WO2009015530A1

WO2009015530A1 - An energy saving and water saving steam box

Info

Publication number: WO2009015530A1
Application number: PCT/CN2007/003634
Authority: WO
Inventors: Chia-Yi Hsu
Original assignee: Chia-Yi Hsu
Priority date: 2007-07-30
Filing date: 2007-12-17
Publication date: 2009-02-05
Also published as: CN101357037A; CN101357037B

Abstract

An energy saving and water saving steam box (10) at least includes a steam box body (11), a steam return device (16) and a steam emission base (13) on which are arranged a steam nozzle (14) and a venturi effect leading device (15). The steam enters the steam box body (11) through the steam nozzle (14) on the steam emission base (13), and because of the convection effect, the steam goes up from the bottom of the steam box body (11) and cooks foods. The steam discharged from the top of the steam box body (11) because of the convection effect enters said steam return device (16). The steam in the steam return device (16) is cooled and goes down, and is introduced into said steam emission base (13). In the venturi effect leading device (15), using the venturi effect created at the time of the steam emitted from the steam nozzle (14) passing acceleratedly the venturi, the return steam (12) is inducted into the bottom of the steam box body (11) and mixed into another convection circulation.

Description

Energy saving water saving steamer

The invention relates to a cooking steamer, in particular to an energy-saving technology and a device for a cooking steamer. The invention utilizes a steam recovery device and a venturi effect ejector to continuously recycle steam to eliminate steam convection due to steam convection. The problem of steam diffusion and energy waste is achieved, and energy conservation and water saving are achieved. Background technique

Steam cooking is the earliest use of Chinese people, dating back to the Yanhuang period four or five thousand years ago. Especially the bamboo steamer is very popular on the Chinese table. Modern medical research has shown that steam cooking is the best cooking method, best preserves food nutrition, and does not produce harmful substances. Although the bamboo steamer is very convenient and popular, when it is used, the steam is diffused, which not only seriously affects the working environment, but also wastes energy. Especially in dry areas and high altitudes, the water evaporates quickly, and the bamboo steamer consumes energy. It becomes uneconomical.

Steam is a very efficient cooking heat transfer medium. The reason is that the liquid water is heated and vaporized, and it needs to absorb a large amount of heat energy (vaporization heat). The steam contains huge vaporization heat (latent heat). When the steam comes into contact with food, the steam Condensed into liquid water, releasing latent heat and heating the food. The steam temperature is typically 100 degrees Celsius and the oven needs to be maintained at 150 to 250 degrees Celsius. Steam cooking also has disadvantages, especially bamboo steamers, because bamboo steamers always emit a lot of steam, and steam contains huge latent heat, so in addition to water consumption, the convective steam is actually a waste of energy.

Steamers are convection cooking utensils. Although the use of bamboo steamers causes steam to seriously affect the working environment and wastes energy, the bamboo steamer is steamed by the pores of the bamboo steamer, but it is necessary to keep the steam The downward convection keeps fresh steam flowing in and heats the food. In fact, some convection cooking steamers are also equipped with a fan to enhance convection, as shown in U.S. Patent 6,267,046. However, steam convection escapes, representing a large consumption of water and heat. In areas where water resources are scarce, barbecue cooking is more convenient and more popular.

In order to achieve the purpose of energy saving and water saving, the steam that the bamboo steamer escapes from the steamer cover must be eliminated, but the function of keeping the steam from the bottom to the top must be maintained, so that the fresh steam can continue to flow in, bring in heat, to the food. heating. Summary of the invention The main object of the present invention is to provide a steam recovery device, which eliminates the waste of energy and water caused by steam escape from the steamer, improves the problem of steam diffusion, and achieves the purpose of energy saving and water saving.

Another object of the present invention is to provide a venturi effect ejector that maintains convection of recovered steam, allows steam to be continuously recycled, and achieves energy and water vapor recycling.

