Superheated steam egg steaming method based on water-heat circulation and egg steamer adapting to method

Abstract

The invention relates to a superheated steam egg steaming method based on water-heat circulation. The method is characterized by comprising the following steps: a, cleaning materials and loading the materials into a tray; b, poultry egg preheating; c, steaming the poultry eggs with superheated steam; and d, cooling and waste heat recovery. The superheated steam egg steaming method based on the water-heat cycle is low in energy consumption, high in heating rate, easy and convenient to operate and high in yield. Compared with the prior art, steam and evaporation latent heat can be recycled through a water-heat cycle steam generation mode, energy is saved and pollution is reduced while the heating rate is increased, and the heating temperature of the system can be higher than 100 DEG C through a superheated steam egg steaming mode; the problem of quality reduction caused by oxidation reaction of the food is avoided while the processing time is shortened.

Description

Technical Field

[0001] The invention relates to a food processing method, in particular to a superheated steam egg steaming method based on water-heat cycle. Background Art

[0002] As people's living standards improve, their consumption of poultry and egg products is gradually increasing. The traditional method of steaming eggs generally uses saturated steam as the heating medium. For example, Chinese Patent No. CN202410117953.X discloses an egg steaming machine and an egg steaming method, which uses high-temperature steam to steam eggs. Although the eggs just steamed can be eaten directly, the water in the equipment needs to be poured out after processing once, which is inefficient and consumes a lot of energy; Chinese Patent No. CN202011292006.2 discloses a poultry egg steaming and boiling equipment, which is simple and convenient to operate and can fix the eggs, but has low thermal utilization, and the eggs are easily heated unevenly, resulting in unstable processing quality; Chinese Patent No. CN206284311U discloses an egg steaming equipment, the main body of the equipment adopts a cylindrical tank design and is supported by a support rod, which has the advantages of convenient steaming operation, labor saving, and good sealing effect, but the manufacturing is complex and costly, and the volume is large and there are space and energy constraints. The problem of low resource utilization; nowadays, superheated steam has been widely studied and applied in food processing. The temperature of superheated steam is higher than that of water vapor, which can reach 105 degrees Celsius. It can effectively shorten the steaming time required for steamed eggs. It has high processing efficiency and can effectively save equipment investment; Chinese Patent No. CN202420057347.9 discloses a multifunctional superheated steam generator, which saves resources and has high heating efficiency, but has a complex structure and is difficult to operate. Direct discharge of steam will cause environmental pollution; Chinese Patent No. CN202011402440.1 discloses a superheated steam steaming and baking equipment and its processing control method. The equipment is simple, easy to use, can realize continuous automatic control, has the advantages of low cost and strong adaptability, but has low energy utilization, insufficient safety, and is prone to environmental pollution. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the traditional method of steaming poultry eggs has low heating efficiency, high energy consumption, and the poultry eggs are prone to oxidation reactions, resulting in low product quality. A method for steaming eggs with superheated steam based on a water-heat cycle is proposed, characterized in that the method comprises the following steps:

[0004] 1. A method for steaming eggs with superheated steam based on water-heat cycle, characterized in that the method comprises the following steps:

[0005] a. Material cleaning and tray loading: Select raw poultry eggs with complete eggshells, uniform color and regular shape, rinse them slowly with clean water, clean the feces and dirt on the surface of the eggs without damaging the eggshells, and select a loading tray equipped with round through holes that fit the corresponding egg size to load the eggs.

[0006] b. Preheating eggs: The plated eggs are placed on a material cart, which is driven by a worm gear transmission mechanism to be sent into a steamed egg preheating chamber. The hot air in the preheating chamber comes from the waste heat collected in the cooling and waste heat recovery chamber. The waste heat enters the preheating chamber through the hot air ventilation cavity, so that the temperature of the eggs is maintained at 20 to 40 degrees Celsius, thereby preheating the eggs. When the temperature sensor detects that the temperature of the eggs reaches a preset temperature, the cart is driven by the worm gear transmission mechanism to be sent into the steaming chamber.

