Environment-friendly steam recovery recycling steam cabinet

Abstract

The utility model discloses an environmental protection type steam recycling and recycling steam cabinet, including the cabinet, the bottom wall of cabinet is installed with water tank, and the inside installation of water tank has the heating pipeline, and the upper side wall of water tank is equipped with the steam exhaust port of uniform distribution, still includes recovery subassembly, recovery subassembly: it includes the gas collecting hood, rectangle bin, ceramic plate, cylindrical bin, mounting bracket, pivot and spiral piece, the gas collecting hood fixed connection in the upper end of cabinet and links with cabinet, the rectangle bin is installed in the back side of cabinet, and the rectangle bin is linked with the gas collecting hood through the collecting pipeline, and this environmental protection type steam recycling and recycling steam cabinet, through the recovery subassembly to the abandoned steam carries out the capture, purification and solid gas liquid separation, and the waste heat of the steam and condensate water after separation is through the heat exchange for the water tank preheating, has reduced the thermal energy waste, has avoided the pollution problem of the impurity containing steam direct emission, has effectively promoted the energy utilization rate and the environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of steam cabinet technology, specifically an environmentally friendly steam recovery and recycling steam cabinet. Background Technology

[0002] Steaming is widely used in many fields such as catering services, food processing, and industrial production as a heating method that can retain the nutritional components of food to the maximum extent and avoid the generation of harmful substances. As the core equipment for realizing the steaming process, the performance of the steam cabinet directly affects the quality of food processing, production efficiency, and energy consumption. With the increasing prominence of global energy shortages and the continuous tightening of environmental regulations, the market has put forward higher requirements for the energy efficiency and environmental protection of steam cabinets. How to achieve efficient utilization of steam resources and reduce energy waste through technological innovation has become an important direction for the development of the steam cabinet industry.

[0003] Currently, steam cabinets on the market are generally composed of core structures such as cabinet body, water tank, heating device and steaming chamber. Their working process is roughly as follows: the heating device heats the water in the water tank. After the water reaches the boiling point, it vaporizes to form high-temperature steam. The steam enters the steaming chamber through the preset exhaust port and exchanges heat with the food in the chamber to achieve steaming. During the process, some steam will condense into water droplets due to the cold and adhere to the cabinet wall or the surface of the food. The excess steam that does not participate in heat exchange will be directly discharged into the outside environment through the exhaust port on the top of the cabinet, completing a single steaming cycle. This type of steam cabinet is more common in small family scenarios or low-frequency use scenarios and can basically meet basic steaming needs.

[0004] However, existing steam cabinets have some problems in practical applications, mainly in terms of energy efficiency and environmental protection. On the one hand, the exhaust steam still contains a lot of residual heat, and direct discharge will cause serious waste of heat energy, resulting in high overall energy consumption of the steam cabinet. Especially in commercial high-frequency use scenarios, energy costs increase significantly. On the other hand, the exhaust steam often contains residues, oil stains and other impurities generated during food processing. Direct discharge into the air will not only pollute the surrounding environment, but may also cause the area around the equipment to be damp due to steam condensation, affecting the cleanliness of the production environment. Therefore, we propose an environmentally friendly steam recovery and recycling steam cabinet. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an environmentally friendly steam recovery and recycling steam cabinet. By capturing, purifying and separating solid-gas-liquid by the recovery component, the waste steam can be effectively solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly steam recovery and recycling steam cabinet, including a cabinet body, a water tank installed on the bottom wall of the cabinet body, a heating pipe installed inside the water tank, and evenly distributed steam exhaust ports on the upper side wall of the water tank, and also including a recovery component;

