CN111536493A - Steam generator and cooking device - Google Patents
Steam generator and cooking device Download PDFInfo
- Publication number
- CN111536493A CN111536493A CN202010460042.9A CN202010460042A CN111536493A CN 111536493 A CN111536493 A CN 111536493A CN 202010460042 A CN202010460042 A CN 202010460042A CN 111536493 A CN111536493 A CN 111536493A
- Authority
- CN
- China
- Prior art keywords
- heater
- heat exchange
- heat
- exchange tube
- steam generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F22B1/282—Methods of steam generation characterised by form of heating method in boilers heated electrically with water or steam circulating in tubes or ducts
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
- F22G3/006—Steam superheaters with heating tubes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
- A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cookers (AREA)
Abstract
The present invention provides a steam generator and a cooking apparatus, the steam generator including: a first heater; the first heat exchange tube is arranged on the peripheral side of the first heater, extends from one end of the first heater to the other end of the first heater, and extends from the other end of the first heater back to one end of the first heater; and the heat conductor is arranged between the first heater and the first heat exchange tube. Through reciprocating the setting in the week side of first heater with first heat exchange tube, can balance the heat transfer volume of first heater week side, guarantee the heat evenly distributed on the heat conductor to avoid appearing because of the heat of heat conductor distributes inequality, the poor problem of heating stability who arouses. And then realized optimizing first heat exchange tube distribution mode, promoted first heater and heat conductor stability in the heating process, reduced steam generator's fault rate, promoted steam generator operational safety and the technical effect of reliability.
Description
Technical Field
The invention relates to the technical field of cooking equipment, in particular to a steam generator and cooking equipment.
Background
The application of steam to products such as steam boxes, ironing machines, steam mops and the like is more and more extensive, and a steam generator with small volume, high power and low cost is a future trend. At present, the steam generator for household appliances on the market is large in size and high in cost, and the heat exchange quantity in the water pipe is not uniformly distributed, so that the steam generator is poor in heating stability and easy to break down.
Therefore, how to design a steam generator with small volume, high heating efficiency and strong heating stability is an urgent technical problem to be solved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the present invention provides a steam generator.
A second aspect of the present invention provides a cooking apparatus.
In view of this, a first aspect of the present invention proposes a steam generator including: a first heater; the first heat exchange tube is arranged on the peripheral side of the first heater, extends from one end of the first heater to the other end of the first heater, and extends from the other end of the first heater back to one end of the first heater; and the heat conductor is arranged between the first heater and the first heat exchange tube.
In the steam generator provided by the invention, the heat conductor is arranged between the first heater and the first heat exchange tube, and the gap between the first heater and the first heat exchange tube can be filled with the heat conductor, so that the heat generated by the first heater is prevented from being radiated to the air, and the heating efficiency is further improved. According to the flow direction of liquid in the first heat exchange tube and the liquid heating stage, the first heat exchange tube is sequentially divided into a supercooling section and a boiling section, the heat absorbed by the liquid in the supercooling section is less, and a large amount of heat is absorbed in the boiling section. Through reciprocating the setting in week side of first heater with first heat exchange tube, can guarantee to be located the supercooling section of first heat exchange tube anterior segment and the boiling section that is located first heat exchange tube back end and distribute in same one side of first heater to the heat transfer capacity of balanced first heater week side guarantees the heat evenly distributed on the heat conductor, thereby avoids appearing because of the heat of heat conductor distributes inequality, the poor problem of the heating stability that arouses. And then realized optimizing first heat exchange tube distribution mode, promoted first heater and heat conductor stability in the heating process, reduced steam generator's fault rate, promoted steam generator operational safety and the technical effect of reliability.
In addition, the steam generator in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, further, the first heat exchange tube includes: the first spiral coil is coiled on the periphery of the first heater; and the second spiral coil is coiled on the peripheral side of the first heater, and is connected with the first spiral coil at the other end of the first heater.
In this technical scheme, first spiral coil and second spiral coil around on first heater with the form of whorl all around of first heater, through setting up first heat exchange tube into spiral coil, banned the heat exchange tube of bending of making through the pipeline technology of buckling, the angle of turning on the first heat exchange tube of spiral coil is less, can not receive the angle restriction on the pipeline technology of buckling, and the first heat exchange tube of spiral formula can effectively utilize the space of all around of first heater, guarantee that first heat exchange tube is covered with the all around space of first heater as far as.
