Sanitary double-tube-plate heat exchanger

Abstract

The utility model discloses a hygienic grade double tube sheet heat exchanger relates to double tube sheet heat exchanger technical field, including main casing and outer protective casing, main casing upper end right side is provided with the inflow pipe, main casing lower end left side is provided with the outflow pipe, and main casing outer left end is provided with the first tube box, a water inlet is formed outside the first pipe box, a second pipe box is arranged at the right end of the exterior of the main shell, a water outlet is formed outside the second pipe box, water conveying through holes are formed in the two ends of the interior of the main shell, a heat exchange pipe is installed in the main shell, and an outer protection sleeve is additionally arranged outside the heat exchange pipe; a mounting tube plate is additionally arranged outside the first tube box, a threaded mounting groove is formed in the mounting tube plate, and a mounting bolt is connected into the threaded mounting groove. According to the sanitary double-tube-plate heat exchanger, the exterior of the heat exchange tube can be protected, so that cross infection between two fluid media is avoided, and the overall practicability and the use efficiency of the double-tube-plate heat exchanger are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of double tube sheet heat exchangers, specifically a sanitary double tube sheet heat exchanger. Background Technology

[0002] A double tube sheet heat exchanger is a special type of shell-and-tube heat exchange device. Its main characteristic is the presence of two tube sheets at both ends of the heat exchanger. These tube sheets completely isolate the tube-side fluid from the shell-side fluid, preventing mixing of the two media. This design plays a crucial role in preventing cross-contamination and ensuring safe production. During operation, heat flows into multiple heat exchange tubes and comes into full contact with the cold flow within the heat exchanger, resulting in heat exchange and a temperature reduction. To improve the heat exchange efficiency of the fluid, a double tube sheet heat exchanger is needed. However, existing double tube sheet heat exchangers still have the following shortcomings:

[0003] For example, the utility model application with application number CN210165799U discloses a double tube sheet heat exchanger. The adjustment plate of this utility model can slide up and down in the adjustment sleeve, and the adjustment shaft on the adjustment plate can move through the lifting component, so that the adjustment plate can be raised and lowered relative to the adjustment sleeve. Therefore, the height of the heat exchanger shell can be adjusted, which facilitates the connection of the heat exchanger with other equipment. However, similar to the prior art of the above application, when existing double tube sheet heat exchangers are used, most double tube sheet heat exchangers do not have a structure to protect individual heat exchange tubes. As a result, after the heat exchange tubes are damaged after long-term use, cross-contamination between media is likely to occur, which will damage the clean environment of the production system and cause the double tube sheet heat exchanger to become less practical and less efficient.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a sanitary double tube sheet heat exchanger. Utility Model Content

[0005] The purpose of this invention is to provide a sanitary double tube sheet heat exchanger to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sanitary double tube sheet heat exchanger, comprising a main shell and an outer protective sleeve. An inlet pipe is provided on the upper right side of the main shell, and an outlet pipe is provided on the lower left side of the main shell. A first tube box is provided on the left side of the main shell, with a water inlet on the outside of the first tube box. A second tube box is provided on the right side of the main shell, with a water outlet on the outside of the second tube box. Water supply holes are provided at both ends inside the main shell, and heat exchange tubes are installed inside the main shell. An outer protective sleeve is added to the outside of the heat exchange tubes. An mounting tube sheet is added to the outside of the first tube box, and a threaded mounting groove is provided inside the mounting tube sheet, with mounting bolts connected inside the threaded mounting groove. Sealing grooves are provided at both ends inside the main shell, with rubber sealing rings connected inside the sealing grooves.

[0007] Furthermore, the inlet pipe is perpendicular to the main housing and is fixedly connected to the main housing by welding.

[0008] Furthermore, the outer side of the first pipe box is horizontally distributed with the outer side of the main shell, and the inner side of the first pipe box is closely fitted with the outer side of the main shell.

[0009] Furthermore, the outer side of the second pipe box is horizontally distributed with the outer side of the main housing, and the second pipe box is fixedly connected to the main housing by bolts.

[0010] Furthermore, the internal dimensions of the water supply through hole are adapted to the internal dimensions of the heat exchange tube, and the outer side of the water supply through hole is connected to both ends of the heat exchange tube.

[0011] Furthermore, the heat exchange tubes are equidistantly distributed inside the main shell, and the heat exchange tubes are fixedly connected to the main shell by bolts.

[0012] Furthermore, the internal dimensions of the threaded mounting groove are adapted to the external dimensions of the mounting bolt, and the mounting bolt is rotatably connected to the mounting tube plate through the threaded mounting groove.

[0013] Furthermore, the internal dimensions of the sealing groove are adapted to the external dimensions of the rubber sealing ring, and the rubber sealing ring is connected to the main housing through the sealing groove.

