Dry-burn prevention rice steaming cabinet

Abstract

This utility model discloses an anti-dry-burning rice steamer, including a steaming chamber with a first water tank at the bottom; a heating mechanism at the bottom of the steaming chamber to heat the water in the first water tank; a first water level measuring device outside the steaming chamber to measure the water level depth in the first water tank; and a water storage mechanism at the top of the steaming chamber to store reserve water. The water storage mechanism includes a second water tank with an exhaust pipe connected to the steaming chamber. The exhaust pipe passes through the second water tank and extends upwards. The second water tank is also connected to a first water supply pipe, which is connected to a water pump. The outlet of the water pump is connected to the first water tank, and the water pump is electrically connected to the first water level measuring device. With this structure, when the rice steamer is about to dry-burn, the water storage mechanism can promptly replenish the first water tank with high-temperature reserve water, thereby ensuring that the rice steamer can quickly resume the previous steaming operation after replenishment, ensuring the continuity of the food steaming process.

Description

Technical Field

[0001] This utility model relates to a rice steamer, and more particularly to a rice steamer that prevents dry burning. Background Technology

[0002] A rice steamer, also known as a rice cooker, rice steamer box, or rice steamer cart, is a large kitchen baking device that uses electricity or gas to heat and cook rice. The interior uses a stainless steel steaming tray (stainless steel square tray) as the container. For easy movement, casters are installed at the bottom of the device, giving it a cart-like appearance. The body is cabinet-shaped and made of stainless steel, usually 304 stainless steel. Rice steamers are commonly used in large canteens in hotels, military units, schools, and factories. Besides steaming rice, steamed buns, and dumplings, rice steamers can also steam pork, chicken, duck, and other meats. There are also special seafood steamers for this purpose, and they can also be used to stew soups.

[0003] Existing rice steamers typically have some anti-dry-burning function. For example, if the water in the bottom steam pan evaporates, the heating element will automatically stop heating once it reaches a threshold temperature, preventing dangerous situations caused by continuous heating. However, it's important to know that while this heating interruption ensures production safety, it also interrupts the cooking process, affecting the processing of rice and other ingredients inside the steamer.

[0004] Therefore, a rice steamer with anti-dry-burning function is designed to take remedial measures before dry-burning occurs and ensure that the rice steamer can quickly resume steaming operation after water is added, so as to maintain good continuity of the rice steamer's steaming operation. Utility Model Content

[0005] The purpose of this utility model is to provide a rice steamer with anti-dry-burning function to solve the problem that the existing rice steamer's anti-dry-burning function is simple and crude, and the steaming operation will be interrupted if the anti-dry-burning intervention occurs during the cooking process.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rice steamer with anti-dry-burning function, including

[0008] A steam oven, having a first water tank located at the bottom;

[0009] A heating mechanism is located at the bottom of the steamer to heat the water in the first water tank;

[0010] The first water level measuring device is installed outside the steam oven and connected to the first water tank to measure the water level depth in the first water tank;

[0011] A water storage mechanism is installed on the top of the steamer and stores spare water. The water storage mechanism includes a second water tank, in which an exhaust pipe connected to the steamer is installed. The exhaust pipe passes through the second water tank and extends upwards into the water tank. The second water tank is also connected to a first water supply pipe, and a water pump is connected to the first water supply pipe. The outlet of the water pump is connected to the first water tank, and the water pump is electrically connected to the first water level measuring device.

[0012] Preferably, the bottom of the second water tank is also connected to a second water supply pipe, which is connected to an external water source. A solenoid valve is installed on the second water supply pipe, and a second water level measuring device is installed at the bottom of the water tank. The second water level measuring device is electrically connected to the solenoid valve.

[0013] Preferably, the portion of the exhaust pipe located in the second water tank is a spiral coil.

[0014] Preferably, the exhaust pipe has at least two sets.

[0015] Preferably, the second water tank has a partition that divides the second water tank into several independent water storage compartments. Each compartment has an exhaust pipe. The partition has a drop design so that the water storage compartments are distributed in a stepped manner. The second water level measuring device and the first water supply pipe are connected to the compartment with the lowest water level, and the second water supply pipe is connected to the compartment with the highest water level.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This design incorporates a water storage mechanism at the top of the steamer. This mechanism utilizes the steam emitted during operation to preheat the water, ensuring the reserve water in the storage tank remains at a high temperature. When the first water level sensor detects that the water level in the first water tank is below a threshold, it activates the water pump, which promptly replenishes the first water tank with hot reserve water to prevent the heating mechanism from burning dry. Furthermore, this design ensures that the water added to the first water tank is hot, allowing it to be boiled again more quickly by the heating mechanism. This rapid resumption of steaming operations prevents food processing failures caused by prolonged interruptions in the steaming process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a rear view of the present invention;

[0020] Figure 3 This is a longitudinal sectional view of the present invention;

[0021] Figure 4 This is a cross-sectional view of the present invention.