Meanwhile, the first spiral coil and the second spiral coil are connected at one end of the first heater, the first heat exchange tube extending in a reciprocating mode is formed on the peripheral side of the first heater, and liquid flows to the initial end from the other end of the first heater through the second heat exchange tube after flowing to the other end from one end of the first heater through the first heat exchange tube, so that the heat exchange stability of the first spiral coil and the second spiral coil is guaranteed. And then realized optimizing first heat exchange tube structure, promoted the space utilization of first heat exchange tube, improved the heat transfer area in the unit volume, improved steam generator volume power density, promoted heating efficiency, reduced the technical effect of steam generator volume.
In any of the above technical solutions, further, the first spiral coil and the second spiral coil have opposite spiral directions.
In this technical scheme, the spiral opposite direction through setting up first spiral coil and second spiral coil can make first spiral coil and second spiral coil set up in the week side space of same first heater, and avoids first spiral coil and second spiral coil to interfere each other to make the structure of first heat exchange tube compacter, further promote the heat transfer area of first heat exchange tube in the unit volume. And then realize optimizing first heat exchange tube structure, reinforce first heat exchange tube heat exchange efficiency, promote steam generator volume power density, promote heating efficiency, reduce the technical effect of steam generator volume.
In any of the above technical solutions, further, the heat conductor is a cast and formed integrated structure.
In this technical scheme, through injecing the heat conductor for the fashioned integral type structure of casting, can ensure on the one hand that the heat conductor fills the gap between first heat exchange tube and the first heater, avoid causing calorific loss because of the structure gap, the assembly process of heat conductor can be removed from to the fashioned heat conductor of on the other hand casting to reduce the steam generator assembly degree of difficulty, reduce manufacturing cost. In addition, the integral structure does not have a structural section, and even if the heat conductor is influenced by heat fluctuation in the heating process, structural dislocation and structural fracture can not occur, so that the stability and the reliability of the heat conductor are improved. And then realized optimizing heat conductor structure and production mode, reduced first heater calorific loss, promoted heat conductor thermal conductivity and job stabilization nature, reduced steam generator manufacturing cost's technological effect.
In any of the above technical solutions, further, the steam generator further includes: and the steam superheater is connected with the first heat exchange pipe and is configured to heat the steam discharged by the first heat exchange pipe.
In the technical scheme, a steam superheater is separately arranged outside the first heater and the first heat exchange pipe, and a process of heating steam to superheated steam is separated from the first heater and the first heat exchange pipe. If directly heat steam to superheated state through first heater and first heat exchange tube, can appear the uneven phenomenon of heat transfer volume distribution because of steam absorbs the too little heat at the superheated section, cause the pulsation of production temperature and pressure in the first heat exchange tube, influence the stable output of steam. The steam superheater is arranged independently, so that the problem is solved, and the interference of the steam superheating process on the work of the first heater and the first heat exchange tube is avoided. And then realized optimizing steam generator structure, promoted steam generator job stabilization nature and reliability, extension steam generator life's technological effect.
In any of the above technical solutions, further, the steam superheater includes: the second heat exchange tube is communicated with the first heat exchange tube; and the second heating device is connected with the second heat exchange tube and heats the second heat exchange tube.
In this technical scheme, second heating device is connected with the second heat exchange tube for heat the second heat exchange tube, make the second heat exchange tube heat up the back with heat transfer to inside steam, thereby the heating obtains superheated steam, with the cooking of food is accomplished to high efficiency through superheated steam, and then realizes optimizing steam generator structure, accelerates the cooking rate of output steam, promotes the technological effect of cooking quality.
In any of the above technical solutions, further, the second heating device includes: the sleeve is sleeved on the second heat exchange tube, and the sleeve and the second heat exchange tube are arranged at intervals; and the heating wire is arranged between the sleeve and the second heat exchange tube, and is spirally wound on the second heat exchange tube.
In the technical scheme, the second heating device comprises a sleeve and a heating wire, the sleeve is sleeved on the second heat exchange tube and ensures that a gap is reserved between the second heat exchange tube and the sleeve, the heating wire is arranged in the gap between the sleeve and the second heat exchange tube, and the heater is spirally wound on the second heat exchange tube in the gap. Can inject the heating space in the week side of second heat exchange tube through setting up the sleeve pipe to realize the concentrated heating of second heat exchange tube, avoid the heat to run off, promote heating efficiency. Through coiling the heater strip spiral on the second heat exchange tube, can promote heater strip length in the unit volume, improve unit heat transfer area to improve second heating device's heating efficiency. And then realized optimizing second heating device structure, reduced second heating device energy consumption, promoted second heating device heating efficiency's technical effect.