[0007] The recovery assembly includes a gas collection hood, a rectangular chamber, ceramic plates, a cylindrical chamber, a mounting frame, a rotating shaft, and spiral blades. The gas collection hood is fixedly connected to the upper end of the cabinet and communicates with the cabinet. The rectangular chamber is installed on the rear side of the cabinet and is connected to the gas collection hood via a collection pipe. The rectangular chamber has symmetrically distributed ceramic plates installed inside, each with a sieve hole in the center. The cylindrical chamber is installed on the right side of the cabinet, and a mounting frame is fixedly connected to the lower end of the cylindrical chamber. A rotating shaft is rotatably connected to the center of the mounting frame, and spiral blades are evenly distributed on the outer arc surface of the rotating shaft. The cylindrical chamber is used in conjunction with a water tank, and the rectangular chamber and the cylindrical chamber are used together. The recovery assembly captures, purifies, and separates solid, gas, and liquid vapors. The waste heat from the separated vapor and condensate is used to preheat the water tank through heat exchange, which reduces heat energy waste and avoids pollution problems caused by the direct emission of vapors containing impurities, effectively improving energy utilization and environmental friendliness.

[0008] Furthermore, a microcontroller is installed at the lower end of the cabinet, and the input terminal of the microcontroller is electrically connected to an external power supply for stable control.

[0009] Furthermore, the recycling component also includes Z-shaped branch pipes, which are installed at the lower end of the interior of the water tank. The left ends of the Z-shaped branch pipes pass through the left side wall of the water tank and the left side wall of the cabinet in sequence. The outlet at the upper end of the cylindrical compartment is connected to the right end of the upper Z-shaped branch pipe through a steam recovery pipe, and the outlet at the lower end of the cylindrical compartment is connected to the right end of the lower Z-shaped branch pipe through a condensate recovery pipe. This facilitates heat exchange between the recovered steam and condensate and the water in the water tank, reducing energy consumption.

[0010] Furthermore, the recycling component also includes a connecting pipe, which connects the rectangular bin and the cylindrical bin.

[0011] Furthermore, the heating pipe is equipped with a heating wire inside, and the input end of the heating wire is electrically connected to the output end of the microcontroller to ensure stable heating.

[0012] Furthermore, the rear inner wall of the cabinet is equipped with uniformly distributed straight-tube-shaped metal-cased temperature sensors, which are used in conjunction with a microcontroller to detect temperature.

[0013] Furthermore, the left and right inner walls of the cabinet are provided with evenly distributed steaming tray tracks to facilitate the placement of steaming trays.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This environmentally friendly steam recovery and recycling steam cabinet has the following advantages:

[0015] The recycling components can efficiently recover, purify, and recycle waste steam in the steamer. The steam collection hood can form a negative pressure adsorption area to capture waste steam containing uncondensed steam, condensate mist, and a small amount of food impurities. The inclined ceramic plate in the rectangular chamber can intercept food residue and large condensate droplets through the sieve holes, achieving preliminary steam purification. The intercepted material is easy to clean regularly. The spiral blades in the cylindrical chamber rotate under the impact of steam, using centrifugal force to separate tiny condensate droplets from the steam. The separated steam enters the Z-shaped diversion pipe in the water tank through the steam recovery pipe, where it exchanges heat with cold water to achieve preheating and energy saving. The condensate enters another Z-shaped diversion pipe through the condensate recovery pipe, making full use of waste heat and reducing energy consumption. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional structural diagram of the water tank of this utility model;

[0018] Figure 3 This is a schematic diagram of the rear structure of this utility model;

[0019] Figure 4 This is a partial structural diagram of the water tank and cylindrical compartment of this utility model;

[0020] Figure 5 This is a partial structural diagram of the cylindrical compartment of this utility model.

