Heat recovery device of high-temperature sterilization machine

Abstract

The utility model relates to the field of heat recovery devices, and discloses a heat recovery device of a high-temperature sterilization machine, which comprises the high-temperature sterilization machine, one side of the high-temperature sterilization machine is communicated with a heat recovery box through a conveying pipe, a partition plate is fixedly mounted on the inner wall of the heat recovery box, and a heat exchange pipe is fixedly mounted on one side of the partition plate in the heat recovery box. One end of the heat exchange pipe communicates with one end of the conveying pipe, the other end of the heat exchange pipe and the partition plate are fixedly installed in a penetrating mode, the other end of the heat exchange pipe communicates with one end of a spiral preheating pipe which is fixedly installed in the heat recycling box and located on the other side of the partition plate, and the other end of the spiral preheating pipe communicates with one end of a filtering box. According to the waste water heat recovery device, heat recovery of high-temperature waste water is facilitated, meanwhile, cold water for heat exchange can be preheated, and therefore the efficiency of the heat exchange process is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat recovery devices, specifically a heat recovery device for a high-temperature sterilization machine. Background Technology

[0002] During the food production and processing, raw materials and packaging materials need to be disinfected. The disinfection process in the food industry generally uses hot water. In the existing disinfection process, the used hot water is directly discharged after a period of disinfection, resulting in a large amount of heat loss, which does not comply with the national advocacy of energy conservation and environmental protection.

[0003] For example, utility model publication CN221036906U discloses a heat recovery device for a high-temperature sterilizer, including a high-temperature sterilizer and a heat recovery box. A conveying pipe is fixedly connected between the high-temperature sterilizer and the heat recovery box. A heat exchange pipe is fixedly connected inside the heat recovery box, and the heat exchange pipe is placed in an S-shape. A partition is fixedly connected horizontally in the middle of the heat recovery box. One end of the heat exchange pipe is fixedly connected to the conveying pipe, and the other end of the heat exchange pipe passes through the partition. A heat dissipation device is sleeved on the surface of the heat exchange pipe, and there are multiple sets of heat dissipation devices. A support plate is fixedly connected to one end of the heat recovery box, and a cooler is fixedly connected to the upper part of the support plate. A cooling pipe is fixedly connected to one end of the cooler, and the cooling pipe is wound around the heat exchange pipe. A filter structure is connected to one end of the heat exchange pipe, and a flow-blocking structure is fixedly connected inside the heat exchange pipe. The advantages of this utility model compared with the existing technology are: it can not only accelerate the heat exchange speed and ensure sufficient heat exchange time between hot and cold water, but also facilitate the cleaning of the filter screen.

[0004] The aforementioned utility model device recovers heat from the high-temperature wastewater in the sterilizer by setting up heat exchange tubes. However, the wastewater after heat recovery is cooled by a refrigerator and cooling pipes before it can be discharged. This heat is wasted and not reused. At the same time, the cooling process also consumes energy. Utility Model Content

[0005] The purpose of this invention is to provide a heat recovery device for a high-temperature sterilization machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat recovery device for a high-temperature sterilizer, comprising a high-temperature sterilizer, a heat recovery box connected to one side of the high-temperature sterilizer via a conveying pipe, and a partition fixedly installed on the inner wall of the heat recovery box. A heat exchange pipe is fixedly installed inside the heat recovery box on one side of the partition, with one end of the heat exchange pipe connected to one end of the conveying pipe, and the other end of the heat exchange pipe being fixedly installed through the partition. The other end of the heat exchange pipe is also connected to one end of a spiral preheating pipe fixedly installed inside the heat recovery box on the other side of the partition, and the other end of the spiral preheating pipe is connected to one end of a filter box. A lift pump is fixedly installed on one side of the heat recovery box, and both ends of the lift pump are connected to both sides of the partition inside the heat recovery box via pipes.

[0007] Preferably, the filter box is vertically connected and fixed with a filter mounting plate.

[0008] Preferably, a cold water inlet is provided on one side of the heat recovery box, and the cold water inlet is connected to the side of the heat recovery box located on the partition near the spiral preheating pipe.

