Heat exchanger bending device

Abstract

The invention discloses a heat exchanger bending device, which comprises a movable platform, a bending roller, a baffle, a top plate and a roller locking clamp, wherein the movable platform is used for placing and supporting a heat exchanger through which fins penetrate and driving the heat exchanger to translate to a bending position; the bending roller is arranged above one end of the movable platform, the tail end of the bending roller is connected with a rotating motor, and the head end of the bending roller is provided with a clamping shaft; the baffle is arranged on one side at the head end of the bending roller and is tangentially connected with the bending roller; the top plate is arranged on the lower part of the baffle and is used for clamping the heat exchanger between the top plate and the baffle when going up and down, so that the heat exchanger rotates along with the bending roller to be bent; and one end of the roller locking clamp is provided with a rotating shaft, and the other end of the roller locking clamp is matched with the clamping shaft at the head end of the bending roller to clamp and lock the bending roller. The device can be used for bending the heat exchanger with an elliptical or approximately elliptical coil pipe effectively, can prevent the fins and the coil pipe from being damaged in a bending process so as to ensure that the fins and the coil pipe can meet design requirements, and can improve production efficiency, guarantee quality and ensure stability of operation as the whole device is subjected to full-automatic control.

Description

technical field [0001] The invention relates to heat exchanger processing equipment, more specifically, to a heat exchanger bending processing device. Background technique [0002] At present, in mechanical compression refrigeration equipment, heat exchange devices such as condensers and evaporators are often used to dissipate heat from the high-temperature and high-pressure refrigerant through the condenser, and then enter the room to expand and absorb heat through the evaporator, thereby achieving the cooling effect . The heat dissipation effect of the heat exchange device will directly affect the refrigeration energy efficiency of the entire refrigeration equipment. [0003] The traditional heat exchange device uses a disc tube (the radial section is circular) and heat dissipation fins (the perforation is also circular) sleeved on the coil tube to exchange the heat of the medium in the tube with the outside air to achieve heat dissipation. The purpose is mainly to dissi...

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Problems solved by technology

[0003] The traditional heat exchange device uses a disc tube (the radial section is circular) and heat dissipation fins (the perforation is also circular) sleeved on the coil tube to exchange the heat of the medium in the tube with the outside air to achieve heat dissipation. The purpose is mainly to dissipate the heat when the heat dissipation fins are blown by the wind. However, due to the large wind resistance of the disc tube and the vortex at the leeward side of the disc tube, the back of the disc tube cannot be blown by the wind. Therefore, it seriously affects the cooling effect of the wind, thus affecting the efficiency of cooling

In addition, because the medium circulates smoothly in the disc tube and the flow rate is fast, the heat dissipation effect is also not good.

The heat exchange capacity of such heat exchangers is poor. In order to reduce the temperature, it is sometimes necessary to manufacture larger volume heat exchangers (two or even three rows of coil tubes are combined), which greatly increases the production cost and process difficulty. Therefore, it cannot meet the requirements of high-efficiency cooling

[0004] In addition, the bending process of the heat exchanger for the circular tube is relatively simple and mature, but for the bending process of the special-shaped tube, due to the special requirements of the shape of the special-shaped tube, the existing processing equipment and methods cannot meet the design requirements

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