A heat energy recovery device for a spray sterilization kettle

Abstract

The utility model discloses a heat energy recovery device for spraying sterilization kettle belongs to heat energy recycling technical field, including high temperature sterilization kettle and heat energy recovery jar, the right side of heat energy recovery jar's upper portion is provided with pneumatic control valve no.

Description

Technical Field

[0001] This utility model relates to the field of heat energy recovery and utilization technology, and in particular to a heat energy recovery device for a spray sterilization autoclave. Background Technology

[0002] In the food, pharmaceutical, and chemical industries, sterilization is often required after packaging to ensure the safety and stability of products within their shelf life. Spray sterilization autoclaves, as a highly efficient and uniform sterilization device, are widely used in this process. Their working principle is to directly spray high-temperature sterilization media (usually high-temperature water or steam) onto the surface of the product to be sterilized, causing the internal temperature of the product to rise rapidly to the set sterilization temperature and maintain it for a certain period of time, thereby killing any microorganisms that may be present in the product and achieving the purpose of sterilization and preservation. However, existing indirect cooling sterilizers use a large amount of cooling water during cooling. After the cooling water absorbs heat, it still needs to be cooled down by cooling equipment, which results in a heavy workload for the cooling equipment and a complete waste of heat energy. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to provide a heat energy recovery device for a spray sterilization autoclave. The device can indirectly absorb most of the high-temperature heat energy through water during the cooling process of the autoclave and store it, so as to cleanly recover and reuse the heat energy, reduce heat energy waste, and reduce the workload of the cooling equipment.

[0004] Technical solution: A heat energy recovery device for a spray sterilization autoclave, comprising a high-temperature sterilization autoclave and a heat energy recovery tank, wherein a pneumatic control valve is provided on the upper right side of the heat energy recovery tank, a manual valve is provided on the lower right side of the heat energy recovery tank, and a heat energy recovery water pump is provided on the outside of the heat energy recovery tank. A manual valve two is provided between the heat energy recovery water pump and the heat energy recovery tank. A pneumatic control valve two and a pneumatic control valve three are provided on the outside of the heat energy recovery water pump. The heat energy recovery water pump is connected to the high-temperature sterilization vessel through the pneumatic control valve two. A one-way valve is provided on the outside of the pneumatic control valve three. The one-way valve is connected to the high-temperature sterilization vessel. A pneumatic control valve four is provided below the one-way valve. The pneumatic control valve four is connected to the heat energy recovery tank.

[0005] Furthermore, a vent is provided at the top of the heat recovery tank.

[0006] Furthermore, the lower surface of the heat recovery tank is fixedly connected with multiple support legs.

[0007] Furthermore, a thermometer is installed on the left side of the front surface of the heat recovery tank.

[0008] Furthermore, a level gauge is installed on the right side of the front surface of the heat recovery tank.

[0009] Beneficial effects: This utility model stores water that has absorbed heat in a heat recovery tank and drives water circulation with a heat recovery water pump. During the cooling process of the high-temperature sterilization kettle, the circulating water can indirectly absorb and store most of the high-temperature heat energy released by the sterilization kettle. The recovered clean heat energy can be reused for preheating and other processes in subsequent sterilization operations. This avoids the waste caused by the direct discharge of high-temperature heat energy during the cooling process of traditional sterilization kettles, significantly improves energy utilization efficiency, reduces the energy consumption costs required for additional heating by enterprises, and meets the industrial development needs of energy conservation and emission reduction. This invention recycles water to absorb a large amount of waste heat from the sterilization vessel in advance, which can directly reduce the initial temperature of the sterilization vessel's cooling process, reduce the heat load that the cooling equipment needs to handle, and enable the cooling equipment to achieve the expected cooling effect without operating at full load. This not only reduces the energy consumption of the cooling equipment, but also reduces the wear and tear and the probability of failure, effectively extends the service life of the cooling equipment, and reduces the maintenance and replacement costs of the enterprise's equipment. This invention uses multiple pneumatic control valves to precisely control the water flow path. By adjusting these valves, operators can flexibly switch between different water circulation states to meet various needs for heat recovery, storage, and reuse. The operation is simple and efficient. Meanwhile, the manual valves can quickly block the water flow during equipment maintenance to prevent water leakage from affecting the maintenance operation and ensure the safety of the maintenance process. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] In the diagram: 1. High-temperature sterilization autoclave; 2. Heat recovery tank; 3. Pneumatic control valve one; 4. Manual valve one; 5. Heat recovery water pump; 6. Manual valve two; 7. Pneumatic control valve two; 8. Pneumatic control valve three; 9. Check valve; 10. Pneumatic control valve four; 11. Breathing port; 12. Support leg; 13. Thermometer; 14. Level gauge. Detailed Implementation

