Built-in self-pre-tightening hanging piece of heat exchange tube

Abstract

The invention discloses a built-in self-pre-tightening hanging piece of a heat exchange tube. The built-in self-pre-tightening hanging piece is mainly composed of supporting claws, a pre-tightening spring and a hanging piece body, the pre-tightening spring is arranged on the upper portion of the hanging piece body, a conical hole allowing a flexible shaft to be arranged conveniently in a penetrating mode is formed in the lower portion of the hanging piece body, and a flexible shaft aligning hole is formed in the middle of the hanging piece body. The supporting claws and the central line of the hanging piece body form a V type, the pre-tightening spring and the hanging piece body are arranged in the heat exchange tube, one end of each supporting claw is integrally connected with the hanging piece body, the other end of each supporting claw can be hung at the end of the heat exchange tube after being bent, and the distance between the outermost ends of the supporting claws and the center of the heat exchange tube is larger than the radius of the heat exchange tube. A baffle is arranged on the hanging piece body, and the pre-tightening spring is arranged in the baffle. The included angle between the supporting claws and the central line of the hanging piece body ranges from 30 degrees to 60 degrees. The hanging piece can be effectively prevented from being pulled away or falling. The pre-tightening spring is arranged on the front portion of the hanging piece body, instant impact force generated by liquid waves can be effectively absorbed, pre-tightening force can be provided for the flexible shaft, the work stability of the device is increased, and the service life of the device is prolonged.

Description

technical field [0001] The invention relates to a support element of a water inlet end and a water outlet end of a heat exchange pipe enhanced heat transfer and a scale prevention and descaling device in a shell-and-tube heat exchanger, a heat exchanger, and the like. technical background [0002] Energy shortage is an important factor affecting the development of the world economy and a world problem that needs to be solved urgently. Energy saving and emission reduction is a key technology to solve energy problems. Shell-and-tube heat exchangers are widely used in petroleum, chemical, electric power, metallurgy, pharmaceutical and machinery industries. The heat exchange efficiency directly determines the economic benefits and environmental benefits. However, fouling generally exists on the heat exchange tube wall, which not only increases the flow resistance, but also reduces the heat exchange efficiency, causing a great waste of energy. The dirt in the heat exchange tube ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the pendant is easy to fall off and the pre-tightening force is insufficient during installation, the present invention designs a self-pretensioning pendant with a built-in heat exchange tube. The pendant is composed of a support grip, a pre-tension spring and a pendant body. There is a pre-tightening spring, the lower part of the pendant body has a conical hole for the convenience of wearing the flexible shaft, and the middle part of the pendant body has a centering hole for the flexible shaft, so that the flexible shaft passes through the pendant body and is always in the center of the heat exchange tube

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