CN111594814A - Side wall water boiling type stainless steel steam generator - Google Patents
Side wall water boiling type stainless steel steam generator Download PDFInfo
- Publication number
- CN111594814A CN111594814A CN202010332754.2A CN202010332754A CN111594814A CN 111594814 A CN111594814 A CN 111594814A CN 202010332754 A CN202010332754 A CN 202010332754A CN 111594814 A CN111594814 A CN 111594814A
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- stainless steel
- electric heating
- side wall
- heating pipe
- shell
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
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- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cookers (AREA)
Abstract
The invention belongs to the technical field of steam household appliances, and relates to a stainless steel steam generator with a water boiling type side wall. The device comprises a cavity, a water inlet, a drain outlet, a steam outlet, an upper shell, a heating body, a temperature sensor and a temperature fuse, wherein the cavity is formed by surrounding a front side wall and a rear side wall, the front side wall and the rear side wall are respectively the upper shell and the heating body, and the temperature sensor and the temperature fuse are arranged on the outer wall of the heating body; the heating body comprises a stainless steel shell, an upper electric heating pipe, a lower electric heating pipe and cast aluminum, wherein the outer wall of the stainless steel shell is provided with a transverse electric heating pipe installation groove, a plurality of protruded electric heating pipe support frames are arranged in the electric heating pipe installation groove, and the upper electric heating pipe and the lower electric heating pipe are respectively positioned in the upper electric heating pipe installation groove and the lower electric heating pipe installation groove and are erected on the electric heating pipe support frames; the outer wall of the stainless steel shell is provided with a connecting piece, and the other end of the connecting piece is die-cast into cast aluminum. The electric heating tube, the cast aluminum and the stainless steel shell are cast together by die casting, the side wall is used for boiling water, the steam generator is thin in thickness, is not easy to spray water, is easy to meet the requirement and can produce superheated steam.
Description
Technical Field
The invention belongs to the technical field of steam household appliances, and relates to a stainless steel steam generator with a water boiling type side wall.
Background
With the application of the steam generating device on household electrical products becoming more and more extensive, steam generators with various functions and structures are also becoming more and more, but the stainless steel steam generating devices existing in the current market are generally larger in thickness and are not suitable for models with narrower side wall spaces. Most of steam generators with thin thickness in the current market are of die-cast aluminum structures (such as patent CN201410020691.1, patent CN 201410020667.8 and the like), and when the steam generator is used, heavy metals are easily introduced into steam, and the requirements of new food safety regulations are difficult to meet.
An all stainless steel steam generator of a relatively thin thickness is described in patent CN 201720521446.8. However, the generator has the following problems: (1) the heating pipe is arranged in the cavity, and water is in direct contact with the heating pipe, so that the boiling degree is too high, and water is easy to spray; (2) the internal water level is controlled by the temperature sensor, and the temperature sensor is placed in the temperature sensing shell, so that the temperature sensing shell is a stainless steel shell, the temperature sensing is insensitive, and the real water level condition cannot be fed back in time, and dry burning easily occurs.
A straight tube type stainless steel steam generator is described in patent CN201820751491.7, which is also thin in thickness. However, such steam generators are difficult to implement for high power applications due to the heat transfer area. At present, the method is only suitable for being applied to a steaming oven mainly for baking, and the pure steaming function cannot be realized.
2 flow-channel steam generators are described in patents cn201620251696.x, cn201420627875.x, CN 201820818168.7. But at present, the following problems exist: (1) because the pipe diameter of the steam generator is small, the air flow speed is fast and the heat is insufficient, the water spraying phenomenon is easy to occur, and the water spraying phenomenon is aggravated after the scale of the steam generator is formed; (2) the scale is very easily carried out from the steam generator by the quick air current and enters the cavity, so that the scale is sprayed to food, bowls and chopsticks or the bottom of the cavity, and poor user experience is caused.
