Novel single-tube pass floating head heat exchanger

Abstract

The invention provides a novel single-tube pass floating head heat exchanger, and belongs to the field of floating head heat exchange. The novel single-tube pass floating head heat exchanger comprises a shell pass and a tube pass arranged inside the shell pass, wherein the shell pass comprises a shell pass barrel and an outer head cover; the shell pass barrel adopts a cylindrical structure; the outer head cover comprises an outer head cover flange, a barrel body, a seal head and a shell pass outlet connection tube which are sequentially connected; a barrel flange is arranged on the shell pass barrel; the shell pass barrel and the outer head cover are in bolted connection through the barrel flange and the outer head cover flange; an expansion joint is welded on the shell pass outlet connection tube; a tube pass connection tube is arranged on the tube pass; and the tube pass connection tube stretches out of the seal head of the outer head cover, and is positioned in the shell pass outlet connection tube.

Description

technical field [0001] The invention belongs to the field of floating head heat exchange, and in particular relates to a novel single-tube floating head heat exchanger. Background technique [0002] The single-tube floating head heat exchanger effectively combines the advantages of the floating head heat exchanger and the fixed tube sheet heat exchanger. It is also suitable for the situation where the pressure drop is small, easy to scale and needs to be cleaned. In combination with the actual situation of the project, it is very important to choose an appropriate structural form. [0003] However, the commonly used structural types such as figure 1 shown. figure 1 101 is a spherical head, 102 is an expansion joint, 103 is a clamping plate, 104 is a reverse flange, 105 is a pipe flange, and 106 is a flange. The structure of the tube box outlet of the floating head heat exchanger is widely used, but because these floating head connectors are all enclosed in the shell, ins...

AI Technical Summary

Problems solved by technology

The structure of the tube box outlet of the floating head heat exchanger is widely used, but because these floating head connectors are all enclosed in the shell, installation and maintenance are inconvenient, and the expansion joint bears the pressure of the tube side and the shell side at the same time, and the pressure between 105 and 106 The sealing surface between the sealing surface and 103 and 104 needs to ensure the sealing at the same time. The requirements for assembly are high, so there are often problems such as sealing leakage and inconvenient maintenance.

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