CN214118953U - Internal flow internal pressure and external flow external pressure combined type double-end-face shaft seal system - Google Patents
Internal flow internal pressure and external flow external pressure combined type double-end-face shaft seal system Download PDFInfo
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- CN214118953U CN214118953U CN202023083957.7U CN202023083957U CN214118953U CN 214118953 U CN214118953 U CN 214118953U CN 202023083957 U CN202023083957 U CN 202023083957U CN 214118953 U CN214118953 U CN 214118953U
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Abstract
The utility model discloses an internal flow internal pressure and external flow external pressure combined double-end-face shaft seal system, which comprises an auxiliary seal movable ring seal ring, an auxiliary seal static ring seal ring and an auxiliary seal static ring auxiliary seal ring, wherein the auxiliary seal movable ring seal ring is arranged between the auxiliary seal static ring and a gland, the auxiliary seal static ring seal ring is arranged between the auxiliary seal movable ring seat and the auxiliary seal movable ring, the auxiliary seal static ring auxiliary seal ring is arranged between the auxiliary seal movable ring seat and a shaft sleeve, and the auxiliary seal movable ring corresponds to the main seal movable ring; the utility model has the advantages that: simple structure easily makes the installation, can improve the pump mechanical seal's for the effect, improve equipment and continue the cycle of operation, reduce maintenance cost and maintenance intensity, reduce the manufacturing cost of enterprise, improve the potential safety hazard protection level.
Description
Technical Field
The utility model relates to a shaft seal device for rotary equipment, specifically speaking are a machine pump bearing seal system that is used for being not conform to relevant machine pump seal chamber structural design standard, and medium viscosity number is high, the material that contains the granule, installation space is limited, can't go on former equipment with institutional advancement's rotary equipment bearing seal device.
Background
The mechanical seal for the pump has complex use condition, often fails and is damaged, particularly the viscosity value of a medium is high, the temperature is high, the material contains particles, the installation space is limited, and the like, so that the universal structural improvement of the shaft seal device of the pump equipment can not be carried out on the original equipment. The equipment with the working condition is particularly prominent in industrial and mining enterprises and part of civil and private enterprises which are long in the years, particularly in the sealing failure conditions of mechanical pumps such as boiler feed pumps, pre-pumps, condensation pumps, sewage sludge pumps, glue solution pumps of rubber devices, asphalt pumps of asphalt devices and the like of old power plants. The main reasons for the failure of many devices are that the viscosity value of the medium is high, the material contains particles, which causes the premature failure of the auxiliary sealing ring of the mechanical seal and the loss of the compensation capability of the compensation original piece due to the physical property, which causes the damage of the friction pair surface of the dynamic and static rings and the leakage of the mechanical seal.
The shaft seal reconstruction of the machine pump at home is to simply install a set of general large spring mechanical seal with a simple structure, the large spring is not easy to lose effectiveness because of high viscosity or the early of materials containing particles, but the friction pair of the single-end-face mechanical seal with the large spring structure can not guarantee the perpendicularity requirement of the friction pair to the shaft, once the large spring is leaked, the large spring is directly leaked to the atmosphere side to pollute the environment, the materials are mostly formed by polymerization, catalysis, condensation, steam stripping and other processes through the reaction of various catalysts, in the reaction process, a large amount of toxic and harmful substances are accompanied, the materials are inflammable and explosive, so that partial machine pumps select the mechanical seal with the small spring structure, but the mechanical seal with the small spring structure causes the early loss of the compensation capability of the spring to the friction pair due to the properties of the materials, the leakage is caused, the section of a spring wire of the single spring is much thicker than that of a plurality of springs, the chances of a single spring being successful are greater if the spring is exposed to abrasive environments or is easily clogged with solid particles or paint. The springs are arranged outside the liquid to be treated, so that the blockage can be overcome, the abrasion can still exist, the pressure distribution of a single spring is poor, the uniform surface load along the whole sealing circumference is difficult to obtain, the structure of a plurality of springs can be used, although the structure is changed into a small spring structure, the leakage rate is reduced, the potential safety hazard still exists, due to the defects of the equipment, the installation space of the double-end-surface shaft seal of the general structure is limited, and the equipment is always in a single-end-surface structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to design an interior internal pressure and external flow external pressure combination formula two terminal surface bearing seal system, adopted the little spring structure of two terminal surfaces and spring not give material direct contact's structural style at the operation in-process, avoided the compensation original paper because of material and compensation original paper direct contact at the operation in-process, and cause the too early of mechanical seal to reveal because of the too early inefficacy of compensation original paper is caused to the nature of material.
