Electric heating steam cooker

Abstract

The utility model discloses an electric heating steam cooker which comprises a cooker body, an inner container, a steam generator and a pressure release valve. A steam cavity and a cooking cavity are formed in the inner container, and the steam cavity surrounds the cooking cavity; the steam generator is connected with the steam cavity of the inner container through a steam pipeline and a backflow pipeline. The steam cavity of the inner container is connected with the pressure relief valve through a pressure relief pipeline; the return pipeline is provided with a check valve, and the check valve prevents steam from entering the inner container from the return pipeline; high-temperature steam generated by the steam generator enters the steam cavity from the steam pipeline, and when the air pressure in the steam cavity is larger than the threshold value of the pressure release valve, the pressure release valve is opened for pressure release; and the condensate water flows back into the steam generating cavity of the steam generator from the return pipeline. According to the electric heating steam cooker, the inner container is of a double-layer structure, the steam cavity is filled with steam, food materials in the cooking cavity can be evenly and efficiently heated, the food materials are not sticky or burnt during cooking, the temperature in the cooking cavity can be always kept between 110 DEG C and 120 DEG C, and made food is better in taste.

Description

Technical Field

[0001] The utility model relates to the technical field of electric cage carts, and more specifically to an electric heating steam pot. Background Art

[0002] A steamer cart is a device used in catering to heat food, especially applied in the back kitchens of hotels, breakfast shops, etc.; the steamer cart mainly heats water through heating tubes, and after generating high-temperature steam, it steams the food in the steamer.

[0003] In a breakfast shop, there is also an inner pot provided in some steamer carts, and soy milk or porridge-like food is boiled in the inner pot. Since the heating tubes are installed at the bottom of the inner pot, the bottom of the inner pot is heated highly and quickly, but the side wall of the inner pot is heated slowly, resulting in uneven heating of the food in the inner pot, affecting the taste, and even prone to sticking to the bottom, which affects the taste and quality of the food; in order to prevent sticking to the bottom, it needs to be frequently stirred, which is very inconvenient to use.

[0004] In view of this, the applicant has improved the existing technology and proposed an electric heating steam pot that realizes uniform and efficient heating through steam. Content of the Utility Model

[0005] In view of this, the utility model provides an electric heating steam pot.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: an electric heating steam pot, comprising: a body, an inner pot, a steam generator, and a pressure relief valve;

[0007] An opening is formed at the top of the inner pot. The inner pot is double-layered, forming a steam chamber and a cooking chamber, and the steam chamber surrounds the cooking chamber;

[0008] The steam generator and the steam chamber of the inner pot are connected through a steam pipeline and a return pipeline;

[0009] The steam chamber of the inner pot and the pressure relief valve are connected through a pressure relief pipeline;

[0010] A check valve is provided on the return pipeline, and the check valve prevents steam from entering the inner pot through the return pipeline;

[0011] The high-temperature steam generated by the steam generator enters the steam chamber through the steam pipeline. When the air pressure in the steam chamber is greater than the threshold value of the pressure relief valve, the pressure relief valve is opened to relieve pressure; the condensed water flows back to the steam generation chamber of the steam generator through the return pipeline.

[0012] As a preferred solution of the utility model, the body is provided with an installation recess for assembling the pressure relief valve. A pressure relief pipe is provided in the installation recess, and the pressure relief pipeline is connected to the pressure relief pipe; the pressure relief valve is installed on the pressure relief pipe, and when the air pressure in the steam chamber is greater than the threshold value of the pressure relief valve, the pressure relief valve is lifted up.

[0013] As a preferred solution of the present utility model, the opening of the installation recess faces upward and is provided at the top of the fuselage, and an air outlet grid or a baffle is provided corresponding to the opening of the installation recess.

[0014] As a preferred solution of the present utility model, the steam generator includes: a main body and a cover body with a water level detection mechanism detachably installed on the main body;

[0015] The cover body is detachably installed on the main body, and the water level detection mechanism is disassembled and assembled along with the cover body;

[0016] The cover body is provided with a three-way valve. The first interface of the three-way valve is connected to an external water source, the second interface is connected to the steam generation chamber, and the third interface is connected to a water outlet faucet.

[0017] As a preferred solution of the present utility model, the fuselage is provided with a water outlet faucet for injecting water into the cooking cavity of the inner container.