[0012] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] Example like Figure 1As shown, a heat recovery device for a spray sterilization autoclave is provided, including a high-temperature sterilization autoclave 1 and a heat recovery tank 2. A pneumatic control valve 3 is provided on the upper right side of the heat recovery tank 2, and a manual valve 4 is provided on the lower right side of the heat recovery tank 2. A heat recovery water pump 5 is provided on the outside of the heat recovery tank 2. A manual valve 6 is provided between the heat recovery water pump 5 and the heat recovery tank 2. A pneumatic control valve 7 and a pneumatic control valve 8 are provided on the outside of the heat recovery water pump 5. The heat recovery water pump 5 is connected to the high-temperature sterilization autoclave 1 through the pneumatic control valve 7. A one-way valve 9 is provided on the outside of the pneumatic control valve 8 and is connected to the high-temperature sterilization autoclave 1. A pneumatic control valve 10 is provided below the one-way valve 9 and is connected to the heat recovery tank 2. The high-temperature sterilization autoclave 1, as the core sterilization equipment, generates a medium containing a large amount of residual heat after completing the product sterilization process. The heat recovery tank 2 stores water to absorb this residual heat. The initial collection and storage of heat energy is achieved through heat exchange between the internal water and the residual heat medium. The heat recovery water pump 5 plays a crucial role in circulating the water that absorbs heat energy, providing power for the water flow throughout the device and ensuring the continuous heat absorption and transport process. The device is equipped with four pneumatic control valves (pneumatic control valve 1-3, pneumatic control valve 2-7, pneumatic control valve 3-8, and pneumatic control valve 4-10) for precise control of the water flow path. Pneumatic control valve 1-3 regulates the water flow in and out above the heat recovery tank 2. Pneumatic control valves 2-7 and 3-8 work together to switch the water flow direction between the heat recovery water pump 5 and the high-temperature sterilization autoclave 1. The pneumatic control valve 410 is responsible for controlling the water flow channel from the one-way valve 9 to the heat recovery tank 2. Through the coordinated action of each pneumatic control valve, the water flow path requirements under different working conditions are met. The manual valves 11 and 21 mainly play a role during the maintenance of the device. Manual valve 11 can block the water flow below the right side of the heat recovery tank 2, and manual valve 21 can cut off the water flow between the heat recovery water pump 5 and the heat recovery tank 2, so as to avoid water leakage during maintenance, which would affect the operational safety and maintenance efficiency. The one-way valve 9 is located outside the pneumatic control valve 38, which can force the water flow in the pipeline to flow in only one direction, prevent the water flow from flowing backward, ensure the stable operation of the entire water circulation system, and avoid the heat recovery efficiency reduction or equipment failure caused by water backflow. All components work together to achieve efficient recovery and utilization of the waste heat of the high-temperature sterilization kettle 1.

[0014] like Figure 1 As shown, a vent 11 is provided at the top of the heat recovery tank 2; When the water stored in the heat recovery tank 2 absorbs the residual heat transferred from the high-temperature sterilization vessel 1, its temperature rises. The heated water will generate a small amount of steam, causing the air pressure inside the tank to rise. At this time, the vent 11 can promptly expel the excess gas inside the tank to prevent the pressure inside the tank from being too high and affecting the safe operation of the equipment. When the device stops operating or the water inside the tank cools and contracts, negative pressure is easily formed inside the tank. The vent 11 can then introduce outside air to prevent the negative pressure inside the tank from being too high, which could cause the tank to deform or affect the normal start-up of the subsequent water circulation. At the same time, the vent 11 can also assist in ventilation when the heat recovery tank 2 is being cleaned or maintained to ensure operational safety and further ensure that the heat recovery tank 2 can stably perform its core function of storing heat-absorbing water.

