An UHT sterilization device

Abstract

The utility model provides a kind of UHT sterilization device, it includes pipe shell, pipe shell has opposite two ends and two ends are connected with pipe box respectively, two pipe boxes are also respectively connected with connecting pipe in the end opposite to pipe shell, still include multiple heat exchange pipes, all heat exchange pipes include heat exchange section and connecting section, middle section in heat exchange section is located in pipe shell and two ends respectively pass through pipe box to pipe box, shell body connected with all connecting sections is also set in pipe box, connecting pipe is communicated with shell body, two pipe boxes are also respectively connected with lead-in pipe and lead-out pipe, and multiple communication holes that communicate each other are also set between pipe box and pipe shell. The utility model solves the problem that the heat exchange pipe part of prior art is located outside the pipe shell, which leads to the problem that the sterilization efficiency cannot be further improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline sterilization equipment technology, and in particular to a UHT sterilization device. Background Technology

[0002] Pipeline sterilization equipment is a commonly used sterilization device for fluid materials (such as juice and milk) in the food industry. It generally consists of a shell and heat exchange tubes installed inside the shell. Multiple heat exchange tubes are installed inside the shell, and high-temperature, high-pressure steam is introduced to both ends of the shell via inlet and outlet pipes. Material flows through the heat exchange tubes, where the steam in the shell exchanges heat with the material, raising its temperature and achieving sterilization. This type of pipeline sterilization equipment is also suitable for ultra-high temperature short-time sterilization (UHT) processes. In existing technology, both ends of the heat exchange tubes typically extend outside the shell and are fixedly connected to connecting pipes. This allows the material introduced through the connecting pipes to be distributed to the individual heat exchange tubes (or the material in the heat exchange tubes to merge into the connecting pipes). The material needs to flow a certain distance through multiple heat exchange tubes outside the shell before entering the shell, which limits the steam sterilization efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a UHT sterilization device that solves the problem that the sterilization efficiency cannot be further improved because the heat exchange tube is located outside the tube shell.

[0004] According to an embodiment, a UHT sterilization device is provided, which includes a tube shell with two opposite ends and tube boxes connected to each end. The ends of the two tube boxes opposite to the tube shell are also connected to connecting pipes. The device also includes multiple heat exchange tubes, each heat exchange tube including a heat exchange section and a connecting section. The middle section of the heat exchange section is located inside the tube shell and both ends pass through the tube boxes into the tube boxes. The tube boxes are also provided with a housing connected to all the connecting sections. The connecting pipes communicate with the housing. The two tube boxes are also connected with an inlet pipe and an outlet pipe, and multiple communicating holes are provided between the tube boxes and the tube shell to communicate with each other. In this solution, tube boxes are installed at both ends of the tube shell, so that the two ends of the heat exchange tube are located in two tube boxes respectively. The shell and connecting pipe are connected in the tube box to introduce (or export) the material. At the same time, steam is directly introduced into the tube box through the inlet pipe and directly exported from the tube box through the outlet pipe. In this way, the steam comes into indirect contact with the shell and the material in the end of the heat exchange tube at the first time, thereby improving the steam heat exchange efficiency and the sterilization efficiency. This solves the problem that the sterilization efficiency cannot be further improved because the heat exchange tube is located outside the tube shell in the existing technology.

[0005] Furthermore, the pipe box includes a first part connected to the pipe shell and a second part connected to the connecting pipe, and the first part and the second part are detachably enclosed together.

[0006] Furthermore, the shell has a cylindrical structure with one end larger than the other end, and the smaller end is fixedly connected to a connecting section. All connecting sections are fixedly connected to the larger end of the shell. The connecting section abuts against the connecting pipe, and a sleeve is also provided outside the two. The sleeve is located outside the second part and abuts against the second part.

[0007] Furthermore, the first part is fixedly connected to a fixing pipe, and one end of the pipe shell is threadedly connected to the fixing pipe.

[0008] Furthermore, the inlet tube is located on the bottom surface of the tube box, and the outlet tube is located on the top surface of the tube box.