In order to achieve the above object, the technical solution of the present invention is: an energy-saving water-saving steamer comprising at least one steamer body; further comprising a steam recovery device, a steam injection base, and the steam injection base is provided with at least one steam nozzle And venturi effect ejector;

The steam is injected into the steamer body through the steam nozzle of the steam injection base, and the convection force causes the steam to rise from the bottom of the steamer body to heat the food; the steam escaping from the top of the steamer body convects into the steam recovery device, and the steam recovery device and the steamer body The steam in the gap between the peripheral walls is cooled and sinked, through the inner wall through hole, the recovery steam and the greenhouse-oriented steam jet base. In the venturi effect ejector in the steam jet base, the steam injected by the steam nozzle accelerates through the Wen. The venturi effect produced by the tube causes the recovered steam to be directed into the bottom of the steamer body and merged into the convection cycle.

The energy-saving water-saving steamer, wherein a steam-jetting base is an annular container, comprising an outer wall, an inner wall and a bottom surface of the steam-jet base, and a gap between the outer wall and the inner wall; the upper end of the inner wall is fixed with a ring-shaped connecting platform, the inner side of the inner wall An annular side wall protrudes inwardly from the center of the central through hole, which is a seat of the steam nozzle, which is matched with the annular bottom of the steam nozzle, and the upper end of the steam nozzle is connected with a venturi effect by a thread or a clamping mechanism. The ejector device, the outer circular seat of the venturi effect ejector device is combined with the inner edge of the annular connecting platform, the upper end of the annular connecting platform has a flange adapted to the steamer body, and the lower portion is cylindrical, and the cylinder wall has a through hole, the wall of the cylinder is surrounded by the outer periphery of the platform of the steam nozzle, and the horizontal protruding surface of the inner end of the cylindrical inner through hole is pressed against the seat of the steam nozzle to position the steam nozzle; the steam nozzle and the annular shape The space enclosed by the connection platform and the ejector device is a recovery steam plus greenhouse, and the recovery steam plus greenhouse has a passage connection with the venturi effect ejector; the exhaust wall valve is arranged on the outer wall;

The steam injection base is fitted below the steam generator, and the seal is placed above the steam generator;

The lower end of the body of the steamer is closely connected with the upper mouth of the steam jet base, and the body of the steamer comprises at least a layer of a cage and a steamer cover, and the steamer cover has a hole;

A steam recovery device is matched with the main body of the steamer, and is concentrically arranged on the periphery of the steamer body. There is a gap between the steam recovery device and the peripheral wall of the steamer body for collecting steam; the steam recovery device comprises at least an annular side wall and an outer cover. The number of annular side walls is the same as the number of cages;

After the steamer body is concentrically assembled with the steam recovery device, it is placed at the upper end of the steam injection base, and is sealed and connected to the outer wall and the upper end of the annular connecting platform. In the energy-saving water-saving steamer, the annular connecting platform is made of plastic, and the lower part of the annular connecting platform is a symmetrically distributed cylindrical bracket, and the symmetrically distributed cylindrical bracket supports the annular connecting platform, and the cylindrical bracket surrounds In the form of a cylinder, a through hole is formed between the columnar brackets.

The energy-saving water-saving steamer, the passage between the recovered steam plus greenhouse and the venturi effect ejector, has at least one, divided into two sections, and the first section is a blind hole, which is connected with the recovery steam plus greenhouse. One end of the second section communicates with the first section, and the other end communicates with the waist of the venturi; the diameter of the second passage is smaller than the diameter of the passage of the first section; the venturi effect ejector includes at least one venturi, Wen's One end of the tube communicates with the steam nozzle, and the other end communicates with the body of the steamer.

In the energy-saving water-saving steamer, the steam recovery device and the steamer body are integrated into one device, and each of the cages and an annular side wall are fixedly connected by upper and lower fixing rings, and the upper and lower fixing rings are connected. The side section is frame-shaped, and a plurality of through holes are arranged on the top side wall and the bottom side wall for the passage of the recovered steam; each of the cages is provided with a movable steaming compartment.