[0015] like Figure 1 As shown, multiple support legs 12 are fixedly connected to the lower surface of the heat recovery tank 2; The multiple support legs 12 provide stable support for the heat recovery tank 2, raising the tank body off the ground to a certain height. This prevents the lower surface of the tank from directly contacting the ground, reducing corrosion or wear on the bottom of the tank caused by ground moisture and debris accumulation, and extending the service life of the tank. At the same time, the support legs 12 provide sufficient maintenance and operation space for the pipelines below the heat recovery tank 2, making it convenient for staff to inspect, disassemble, or replace relevant parts during equipment maintenance without moving the heavy tank.

[0016] like Figure 1 As shown, a thermometer 13 is installed on the left side of the front surface of the heat recovery tank 2; When the residual heat from the high-temperature sterilization autoclave 1 enters the heat recovery tank 2 to exchange heat with the water, the thermometer 13 can quickly monitor the temperature rise of the water after absorbing heat, and determine whether the heat recovery efficiency has reached the expected level. If the water temperature rises slowly, it can be checked in time whether the heat exchange path is unobstructed and whether the circulation rate of the heat recovery water pump 5 is normal. When it is necessary to adjust the water temperature in the tank to match the preheating requirements of subsequent sterilization operations, the thermometer 13 also provides the staff with accurate temperature reference, avoiding the impact of excessively high or low water temperature on subsequent processes. At the same time, if the water temperature in the tank rises abnormally, the thermometer 13 can provide timely feedback to help the staff check for problems such as pipe blockage or valve misoperation, preventing damage to equipment or affecting the stable operation of the heat recovery system due to abnormal water temperature, and further ensuring the efficient and safe operation of the entire heat recovery device.

[0017] like Figure 1 As shown, a level gauge 14 is installed on the right side of the front surface of the heat recovery tank 2; The liquid level gauge 14 can confirm whether the water level in the tank has reached the preset circulation requirements, preventing the heat recovery pump 5 from running dry and being damaged due to low water level, or overflowing due to water expansion caused by high water level. During system operation, the staff can monitor the water level changes in real time through the liquid level gauge 14 and replenish the consumed water in a timely manner to ensure that the heat recovery tank 2 always maintains a sufficient water storage volume to efficiently absorb the waste heat of the high-temperature sterilization vessel 1. At the same time, it prevents the stability of water circulation from being affected by abnormal water level fluctuations, thereby ensuring the heat recovery efficiency. In addition, when the device is under maintenance or cleaning, the liquid level gauge 14 can also help the staff to grasp the drainage progress in the tank, ensuring thorough drainage and providing safety for subsequent operations, further maintaining the stable function of the heat recovery tank 2 in storing heat-absorbing water.

[0018] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heat recovery device for a spray sterilization autoclave, comprising a high-temperature sterilization autoclave (1) and a heat recovery tank (2), characterized in that: A pneumatic control valve (3) is provided on the upper right side of the heat recovery tank (2), a manual valve (4) is provided on the lower right side of the heat recovery tank (2), and a heat recovery water pump (5) is provided on the outside of the heat recovery tank (2). A manual valve 2 (6) is provided between the heat energy recovery water pump (5) and the heat energy recovery tank (2). A pneumatic control valve 2 (7) and a pneumatic control valve 3 (8) are provided on the outside of the heat energy recovery water pump (5). The heat energy recovery water pump (5) is connected to the high-temperature sterilization vessel (1) through the pneumatic control valve 2 (7). A one-way valve (9) is provided on the outside of the pneumatic control valve 3 (8). The one-way valve (9) is connected to the high-temperature sterilization vessel (1). A pneumatic control valve 4 (10) is provided below the one-way valve (9). The pneumatic control valve 4 (10) is connected to the heat energy recovery tank (2).

2. The heat recovery device for a spray sterilization autoclave according to claim 1, characterized in that: The heat recovery tank (2) is provided with a vent (11) at the top.

3. The heat recovery device for a spray sterilization autoclave according to claim 1, characterized in that: The lower surface of the heat recovery tank (2) is fixedly connected with multiple support legs (12).

4. The heat recovery device for a spray sterilization autoclave according to claim 1, characterized in that: A thermometer (13) is provided on the left side of the front surface of the heat recovery tank (2).

5. A heat recovery device for a spray sterilization autoclave according to claim 1, characterized in that: A level gauge (14) is provided on the right side of the front surface of the heat recovery tank (2).

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