Soybean protein isolate liquid preheating device

Abstract

The utility model relates to soybean deep processing equipment technical field discloses a soybean protein isolate liquid preheating device, including flash module, preheating jar and storage box, one side of flash module is fixedly installed with first transfusion pump, and first transfusion pump and preheating jar fixed communication, one side of storage box is fixedly installed with second transfusion pump, and the output of second transfusion pump and filter assembly fixed communication, filter assembly fixed communication in the side of preheating jar, temperature control module includes temperature sensor and man -machine interface, and the top of preheating jar is fixedly provided with preheating box, and the top of flash module is fixedly provided with steam pipe, and the other end of steam pipe and the inside fixed connection of preheating box, the utility model discloses the temperature of protein liquid preheating to Celsius degree, and then the protein liquid after preheating is heated to target temperature through steam pipe, and the flow of waste heat and waste gas is adjustable according to the real -time feedback data of temperature sensor, realizes the energy -conserving optimization design of waste heat circulation utilization of waste heat circulation pipeline.

Description

Technical Field

[0001] This utility model relates to the technical field of soybean deep processing equipment, and in particular to a preheating device for soybean protein isolate liquid. Background Technology

[0002] Soy protein isolate is a complete protein food additive produced from low-temperature desolventized soybean meal. Many steps in its production process require specific temperatures, with preheating being a crucial one. Appropriate preheating temperatures facilitate subsequent extraction and reaction processes, improving product quality and production efficiency.

[0003] The commonly used heating method for soy protein isolate liquid is direct heating with steam or electricity. This existing technology has the following significant drawbacks:

[0004] Traditional heating methods rely on external energy, resulting in low energy efficiency and high production costs. In particular, direct electric heating can easily lead to localized overheating or uneven heating, which may damage the activity of soybean protein and affect product quality.

[0005] The high-temperature wastewater and waste gas generated during the deep processing of soybeans have not been effectively recovered, resulting in resource waste and environmental burden. Utility Model Content

[0006] To address the shortcomings of preheating devices in terms of efficient waste heat utilization and precise temperature control, this invention provides a preheating device for soybean protein isolate liquid, which has the advantages of multi-stage heat exchange and reduced energy consumption, and solves the problems of high external energy consumption and protein deterioration caused by local high-temperature heating.

[0007] This utility model provides the following technical solution:

[0008] A preheating device for soybean protein isolate liquid includes a flash evaporation module, a preheating tank, and a storage tank. A first infusion pump is fixedly installed on one side of the flash evaporation module, and the output end of the first infusion pump is fixedly connected to the preheating tank. A second infusion pump is fixedly installed on one side of the storage tank, and the output end of the second infusion pump is fixedly connected to a filter assembly. The filter assembly is fixedly connected to the side of the preheating tank. A temperature control module is fixedly installed in the middle of the preheating tank. The temperature control module includes a temperature sensor and a human-machine interface. A preheating box is fixedly installed on the top of the preheating tank. The temperature sensor is fixedly connected to the side of the preheating box, and the probe of the temperature sensor penetrates into the interior of the preheating box. The interior of the preheating tank is connected to the bottom of the preheating box through a spiral waste heat exchange pipe. A steam pipe is fixedly installed on the top of the flash evaporation module, and the other end of the steam pipe is fixedly connected to the interior of the preheating box.

[0009] Preferably, the filter assembly includes a filter screen, which is fixedly disposed on the upper part of the inner wall of the filter assembly.

[0010] Preferably, the spiral waste heat exchange tube includes a water storage pan and a nozzle. One end of the water storage pan is connected to a pipe at the bottom of the filter assembly. Multiple spirally rising heat exchange tubes are provided on the top of the water storage pan. The heat exchange tubes are made of corrosion-resistant metal. A nozzle is fixedly installed on the top of the heat exchange tube. The nozzle has a through hole at the top and is located at the bottom of the preheating box.

[0011] Preferably, a guide plate is fixedly provided at the other end of the steam pipe. The guide plate is located inside the preheating box and is positioned close to the upper part of the nozzle. An air hole is fixedly provided on the top of the guide plate.

[0012] Preferably, a protein liquid inlet is fixedly provided on the side of the storage box, and a protein liquid outlet is fixedly provided on the side of the preheating box.

[0013] Preferably, the first infusion pump inputs hot water to the lower part of the preheating tank, and the water overflowing from the preheating tank after the liquid level exceeds a preset height enters the interior of the guide plate. The other end of the guide plate is connected to the internal pipe of the flash evaporation module.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, external energy consumption is reduced by recycling hot water. The steam generated by the high-temperature boiling water in the flash evaporation module reheats the preheated protein liquid in the preheating tank, thereby producing soybean protein separation liquid that reaches the target temperature based on the recycling of waste heat.