The energy-saving water-saving steamer, the recovery steam adding greenhouse, is provided with a constant temperature electric heater, and the constant temperature is higher than the steam temperature, so that the recovered steam entering the venturi effect ejector is in a dry steam state.

The energy-saving water-saving steamer, the passage, the venturi waist airflow utilizing the diameter of the second passage is smaller than the diameter of the first passage, generating a venturi effect on the second passage, and collecting the steam into the greenhouse The recovered steam is directed into the bottom of the steamer body and merged into the convection cycle.

The energy-saving water-saving steamer, the exhaust device of the steam injection base, has a mechanism for adjusting the exhaust amount, and the internal air of the steamer is excluded in an initial stage, and when the steamer is filled with steam, the steam temperature of the exhaust port of the exhaust device When the rated value is reached, the steam discharge is automatically limited.

The energy-saving water-saving steamer, wherein the steamer body is made of bamboo or wood or stainless steel; the steam recovery device is made of stainless steel or plastic; and the steam nozzle is made of stainless steel or copper. It can be seen from the above technical solutions that the present invention has the following beneficial effects:

1. The steam recovery device eliminates the problem of energy and water waste caused by steam escape, achieves the purpose of energy saving and water saving, and improves the problem of steam in the working environment.

2. The venturi effect ejector and steam recovery mechanism of the steam jet base drive the recovered steam to convection without the aid of a fan, so that the steam can be recycled continuously, reducing energy and water waste.

3. Condensate recovery unit to keep the steam clean.

4. The traditional craft of bamboo steamer can be preserved, and the tradition and convenience of using bamboo steamer directly on the table.

5. The lock and airtight structure of the steam recovery device will produce a pressurized effect, and the steam pressure in the steamer will be slightly larger. At atmospheric pressure, it is beneficial to eliminate the influence of altitude when used on high mountains, so that steamers can be used at high altitudes. DRAWINGS

Figure 1 is an explanatory diagram of the working principle of a conventional bamboo steamer;

2 is an explanatory diagram of the principle of the energy-saving water-saving steamer of the present invention;

3 is a structural view of an embodiment of the energy-saving water-saving steamer of the present invention;

Figure 4 (a) is a structural view of the exhaust valve device;

Figure 4 (b) is a cross-sectional view taken along line E-E of Figure 4 (a);

Figure 5 is a structural view showing an embodiment in which the steam recovery device of the energy-saving water-saving steamer of the present invention is integrated with the body of the steamer;

Figure 6 is an explanatory view showing an embodiment of the steam-saving base of the energy-saving water-saving steamer of the present invention;

Figure 7 (a) is an explanatory view of the venturi effect ejector of the steam-saving steam-steaming base of the present invention; Figure 7 (b) is a cross-sectional view taken along line C-C of Figure 7 (a);

Figure 7 (c) is a bottom view of the steam nozzle 14 and the passage ί8;

Fig. 8 is an explanatory diagram of a cooking procedure of an embodiment of the energy-saving water-saving steamer of the present invention. detailed description

First, the working situation of the traditional bamboo steamer is illustrated. Figure 1 is an explanatory diagram of the working principle of the traditional bamboo steamer. The bamboo steamer 1 is a convection cooking utensil. The steam 2 enters the steamer through the bottom 3 of the bamboo steamer, and the convection force causes the steam to float from the bottom of the steamer. l, heating the food 4, the steam escapes from the pores 6 of the bamboo steamer cover 5, keeping the fresh steam from the bottom up convection, and the fresh steam generated by the steam generator 7 continuously flows into the interior of the steamer, the steam pressure inside the steamer is slightly larger than External atmospheric pressure.

