Agricultural product processing production line with energy-saving system and process thereof

Abstract

The present application belongs to the field of frozen agricultural products, and particularly relates to a frozen agricultural product processing line with an energy-saving system and a process thereof. The shelled corn is sequentially subjected to husking, cleaning, buffer heating, steaming, normal-temperature water cooling, air drying, quick freezing, packaging and storage. The quick freezing is achieved by circulating refrigerant. The heat generated by the refrigerant during heat release is recovered by a heat recovery device, and the heated water is used to heat the water in the heat preservation tank. The hot water generated by steaming and normal-temperature water cooling absorbs heat through a heat exchanger, and heats the water required for buffer heating. The present application can effectively recover the heat released by the refrigerant, and utilize the heat to an electric steam boiler, so that the heat released by the refrigerant is fully utilized. In the process of steaming and cooling, the hot water discharged is exchanged with fresh water through a heat exchanger, and the heat in the hot water is recovered, so that the required heat consumption is reduced, and the effect of environmental protection and energy saving is achieved.

Description

Technical Field

[0001] This invention belongs to the field of quick-freezing production and processing of agricultural products, and specifically relates to an agricultural product processing production line with an energy-saving system and its process. Background Technology

[0002] Quick-freezing of agricultural products is a modern food processing method that involves rapidly freezing fresh agricultural products to preserve their original nutritional components and flavor. This method is widely used for various agricultural products, such as vegetables, fruits, meats, and seafood. For example, the quick-freezing process for corn typically includes cleaning and processing, steaming, rapid freezing, packaging, and storage. During steaming, steam boilers are usually used to provide steam, while quick-freezing typically uses a blast freezer. To promote energy conservation and emission reduction, electric steam boilers are usually chosen. However, while electric steam boilers have no environmental impact, their high electricity consumption undoubtedly increases the operating costs for businesses.

[0003] In response to these problems, the inventors considered that there is a lot of heat loss in the entire production line, such as the heat released by the refrigerant in the quick-freezing machine, the hot wastewater generated when cooling corn, and the hot wastewater generated during preheating. If this heat can be recovered and reused, it will definitely reduce the production costs for enterprises and be more in line with the concept of energy conservation and environmental protection. Summary of the Invention

[0004] The purpose of this invention is to provide an agricultural product processing production line and its process with an energy-saving system, so as to solve the problems existing in the prior art. To achieve the above-mentioned objective, the technical solution adopted by this invention is as follows:

[0005] An agricultural product processing production line with an energy-saving system includes a pretreatment section, a steaming section, and a quick-freezing section through which the raw materials pass in sequence;

[0006] The quick-freezing section uses a refrigerant to form a cooling cycle for quick-freezing. The refrigerant is connected to a cooling tower and cools down and releases heat in the cooling tower. The heat generated is recovered through a heat recovery device, thereby heating the water in the heat recovery device. The heat recovery device is connected to an insulated water tank, and the water heated in the heat recovery device enters the insulated water tank.

[0007] The insulated water tank is connected to the liquid inlet of the electric steam boiler, and the steam outlet of the electric steam boiler is connected to the steaming section.

[0008] Furthermore, a buffer heating section is provided between the pretreatment section and the steaming section, and a room temperature water cooling section is provided between the steaming section and the quick-freezing section;

[0009] The ambient temperature water cooling section cools the raw materials with fresh water, and the drain end of the ambient temperature water cooling section is connected to the heat exchanger, allowing hot water to enter the heat exchanger.

[0010] The drain end of the steaming section is connected to a heat exchanger, allowing hot water to enter the heat exchanger. The output end of the heat exchanger is connected to the buffer heating section, allowing water with residual heat to enter the buffer heating section to provide heat.

[0011] Furthermore, the front end of the quick-freezing section is also provided with an air-drying and draining section; the pre-treatment section includes a peeling section and a washing section arranged in sequence; and it also includes a packaging section and a warehousing section arranged at the rear end of the quick-freezing section.

[0012] Furthermore, the cooling tower includes a tower body, coils, motor, fan blades, switching mechanism, and connecting mechanism;

[0013] The coil is installed inside the tower body, and the two ends of the coil are respectively connected to a refrigerant input pipe and a refrigerant output pipe. The refrigerant input pipe and the refrigerant output pipe are connected to the compressor in the quick-freezing section.

