Heat exchanger with loose lining structure

Abstract

The invention provides a heat exchanger with a loose lining structure. The heat exchanger comprises a main body part and a pipe box part. The main body part comprises a shell, a pipe plate and a heatexchange pipe. The pipe plate is vertically arranged at one end of the shell, and the heat exchange pipe is vertical to the pipe plate in the shell; the pipe box part comprises a pipe box shell, and the pipe box shell is provided with a pipe box flange at a first end connected to the pipe plate; the heat exchanger also comprises the loose lining structure which comprises a pipe box shell corrosion-resistant layer which is arranged on the inner surface of the pipe box shell, at least one inward reinforcing ring is arranged on the pipe box shell corrosion-resistant layer in an extruding manner,and the ring surface of the reinforcing ring is parallel to the pipe plate. The heat exchanger provided with the reinforcing structure is high in corrosion resistant strength and good in stability, and can be used safely in vacuum and negative pressure working conditions. The heat exchanger is provided with leakage detection equipment capable of detecting sealing property of the heat exchanger anytime so as to prevent leakage of a medium, so that safe use is guaranteed.

Description

technical field [0001] The invention belongs to the field of heat exchange equipment, in particular to a heat exchanger with a loose lining structure. Background technique [0002] At present, in the field of heat exchanger manufacturing, full loose lining is usually used, so that the lining layer cannot be used under vacuum conditions. Under the working condition of -0.1MPa, it is very easy to lose stability, resulting in medium leakage, endangering the environment and life safety. Wait for the accident to happen. In addition, heat exchangers with a full loose lining structure generally use non-ferrous metal screws to fix the loose lining. This structure will inevitably lead to an increase in the thickness of the base plate and an increase in cost, and the use of non-ferrous metal screws increases the amount of welding and It is difficult to manufacture and increase the difficulty of inspection; it needs to stop for maintenance, resulting in unnecessary parking, wasting ti...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of heat exchanger manufacturing, full loose lining is usually used, so that the lining layer cannot be used under vacuum conditions. Under the working condition of -0.1MPa, it is very easy to lose stability, resulting in medium leakage, endangering the environment and life safety. wait for the accident

In addition, heat exchangers with a full loose lining structure generally use non-ferrous metal screws to fix the loose lining. This structure will inevitably increase the thickness of the base plate and increase the cost, and the use of non-ferrous metal screws will increase the amount of welding and Difficult to manufacture and increase the difficulty of inspection; need to stop for maintenance, resulting in unnecessary parking, wasting time, manpower and cost; therefore, in the post-manufacturing, the manufacturing process is complicated, the manufacturing cycle is long, and the cost is high

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