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Mechanical seal centrifugal type pumping ring for high-temperature pump

A mechanical seal and centrifugal technology, which is applied to components of pumping devices for elastic fluids, mechanical equipment, non-variable pumps, etc., can solve problems such as less heat, low work efficiency, and short service life of sealing devices , to achieve high work efficiency, reduce flow resistance, and strong adaptability

Pending Publication Date: 2019-07-05
XIAN YONGHUA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the straight-toothed pumping ring in the prior art takes away less heat and has low work efficiency, resulting in a short service life of the sealing device

Method used

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  • Mechanical seal centrifugal type pumping ring for high-temperature pump
  • Mechanical seal centrifugal type pumping ring for high-temperature pump
  • Mechanical seal centrifugal type pumping ring for high-temperature pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, a mechanical seal centrifugal pumping ring for a high temperature pump is composed of a main body 1 , an annular groove 2 , a round hole 3 and a throttling groove 4 .

[0026] Such as figure 2 , image 3 as well as Figure 4 As shown, the main body 1 is composed of the first side wall 11 of the bottom wall 10 and the second side wall 12. The middle position of the bottom wall 10 vertically extends upwards to have the first side wall 11, and the edge position of the bottom wall 10 vertically extends upwards to have the second side wall. The side wall 12, the bottom wall 10 and the first side wall 11 and the second side wall 12 form an annular groove 2, and a plurality of circular holes 3 are evenly opened on the annular groove 2, and the circular holes 3 are inclined along the circumference of the bottom wall 10. Round hole, according to the principle of centrifugal force, the angle between round hole 3 and the radius of the circle where bo...

Embodiment 2

[0032] The main body 1 is mainly used in the case of flushing plan PLAN23, short and small sealed cavity, high medium temperature and urgent need to cool down. In the flushing scheme of PLAN23, after actual testing, under the pumping effect of the straight-toothed pumping ring, the temperature of the sealing liquid passing through the heat exchanger is only 40-55°C lower than the temperature in the sealing chamber 7, while in Under the pumping effect of the main body 1 , the temperature of the sealing liquid passing through the heat exchanger is 80-90° C. lower than the temperature in the sealing cavity 7 . See Table 1 and Table 2 for details. Table 1 is the temperature value of the sealing liquid after passing through the heat exchanger under the pumping action of the straight-toothed pumping ring. Table 2 is the temperature value of the sealing liquid after the heat exchanger is pumped by the main body 1. The temperature value after heating. By comparison, under the pumping...

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Abstract

The invention discloses a mechanical seal centrifugal type pumping ring for a high-temperature pump. A body is included and composed of a bottom wall, a first side wall and a second side wall. The middle position of the bottom wall upwards vertically extends to form the first side wall. The edge position of the bottom wall upwards vertically extends to form the second side wall. An annular grooveis formed by the bottom wall, the first side wall and the second side wall. The annular groove is evenly provided with a plurality of circular holes. The first side wall and the second side wall are provided with throttling grooves. The centrifugal type pumping ring is adopted for seal liquid circulating, heat generated by a seal grinding pair can be brought away, the seal liquid flow is increasedthrough the inclined circular holes, the flowing resistance of the seal liquid is reduced, the seal liquid can be more rapidly circulated, and therefore more heat in a seal cavity can be brought away. Through the arrangement of the throttling grooves, the flow rate of the seal liquid can be increased, the heat generated through sealing can be brought away with the highest rate to the maximum degree, the work efficiency is high, and the field usage circulation effect is good.

Description

technical field [0001] The invention relates to a mechanical seal of a high-temperature pump, in particular to a centrifugal pumping ring for a mechanical seal of a high-temperature pump. Background technique [0002] In the flushing scheme PLAN23 system, the pumping ring plays the role of driving the sealing liquid, specifically refers to the circulation process in which the sealing liquid is driven by the pumping ring and comes out of the sealing cavity, passes through the heat exchanger for cooling, and then returns to the sealing cavity . However, the straight-toothed pumping ring in the prior art takes away less heat and has low working efficiency, resulting in a short service life of the sealing device. Contents of the invention [0003] In order to improve the working efficiency of the pumping ring and prolong the service life of the sealing device, the application provides a mechanical seal centrifugal pumping ring for high temperature pumps. [0004] Above-menti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/08F04D29/58
CPCF04D29/086F04D29/588
Inventor 申永峰
Owner XIAN YONGHUA GROUP