Disclosure of Invention
The invention aims to provide a side wall water boiling type stainless steel steam generator, which solves the problems that the existing steam generator suitable for side wall installation is easy to spray water and scale, difficult to control, limited in power, incapable of meeting the requirements of food safety specifications and the like in different degrees. The invention adopts a special process to die-cast the electric heating tube, the cast aluminum and the stainless steel shell together, and simultaneously adopts a side wall water boiling mode to solve the problems, thereby realizing that the steam generator is difficult to spray water and scale and easy to control, simultaneously realizing high power and meeting the requirement of food safety specification, and improving the integral performance and user experience of the products.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the invention provides a stainless steel steam generator with water boiling on the side wall, which comprises a cavity, a water inlet, a drain outlet, a steam outlet, an upper shell, a heating body, a temperature sensor and a temperature fuse, wherein the water inlet and the drain outlet are arranged on two sides of the bottom of the cavity, the steam outlet is arranged on the top of the cavity,
the cavity is formed by surrounding a front side wall and a rear side wall, the front side wall and the rear side wall are respectively an upper shell and a heating body, and the temperature sensor and the temperature fuse are arranged on the outer wall of the heating body;
the heating body comprises a stainless steel shell, an upper electric heating pipe, a lower electric heating pipe and cast aluminum, wherein the outer wall of the stainless steel shell is provided with a transverse electric heating pipe installation groove, a plurality of protruded electric heating pipe support frames are arranged in the electric heating pipe installation groove, and the upper electric heating pipe and the lower electric heating pipe are respectively positioned in the upper electric heating pipe installation groove and the lower electric heating pipe installation groove and are erected on the electric heating pipe support frames; the outer wall of the stainless steel shell is provided with a connecting piece, one end of the connecting piece is fixed on the stainless steel shell, and the other end of the connecting piece is die-cast into cast aluminum.
Furthermore, the connecting pieces are a plurality of rivets or stainless steel meshes, and the stainless steel meshes are fixed in stainless steel mesh mounting grooves in the outer wall of the stainless steel shell.
Furthermore, a sealing ring is arranged on the contact surface of the upper shell and the heating body, and a pressing plate for tightly closing the upper shell and the heating body is arranged on the edge of the upper shell and the heating body.
Furthermore, a plurality of baffle plates fixed on the inner wall of the upper shell are arranged in the cavity.
Furthermore, the baffle plate comprises an upper baffle plate and a lower baffle plate, the lower baffle plate is obliquely arranged at two sides of the middle part of the upper shell, a gap is reserved in the middle, and the lower baffle plate is inclined towards the middle; the upper baffle plate is positioned in the middle of the upper part of the shell and inclines downwards from the middle to two sides, and theta is 60-85 degrees.
Furthermore, the bottom of the stainless steel shell and the bottom of the upper shell are matched to form an inclined plane, and one side of the water inlet at the bottom of the cavity is higher than one side of the sewage discharge outlet.
Furthermore, a plurality of bulges are punched on the inner wall of the stainless steel shell, and the bulges and the connecting pieces are correspondingly arranged on the inner side and the outer side of the stainless steel shell.
Furthermore, the temperature sensor is arranged on the upper part of the cast aluminum, and the water inlet, the drain outlet and the steam outlet are all positioned on the upper shell.
Furthermore, the pressing plate is made of plastics or metal, and the upper shell is made of food-grade plastics.
Furthermore, the stainless steel shell is made of food-grade stainless steel, the wall thickness is 0.4-1.0 mm, and the diameter of the bulge is 2-15 mm.
The working principle of the steam generator is as follows: water is pumped into the cavity of the steam generator by the water pump from the water inlet, the water is heated and boiled by the heating body to generate steam, the steam and the water are separated by the baffle plate of the upper shell, and dry steam is discharged from the steam outlet at the upper part of the steam generator. After the use, the residual waste water is discharged from the sewage outlet.
By adopting the technical scheme, the invention has the beneficial effects that:
(1) the invention adopts the stainless steel shell and the food-grade plastic upper shell as the water boiling cavity, thereby solving the problem that the die-casting aluminum steam generator is difficult to meet the requirement of food safety specification.