[0014] This utility model provides a sanitary double tube sheet heat exchanger, which has the following beneficial effects:

[0015] 1. This utility model, through the setting of an outer protective sleeve, enables the heat exchange tubes to be fixedly installed inside the main shell by fastening bolts when using a sanitary double tube sheet heat exchanger. Both ends of the heat exchange tubes are connected to water inlets inside the main shell, allowing cooling water to be supplied to the first tube box via the inlet. This allows water to be transported inside the heat exchange tubes through the water inlets, facilitating heat exchange. The outer protective sleeve provides protection to the heat exchange tubes, preventing cross-contamination between the cooling water and external media during flow. Simultaneously, the outer protective sleeve has high thermal conductivity, enabling rapid heat dissipation from the heat exchange tubes, preventing any impact on heat exchange efficiency, and further improving the overall practicality and efficiency of the double tube sheet heat exchanger.

[0016] 2. This utility model, through the setting of the rubber sealing ring, enables the installation tube sheet to be fixedly installed on the outside of the first tube box by welding when using the sanitary double tube sheet heat exchanger. The installation bolts are rotated and installed into the inside of the installation tube sheet through the threaded installation groove. After the first tube box is connected to the main shell, the installation tube sheet is fixed to the main shell by the installation bolts. The sealing groove and the rubber sealing ring improve the sealing performance after the first tube box and the main shell are connected, preventing liquid leakage and improving the overall practicality and efficiency of the double tube sheet heat exchanger. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a sanitary double tube sheet heat exchanger according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the outer protective sleeve of a sanitary double tube sheet heat exchanger according to the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the rubber sealing ring of a sanitary double tube sheet heat exchanger according to this utility model.

[0020] In the diagram: 1. Main shell; 2. Inlet pipe; 3. Outlet pipe; 4. First tube box; 5. Water inlet; 6. Second tube box; 7. Water outlet; 8. Water delivery through hole; 9. Heat exchange tube; 10. Outer protective sleeve; 11. Mounting tube sheet; 12. Threaded mounting groove; 13. Mounting bolt; 14. Sealing joint groove; 15. Rubber sealing ring. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 3As shown, a sanitary double tube sheet heat exchanger includes a main shell 1 and an outer protective sleeve 10. An inlet pipe 2 is located on the upper right side of the main shell 1, and an outlet pipe 3 is located on the lower left side of the main shell 1. A first tube box 4 is located on the left side of the main shell 1, with an inlet 5 on its exterior. A second tube box 6 is located on the right side of the main shell 1, with an outlet 7 on its exterior. Water supply holes 8 are opened at both ends inside the main shell 1, and heat exchange tubes 9 are installed inside the main shell 1, with an outer protective sleeve 10 added to the exterior of the heat exchange tubes 9. The inlet pipe 2 is perpendicular to the main shell 1 and is fixedly connected to the main shell 1 by welding. The outer side of the first tube box 4 is horizontally distributed with the outer side of the main shell 1, and the inner side of the first tube box 4 is tightly fitted with the outer side of the main shell 1. The outer side of the second tube box 6 is horizontally distributed with the outer side of the main shell 1 and is fixedly connected to the main shell 1 by bolts. The internal dimensions of the water supply holes 8 are the same as those of the heat exchange tubes 9. The dimensions are compatible, and the outer side of the water supply hole 8 is connected to both ends of the heat exchange tube 9. The heat exchange tube 9 is evenly distributed inside the main shell 1 and is fixedly connected to the main shell 1 by bolts. The heat exchange tube 9 is fixedly installed inside the main shell 1 by tightening bolts, so that both ends of the heat exchange tube 9 are connected to the water supply hole 8 opened inside the main shell 1. The first tube box 4 is fixedly installed on the left side of the outside of the main shell 1 by bolts. Cooling water is supplied to the first tube box 4 through the water inlet 5, so that water can be transported inside the heat exchange tube 9 through the water supply hole 8, thereby enabling heat exchange. The outer protective sleeve 10 added to the outside of the heat exchange tube 9 can protect the heat exchange tube 9 to a certain extent, preventing cross-contamination between the cooling water and the external medium during the flow process. At the same time, the outer protective sleeve 10 has high thermal conductivity, which can quickly dissipate the heat of the heat exchange tube 9, preventing the heat exchange efficiency from being affected, and further improving the overall practicality and efficiency of the double tube sheet heat exchanger.

[0023] like Figures 1 to 3As shown, an installation tube plate 11 is added to the outside of the first tube box 4, and a threaded installation groove 12 is opened inside the installation tube plate 11. An installation bolt 13 is connected inside the threaded installation groove 12. Sealing mating grooves 14 are opened at both ends inside the main housing 1, and rubber sealing rings 15 are connected inside the sealing mating grooves 14. The internal dimensions of the threaded installation groove 12 are adapted to the external dimensions of the installation bolt 13, and the installation bolt 13 is rotatably connected to the installation tube plate 11 through the threaded installation groove 12. The internal dimensions of the sealing mating groove 14 are adapted to the external dimensions of the rubber sealing ring 15, and the rubber sealing ring 15 is connected to the main housing 1 through the sealing mating groove 14. The installation tube plate 11 is fixedly installed by welding. The internal dimensions of the threaded mounting groove 12, which is located outside the first tube box 4 and inside the mounting tube sheet 11, are adapted to the external dimensions of the mounting bolt 13. Thus, the mounting bolt 13 is rotated and installed into the mounting tube sheet 11 through the threaded mounting groove 12. After the first tube box 4 is connected to the main shell 1, the mounting tube sheet 11 is fixedly installed to the main shell 1 through the mounting bolt 13. The internal dimensions of the sealing mating groove 14, which is located at the outer end of the main shell 1, are adapted to the external dimensions of the rubber sealing ring 15. Thus, the sealing mating groove 14, in conjunction with the rubber sealing ring 15, improves the sealing performance after the first tube box 4 and the main shell 1 are connected and installed, avoids liquid leakage, and improves the overall practicality and efficiency of the dual tube sheet heat exchanger.