[0014] The top of the tower is provided with a ventilation opening, and the fan blades are installed inside the ventilation opening. The fan blades are connected to the output end of the motor through a main shaft, and the main shaft is connected to the switching mechanism through the connecting mechanism.

[0015] The switching mechanism is located below the fan blades and has ventilation holes. When the main shaft rotates, the switching mechanism opens the ventilation holes, and when the main shaft stops, the switching mechanism closes the ventilation holes.

[0016] Furthermore, the switching mechanism includes a rotating shaft, a baffle, and a fixing plate;

[0017] The fixing plate is fixedly connected to the inner wall of the vent and covers the vent; the vent hole is set on the fixing plate and has a through hole structure; the rotating shaft is rotatably set in the vent hole, and the baffle is fixedly connected to the rotating shaft. When the baffle is set horizontally, it covers the vent hole, and when it is set vertically, it opens the vent hole; the end of the rotating shaft is connected to the connecting mechanism.

[0018] Furthermore, the connecting mechanism includes a housing, a spring, a sliding shaft, a limiting plate, and a push rod;

[0019] The main shaft is circumferentially fixedly connected to multiple housings, and the sliding shaft is slidably disposed within each of the multiple housings; the spring is disposed within the housing and acts on the sliding shaft; one end of the sliding shaft away from the main shaft protrudes from the housing and abuts against one side of the limiting plate, and the other side of the limiting plate is fixedly connected to the push rod; the push rod protrudes from the wall of the vent and is connected to the rotating shaft for pushing the rotating shaft to rotate.

[0020] Furthermore, the connecting mechanism also includes a connecting frame and a rack. One end of the push rod that protrudes from the vent is fixedly connected to the connecting frame, and the bottom of the connecting frame is fixedly connected to the rack. The rack is horizontally arranged and slidably disposed on the outer wall of the tower body. The rack meshes with a gear. One end of the gear protrudes from the outer wall of the tower body and is fixedly connected to the gear.

[0021] Furthermore, the heat recovery device includes a tank, an inclined plate, and an exhaust port; the lower end of the tower is connected to a cooling tower through a ventilation pipe, and hot air enters the tower from the ventilation pipe and is discharged through the exhaust port at the top of the tank;

[0022] The inclined plates are fixedly installed inside the tank. Multiple inclined plates are installed from top to bottom in the tank. The inclined plates are installed inclined downwards and distributed on both sides of the tank to form a structure that allows the circulating water to flow continuously downwards.

[0023] A water inlet pipe is provided on the uppermost inclined plate, which passes through the tank body and connects to the insulated water tank; a water return pipe is provided below the lowermost inclined plate, which connects to the insulated water tank, and a pump body is provided on the water return pipe.

[0024] Furthermore, a first guide channel is provided on the uppermost inclined plate. The first guide channel has a funnel-shaped structure, including a concentrating part and a guiding part. The width of the concentrating part is smaller than that of the guiding part. The water inlet pipe is connected to the concentrating part. Multiple guide plates are provided in the guiding part, and a flow channel is formed between two connected guide plates.

[0025] A second flow guide groove is provided on the inclined plate located below, and multiple straight flow channels are arranged side by side in the second flow guide groove.

[0026] An agricultural product processing technology with an energy-saving system includes:

[0027] The raw materials are sequentially pretreated, buffered and heated, steamed, cooled at room temperature water and quick-frozen;

[0028] Quick-freezing is achieved through the circulation of refrigerant; steaming is provided by an electric steam boiler, which in turn provides water from an insulated water tank; the heat generated when the refrigerant releases heat is recovered through a heat recovery device, which then heats the water in the heat recovery device, and the heated water then heats the water in the insulated water tank; the hot water generated from steaming and cooling at room temperature absorbs heat through a heat exchanger and heats the water required for buffer heating.

[0029] The present invention has the following beneficial effects: The present invention can effectively recover the heat released by the refrigerant and use it in the electric steam boiler, which can generate steam with a small amount of electricity consumption and make full use of the heat released by the refrigerant; In the process of cooking and cooling, the present invention exchanges heat between the discharged hot water and fresh water through a heat exchanger, recovers the heat in the hot water, raises the temperature of the fresh water, and uses it to preheat the corn in the buffer heating section, so as to reduce the heat required to heat up the corn during cooking, and achieve a more environmentally friendly and energy-saving effect. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 A schematic diagram of a cooling tower and heat recovery device;

[0032] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0033] Figure 4 A diagram showing the ventilation opening when it is open;

[0034] Figure 5 This is a top view of the ventilation opening;

[0035] Figure 6 This is a schematic diagram of the first guide channel;

[0036] Figure 7 This is a schematic diagram of the second guide channel;

[0037] Figure 8 This is a schematic diagram showing the connection relationship of the insulated water tank. Detailed Implementation

[0038] The following will refer to the appendices in the embodiments of the present invention. Figures 1-8 The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0039] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 invention.

