Measuring device for pitch of three-blade special-shaped holes of heat exchanger support plate of nuclear power unit
A heat exchanger and plate three-leaf difference technology, which is applied in the field of measurement devices for the distance between three-blade special-shaped holes on the support plate of nuclear power unit heat exchangers, can solve the problems of low measurement efficiency and difficult quality assurance, and achieve convenient measurement work, improve work efficiency, and facilitate the collection of materials
Pending Publication Date: 2019-01-04
上海瑞纽机械股份有限公司
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[0008] Nuclear power unit heat exchanger support plate is its key part, such as figure 1 , figure 2 As shown, thousands to more than 20,000 three-lobed special-shaped holes are densely covered on it, and the control of the hole size is a key item of quality control. The existing operation can only rely on the traditional vernier caliper for measurement, which makes the measurement efficiency low. In the case of batch measurement, it is difficult to guarantee the quality
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[0029] The technical solution of the present invention will be further described below in conjunction with the drawings and embodiments.
[0030] Please combine Figure 3 to Figure 10 As shown, the present invention provides a device for measuring the distance between three-lobe shaped holes in a heat exchanger support plate of a nuclear power unit, including:
[0031] The measuring tool body 4 includes a hollow mounting bar 401 and parallel surfaces 402 connected to both sides of the mounting bar 401 by ribs, so that the measuring tool body 4 is arranged in a hollow and multi-rib structure, which can ensure the rigidity of the measuring device 100 It also effectively reduces the overall weight and facilitates the measurement work. The mounting strip 401 is provided with a pair of installation through holes for installing the bushing 2 according to the nominal size of the three-lobe shaped hole pitch of the heat exchanger support plate of the nuclear power unit. The center distanc...
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The invention discloses a measuring device for the pitch of the three-blade special-shaped holes of a heat exchanger support plate of a nuclear power unit. The measuring device includes a measuring tool body, a pair of bushes, a pair of replaceable measuring pins and a pair of fixing screws. The measuring tool body includes a hollow installation strip and parallel planes connected to the two sidesof the installation strip through ribs, the installation strip is provided with a pair of installation through holes, and the center distance between the two through holes matches the pitch of the three-blade special-shaped holes. The bushes are respectively arranged in the corresponding installation through holes. The upper ends of the replaceable measuring pins are connecting ends and are connected to the corresponding bushes, and the lower ends of the replaceable measuring pins are measuring ends and are used for being tangential to the three-blade special-shaped holes for measurement. Thefixing screws are respectively connected to the corresponding installation through holes, and are used for fixing the upper ends of the corresponding replaceable measuring pins. The measuring deviceof the invention is suitable for measuring the pitch of various three-blade special-shaped holes of nuclear power unit heat exchanger support plates. By using the measuring device, the operation efficiency is greatly improved, the labor intensity of inspectors is reduced, and therefore, the inspection quality is improved.
Description
Technical field [0001] The invention relates to a measuring tool on a heat exchanger support plate of a nuclear power unit, and more specifically, relates to a measuring device for the three-lobe special-shaped hole distance of the heat exchanger support plate of a nuclear power unit. Background technique [0002] Nuclear power is a safe, clean, efficient and economical energy source. "Developing nuclear power efficiently on the basis of ensuring safety" is currently an important policy for the development of the nuclear industry in my country's energy construction. The development of nuclear power is of great significance for ensuring energy supply and safety, protecting the environment, realizing structural optimization and sustainable development of the power industry, and enhancing my country's comprehensive economic strength, industrial technology level and international status. [0003] The nuclear power industry is a modern high-tech intensive national strategic industry. It...
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IPC IPC(8): G01B5/14
CPCG01B5/14Y02E30/30
Inventor 张怀云韩绍东王洪涛
Owner 上海瑞纽机械股份有限公司