[0021] In the diagram: 1 Cabinet, 2 Recycling Components, 21 Gas Collection Hood, 211 Collection Pipe, 22 Rectangular Chamber, 23 Ceramic Plate, 24 Cylindrical Chamber, 25 Mounting Bracket, 26 Rotary Shaft, 27 Spiral Blade, 28 Z-shaped Branching Pipe, 29 Connecting Pipe, 3 Steam Recovery Pipe, 4 Condensate Recovery Pipe, 5 Water Tank, 6 Heating Pipe, 7 Straight Pipe Metal-Encased Temperature Sensor, 8 Steam Tray Rail, 9 Microcontroller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This embodiment provides a technical solution: an environmentally friendly steam recovery and recycling steam cabinet, including a cabinet body 1 (the front end of the cabinet body 1 is hinged to a cabinet door, the edge of the cabinet door is provided with a rubber sealing strip, and a first closing lock is provided between the end of the cabinet door away from the hinge and the cabinet body 1, the first closing lock is a commonly used closing lock in the prior art), the left and right inner walls of the cabinet body 1 are provided with evenly distributed steaming tray tracks 8, a single-chip microcomputer 9 is installed at the lower end of the cabinet body 1, the input end of the single-chip microcomputer 9 is electrically connected to an external power supply, a water tank 5 is installed on the bottom wall of the cabinet body 1 (a water supply pipe is installed on the rear side wall of the water tank 5, and the rear side wall of the water supply pipe penetrates the rear side wall of the cabinet body 1), a heating pipe 6 is installed inside the water tank 5 (a level gauge can be installed inside the water tank 5, the lowest liquid level of the level gauge is higher than the water tank 1), and a heating pipe 6 is installed inside the water tank 5 (a level gauge can be installed inside the water tank 5, the lowest liquid level of the level gauge is higher than the water tank 1). At the top of the heating pipe 6, a level gauge can be bidirectionally electrically connected to a microcontroller 9. The level gauge can be a high-temperature resistant level gauge commonly used in existing technology, such as the UHZ-50 series magnetic flip-column level gauge. The heating pipe 6 is equipped with a heating wire, and the input end of the heating wire is electrically connected to the output end of the microcontroller 9. The upper side wall of the water tank 5 has evenly distributed steam exhaust ports. The rear inner wall of the cabinet 1 is equipped with evenly distributed straight tube-type metal shell encapsulated temperature sensors 7. The straight tube-type metal shell encapsulated temperature sensors 7 are used in conjunction with the microcontroller 9 (the straight tube-type metal shell encapsulated temperature sensors 7 are composed of a stainless steel metal shell and an NTC thermistor encapsulated inside it, and the NTC thermistor is bidirectionally electrically connected to the microcontroller 9). It also includes a recycling component 2.