[0009] Preferably, the heat recovery box is located on the side of the partition near the heat exchange tube and is connected to the interior of the high-temperature sterilizer via a reflux tank.

[0010] Preferably, a filter screen is fixedly installed at the center of the filter mounting plate, and a groove adapted to the shape of the bottom of the filter mounting plate is opened at the bottom of the inner wall of the filter box.

[0011] Preferably, one end of the filter box is provided with a drain pipe that communicates with the inside of the filter box.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] This invention introduces cold water into the heat recovery tank via a cold water inlet on one side, located on the side of the partition. The cold water, lifted by a booster pump, is sent from the side of the partition near the spiral preheating pipe to the side near the heat exchange pipe. High-temperature wastewater from the high-temperature sterilizer enters the heat recovery tank through a delivery pipe, where it exchanges heat with the cold water inside the tank. The wastewater, after heat exchange, enters the spiral preheating pipe on the other side of the partition and further exchanges heat with the cold water entering through the cold water inlet. This process cools the wastewater in the spiral preheating pipe, saving on the required cooling source, and preheats the cold water entering through the cold water inlet. The spiral preheating pipe ensures sufficient contact between the cold water and wastewater, improving the preheating effect. This results in better heat exchange for the water pumped to the side of the partition near the heat exchange pipe, fully recovering the heat from the high-temperature hot water. The cooled wastewater then enters the filter tank, is filtered by a filter screen located at the center of the filter mounting plate, and is discharged through a drain pipe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. High-temperature sterilizer; 2. Heat recovery box; 3. Conveying pipe; 4. Baffle plate; 5. Heat exchange pipe; 6. Spiral preheating pipe; 7. Lift pump; 8. Filter box; 9. Filter mounting plate; 10. Filter screen; 11. Drain pipe. Detailed Implementation

[0016] 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.

[0017] Example 1

[0018] Please see Figure 1 The figure shows a heat recovery device for a high-temperature sterilizer, including a high-temperature sterilizer 1. A heat recovery box 2 is connected to one side of the high-temperature sterilizer 1 via a conveying pipe 3. A partition 4 is fixedly installed on the inner wall of the heat recovery box 2. A heat exchange pipe 5 is fixedly installed inside the heat recovery box 2 on one side of the partition 4. One end of the heat exchange pipe 5 is connected to one end of the conveying pipe 3, and the other end of the heat exchange pipe 5 is fixedly installed through the partition 4. The other end of the heat exchange pipe 5 is connected to one end of a spiral preheating pipe 6 fixedly installed inside the heat recovery box 2 on the other side of the partition 4. The other end of the spiral preheating pipe 6 is connected to one end of a filter box 8. A lift pump 7 is fixedly installed on one side of the heat recovery box 2. The two ends of the lift pump 7 are connected to both sides of the partition 4 inside the heat recovery box 2 via pipes.

[0019] In this embodiment, a filter mounting plate 9 is inserted and fixed in the vertical direction in the filter box 8. A cold water inlet is provided on one side of the heat recovery box 2, and the cold water inlet is connected to the side of the heat recovery box 2 located on the partition 4 near the spiral preheating pipe 6. The side of the heat recovery box 2 located on the partition 4 near the heat exchange pipe 5 is connected to the inside of the high-temperature sterilizer 1 through the reflux tank. A filter screen 10 is fixedly installed at the center of the filter mounting plate 9, and a slot adapted to the shape of the bottom of the filter mounting plate 9 is opened at the bottom of the inner wall of the filter box 8. A drain pipe 11 connected to the inside of the filter box 8 is provided at one end of the filter box 8.