2 is an explanatory diagram of the principle of the energy-saving water-saving steamer of the present invention. The energy-saving water-saving steamer 10 includes a steamer body 11 , a steam injection base 13 , a steam recovery device 16 , and steam 2 generated by the steam generator 7 into the steam injection base. 13. The steam injection base 13 is provided with at least one set of steam nozzles 14 and a venturi effect ejector 15, and the steam 2 is injected into the steamer body 11 via the steam nozzles 14 of the steam injection base 13, and the convection force causes the steam 2 to be used by the steamer body The bottom 3 rises and heats the food 4; the recovered steam 12 escaping from the top of the steamer body 11 enters the steam recovery device 16, and the steam recovery device 16 cools and sinks the recovered steam 12 to the steam injection base 13 at the steam injection base. In the venturi effect ejector device 13 of 13, the venturi generated when the steam is accelerated by the passage The effect is that the recovered steam 12 is introduced into the bottom of the steamer body 11 and merged into a convection cycle.

3 is a structural diagram of Embodiment 1 of the energy-saving water-saving steamer of the present invention, the energy-saving water-saving steamer 10, comprising: a steamer body 11, a steam recovery device 16, a steam injection base 13;

Among them, a steam jet base 13 is an annular container including an outer wall 13a of the steam jet base 13, an inner wall 13b, and a chamber between the outer wall 13a and the inner wall 13b, which is a condensed water recovery device. The upper end of the inner wall 13b receives an annular connecting base 130, and a central side wall of the inner wall 13b protrudes inwardly and upwardly from an annular side wall, which is a seat of the steam nozzle 14, and is matched with the annular bottom of the steam nozzle 14. The upper end of the steam nozzle 14 has a combined mechanism, such as a thread or a cassette (not shown) connected to the venturi effect ejector device 15, and the outer circumference of the venturi effect ejector 15 is coupled to the annular connecting table. 130 inner port edge, the round bad connection table 130 is made of plastic, pressed on the table of the steam nozzle 14, and the steam nozzle 14 is positioned, and the upper end of the ring-shaped connecting table 130 has a flange and the steamer body 11 is fitted. The lower portion of the annular connecting base 130 is a symmetrically distributed cylindrical bracket 131 (shown in FIG. 6). The symmetrically distributed cylindrical bracket 131 supports the annular connecting base 130, and a through hole is formed between the cylindrical brackets 131. The space enclosed by the columnar support 131, the steam nozzle 14, the connection stage 130, and the ejector unit 15 is a recovery steam plus greenhouse, and the recovery steam plus greenhouse 17 is connected to the venturi effect ejector 15 via a passage 18. The venturi effect ejector 15 includes at least one venturi, and the venturi has a passageway connected to the recovery steam plus greenhouse 17. An exhaust valve device 30 is provided on the outer wall 13a.

The steam nozzle 14, the connection station 130 and the ejector device 15 are all easily disassembled and combined movable devices for easy cleaning.

The steam injection base 13 is fitted below the steam generator 7 (not shown) and the seal is placed above the steam generator 7.

The lower end of a steamer body u is closely connected with the upper mouth of the steam jet base 13, the steamer body 11 comprises at least one layer of cages and a steamer cover 5, the steamer cover 5 has a hole 6, and the cage and the steamer cover 5 can be a traditional bamboo and wood structure. .

A steam recovery unit 16 is adapted to the steamer body 11 and is disposed concentrically on the periphery of the steamer body 11 with a gap between the vapor recovery unit 16 and the peripheral wall of the steamer body 11 for the passage of recovered steam. The vapor recovery unit 16 includes at least an annular side wall 16a and an outer cover 16b, the number of the annular side walls 16a being the same as the number of the cages. The steam recovery unit 16 is made of stainless steel or plastic.

The steamer body 11 is concentrically fitted with the steam recovery unit 16, and is placed at the upper port of the steam jet base 13, and is sealed to the upper end of the outer wall 13a and the annular connecting base 130.

Outside the steam nozzle 14, the recovered steam in the greenhouse 17 below the venturi effect ejector 15 is provided with a constant temperature electric heater (not shown), and the constant temperature is higher than the vapor temperature, so that the venturi effect is induced. Device 15 The recovered steam is in a dry steam state.