In any of the above technical solutions, further, the heat conductor is an aluminum heat conductor.
In this technical scheme, the heat conductor is cast aluminium spare, and aluminium possesses good heat conductivility, and density is lower, can reduce steam generator's weight when satisfying the heat transfer demand. In addition, the aluminum has excellent anti-corrosion performance, and can prevent the heat conductor from being corroded by water vapor generated in the heat exchange process, so that the stability and the reliability of the heat conductor are improved. And then realized optimizing the heat conductor structure, promoted steam generator job stabilization nature, alleviateed steam generator weight, extension steam generator life's technical effect.
In any of the above technical solutions, further, the first heater is an electric heating tube.
In the technical scheme, the first heater is an electric heating pipe, and the electric heating pipe is heated in a power-on state to heat the heat conductor and the first heat exchange pipe, so that the liquid flowing into the first heat exchange pipe is heated to a steam state.
According to a second aspect of the present invention, there is provided a cooking apparatus comprising: the steam generator in any one of the above technical schemes; the water tank is communicated with one end of the first heat exchange pipe; the cooking box is provided with a cooking cavity, and the other end of the first heat exchange tube is communicated with the cooking cavity.
In the technical scheme, the cooking equipment applying the steam generator provided by the invention is limited, in the working process, after food is placed in the cooking box, the water tank supplies water to the interior of the steam generator, the water is heated to a steam state by the first heater in the first heat exchange pipe, then the steam is heated to be superheated steam in the steam superheater, and finally the superheated steam is filled in the space in the cooking box to wrap and heat the food in the cooking box, so that the temperature of the food is rapidly raised, and the cooking of the food is completed.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 illustrates an exploded view of a steam generator according to an embodiment of the present invention;
FIG. 2 shows a schematic block diagram of a steam superheater according to an embodiment of the present invention;
FIG. 3 shows a cross-sectional view in the A-A direction of a steam superheater in the embodiment as shown in FIG. 2.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
1 steam generator, 10 first heater, 20 first heat exchange tube, 202 first spiral coil, 204 second spiral coil, 30 heat conductor, 40 steam superheater, 42 second heat exchange tube, 44 second heating device, 442 sleeve, 444 heating wire and 446 insulator.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A steam generator 1 and a cooking apparatus according to some embodiments of the present invention are described below with reference to fig. 1 to 3.
The first embodiment is as follows:
as shown in fig. 1, according to an embodiment of a first aspect of the present invention, the present invention proposes a steam generator 1, the steam generator 1 including: a first heater 10; a first heat exchanging pipe 20 disposed at a peripheral side of the first heater 10, the first heat exchanging pipe 20 extending from one end of the first heater 10 to the other end of the first heater 10 and extending from the other end of the first heater 10 back to one end of the first heater 10; and a heat conductor 30 disposed between the first heater 10 and the first heat exchanging pipe 20.
The steam generator 1 includes a first heater 10, a first heat exchanging pipe 20, and a heat conductor 30. The first heat exchange tube 20 is arranged on the periphery of the first heater 10, the heat conductor 30 is arranged between the first heater 10 and the first heat exchange tube 20, in the working process, the first heater 10 emits heat, the heat is transferred to the first heat exchange tube 20 through the heat conductor 30, the first heat exchange tube 20 is heated, the heated first heat exchange tube 20 transfers the heat to liquid in the first heat exchange tube 20, the liquid is gradually heated, and finally steam is generated. Through set up heat conductor 30 between first heater 10 and first heat exchange tube 20, can fill the gap between first heating body and the first heat exchange tube 20 through heat conductor 30 to avoid the heat that first heater 10 produced to give off to the air in, and then promote heating efficiency.
On the basis, the distribution of the first heat exchange tube 20 on the periphery side of the first heat exchanger is further defined, and the first heat exchange tube 20 extends from one end of the first heater 10 to the other end and then extends from the other end back to the initial end, so that the first heat exchange tube 20 which is folded back and forth is formed on the periphery side of the first heater 10. According to the flow direction of the liquid in the first heat exchange tube 20 and the liquid heating stage, the first heat exchange tube 20 is sequentially divided into a supercooling section and a boiling section, the heat absorbed by the liquid in the supercooling section is less, and a large amount of heat is absorbed in the boiling section. Through reciprocating the first heat exchange tube 20 and setting up in week side of first heater 10, can guarantee that the section of subcooling that is located first heat exchange tube 20 anterior segment and the boiling section that is located first heat exchange tube 20 back end distribute in same one side of first heater 10 to the heat exchange capacity of balanced first heater 10 week side guarantees the heat evenly distributed on the heat conductor 30, thereby avoids appearing because of the heat distribution of heat conductor 30 is uneven, the poor problem of heating stability that arouses. Therefore, the distribution mode of the first heat exchange tubes 20 is optimized, the stability of the first heater 10 and the heat conductor 30 in the heating process is improved, the failure rate of the steam generator 1 is reduced, and the working safety and reliability of the steam generator 1 are improved.