[0024] Recycling Component 2: This component includes a gas collection hood 21, a rectangular chamber 22, ceramic plates 23, a cylindrical chamber 24, a mounting bracket 25, a rotating shaft 26, and a spiral blade 27. The gas collection hood 21 is fixedly connected to the upper end of the cabinet 1 and communicates with the cabinet 1. The rectangular chamber 22 is installed on the rear side of the cabinet 1. The rectangular chamber 22 and the gas collection hood 21 are connected through a collection pipe 211 (the collection pipe 211 is connected in such a way that its front end is connected to the through hole at the upper end of the gas collection hood 21, and its lower end is connected to the inlet at the lower end of the left side wall of the rectangular chamber 22). The rectangular chamber 22 has symmetrically distributed ceramic plates 23 installed inside. (The rear side wall of the rectangular chamber 22 has two drain doors hinged to it; the upper drain door is located between the two ceramic plates 23, and the lower drain door...) On the lower side of the ceramic plate 23 below the drain door, rubber sealing rings are provided at the edges of the drain door. A second closing lock is provided between the end of the drain door away from the hinge and the rear side wall of the rectangular compartment 22. The second closing lock is a commonly used closing lock in the prior art. Screen holes are opened in the middle of the ceramic plate 23 (the ceramic plates 23 are all inclined with the right side lower and the left side higher. The inlet at the lower end of the left side wall of the rectangular compartment 22 is located on the lower side of the ceramic plate 23). The cylindrical compartment 24 is installed on the right side of the cabinet 1 (the lower end of the cylindrical compartment 24 has a conical structure). The lower end of the cylindrical compartment 24 is fixedly connected to the mounting bracket 25. The middle of the mounting bracket 25 is rotatably connected to the rotating shaft 26. The outer arc surface of the rotating shaft 26 is provided with evenly distributed spiral blades 27. In conjunction with water tank 5, the recovery assembly 2 also includes Z-shaped branch pipes 28, which are installed at the lower end of the interior of water tank 5. The left ends of the Z-shaped branch pipes 28 pass through the left side wall of water tank 5 and the left side wall of cabinet 1. The upper outlet of cylindrical chamber 24 is connected to the right end of the upper Z-shaped branch pipe 28 via steam recovery pipe 3, and the lower outlet of cylindrical chamber 24 is connected to the right end of the lower Z-shaped branch pipe 28 via condensate recovery pipe 4. Rectangular chamber 22 is used in conjunction with cylindrical chamber 24. The recovery assembly 2 also includes a connecting pipe 29, which connects rectangular chamber 22 and cylindrical chamber 24. After connecting to an external power source, the operator sets the steaming temperature via microcontroller 9. The microcontroller 9 outputs control signals to the heating wire in the heating pipe 6, which is energized and heats up, transferring the heat to the water in the water tank 5. The water in the tank 5 heats up to its boiling point and vaporizes to form saturated steam. The steam continuously enters the steaming chamber of the cabinet 1 through the evenly distributed steam outlets on the upper side wall of the water tank 5. A temperature sensor 7, encased in a straight-tube metal shell on the rear inner wall of the cabinet 1, monitors the temperature inside the steaming chamber in real time and transmits the data to the microcontroller 9. When the temperature is lower than the set value, the microcontroller 9 controls the heating wire to increase its power; when the temperature is higher than the set value, the heating wire power decreases, ensuring that the temperature inside the steaming chamber remains stable within the target range. The operator pushes the steaming tray containing the food into the steaming chamber along the steaming tray track 8 in advance, allowing for thorough heat exchange between the steam and the food.The process achieves the cooking of ingredients through steaming. Simultaneously, some of the steam condenses upon cooling, while the uncondensed steam accumulates within the steaming chamber and diffuses upwards. The steam collection hood 21 at the top of cabinet 1 forms a negative pressure adsorption area. (This negative pressure adsorption area is due to the upward diffusion characteristic of steam within the steaming chamber, causing it to continuously flow towards the steam collection hood 21. Furthermore, the steam collection hood 21, through the collection pipe 211, rectangular chamber 22, connecting pipe 29, and cylindrical chamber 24, forms a directional flow channel, continuously guiding and outputting steam. Additionally, the relative sealing between cabinet 1 and the steam collection hood 21 prevents a large influx of external air, thus keeping the pressure inside the steam collection hood 21 lower than...) The steaming chamber of cabinet 1 forms a negative pressure adsorption area to capture waste steam. The waste steam (containing uncondensed steam, condensate mist, and a small amount of food impurities) within the steaming chamber is collected and then transported through collection pipe 211 to a rectangular chamber 22 on the rear side of the cabinet. Symmetrically distributed inclined ceramic plates 23 within the rectangular chamber 22 form a filter barrier. When steam flows through the ceramic plates 23, any food residue and large condensate droplets that may be trapped are intercepted by the sieve holes. Because the ceramic plates 23 are inclined with a lower right side and a higher left side, the intercepted impurities and condensate slide downwards along the plate surface under gravity and can pass through the rectangular chamber 22. The drain door on the side wall is cleaned regularly. The steam after preliminary purification flows to the right side of the rectangular chamber 22. The steam that has been preliminarily purified in the rectangular chamber 22 enters the cylindrical chamber 24 on the right side of the cabinet through the connecting pipe 29. At this time, the steam still contains a large number of tiny condensate droplets. After the steam enters the cylindrical chamber 24, it impacts the spiral blades 27 on the outer arc surface of the rotating shaft 26, causing the rotating shaft 26 to rotate around the middle of the mounting frame 25. During the rotation, the spiral blades 27 generate centrifugal force on the gas-liquid mixture. The denser condensate droplets are thrown towards the inner wall of the cylindrical chamber 24 and flow downwards along the wall to the conical area at the lower end of the cylindrical chamber 24, while the less dense steam rises upwards. Steam collected at the top of the cylindrical chamber 24 is transported via steam recovery pipe 3 to the upper Z-shaped branch pipe 28. Since the Z-shaped branch pipe 28 is installed inside the lower part of the water tank 5, the high-temperature steam in the pipe exchanges heat with the cold water in the tank, preheating the water and reducing the energy consumption of the heating element. Condensate collected at the bottom of the cylindrical chamber 24 is transported via condensate recovery pipe 4 to the lower Z-shaped branch pipe 28, where it also exchanges heat with the cold water in the tank 5. The waste heat of the condensate is fully utilized, and it is finally discharged through the left end of the Z-shaped branch pipe 28, facilitating steam recovery and reuse.