[0022] Reference numerals: 1. Steamer; 11. First water tank; 2. Heating mechanism; 3. First water level measuring device; 4. Water storage mechanism; 41. Second water tank; 42. Exhaust pipe; 43. First water supply pipe; 44. Water pump; 45. Second water supply pipe; 46. Solenoid valve; 47. Second water level measuring device; 48. Baffle. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figures 1-4The illustrated anti-dry-burning rice steamer includes a steaming chamber 1. The bottom of the steaming chamber 1 has a first water tank for storing water needed for steaming. A heating mechanism 2 is also installed at the bottom of the steaming chamber 1. This heating mechanism 2 can be high-temperature steam heating, resistance heating, flame heating, etc. During steaming, the heating mechanism 2 is activated to heat the water in the first water tank 11, thereby generating the steam required for steaming. Furthermore, a first water level measuring device 3 is installed on the outside of the steaming chamber 1. This first water level measuring device can be a water level measuring device with a connecting pipe structure or an electronic water level measuring device, to measure the water level in the first water tank 11 in real time.

[0027] like Figures 1-4 As shown, to ensure the water added during the anti-dry-burning intervention of the rice steamer is close to the evaporation temperature, thus guaranteeing the rapid resumption of steaming operations and ensuring the continuity of food cooking, a water storage mechanism 4 is installed on the top of the steamer 1. Specifically, this water storage mechanism includes a second water tank 41 for storing reserve water, and an exhaust pipe 42 is arranged in the second water tank. It should be noted that in this design, one end of the exhaust pipe is connected to the top of the steamer and communicates with it to guide the high-temperature steam discharged from the steamer; the other end passes through the second water tank 41 and exits upwards. This high-temperature steam exhaust pipe continuously heats the water in the second water tank during the operation of the rice steamer, maintaining a consistently high water temperature. It should be noted that the steam passing through the exhaust pipe in this design is the steam discharged from the rice steamer after depressurization, which is considered waste gas reuse. It should also be noted that, in this design, a pressure relief port is provided at the top of the second water tank to prevent the pressure inside the second water tank from increasing due to high-temperature evaporation.

[0028] Additionally, it's important to know that to ensure the high-temperature water in the second water tank 41 can be quickly replenished to the first water tank 11 in the event of a dry-burning situation in the rice steamer, a first water supply pipe 43 is connected to the bottom of the second water tank. A water pump 44 is connected to this first water supply pipe 43, and the outlet of the water pump 44 is connected to the first water tank 11 via a pipe. It's also important to note that the water pump 44 in this design is electrically connected to the first water level sensor 3. When the first water level sensor 3 is triggered, the water pump 44 is promptly activated to pump the high-temperature water from the second water tank 41 to the first water tank 11, thus achieving rapid replenishment of the cooking water.

[0029] It's important to understand that automatically replenishing the backup water in the second water tank 41 would further enhance the ease of use of this solution. Specifically, a second water supply pipe 45 can be connected to the bottom of the second water tank 41, and this second water supply pipe 45 is connected to an external water source (tap water pipe). Simultaneously, a solenoid valve 46 is installed on this second water supply pipe 45, and this solenoid valve is electrically connected to a second water level sensor 47 installed in the second water tank 41. When the second water level sensor 47 detects that the water level in the second water tank 41 is below a threshold, it can drive the solenoid valve 46, which is electrically connected to it, to open and promptly replenish water to the second water tank 41.

[0030] It should also be noted that, in this scheme, in order to increase the contact area between the exhaust pipe 42 and the water stored in the second water tank 41, the part of the exhaust pipe 42 located in the second water tank 41 is a spiral coil structure.

[0031] It should also be noted that in this scheme, there are at least two sets of exhaust pipes 42, so as to improve the heating efficiency of the water stored in the second water tank 41 after the steamer 1 is working.