[0007] c. Steaming eggs with superheated steam: Water is heated into superheated steam through two-stage heating. The electric heating tube heats the water in the water tank to evaporate it into steam. The steam enters the superheated steam egg steaming chamber through the mesh port, and is heated by the infrared heating element to raise the temperature to form superheated steam, which is used to heat the eggs on the tray of the material truck.

[0008] d. Cooling and waste heat recovery: When the temperature sensor detects that the temperature of the eggs reaches the preset temperature, the trolley is sent into the cooling and waste heat recovery chamber under the drive of the worm gear transmission mechanism, and the temperature is reduced to 25-30 degrees Celsius under the action of the louver fan. The cooling process of the eggs will release a large amount of heat energy. The system transfers this heat energy to the preheating chamber through the louver fan duct and the louver fan, and pushes the cooled trolley out of the cooling and waste heat recovery area to package the eggs.

[0009] Steps b, c, and d use the following egg steaming equipment to steam eggs:

[0010] A superheated steam egg steaming device based on water-heat cycle, mainly comprising a preheating chamber, an egg steaming chamber, a cooling and waste heat recovery chamber, a material car, a three-chamber track transmission system and a numerical control system. It is characterized in that: the preheating chamber comprises a preheating chamber box (11), an insulation curtain (1), a shutter (2), a fan (3), and a safety valve (8); the egg steaming chamber comprises an egg steaming chamber box (11), an insulation curtain (1), a shutter fan (small) (4), an electric heating tube (5), an infrared heating element (6), a solenoid valve 1 (12), a water tank and a valve (13), a solenoid valve 2 (14); the cooling and waste heat recovery chamber comprises a cooling and waste heat recovery The three-chamber rail transmission system comprises a worm 1 (15), a worm 2 (21), a turbine 1 (16), a turbine 2 (19), a bearing 1 (17), a bearing 2 (22), a motor (18), an outer worm (20), and the numerical control system comprises a display screen (9) and a button (10). BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a flow chart of the superheated steam egg steaming method based on water-heat cycle.

[0012] Figure 2 It is the water circulation diagram of the superheated steam egg steamer based on water-heat cycle.

[0013] Figure 3 It is the thermal cycle diagram of the superheated steam egg steamer based on water-heat cycle.

[0014] Figure 4 Diagram of the internal structure of a superheated steam egg steamer based on water-heat cycle.

[0015] Figure 5 It is a front view of a superheated steam egg steamer based on water-heat cycle.

[0016] Figure 6 It is the back side of the superheated steam egg steamer based on water-heat cycle.

[0017] Figure 7 This is the assembly diagram of the transmission mechanism of the superheated steam egg steamer based on water-heat cycle.

[0018] Figure 8 The utility model relates to a transmission mechanism of a superheated steam egg steaming machine based on a water-heat cycle.

[0019] Fig. 9 It is a front view of the material transport cart of the superheated steam egg steamer based on water-heat cycle.

[0020] As shown in the figure, 1-insulation curtain; 2-louver; 3-fan; 4-louver fan (small); 5-electric heating tube; 6-infrared heating element; 7-louver fan (large); 8-safety valve; 9-display screen; 10-button; 11-box; 12-solenoid valve I; 13-water tank and valve; 14-solenoid valve II; 15-worm I; 16-turbine I; 17-bearing I; 18-motor; 19-turbine II; 20-external worm; 21-worm II; 22-bearing II; 23-wheel; 24-tray; 25-frame; 26-condensate recovery tank; 27-cold air ventilation chamber; 28-hot air ventilation chamber. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] In order to better illustrate the present invention, further examples are given below.

[0023] Example 1

[0024] The embodiment of the present invention provides a method for steaming eggs, comprising the following steps:

[0025] a. Material cleaning and tray loading: Select raw eggs with intact eggshells, uniform color and regular shape, rinse them slowly with clean water, clean the feces and dirt on the surface of the eggs without damaging the eggshells, and select a loading tray equipped with a circular through hole with a diameter of 50 mm to load the eggs.