The technical scheme of the utility model is that:
the utility model provides an interior internal pressure and external pressure combination formula bi-polar face shaft seal system that flows, includes vice closed rotating ring sealing washer, vice closed quiet ring sealing washer and vice closed quiet ring auxiliary seal circle, vice closed rotating ring sealing washer sets up between vice closed quiet ring and gland, vice closed quiet ring sealing washer sets up between vice closed rotating ring seat and vice closed rotating ring, vice closed quiet ring auxiliary seal circle sets up between vice closed rotating ring seat and axle sleeve, vice closed rotating ring is corresponding with the main rotating ring that seals.
The shaft sleeve is externally provided with a gland, the inner side of the gland is provided with a main seal static ring, and a main seal static ring auxiliary sealing ring is arranged between the main seal static ring and the gland.
And a main seal movable ring auxiliary sealing ring and a main seal compensation element are arranged between the shaft sleeve and the gland.
The gland is provided with a gland sealing ring.
The shaft sleeve is provided with a shaft sleeve sealing ring.
The auxiliary seal static ring is arranged on the auxiliary seal movable ring seat.
And the auxiliary seal movable ring seat is provided with a transmission screw.
And the auxiliary sealing static ring and the main sealing static ring are provided with main and auxiliary sealing anti-rotation pins which are arranged on the two static rings for punching and fixing the cover plate.
Utilize main seal rotating ring auxiliary seal circle to separate compensation original paper and working medium, main seal rotating ring and main quiet ring will compensate the original paper and separate with the seal chamber, compensate the original paper not with working medium and sealed oily contact, keep compensating the long-term effective of original paper.
The utility model has the advantages that: the mechanical pump shaft seal device is used for a mechanical pump shaft seal system which is not in line with the structural design standard of a related mechanical pump seal cavity, has high medium viscosity value, contains particles, is limited in installation space, cannot be used on original equipment and is structurally improved.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural view of an internal flow internal pressure and external flow external pressure combined double-end-face shaft seal system according to an embodiment of the present invention;
in the figure: 1-shaft sleeve; 2-main seal moving ring auxiliary seal ring; 3-a main seal compensation element; 4-main seal ring, 5-gland; 6-main seal static ring auxiliary seal ring; 7-auxiliary sealing ring of movable ring; 8-gland sealing ring; 9-auxiliary sealing static ring sealing ring; 10-auxiliary sealing static ring auxiliary sealing ring; 11-shaft sleeve sealing ring; 12-a main stationary seal ring; 13-main and auxiliary seal anti-rotation pins; 14-secondary seal static ring; 15-auxiliary sealing movable ring seat; 16-drive screw.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is not intended to limit the invention.
Example 1
As shown in fig. 1, the internal flow internal pressure and external flow external pressure combined double-end-face shaft seal system comprises an auxiliary seal moving ring seal ring 7, an auxiliary seal stationary ring seal ring 9 and an auxiliary seal stationary ring auxiliary seal ring 10, wherein the auxiliary seal moving ring seal ring 7 is arranged between an auxiliary seal stationary ring 14 and a gland 5, the auxiliary seal stationary ring seal ring 9 is arranged between an auxiliary seal moving ring seat 15 and an auxiliary seal moving ring, the auxiliary seal stationary ring auxiliary seal ring 10 is arranged between the auxiliary seal moving ring seat 15 and a shaft sleeve 1, and the auxiliary seal moving ring corresponds to the main seal moving ring 4.
The shaft sleeve 1 is externally provided with a gland 5, the inner side of the gland 5 is provided with a main seal static ring 12, and a main seal static ring auxiliary sealing ring 6 is arranged between the main seal static ring and the gland 5.
And a main seal moving ring auxiliary sealing ring 2 and a main seal compensation element 3 are arranged between the shaft sleeve 1 and the gland 5.
The gland 5 is provided with a gland sealing ring 8.
The shaft sleeve 1 is provided with a shaft sleeve sealing ring 11.
The secondary seal static ring 14 is arranged on a secondary seal movable ring seat 15.
And a transmission screw 16 is arranged on the auxiliary seal movable ring seat 15.
And the auxiliary sealing static ring 14 and the main sealing static ring are provided with main and auxiliary sealing anti-rotation pins 13, and the main and auxiliary sealing anti-rotation pins 13 are arranged on the two static rings for punching and fixing the cover plate.