[0018] As a preferred solution of the present utility model, the cover body is detachably assembled to the main body by means of screw fixation or threaded connection; a steam generation chamber is formed inside the main body, and the main body is provided with a heating tube for heating the water in the steam generation chamber; the water level detection mechanism is used to detect the water level height inside the main body.

[0019] As a preferred solution of the present utility model, the water level detection mechanism is a mechanical float water level detector.

[0020] As a preferred solution of the present utility model, a drain port is provided at the bottom of the steam generator, and the drain port is connected to a mechanical drain valve or an electronic drain valve.

[0021] As a preferred solution of the present utility model, a return port is provided at the lower position of the inner container, and the return port is connected to a return pipeline.

[0022] As a preferred solution of the present utility model, the fuselage is further provided with a control system and an operation panel.

[0023] Through the above technical solutions, compared with the prior art, the present utility model has the following beneficial technical effects:

[0024] 1. The inner container of the electric steam pot of the present utility model adopts a double-layer structure. The steam fills the steam chamber, and the cooking chamber realizes circular heating, achieving the function of efficient conversion and use of heat energy, uniformly and efficiently heating the food materials in the cooking chamber, realizing non-stick and non-burning of the food materials during cooking, and making the food produced have a better taste;

[0025] 2. In the present utility model, the inner container adopts a double-layer structure, and the steam cavity extends from the bottom of the cooking cavity to the side and reaches the mouth of the cooking cavity, covering the cooking cavity in a large range, enabling uniform heating and constant temperature inside the cooking cavity, preventing the food in the cooking cavity from sticking to the pot or burning, and ensuring stable heating performance.

[0026] 3. The electric steam pot of the present utility model is provided with a steam pipeline, a return pipeline, and a pressure relief pipeline. The steam pipeline is used to input high-temperature steam into the steam cavity, and the return pipeline recovers the condensed water generated in the steam cavity. Moreover, the condensed water in the steam cavity still has a certain temperature / heat. After flowing back to the steam generation cavity, it is heated into high-temperature steam again and recycled, which is more energy-efficient. The pressure relief pipeline can prevent the pressure in the steam cavity from being too high, control the pressure within a suitable range, and ensure safer use.

[0027] 4. The present utility model is provided with a pressure relief valve to keep the pressure in the steam cavity within a certain range. When the pressure is greater than the atmospheric pressure, the steam temperature can be greater than 100°C, enabling the temperature in the cooking cavity to be controlled between 110°C and 120°C, achieving high-temperature cooking. The inner container has fast heat conduction, uniform heating, and constant temperature, ensuring the best color, taste, and texture of the soup and porridge cooked.

[0028] 5. In the steam generator of the electric steam pot of the present utility model, the water level detection mechanism is disassembled and assembled following the cover body, facilitating the maintenance or replacement of the water level detection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of the electric steam pot of the present utility model;

[0031] Figure 2 It is a schematic diagram of the inner container in the electric steam pot of the present utility model;

[0032] Figure 3 It is a sectional schematic diagram of the inner container in the electric steam pot of the present utility model;

[0033] Figure 4 It is a schematic diagram of the steam generator in the electric steam pot of the present utility model;

[0034] Figure 5 It is a sectional structural schematic diagram of the electric steam pot of the present utility model.

[0035] Description of Reference Numerals

[0036] Body 100; mounting recess 110; pressure relief pipe 120; water outlet faucet 130; inner tank 200;

[0037] Steam chamber 210; cooking chamber 220; interface a; interface b; interface c; steam generator 300;

[0038] Body 310; water level detection mechanism 320; cover 330; three-way valve 340; first interface 341;

[0039] Second interface 342; third interface 343; drain port 350; pressure relief valve 400; steam pipeline 501; return pipeline 502; pressure relief pipeline 503. Detailed Embodiment

[0040] The present utility model will be further described in detail below with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0041] The steamer cart is mainly used for cooking food ingredients and is used in many restaurants and breakfast shops. The main function of the steamer cart is to place the steamer on the panel of the steamer cart, put the food ingredients to be heated and cooked in the steamer, and the water storage chamber in the steamer cart is heated to generate high-temperature steam. The high-temperature steam rises to heat and steam the food ingredients in the steamer;

[0042] Due to different types of food sold, the structure of the steamer cart is different. For one type of steamer cart, in addition to being equipped with the above-mentioned water storage chamber to heat the steamer, a second working station is also provided. The second working station is mainly provided with an inner pot, in which soy milk or porridge is cooked. The inner pot is heated by the heating pipe in the steamer cart, and then soy milk is cooked or porridge is cooked. However, in the prior art, the heating pipe of the steamer cart is usually arranged at the bottom of the inner pot. The bottom of the inner pot is heated and then the heat is transferred upward. The heat transfer speed is slow, and the heating effect is uneven, and it is easy to produce the situation of "bottom burning", which affects the taste of the food ingredients. In view of this, the present application proposes an electric steam pot that realizes uniform heating through steam.