The steam injection base 13 is provided with a set of steam nozzles 14 and a venturi effect ejector device 15. The steam 2 is injected into the steamer body 11 via the steam nozzles 14 of the steam injection base 13, and the convection force causes the steam 2 to rise from the bottom of the steamer body. The food 4 is heated; the recovered steam 12 escaping from the top of the steamer body 11 enters the steam recovery device 16, and the steam recovery device 16 cools and sinks the recovered steam 12 to the steam injection base 13, and the through hole formed by the columnar support 131 is supported. The recovery steam adding greenhouse 17 and the passage 18 enter the venturi effect ejector device 15 and utilize the venturi effect generated when the steam nozzle 2 sprays the steam 2, so that the recovered steam 12 is introduced into the bottom of the steamer body 11 to be convected. cycle.

The steam recovery device 16 of the embodiment 1 of Fig. 3 is made of stainless steel or plastic, and the vapor 12 in the vapor recovery unit 16 has a temperature buffering effect to heat the food inside the steamer body 11 and to maintain the heat retention effect.

Fig. 4(a) is a structural view of the exhaust valve device, which is a cross-sectional view of the exhaust valve device; Fig. 4(b) is a cross-sectional view taken along line E-E of Fig. 4(a), showing the shape of the bimetal 40. The exhaust valve device 30, in the initial stage, excludes the internal air of the steamer body 11 and the inside of the steamer body 11 is filled with steam, and the exhaust gas is reduced in steam discharge amount.

The exhaust valve device 30 is a steamer automatic throttle exhaust valve device, which is actuated by steam temperature, and mainly comprises a base 31, a chamber 32 for accommodating bimetal, and a base 31 for the nut 33 and The rubber washer 34 is fixed on the outer wall 13a, the inner side of the exhaust port 44 of the base 31 is provided with a '0'-shaped seal ring: 37, the cover 38 and the base 31 enclose a chamber 32 for accommodating the bimetal, and the cover 38 There is an air inlet hole 39. The chamber 32 for accommodating the bimetal has a bimetal 40 inside. The exhaust port 44 of the base 31 has an exhaust port adjusting device 42 for adjusting the displacement. The bimetal 40 is normally shaped. In order to move away from the '0'-shaped seal ring 37, the structural shape of the bimetal 40 is as shown in Fig. 4(b), the center of the bimetal 40 has a throttle exhaust port 41, and the diameter of the throttle exhaust port 41 is smaller than that of the row. The diameter of the port 44, the vapor enters the chamber 32 through the air inlet 39 in the cover 38, passes through the notch 43 at the edge of the bimetal 40, and leads to the air outlet 44. When the temperature of the vapor in the chamber 32 housing the bimetal reaches the design When the value is, for example, 93 degrees Celsius, the shape of the bimetal 40 is reversed, and the protrusion is pressed to the left at '0. On the shape seal 37, the exhaust port 44 is closed, and the throttle vent 41 at the center of the bimetal 40 starts to perform throttling exhaust. The cover 38, the bimetal 40, and the vent adjustment device 42 can be removed for cleaning to facilitate the cleaning of the steamer.

The rated closing temperature of the exhaust valve unit can be designed at 93 degrees Celsius, the rated recovery temperature can be designed at 65 degrees Celsius, the rated temperature difference is 28 degrees Celsius, and the recovery can also be designed as a manual reset type. In order to adapt to the change of boiling point of water in different altitudes, the bimetal device can be replaced. For example, in the plateau area, the bimetal piece with the rated closing temperature slightly lower than the boiling temperature of the local water is selected, and the throttling exhaust port 41 is further reduced to increase the steamer. Internal and external pressure difference, adaptation The need for high altitude areas.