[0040] like Figure 1 An agricultural product processing production line with an energy-saving system includes a pretreatment section, a steaming section, and a quick-freezing section through which the raw materials pass in sequence;

[0041] The quick-freezing section uses a refrigerant to form a cooling cycle for quick-freezing. The refrigerant is connected to a cooling tower and cools down and releases heat in the cooling tower. The heat generated is recovered through a heat recovery device, thereby heating the water in the heat recovery device. The heat recovery device is connected to an insulated water tank, and the water heated in the heat recovery device enters the insulated water tank.

[0042] The insulated water tank is connected to the liquid inlet of the electric steam boiler, and the steam outlet of the electric steam boiler is connected to the steaming section.

[0043] In this invention, agricultural products can include corn, camellia oleifera fruit, vegetables, fruits, etc. The production line of this invention is a quick-freezing, packaging, and warehousing line for these agricultural products. This invention takes corn as an example. (Husk-covered corn)

[0044] In this invention, agricultural products can include corn, camellia oleifera fruit, vegetables, fruits, etc., and the production line of this invention is a quick-freezing, packaging, and warehousing line for these agricultural products. This invention takes corn as an example. Hulled corn undergoes a series of processes: hulling, washing, buffer heating, steaming, room temperature water cooling, air drying and draining, quick-freezing, packaging, and warehousing. Corn between adjacent processes can be transferred manually or automatically via conveyor belts, feeders, etc. The pre-treatment section is for pre-processing the hulled corn, such as washing and hulling. The steam source for the steaming section is an electric steam boiler, and the water source for the steaming section is an insulated water tank.

[0045] The steaming section can employ devices such as steam chambers, steam rooms, and steam cabinets, equipped with a steam inlet and a pressure relief vent. The steam inlet connects to the exhaust end of the electric steam boiler to introduce steam, and the exhaust is released through the pressure relief vent to stabilize the pressure. The quick-freezing section can employ devices such as quick-freezing machines and quick-freezing cabinets, utilizing a compressor, evaporator, and condenser to achieve the refrigerant refrigeration cycle. The cooling tower serves as the equivalent of this condenser section. The refrigerant releases heat in the cooling tower, generating heat; the inventive concept of this invention is to collect and utilize this heat.

[0046] Specifically, the heat released by the refrigerant is recovered by a heat recovery device, which raises the water temperature. This hot water is then used to heat the water in the insulated water tank, ensuring that the water in the tank is already hot (e.g., around 80°C) before entering the electric steam boiler. This allows the electric steam boiler to generate steam with less electricity consumption, thus achieving energy savings. Compared to existing technologies, this invention effectively recovers the heat released by the refrigerant and utilizes it in the electric steam boiler, generating steam with minimal electricity consumption and fully utilizing the heat released by the refrigerant, achieving a more environmentally friendly and energy-efficient effect.

[0047] Furthermore, a buffer heating section is provided between the pretreatment section and the steaming section, and a room temperature water cooling section is provided between the steaming section and the quick-freezing section;

[0048] The ambient temperature water cooling section cools the raw materials with fresh water, and the drain end of the ambient temperature water cooling section is connected to the heat exchanger, allowing hot water to enter the heat exchanger.

[0049] The drain end of the steaming section is connected to a heat exchanger, allowing hot water to enter the heat exchanger. The output end of the heat exchanger is connected to the buffer heating section, allowing water with residual heat to enter the buffer heating section to provide heat.

[0050] The buffer heating section can use facilities such as buffer machines, buffer bins, and buffer pools, which are equipped with hot water. Hot water is introduced through pipes to provide initial water bath heating for the corn.