[0043] The electric steam pot, please refer to Figures 1-5 as shown, includes: a body 100, an inner tank 200, a steam generator 300 and a pressure relief valve 400.

[0044] The inner tank 200, the steam generator 300 and the pressure relief valve 400 are all installed in the body 100. The whole machine has a high degree of integration, and rollers can be added to the bottom of the body 100 to facilitate the handling and movement of the whole machine.

[0045] As Figure 1As shown, in this embodiment, the body 100 is provided with a single station, and only one inner container 200 is installed in the body 100; in other embodiments, the body 100 can be provided with two stations of the same structure, and two inner containers 200 are installed in the body 100, and each inner container 200 is matched with a steam generator 300;

[0046] Alternatively, in other embodiments, the body 100 can be provided with two stations of different structures. One station is provided with the above-mentioned inner container 200, and the other station can be designed as a structure commonly used in traditional cage carts, which has a water storage cavity. The steamer is placed on the body panel facing the water storage cavity, and the water in the water storage cavity is heated to generate steam that rises to heat the ingredients in the steamer, with a more comprehensive function.

[0047] As Figure 5 shown, the inner container 200 is installed in the body 100, and the steam generator 300 is also installed in the body 100, and the steam generator 300 is located below the inner container 200, with a compact overall layout.

[0048] As Figures 2-3 shown, the inner container 200 is of a double-layer structure, forming a steam cavity 210 and a cooking cavity 220, and the steam cavity 210 surrounds the cooking cavity 220.

[0049] Continuing as Figures 2-3 shown, from the bottom to the side and then to the pot mouth, the steam cavity 210 almost completely covers the outside of the cooking cavity 220. The steam cavity 210 widely covers the outside of the cooking cavity 220, and the entire cooking cavity 220 is heated more evenly.

[0050] An opening is formed at the top of the inner container 200, and the ingredients are put into the inner container 200 through the opening; when the steam generator 300 operates, the high-temperature steam generated enters the steam cavity 210 to heat the inner container 200. Since the steam cavity 210 surrounds the cooking cavity 220, the steam evenly heats the cooking cavity 220, the ingredients are better heated, the heating speed is fast, the efficiency is high, and the taste of the cooked ingredients is better.

[0051] For example, when cooking porridge, put rice and water into the cooking cavity 220, and input high-temperature steam into the steam cavity 210. The outer wall of the cooking cavity 220 is heated comprehensively by the high-temperature steam, so that the rice and water are evenly heated, with high heating efficiency, and it can overcome the situation of "bottom burning" caused by local heating of the inner pot in the traditional steamer cart.

[0052] As Figure 5 shown, the steam generator 300 and the steam cavity 210 of the inner container 200 are connected through a steam pipeline 501 and a return pipeline 502;

[0053] The steam cavity 210 of the inner container 200 and the pressure relief valve 400 are connected through a pressure relief pipeline 503.

[0054] Specifically, the high-temperature steam generated during the operation of the steam generator 300 is input into the steam chamber 210 through the steam pipeline 501 to uniformly and efficiently heat the cooking chamber 220;

[0055] When the high-temperature steam continuously enters the steam chamber 210 and the air pressure in the steam chamber 210 is greater than the threshold value of the pressure relief valve 400, the high-temperature steam flushes open the pressure relief valve 400 for pressure relief;

[0056] The high-temperature steam forms condensed water in the steam chamber 210, and the condensed water flows back to the steam generation chamber of the steam generator 300 through the return pipeline 502.

[0057] Furthermore, a check valve can be provided in the steam pipeline 501. The function of the check valve is that the high-temperature steam can only be transported from the steam generator 300 to the steam chamber 210, and even when the air pressure in the steam chamber 210 is too high, the steam cannot flow back reversely from the steam chamber 210 to the steam generation chamber through the steam pipeline 501; furthermore, a check valve 500 can be provided in the return pipeline 502. The check valve 500 prevents the steam from entering the inner container 200 through the return pipeline 502, and only under a certain pressure, the condensed water flows from the return pipeline 502 into the steam generation chamber.