5 is a structural view of Embodiment 2 of the steam recovery device of the energy-saving water-saving steamer of the present invention integrated with the steamer body, and the structure of Embodiment 2 is substantially the same as that of Embodiment 1, except that: the steamer body 11 and the steam recovery device 16 are both The utility model is made of stainless steel, and each of the cages and the annular side wall 16a is fixedly connected by the upper and lower fixing rings 16c and 16d, and the upper and lower fixing rings 16c and 16d are frame-shaped and have a top wall and a bottom. A plurality of through holes are provided in the side walls for the passage of the recovered steam 12. There is a movable steam lla in each cage. Steamer body 11 The steam recovery unit in the steam recovery unit 16 has a temperature buffering effect, which is beneficial to the temperature and energy saving of the food heating space inside the steamer body 11.

Figure 6 is a cross-sectional view of the D_D of Figure 5, which is an explanatory view of an embodiment of the steam-saving base of the energy-saving water-saving steamer of the present invention, the steam injection base 13 is provided with a set of steam nozzles 14 and a venturi effect ejector 15, steam nozzle 14 is made of stainless steel or copper, and the steam 2 heat energy is transmitted through the stainless steel or copper steam nozzle 14 to heat the recovered steam 12 and the recovered steam 12 of the greenhouse 17 . The steam entering the steam nozzle 14 passes through the venturi effect generated by the venturi effect ejector 15 so that the recovered steam 12 which has been warmed is introduced into the bottom of the steamer body 11 via the passage 18. For larger steam injection bases, an array of steam nozzles 14 and a venturi effect ejector 15 can be provided.

When the energy-saving water-saving steamer of the present invention is heated by electric power, the outside of the steam nozzle 14 and the recovered steam plus the greenhouse 17 under the venturi effect ejector device 15 can be additionally provided with a constant temperature electric heater (not shown), and the temperature is slightly lower. Above the vapor temperature, the recovery steam entering the venturi effect ejector 15 is placed in a dry steam state in consideration of the tolerance, for example, 108 degrees Celsius.

7 is an explanatory view of a venturi effect ejector of the steam-saving steam injection base of the present invention, wherein the venturi effect ejector is made of aluminum alloy or plastic, wherein FIG. 7(a) is a sectional view, showing The structure of the passage 18, the passage 19 and the venturi 20; Fig. 7(b) is a cross-sectional view taken along line C-C of Fig. 7(a); and Fig. 7(c) is a bottom view of the steam nozzle 14 and the passage 18. The steam squirting base 13 is provided with a steam nozzle 14 and a venturi effect ejector 15 which is a heat conductive metal material of stainless steel or copper, steam 2 injected by the steam nozzle 14, and heat transfer to the recovery steam plus greenhouse 17 Heating the recovered steam 12, the recovery steam adding greenhouse 17 and the venturi effect ejector 15 are connected by a passage 18, and the venturi 20 contracted venturi waist 21 is connected with the passage 18 via a passage 19, the passage The diameter of 19 is smaller than the diameter of the passage 18; the steam 2 injected by the steam nozzle 14 is contracted by the cross-sectional area at the waist portion 21 of the venturi, the flow rate is increased, and the venturi effect is generated on the passage 19, and the steam is added to the greenhouse. The steam 12 is introduced into the bottom of the steamer body 11 through the passage 18 and the passage 19, and is introduced into the convection cycle.

When the energy-saving water-saving steamer of the present invention is actually used, the steam temperature in the initial stage rises steadily because of food and steamer. The internal temperature is still low and the steam demand is large. As the steam influxes, the steam will gradually fill the inside of the steamer body 11. The steam entering the steamer body 11 escapes from the top of the steamer body 11 and enters the steam recovery device 16. The steam recovery device 16 cools and sinks the recovered steam 12, and when the steam is discharged from the exhaust valve device 30, it indicates the inside of the steamer body 11 and the steam. The recovery unit 16 is already filled with steam. When the temperature of the steam discharged from the exhaust valve unit 30 reaches the rated closing temperature of the exhaust valve unit 30, for example, 93 degrees Celsius, the exhaust valve unit 30 closes the exhaust port 44, at the center of the bimetal 40. The throttle vent 41 starts to perform throttling and exhaust, and reduces the amount of exhaust gas. At this time, the steam supply amount is reduced, the steam injection amount of the steam nozzle 14 is continuously supplied, and the recovery steam 12 is kept from entering the steamer body. At the bottom of the 11th, the work of reducing the steam supply can be done manually by adjusting the heating power. When using electric heating, it can also be done automatically using automated control technology. The amount of steam entering the interior of the steamer and the amount of steam exiting the exhaust will eventually converge.

