Rapid dismounting and rapid mounting type end steam seal structure for low-parameter backpressure turbine
A back-pressure steam turbine and low-parameter technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve problems such as heavy workload and hidden danger of steam leakage, and achieve the effects of reduced workload, reliable operation and simple structure
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specific Embodiment approach 1
[0021] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment, a low-parameter back pressure steam turbine quick-release and quick-install type end seal structure of this embodiment, which includes a first seal body 2, a shaft seal cover 5 and a second seal body 7, the shaft seal cover 5 is installed at the end of the cylinder, one side of the shaft cover 5 is sealed and connected with the upper half 4 of the cylinder, and the horizontal end surface of the shaft cover 5 is fixedly connected with the horizontal end surface of the lower half 10 of the cylinder;
[0022] The first seal body 2 is set between the upper half 4 of the cylinder and the rotor 9, the second seal body 7 is set between the shaft cover 5 and the rotor 9, and an annular groove is set on the outer wall of the end of the upper half 4 of the cylinder along the radial direction 4-1, the shaft cover 5 is a semi-circular structure, the inner wall of the shaft cover 5 is radiall...
specific Embodiment approach 2
[0023] Specific implementation mode two: combination figure 1 , Figure 4 and Figure 5 To illustrate this embodiment, the end steam seal structure of this embodiment further includes a first adjusting gasket 3 and a second adjusting gasket 6;
[0024] The outer ring of the first steam seal body 2 is radially provided with a first boss 2-1, and the inner rings of the upper half 4 of the cylinder and the lower half 10 of the cylinder are provided radially for cooperating with the first boss 2-1. The first groove, the first seal body 2 are respectively connected with the upper half 4 of the cylinder and the lower half 10 of the cylinder through the first boss 2-1 and the first groove that cooperate with each other, the first seal body 2 and the upper half of the cylinder A first adjusting gasket 3 is provided between 4 and the lower half 10 of the cylinder;
[0025] The outer ring of the second steam seal body 7 is radially provided with a second boss 7-1, and the inner ring ...
specific Embodiment approach 3
[0026] Specific implementation mode three: combination figure 1 , image 3 , Figure 4 and Figure 5 To illustrate this embodiment, the end seal structure of this embodiment also includes a first seal ring 1 and a second seal ring 8, the first seal ring 1 and the second seal ring 8 have the same structure, and the first seal ring 1 and the second seal ring 8 have the same structure. The outer rings of the seal ring 1 and the second seal ring 8 are provided with a T-shaped table 1-1 along the radial direction;
[0027] The first seal ring 1 is arranged between the first seal body 2 and the rotor 9, and the inner ring of the first seal body 2 is radially provided with a first T-shaped groove 2- for matching with the T-shaped table 1-1. 2. The first seal ring 1 is connected to the first seal body 2 through the matching T-shaped platform 1-1 and the first T-shaped groove 2-2;
[0028] The second seal ring 8 is arranged between the second seal body 7 and the rotor 9, and the in...
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