Example two:
as shown in fig. 1, according to an embodiment of the second aspect of the present invention, a first heat exchange pipe 20 includes: a first spiral coil 202 wound around the first heater 10; a second spiral coil 204 wound around the first heater 10, the second spiral coil 204 being connected to the first spiral coil 202 at the other end of the first heater 10;
the first helical coil 202 and the second helical coil 204 are oppositely spiraled.
The embodiment receives the technical solution of the first embodiment, and specifically provides a structure of a first heat exchange tube 20, wherein the first heat exchange tube 20 is formed by connecting two spiral coils with opposite rotation directions to form a bidirectional spiral first heat exchange tube 20.
In this embodiment, the first heat exchanging pipe 20 includes a first spiral coil 202 and a second spiral coil 204, and the first spiral coil 202 is wound around the circumference of the first heater 10 from one end of the first heater 10 to the other end. The second spiral coil 204 is also wound around the circumference of the first heater 10 and is wound from one end of the first heater 10 to the other end. Wherein the first helical coil 202 and the second helical coil 204 are connected at the same end of the heat exchanger to form a reciprocating extending helical coil. The first spiral coil 202 and the second spiral coil 204 are wound on the first heater 10 in a spiral line form around the first heater 10, the first heat exchange tube 20 is set as the spiral coil, the bent heat exchange tube manufactured by the tube bending process is replaced, the bending angle of the spirally wound first heat exchange tube 20 is small, the angle limitation of the tube bending process is avoided, the spirally wound first heat exchange tube 20 can effectively utilize the space around the first heater 10, and the first heat exchange tube 20 is guaranteed to be distributed in the space around the first heater 10 as much as possible. Meanwhile, by connecting the first spiral coil 202 and the second spiral coil 204 at one end of the first heater 10, the first heat exchange tube 20 extending to and fro is formed at the peripheral side of the first heater 10, and after the liquid flows from one end of the first heater 10 to the other end by the first heat exchange tube 20, the liquid flows from the other end of the first heater 10 to the initial end by the second heat exchange tube, thereby ensuring the heat exchange stability of the first spiral coil 202 and the second spiral coil 204. And then realized optimizing first heat exchange tube 20 structure, promoted first heat exchange tube 20's space utilization, improved the heat transfer area in the unit volume, improved steam generator 1 volume power density, promoted heating efficiency, reduced the technical effect of steam generator 1 volume.
The first helical coil 202 and the second helical coil 204 are oppositely helical with respect to the first heater 10. The first spiral coil 202 and the second spiral coil 204 with opposite spiral directions form the first heat exchanging pipe 20 distributed like a double thread on the peripheral side of the first heater 10. The opposite spiral directions of the first spiral coil 202 and the second spiral coil 204 are arranged, so that the first spiral coil 202 and the second spiral coil 204 are arranged in the peripheral space of the same first heater 10, and the mutual interference of the first spiral coil 202 and the second spiral coil 204 is avoided, so that the structure of the first heat exchange tube 20 is more compact, and the heat exchange area of the first heat exchange tube 20 in unit volume is further improved. And then realize optimizing first heat exchange tube 20 structure, strengthen first heat exchange tube 20 heat exchange efficiency, promote 1 volume power density of steam generator, promote heating efficiency, reduce the technical effect of 1 volume of steam generator.
Example three:
according to an embodiment of the third aspect of the present invention, the heat conductor 30 is a cast-molded one-piece structure;
the heat conductor 30 is an aluminum heat conductor 30.
The embodiment is specifically limited in material, structure and production process of the heat conductor 30.