8 is a cooking program explanatory diagram of an embodiment of the energy-saving water-saving steamer of the present invention. In the initial stage, since the internal temperature of the food and the steamer is still low, the amount of steam 2 is large, and the heating power is large. As the steam 2 is poured in, the steam 2 will Gradually filling the inside of the steamer body 11, the temperature of the steam 2 rises steadily, and when the steam is discharged by the exhaust device 30, it means that the inside of the steamer body 11 and the steam recovery device 16 are already filled with steam, and when the temperature of the steam discharged from the exhaust valve device 30 reaches the row When the gas valve device 30 is rated off, for example, 93 degrees Celsius, the exhaust valve device 30 closes the exhaust port 44, the throttle exhaust hole 41 at the center of the bimetal, starts to perform throttling exhaust, and reduces the amount of exhaust, such as The time t1 in Fig. 8; after the exhaust port is reduced, the internal vapor pressure rise rate will increase, and the steam temperature rise rate will also increase, as shown by time t1-t2 in Fig. 8, at this time, the steam supply amount can be reduced; t2 After the time steam supply is reduced, the steam pressure rise rate is slowed down, and the steam temperature rise rate is also slowed down, as shown by time t2-t3 in Figure 8; The amount of steam entering the inside of the steamer and the amount of steam discharged from the exhaust valve unit 30 are gradually stabilized, and the steam pressure and temperature inside the steamer are also stabilized; for example, when the steam temperature is 101 degrees Celsius, the steam pressure is about 1.037 atmospheric pressure, The 8 time ratio is for convenience of explanation and shows the general situation.

After the steam pressure and temperature inside the steamer tend to stabilize, because the recovered steam 12 is re-added to the convection, the steamer enters the stage of heating mainly by the recovery steam 12, and the newly injected steam 2 is to maintain the steam cycle power, at which time the steam will still be discharged. The throttle vent 41 of the gas valve device 30 continues to be discharged, but compared with the amount of steam discharged from the conventional steamer, the energy-saving water-saving steamer of the present invention greatly reduces the amount of steam discharged, effectively reduces energy and water waste, and achieves energy saving. The purpose of water saving.

It should be specially pointed out that the materials of the steamer body, the steam recovery device, the steam nozzle, and the venturi effect ejector are comprehensive in terms of functionality, durability, processability and aesthetics, and are optimal. Choose, not a limit.

Claims

Rights request

An energy-saving water-saving steamer comprising at least one steamer body; characterized in that it further comprises a steam recovery device, a steam injection base, and the steam injection base is provided with at least one steam nozzle and a venturi effect ejector; The steam is injected into the steamer body through the steam nozzle of the steam injection base, and the convection force causes the steam to rise from the bottom of the steamer body to heat the food; the steam escaping from the top of the steamer body convects into the steam recovery device, and the steam recovery device and the steamer body The steam in the gap between the peripheral walls is cooled and sinked, and the through hole formed by the support of the columnar support is directed to the steam recovery base of the steam jet base, and is injected into the venturi effect ejector in the steam jet base by the steam nozzle. The steam accelerates the venturi effect generated by the venturi, causing the recovered steam to be directed into the bottom of the steamer body and recirculated into the convection cycle.