(2) The invention adopts a side wall water boiling mode and is provided with the steam-water separator, thereby solving the problems of easy water spraying and scale deposit of the runner type steam generator.
(3) The invention adopts a large-cavity water boiling mode, and solves the problem that the power of the straight tube type steam generator and the brazing type bottom water boiling steam generator is limited.
(4) The invention adopts the mode of die casting of the electric heating tube, the cast aluminum and the stainless steel shell, has good heat transfer effect, and the temperature sensor senses the temperature and is sensitive, thereby solving the problems of violent boiling and difficult control of the steam generator with the built-in heating tube.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
fig. 1 is a front view of a steam generator of embodiment 1;
FIG. 2 is a view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a rear view of the steam generator of embodiment 1;
FIG. 5 is a rear view of the upper case of embodiment 1;
FIG. 6 is a front view of the heating body of example 1;
FIG. 7 is a back view of the heating body of example 1;
fig. 8 is a front view of the steam generator of embodiment 2;
FIG. 9 is a view from the B-B direction of FIG. 8;
FIG. 10 is a back view of the heating body of example 2;
the respective symbols in the figure are as follows: 1-an upper shell; 2-a heating body; 3-a temperature sensor; 4-temperature fuse; 5, pressing a plate; 6-sealing ring; 11-a water inlet; 12-a sewage draining outlet; 13-steam outlet; 14-upper baffle plate; 15-lower baffle plate; 16-upper housing bottom; 17-a cavity; 21-stainless steel housing; 221-upper electric heating tube; 222-lower electric heating tube; 23-casting aluminum; 24-stainless steel mesh; 25-riveting; 211-protrusions; 212-electric heating tube mounting groove; 213-stainless steel mesh mounting groove; 214-electric heating tube support; 215-stainless steel housing bottom;
wherein theta is an included angle between the baffle plate and the vertical plane.
Detailed Description
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The invention will be further explained with reference to the drawings.
Example 1
As shown in fig. 1 to 7, the side wall water boiling type stainless steel steam generator provided by this embodiment includes a cavity 17, a water inlet 11, a sewage outlet 12, a steam outlet 13, an upper housing 1, a heating body 2, a temperature sensor 3, and a temperature fuse 4. The water inlet and the drain outlet are arranged on two sides of the bottom of the cavity, and the steam outlet is arranged on the top of the cavity. The water inlet, the sewage draining outlet and the steam outlet are all positioned on the upper shell. The upper shell is made of food-grade plastic material. The stainless steel shell is made of food-grade stainless steel, and the wall thickness is selected to be 0.4-1.0 mm.
The cavity is surrounded by front and back both sides wall and forms, and preceding, back lateral wall are upper housing and heating member respectively, and temperature sensor and temperature fuse set up on the heating member outer wall.
The heating body comprises a stainless steel shell 21, an upper electric heating pipe 221, a lower electric heating pipe 222 and cast aluminum 23, wherein the outer wall of the stainless steel shell is provided with a transverse electric heating pipe installation groove 212, a plurality of protruded electric heating pipe support frames 214 are arranged in the electric heating pipe installation groove, and the upper electric heating pipe and the lower electric heating pipe are respectively positioned in the upper electric heating pipe installation groove and the lower electric heating pipe installation groove and are erected on the electric heating pipe support frames; the outer wall of the stainless steel shell is provided with a connecting piece, one end of the connecting piece is fixed on the stainless steel shell, and the other end of the connecting piece is die-cast into cast aluminum. The stainless steel shell, the upper heating pipe, the lower heating pipe, the connecting piece and the cast aluminum are molded by die casting. When in die casting, a part of the upper electric heating tube and the lower electric heating tube is embedded into the electric heating tube mounting groove, so that the whole thickness of the heating body is reduced, and the mounting requirement of the side wall of the whole machine is met. The electric heating tube supporting grooves are used for supporting the upper electric heating tube and the lower electric heating tube respectively, so that the electric heating tubes are prevented from being in large-area direct contact with the stainless steel shell, and the heating body can be prevented from being locally overheated.