In this embodiment, the heat conductor 30 is a cast, one-piece structure. In the production process, the first heat exchanging pipe 20 is first positioned at a position opposite to the circumferential side of the first heater 10, and then the heat conductor 30 is cast based on the positioned first heater 10 and the outer surface of the first heat conductive pipe. Through injecing heat conductor 30 for the fashioned integral type structure of casting, can ensure on the one hand that heat conductor 30 fills the gap between first heat exchange tube 20 and the first heater 10, avoid causing calorific loss because of the structure gap, on the other hand cast fashioned heat conductor 30 can remove heat conductor 30's assembly process from to reduce steam generator 1 and assemble the degree of difficulty, reduce manufacturing cost. In addition, the integral structure does not have a structural section, and even if the heat conductor 30 is influenced by heat fluctuation in the heating process, structural dislocation and structural fracture cannot occur, so that the stability and reliability of the heat conductor 30 are improved. And then realized optimizing heat conductor 30 structure and mode of production, reduced first heater 10 calorific loss, promoted heat conductor 30 heat conductivility and job stabilization nature, reduced steam generator 1 manufacturing cost's technological effect.
The heat conductor 30 is an aluminum casting, aluminum has excellent heat conductivity, and the density is low, so that the weight of the steam generator 1 can be reduced while the heat exchange requirement is met. In addition, aluminum has excellent corrosion resistance, and can prevent the heat conductor 30 from being corroded by water vapor generated in the heat exchange process, thereby improving the stability and reliability of the heat conductor 30. And then realized optimizing heat conductor 30 structure, promoted steam generator 1 job stabilization nature, alleviateed steam generator 1 weight, extension steam generator 1 life's technical effect.
Example four:
as shown in fig. 1 and 2, according to an embodiment of the fourth aspect of the present invention, the steam generator 1 further includes: and a steam superheater 40 connected to the first heat exchange pipe 20, the steam superheater 40 being configured to heat steam discharged from the first heat exchange pipe 20.
The steam superheater 40 includes: a second heat exchange tube 42 communicating with the first heat exchange tube 20; and a second heating device 44 connected to the second heat exchanging pipe 42, the second heating device 44 heating the second heat exchanging pipe 42.
This embodiment proposes that a separate steam superheater 40 is provided on the steam generator 1, and preliminarily defines the structure and connection relationship of the steam superheater 40.
In this embodiment, the steam generator 1 is further provided with a steam superheater 40, the steam superheater 40 is connected to the outlet end of the first heat exchange tube 20, and during operation, the liquid is heated to a steam state in the first heat exchange tube 20, and then flows into the steam superheater 40, and is further heated in the steam superheater 40 to form superheated steam. The process of heating steam to superheated steam is stripped from the first heater 10 and the first heat exchanging pipe 20 by separately providing a steam superheater 40 outside the first heater 10 and the first heat exchanging pipe 20. If the steam is directly heated to the superheated state by the first heater 10 and the first heat exchange tube 20, the heat exchange amount is unevenly distributed due to too little heat absorbed by the steam at the superheated section, so that the temperature and pressure pulsation is generated in the first heat exchange tube 20, and the stable output of the steam is affected. The present invention solves this problem by separately providing the steam superheater 40, and prevents the steam superheating process from interfering with the operation of the first heater 10 and the first heat exchange pipe 20. And then realized optimizing steam generator 1 structure, promoted 1 job stabilization nature and reliability of steam generator, prolonged 1 life's of steam generator technical effect.
The steam superheater 40 includes a second heat exchange pipe 42 and a second heating device 44. The second heat exchanging pipe 42 communicates with the first heat exchanging pipe 20, and the steam discharged from the first heat exchanging pipe 20 flows into the second heat exchanging pipe 42. The second heating device 44 is connected with the second heat exchange tube 42 and used for heating the second heat exchange tube 42, so that the second heat exchange tube 42 heats up and transfers heat to the steam inside, thereby obtaining superheated steam by heating, efficiently completing cooking of food through the superheated steam, further realizing optimization of the structure of the steam generator 1, accelerating the cooking rate of the produced steam and improving the technical effect of cooking quality.
Example five:
as shown in fig. 1 and 2, according to an embodiment of the fifth aspect of the present invention, the second heating device 44 includes: a sleeve 442 sleeved on the second heat exchange tube 42, the sleeve 442 and the second heat exchange tube 42 being disposed at an interval; a heating wire 444 disposed between the sleeve 442 and the second heat exchanging pipe 42, the heating wire 444 being spirally wound around the second heat exchanging pipe 42;
an insulator 446 is filled between the inner wall surface of the sleeve 442 and the outer surface of the heater wire 444.
This embodiment specifically defines the structure of the second heating means 44.