[0009] Furthermore, a drain pipe is also connected to the bottom of the pipe box that connects to the outlet pipe.

[0010] Furthermore, a connecting plate is fixedly installed at the larger end of the shell. The connecting section is fixedly connected to the heat exchange section at one end and to the connecting plate at the other end.

[0011] Furthermore, a base plate for providing a connecting hole is provided between the first part and the shell, and a connecting hole is provided at the junction of the base plate and the inner wall of the shell, with the inner walls of the two connected.

[0012] Furthermore, the fixing tube is fixedly connected to the base plate.

[0013] Furthermore, the first part and the second part are respectively fixedly provided with connecting rings, and the two connecting rings are connected by multiple bolts.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By installing tube boxes at both ends of the tube shell and connecting them to the heat exchange tubes, the material can directly exchange heat with the steam as it enters (or exits) the heat exchange tubes through the shell. This improves the steam heat exchange efficiency and further enhances the sterilization efficiency, thus solving the problem that the sterilization efficiency cannot be further improved because the heat exchange tubes are located outside the tube shell in the existing technology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a partially enlarged structural schematic diagram of an embodiment of the present utility model; In the above attached figures: 1. Tube shell 2. First part 3. Second part 4. Connecting ring 5. Bolt 6. Base plate 7. Fixed tube 8. Heat exchange tube 9. Heat exchange section 10. Connecting section 11. Connecting hole 12. Inlet tube 13. Outlet tube 14. Connecting tube 15. Shell 16. Butt joint section 17. Sleeve 18. Connecting plate 19. Drainage pipe 20. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1 , 2 As shown, this embodiment provides a UHT sterilization device, which includes a shell 1. Similar to existing technologies, the shell 1 has two opposing ends. However, in this embodiment, the two ends of the shell 1 are detachably connected to a tube box 2. The tube box 2 specifically includes a first part 3 and a second part 4, which are connected by two connecting rings 5 ​​and multiple bolts 6, facilitating disassembly. Furthermore, the first part 3 includes a base plate 7, on which a fixing pipe 8 is fixedly connected. The ends of the shell 1 are threadedly engaged with the fixing pipe 8. Similar to existing technologies, this embodiment also includes multiple heat exchange tubes 9, but the difference lies in that the heat exchange tubes 9 include heat exchange sections 10 passing through the base plate 7 at both ends and connecting sections 11 fixedly connected to the heat exchange sections 10. Thus, the heat exchange sections 10 and connecting sections 11... All components are located inside the tube box 2. Multiple connecting holes 12 connecting the tube box 2 and the tube shell 1 are also provided on the base plate 7. An inlet pipe 13 or an outlet pipe 14 is fixedly connected to the tube box 2. Connecting pipes 15 are also connected to the second part 4. The connecting pipes 15 and multiple connecting sections 11 are connected via the shell 16. In this way, the material is introduced into the shell 16 through the connecting pipe 15, then diverted into multiple heat exchange tubes 9, and then merged into another shell 16 before being discharged through another connecting pipe 15. During this process, the inlet pipe 13 introduces steam into the tube box 2 to directly exchange heat with the material in the shell 16 and the ends of the heat exchange tubes 9. This improves the steam heat exchange efficiency and further enhances the sterilization efficiency, solving the problem in the prior art where the heat exchange tubes 9 are partially located outside the tube shell 1, preventing further improvement in sterilization efficiency.