[0058] In one embodiment, the body 100 is provided with an installation recess 110 for assembling the pressure relief valve 400. A pressure relief pipe 120 is provided in the installation recess 110, and the pressure relief pipeline 503 is connected to the pressure relief pipe 120; the pressure relief valve 400 is installed on the pressure relief pipe 120 and is lifted when the air pressure in the steam chamber 210 is greater than the threshold value of the pressure relief valve 400.

[0059] Furthermore, the opening of the installation recess 110 faces upward and is provided at the top of the body 100. An air outlet grid or a baffle is provided corresponding to the opening of the installation recess 110.

[0060] During installation, the pressure relief valve 400 is directly inserted onto the pressure relief pipe 120, and the pressure relief pipe 120 is blocked by the gravity of the pressure relief valve 400. When the air pressure in the steam chamber 210 is greater than the threshold value, the air pressure lifts the pressure relief valve 400 upward, and the steam is discharged through the pressure relief pipe 120;

[0061] Of course, after a period of pressure relief, when the pressure in the steam chamber 210 is less than the threshold value, the pressure relief valve 400 moves downward again under the action of its own gravity to block the pressure relief pipe 120.

[0062] Optionally, the threshold value of the pressure relief valve 400 here can be 0.5 kg. When the air pressure in the steam chamber 210 is greater than 0.5 kg, the pressure relief valve 400 is flushed open;

[0063] It should be noted that: 0.5 kg of pressure ≈ 50 kPa.

[0064] Of course, the threshold value of the pressure relief valve 400 can be changed by changing the pressure relief valve 400 of different models or specifications. However, the threshold value of the pressure relief valve 400 is preferably set between 0.4 kg - 0.6 kg of pressure, which can ensure that there is a certain air pressure in the steam chamber 210, but the air pressure will not be too large.

[0065] Furthermore, during pressure relief, the steam is discharged outside through the air outlet grid.

[0066] Alternatively, if a baffle is provided, the baffle needs to be opened first before pressure relief; the baffle can be set as a flip type or a push - pull type. Opening the baffle is convenient for covering the installation recess 110 when the electric steam cooker is not in use, making the whole machine more tidy.

[0067] Since a pressure relief valve 400 is provided in the body 100, when there is pressure in the steam chamber 210, the higher the temperature of the steam;

[0068] For example, when the pressure in the steam chamber 210 is close to 0.5 kg, the temperature of the steam can reach between 110°C - 120°C, and finally the temperature in the cooking chamber 220 can reach between 110°C - 120°C, realizing high - temperature cooking.

[0069] Furthermore, a drain hole is also provided in the installation recess 110. The drain hole can be directly connected to the sewer, and the condensed water accumulated in the installation recess 110 is discharged from the drain hole to prevent water accumulation in the installation recess 110, making it cleaner and more hygienic to use; alternatively, the drain hole can be connected to a waste water tank, and the waste water tank can be cleaned regularly.

[0070] In one embodiment, as Figures 2-3 shown, the inner container 200 is provided with three interfaces. Among them, interface a is the steam inlet, which is connected to the steam pipeline 501; interface b is the steam outlet, which is connected to the pressure relief pipeline 503; interface c is the return port, which is connected to the return pipeline 502.

[0071] The positions of both interface a and interface b are higher than the position of interface c. Interface c should be set at the lowest position of the inner container 200 to facilitate all the returned water to flow back to the steam generation chamber through the return pipeline 502.

[0072] In one embodiment, the steam generator 300 includes: a main body 310 and a cover body 330 with a water level detection mechanism 320 detachably installed on the main body 310; a steam generation chamber is formed inside the main body 310, and the main body 310 is provided with a heating tube for heating the water in the steam generation chamber.

[0073] The cover 330 is detachably mounted on the body 310, and the water level detection mechanism 320 is disassembled and assembled following the cover 330.

[0074] The cover 330 is provided with a three-way valve 340. The first interface 341 of the three-way valve 340 is connected to an external water source, the second interface 342 is connected to the steam generation chamber, and the third interface 343 is connected to the water outlet faucet 130.

[0075] Specifically, as Figure 1 shown, the body 100 is provided with a water outlet faucet 130 for injecting water into the cooking cavity 220 of the inner container 200. The third interface 343 is connected to the water outlet faucet 130, and water can be directly injected into the cooking cavity 220, which is very convenient to use.

