve port 26 communicates with the exhaust assembly 106 through a mechanical safety valve (not shown). When the steam valve 104 fails to cause the two steam passages to be blocked, the air pressure in the steam generator 100 is increased to a set value, the mechanical safety valve is opened, steam flows to the exhaust assembly 106 and finally enters the atmospheric environment, potential safety hazards are avoided, the mechanical safety valve cannot be recovered, when the mechanical safety valve is opened, the steam valve 104 fails, and a user is reminded to report repair timely.

Claims

1. A steam generator (100) comprises a base (1) and an upper cover (2) installed on the base, wherein a water inlet (11) is formed on the base (1), a gas outlet (21) is formed on the upper cover (2), and the steam generator is characterized in that: upper cover (2) internally mounted has the fender and flows piece (3), it is close to keep off to flow piece (3) gas outlet (21), and the bottom that keeps off to flow piece (3) forms fender stream face (31) of top-down to gas outlet (21) direction slope, keep off and leave steam admission clearance (4) between the upper portion of flowing piece (3) and upper cover (2), it flows clearance (5) to leave steam backward flow to keep off between the lower part of flowing piece (3) and the upper cover, it flows to be formed with on piece (3) and is used for coming to keep off stream water conservancy diversion face (32) of steam backward flow clearance (5) department of gathering on the flowing piece.

2. The steam generator of claim 1, wherein: the edge of the air outlet (21) is provided with a boss (22) extending towards the inner part of the upper cover.

3. The steam generator of claim 2, wherein: the flow blocking piece (3) is provided with a flow guide surface (32) for guiding water vapor collected on the flow blocking piece to the water vapor backflow gap (5), and the flow guide surface (32) is positioned under the boss (22).

4. The steam generator of claim 2, wherein: the boss (22) is a hollow cylindrical boss.

5. The steam generator of claim 1, wherein: the edge of the air outlet (21) is provided with an air outlet pipe (23) extending to the outside of the upper cover, and the air outlet pipe (23) slants upwards from bottom to top along the air outlet direction.

6. The steam generator of claim 5, wherein: the lower edge of the air outlet hole of the air outlet pipe (23) is not lower than the lower edge of the air outlet (21).

7. The steam generator of claim 1, wherein: the flow blocking piece (3) is inserted and limited on the upper cover (2).

8. The steam generator of claim 7, wherein: the flow blocking device is characterized in that two opposite side walls at the top of the flow blocking piece (3) are provided with limiting clamping grooves (33), limiting convex ribs (24) inserted into the corresponding limiting clamping grooves are arranged at corresponding positions of the upper cover (2), a limiting block (34) protruding forwards is arranged at the front end of the bottom of the flow blocking piece (3), and limiting grooves (25) for the limiting block to be inserted are formed at corresponding positions of the upper cover (2).

9. The steam generator of claim 1, wherein: heating pipe (6) are installed to the bottom of base (1) install water level monitoring electrode (7) on upper cover (2), the lower extreme of water level monitoring electrode (7) stretches into to base (1) inside, heating pipe (6) are installed on the region outside under water level monitoring electrode (7).

10. A steam box equipped with the steam generator of any one of claims 1 to 9, comprising an inner container, a steam valve (104) and an exhaust assembly (106), wherein an air outlet of the steam generator (100) is communicated with an inlet of the steam valve (104) through a steam valve connecting pipe (103), an outlet of the steam valve (104) is communicated with an air inlet of the inner container through an air inlet pipe (105), the exhaust assembly (106) is provided with an air deflector (107), the air deflector (107) is provided with an air outlet (108), and the air outlet of the inner container is communicated with the air outlet (108) through an exhaust pipe (110), and the steam generator is characterized in that: the edge of the exhaust port (108) is provided with a check ring (109) extending upwards.

11. The steam box of claim 10, wherein: the steam generator (100) is provided with a safety valve interface (26), and the safety valve interface is communicated with the exhaust assembly (106) through a mechanical safety valve.

12. The steam box of claim 11, wherein: the inner container comprises a first inner container (101) and a second inner container (102), correspondingly, the gas outlet of the steam generator (100) comprises a first gas outlet and a second gas outlet, the inlet of the steam valve (104) comprises a first inlet communicated with the first gas outlet and a second inlet communicated with the second gas outlet, the outlet of the steam valve (104) comprises a first outlet and a second outlet, the first outlet is communicated with the first gas inlet of the first inner container (101), and the second outlet is communicated with the second gas inlet of the second inner container (102).