[0051] The ambient temperature water cooling section can be a cooling pool, cooling chamber, or similar facility. Fresh external water (such as tap water) is introduced through pipes. The steamed corn is at a high temperature; cooling it in the ambient temperature water cooling section facilitates subsequent quick-freezing. The ambient temperature water cooling section uses fresh water to rinse, spray, and soak the corn, raising the water level to form hot water. This hot water enters a heat exchanger, which transfers its heat to the water in the buffer heating section. After the steam in the steaming section cooks the corn, it produces condensed hot water, which also enters the heat exchanger. Additionally, a debris filter is installed at the inlet of the heat exchanger. This debris filter is existing technology.

[0052] In this invention, there can be one or two heat exchangers. Two heat exchangers can be connected to the steaming section and the ambient temperature water cooling section respectively, or one heat exchanger can be connected to both the steaming section and the ambient temperature water cooling section simultaneously. Heated pipes can be installed inside the heat exchanger, which have four ports: a water inlet, a drain, a fresh water inlet, and a hot water outlet. The water inlet of the heat exchanger connects to the drain of either the ambient temperature water cooling section or the steaming section; the drain discharges wastewater; the fresh water inlet introduces external fresh water (e.g., tap water); and the hot water outlet delivers hot water through pipes to the buffer heating section.

[0053] In the steaming and cooling process, the hot water discharged in this invention exchanges heat with fresh water through a heat exchanger, recovering the heat from the hot water and raising the temperature of the fresh water to, for example, greater than or equal to 40°C, to buffer the preheating of the corn in the heating section. This reduces the heat required to heat the corn during steaming and cooking, thereby achieving the purpose of energy saving.

[0054] Furthermore, the quick-freezing section also includes a drying and draining section at its front end; the pretreatment section includes a shelling section and a washing section arranged sequentially; and a packaging section and a warehousing section are also located at the rear end of the quick-freezing section. The drying and draining section can use equipment such as a dryer or air dryer to dry the corn for quick-freezing. The shelling section can use a shelling machine or manual shelling. The washing section can use a washing machine, spray washing, or manual washing. The packaging section can use a packaging machine or manual packaging, and the warehousing section can use a conveyor or manual transfer.

[0055] like Figure 2 The cooling tower includes a tower body 101, a coil 102, a motor 106, a fan blade 107, a switching mechanism 108, and a connecting mechanism 109.

[0056] The coil 102 is installed inside the tower body 101. The two ends of the coil 102 are respectively connected to the refrigerant input pipe 103 and the refrigerant output pipe 103. The refrigerant input and refrigerant output pipes are connected to the compressor in the quick-freezing section.

[0057] The tower body 101 is provided with a ventilation opening at the top, and the fan blade 107 is provided inside the ventilation opening. The fan blade 107 is connected to the output end of the motor 106 through the main shaft 110. The main shaft 110 is connected to the switching mechanism 108 through the connecting mechanism 109.

[0058] The switching mechanism 108 is located below the fan blade 107. The switching mechanism 108 is provided with ventilation holes. When the main shaft 110 rotates, the switching mechanism 108 opens the ventilation holes. When the main shaft 110 stops, the switching mechanism 108 closes the ventilation holes.

[0059] In this invention, the switching mechanism 108 functions to temporarily open or close the ventilation opening, thereby opening or closing the ventilation port. It should be noted that due to factors such as material transport time differences, product production cycles, and refrigeration energy consumption ratios, the compressor in the quick-freezing section does not operate continuously but intermittently or periodically. Therefore, the purpose of this invention is to close the switching mechanism 108 when the compressor stops, preventing heat loss due to hot air leakage. Alternatively, the switching mechanism 108 can be closed during production line malfunctions to prevent hot air leakage.

[0060] Specifically, the motor 106 can be mounted above the vent via a bracket, and the main shaft 110 is vertically positioned. When the motor 106 drives the main shaft 110 to rotate, the fan blades 107 draw air downwards, cooling the refrigerant in the coil 102, while simultaneously generating hot air that enters the heat recovery device. When the compressor stops, there is no refrigerant flowing in the coil 102, and the motor 106 can wait a certain period before stopping. This delays the closing of the vent via the switching mechanism 108, allowing for more thorough heat absorption from the refrigerant in the coil 102.

