A plate heat exchanger for siphon oil cooling

By using a plate heat exchanger made of SUS316 stainless steel, and utilizing a thin plate design and adjustable interface, the problem of complex installation of existing heat exchangers has been solved, achieving efficient and convenient oil cooling, and reducing maintenance costs and leakage risks.

CN224285576UActive Publication Date: 2026-05-26SHANGHAI ZHAOXUE REFRIGERATION EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ZHAOXUE REFRIGERATION EQUIP CO LTD
Filing Date
2025-07-16
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing heat exchangers are complex to install and require many auxiliary parts, making construction difficult and maintenance work more demanding.

Method used

It adopts a plate heat exchanger for siphon oil cooling, made of SUS316 stainless steel. It has a flexible structure and creates turbulence through thin plate design, resulting in a high heat transfer coefficient. It is suitable for cooling high viscosity oils, and the interface position is adjustable, simplifying the installation process.

Benefits of technology

It improves heat exchange efficiency, reduces installation workload and piping material usage, lowers maintenance costs, avoids leakage risks, is suitable for cooling high-viscosity oils, rapidly reduces oil temperature, and reduces equipment wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of plate heat exchangers, specifically a plate heat exchanger for siphon oil cooling. It includes a heat exchanger body composed of multiple thin plates, with an inlet and an outlet. Multiple support blocks are fixedly connected to both ends of the heat exchanger body. One end of each support block is rotatably connected to a sliding sleeve via a rotating rod, and a knob is fixedly connected to the other end of the rotating rod. Due to its unique structure, this plate heat exchanger allows for changes to the interface positions without altering the overall dimensions, making it more suitable for actual construction conditions and facilitating on-site installation. This reduces installation workload and saves piping materials. The plate heat exchanger's thin-plate design creates turbulence, achieving a heat transfer coefficient 3-5 times that of shell-and-tube heat exchangers. It is particularly suitable for cooling high-viscosity oils, rapidly reducing oil temperature, preventing oil oxidation or equipment wear due to overheating, reducing replacement frequency, and lowering subsequent maintenance costs.
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Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger technology, and in particular to a plate heat exchanger for siphon oil cooling. Background Technology

[0002] Refrigeration systems are generally divided into thermosiphon oil cooling and water cooling. Water cooling is an energy-saving cooling method, but its disadvantages are that it consumes water resources and the heat exchanger is prone to scaling, which affects heat exchange.

[0003] Currently, thermosiphon oil cooling utilizes the pressure difference created by the density difference between liquids and gases for circulation, eliminating the need for pumps or other transport equipment. Compared to water cooling, thermosiphon oil cooling saves water and avoids scaling within the heat exchanger that could impair heat transfer, thus making it widely used.

[0004] However, existing refrigeration units use shell-and-tube water-cooled heat exchangers or finned air-cooled heat exchangers for oil cooling, which is complex to install and requires many auxiliary parts, making engineering construction difficult and subsequent maintenance work more demanding. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art, such as the complex installation of existing heat exchangers, the large number of auxiliary parts, the difficulty of engineering construction, and the large amount of maintenance work in the later stage, and to propose a plate heat exchanger for siphon oil cooling.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A plate heat exchanger for siphon oil cooling includes a heat exchanger body composed of multiple thin plates. The heat exchanger body has an inlet and an outlet. Multiple support blocks are fixedly connected to both ends of the heat exchanger body. A sliding sleeve is rotatably connected to one end of each support block via a rotating rod. A knob is fixedly connected to one end of the rotating rod. A locking structure corresponding to the knob is rotatably connected to the support block. A sliding rod is slidably sleeved at the end of the sliding sleeve away from the rotating rod. A fastening block is fixedly connected to one end of the sliding rod. The fastening block has a fastening port. A positioning structure is slidably inserted inside the sliding sleeve. Multiple positioning holes corresponding to the positioning structure are equidistantly provided on the sliding rod.

[0008] Preferably, the sheet is made of SUS stainless steel.