In this embodiment, the sleeve 442 is sleeved on the second heat exchanging tube 42 and ensures a gap is left between the second heat exchanging tube 42 and the sleeve 442, the heating wire 444 is disposed in the gap between the sleeve 442 and the second heat exchanging tube 42, and the heater is spirally wound on the second heat exchanging tube 42 in the gap. The heating space can be limited on the peripheral side of the second heat exchange tube 42 by arranging the sleeve 442, so that the concentrated heating of the second heat exchange tube 42 is realized, the heat loss is avoided, and the heating efficiency is improved. By spirally winding the heating wire 444 on the second heat exchanging pipe 42, the length of the heating wire 444 per unit volume can be increased, the heat exchanging area per unit volume can be increased, and thus the heating efficiency of the second heating device 44 can be improved. And further, the technical effects of optimizing the structure of the second heating device 44, reducing the energy consumption of the second heating device 44 and improving the heating efficiency of the second heating device 44 are achieved. In addition, the insulation 446 is filled between the bushing 442 and the heating wire 444, so that current leakage on the heating wire 444 can be effectively avoided, and a short circuit of the steam generator 1 caused by a steam overheating device is avoided, thereby improving the working safety and reliability of the steam generator 1.
Example six:
as shown in fig. 1, according to an embodiment of the sixth aspect of the present invention, the first heater 10 is an electric heating tube.
In this embodiment, the first heater 10 is an electric heating tube which is warmed in an energized state to heat the heat conductor 30 and the first heat exchanging tube 20, so that the liquid flowing into the first heat exchanging tube 20 is heated to a vapor state.
Wherein, the electric heating pipe is bent, and the electric heating pipe that is bent can improve the heat transfer area in the unit volume between first heater 10 and the first heat exchange tube 20 to advance one promotion first heater 10's heating efficiency. Further, the technical effects of optimizing the structure of the first heater 10, improving the heating power of the first heater 10 and reducing the volume of the steam generator 1 are achieved.
Example seven:
according to an embodiment of a seventh aspect of the present invention, there is provided a cooking apparatus including: the steam generator 1 in any one of the above technical solutions; a water tank communicating with one end of the first heat exchange pipe 20; the cooking box is provided with a cooking cavity, and the other end of the first heat exchange pipe 20 is communicated with the cooking cavity.
This embodiment defines a cooking apparatus to which the steam generator 1 of any of the above embodiments is applied, and particularly defines necessary working structures in the cooking apparatus.
In this embodiment, a cooking apparatus to which the proposed steam generator 1 is applied is defined, the cooking apparatus including the steam generator 1, a water tank and a cooking chamber. The water tank communicates with the inlet end of the first heat exchange tube 20 of the steam generator 1 for supplying water to the steam generator 1. The cooking chamber is communicated with an outlet end of the steam generator 1 for placing and cooking food inside. In the working process, after food is placed in the cooking box, the water tank supplies water to the interior of the steam generator 1, the water is heated to a steam state by the first heater 10 in the first heat exchange pipe 20, then the steam is heated to superheated steam in the steam superheater 40, and finally the superheated steam is filled in the space in the cooking box to wrap and heat the food in the cooking box, so that the food is rapidly heated, and the cooking of the food is completed.
Example eight:
in one embodiment of the invention:
fig. 1 is an exploded view of a steam generator 1, which includes a first heat exchanging pipe 20 made of stainless steel, a heat conducting member made of cast aluminum, a first heater 10, and a steam superheater 40.
In fig. 1, the first heat exchanging pipe 20 is located in the heat conducting body 30 after the position of the first heat exchanging pipe 20 is fixed relative to the first heater 10, and the first heat exchanging pipe 20 is connected with the steam superheater 40 through a water pipe. The heat of the first heater 10 is conducted to the first heat exchange tube 20 through the heat conductor 30, water enters from one end of the first heat exchange tube 20, and after three stages of supercooling, saturation boiling and micro-superheating, finally generated superheated steam flows out from the other end of the first heat exchange tube 20 and enters the steam superheater 40 to generate high-temperature superheated steam.
Wherein first heat exchange tube 20 adopts both ends spiral winding, has solved because of the pipe bending process restriction, and bend radius can not too little problem, and both ends spiral winding method can effectual utilization space, improves steam generator 1 unit volume's heat transfer area to can improve steam generator 1's volume power density.
The supercooling section of the first heat exchange tube 20 is much less than the heat absorbed by the boiling section, the supercooling section and the boiling section of the conventional steam generator 1 are respectively arranged at two ends of the heat conductor 30, and the heat productivity of each part of the heat conductor 30 is not greatly different, so that the heat absorption capacity at the two ends is greatly different, and the heat distribution on the heat conductor 30 is easily uneven, thereby the stability of the steam generator 1 is poor.
