A safety tube column heat exchanger for a heat conducting oil mold temperature controller

By designing the end cap fixing mechanism and the pipe connection mechanism, the problems of complex disassembly and assembly and inflexible connection of traditional heat exchangers are solved, realizing rapid disassembly and assembly and sealed connection, thereby improving the maintenance efficiency and safety of heat exchangers.

CN224470869UActive Publication Date: 2026-07-07DONGGUAN HUADEXIN THERMAL IND MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN HUADEXIN THERMAL IND MASCH CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional tubular heat exchangers have complex heat exchange tube assembly and disassembly, and the connection between the hot oil inlet and the hot oil inlet pipe is inflexible, which affects the stability of equipment operation and maintenance costs.

Method used

It adopts an end cap fixing mechanism and a pipe connection mechanism, which respectively connect the flange and bolts and the plug and slot to achieve quick disassembly and sealing connection.

Benefits of technology

It improves the maintenance efficiency and safety of heat exchangers, reduces maintenance costs, and ensures long-term stable operation and sealing performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN224470869U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of safety pipe columnar heat exchangers for heat conduction oil mould temperature controller belong to heat exchanger technical field, including heat exchange pipe body, one end of the heat exchange pipe body is provided with end cover one, the other end of heat exchange pipe body is provided with end cover two, the inside of heat exchange pipe body is provided with cooling pipe, the one end of cooling pipe is provided with cooling water inlet pipe, the utility model is provided with end cover fixed mechanism, the quick disassembly and stable connection between heat exchange pipe body and end cover two are realized, flange plate one and flange plate two are fixedly connected by bolt, simple structure, easy to install and disassemble, can effectively improve maintenance efficiency, the setting of sealing assembly further ensures the sealing of junction, prevent heat conduction oil and cooling water leakage, improve the safety and reliability of heat exchanger, this design not only reduces maintenance time and cost, also prolongs the service life of heat exchanger, ensures its stable operation under high temperature and high pressure condition.
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Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, specifically relating to a safety tubular heat exchanger for a thermal oil mold temperature controller. Background Technology

[0002] Thermal oil mold temperature controllers play a crucial role in many industrial fields, such as plastic molding, rubber product processing, chemical reactor temperature control, and food processing. By precisely controlling the process temperature, they ensure the stability of the production process and the reliability of product quality. As the core component of the thermal oil mold temperature controller, the performance of the heat exchanger directly affects the operating efficiency and stability of the entire equipment. A high-efficiency heat exchanger can quickly and evenly transfer heat to meet the strict temperature requirements of the process.

[0003] Traditional tubular heat exchangers typically employ a fixed structure, with heat exchange tubes and end caps secured by welding or threaded connections. While this structure ensures a certain level of sealing and stability, it presents several inconveniences in practical use. First, the heat exchange tubes may experience performance degradation due to corrosion and scaling over long-term use, requiring periodic replacement or maintenance. However, the fixed structure of traditional heat exchangers makes the disassembly and assembly of heat exchange tubes complex and time-consuming, requiring specialized technicians and complex tools, increasing maintenance costs and downtime. Second, the connection between the hot oil inlet and the hot oil inlet pipe in traditional heat exchangers is not flexible enough, the installation process is cumbersome, and problems such as loose connections and poor sealing can easily occur, affecting the normal operation of the heat exchanger. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a safe tubular heat exchanger for a thermal oil mold temperature controller, featuring convenient disassembly and assembly of the heat exchange tubes and easy connection between the hot oil inlet and the hot oil inlet pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety tubular heat exchanger for a thermal oil mold temperature controller, comprising a heat exchange tube body, an end cap one at one end of the heat exchange tube body, an end cap two at the other end of the heat exchange tube body, a cooling tube inside the heat exchange tube body, a cooling water inlet pipe at one end of the cooling tube, a cooling water outlet pipe at the other end of the cooling tube, a hot oil inlet pipe at the lower side of the heat exchange tube body, a hot oil outlet pipe at the upper side of the heat exchange tube body, a hot oil inlet pipe at the lower end of the hot oil inlet pipe, a solenoid valve at the lower end of the hot oil inlet pipe, the hot oil inlet pipe and the hot oil outlet pipe being fixedly connected by a pipe connection mechanism, and the heat exchange tube body and the end cap two being fixedly connected by an end cap fixing mechanism.