[0009] Preferably, the clamping structure includes an arc-shaped clamping rod, which is rotatably connected to the support block via a rotating shaft, and the knob is provided with multiple slots corresponding to the arc-shaped clamping rod.

[0010] Preferably, a torsion spring is sleeved on the rotating shaft, and the two ends of the torsion spring abut against the arc-shaped clamp and the support block, respectively.

[0011] Preferably, the positioning structure includes a positioning rod, with a limiting sleeve fixedly sleeved at one end of the positioning rod near the slide rod, and a support spring sleeved on the positioning rod, with both ends of the support spring abutting against the inner walls of the limiting sleeve and the slide sleeve, respectively.

[0012] Preferably, the inlet and outlet are located on the same side or diagonally opposite each other.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention utilizes SUS316 stainless steel, which offers high heat exchange efficiency and corrosion resistance. Its structure is flexible, simple, and easy to install. As a siphon oil cooling system for internal heat exchange, it eliminates the risk of water ingress or leakage.

[0015] 2. Due to its special structure, the plate heat exchanger of this utility model can change the interface position without changing the overall external dimensions, making it more suitable for actual construction conditions, making on-site installation more convenient, reducing the amount of installation work and saving piping materials.

[0016] 3. The plate heat exchanger of this utility model forms turbulence through thin plate design, and the heat transfer coefficient can reach 3-5 times that of shell and tube type. It is especially suitable for cooling high viscosity oils, quickly reducing oil temperature, avoiding oil oxidation or equipment wear due to overheating, reducing replacement frequency and reducing later maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a plate heat exchanger for siphon oil cooling proposed in this utility model;

[0018] Figure 2 This is a side view of the rotating rod in a plate heat exchanger for siphon oil cooling proposed in this utility model.

[0019] Figure 3 for Figure 1 A schematic diagram of the structure at point A in the diagram.

[0020] In the diagram: 1 Heat exchanger body, 2 Liquid inlet, 3 Liquid outlet, 4 Support block, 5 Rotary rod, 6 Sliding sleeve, 7 Knob, 8 Sliding rod, 9 Fastening block, 10 Arc-shaped locking rod, 11 Rotary shaft, 12 Positioning rod, 13 Limiting sleeve, 14 Support spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-3A plate heat exchanger for siphon oil cooling includes a heat exchanger body 1, which is composed of multiple thin plates made of SUS316 stainless steel. The heat exchanger body 1 is provided with an inlet 2 and an outlet 3, which are arranged on the same side or diagonally, depending on the installation requirements.

[0023] In this embodiment, multiple support blocks 4 are fixedly connected to both ends of the heat exchanger body 1. One end of the support block 4 is rotatably connected to a sliding sleeve 6 via a rotating rod 5 to support the sliding rod 8. One end of the rotating rod 5 is fixedly connected to a knob 7 to drive the sliding sleeve 6 to rotate. A clamping structure corresponding to the knob 7 is rotatably connected to the support block 4 to clamp and fix the knob 7.

[0024] In this embodiment, the clamping structure includes an arc-shaped clamping rod 10 for fixing the knob 7. The arc-shaped clamping rod 10 is rotatably connected to the support block 4 through a rotating shaft 11. The knob 7 is surrounded by multiple slots corresponding to the arc-shaped clamping rod 10. A torsion spring is sleeved on the rotating shaft 11. The two ends of the torsion spring abut against the arc-shaped clamping rod 10 and the support block 4 respectively, providing a certain torsional support for the arc-shaped clamping rod 10.

[0025] In this embodiment, a sliding rod 8 is slidably sleeved at the end of the sliding sleeve 6 away from the rotating rod 5, and a fastening block 9 is fixedly connected to one end of the sliding rod 8. The fastening block 9 is provided with a fastening port to facilitate the fixation of the heat exchanger body 1. A positioning structure is slidably inserted inside the sliding sleeve 6 to fix the position of the sliding rod 8.