[0026] b. Preheating eggs: The above-mentioned plated eggs are loaded on a material cart, and the cart is sent into the egg steaming preheating chamber under the drive of the worm gear transmission mechanism. The hot air in the preheating chamber comes from the waste heat collected in the cooling and waste heat recovery chamber. The waste heat enters the preheating chamber through the hot air ventilation cavity, so that the temperature of the eggs is maintained at 35-40 degrees Celsius, thereby preheating the eggs. When the temperature sensor detects that the temperature of the eggs reaches the preset temperature, the cart is sent into the steaming chamber under the drive of the worm gear transmission mechanism.

[0027] c. Steaming eggs with superheated steam: Water is heated into superheated steam through two-stage heating. The electric heating tube heats the water in the water tank to evaporate it into water vapor. The water vapor enters the superheated steam egg steaming chamber through the mesh port, and is heated by the infrared heating element to raise the temperature to form superheated steam. The eggs on the tray of the material truck are heated with superheated steam for 9 minutes.

[0028] d. Cooling and waste heat recovery: When the temperature sensor detects that the temperature of the eggs reaches the preset temperature, the trolley is sent into the cooling and waste heat recovery chamber under the drive of the worm gear transmission mechanism, and the temperature is reduced to 25-30 degrees Celsius under the action of the louver fan. The cooling process of the eggs will release a large amount of heat energy. The system transfers this heat energy to the preheating chamber through the louver fan duct and the louver fan, and pushes the cooled trolley out of the cooling and waste heat recovery area to package the eggs.

[0029] Example 2

[0030] The embodiment of the present invention provides a method for steaming duck eggs, comprising the following steps:

[0031] a. Material cleaning and tray loading: Select raw duck eggs with complete eggshells, uniform color and regular shape, rinse them slowly with clean water, clean the feces and dirt on the surface of the duck eggs without damaging the eggshells, and select a loading tray equipped with a circular through hole with a diameter of 60 mm to load the duck eggs.

[0032] b. Preheating of poultry eggs: Place the above-mentioned plated duck eggs on a material cart, and drive the trolley into the egg steaming preheating chamber under the drive of a worm gear transmission mechanism. The hot air in the preheating chamber comes from the waste heat collected in the cooling and waste heat recovery chamber. The waste heat enters the preheating chamber through the hot air ventilation cavity, so that the temperature of the duck eggs is maintained at 30 to 35 degrees Celsius, thereby preheating the duck eggs. When the temperature sensor detects that the temperature of the duck eggs reaches the preset temperature, the trolley is driven into the steaming chamber under the drive of the worm gear transmission mechanism.

[0033] c. Steaming eggs with superheated steam: Water is heated into superheated steam through two-stage heating. The electric heating tube heats the water in the water tank to evaporate it into water vapor. The water vapor enters the superheated steam egg steaming chamber through the mesh port, and is heated by the infrared heating element to raise the temperature to form superheated steam. The duck eggs on the tray of the material truck are heated with superheated steam for 12 minutes.

[0034] d. Cooling and waste heat recovery: When the temperature sensor detects that the temperature of the duck eggs reaches the preset temperature, the trolley is sent into the cooling and waste heat recovery chamber under the drive of the worm gear transmission mechanism, and the temperature is reduced to 25-30 degrees Celsius under the action of the louver fan. The cooling process of the duck eggs will release a large amount of heat energy. The system transfers this heat energy to the preheating chamber through the louver fan duct and the louver fan, and pushes the cooled trolley out of the cooling and waste heat recovery area to package the duck eggs.