[0061] Furthermore, the switching mechanism 108 includes a rotating shaft 1081, a baffle 1082, and a fixing plate 1083; the fixing plate 1083 is fixedly connected to the inner wall of the vent, covering the vent; the vent hole is disposed on the fixing plate 1083, having a through-hole structure; the rotating shaft 1081 is rotatably disposed inside the vent hole, and the baffle 1082 is fixedly connected to the rotating shaft 1081; when the baffle 1082 is horizontally disposed, it covers the vent hole, and when it is vertically disposed, it opens the vent hole; the end of the rotating shaft 1081 is connected to the connecting mechanism 109.

[0062] The size of the fixed plate 1083 and the internal size of the ventilation opening are adapted. Multiple baffles 1082 and ventilation holes can be arranged side-by-side, with the ventilation holes preferably having a rectangular structure. The rotating shaft 1081 is horizontally positioned in the center of the ventilation hole. Figure 3 , Figure 4 The baffle 1082 can be switched between two states, vertical or horizontal, by rotating the pivot 1081, thus enabling the ventilation opening to be opened or closed.

[0063] Furthermore, the connecting mechanism 109 includes a housing 1091, a spring 1092, a sliding shaft 1093, a limiting plate 1095, and a push rod 1096; the main shaft 110 is circumferentially fixedly connected to a plurality of housings 1091, and the sliding shaft 1093 and the spring 1092 are slidably disposed in the plurality of housings 1091 respectively; the spring 1092 is disposed in the housing 1091 and acts on the sliding shaft 1093; one end of the sliding shaft 1093 away from the main shaft 110 protrudes from the housing 1091 and abuts against one side of the limiting plate 1095, and the other side of the limiting plate 1095 is fixedly connected to the push rod 1096; the push rod 1096 protrudes from the wall of the vent and is connected to the rotating shaft 1081 for pushing the rotating shaft 1081 to rotate.

[0064] Furthermore, the connecting mechanism 109 also includes a connecting frame 1100 and a rack 1101. One end of the push rod 1096 that protrudes from the vent is fixedly connected to the connecting frame 1100. The bottom of the connecting frame 1100 is fixedly connected to the rack 1101. The rack 1101 is horizontally arranged and slidably disposed on the outer wall surface of the tower body 101. The rack 1101 meshes with a gear 1084. One end of the gear 1084 protrudes from the outer wall surface of the tower body 101 and is fixedly connected to the gear 1084.

[0065] Specifically, a limiting block 1094 is fixedly connected to one end of the sliding shaft 1093 facing the main shaft 110. The limiting block 1094 and the sliding shaft 1093 together form a T-shaped shaft structure. A spring 1092 applies elastic force to the limiting block 1094, pressing the sliding shaft 1093 towards the main shaft 110. When the main shaft 110 rotates, the sliding shaft 1093 moves outward, sliding outward and compressing the spring 1092 under centrifugal force. Simultaneously, the sliding shaft 1093 pushes the limiting plate 1095 outward, causing the limiting plate 1095 to drive the push rod 1096 outward, thereby causing the rack 1101 to slide and drive the gears 1084 on multiple rotating shafts 1081 to rotate. As the gears 1084 rotate, the rotating shafts 1081 rotate, thereby causing the baffle 1082 to move to a vertical position, opening the ventilation holes and vents. The baffle 1082 is initially in a horizontal state.

[0066] Spring 1092 serves a reset function. When motor 106 stops, spring 1092 returns to its original deformation, and baffle 1082 returns to a horizontal state.

[0067] In addition, such as Figure 4Two limiting plates 1095 are provided, distributed on both sides of the main shaft 110. Push rods 1096 are fixedly connected to opposite sides of the two limiting plates 1095, and each push rod 1096 is connected to a rack 1101. The two racks 1101 are distributed on both sides of the tower body 101, and are located on the upper and lower sides of the rotating shaft 1081, respectively. Both ends of the rotating shaft 1081 extend out of the tower body 101 and are fixedly connected to gears 1084. The gears 1084 at both ends of the rotating shaft 1081 mesh with the corresponding racks 1101. This design reduces the reciprocating motion of the rack 1101. Through the design of the two limiting plates 1095, their opposing movements drive the two racks 1101 to move in opposite directions. Since the two racks 1101 are positioned above and below the rotating shaft 1081, when they move in opposite directions, they jointly drive the gear 1084 and the rotating shaft 1081 to rotate, maintaining synchronization. The design of the two limiting plates 1095 makes the movement of the racks 1101 more uniform and increases the contact area between the sliding shaft 1093 and the limiting plates 1095. A roller can also be provided at the end of the sliding shaft 1093 that contacts the limiting plate 1095. The two limiting plates 1095 are preferably symmetrical arc-shaped structures, with bent ends to guide the sliding shaft 1093.