[0026] In this embodiment, the slide rod 8 is provided with a plurality of positioning holes at equal intervals corresponding to the positioning structure. The positioning structure includes a positioning rod 12. One end of the positioning rod 12 near the slide rod 8 is fixedly sleeved with a limiting sleeve 13 to prevent the positioning rod 12 from falling out of the slide sleeve 6. A support spring 14 is sleeved on the positioning rod 12. The two ends of the support spring 14 abut against the limiting sleeve 13 and the inner wall of the slide sleeve 6, respectively, to provide a certain elastic support for the positioning rod 12.

[0027] In this embodiment, rotating the knob 7 drives the rotating rod 5 to rotate, which in turn drives the sliding sleeve 6 to rotate, adjusting the angle of the fastening block 9. At the same time, the arc-shaped locking rod 10 can effectively fix the knob 7. The torsion spring can provide a certain torsional support for the arc-shaped locking rod 10. The sliding rod 8 can drive the fastening block 9 to move, adjusting the distance between the fastening block 9 and the heat exchanger body 1. Then, the positioning rod 12 is used to fix the position of the sliding rod 8, while the support spring 14 can provide a certain elastic support for the positioning rod 12.

[0028] In this embodiment, the use of SUS316 stainless steel material solves the problem of high heat exchange efficiency and corrosion resistance. Its structure is flexible, simple and easy to install. As a siphon oil cooling system for internal heat exchange, there is no risk of water ingress or leakage.

[0029] In this embodiment, due to the special structure of the plate heat exchanger, the interface position can be changed without changing the overall external dimensions, making it more suitable for actual construction conditions, making on-site installation more convenient, reducing installation workload and saving piping materials.

[0030] In this embodiment, the plate heat exchanger creates turbulence through a thin plate design, and the heat transfer coefficient can reach 3-5 times that of the shell and tube type. It is especially suitable for cooling high-viscosity oils, quickly reducing oil temperature, avoiding oil oxidation or equipment wear due to overheating, reducing replacement frequency, and reducing later maintenance costs.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plate heat exchanger for siphon oil cooling, comprising a heat exchanger body (1), characterised in that: The heat exchanger body (1) is composed of multiple thin plates. The heat exchanger body (1) is provided with an inlet (2) and an outlet (3). Multiple support blocks (4) are fixedly connected to both ends of the heat exchanger body (1). A sliding sleeve (6) is rotatably connected to one end of the support block (4) through a rotating rod (5). A knob (7) is fixedly connected to one end of the rotating rod (5). A clamping structure corresponding to the knob (7) is rotatably connected to the support block (4). A sliding rod (8) is slidably sleeved at the end of the sliding sleeve (6) away from the rotating rod (5). A fastening block (9) is fixedly connected to one end of the sliding rod (8). A fastening port is provided on the fastening block (9). A positioning structure is slidably inserted inside the sliding sleeve (6). Multiple positioning holes corresponding to the positioning structure are provided at equal intervals on the sliding rod (8).

2. A plate heat exchanger for siphon oil cooling according to claim 1, characterized in that: The sheet material is SUS316 stainless steel.

3. A plate heat exchanger for siphon oil cooling according to claim 1, characterized in that: The clamping structure includes an arc-shaped clamping rod (10), which is rotatably connected to the support block (4) via a rotating shaft (11). The knob (7) is provided with multiple slots corresponding to the arc-shaped clamping rod (10).

4. A plate heat exchanger for siphon oil cooling according to claim 3, characterized in that: A torsion spring is fitted on the rotating shaft (11), and the two ends of the torsion spring abut against the arc-shaped clamp (10) and the support block (4) respectively.

5. A plate heat exchanger for siphon oil cooling according to claim 1, characterized in that: The positioning structure includes a positioning rod (12), with a limiting sleeve (13) fixedly sleeved at one end of the positioning rod (12) near the slide rod (8), and a support spring (14) sleeved on the positioning rod (12), with the two ends of the support spring (14) abutting against the inner walls of the limiting sleeve (13) and the slide sleeve (6) respectively.

6. A plate heat exchanger for siphon oil cooling according to claim 1, characterized in that: The inlet (2) and outlet (3) are located on the same side or diagonally opposite each other.