A duplex spiral baffle oil cooling device

Abstract

The utility model relates to spiral baffle oil cooling technical field and disclose a kind of duplex spiral baffle oil cooling device, including pipe body and pipe box, bolt connection pipe plate is arranged between pipe body and pipe box, pipe body top and bottom end respectively embed and set up oil inlet pipe and oil outlet pipe, pipe plate is provided with several groups of heat exchange pipes, spiral baffle is sleeved in the outer end of heat exchange pipe, baffle is fixedly connected in the middle part of pipe box, pump body is fixedly connected in the top end of pipe box, and pump body output end connecting pipe extends to the upper end of baffle, pump body output end is fixedly connected with cold circulation conduit, and cold circulation conduit is all wound in the outer wall of oil inlet pipe and extended to pipe body bottom end, the outer wall of oil inlet pipe is sleeved with phase change material storage box, the utility model is wound in the outer wall of oil inlet pipe by cold circulation conduit, cooperate phase change material storage box, can precool oil liquid and reduce thermal stress, avoid pipeline weld cracking due to thermal expansion, guarantee the rigidity and service life of oil inlet pipe.

Description

Technical Field

[0001] This utility model relates to the field of spiral baffle oil cooling technology, specifically a double-type spiral baffle oil cooling device. Background Technology

[0002] A double-helix baffle oil cooling device refers to a cooling device that uses two sets of helical baffles, nested or connected in parallel, to form a double helical flow channel. The oil and coolant flow in opposite directions within the double helical channel. The baffles guide the fluid in a helical motion, enhancing turbulence and extending residence time, achieving efficient heat exchange. It is suitable for industrial oil cooling applications.

[0003] In oil cooling devices, when the oil temperature difference is large, the pipeline will experience thermal expansion. If no compensation structure is installed, the weld at the connection between the inlet pipeline and the shell is prone to cracking due to thermal stress concentration. Existing devices often neglect the problem of thermal expansion caused by temperature differences, leading to equipment damage and affecting the safe operation of the system. To address this, we propose a double-unit spiral baffle oil cooling device. Utility Model Content

[0004] The purpose of this invention is to provide a double-helical baffle oil cooling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-jointed spiral baffle oil cooling device, comprising a tube body and a tube box, wherein a tube plate connected by bolts is provided between the tube body and the tube box, and an oil inlet pipe and an oil outlet pipe are respectively embedded at the top and bottom ends of the tube body, and an inlet liquid pipe and an outlet liquid pipe are respectively embedded at the top and bottom ends of the tube box; The tube sheet is provided with several sets of heat exchange tubes, and each heat exchange tube is fitted with a spiral baffle plate at its outer end. A partition plate is fixedly connected to the middle of the tube box, and a pump body is fixedly connected to the top of the tube box. The output end of the pump body is connected to a connecting pipe that extends to the upper end of the partition plate. A cold circulation conduit is fixedly connected to the output end of the pump body, and the cold circulation conduit is wrapped around the outer wall of the oil inlet pipe and extends to the bottom of the tube body. A phase change material storage box arranged in a spiral shape is fitted to the outer wall of the oil inlet pipe, and a storage pipe is provided at the top of the phase change material storage box.

[0006] Preferably, support plates are fixedly connected to both sides of the bottom end of the tube.

[0007] Preferably, the spiral baffle consists of two components, which are nested together along an axial gap section.

[0008] Preferably, the bottom end of the tube sheet is fixedly connected to a limiting sleeve connected to a cold circulation conduit, and the cold circulation conduit extends through into the outlet pipe. The cold circulation conduit is made of corrosion-resistant, thermally conductive stainless steel and copper.

[0009] Preferably, the cold circulation conduit is located in the gap of the spirally arranged phase change material storage box.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: The double-layered spiral baffle structure guides the oil to flow in a spiral shape, enhancing turbulence and extending residence time, thus significantly improving heat exchange efficiency. The cold circulation conduit, wrapped around the outer wall of the inlet pipe and combined with a phase change material storage box, pre-cools the oil and reduces thermal stress, preventing weld cracking due to thermal expansion and ensuring the rigidity and service life of the inlet pipe. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the cold circulation conduit structure of this utility model; Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0012] In the diagram: 1. Tube body; 11. Tube sheet; 12. Heat exchange tube; 13. Spiral baffle; 14. Support plate; 15. Oil inlet pipe; 16. Oil outlet pipe; 2. Tube box; 21. Baffle; 22. Liquid inlet pipe; 23. Liquid outlet pipe; 3. Pump body; 31. Cold circulation conduit; 32. Limiting sleeve; 33. Phase change material storage box; 34. Storage pipe. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-4 The present invention provides the following technical solution: Example 1: A double-jointed spiral baffle oil cooling device includes a tube body 1 and a tube box 2. A tube plate 11 is bolted between the tube body 1 and the tube box 2. The tube plate 11 is provided with several sets of heat exchange tubes 12. An oil inlet pipe 15 and an oil outlet pipe 16 are respectively embedded at the top and bottom ends of the tube body 1. An inlet pipe 22 and an outlet pipe 23 are respectively embedded at the top and bottom ends of the tube box 2. Support plates 14 are fixedly connected to both sides of the bottom end of the tube body 1.

[0015] In use, the oil first flows in from the oil inlet pipe 15 at the top of the pipe body 1, and after heat exchange with the coolant in the heat exchange pipe 12, it is discharged from the oil outlet pipe 16 at the bottom. The coolant flows in from the liquid inlet pipe 22 at the top of the pipe box 2, and after absorbing the heat of the oil in the heat exchange pipe 12, it flows out from the liquid outlet pipe 23 at the bottom. The support plate 14 supports the pipe body 1 to keep it stable.

[0016] Example 2: The technical solution of this example, which differs from that of Example 1, includes: a spiral baffle 13 is sleeved on the outer end of the heat exchange tube 12; a partition 21 is fixedly connected in the middle of the tube box 2; a pump body 3 is fixedly connected to the top of the tube box 2; the output end of the pump body 3 is connected to the upper end of the partition 21; a cold circulation conduit 31 is fixedly connected to the output end of the pump body 3; the cold circulation conduit 31 is wound around the outer wall of the oil inlet pipe 15 and extends to the bottom end of the tube body 1; a phase change material storage box 33 arranged in a spiral shape is sleeved on the outer wall of the oil inlet pipe 15; a storage tube 34 is provided at the top of the phase change material storage box 33; the spiral baffle 13 is composed of two parts and nested with each other along the axial gap section; a limiting sleeve 32 connected to the cold circulation conduit 31 is fixedly connected to the bottom end of the tube sheet 11; the cold circulation conduit 31 extends through into the liquid outlet pipe 23; the cold circulation conduit 31 is made of corrosion-resistant, thermally conductive stainless steel and copper; and the cold circulation conduit 31 is located in the gap of the spirally arranged phase change material storage box 33.

[0017] In use, when the oil flows into the pipe body 1 through the oil inlet pipe 15, the spiral baffle 13 guides the oil to flow in a spiral shape to enhance heat exchange, and it is discharged from the oil outlet pipe 16. Then, the pump body 3 is started to drive the coolant from the coolant in the pipe box 2 into the cold circulation duct 31. Part of the oil is pre-cooled by winding around the outer wall of the oil inlet pipe 15 through the cold circulation duct 31, and then flows into the outlet pipe 23 for discharge. The phase change material in the phase change material storage box 33 absorbs the heat of the oil inlet pipe 15 quickly, and works with the cold circulation duct 31 to further control the temperature. The two work together to greatly reduce the damage to the oil inlet pipe 15 caused by the thermal stress of the oil inlet pipe 15, and the limiting sleeve 32 fixes the path of the cold circulation duct 31 to ensure heat exchange efficiency.

[0018] 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 double-jointed spiral baffle oil cooling device, comprising a tube body (1) and a tube box (2), wherein a tube plate (11) is bolted between the tube body (1) and the tube box (2), the tube plate (11) is provided with a plurality of heat exchange tubes (12), an oil inlet pipe (15) and an oil outlet pipe (16) are respectively embedded at the top and bottom ends of the tube body (1), and a liquid inlet pipe (22) and a liquid outlet pipe (23) are respectively embedded at the top and bottom ends of the tube box (2); Its features are: The outer ends of the heat exchange tubes (12) are all fitted with spiral baffles (13). A partition (21) is fixedly connected in the middle of the tube box (2). A pump body (3) is fixedly connected at the top of the tube box (2). The output end of the pump body (3) is connected to the upper end of the partition (21). A cold circulation conduit (31) is fixedly connected at the output end of the pump body (3). The cold circulation conduit (31) is wrapped around the outer wall of the oil inlet pipe (15) and extends to the bottom of the tube body (1). A phase change material storage box (33) is fitted on the outer wall of the oil inlet pipe (15) in a spiral shape. A storage tube (34) is provided at the top of the phase change material storage box (33).

2. The double-helical baffle oil cooling device according to claim 1, characterized in that: Support plates (14) are fixedly connected to both sides of the bottom end of the pipe (1).

3. The double-helical baffle oil cooling device according to claim 1, characterized in that: The spiral baffle (13) consists of two components, which are nested together along an axial gap.

4. The double-helical baffle oil cooling device according to claim 1, characterized in that: The bottom end of the tube sheet (11) is fixedly connected to the limiting sleeve (32) connected to the cold circulation conduit (31), and the cold circulation conduit (31) extends through to the outlet pipe (23). The cold circulation conduit (31) is made of corrosion-resistant, thermally conductive stainless steel and copper.

5. The double-helical baffle oil cooling device according to claim 1, characterized in that: The cold circulation conduit (31) is located in the gap of the spirally arranged phase change material storage box (33).

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