In the process of the steam from supercooling to saturated boiling to superheating, the heat absorbed by the boiling section of the first heat exchange tube 20 is the largest, and the heat absorbed by the superheating section is the smallest, and if the supercooling, the saturation and the superheating are in the same heating module, the pressure and the temperature of the steam generator 1 are easily pulsated due to the nonuniform heat, so that the steam cannot be stably generated.
Fig. 2 and 3 are a schematic structural view and a sectional view of the steam superheater 40, and the steam superheater 40 includes a heating wire 444, an insulator 446, a bushing 442, and a second heat exchange pipe 42.
The heating wire 444 is positioned between the second heat exchanging pipe 42 and the sleeve, an insulator 446 is filled between the second heat exchanging pipe 42 and the sleeve, and the heat of the heating wire 444 is conducted to the second heat exchanging pipe 42 through the insulator 446 to heat the steam, thereby superheating the steam. Compared with the traditional heater, the superheater has the advantages of small volume and high heating efficiency, and meanwhile, has the high temperature resistance which the thick film heater does not have.
Example nine:
according to an embodiment of the ninth aspect of the present invention, the cooking apparatus is a steam box which rapidly heats the food by high temperature steam emitted from the steam generator 1.
In the operation process, the steam box controls the power of the first heater 10 according to the type of food put in by the user or the control instruction input by the user, so as to generate steam meeting the temperature requirement. When food put into the steam cooker needs to be heated by high-temperature superheated steam, the steam box controls the steam superheater 40 on the steam generator 1 to work and cooperates with the first heater 10 to obtain the high-temperature superheated steam, so that the high-temperature cooking of the food is ensured, and the quality of the food is improved.
In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 steam generator, comprising:
a first heater;
the first heat exchange tube is arranged on the peripheral side of the first heater, extends from one end of the first heater to the other end of the first heater, and extends from the other end of the first heater back to the one end of the first heater;
and the heat conductor is arranged between the first heater and the first heat exchange tube.
2. The steam generator of claim 1, wherein the first heat exchange tube comprises:
a first spiral coil pipe wound around the first heater;
and the second spiral coil is arranged on the peripheral side of the first heater in a winding mode, and the other end of the second spiral coil is connected with the first spiral coil.
3. The steam generator of claim 2, wherein the first helical coil and the second helical coil have opposite helical directions.
4. The steam generator of claim 1, wherein the heat conductor is a cast, one-piece structure.
5. The steam generator of claim 1, further comprising:
and the steam superheater is connected with the first heat exchange pipe and is configured to heat the steam discharged by the first heat exchange pipe.
6. The steam generator of claim 5, wherein the steam superheater comprises:
the second heat exchange tube is communicated with the first heat exchange tube;
and the second heating device is connected with the second heat exchange tube and heats the second heat exchange tube.
7. The steam generator of claim 6, wherein the second heating device comprises:
the sleeve is sleeved on the second heat exchange tube, and the sleeve and the second heat exchange tube are arranged at intervals;
the heating wire is arranged between the sleeve and the second heat exchange tube and is spirally wound on the second heat exchange tube.