Utilize main seal rotating ring auxiliary seal circle 2 to separate compensation original paper and working medium, main seal rotating ring and main quiet ring will compensate original paper and seal the chamber and separate, compensate the original paper not with working medium and sealed oily contact, keep compensating the long-term effective of original paper.
The working medium is arranged on the left side, in order to seal the solution on the left side, the working process is secondary sealing, the sealing performance is ensured, and the sealing principle is the same as that of the common double-end-face shaft seal.
The utility model discloses simple structure easily makes the installation, can improve the pump mechanical seal's for the effect, improve equipment continues the cycle of operation, reduces maintenance cost and maintenance intensity, reduces the manufacturing cost of enterprise, improves potential safety hazard protection level. After the sealing device is applied, the sealing performance is prolonged to more than 8000 hours from the original 5000 hours, the labor intensity of workers is reduced, the field environment is improved, and the safety is ensured.
The dual-end-face structure of STREAMING and STREAMING integrated configuration, guarantee to rationally utilize the cavity exterior space under the safe prerequisite, cavity internally mounted's STREAMING bearing seal takes place to leak the back has the leakage release mouth to discharge to the safety department with leaking the thing, teletransmission warning begins to report to the police this moment, the STREAMING structure can prevent that the medium from directly revealing to the atmosphere side this moment, therefore the characteristic equipment evacuation of class medium needs certain time, the time has been striven for to the evacuation before the overhaul of the equipments to the STREAMING structure, thereby environmental protection and operation and maintainer's safety have been guaranteed.
Claims (8)
1. The utility model provides an interior internal pressure and external flow external pressure combination formula bi-polar face shaft seal system which characterized in that: the auxiliary sealing ring for the auxiliary sealing ring is arranged between the auxiliary sealing movable ring seat and the auxiliary sealing ring for the auxiliary sealing ring, the auxiliary sealing ring for the auxiliary sealing fixed ring is arranged between the auxiliary sealing movable ring seat and the auxiliary sealing movable ring, the auxiliary sealing ring for the auxiliary sealing fixed ring is arranged between the auxiliary sealing movable ring seat and the shaft sleeve, and the auxiliary sealing movable ring is corresponding to the main sealing movable ring.
2. The combined internal flow pressure and external flow pressure double end face shaft seal system of claim 1, wherein: the shaft sleeve is externally provided with a gland, the inner side of the gland is provided with a main seal static ring, and a main seal static ring auxiliary sealing ring is arranged between the main seal static ring and the gland.
3. The combined internal flow pressure and external flow pressure double end face shaft seal system of claim 1, wherein: and a main seal movable ring auxiliary sealing ring and a main seal compensation element are arranged between the shaft sleeve and the gland.
4. The combined internal flow pressure and external flow pressure double end face shaft seal system of claim 1, wherein: the gland is provided with a gland sealing ring.
5. The combined internal flow pressure and external flow pressure double end face shaft seal system of claim 1, wherein: the shaft sleeve is provided with a shaft sleeve sealing ring.
6. The combined internal flow pressure and external flow pressure double end face shaft seal system of claim 1, wherein: the auxiliary seal static ring is arranged on the auxiliary seal movable ring seat.
7. The combined internal flow pressure and external flow pressure double end face shaft seal system of claim 1, wherein: and the auxiliary seal movable ring seat is provided with a transmission screw.
8. The combined internal flow pressure and external flow pressure double end face shaft seal system of claim 1, wherein: and the auxiliary sealing static ring and the main sealing static ring are provided with main and auxiliary sealing anti-rotation pins which are arranged on the two static rings for punching and fixing the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023083957.7U CN214118953U (en) | 2020-12-16 | 2020-12-16 | Internal flow internal pressure and external flow external pressure combined type double-end-face shaft seal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023083957.7U CN214118953U (en) | 2020-12-16 | 2020-12-16 | Internal flow internal pressure and external flow external pressure combined type double-end-face shaft seal system |
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| Publication Number | Publication Date |
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| CN214118953U true CN214118953U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023083957.7U Active CN214118953U (en) | 2020-12-16 | 2020-12-16 | Internal flow internal pressure and external flow external pressure combined type double-end-face shaft seal system |
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| CN (1) | CN214118953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944758A (en) * | 2021-12-02 | 2022-01-18 | 河南理工大学 | Hierarchical linkage rotary feeding sealing device |
-
2020
- 2020-12-16 CN CN202023083957.7U patent/CN214118953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944758A (en) * | 2021-12-02 | 2022-01-18 | 河南理工大学 | Hierarchical linkage rotary feeding sealing device |
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