The connecting pieces are a plurality of stainless steel nets 24 which are fixed in three sets of stainless steel net mounting grooves 213 on the outer wall of the stainless steel shell. The heating body is fixed on the stainless steel shell by spot welding with the stainless steel mesh before die casting. Because the thermal expansion coefficients of stainless steel and aluminum alloy are different, the stainless steel shell and the cast aluminum are not easy to be pressed together. The stainless steel net is firstly fixed on the stainless steel shell, and then the stainless steel net is integrally die-cast into the cast aluminum, so that the stainless steel shell and the cast aluminum can be prevented from being separated when the heating body is subjected to cold and hot impact.
The contact surface of the upper shell and the heating body is provided with a sealing ring 6, the edges of the upper shell and the heating body are provided with a pressing plate 5 for fixedly connecting the upper shell and the heating body, and the pressing plate is pressed on the back surface of the heating body during installation. The pressing plate is made of plastic or metal.
A plurality of baffle plates fixed on the inner wall of the upper shell are arranged in the cavity. The baffles comprise an upper baffle 14 and a lower baffle 15. The lower baffle plates are obliquely arranged at two sides of the middle part of the upper shell, a gap is reserved in the middle, and the lower baffle plates are all inclined towards the middle. The upper baffle plate is positioned in the middle of the upper part of the shell and inclines downwards from the middle to two sides, and theta is 60-85 degrees. During operation, the steam-water mixture firstly passes through the middle gap of the lower baffle plate and reaches the upper baffle plate, then is shunted, liquid drops are blocked, and dry steam flows out from two sides and is collected to the steam outlet to flow out. The baffle plates are arranged obliquely downwards to ensure that liquid drops blocked by the baffle plates can flow back to the bottom of the cavity.
The stainless steel shell bottom 215 and the upper shell bottom 16 are matched to form an inclined plane, and one side of the water inlet at the bottom of the cavity is higher than one side of the sewage outlet. The height of the water inlet is higher than that of the sewage draining outlet, and waste water in the cavity is discharged.
The inner wall of the stainless steel shell is stamped with a plurality of protrusions 211, and the protrusions and the connecting pieces are correspondingly arranged on the inner side and the outer side of the stainless steel shell. The total heat exchange area of the stainless steel shell is increased, and the whole volume of the steam generator is reduced. The diameter of the bulge is 2-15 mm.
The temperature sensor is arranged on the upper part of the cast aluminum. Because the temperature sensing at the top of the heating body is relatively sensitive, the water level in the cavity of the steam generator can be accurately controlled.
Example 2
As shown in fig. 8 to 10, unlike embodiment 1, the connector in this embodiment is a rivet 25, one end of which is first welded to the stainless steel shell and finally die-cast with the cast aluminum, so as to improve the fastening between the stainless steel shell and the cast aluminum, and further improve the safety and stability of the steam generator.
It should be understood that the above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents may be made in the technical solutions described in the foregoing embodiments, or some technical features may be substituted. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A side wall water boiling type stainless steel steam generator comprises a cavity (17), a water inlet (11), a sewage draining exit (12), a steam outlet (13), an upper shell (1), a heating body (2), a temperature sensor (3) and a temperature fuse (4), wherein the water inlet (11) and the sewage draining exit (12) are arranged at two sides of the bottom of the cavity (17), the steam outlet (13) is arranged at the top of the cavity (17),
the cavity (17) is formed by surrounding a front side wall and a rear side wall, the front side wall and the rear side wall are respectively an upper shell (1) and a heating body (2), and the temperature sensor (3) and the temperature fuse (4) are arranged on the outer wall of the heating body (2);
the heating body comprises a stainless steel shell (21), an upper electric heating pipe (221), a lower electric heating pipe (222) and cast aluminum (23), wherein the outer wall of the stainless steel shell (21) is provided with a transverse electric heating pipe installation groove (212), a plurality of convex electric heating pipe support frames (214) are arranged in the electric heating pipe installation groove (212), and the upper electric heating pipe (221) and the lower electric heating pipe (222) are respectively positioned in the upper electric heating pipe installation groove (212) and the lower electric heating pipe installation groove (212) and are erected on the electric heating pipe support frames (; the outer wall of the stainless steel shell (21) is provided with a connecting piece, one end of the connecting piece is fixed on the stainless steel shell (21), and the other end of the connecting piece is cast into cast aluminum (23).