[0006] Preferably, the end cover fixing mechanism includes flange one, flange two, bolts and sealing components. Flange two is provided on one end surface of the heat exchange tube body, and flange one is provided on one end surface of end cover two. Flange one and flange two are fixedly connected by bolts, and a sealing component is provided at the connection between flange one and flange two.

[0007] Preferably, the sealing assembly includes an annular groove, an arc groove, a sealing ring one, and an arc block. A sealing ring one is provided at the connection between flange one and flange two. An annular groove corresponding to the sealing ring one is opened on the side of flange one and flange two. An arc block is provided on the side of the sealing ring one. An arc groove corresponding to the arc block is opened on the side of the annular groove.

[0008] Preferably, the sealing assembly includes a positioning hole and a positioning rod, with the positioning rod disposed inside the arc-shaped groove and a positioning hole corresponding to the positioning rod being opened on the side of the arc-shaped block.

[0009] Preferably, the pipe connection mechanism includes a connecting seat, a slot, a second sealing ring, a fixing component, a fixing hole, a plug, a limiting plate, and a sealing groove. A limiting plate is provided at the lower end of the hot oil inlet pipe, and a plug is provided at the lower end of the limiting plate. A fixing hole is provided on the side of the plug. A connecting seat is provided at the upper end of the hot oil inlet pipe, and a slot corresponding to the plug is provided at the upper end of the connecting seat. A fixing component is provided inside the side of the connecting seat, and a second sealing ring is provided at the lower end of the slot. A sealing groove corresponding to the second sealing ring is provided at the lower end of the plug.

[0010] Preferably, the fixing component includes a spring, a pull rod, a pull ring, a circular plate, and a fixing rod. A circular plate is provided inside the side of the connecting seat, a fixing rod is provided at one end of the circular plate, a pull rod is provided at the other end of the circular plate, a pull ring is provided at the other end of the pull rod, and a spring is sleeved on the surface of the pull rod inside the connecting seat.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, by setting an end cap fixing mechanism, realizes quick disassembly and stable connection between the heat exchange tube body and the second end cap. The first flange and the second flange are fixedly connected by bolts. The structure is simple, easy to install and disassemble, and can effectively improve maintenance efficiency. The setting of the sealing component further ensures the sealing of the connection, prevents leakage of heat transfer oil and cooling water, and improves the safety and reliability of the heat exchanger. This design not only reduces maintenance time and cost, but also extends the service life of the heat exchanger and ensures its stable operation under high temperature and high pressure conditions.

[0013] 2. This utility model achieves rapid connection and sealing between the hot oil inlet pipe and the hot oil outlet pipe by setting up a pipe connection mechanism. The matching design of the plug and slot makes the connection process simple and quick. The fixing component can further lock the plug to ensure the stability of the connection. The design of the sealing ring and the sealing groove effectively prevents the leakage of hot oil at the connection point, improving the safety and reliability of the heat exchanger. This design not only improves the flexibility and convenience of pipe connection, but also effectively reduces the difficulty of manual operation during the connection process, reduces maintenance costs, and ensures the sealing performance of the heat exchanger during long-term operation. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a three-dimensional sectional view of the end cap fixing mechanism of this utility model;

[0016] Figure 3 This is a perspective view of the pipe connection mechanism of this utility model;

[0017] Figure 4 This is an enlarged view of the pipe connection mechanism of this utility model;

[0018] Figure 5 This is an enlarged view of the fixing component of this utility model;

