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Partition alignment tool and method

A clapboard and tool technology, which is applied in the field of aligning the clapboard of the tubular heat exchanger, can solve the problems of large tolerance of the tube hole, inaccurate axis, unusable, etc., achieves low cost, convenient alignment and positioning Accurate and convenient effect

Active Publication Date: 2016-01-06
HANGZHOU GUONENG STEAM TURBINE ENGINEER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above method has the following disadvantages: because the tube hole itself has a large tolerance, there is a gap between the sliding centering bolt and the tube plate tube hole, and the axis is not accurate; the tension of the steel wire cannot be accurately determined; when the diaphragm hole is raised It cannot be used when the volume is greater than 1 / 2 of the diameter of the pipe hole; the axis of the diaphragm pipe hole and the position of the steel wire cannot be accurately measured

Method used

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  • Partition alignment tool and method

Examples

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Effect test

Embodiment 1

[0034] The straightening tool includes a steel wire 4, a centering bolt 5, a steel wire fixer, a steel wire tension measuring device, and a clapboard straightening device.

[0035] Such as figure 2 As shown, one end of the centering bolt is a thread and a nut that matches the bolt, and the other end is an outer cone with an enlarged diameter. The bolt is covered with an expansion sleeve 6, and one end of the expansion sleeve has an inner hole corresponding to the taper of the bolt’s tapered end and is opened. The gap, that is, the centering bolt is similar to the expansion bolt provided with the central axis hole. Tighten the nut 7, fix the centering bolt on the hole of the tube plate 1, the outer tapered end of the centering bolt fits closely with the hole, so that the steel wire can accurately pass through the axis of the tube hole during work. A drill chuck 16 is provided at the end of the centering bolt.

[0036] Such as image 3As shown, in order to tension the steel ...

Embodiment 2

[0044] The situation that this embodiment adapts to is that when the distance that the partition plate 2 moves relative to the tube sheet 1 exceeds the radius of the partition hole, such as Figure 8 As shown, the alignment device of the condenser diaphragm also includes a steel wire to raise the eccentric plate 18. At this time, the centering bolt has an oblique hole 22 and a boss 19, and the eccentric plate is provided with The hole of the interference fit of the boss, the eccentric plate is provided with an eccentric hole 20 that deviates from the central axis of the centering bolt, and the eccentric plate is also provided with a level bubble 21, which is used to accurately adjust the eccentric plate to make the position of the eccentric hole precise.

[0045] Such as Figure 9 As shown, when the moving distance of the diaphragm relative to the tube sheet exceeds the radius of the diaphragm hole, replace the centering bolt with a centering bolt with a boss and an inclined ...

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Abstract

The invention provides a partition alignment tool and method, and belongs to the technical field of condenser partition mounting processes. The problems that alignment of partitions is difficult and low in accuracy in the prior art are solved through the partition alignment tool and method. The partition alignment tool comprises a steel wire, a centering bolt, a steel wire fixator, a steel wire tension measurer, a partition aligner and the like. The alignment method comprises the steps of tube plate mounting, steel wire centering, partition alignment measurement and the like. The partition alignment tool is simple in structure, low in cost, convenient to operate and high in alignment accuracy.

Description

technical field [0001] The invention belongs to the technical field of diaphragm installation technology, and relates to a method and a device for aligning a diaphragm of a tubular heat exchanger, in particular to a tool and a method for aligning a diaphragm of a condensing steam turbine. Background technique [0002] The condenser is an important part of the condensing steam turbine. Its function is to cool the exhaust steam of the steam turbine into condensed water to keep the vacuum of the exhaust steam of the steam turbine and to reuse the condensed water to complete the thermodynamic cycle of the steam turbine. The condenser is a tube heat exchanger, the internal main structure ( figure 1 ), thousands of condenser tubes are arranged almost in parallel ( figure 1 Only one condensing tube is shown), the two ends of the condensing tube are respectively penetrated into the tube holes of the two tube sheets to be expanded or fixed by welding, and a plurality of partitions a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/10
CPCB23P19/10
Inventor 钱敏强张华妃章伟民厉志远陈东晓
Owner HANGZHOU GUONENG STEAM TURBINE ENGINEER
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