[0068] One end of the push rod 1096 protruding from the tower body 101 is slidably disposed within the limiting housing 1097. A return spring 1098 is disposed within the housing 1097. The return spring 1098 compresses the limiting ring 1099, which is fixedly sleeved on the push rod 1096. The function of the return spring 1098 is to reset the push rod 1096 and the limiting plate 1095. When the motor 106 is operating, the return spring 1098 is compressed by the limiting ring 1099; when the motor 106 stops, the return spring 1098 resets the push rod 1096 and the limiting plate 1095.

[0069] like Figure 2 The heat recovery device includes a tank 201, an inclined plate 202, and an exhaust port 203; the lower end of the tower body 101 is connected to a cooling tower through a ventilation pipe 105, and hot air enters the tower body 101 from the ventilation pipe 105 and is discharged through the exhaust port 203 at the top of the tank body 201.

[0070] The inclined plate 202 is fixedly installed inside the tank body 201. Multiple inclined plates are installed in the tank body 201 from top to bottom. The inclined plates 202 are inclined downward and distributed on both sides of the tank body 201 to form a structure that allows the circulating water to flow continuously downward.

[0071] The uppermost inclined plate 202 is provided with a water inlet pipe 205, which passes through the tank body 201 and connects to the insulated water tank; the lowermost inclined plate 202 is provided with a return water pipe 204, which connects to the insulated water tank, and a pump body is provided on the return water pipe 204.

[0072] Multiple inclined plates 202 together form a downward flow channel. Water in the inlet pipe 205 is guided multiple times by the inclined plates 202 and gradually moves downward. Finally, it returns to the insulated water tank through the return pipe 204, forming a heating cycle for the insulated water tank. A fan 203 can be installed on the top of the tank 201 to exhaust exhaust gas. Water in the insulated water tank enters the tank 201 through the inlet pipe 205, where it is heated by hot air from the cooling tower and by the inclined plates 202, causing its temperature to rise rapidly.

[0073] like Figure 5 , Figure 6 The uppermost inclined plate 202 is provided with a first guide channel. The first guide channel has a funnel-shaped structure and includes a concentration part 2021 and a guide part 2023. The width of the concentration part 2021 is smaller than that of the guide part 2023. The water inlet pipe 205 connects to the concentration part 2021. Multiple guide plates are provided in the guide part 2023, and a flow channel is formed between two connected guide plates.

[0074] A second flow guide groove is provided on the inclined plate 202 located below, that is, a second flow guide groove is provided on all inclined plates 202 below the uppermost inclined plate 202, and multiple straight flow channels 2024 are arranged side by side in the second flow guide groove.

[0075] The purpose of the first guide channel is to disperse the water entering through the inlet pipe 205, while the purpose of the second guide channel is to divert the flow and maintain the dispersed state of the water. This makes the water flowing down from the inclined plate 202 form a water curtain, which facilitates the hot air to pass through and heat the water.

[0076] This invention also relates to an agricultural product processing technology with an energy-saving system, comprising:

[0077] The raw materials are sequentially pretreated, buffered and heated, steamed, cooled at room temperature water and quick-frozen;

[0078] Quick-freezing is achieved through the circulation of refrigerant; steaming is provided by an electric steam boiler, which in turn provides water from an insulated water tank; the heat generated when the refrigerant releases heat is recovered through a heat recovery device, which then heats the water in the heat recovery device, and the heated water then heats the water in the insulated water tank; the hot water generated from steaming and cooling at room temperature absorbs heat through a heat exchanger and heats the water required for buffer heating.