[0076] Further, the cover 330 is detachably assembled to the body 310 by means of screw fixation or threaded connection; the water level detection mechanism 320 is used to detect the water level height in the body 310.

[0077] Preferably, the cover 330 is detachably assembled to the body 310 by means of threaded connection. In this way, when the water level detection mechanism 320 is damaged, the water level detection mechanism 320 can be quickly removed from the body 310 for repair or replacement.

[0078] Further, the water level detection mechanism 320 is a mechanical float water level detector.

[0079] Optionally, the water level detection mechanism 320 can also be changed to an electronic water level detector.

[0080] Further, a drain port 350 is provided at the bottom of the steam generator 300. The drain port 350 is connected to a mechanical drain valve or an electronic drain valve. After use, the water in the steam generation chamber can be drained through the drain port 350 to avoid water accumulation and prevent scale formation.

[0081] In one embodiment, the body 100 is further provided with a control system and an operation panel to control the operation of the electric steam cooker through the operation panel, such as controlling its operating power, operating time, etc.; the operation panel can be a keypad, a touch panel and other common technologies.

[0082] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Electric steam pot, characterized in that: Including: A body (100), an inner container (200), a steam generator (300) and a pressure relief valve (400); An opening is formed at the top of the inner container (200). The inner container (200) is double-layered, forming a steam chamber (210) and a cooking chamber (220). The steam chamber (210) surrounds the cooking chamber (220); A steam pipeline (501) and a return pipeline (502) are connected between the steam generator (300) and the steam chamber (210) of the inner container (200); A pressure relief pipeline (503) is connected between the steam chamber (210) of the inner container (200) and the pressure relief valve (400); A check valve (500) is provided in the return pipeline (502). The check valve (500) prevents steam from entering the inner container (200) from the return pipeline (502); The high-temperature steam generated by the steam generator (300) enters the steam chamber (210) through the steam pipeline (501). When the air pressure in the steam chamber (210) is greater than the threshold value of the pressure relief valve (400), the pressure relief valve (400) is opened to relieve pressure; the condensed water flows back to the steam generation chamber of the steam generator (300) through the return pipeline (502).

2. The electric steam pot according to claim 1, characterized in that: The body (100) is provided with an installation recess (110) for assembling the pressure relief valve (400). A pressure relief pipe (120) is provided in the installation recess (110). The pressure relief pipeline (503) is connected to the pressure relief pipe (120); the pressure relief valve (400) is installed on the pressure relief pipe (120). When the air pressure in the steam chamber (210) is greater than the threshold value of the pressure relief valve (400), the pressure relief valve (400) is lifted up.

3. The electric steam pot according to claim 2, wherein: The opening of the installation recess (110) faces upward and is provided at the top of the body (100). An air outlet grid or a baffle is provided corresponding to the opening of the installation recess (110).

4. The electric steam pot according to claim 1, wherein: The steam generator (300) includes: a body (310) and a cover body (330) with a water level detection mechanism (320) detachably installed on the body (310); The cover body (330) is detachably installed on the body (310), and the water level detection mechanism (320) is disassembled and assembled following the cover body (330); The cover body (330) is provided with a three-way valve (340). The first interface (341) of the three-way valve (340) is connected to an external water source, the second interface (342) is connected to the steam generation chamber, and the third interface (343) is connected to a water outlet faucet (130).

5. The electric steam pot according to claim 1 or 4, characterized in that: The body (100) is provided with a water outlet faucet (130) for injecting water into the cooking chamber (220) of the inner container (200).

6. The electric steam pot according to claim 4, characterized in that: The cover body (330) is detachably assembled to the body (310) by means of screw fixation or threaded connection; a steam generation chamber is formed in the body (310), and a heating tube for heating the water in the steam generation chamber is provided in the body (310); the water level detection mechanism (320) is used to detect the water level height in the body (310).

7. The electric steam pot according to claim 6, wherein: The water level detection mechanism (320) is a mechanical float water level detector.

8. The electric steam pot according to claim 4, wherein: A drain port (350) is provided at the bottom of the steam generator (300), and the drain port (350) is connected to a mechanical drain valve or an electronic drain valve.

9. The electric steam pot according to claim 1, wherein: A return port is provided at the low position of the inner tank (200), and the return port is connected to a return pipeline (502).

10. The electric steam pot according to claim 1, wherein: The body (100) is further provided with a control system and an operation panel.

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