A fixing device for heat exchange tube pressure test
A technology for fixing devices and heat exchange tubes, which is applied to heat exchanger shells, heat exchange equipment, lighting and heating equipment, etc., which can solve the problems that the pressure test flange cannot be reused and the production cost of the heat exchanger is high
Active Publication Date: 2019-01-22
JIANGSU MINSHENG HEAVY IND
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- Abstract
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- Application Information
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Problems solved by technology
However, shell-side cylinders of different specifications and models need to make pressure test flanges of different specifications and models, and the pressure test flanges cannot be reused, resulting in higher production costs of the heat exchanger
Method used
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Embodiment Construction
[0015] combine figure 1 , 2 , the present invention is described in detail.
[0016] Such as figure 1 , 2 As shown, the present invention provides a fixing device for heat exchange tube pressure test, which includes a tube plate 11, a mounting flange arranged above the cylinder body 12, and a fastening mechanism 20, wherein the fastening mechanism 20 includes an upper pressure plate 24. The middle part 23, the lower pressing plate 25, the connecting rod 22 and the wrench 21 are provided with a through hole on the upper pressing plate, the connecting rod 22 passes through the through hole, one end is fixed on the middle part 23, and one end is connected with the wrench 21. Through the rotation of the wrench 21, the fixing device can be tightened and loosened, so as to realize the retraction and retraction of the mounting flange and the tube sheet. The fixing device of the invention has simple structure and convenient operation. The wrench and one end of the connecting rod ...
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The invention provides a fixing device for pressure testing of a heat exchange tube. The fixing device comprises a tube sheet, a mounting flange and fastening mechanisms, wherein the mounting flange and the fastening mechanisms are arranged above a tube body. Each fastening mechanism comprises an upper pressing plate, a middle part, a lower pressing plate, a connecting rod and a wrench. Each upper pressing plate is provided with a through hole, and each connecting rod penetrates through the corresponding through hole. One end of each connecting rod is fixed to the corresponding middle part, and the other end of each connecting rod is connected with the corresponding wrench. The fixing device has the beneficial effects that only the mounting flange and the tube sheet need to be fixed by the fixing device in the pressure testing process due to arrangement of the fixing device, so that the device is simple and practical; and moreover, repeated trial operation can be realized, and the device is suitable for heat exchangers of different sizes and structures.
Description
technical field [0001] The invention relates to the field of heat exchangers, in particular to a fixing device for pressure testing of heat exchange tubes. Background technique [0002] The structure of the heat exchanger mainly includes: a cylinder body, a tube plate with tube holes is arranged on the top of the cylinder body, a mounting flange is arranged on the head of the cylinder body, and a tube box is installed on the outer end of the tube plate, and the tube box is installed through the installation method. The flange is fixedly connected to the shell-side cylinder, and a number of heat exchange tubes are arranged in the cylinder, and the heat exchange tubes are welded and fixed in the tube holes on the tube plate. In the process of making the heat exchanger, it is necessary to conduct a pressure test on the cylinder to check whether there is any leakage in the weld between the tube sheet and the heat exchange tube. During the pressure test, it is necessary to seal ...
Claims
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IPC IPC(8): F28F9/26
Inventor 倪飞冯翼飞张文彬高华金包先华孙龙春倪伟卢宏文黄振奇杨传珍陈太华严波
Owner JIANGSU MINSHENG HEAVY IND