[0079] like Figure 8In this invention, the insulated box includes a water tank shell 301, a water tank inlet pipe 302, a diversion pipe 303, an outlet pipe 304, and a heating spiral pipe 305;

[0080] A water tank inlet pipe 302 is fixedly installed on the top of the water tank shell 301. The water tank inlet pipe 302 connects to the water softener unit to introduce fresh water at approximately 25°C. The bottom of the water tank inlet pipe 302 passes through the water tank shell 301 and is fixedly connected to a branch pipe 303 located inside the water tank shell 301. The branch pipe 303 is annular with its axis vertically distributed. Multiple output pipes 304 are fixedly connected to the bottom surface of the branch pipe 303. The multiple output pipes 304 are vertically arranged and distributed circumferentially around the branch pipe 303. Several drain holes are provided on the branch pipe 303 to discharge fresh water into the interior of the water tank shell 301. The heating spiral tube 305 is existing technology, with both ends extending out of the water tank shell 301. The multiple output pipes 304 are distributed within the spiral space of the heating spiral tube 305. The fresh water discharged from the drain holes is located precisely inside the heating spiral tube 305. This design allows the fresh water to quickly contact the heating spiral tube 305, thereby initiating the heating process. Simultaneously, the outward-flowing water mixes with the water inside the tank shell 301, resulting in a more uniform water temperature. This design effectively improves heating efficiency and avoids uneven water temperature, further enhancing energy savings. Furthermore, the return water pipe 204 and the inlet water pipe 205 are fixedly connected and interconnected on the tank shell 301.

[0081] In this invention, the heating element (heating spiral tube 305) and the electric steam boiler in the insulated water tank are preferably powered by solar energy. The implementation method is as follows: the heating element (heating spiral tube 305) and the electric steam boiler in the insulated water tank receive solar energy through solar panels and convert it into electrical energy. The electrical energy can be stored using solar batteries to power the heating element and the electric steam boiler. Under sufficient sunlight, the solar panels can provide enough electricity to reduce dependence on traditional electricity, thereby saving energy costs and protecting the environment, further improving energy efficiency, and enabling more efficient use of renewable energy while reducing dependence on traditional energy sources, thus achieving the goals of energy conservation, emission reduction, and sustainable development.

[0082] Furthermore, to ensure the proper functioning of the heating components and electric steam boiler in the insulated water tank during nighttime or cloudy days when the solar panels cannot provide sufficient power, this implementation also employs a backup power source, such as the traditional power grid. Thus, when the solar panels are unable to provide enough power, the backup power source can promptly supplement the required energy, ensuring the normal operation of the heating components and electric steam boiler in the insulated water tank.