[0019] In the diagram: 1. Heat exchanger tube body; 2. End cap one; 3. Hot oil inlet pipe; 4. Hot oil outlet pipe; 5. Pipe connection mechanism; 51. Connecting seat; 52. Slot; 53. Sealing ring two; 54. Fixing assembly; 541. Spring; 542. Pull rod; 543. Pull ring; 544. Circular plate; 545. Fixing rod; 55. Fixing hole; 56. Insert block; 57. Limiting plate; 58. Sealing groove; 6. Cooling pipe; 7. Cooling water inlet pipe; 8. Cooling water outlet pipe; 9. End cap fixing mechanism; 91. Flange one; 92. Flange two; 93. Bolt; 94. Sealing assembly; 941. Annular groove; 942. Arc groove; 943. Sealing ring one; 944. Arc block; 945. Positioning hole; 946. Positioning rod; 10. End cap two; 11. Hot oil outlet pipe. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figure 1-5 This utility model provides the following technical solution: a safety tubular heat exchanger for a thermal oil mold temperature controller, comprising a heat exchange tube body 1, an end cap 2 at one end of the heat exchange tube body 1, an end cap 10 at the other end of the heat exchange tube body 1, a cooling tube 6 inside the heat exchange tube body 1, a cooling water inlet pipe 7 at one end of the cooling tube 6, a cooling water outlet pipe 8 at the other end of the cooling tube 6, a hot oil inlet pipe 3 on the lower side of the heat exchange tube body 1, a hot oil outlet pipe 11 on the upper side of the heat exchange tube body 1, a hot oil inlet pipe 4 at the lower end of the hot oil inlet pipe 3, a solenoid valve at the lower end of the hot oil inlet pipe 4, the hot oil inlet pipe 3 and the hot oil inlet pipe 4 being fixedly connected by a pipe connection mechanism 5, and the heat exchange tube body 1 and the end cap 10 being fixedly connected by an end cap fixing mechanism 9.

[0023] Specifically, the end cap fixing mechanism 9 includes flange 1 91, flange 2 92, bolts 93, and sealing assembly 94. Flange 2 92 is provided on one end surface of the heat exchange tube body 1, and flange 1 91 is provided on one end surface of the end cap 2 10. Flange 1 91 and flange 2 92 are fixedly connected by bolts 93, and sealing assembly 94 is provided at the connection between flange 1 91 and flange 2 92.

[0024] By adopting the above technical solution, the end cover fixing mechanism 9 realizes the quick disassembly and stable connection between the heat exchange tube body 1 and the end cover 10. The flange 91 and flange 92 are fixedly connected by bolts 93. The structure is simple, and the installation and disassembly are convenient, which can effectively improve the maintenance efficiency. At the same time, the setting of the sealing component 94 ensures the sealing of the connection, prevents the leakage of heat transfer oil and cooling water, and improves the safety and reliability of the heat exchanger.

[0025] Specifically, the sealing assembly 94 includes an annular groove 941, an arcuate groove 942, a first sealing ring 943, and an arcuate block 944. The first sealing ring 943 is provided at the connection between flange one 91 and flange two 92. An annular groove 941 corresponding to the first sealing ring 943 is formed on the side of flange one 91 and flange two 92. An arcuate block 944 is provided on the side of the first sealing ring 943, and an arcuate groove 942 corresponding to the arcuate block 944 is formed on the side of the annular groove 941.

[0026] By adopting the above technical solution, the sealing ring 943 can effectively fill the gap between flange 91 and flange 92 to prevent leakage. The design of the arc block 944 and the arc groove 942 further enhances the sealing effect, ensures the stability of the sealing ring 943 at the connection, and avoids sealing failure due to pressure changes or vibration, thereby improving the sealing performance and service life of the heat exchanger.

[0027] Specifically, the sealing assembly 94 includes a positioning hole 945 and a positioning rod 946. The positioning rod 946 is disposed inside the arc-shaped groove 942, and the side of the arc-shaped block 944 has a positioning hole 945 corresponding to the positioning rod 946.

[0028] By adopting the above technical solution, the cooperation between the positioning rod 946 and the positioning hole 945 can ensure the accurate positioning of the arc block 944 during installation, further enhancing the stability and sealing effect of the sealing assembly 94. This design not only improves the installation efficiency of the sealing assembly 94, but also effectively prevents leakage problems caused by positional deviation of the sealing assembly 94 during use, ensuring the long-term stable operation of the heat exchanger.

[0029] In this embodiment, the flange 91 of the end cover 10 is first aligned with the flange 92 of the heat exchange tube body 1. The sealing ring 943 is placed in the annular groove 941, and the arc block 944 is aligned with the arc groove 942. The flange 91 and flange 92 are fixedly connected by bolts 93. At the same time, the positioning rod 946 and positioning hole 945 are used to ensure the stable installation of the arc block 944. This design makes the connection between the heat exchange tube body 1 and the end cover 10 more secure, the sealing performance more reliable, greatly reduces maintenance time and cost, and improves the service life and operating efficiency of the heat exchanger.