[0024] In summary, this sanitary dual-tube sheet heat exchanger, during use, firstly, the fluid medium to be heat-treated is supplied to the main shell 1 through the inlet pipe 2 located on the upper right side of the main shell 1, and then discharged from the main shell 1 through the outlet pipe 3. Next, the mounting bolts 13 are rotated and installed into the mounting tube sheet 11 through the threaded mounting groove 12. After the first tube box 4 is connected to the main shell 1, the mounting tube sheet 11 is fixed to the main shell 1 through the mounting bolts 13. The sealing groove 14, in conjunction with the rubber sealing ring 15, improves the sealing performance after the first tube box 4 is connected to the main shell 1, further preventing liquid leakage. Finally, the heat exchange tubes 9 are secured with the fastening bolts. The heat exchange tube 9 is fixedly installed inside the main shell 1, with both ends of the heat exchange tube 9 connected to the water supply holes 8 opened inside the main shell 1. Cooling water is supplied to the first tube box 4 through the water inlet 5, so that water can be transported inside the heat exchange tube 9 through the water supply holes 8, thereby enabling heat exchange. The outer protective sleeve 10 added to the outside of the heat exchange tube 9 can protect the heat exchange tube 9 to a certain extent, preventing cross-contamination between the cooling water and the external medium during the flow process. At the same time, the outer protective sleeve 10 has high thermal conductivity, which can quickly dissipate the heat of the heat exchange tube 9, preventing the heat exchange efficiency from being affected, and further improving the overall practicality and efficiency of the double tube sheet heat exchanger.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A sanitary double tube sheet heat exchanger, comprising a main shell (1) and an outer protective sleeve (10), characterized in that, An inlet pipe (2) is provided on the upper right side of the main housing (1), and an outlet pipe (3) is provided on the lower left side of the main housing (1). A first pipe box (4) is provided on the outer left side of the main housing (1), and an inlet (5) is provided on the outside of the first pipe box (4). A second pipe box (6) is provided on the outer right side of the main housing (1), and an outlet (7) is provided on the outside of the second pipe box (6). Water conveyance holes (8) are opened at both ends inside the main housing (1). 1) A heat exchange tube (9) is installed inside, and an outer protective sleeve (10) is added outside the heat exchange tube (9). An installation tube plate (11) is added outside the first tube box (4), and a threaded installation groove (12) is opened inside the installation tube plate (11), and an installation bolt (13) is connected inside the threaded installation groove (12). A sealing docking groove (14) is opened at both ends inside the main shell (1), and a rubber sealing ring (15) is connected inside the sealing docking groove (14).

2. The sanitary double tube sheet heat exchanger according to claim 1, characterized in that, The inlet pipe (2) is perpendicular to the main shell (1), and the inlet pipe (2) is fixedly connected to the main shell (1) by welding.

3. A sanitary double tube sheet heat exchanger according to claim 1, characterized in that, The outer side of the first tube box (4) is horizontally distributed with the outer side of the main shell (1), and the inner side of the first tube box (4) is closely attached to the outer side of the main shell (1).

4. A sanitary double tube sheet heat exchanger according to claim 1, characterized in that, The second pipe box (6) is horizontally distributed on the outside of the main shell (1), and the second pipe box (6) and the main shell (1) are fixedly connected by bolts.

5. A sanitary double tube sheet heat exchanger according to claim 1, characterized in that, The internal dimensions of the water supply through hole (8) are adapted to the internal dimensions of the heat exchange tube (9), and the outer side of the water supply through hole (8) is connected to both ends of the heat exchange tube (9).

6. A sanitary double tube sheet heat exchanger according to claim 1, characterized in that, The heat exchange tubes (9) are evenly distributed inside the main shell (1), and the heat exchange tubes (9) are fixedly connected to the main shell (1) by bolts.

7. A sanitary double tube sheet heat exchanger according to claim 1, characterized in that, The internal dimensions of the threaded mounting groove (12) are adapted to the external dimensions of the mounting bolt (13), and the mounting bolt (13) is rotatably connected to the mounting tube plate (11) through the threaded mounting groove (12).

8. A sanitary double tube sheet heat exchanger according to claim 1, characterized in that, The internal dimensions of the sealing groove (14) are adapted to the external dimensions of the rubber sealing ring (15), and the rubber sealing ring (15) is connected to the main housing (1) through the sealing groove (14).

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