Spherical sealing head and connection pipe assembly and installation method thereof
A technology of spherical head and installation method, which is applied in the direction of container filling method, container discharge method, pressure vessel, etc., can solve the problems of nozzle positioning size and angle error, thermal deformation, spherical head springback, etc., and achieve reduction Welding difficulty, easy operation, easy to adjust the effect
Active Publication Date: 2016-11-09
HARBIN ELECTRIC CORP QINHUANGDAO HEAVY EQUIP
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Problems solved by technology
[0004] 1) During the forming process of the spherical head, the head plate is heated to a certain temperature and then stamped and cooled to form. The formed spherical head may rebound, and the outer surface cannot be as regular as the theoretical value;
[0005] 2) During the stamping process of the spherical head, the head plate will be stretched. In order to ensure the minimum wall thickness of the spherical head, the thickness of the head plate is generally greater than the theoretical thickness of the spherical head after forming, so the spherical head used in production There is a certain deviation between the wall thickness of the head and the theoretical value;
[0006] 3) Most of the installation holes of the spherical head connecting pipe are opened by flame gas cutting, and the heat output is large, and the edge of the hole will be deformed by heat after the hole is opened
[0007] The above three points all cause the difference between the outer surface shape of the formed spherical head and the theoretical shape, so the measurement method based on the spherical head is prone to errors in the positioning size and angle of the nozzle, which affects the connection between the spherical head nozzle and the external nozzle.
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[0037] The following describes the present invention in detail, and the features and advantages of the present invention will become more clear and definite along with these descriptions.
[0038] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
[0039] According to a first aspect of the present invention, a spherical head joint assembly is provided, such as figure 1 As shown, the assembly includes a spherical head 1 and a connecting pipe 2. The spherical head 1 is provided with a through hole, and the connecting pipe 2 is connected to the spherical head 1 through the through hole.
[0040] In the present invention, if figure 2 , image 3 As sho...
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The invention discloses a spherical sealing head and connection pipe assembly and an installation method thereof. The assembly comprises a spherical sealing head (1) and a connection pipe (2); and the spherical sealing head (1) is a less-semispherical sealing head or a semispherical sealing head and is provided with a centripetal through hole which is used for installing the connection pipe (2). The installation method of the spherical sealing head and connection pipe assembly includes the steps that the spherical sealing head (1) is obliquely adjusted; and the dimension of the distance, difficult to measure, from the end face of the connection pipe (2) to the sphere center of the sealing head is converted into the accurate and measurable distance from the end face of the connection pipe (2) to a datum plane (3) through measurement and conversion, and installation of the connection pipe (2) is completed. By means of the spherical sealing head and connection pipe assembly and the installation method of the spherical sealing head and connection pipe assembly, accurate positioning of the installation angle and the length of the centripetal connection pipe on the spherical sealing head (1) can be achieved.
Description
technical field [0001] The invention relates to the technical field of heads, in particular to a spherical head joint assembly and a precise installation method thereof. Background technique [0002] Spherical heads are a common form of heads in pressure vessel manufacturing. After the product is manufactured, butt welding is carried out on the head connecting pipe and the external pipe at the installation site. The positioning of the head connection is very important. If the position deviation is large, it will cause problems such as interference between the head connection and the external pipeline, a large gap or a large misalignment, which will affect the butt welding between the connection pipe and the external pipeline. The installation size requirements of the connecting pipe are relatively strict. [0003] The positioning dimension of the connecting pipe on the spherical head is usually marked in the form of the distance from the end face of the connecting pipe to ...
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Login to View More IPC IPC(8): F17C13/06F16J13/00
CPCF16J13/00F17C13/06
Inventor路扬王佐森李洪利李学鸥张克陶磊洁宋佳权王磊杨雪松张宏博安旭
OwnerHARBIN ELECTRIC CORP QINHUANGDAO HEAVY EQUIP