[0035] Example 3

[0036] The embodiment of the present invention provides a method for steaming goose eggs, comprising the following steps:

[0037] a. Material cleaning and tray loading: Select raw goose eggs with complete eggshells, uniform color and regular shape, rinse them slowly with clean water, clean the feces and dirt on the surface of the goose eggs without damaging the eggshells, and select a loading tray equipped with a circular through hole with a diameter of 70 mm to load the goose eggs.

[0038] b. Preheating of poultry eggs: Place the above-mentioned plated goose eggs on the material cart, and send the cart into the steamed egg preheating chamber under the drive of the worm gear transmission mechanism. The hot air in the preheating chamber comes from the waste heat collected in the cooling and waste heat recovery chamber. The waste heat enters the preheating chamber through the hot air ventilation cavity, so that the temperature of the goose eggs is maintained at 25-30 degrees Celsius, thereby preheating the goose eggs. When the temperature sensor detects that the temperature of the goose eggs reaches the preset temperature, the cart is sent into the steaming chamber under the drive of the worm gear transmission mechanism.

[0039] c. Steaming eggs with superheated steam: Water is heated into superheated steam through two-stage heating. The electric heating tube heats the water in the water tank to evaporate it into water vapor. The water vapor enters the superheated steam egg steaming chamber through the mesh port, and is heated by the infrared heating element to raise the temperature to form superheated steam. The goose eggs on the tray of the material truck are heated with superheated steam for 15 minutes.

[0040] d. Cooling and waste heat recovery: When the temperature sensor detects that the temperature of the goose eggs reaches the preset temperature, the trolley is sent into the cooling and waste heat recovery chamber under the drive of the worm gear transmission mechanism, and the temperature is reduced to 25-30 degrees Celsius under the action of the louver fan. The cooling process of the goose eggs will release a large amount of heat energy. The system transfers this heat energy to the preheating chamber through the louver fan duct and the louver fan, and pushes the cooled trolley out of the cooling and waste heat recovery area to package the goose eggs.

[0041] In actual use

[0042] The invention discloses a superheated steam egg steamer based on water-heat cycle. The tray is convenient for loading and unloading materials. The egg steaming chamber provides heating space for materials. The observation window can observe the steaming process and steaming effect. The secondary heating device in the egg steaming chamber provides superheated steam, a heating medium required for steaming eggs. The three-chamber track transmission system drives the material vehicle to move forward, thereby realizing the process of preheating, steaming and cooling the eggs. The latent heat of evaporation is transported between the three chambers through the opening and closing of air valves, thereby realizing heat cycle. After cooling, the superheated steam is liquefied into water and falls to the bottom of the box body. It returns to the water tank through the valve for repeated use, thereby realizing water circulation. The numerical control system can control the opening and closing of the equipment, the steaming time of eggs, the transportation speed of the material vehicle, the speed of the cooling fan, etc.

[0043] When the device is running

[0044] Assemble the tray with eggs on the material cart, turn on the CNC system, set the corresponding egg type and steaming parameters on the control panel, such as the heating time in the egg steaming room, the transportation speed of the material cart, etc., then start the material cart, observe the heating conditions of the preheating room, egg steaming room and cooling and waste heat recovery room through the observation window, the eggs are preliminarily preheated in the preheating room, the material cart transports the eggs to the egg steaming room, the eggs are steamed in the egg steaming room, and sent to the cooling and waste heat recovery room for cooling. After cooling, the material cart sends the egg steaming equipment out to unload the tray and pack the eggs.

