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Device used for adjusting heat expansion difference of inner sleeve heat exchanger

A technology with thermal expansion difference and inner sleeve, which is used in heat exchanger sealing devices, heat exchange equipment, lighting and heating equipment, etc., to achieve the effect of large elastic compensation amount and large elastic compensation effect

Active Publication Date: 2017-01-11
LUOYANG PETROCHEMICAL ENG CORP SINOPEC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the internal leakage problem existing in the prior art, the present invention provides a device for adjusting the thermal expansion difference of the inner sleeve heat exchanger

Method used

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  • Device used for adjusting heat expansion difference of inner sleeve heat exchanger
  • Device used for adjusting heat expansion difference of inner sleeve heat exchanger
  • Device used for adjusting heat expansion difference of inner sleeve heat exchanger

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Embodiment approach

[0037] figure 2 is the second embodiment of the present invention, relative to figure 1 The improvement is that the tube plate 1 is a cake shape with a thin annular sealing surface and a thick middle with an annular step. The thick middle part protrudes toward the shell side Q, and the diameter of the protruding part matches the inner diameter of the shell side Q. The supporting sleeve 2 can be replaced in whole or in part to reduce the length of the supporting sleeve 2 . The compensation mechanism 3 in the figure is a structure in which double rings are stacked in opposite directions with cross-sectional oblique angles.

[0038] image 3 is the third embodiment of the present invention, relative to figure 2 The improvement is that the inner diameter of the support sleeve 2 is the same as the inner diameter of the shell side Q, so that in order to enable the support sleeve 2 to be inserted into the shell side Q, a pipe box inner wall with a small inner diameter at the sea...

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Abstract

The invention discloses a device used for adjusting the heat expansion difference of an inner sleeve heat exchanger. The device is mainly composed of a pipe box, an inner sleeve, a pipe plate, a supporting sleeve and a compensation mechanism. The pipe plate divides the internal space of the pipe box into a pipe pass side and a shell pass side in the axial direction. The inner sleeve is located on the pipe stroke side, and one end of the inner sleeve abuts against the pipe plate. An annular sealing gap is formed by an annular sealing face on the outer edge of the pipe plate and a sealing step face on the inner wall of the pipe box. The annular compensation mechanism is arranged in the annular sealing gap and is attached to the sealing step face in the pipe box and the annular sealing face on the pipe plate through sealing gaskets arranged on the compensation mechanism to form seals. The supporting sleeve is located on the shell pass side, one end of the supporting sleeve is fixedly connected to the pipe plate, and the other end of the supporting sleeve is inserted in the shell pass side by a certain length. The expansion difference is offset or absorbed through the elastic adjusting function of the annular compensation mechanism, and inner leakage can be avoided or at least greatly reduced.

Description

technical field [0001] The invention relates to an inner sleeve heat exchanger in the fields of petroleum, chemical industry and coal chemical industry, etc., usually refers to a threaded locking ring heat exchanger of a hydrogenation device, and specifically relates to a heat exchanger for adjusting the thermal expansion difference of an inner sleeve heat exchanger device. Background technique [0002] The high-pressure heat exchangers of hydrogenation units in the fields of petroleum, chemical and coal chemical industries usually adopt threaded locking ring structures or other inner sleeve structures. The tube side and shell side of this structure are sealed by an internal gasket. The internal gasket The sealing pressure is applied by the inner sleeve. When the temperature fluctuates during the start-up and shutdown stages or during operation, the sealing pressure on the inner gasket is unstable due to the difference in thermal expansion and cold contraction between the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F11/00
Inventor 柴祥东
Owner LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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