8. The steam generator of any of claims 1 to 7, wherein the thermal conductor is an aluminum thermal conductor.
9. The steam generator of any of claims 1 to 7, wherein the first heater is an electrically heated tube.
10. A cooking apparatus, characterized by comprising:
the steam generator of any of claims 1 to 9;
the water tank is communicated with one end of the first heat exchange tube;
the cooking box is provided with a cooking cavity, and the other end of the first heat exchange tube is communicated with the cooking cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460042.9A CN111536493A (en) | 2020-05-27 | 2020-05-27 | Steam generator and cooking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460042.9A CN111536493A (en) | 2020-05-27 | 2020-05-27 | Steam generator and cooking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111536493A true CN111536493A (en) | 2020-08-14 |
Family
ID=71974473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010460042.9A Pending CN111536493A (en) | 2020-05-27 | 2020-05-27 | Steam generator and cooking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111536493A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045696A (en) * | 2021-10-15 | 2022-02-15 | 宁波亚洲浆纸业有限公司 | Cooking device and papermaking equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001263667A (en) * | 2000-03-21 | 2001-09-26 | Matsushita Electric Ind Co Ltd | Superheated cooking apparatus |
| CN101660748A (en) * | 2009-09-11 | 2010-03-03 | 美的集团有限公司 | Steam generating device |
| CN102783907A (en) * | 2011-05-20 | 2012-11-21 | 松下电器产业株式会社 | Cooking appliance |
| CN103267274A (en) * | 2013-06-08 | 2013-08-28 | 广州市汇杰贸易有限公司 | Fast generator of high-temperature steam |
| CN208017367U (en) * | 2017-12-15 | 2018-10-30 | 宁夏鑫润源节能科技有限公司 | A kind of superheated steam cooker |
| CN208687693U (en) * | 2018-05-31 | 2019-04-02 | 浙江朗源环保科技有限公司 | High-efficiency electric-heating steam generator |
| CN109681855A (en) * | 2018-12-17 | 2019-04-26 | 佛山市顺德区美的洗涤电器制造有限公司 | Steam generator module and household electrical appliance |
| CN208925792U (en) * | 2018-06-15 | 2019-06-04 | 广东美的生活电器制造有限公司 | Food cooking machine |
| CN110736092A (en) * | 2019-10-09 | 2020-01-31 | 冯建兵 | instant steam generator for high-temperature steam sterilization equipment |
-
2020
- 2020-05-27 CN CN202010460042.9A patent/CN111536493A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001263667A (en) * | 2000-03-21 | 2001-09-26 | Matsushita Electric Ind Co Ltd | Superheated cooking apparatus |
| CN101660748A (en) * | 2009-09-11 | 2010-03-03 | 美的集团有限公司 | Steam generating device |
| CN102783907A (en) * | 2011-05-20 | 2012-11-21 | 松下电器产业株式会社 | Cooking appliance |
| CN103267274A (en) * | 2013-06-08 | 2013-08-28 | 广州市汇杰贸易有限公司 | Fast generator of high-temperature steam |
| CN208017367U (en) * | 2017-12-15 | 2018-10-30 | 宁夏鑫润源节能科技有限公司 | A kind of superheated steam cooker |
| CN208687693U (en) * | 2018-05-31 | 2019-04-02 | 浙江朗源环保科技有限公司 | High-efficiency electric-heating steam generator |
| CN208925792U (en) * | 2018-06-15 | 2019-06-04 | 广东美的生活电器制造有限公司 | Food cooking machine |
| CN109681855A (en) * | 2018-12-17 | 2019-04-26 | 佛山市顺德区美的洗涤电器制造有限公司 | Steam generator module and household electrical appliance |
| CN110736092A (en) * | 2019-10-09 | 2020-01-31 | 冯建兵 | instant steam generator for high-temperature steam sterilization equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045696A (en) * | 2021-10-15 | 2022-02-15 | 宁波亚洲浆纸业有限公司 | Cooking device and papermaking equipment |
| CN114045696B (en) * | 2021-10-15 | 2024-05-14 | 宁波亚洲浆纸业有限公司 | Cooking device and papermaking equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2033491A1 (en) | A heat transfer device | |
| CN111536493A (en) | Steam generator and cooking device | |
| WO2018162211A1 (en) | A flow-through type induction heater | |
| CN210871120U (en) | Steam generator and steam cooking device | |
| KR101084162B1 (en) | Heater Module Assembly | |
| KR101028198B1 (en) | Instantaneous water heater having carbon-heater | |
| CN201935153U (en) | Steam generator | |
| US8285128B2 (en) | Steam generator for a household appliance, heatable using a heat accumulator | |
| CN205037281U (en) | Steam generator and steam cleaner | |
| CN208920587U (en) | A kind of high-field electrode hot water boiler system | |
| CN213272576U (en) | Electric heating vaporization mechanism and high-temperature steam generating device | |
| CN215734903U (en) | Flexible heating device, steam generator and cooking equipment | |
| CN101457465B (en) | Improvement structure of gas pipeline of garment steamer | |
| CN113048457B (en) | Multi-section continuous heating device, heating method and household appliance applying same | |
| CN211011293U (en) | Single-water-pump double-furnace-liner combined steam generator | |
| CN208687693U (en) | High-efficiency electric-heating steam generator | |
| CN209131472U (en) | A kind of fin helix tube regenerative apparatus | |
| CN214258950U (en) | Steam generating device, cooking appliance and clothes treating device | |
| CN219756675U (en) | Cast aluminum heating element | |
| CN214258919U (en) | Energy-saving electric cooker | |
| CN217503988U (en) | Preheating system | |
| CN219283293U (en) | Internal circulation heat transfer device of electric drive boiler | |
| CN218074576U (en) | Steam generator and cooking utensil | |
| CN210842642U (en) | Steam box | |
| CN220212671U (en) | Hot water pipeline of coffee machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |