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Expansion device for heat exchange tubes and cooling fins

A technology of heat exchange tubes and heat sinks, which is applied in the mechanical field, can solve problems such as poor sealing, poor expansion effect, and unstable pressure, and achieve good expansion effect, stable expansion, and convenient disassembly and assembly.

Inactive Publication Date: 2016-01-20
嘉兴恒日太阳能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the expansion joint device disclosed in this patent can realize the expansion joint of heat exchange tubes and fins to a certain extent, since the expansion joint device uses air pressure to expand heat exchange tubes and fins, it is very easy to Good, resulting in unstable pressure, which makes the expansion effect poor

Method used

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  • Expansion device for heat exchange tubes and cooling fins
  • Expansion device for heat exchange tubes and cooling fins
  • Expansion device for heat exchange tubes and cooling fins

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Such as figure 1 , image 3 , Figure 4As shown, the expansion joint device of the heat exchange tube and the heat sink includes a workbench 14 and an expansion rod 6, and the material of the expansion rod 6 is made of stainless steel; the workbench 14 is provided with a positioning cylinder 8, and the positioning cylinder 8 is fixed on the working One side of the platform 14; one end of the positioning cylinder 8 has an opening, the other end of the positioning cylinder 8 is fixed with a positioning plate 7, and the outer diameter of the expansion rod 6 is smaller than the inner diameter of the heat exchange tube 21, so that the expansion rod 6 can be inserted into the heat exchange tube 21 Expansion rod 6 one ends are fixed with expansion head 19, and expansion rod 6 other ends are connected with a moving mechanism that can drive its axial movement, and the section of expansion head 19 is conical shape, and the material of expansion head 19 adopts stainless steel, ca...

Embodiment 2

[0047] The content in this embodiment two is roughly the same as that in embodiment one, the difference is that the moving mechanism in embodiment one includes motor 1, screw mandrel 3, nut 10, bearing one 11 and connecting plate 5, and motor 1 is fixed On the workbench 14, both ends of the screw rod 3 are fixed on the workbench 14 by means of axial fixing and circumferential rotation, the output shaft of the motor 1 is connected with the screw rod 3 through a transmission structure, and the nut 10 is screwed on the On the screw mandrel 3, the bearing one 11 is set outside the nut 10, and the inner ring of the bearing one 11 is fixed to the nut 10, the connecting plate 5 is fixed on the outer ring of the bearing one 11, the expansion rod 6 is fixed on the connecting plate 5, and the transmission Structure comprises reducer 18, driving gear 15 and driven gear 16, the input end of reducer 18 and the output shaft of motor 1 are connected by coupling 17, and driving gear 15 is fixe...

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Abstract

The invention provides an expansion connection device for heat exchange pipes and heat radiating fins, belongs to the technical field of machinery, and solves the technical problems of bad expansion connection effect and the like caused by the fact that the expansion connection device in the prior art implements expansion connection by using air pressure, so that unstable pressure is likely to occur due to bad sealing. The expansion connection device for the heat exchange pipes and the heat radiating fins comprises a worktable and expansion rods, wherein a positioning barrel is arranged on the worktable; one end of the positioning barrel is provided with an opening; a positioning plate is fixedly arranged on the other end of the positioning barrel; the external diameter of each expansion rod is smaller than the internal diameter of each heat exchange pipe; an expansion head is fixedly arranged on one end of each of the expansion rods; the other end of each of the expansion rods is connected with a moving mechanism capable of driving the expansion rod to axially move; the section of each expansion head is in a circular truncated cone shape; a round through hole is formed in the positioning plate; the aperture of the through hole is smaller than the external diameter of each of the heat exchange pipes, but greater than the external diameter of one end, far away from one expansion rod, of the corresponding expansion head. The expansion connection device has the advantages of rapidly implementing expansion connection on the heat exchange pipes and the heat radiating fins, and being stable in expansion connection quality.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to an expansion joint device, in particular to an expansion joint device for a heat exchange tube and a cooling fin. Background technique [0002] The solar water heater converts sunlight energy into heat energy and heats water from low temperature to high temperature. The heat exchanger is the main part of the solar water heater. The heat exchanger is composed of a heat exchange tube and a heat sink, and the heat exchange tube is in contact with the heat sink The size of the area directly affects the efficiency of the heat exchanger. [0003] After searching, for example, Chinese patent literature discloses a high-pressure gas tube sheet expansion joint method and device [Patent No.: ZL201010522634.5; Authorized Notice No.: CN102059296A]. This high-pressure gas tube-sheet expansion device is equipped with a pressure gauge on the connecting pipeline between the compressor and the v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D53/08B21D39/00
Inventor 徐柏恒
Owner 嘉兴恒日太阳能科技有限公司
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