2. The side wall water boiling type stainless steel steam generator according to claim 1, wherein the connecting member is a plurality of rivets or stainless steel nets (24), and the stainless steel nets (24) are fixed in stainless steel net mounting grooves (213) of the outer wall of the stainless steel case (21).
3. The stainless steel steam generator with water boiling on the side wall of claim 2 is characterized in that a sealing ring (6) is arranged on the contact surface of the upper shell (1) and the heating body (2), and a pressing plate (5) for locking the upper shell (1) and the heating body (2) is arranged on the edge of the upper shell.
4. A side wall boiling stainless steel steam generator according to claim 2, wherein a plurality of baffles are arranged in the chamber (17) and fixed to the inner wall of the upper housing (1).
5. The side wall water boiling type stainless steel steam generator according to claim 4, wherein the baffle plate comprises an upper baffle plate (14) and a lower baffle plate (15), the lower baffle plate (15) is obliquely arranged at two sides of the middle part of the upper shell (1), a gap is reserved in the middle, and the lower baffle plate (15) is obliquely arranged towards the middle; the upper baffle plate (14) is positioned in the middle of the upper part of the shell and slants downwards from the middle to two sides, and theta is 60-85 degrees.
6. A side wall boiling stainless steel steam generator according to any of claims 2 to 5, characterized in that the stainless steel housing bottom (215) and the upper housing bottom (16) cooperate to form an inclined surface, and the side of the water inlet (11) at the bottom of the cavity (17) is higher than the side of the sewage draining exit (12).
7. A side wall boiling type stainless steel steam generator according to claim 2, wherein a plurality of protrusions (211) are punched on the inner wall of the stainless steel shell (21), and the protrusions (211) and the connecting members are correspondingly arranged on the inner side and the outer side of the stainless steel shell (21).
8. A side wall boiling stainless steel steam generator according to any of claim 7, characterized in that the temperature sensor (3) is arranged on the upper part of the cast aluminum (23), and the water inlet (11), the sewage drain (12) and the steam outlet (13) are all positioned on the upper shell (1).
9. A side wall boiling stainless steel steam generator according to claim 8, wherein the pressure plate (5) is made of plastic or metal and the upper housing (1) is made of food grade plastic.
10. The stainless steel steam generator with side wall boiling water of any one of claims 7 to 9, wherein the stainless steel shell (21) is made of food grade stainless steel, the wall thickness is selected to be 0.4 to 1.0mm, and the diameter of the bulge (211) is 2 to 15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010332754.2A CN111594814A (en) | 2020-04-24 | 2020-04-24 | Side wall water boiling type stainless steel steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010332754.2A CN111594814A (en) | 2020-04-24 | 2020-04-24 | Side wall water boiling type stainless steel steam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111594814A true CN111594814A (en) | 2020-08-28 |
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ID=72187686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010332754.2A Withdrawn CN111594814A (en) | 2020-04-24 | 2020-04-24 | Side wall water boiling type stainless steel steam generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN111594814A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030476A (en) * | 2020-09-02 | 2020-12-04 | 安徽苏立科技股份有限公司 | Steam generator applied to washing machine |
-
2020
- 2020-04-24 CN CN202010332754.2A patent/CN111594814A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030476A (en) * | 2020-09-02 | 2020-12-04 | 安徽苏立科技股份有限公司 | Steam generator applied to washing machine |
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Application publication date: 20200828 |