Claims

1. A method for steaming eggs with superheated steam based on water-heat cycle, characterized in that: The method comprises the following steps: a. Material cleaning and tray loading: Select raw poultry eggs with complete eggshells, uniform color and regular shape, rinse them slowly with clean water, clean the feces and dirt on the surface of the eggs without damaging the eggshells, and select a loading tray equipped with circular through holes that are suitable for the corresponding egg size to tray the eggs. b. Preheating of poultry eggs: Load the above-mentioned trayed poultry eggs on the material cart, and send the cart into the steamed egg preheating chamber under the drive of the worm gear transmission mechanism. The hot air in the preheating chamber comes from the waste heat collected in the cooling and waste heat recovery chamber. The waste heat enters the preheating chamber through the hot air ventilation cavity, so that the temperature of the poultry eggs is maintained at 30~40 degrees Celsius, thereby preheating the poultry eggs. When the temperature sensor detects that the temperature of the poultry eggs reaches the preset temperature, the cart is sent into the steaming chamber under the drive of the worm gear transmission mechanism. c. Steaming eggs with superheated steam: water is heated into superheated steam through two-stage heating. The electric heating tube heats the water in the water tank to evaporate it into water vapor. The water vapor enters the superheated steam egg steaming chamber through the mesh port, and is heated by the infrared heating element to raise the temperature to form superheated steam. The eggs on the material cart tray are heated with superheated steam. d. Cooling and waste heat recovery: When the temperature sensor detects that the temperature of the eggs reaches the preset temperature, the trolley is sent into the cooling and waste heat recovery chamber under the drive of the worm gear transmission mechanism. The temperature is reduced to 25~30 degrees Celsius under the action of the louver fan. The cooling process of the eggs will release a lot of heat energy. The system transmits this heat energy to the preheating chamber through the louver fan duct and the louver fan, and pushes the cooled trolley out of the cooling and waste heat recovery area to package the eggs. The steps b, c, and d use the following egg steaming equipment to steam poultry eggs: a superheated steam egg steaming equipment based on water-heat circulation, mainly comprising a preheating chamber, an egg steaming chamber, a cooling and waste heat recovery chamber, a water-heat circulation system, a material car, a three-chamber track transmission system, and a numerical control system. It is characterized in that: the preheating chamber comprises a preheating chamber box (11), an insulation curtain (1), a louver (2), a fan (3), and a safety valve (8); the egg steaming chamber comprises an egg steaming chamber box (11), an insulation curtain (1), a louver fan (small) (4), an electric heating tube (5), an infrared heating element (6), a solenoid valve 1 (12), a water tank and a valve (13), and a solenoid valve 2 (14); the cooling and waste heat recovery chamber comprises a cooling and waste heat recovery chamber box (11), an insulation curtain (1), a louver fan (large) (7), and the water-heat circulation system It includes a louver fan (small) (4), a louver fan (large) (7), a cold air ventilation chamber (27), a hot air ventilation chamber (28), a water tank (13), and a condensate recovery tank (26). The material cart includes wheels (23), a tray (24), and a frame (25). The three-chamber track transmission system includes a worm 1 (15), a worm 2 (21), a turbine 1 (16), a turbine 2 (19), a bearing 1 (17), a bearing 2 (22), a motor (18), and an external worm (20). The numerical control system includes a display screen (9) and a button (10).

2. The method for steaming eggs with superheated steam based on water-heat cycle according to claim 1, characterized in that: The transportation of waste heat in the cooling and waste heat recovery chamber can be controlled by opening and closing the safety valve (8) above the preheating chamber, and the combination of the shutters (2) and the fan (3) on both sides can complete the heat dissipation treatment of the cavity.

3. The method for steaming eggs with superheated steam based on water-heat cycle according to claim 1, characterized in that: In the egg steaming chamber, the electric heating tube (5) heats the water in the water tank and the valve (13) into water vapor, and the infrared heating element (6) heats the water vapor into superheated steam. The opening and closing of the solenoid valve 2 (14) controls the flow direction of the steam. When a batch of eggs is processed, the superheated steam enters the cooling and waste heat recovery chamber.

4. The method for steaming eggs with superheated steam based on water-heat cycle according to claim 1, characterized in that: The material cart carries multiple layers of trays, and can realize large-scale steamed egg heating; the three-chamber track transmission system is powered by a motor to drive the worm gear to move, thereby realizing the transmission of the trolley between the three chambers; the numerical control system can display various parameters of the three chambers during the steaming process, and the transportation of the material cart and the entire egg steaming process can be regulated by buttons.

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