[0016] 2. In this utility model, by integrating the functions of the filter component, temperature control module and spiral waste heat exchange tube into one unit, the floor space is reduced. Multiple functional modules are set in the preheating tank. The temperature control module can adjust the transport flow rate of the infusion pump to achieve the accuracy of heat supply control after the centralized transformation of the production line. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the filter assembly of this utility model;

[0019] Figure 3 This is a schematic diagram of the spiral waste heat exchange tube of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the guide plate of this utility model;

[0021] Figure 5 This is a side view of the entire utility model.

[0022] In the diagram: 1. Flash evaporation module; 2. Preheating tank; 3. Storage tank; 4. First infusion pump; 5. Second infusion pump; 6. Temperature control module; 61. Temperature sensor; 62. Human-machine interface; 7. Filter assembly; 71. Filter screen; 8. Preheating box; 9. Spiral waste heat exchange tube; 91. Water storage pan; 92. Nozzle; 10. Steam pipe; 11. Guide plate; 12. Vent; 13. Protein solution inlet; 14. Protein solution outlet. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5A preheating device for soybean protein isolate liquid includes a flash evaporation module 1, a preheating tank 2, and a storage tank 3. A first infusion pump 4 is fixedly installed on one side of the flash evaporation module 1. The flash evaporation module 1 is connected to the high-temperature wastewater remaining from the soybean processing steps. The flash evaporation module 1 is still in a heating state, with boiling wastewater and exhaust gas being discharged. The output end of the first infusion pump 4 is fixedly connected to the preheating tank 2. A second infusion pump 5 is fixedly installed on one side of the storage tank 3. The output end of the second infusion pump 5 is fixedly connected to a filter assembly 7. Wastewater from flash evaporation module 1 is transported to the inner wall of preheating tank 2 via a pipeline. Low-temperature soy protein isolate from storage tank 3 flows into a designated spiral pipeline. Filter assembly 7 is fixedly connected to the side of preheating tank 2 to prevent contamination. Temperature control module 6 is fixedly installed in the middle of preheating tank 2. Temperature control module 6 includes temperature sensor 61 and human-machine interface 62. Preheating box 8 is fixedly installed on the top of preheating tank 2. Temperature sensor 61 is fixedly connected to the side of preheating box 8, and the probe of temperature sensor 8 penetrates into preheating box 8. Inside the preheating tank 2, a temperature sensor 61 is installed in the middle of the preheating box 8 to monitor the protein solution temperature in real time. Based on the signal from the temperature sensor 61, the input flow rate of waste heat and the input flow rate of the storage tank 3 are automatically adjusted. The interior of the preheating tank 2 is connected to the bottom of the preheating box 8 through a spiral waste heat exchange pipe 9. The spiral waste heat exchange pipe 9 includes a water storage pan 91 and a nozzle 92. One end of the water storage pan 91 is connected to the pipe at the bottom of the filter assembly 7. The top of the water storage pan 91 is equipped with multiple spirally rising heat exchange pipes. The heat exchange pipes are made of corrosion-resistant metal. The nozzle 92 is fixedly installed on the top of the heat exchange pipe. The nozzle 92 has a through hole at the top and is located at the bottom of the preheating box 8. The protein solution flows through the spiral pipe. Due to the thermal conductivity of the metal, the protein solution absorbs heat during the flow to raise the current temperature. A steam pipe 10 is fixedly installed on the top of the flash evaporation module 1. The steam pipe 10 has a gas valve at the top of the flash evaporation module 1 to control the flow rate. The other end of the steam pipe 10 is fixedly connected to the interior of the preheating box 8.

[0025] A guide plate 11 is fixedly installed at the other end of the steam pipe 10. The guide plate 11 is located inside the preheating box 8 and is positioned close to the upper part of the nozzle 92. An air hole 12 is fixedly installed on the top of the guide plate 11. The guide plate 11 is used to discharge the overflowing low-temperature wastewater and the steam pipe 10 is used to introduce high-temperature steam into the preheating box 8, so as to achieve the effect of wastewater recycling and reuse and secondary heating of the protein liquid that has not reached the target temperature. By using the soybean waste heat injection tank of the flash evaporation module 1, the protein liquid in the storage tank 3 undergoes heat exchange in the spiral tube, preheating the protein liquid temperature from the initial temperature of 20 to 30 degrees Celsius to 40 to 50 degrees Celsius. Then, the waste heat generated when the flash evaporation module 1 boils is used to heat the preheated protein liquid to the target temperature of 50 to 70 degrees Celsius through the steam pipe 10. The flow rate of waste heat and waste gas can be adjusted according to the real-time feedback data of the temperature sensor 61, so as to achieve the energy utilization rate of the waste heat circulation pipeline and complete the energy-saving optimization design effect on the basis of protein liquid preheating.

[0026] The filter assembly 7 includes a filter screen 71, which is fixedly installed on the upper part of the inner wall of the filter assembly 7; impurities are filtered by setting a detachable filter screen with a pore size of 50-100 mesh at the protein liquid inlet of the filter assembly 7.