[0083] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, substitutions, or variations made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. An agricultural product processing production line with an energy saving system, characterized in that, The pre-treatment section, the steaming section and the quick-freezing section are sequentially arranged in the raw material processing system; The quick-freezing section adopts a cooling cycle formed by a refrigerant to perform quick-freezing, the refrigerant is communicated with a cooling tower and is cooled and releases heat in the cooling tower, the generated heat is recovered by a heat recovery device to heat water in the heat recovery device; the heat recovery device is communicated with a heat preservation water tank, and the heated water in the heat recovery device enters the heat preservation water tank; The heat preservation water tank is communicated with an inlet of an electric steam boiler, and an outlet of the electric steam boiler is communicated with the steaming section; A buffer warming section is arranged between the pre-treatment section and the steaming section, and a normal-temperature water cooling section is arranged between the steaming section and the quick-freezing section; The normal-temperature water cooling section cools the raw material by using fresh water, and an outlet of the normal-temperature water cooling section is communicated with a heat exchanger to make hot water enter the heat exchanger; An outlet of the steaming section is communicated with the heat exchanger to make hot water enter the heat exchanger, and an output end of the heat exchanger is communicated with the buffer warming section to make water with residual heat enter the buffer warming section to provide heat; A front end of the quick-freezing section is further provided with an air-drying and draining section; the pre-treatment section comprises a shelling section and a cleaning section which are sequentially arranged; and the quick-freezing section is further provided with a packaging section and a storage section which are arranged at a rear end of the quick-freezing section; The cooling tower comprises a tower body (101), a coil pipe (102), a motor (106), a fan blade (107), a switch mechanism (108) and a connecting mechanism (109); The coil pipe (102) is arranged in the tower body (101), and the coil pipe (102) is respectively communicated with a refrigerant input pipe (103) and a refrigerant output pipe (104) at two ends, the refrigerant input pipe (103) and the refrigerant output pipe (104) are communicated with a compressor in the quick-freezing section; A ventilation opening is arranged at a top of the tower body (101), and the fan blade (107) is arranged in the ventilation opening, the fan blade (107) is connected to an output end of the motor (106) through a main shaft (110), and the main shaft (110) is connected to the switch mechanism (108) through the connecting mechanism (109); The switch mechanism (108) is arranged below the fan blade (107), and a ventilation hole is arranged on the switch mechanism (108), when the main shaft (110) rotates, the switch mechanism (108) opens the ventilation hole, and when the main shaft (110) stops, the switch mechanism (108) closes the ventilation hole; The switch mechanism (108) comprises a rotating shaft (1081), a baffle (1082) and a fixed plate (1083); The fixed plate (1083) is fixedly connected to an inner wall surface of the ventilation opening to cover the ventilation opening, the ventilation hole is arranged on the fixed plate (1083), and the ventilation hole is in a layer hole structure; the rotating shaft (1081) is rotatably arranged in the ventilation hole, the baffle (1082) is fixedly connected to the rotating shaft (1081), the baffle (1082) covers the ventilation hole when arranged horizontally and opens the ventilation hole when arranged vertically, and an end of the rotating shaft (1081) is connected to the connecting mechanism (109). The connecting mechanism (109) comprises a shell (1091), a spring (1092), a sliding shaft (1093), a limiting plate (1095) and a push rod (1096); A plurality of the shells (1091) are fixedly connected in the circumferential direction of the main shaft (110), and the sliding shaft (1093) is slidably arranged in each of the shells (1091); the spring (1092) is arranged in the shell (1091) and acts on the sliding shaft (1093); one end of the sliding shaft (1093) away from the main shaft (110) penetrates the shell (1091) and abuts against one side of the limiting plate (1095), and the other side of the limiting plate (1095) is fixedly connected with the push rod (1096); the push rod (1096) penetrates the wall surface of the air vent and is connected with the rotating shaft (1081) for pushing the rotating shaft (1081) to rotate; The connecting mechanism (109) further comprises a connecting frame (1100) and a rack (1101), one end of the push rod (1096) penetrating the air vent is fixedly connected with the connecting frame (1100), the bottom of the connecting frame (1100) is fixedly connected with the rack (1101), the rack (1101) is horizontally arranged and slidably arranged on the outer wall surface of the tower body (101), and the rack (1101) is engaged with a gear (1084); one end of the gear (1084) penetrating the outer wall surface of the tower body (101) is fixedly connected with the gear (1084); The heat recovery device comprises a tank body (201), an inclined plate (202) and an air outlet (203); the lower end of the tower body (101) is communicated with a cooling tower through an air duct (105), hot air enters the tower body (101) from the air duct (105) and is discharged through the air outlet (203) at the top of the tank body (201); The inclined plate (202) is fixedly arranged in the tank body (201), a plurality of the inclined plates (202) are arranged from top to bottom, the inclined plates (202) are arranged in a downward inclination and distributed on both sides of the tank body (201), so as to form a structure for continuously flowing circulating water downward; The uppermost inclined plate (202) is provided with a water inlet pipe (205) penetrating in the tank body (201) and communicated with the heat preservation water tank; the lowermost inclined plate (202) is provided with a water return pipe (204) communicated with the heat preservation water tank, and the water return pipe (204) is provided with a pump body.

2. The agricultural product processing production line with energy saving system according to claim 1, characterized in that, The uppermost inclined plate (202) is provided with a first flow guide groove in a horn structure, comprising a concentrating portion (2021) and a flow guide portion (2023), the width of the concentrating portion (2021) is smaller than that of the flow guide portion (2023), the water inlet pipe (205) is communicated with the concentrating portion (2021), and a plurality of flow guide plates are arranged in the flow guide portion (2023), and flow channels are formed between adjacent two flow guide plates; The inclined plate (202) located below is provided with a second flow guide groove, and a plurality of linear flow channels (2024) are arranged side by side in the second flow guide groove.

3. A kind of agricultural product processing production process with energy-saving system, applied to the agricultural product processing production line with energy-saving system described in any one of claims 1 or 2, characterized in that, The application relates to a method for preparing a food product. The raw material is sequentially subjected to pretreatment, buffer warming, steaming, normal-temperature water cooling and quick freezing. The quick freezing is realized by circulation of refrigerant, the steaming is realized by steam provided by an electric steam boiler, and the electric steam boiler is provided with water source by a heat preservation water tank; heat generated when the refrigerant releases heat is recovered by a heat recovery device, so that the water in the heat recovery device is heated, and the heated water heats the water in the heat preservation water tank; hot water generated by the steaming and the normal-temperature water cooling absorbs heat through a heat exchanger, and the hot water heats the water required for buffer warming.

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