2. The energy-saving water-saving steamer according to claim 1, wherein:

The steam jet base is an annular container, comprising an outer wall and an inner wall of the steam jet base, and a chamber between the outer wall and the inner wall, which is a condensed water recovery device; the upper end of the inner wall receives a ring-shaped connecting platform, and the center of the inner wall is surrounded by a central passage An annular side wall protrudes inwardly from the middle of the hole, which is a seat of the steam nozzle, which is matched with the annular bottom circumference of the steam nozzle, and a combination mechanism of the upper end of the steam nozzle is connected with the venturi effect ejector, and the venturi effect is induced. The outer circular seat of the device is combined with the inner edge of the annular connecting platform; the upper end of the annular connecting platform has a flange adapted to the steamer body, the lower part is a cylindrical shape, and the cylinder has a through hole on the wall, and the cylinder wall is surrounded by the steam The outer periphery of the nozzle of the nozzle has a horizontal protruding surface at the upper end of the cylindrical inner through hole pressed against the seat of the steam nozzle to position the steam nozzle; surrounded by a steam nozzle, a ring-shaped connecting platform and an ejector device The space is a recovery steam plus greenhouse, and the recovery steam plus greenhouse has a passage connection with the venturi effect ejector; the outer wall is provided with an exhaust wide door device;

After the steamer body is concentrically assembled with the steam recovery device, it is placed at the upper end of the steam injection base and sealed to the upper end of the outer wall and the annular connecting table.

3. The energy-saving water-saving steamer according to claim 2, wherein the annular connecting platform is made of plastic, and the lower portion of the annular connecting platform is a symmetrically distributed cylindrical bracket, and the symmetrically distributed cylindrical bracket supports Ring The connecting table has a cylindrical bracket formed in a cylindrical shape, and a through hole is formed between the cylindrical brackets.

4. The energy-saving water-saving steamer according to claim 2, wherein the passage between the recovered steam plus greenhouse and the venturi effect ejector is at least one, divided into two segments, and the first segment is blind a hole communicating with the recovery steam plus the greenhouse, the second end is in communication with the first section, and the other end is in communication with the waist of the venturi; the diameter of the second passage is smaller than the diameter of the first passage; the Venturi effect ejector, Including at least one venturi, one end of the venturi is in communication with the steam nozzle and the other end is in communication with the body of the steamer.

The energy-saving water-saving steamer according to claim 2, wherein the steam recovery device and the steamer body are integrated into each other, and each of the cages and an annular side wall pass through the upper and lower fixing rings. The solid connection, the upper and lower fixing ring side sections are frame-shaped, and the top side wall and the bottom side wall are provided with a plurality of through holes for the passage of the recovered steam; each of the cages is provided with a movable steaming compartment.

6. The energy-saving water-saving steamer according to claim 2, wherein the recovered steam plus greenhouse is provided with a constant temperature electric heater, and the constant temperature is higher than the vapor temperature, so that the recovered steam entering the venturi effect ejector , in a dry steam state.

7. The energy-saving water-saving steamer according to claim 4, wherein the passage, which meets the waist of the venturi, and the venturi effect generated when the steam injected by the steam nozzle passes through the waist of the venturi The recovered steam and the recovered steam in the greenhouse are injected into the bottom of the steamer body and merged into the convection cycle.

The energy-saving water-saving steamer according to claim 2, wherein the exhausting device of the steam injection base has a mechanism for adjusting the amount of exhaust gas, and the internal air of the steamer is excluded in an initial stage, and when the steamer is filled with steam When the exhaust steam temperature of the exhaust unit reaches the rated value, the steam discharge amount is automatically limited.

The energy-saving water-saving steamer according to claim 2 or 5, wherein the steamer body is made of bamboo or stainless steel.

The energy-saving water-saving steamer according to claim 2, wherein the steam recovery device is made of stainless steel or plastic.

The energy-saving water-saving steamer according to claim 2, wherein the steam nozzle is made of stainless steel or copper.

The energy-saving water-saving steamer according to claim 2, wherein the venturi effect ejector is made of aluminum alloy or plastic.

13. The energy-saving water-saving steamer according to claim 2, wherein the combination mechanism is a thread or a cassette.