[0027] A protein liquid inlet 13 is fixedly installed on the side of the storage tank 3, and a protein liquid outlet 14 is fixedly installed on the side of the preheating tank 8. The protein liquid is heated to the target temperature by steam through the guide plate 11. The first infusion pump 4 inputs hot water to the lower part of the preheating tank 2. After the liquid level in the preheating tank 2 exceeds the preset height, the overflowing water enters the interior of the guide plate 11. The other end of the guide plate 11 is connected to the internal pipe of the flash evaporation module 1. Since the density of water decreases as the temperature rises within the temperature range of 4 to 100 degrees Celsius, the water will flow upward. As the wastewater temperature decreases after continuously losing some heat, the injected and discharged wastewater are proportional to each other, thereby maintaining the relative stability of the water temperature.

[0028] Working principle:

[0029] Step 1: The soybean protein liquid in storage tank 3 is introduced into the spiral waste heat exchange tube 9. The high-temperature wastewater in preheating tank 8, which is about 80 to 90 degrees Celsius, uses the thermal conductivity of metal and the flow of water to exchange heat, preheating the protein liquid from the initial temperature to 40 to 50 degrees Celsius.

[0030] Step 2: According to process requirements, steam is injected through steam pipe 10 to reheat the protein solution discharged from the top of the spiral waste heat exchange pipe 9, so that the protein solution is heated to the target temperature, which is 50 to 70 degrees Celsius.

[0031] Step 3: Temperature sensor 61 provides real-time data feedback, and the built-in PLC controller in human-machine interface 62 dynamically adjusts the hot water injection flow and steam injection flow of flash evaporation module 1 to ensure stable outlet temperature.

[0032] Step four: The low-temperature wastewater after waste heat exchange is reused through the waste heat circulation pipeline. Flash evaporation module 1 is the heat source under continuous heating, thereby reducing the overall energy consumption.

Claims

1. A preheating device for soybean protein isolate liquid, comprising a flash evaporation module (1), a preheating tank (2), and a storage tank (3), characterized in that: A first infusion pump (4) is fixedly installed on one side of the flash evaporation module (1), and the output end of the first infusion pump (4) is fixedly connected to the preheating tank (2). A second infusion pump (5) is fixedly installed on one side of the storage tank (3), and the output end of the second infusion pump (5) is fixedly connected to the filter assembly (7). The filter assembly (7) is fixedly connected to the side of the preheating tank (2). A temperature control module (6) is fixedly installed in the middle of the preheating tank (2). The temperature control module (6) includes a temperature sensor (61) and a human-machine interface. The interactive interface (62) has a preheating box (8) fixedly installed on the top of the preheating tank (2). The temperature sensor (61) is fixedly connected to the side of the preheating box (8) and the probe of the temperature sensor (61) penetrates into the interior of the preheating box (8). The interior of the preheating tank (2) is connected to the bottom of the preheating box (8) through a spiral waste heat exchange pipe (9). The top of the flash evaporation module (1) is fixedly installed with a steam pipe (10), and the other end of the steam pipe (10) is fixedly connected to the interior of the preheating box (8).

2. The soybean protein isolate preheating device according to claim 1, characterized in that: The filter assembly (7) includes a filter screen (71), which is fixedly disposed on the upper part of the inner wall of the filter assembly (7).

3. The soybean protein isolate preheating device according to claim 1, characterized in that: The spiral waste heat exchange tube (9) includes a water storage pan (91) and a nozzle (92). One end of the water storage pan (91) is connected to the pipe at the bottom of the filter assembly (7). Multiple spirally rising heat exchange tubes are provided on the top of the water storage pan (91). The heat exchange tubes are made of corrosion-resistant metal. The nozzle (92) is fixedly installed on the top of the heat exchange tube. The nozzle (92) has a through hole at the top and is located at the bottom of the preheating box (8).

4. The soybean protein isolate preheating device according to claim 3, characterized in that: A guide plate (11) is fixedly provided at the other end of the steam pipe (10). The guide plate (11) is located inside the preheating box (8) and is positioned close to the upper part of the nozzle (92). An air hole (12) is fixedly provided on the top of the guide plate (11).

5. The soybean protein isolate preheating device according to claim 1, characterized in that: The storage box (3) is fixedly provided with a protein liquid inlet (13) on its side, and the preheating box (8) is fixedly provided with a protein liquid outlet (14) on its side.

6. The soybean protein isolate preheating device according to claim 4, characterized in that: The first infusion pump (4) inputs hot water to the lower part of the preheating tank (2). After the liquid level in the preheating tank (2) exceeds the preset height, the overflowing water enters the interior of the guide plate (11). The other end of the guide plate (11) is connected to the internal pipe of the flash evaporation module (1).

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