[0018] like Figure 1 , 2As shown, in a further embodiment, the shell 16 has a cylindrical structure with one end larger than the other, and the smaller end is fixedly connected to a connecting section 17. All connecting sections 11 are fixedly connected to the larger end of the shell 16. The connecting section 17 abuts against the connecting pipe 15, and a sleeve 18 is fitted over both (the three can be threaded together). The sleeve 18 is located outside the second part 4 and also abuts against the second part 4. This arrangement ensures that the connecting section 17 extends outside the pipe box 2, and the sleeve 18 is fitted over the joint between the connecting section 17 and the connecting pipe 15. The material enters the shell 16 directly through the connecting pipe 15 (and vice versa). The steam introduced into the pipe box 2 through the inlet pipe 13 directly contacts the shell 16, thus contacting the material immediately. In an even further embodiment, a connecting plate 19 is fixedly installed at the larger end of the shell 16, and all connecting sections 11 are fixedly connected to the connecting plate 19. More specifically, the connecting section 11 is larger at one end than the connecting pipe 15. The smaller end of the structure is fixedly connected to the heat exchange section 10, and the larger end is fixedly connected to the connecting plate 19. In this way, the material in the shell 16 flows into each heat exchange section 10 after passing through the connecting section 11. Steam also exchanges heat normally between the shell 16 and the heat exchange tube 9. In particular, steam flows between the tube box 2 and the tube shell 1 through the connecting hole 12 set on the bottom plate 7. More specifically, the bottom plate 7 and the inner wall of the tube shell 1 are also provided with a connecting hole 12 and their inner walls are connected. In this way, some of the water condensed in the tube shell 1 (condensate will be generated after the operation stops) can also go to the tube box 2 normally without stagnation. In a further embodiment, the inlet pipe 13 is located at the bottom of the second part 4 and the outlet pipe 14 is located at the top of the first part 3. Condensate can be discharged in reverse through the inlet pipe 13. A drain pipe 20 is also connected to the bottom of the tube box 2 where the outlet pipe 14 is set, which can be used to discharge the condensate in the tube box 2. The drain pipe can be set on the second part 4.

[0019] Similar to existing technologies, in this solution, high-temperature and high-pressure resistant sealing gaskets can be added between the joints (or connections) of the various components to prevent leakage.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A UHT sterilization device, characterized in that, The device includes a shell with two opposite ends connected to tube boxes. The ends of the two tube boxes opposite to the shell are also connected to connecting pipes. It also includes multiple heat exchange tubes, each of which includes a heat exchange section and a connecting section. The middle section of the heat exchange section is located inside the shell, and both ends pass through the tube boxes into the tube boxes. The tube boxes are also equipped with shells that connect to all the connecting sections. The connecting pipes communicate with the shells. The two tube boxes are also connected to an inlet pipe and an outlet pipe, and multiple connecting holes are provided between the tube boxes and the shell to communicate with each other.

2. The UHT sterilization device as described in claim 1, characterized in that, The pipe box includes a first part connected to the pipe shell and a second part connected to the connecting pipe. The first part and the second part are detachably assembled together.

3. The UHT sterilization device as described in claim 2, characterized in that, The shell has a cylindrical structure with one end larger than the other end, and the smaller end is fixedly connected to a connecting section. All connecting sections are fixedly connected to the larger end of the shell. The connecting section abuts against the connecting pipe, and a sleeve is also provided outside the two. The sleeve is located outside the second part and abuts against the second part.

4. The UHT sterilization device as described in claim 2, characterized in that, The first part is fixedly connected with a fixed pipe, and one end of the pipe shell is threadedly connected to the fixed pipe.

5. The UHT sterilization device as described in claim 1, characterized in that, The inlet tube is located on the bottom surface of the tube box, and the outlet tube is located on the top surface of the tube box.

6. The UHT sterilization device as described in claim 5, characterized in that, A drain pipe is also connected to the bottom of the pipe box that connects to the outlet pipe.

7. The UHT sterilization device as described in claim 3, characterized in that, A connecting plate is fixedly installed at the larger end of the shell. The connecting section is fixedly connected to the heat exchange section at one end and to the connecting plate at the other end.

8. The UHT sterilization device as described in claim 4, characterized in that, A base plate for providing a connecting hole is provided between the first part and the shell. A connecting hole is provided at the junction of the base plate and the inner wall of the shell, and the inner walls of the two are connected.

9. The UHT sterilization device as described in claim 8, characterized in that, The fixed pipe is fixedly connected to the base plate.

10. The UHT sterilization device as described in claim 2, characterized in that, The first and second parts are each fixedly equipped with a connecting ring, and the two connecting rings are connected by multiple bolts.

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