[0025] The working principle of the environmentally friendly steam recovery and recycling steamer provided by this utility model is as follows: After connecting to an external power source, the operator sets the steaming temperature and time parameters through a microcontroller 9. The microcontroller 9 outputs a control signal to the heating wire in the heating pipe 6, which heats up and transfers the heat to the water in the water tank 5. The water in the water tank 5 is heated to its boiling point and then vaporizes to form saturated steam. The steam continuously enters the steaming chamber of the cabinet 1 through the evenly distributed steam outlets on the upper side wall of the water tank 5. A temperature sensor 7, encased in a straight tube-shaped metal shell on the inner rear wall of the cabinet 1, monitors the temperature inside the steaming chamber in real time and transmits the detection data to the microcontroller 9. When the temperature is lower than the set value, the microcontroller 9 controls the heating wire to increase its power; when the temperature is higher than the set value, the heating wire power decreases. To ensure the temperature inside the steaming chamber remains stable within the target range, operators push the steaming tray containing the food into the steaming chamber along the tray track 8 beforehand. This allows for thorough heat exchange between the steam and the food, achieving proper cooking. Simultaneously, some steam condenses upon cooling, while uncondensed steam accumulates within the steaming chamber and diffuses upwards. The vapor collection hood 21 at the top of cabinet 1 forms a negative pressure adsorption area. (This negative pressure adsorption area is due to the upward diffusion characteristic of steam within the steaming chamber, causing it to continuously flow towards the vapor collection hood 21. Furthermore, the vapor collection hood 21, through the collection pipe 211, rectangular chamber 22, connecting pipe 29, and cylindrical chamber 24, forms a directional flow channel, continuously guiding and outputting steam. Additionally, the relative sealing between cabinet 1 and the vapor collection hood 21 prevents a large influx of external air, thus ensuring the vapor collection hood 21 remains in a stable and efficient manner.) The steaming chamber, with its internal pressure lower than that of cabinet 1, forms a negative pressure adsorption area to capture waste steam. The waste steam (containing uncondensed steam, condensate mist, and a small amount of food impurities) within the steaming chamber is collected and then transported through collection pipe 211 to a rectangular chamber 22 on the rear side of the cabinet. Symmetrically distributed inclined ceramic plates 23 within the rectangular chamber 22 form a filter barrier. As steam flows through the ceramic plates 23, any food residue and large condensate droplets that may be trapped are intercepted by the sieve holes. Because the ceramic plates 23 are inclined with the right side lower than the left, the intercepted impurities and condensate slide downwards along the plate surface under gravity. They can be periodically cleaned through the drain door on the rear wall of the rectangular chamber 22. The preliminarily purified steam then flows to the right side of the rectangular chamber 22. Steam enters the cylindrical chamber 24 on the right side of the cabinet through the connecting pipe 29. At this time, the steam still contains a large number of tiny condensed water droplets. After entering the cylindrical chamber 24, the steam impacts the spiral blades 27 on the outer arc surface of the rotating shaft 26, causing the rotating shaft 26 to rotate around the middle of the mounting frame 25. During the rotation, the spiral blades 27 generate centrifugal force on the gas-liquid mixture. The denser condensed water droplets are thrown towards the inner wall of the cylindrical chamber 24 and flow downwards along the wall to the conical area at the lower end of the cylindrical chamber 24. The less dense steam rises and gathers at the upper part of the cylindrical chamber 24. The steam at the upper end of the cylindrical chamber 24 is transported to the upper Z-shaped branch pipe 28 through the steam recovery pipe 3. Since the Z-shaped branch pipe 28 is installed inside the lower end of the water tank 5, the high-temperature steam in the pipe exchanges heat with the cold water in the water tank.To preheat the water in water tank 5 and reduce the energy consumption of the heating wire, the condensate collected at the lower end of the cylindrical chamber 24 is transported through the condensate recovery pipe 4 to the lower Z-shaped branch pipe 28, where it also exchanges heat with the cold water in water tank 5. The waste heat of the condensate is fully utilized, and it is finally discharged through the left end of the Z-shaped branch pipe 28.