[0030] Example 2

[0031] The difference between this embodiment and Embodiment 1 is that the pipe connection mechanism 5 includes a connecting seat 51, a slot 52, a second sealing ring 53, a fixing component 54, a fixing hole 55, a plug 56, a limiting plate 57, and a sealing groove 58. A limiting plate 57 is provided at the lower end of the hot oil inlet pipe 3, and a plug 56 is provided at the lower end of the limiting plate 57. A fixing hole 55 is provided on the side of the plug 56. A connecting seat 51 is provided at the upper end of the hot oil inlet pipe 4, and a slot 52 corresponding to the plug 56 is provided at the upper end of the connecting seat 51. A fixing component 54 is provided inside the side of the connecting seat 51. A second sealing ring 53 is provided at the lower end of the slot 52, and a sealing groove 58 corresponding to the second sealing ring 53 is provided at the lower end of the plug 56.

[0032] By adopting the above technical solution, the pipe connection mechanism 5 realizes the quick connection and sealing between the hot oil inlet pipe 3 and the hot oil inlet pipe 4. The cooperative design of the plug 56 and the slot 52 makes the connection process simple and quick. The fixing component 54 can further lock the plug 56 to ensure the stability of the connection. The design of the sealing ring 53 and the sealing groove 58 effectively prevents the leakage of hot oil at the connection and improves the safety and reliability of the heat exchanger.

[0033] Specifically, the fixing component 54 includes a spring 541, a pull rod 542, a pull ring 543, a circular plate 544, and a fixing rod 545. A circular plate 544 is disposed inside the side of the connecting seat 51. A fixing rod 545 is disposed at one end of the circular plate 544, and a pull rod 542 is disposed at the other end of the circular plate 544. A pull ring 543 is disposed at the other end of the pull rod 542. A spring 541 is fitted inside the connecting seat 51 on the surface of the pull rod 542.

[0034] By adopting the above technical solution, the fixing component 54 can pull the pull rod 542 through the pull ring 543, so that the fixing rod 545 can be removed from the fixing hole 55, thereby realizing the quick disassembly of the plug 56. The design of the spring 541 can automatically push the fixing rod 545 back into the fixing hole 55 when the pull ring 543 is released, ensuring the stability of the connection. This design not only improves the flexibility and convenience of pipe connection, but also effectively reduces the difficulty of manual operation in the connection process and reduces maintenance costs.

[0035] In this embodiment, the insert 56 of the hot oil inlet pipe 3 is aligned with the slot 52 on the connector 51 of the hot oil inlet pipe 4 and inserted, ensuring that the sealing groove 58 of the insert 56 fits tightly with the sealing ring 53. Then, the pull rod 542 is pulled by the pull ring 543 to move the fixing rod 545 out of the connector 51. After the insert 56 is inserted into place, the pull ring 543 is released, and the spring 541 will automatically push the fixing rod 545 into the fixing hole 55 of the insert 56 to complete the connection. This design makes the connection between the hot oil inlet pipe 3 and the hot oil inlet pipe 4 more secure and the sealing performance more reliable. At the same time, the disassembly process is also very convenient, which greatly improves the installation and maintenance efficiency of the heat exchanger.

[0036] The working principle and usage process of this utility model are as follows: When using this utility model, firstly, align the flange 91 of the end cover 10 with the flange 92 of the heat exchanger tube body 1. Place the sealing ring 943 into the annular groove 941, ensuring that the arc-shaped block 944 is aligned with the arc-shaped groove 942. Securely connect the flange 91 and flange 92 using bolts 93. Simultaneously, use the positioning rod 946 and positioning hole 945 to ensure the stable installation of the arc-shaped block 944. This design makes the connection between the heat exchanger tube body 1 and the end cover 10 more robust, improves sealing performance, significantly reduces maintenance time and costs, and increases the service life of the heat exchanger. Operating efficiency: Align the insert 56 of the hot oil inlet pipe 3 with the slot 52 on the connector 51 of the hot oil inlet pipe 4 and insert it, ensuring that the sealing groove 58 of the insert 56 fits tightly with the sealing ring 53. Then, pull the pull rod 542 through the pull ring 543 to move the fixing rod 545 out of the connector 51. After inserting the insert 56 into place, release the pull ring 543. The spring 541 will automatically push the fixing rod 545 into the fixing hole 55 of the insert 56 to complete the connection. This design makes the connection between the hot oil inlet pipe 3 and the hot oil inlet pipe 4 more secure and the sealing performance more reliable. At the same time, the disassembly process is also very convenient, which greatly improves the installation and maintenance efficiency of the heat exchanger.

