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Gas sealing device for rotating equipment and stirrer

A technology of gas sealing and rotating equipment, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc. It can solve the problems that parts cannot be split, the sealing effect is unstable, and the mechanical seal structure is complicated, etc., so as to save manpower Cost and economical cost, simple structure and low maintenance cost

Pending Publication Date: 2018-11-06
天津市合润科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The structure of the mechanical seal is complicated, there are many leakage points, and the assembly precision is very high, and it is affected by factors such as field use conditions, equipment precision, and the technical level of the installer, resulting in unstable sealing performance, easy to leak, and a service life of half a year. to about a year
[0004] It is also extremely difficult to replace the mechanical seal. The mechanical seal is an annular part. Generally, these parts cannot be split. Therefore, when replacing, it is necessary to partially or completely disassemble the transmission part of the machine to take out the sealing part from the end of the transmission shaft.
It is difficult to disassemble and assemble large-scale equipment, which reduces the utilization rate of equipment, not only consumes a lot of maintenance funds, but also consumes a lot of manpower and material resources

Method used

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  • Gas sealing device for rotating equipment and stirrer
  • Gas sealing device for rotating equipment and stirrer
  • Gas sealing device for rotating equipment and stirrer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1, see figure 1, a gas sealing device for rotating equipment, comprising an equipment sealing box 1, an equipment rotating shaft 2 mounted in the equipment sealing box, a sealing device 3 is arranged between the equipment sealing box and the rotating shaft, and the sealing device is a gas-tight The device includes a shaft sleeve 3-1, a sealing sleeve 3-2, a first dynamic sealing member 3-3 and a parking sealing assembly 3-4 installed on the rotating shaft of the equipment, and the above-mentioned shaft sleeve, sealing sleeve, dynamic sealing member and parking The sealing assembly forms a gas sealing chamber. When the equipment is in normal operation, the pressure of the sealing gas in the gas sealing chamber is greater than the pressure in the equipment sealing box; in the equipment sealing box 1, the shaft sleeve 3-1 is connected to the Positioning member 4, for example, if the equipment is a stirring device, then the positioning member is a blade hub installe...

Embodiment 2

[0042] Example 2, see figure 2 , in order to further improve the sealing effect, an auxiliary oil seal structure is added on the basis of Embodiment 1; specifically, the sealing sleeve 3-2 includes a device sealing box connection part 3-20, a gas sealing chamber 3-21, a dynamic sealing The installation part 3-22 and the support part 3-26; the connecting part 3-20 of the equipment sealing box is fixedly installed in the sealing sleeve installation groove 1-1 on the inner wall of the equipment sealing box 1 through fasteners, and the connecting part of the equipment sealing box A second rubber sealing ring 3-8 is provided on the outer peripheral wall;

[0043] A spacer ring 3-27 is provided between the gas-tight chamber 3-21 and the support part 3-26 in the sealing sleeve 3-2, and an installation groove 3-28 is provided on the spacer ring towards the side of the support part, and the installation groove A second dynamic sealing member 3-29 is installed inside;

[0044] A supp...

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Abstract

The invention relates to a gas sealing device for rotating equipment and a stirrer. The gas sealing device includes an equipment sealing box, and an equipment rotating shaft mounting on the equipmentsealing box in a penetrating mode, and a sealing device is arranged between the equipment sealing box and the rotating shaft; and the gas sealing device is characterized in that the sealing device isthe gas sealing device and includes a shaft sleeve, a sealing sleeve, a moving sealing member and a parking sealing assembly, wherein the shaft sleeve, the sealing sleeve, and the moving sealing member are arranged on the equipment rotating shaft, a gas sealing cavity is formed by the shaft sleeve, the sealing sleeve, the moving sealing member and the parking sealing assembly, the shaft sleeve isconnected with and mounted on a positioning member of the equipment rotating shaft in the equipment sealing box, a first rubber sealing ring is arranged between the outer end face of the shaft sleeveand the end face of the positioning member, the shaft sleeve on the outer side of the equipment sealing box is connected with a disassembling ring, the disassembling ring is mounted on the equipment rotating shaft in a sleeved mode, and the sealing sleeve is mounted on the equipment sealing box through a fastening piece. The invention further discloses the stirrer applying the gas sealing device.The gas sealing device has the advantages of being simple in structure, convenient to mount and use, convenient to repair, long in service life, low in cost, high in sealing effect and the like.

Description

technical field [0001] The invention belongs to the technical field of equipment sealing, and in particular relates to a gas sealing device and a stirrer for rotating equipment with a rotating speed lower than 300 rpm and a pressure lower than 0.4 MPa. Background technique [0002] At present, the structure and sealing principle of mechanical seals (including dry gas seals) at home and abroad are basically the same. A pair or several pairs of sealing rings are attached to each other to form a sealing end face. The sealing ring that rotates with the shaft is called a moving ring or a rotating ring. The sealing ring that does not rotate with the shaft is called a stationary ring or a static ring. The compensation mechanism composed of springs and related parts applies spring force to the sealing ring to perform the axial compensation function of the sealing ring. The remaining leakage points are sealed with sealing rubber rings. [0003] The structure of the mechanical seal is...

Claims

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Application Information

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IPC IPC(8): F16J15/40F16J15/3204F16N1/00
CPCF16J15/40F16J15/3204F16J15/324F16N1/00
Inventor 于建军
Owner 天津市合润科技有限责任公司