[0032] It should also be noted that if all the water in the second water tank 41 is heated as a whole, the large amount of water stored will inevitably lead to low heating efficiency. To improve this problem and ensure that the water added to the rice steamer is at a certain temperature even after a short period of operation, differential heating can be used. This ensures that some water is heated faster, so that even when the rice steamer has been operating for a short time, some hot reserve water can be added to the first water tank to prevent dry burning and ensure that the steaming and cooking processes can be quickly resumed after water is added. Specifically, a partition 48 is also provided in the second water tank 41, which divides the space in the second water tank 41 into several independently sized water storage compartments. It should be noted that each compartment has an exhaust pipe to achieve independent heating of the water in the compartment. It should also be noted that in this design, the multiple partitions 48 are designed with different heights so that the water capacity of the compartments varies. Specifically, the height of the partition decreases in a stepped manner, so that the water-holding space of the separated compartments also decreases in a stepped manner. Therefore, the exhaust pipe with the same heating capacity heats the water in the compartment with less water storage faster than in other compartments. This ensures that even if the rice cooker operates for a short time, the water storage mechanism 4 can still provide a high-temperature backup water supply. It should be noted that, to ensure that the rapidly heating high-temperature water is replenished to the first water tank 11 first when a dry-burning warning occurs, the first water supply pipe is connected to the compartment with the lowest water level. It should also be noted that after water is replenished to the first water tank in the compartment, the water level in that compartment obviously needs to be replenished accordingly. Therefore, a second water level measuring device 47 is installed in the compartment with the lowest water level. When the second water level measuring device detects that the water level in its compartment is below a threshold, it can drive the solenoid valve to open, thereby achieving rapid water replenishment. It should also be noted that, to prevent cold water from directly entering the compartment with the lowest water level, the second water supply pipe in this design is connected to the compartment with the highest water level. Preferably, the second water supply pipe 45 can be connected to the bottom of the chamber, so that the water overflowing from the chamber is the water with a higher temperature from the upper part. It should be noted that as water overflows from the chamber with the highest water level to the chamber with the second highest water level below, water will also overflow from the second highest chamber, thus achieving sequential replenishment of water resources with temperature differences. This ensures that the temperature of the water that finally enters the chamber with the lowest water level will not be too low, thereby guaranteeing a rapid increase in temperature subsequently.

[0033] Working principle: When the water level in the first water tank 11 is detected by the first water level measuring device 3 to be below the threshold (posing a risk of dry burning), the first water level measuring device 3 immediately activates the water pump 44, which is electrically connected to it, and sends the backup water pump heated by the exhaust pipe 42 from the second water tank 41 to the first water tank 11. The water level in the first water tank 11 then rises, avoiding the risk of dry burning. It should be noted that the replenishment of high-temperature water ensures that the water in the first water tank can quickly rise back to the steaming temperature, so that the steaming and cooking operation of the rice steamer can be quickly resumed, avoiding a long interruption in the steaming and cooking process, which would affect the processing quality of the food.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dry-burn preventing rice steaming cabinet, characterized by: include A steam oven (1) has a first water tank (11) located at the bottom; A heating mechanism (2) is installed at the bottom of the steamer (1) to heat the water in the first water tank (11); The first water level measuring device (3) is set outside the steam oven (1) and connected to the first water tank (11) to measure the water level depth in the first water tank (11); A water storage mechanism (4) is installed on the top of the steamer (1) and stores spare water. The water storage mechanism (4) includes a second water tank (41). The second water tank (41) is provided with an exhaust pipe (42) that is connected to the steamer (1). The exhaust pipe (42) passes through the second water tank (41) and extends upwards out of the water tank. The second water tank (41) is also connected to a first water supply pipe (43). A water pump (44) is connected to the first water supply pipe (43). The outlet of the water pump (44) is connected to the first water tank (11). The water pump (44) is electrically connected to the first water level measuring device (3).

2. The anti-dry- burning rice steaming cabinet as set forth in claim 1, wherein: The bottom of the second water tank (41) is also connected to a second water supply pipe (45), which is connected to an external water source. A solenoid valve (46) is installed on the second water supply pipe (45). A second water level measuring device (47) is installed at the bottom of the water tank (41), and the second water level measuring device (47) is electrically connected to the solenoid valve (46).

3. The anti-dry-burning rice steamer as described in claim 2, characterized in that: The portion of the exhaust pipe (42) located in the second water tank (41) is a spiral coil.

4. The anti-dry-burning rice steamer as described in claim 2, characterized in that: The exhaust pipe (42) has at least two sets.

5. A rice steamer with anti-dry-burning feature as described in claim 4, characterized in that: The second water tank (41) has a partition (48) that divides the second water tank (41) into several independent water storage compartments. Each compartment has an exhaust pipe (42). The partition (48) has a drop setting so that the water storage compartments are distributed in a stepped manner. The second water level measuring device (47) and the first water supply pipe (43) are connected to the compartment with the lowest water level, and the second water supply pipe (45) is connected to the compartment with the highest water level.

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