[0037] 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 safety tubular heat exchanger for a thermal oil mold temperature controller, comprising a heat exchange tube body (1), one end of the heat exchange tube body (1) being provided with an end cap one (2), the other end of the heat exchange tube body (1) being provided with an end cap two (10), a cooling tube (6) being provided inside the heat exchange tube body (1), a cooling water inlet pipe (7) being provided at one end of the cooling tube (6), a cooling water outlet pipe (8) being provided at the other end of the cooling tube (6), a hot oil inlet pipe (3) being provided on the lower side of the heat exchange tube body (1), a hot oil outlet pipe (11) being provided on the upper side of the heat exchange tube body (1), a hot oil inlet pipe (4) being provided at the lower end of the hot oil inlet pipe (3), and a solenoid valve being provided at the lower end of the hot oil inlet pipe (4), characterized in that: The hot oil inlet pipe (3) and the hot oil inlet pipe (4) are fixedly connected by a pipe connection mechanism (5), and the heat exchange tube body (1) and the end cap (10) are fixedly connected by an end cap fixing mechanism (9).

2. A safety tubular heat exchanger for a thermal oil mold temperature controller according to claim 1, characterized in that: The end cap fixing mechanism (9) includes flange one (91), flange two (92), bolts (93) and sealing assembly (94). Flange two (92) is provided on one end surface of the heat exchange tube body (1), and flange one (91) is provided on one end surface of the end cap two (10). Flange one (91) and flange two (92) are fixedly connected by bolts (93). Sealing assembly (94) is provided at the connection between flange one (91) and flange two (92).

3. A safety tubular heat exchanger for a thermal oil mold temperature controller according to claim 2, characterized in that: The sealing assembly (94) includes an annular groove (941), an arc groove (942), a sealing ring (943), and an arc block (944). A sealing ring (943) is provided at the connection between flange one (91) and flange two (92). An annular groove (941) corresponding to the sealing ring (943) is provided on the side of flange one (91) and flange two (92). An arc block (944) is provided on the side of sealing ring one (943). An arc groove (942) corresponding to the arc block (944) is provided on the side of annular groove (941).

4. A safety tubular heat exchanger for a thermal oil mold temperature controller according to claim 3, characterized in that: The sealing assembly (94) includes a positioning hole (945) and a positioning rod (946). The positioning rod (946) is provided inside the arc groove (942), and the side of the arc block (944) is provided with a positioning hole (945) corresponding to the positioning rod (946).

5. A safety tubular heat exchanger for a thermal oil mold temperature controller according to claim 1, characterized in that: The pipe connection mechanism (5) includes a connecting seat (51), a slot (52), a second sealing ring (53), a fixing component (54), a fixing hole (55), a plug (56), a limiting plate (57), and a sealing groove (58). The lower end of the hot oil inlet pipe (3) is provided with a limiting plate (57), and the lower end of the limiting plate (57) is provided with a plug (56). The side of the plug (56) is provided with a fixing hole (55). The upper end of the hot oil inlet pipe (4) is provided with a connecting seat (51), and the upper end of the connecting seat (51) is provided with a slot (52) corresponding to the plug (56). The side of the connecting seat (51) is provided with a fixing component (54), the lower end of the slot (52) is provided with a second sealing ring (53), and the lower end of the plug (56) is provided with a sealing groove (58) corresponding to the second sealing ring (53).

6. A safety tubular heat exchanger for a thermal oil mold temperature controller according to claim 5, characterized in that: The fixing component (54) includes a spring (541), a pull rod (542), a pull ring (543), a circular plate (544), and a fixing rod (545). A circular plate (544) is provided inside the side of the connecting seat (51). A fixing rod (545) is provided at one end of the circular plate (544), and a pull rod (542) is provided at the other end of the circular plate (544). A pull ring (543) is provided at the other end of the pull rod (542). The surface of the pull rod (542) is fitted with a spring (541) inside the connecting seat (51).