[0020] Furthermore, cold water is introduced into the heat recovery tank 2 via the cold water inlet on one side of the heat recovery tank 2, located on the side of the partition 4. The cold water, lifted by the booster pump 7, is sent from the side of the partition 4 near the spiral preheating pipe 6 to the side near the heat exchange pipe 5. The high-temperature wastewater in the high-temperature sterilizer 1 enters the heat exchange pipe 5 inside the heat recovery tank 2 through the conveying pipe 3 to exchange heat with the cold water in the heat recovery tank 2. After heat exchange, the wastewater enters the spiral preheating pipe 6 on the other side of the partition 4 to further exchange heat with the cold water entering through the cold water inlet. This process, on the one hand, preheats the spiral pipe through the cold water. The wastewater in pipe 6 is cooled to save the cold source required for cooling. At the same time, the wastewater after heat exchange through heat exchange pipe 5 preheats the cold water entering through the cold water inlet. The spiral preheating pipe 6 ensures full contact between the cold water and the wastewater, improving the preheating effect. This allows the water pumped by the lift pump 7 to the side of the partition 4 near the heat exchange pipe 5 to have a better heat exchange effect, fully realizing the heat recovery process of the high-temperature hot water. The cooled wastewater enters the filter box 8 and is filtered by the filter screen 10 set at the center of the filter mounting plate 9 before being discharged through the drain pipe 11.

[0021] The working principle of this utility model is as follows: Cold water is input into the heat recovery tank 2 through the cold water inlet on one side of the heat recovery tank 2, located on the side of the partition 4. The cold water is then pumped by the lift pump 7 from the side of the partition 4 near the spiral preheating pipe 6 to the side near the heat exchange pipe 5. The high-temperature wastewater in the high-temperature sterilizer 1 enters the heat exchange pipe 5 inside the heat recovery tank 2 through the conveying pipe 3 to exchange heat with the cold water in the heat recovery tank 2. After heat exchange, the wastewater enters the spiral preheating pipe 6 on the other side of the partition 4 to further exchange heat with the cold water entering through the cold water inlet. On one hand, the cold water... The wastewater in the spiral preheating tube 6 is cooled, saving the cold source required for cooling. At the same time, the wastewater after heat exchange through the heat exchange tube 5 preheats the cold water entering from the cold water inlet. The spiral preheating tube 6 ensures full contact between the cold water and the wastewater, improving the preheating effect. This allows the water pumped by the lift pump 7 to the side of the partition 4 near the heat exchange tube 5 to have a better heat exchange effect, fully realizing the heat recovery process of the high-temperature hot water. The cooled wastewater enters the filter box 8 and is filtered by the filter screen 10 set at the center of the filter mounting plate 9 before being discharged through the drain pipe 11.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat recovery device for a high-temperature sterilizer, comprising a high-temperature sterilizer (1), characterized in that: The high-temperature sterilizer (1) is connected to a heat recovery box (2) via a conveying pipe (3) on one side. A partition (4) is fixedly installed on the inner wall of the heat recovery box (2). A heat exchange pipe (5) is fixedly installed inside the heat recovery box (2) on one side of the partition (4). One end of the heat exchange pipe (5) is connected to one end of the conveying pipe (3). The other end of the heat exchange pipe (5) is fixedly installed through the partition (4). The other end of the heat exchange pipe (5) is connected to one end of a spiral preheating pipe (6) fixedly installed inside the heat recovery box (2) on the other side of the partition (4). The other end of the spiral preheating pipe (6) is connected to one end of a filter box (8). A lift pump (7) is fixedly installed on one side of the heat recovery box (2). Both ends of the lift pump (7) are connected to both sides of the partition (4) inside the heat recovery box (2) via pipes.

2. The heat recovery device for a high-temperature sterilizer according to claim 1, characterized in that: The filter box (8) is vertically connected and fixed with a filter mounting plate (9).

3. The heat recovery device for a high-temperature sterilizer according to claim 2, characterized in that: The heat recovery box (2) is provided with a cold water inlet on one side, and the cold water inlet is connected to the side of the heat recovery box (2) located on the partition (4) near the spiral preheating pipe (6).

4. The heat recovery device for a high-temperature sterilizer according to claim 3, characterized in that: The heat recovery box (2) is located on the side of the partition (4) near the heat exchange tube (5) and is connected to the high-temperature sterilizer (1) through the reflux tank.

5. The heat recovery device for a high-temperature sterilizer according to claim 4, characterized in that: A filter screen (10) is fixedly installed at the center of the filter mounting plate (9), and a slot that matches the shape of the bottom of the filter mounting plate (9) is opened at the bottom of the inner wall of the filter box (8).

6. The heat recovery device for a high-temperature sterilization machine according to claim 5, characterized in that: One end of the filter box (8) is provided with a drain pipe (11) that communicates with the inside of the filter box (8).

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