[0026] It is worth noting that the microcontroller 9 disclosed in the above embodiments controls the operation of the heating wire inside the condensate recovery pipe 4 and the NTC thermistor inside the temperature sensor 7 encapsulated in a straight tube-type metal shell using methods commonly used in the prior art.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An environmentally friendly steam recovery and recycling steam cabinet, comprising a cabinet body (1), wherein a water tank (5) is installed on the bottom wall of the cabinet body (1), a heating pipe (6) is installed inside the water tank (5), and a uniformly distributed steam outlet is provided on the upper side wall of the water tank (5), characterized in that: It also includes a recycling component (2); The recycling component (2) includes a gas collection hood (21), a rectangular chamber (22), a ceramic plate (23), a cylindrical chamber (24), a mounting bracket (25), a rotating shaft (26), and a spiral blade (27). The gas collection hood (21) is fixedly connected to the upper end of the cabinet (1) and communicates with the cabinet (1). The rectangular chamber (22) is installed on the rear side of the cabinet (1). The rectangular chamber (22) and the gas collection hood (21) are connected by a collection pipe (211). The rectangular chamber (22) is equipped with a... The ceramic plates (23) are symmetrically distributed, and the middle of each ceramic plate (23) is provided with a sieve hole. The cylindrical compartment (24) is installed on the right side of the cabinet (1). The lower end of the cylindrical compartment (24) is fixedly connected to the mounting bracket (25). The middle of the mounting bracket (25) is rotatably connected to the rotating shaft (26). The outer arc surface of the rotating shaft (26) is provided with evenly distributed spiral blades (27). The cylindrical compartment (24) is used in conjunction with the water tank (5), and the rectangular compartment (22) is used in conjunction with the cylindrical compartment (24).

2. The environmentally friendly steam recovery and recycling steam cabinet according to claim 1, characterized in that: A microcontroller (9) is installed at the lower end of the cabinet (1), and the input terminal of the microcontroller (9) is electrically connected to an external power source.

3. The environmentally friendly steam recovery and recycling steam cabinet according to claim 1, characterized in that: The recycling component (2) also includes a Z-shaped split pipe (28), which is installed at the lower end of the interior of the water tank (5). The left end of the Z-shaped split pipe (28) passes through the left side wall of the water tank (5) and the left side wall of the cabinet (1) in sequence. The outlet at the upper end of the cylindrical chamber (24) is connected to the right end of the upper Z-shaped split pipe (28) through a steam recovery pipe (3). The outlet at the lower end of the cylindrical chamber (24) is connected to the right end of the lower Z-shaped split pipe (28) through a condensate recovery pipe (4).

4. The environmentally friendly steam recovery and recycling steam cabinet according to claim 1, characterized in that: The recycling component (2) also includes a connecting pipe (29), through which the rectangular bin (22) and the cylindrical bin (24) are connected.

5. The environmentally friendly steam recovery and recycling steam cabinet according to claim 2, characterized in that: The heating pipe (6) is equipped with a heating wire inside, and the input end of the heating wire is electrically connected to the output end of the microcontroller (9).

6. The environmentally friendly steam recovery and recycling steam cabinet according to claim 2, characterized in that: The cabinet (1) is equipped with uniformly distributed straight tube-shaped metal shell-encapsulated temperature sensors (7), which are used in conjunction with a microcontroller (9).

7. The environmentally friendly steam recovery and recycling steam cabinet according to claim 1, characterized in that: The cabinet (1) has evenly distributed steaming tray tracks (8) on both the left and right inner walls.

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