Spray type centrifugal sealing device
A technology of sealing device and sealing cavity, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problem of low sealing pressure of centrifugal sealing, achieve the effect of increasing sealing pressure, realizing radial multi-stage sealing, and preventing leakage
Active Publication Date: 2018-08-24
BEIJING SPACEFLIGHT SPECIAL EQUIP DETECTION RES DEV CO LTD
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In view of the above situation, the present invention will provide a rotary jet centrifugal sealing device, which is expected to solve the problem of low sealing pressure in the centrifugal seal
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] The above contents of the present invention will be further described in detail below in conjunction with the specific implementation manners of the embodiments shown in the accompanying drawings. The right side in the text is the high voltage side.
[0017] Such as figure 1 As shown, the rotary jet type centrifugal sealing device of the present invention mainly includes a left water throwing ring 1, a rotating housing 2, a water retaining plate 3, a left end cover 4, an intermediate cavity 5, a slide valve 6, a spring 7, and a right water throwing ring. Ring 8, sleeve 9, right end cover 10, sealing rings 11, 12, 13, 14, rotary jet impeller 15. The left end cover 4 and the right end cover 10 are fixed on both ends of the middle cavity 5 to form a sealed cavity. The rotating shaft passes through the sealed cavity in a freely rotatable manner. On the shaft, it rotates together with the rotating shaft. The swirling impeller 15 is arranged in the rotating casing 2 and fix...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a rotary jet grouting type centrifugal sealing device for sealing gas through liquid. The rotary jet grouting type centrifugal sealing device comprises a sealed cavity, a centrifugal sealing assembly and an air control sliding valve shutdown sealing assembly. The centrifugal sealing assembly comprises a rotation shell and a rotary jet grouting type impeller. The rotation shell is fixed to a rotation shaft through a set screw on the left side in a sealed cavity and rotates along with the rotation shaft. The rotary jet grouting type impeller is arranged in the rotation shell and is fixed to the sealed cavity in the manner that rotation of the rotation shell is not stopped. A sealing liquid collecting runner and a stop and seal runner are jointly formed by the rotation shell and the rotary jet grouting type impeller. The rotation shell is fixed to the rotation shaft to serve as an impeller of an auxiliary impeller shell and also serve as a shell of a centrifugal seal, and when the rotation shaft rotates, the effects of impeller pumping and shell centrifuging can be achieved at the same time, and radial multi-level sealing is achieved. The rotary jet grouting type impeller is provided with a flow gathering pipe used for collecting liquid rotating at a high speed and guiding the liquid to the high-pressure seal side. Through the shutdown sealing assembly, the sealing performance is guaranteed during device shutdown.
Description
technical field [0001] The invention belongs to the field of gas sealing, and relates to a novel centrifugal sealing structure for gas applications, which is suitable for rotating shafts of fluid machinery including various reaction kettles, fans, compressors, and supergravity machines, especially for high-speed equipment. Sealing of rotating shafts. Background technique [0002] The centrifugal seal is a device that pumps the leaked liquid to a high pressure or forms a liquid barrier to prevent the leakage of high pressure gas through the rotation of the rotating parts, so as to prevent the leakage of liquid or gas from high pressure to low pressure. The most common form of sealing Centrifugal seal for back vane and expeller. As a kind of traditional hydrodynamic seal, the centrifugal seal has the characteristics of simple structure, no friction and wear of the main seal, and long service life. It has achieved better results in blocking liquid and has good sealing ability....
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/42F16J15/16
CPCF16J15/164F16J15/42
Inventor 智冬田春雨苑鸿志伍建雄李双喜
Owner BEIJING SPACEFLIGHT SPECIAL EQUIP DETECTION RES DEV CO LTD