Leakage point detecting device for graphite heat exchanger

A graphite heat exchanger and detection device technology, which is applied in the direction of measuring the increase and decrease rate of fluid, and liquid tightness measurement by using liquid/vacuum degree, can solve the problems of difficult detection and replacement of heat exchange tube leaks, etc. Achieve fast sealing, ensure the tightness of the seal, and ensure the effect of tightness

Inactive Publication Date: 2018-08-07
萝北奥星新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention overcomes the deficiencies of the above-mentioned prior art and provides a leak point detection device for graphite heat exchangers to solve the problem of difficulty in detecting and replacing the heat exchange tubes of the existing shell-and-tube graphite heat exchangers. question

Method used

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  • Leakage point detecting device for graphite heat exchanger
  • Leakage point detecting device for graphite heat exchanger
  • Leakage point detecting device for graphite heat exchanger

Examples

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specific Embodiment approach 1

[0057] Embodiment 1: The present invention will be described in detail below in conjunction with the accompanying drawings:

[0058] combine figure 1 As shown, a leakage point detection device of a graphite heat exchanger disclosed in this embodiment includes a plugging device 1, a detection head 2, an industrial computer 3 and a plug, and the plugging device 1 is installed on the One side of the heat exchanger 4, the detection head 2 is inserted into the heat exchange tube on the other side of the heat exchanger 4, the detection head 2 is connected with the industrial computer 3; one end of the heat exchanger 4 is sealed by the sealing device 1 , the heat exchange tubes in the heat exchanger are sequentially sealed by the probe 2, and the vacuum pressure is maintained by the industrial computer 3, and then the damaged heat exchange tubes are detected;

[0059] combine figure 2 and image 3 As shown, the blocking device 1 includes a blocking disk 5, a fixed disk 6 and a lo...

specific Embodiment approach 2

[0068] Specific implementation mode two, this implementation mode is based on the specific implementation mode one, specifically:

[0069] Specifically, the outer end of the fixed arm 64 is also provided with a limiting terminal 643, and the two ends of the limiting terminal 643 are provided with a slot, the slot is connected to the fixed arm 64 through a bolt, and the axial slide groove 641 Sealing, moving pulley 75 comes off.

[0070] Specifically, the detection head 2 is provided with an anti-slip sleeve 25 to prevent the detection head 2 from slipping.

[0071] Specifically, the end of the lead screw 71 is provided with a handwheel, which is convenient for locking the device.

specific Embodiment approach 3

[0072] Specific embodiment three, a negative pressure graphite heat exchanger detection method disclosed in this embodiment, the method is implemented on a leakage point detection device of a graphite heat exchanger described in specific embodiment one or two, including The following steps:

[0073] Step a: Open the flanges at both ends of the graphite heat exchanger, and rinse and dry the heat exchange tubes;

[0074]Step b: On one side of the graphite heat exchanger, adjust the plugging device, select a plugging disc of an appropriate size according to the model of the graphite heat exchanger, adjust the position of the moving pulley on the fixed arm and fix it with bolts. Fix the locking seat on the flange at the end of the graphite heat exchanger, rotate the hand wheel at the end of the screw, the screw rotates to drive the gear to rotate, the gear drives the rotating shaft to rotate, the rotating shaft pulls the locking rope tightly, and the locking rope Wrapped on the r...

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PUM

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Abstract

The invention relates to the technical field of graphite heat exchangers, in particular to a leakage point detecting device for a graphite heat exchanger. The leakage point detecting device comprisesa plugging device, a detecting head, an industrial personal computer and a plug. When leakage point detecting is carried out, the plugging device is installed at one side of the heat exchanger, and the detecting head is inserted into a heat exchange tube at the other side of the heat exchanger and is connected with the industrial personal computer. Therefore, vacuum pressure-maintaining testing iscarried on heat exchange tubes one by one, and the states of the heat exchange tubes are determined based on pressure rising situations and thus any heat exchange tube with any damage is discovered quickly. A first sealing plug and a second sealing plug are arranged at the two ends of the damaged heat exchange tube respectively and are connected by a connecting rope, so that a problem that a damaged heat exchange tube can not be found out easily during the maintenance process of the graphite heat exchanger is solved. Meanwhile, with a sealing mode with plugs at two ends, lots of cots caused by replacing a single heat exchange tube are reduced, so that an objective of saving the maintenance cost by sacrificing some heat exchange efficiency is achieved.

Description

technical field [0001] The invention relates to the technical field of graphite heat exchangers, in particular to a leakage detection device for graphite heat exchangers. Background technique [0002] Graphite heat exchanger is a heat exchanger made of graphite for heat transfer components. According to the structure, it can be divided into three types: block hole type, tube shell type and plate type. The type is divided into fixed type and floating head type according to the structure, and the fixed type is divided into immersion type, spray type and sleeve type. The sleeve type graphite heat exchanger adopts a closed cavity with several parallel heat exchange The layout of the tubes, in use, because the heat exchange tubes are made of graphite, the graphite itself is brittle, and the bending and tensile strength is low, resulting in the leakage of the heat exchange tubes due to the defects of the manufacturing itself or the use process, resulting in the loss of the heat ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/02G01M3/34
Inventor 陈瑞陈庚韩玉凤韩军王路科赵以峰杨硕李秀川
Owner 萝北奥星新材料有限公司
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