CN202545216U - Multi-spring rotary mechanical sealing device for high-pressure hot water pump - Google Patents
Multi-spring rotary mechanical sealing device for high-pressure hot water pump Download PDFInfo
- Publication number
- CN202545216U CN202545216U CN201220043370XU CN201220043370U CN202545216U CN 202545216 U CN202545216 U CN 202545216U CN 201220043370X U CN201220043370X U CN 201220043370XU CN 201220043370 U CN201220043370 U CN 201220043370U CN 202545216 U CN202545216 U CN 202545216U
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- ring
- sealing
- seal
- gland
- hot water
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Abstract
The utility model belongs to a sealing device at an end of a fluid mechanical shaft and especially relates to a multi-spring rotary mechanical sealing device for a high-pressure hot water pump and a use method thereof. According to the technical scheme, the multi-spring rotary mechanical sealing device comprises an integrated structure which is composed of a shaft sleeve, a gland and a sealing cavity, wherein a multi-spring single-end-face sealing structure is arranged in the sealing cavity; auxiliary seals are arranged on contact surfaces between a moveable ring and the shaft sleeve and between a static ring and the gland; a throttling ring is arranged on the contact surface of the gland and the shaft sleeve outside the seal; a quenching and liquid discharging interface is arranged between the throttling ring and the static ring; a pumping ring is arranged on the side of the moveable ring of the sealing cavity; and the pumping ring is connected with a hot water inlet and a hot water outlet. Compared with the prior art, the multi-spring rotary mechanical sealing device has the advantages that the pumping ring and an auxiliary system are used together, so that an industrial medium is prevented from being polluted, the heat on a sealing end face and the heat absorbed by a pump cavity are taken away by a heat exchanger of the auxiliary system, the temperature of the sealing cavity is reduced to ultralow temperature, the sealing life is prolonged and the whole mounting of the seals is accurate, fast and convenient.
Description
Technical field
The invention belongs to the seal arrangement of fluid machinery axle head, particularly relate to a kind of hot, high pressure water pump with many spring rotating machanical seals device and method for using thereof.
Background technique
At present, high-temperature high-pressure hot-water circulating pump is widely used in metallurgy, electric power, light textile, oil, chemical industry, rubber, heating and adopts in the system field such as heat the liquid medium of carrying HTHP hot water and being similar to water.High-temperature-hot-water is prone to produce vaporization, causes that the mechanical seal end surface liquid film destroys, and makes end face be in half-dried or dry condition; Be prone to cause sealing surface wear; Produce and lost efficacy, reduce the life-span, high-pressure water heating by reason of heavy pressure; Increase the design difficulty of sealing system, traditional sealing system structure can not satisfy the user demand of high-temperature high-pressure hot-water circulating pump far away.
Provided a kind of sealing system device in the design and research of " universal machine " (supplementary issue in 2007) described high-temperature high-pressure hot-water circulating pump seal arrangement of P60.Sealing system device is made up of one-level floating seal, combination seal, packing seal and auxiliary flushing cooling system, and they are used reliability, the Security that improves sealing system greatly.But packing seal is leaked seriously in practical application, and often filler is changed in termination of pumping, and labor intensity is big, and materials consumption is also bigger.
Provided a kind of tandem mechanical seal in " mechanical facilities of irrigation and drainage " the 25th volume the 2nd phase described seal for high pressure hot water circulating pump designing and calculating of (in March, 2007) P14 and the transformation, the refractory metal bellows mechanical seal is adopted in the media end sealing; Secondary seal adopts ordinary construction mechanical seal, and Seal cage is washed cooling, adopts API Plan52 (nitrogen pressurizes) sealing flow process to be configuration outward; Though under high-temperature and high-pressure conditions, can use, the effect of using not is very good, and maintenance cost is high; Expensive, the life-span is short.
Summary of the invention
The object of the invention is intended to above-mentioned technological deficiency, and the hot, high pressure water pump that a kind of simple in structure, easy for installation, good airproof performance is provided is with many spring rotating machanical seals device and method for using thereof.
Its technological scheme is: comprise the unit loading type structure that axle sleeve, gland and Seal cage are formed; Be many springs mechanical single seal structure in the Seal cage wherein; The surface of contact of rotating ring and axle sleeve, stationary ring and gland is provided with auxiliary seal; The surface of contact of sealing outside gland and axle sleeve is provided with restrictor ring, is provided with chilling and discharge opeing interface between restrictor ring and the stationary ring; Seal cage rotating ring side is provided with the pumping ring, and the pumping ring is connected with the hot water inlet/outlet.
Auxiliary seal on said rotating ring and the axle sleeve surface of contact is the tetrafluoro baffle ring, and the auxiliary seal on the surface of contact of said stationary ring and gland is a perfluor ether O shape circle; Described restrictor ring is the teflon restrictor ring.What auxiliary seal adopted perfluor ether O shape circle and tetrafluoro baffle ring is used good sealing effect.
The hot, high pressure water pump is used with many spring rotating machanical seals device and sealing auxiliary system, and auxiliary system comprises medium circulation rinse-system that is communicated with the hot water inlet/outlet and the chilling rinse-system that is communicated with chilling, discharge opeing interface.
Described medium circulation rinse-system is an API682 Plan23 medium circulation rinse-system, and described chilling rinse-system is Plan 62 chilling rinse-systems.
Compared with prior art; The present invention is used through pumping ring and auxiliary system; It is contaminated to demonstrate,prove processing medium, takes away seal face heat and pump chamber absorption heat through the auxiliary system heat exchanger simultaneously, and Seal cage can drop to very low temperature; Prolong sealing life, the sealing integral installation is accurate, convenient.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the local enlarged diagram of Fig. 1;
Fig. 3 be seal arrangement shown in Figure 1 and with the schematic representation that is connected of auxiliary system.
Among the figure: 1. axle sleeve, 2. spring seat, 3. throw-out collar, 4. rotating ring O shape circle; 5. tetrafluoro baffle ring, 6. pumping ring, 7. rotating ring, 8. stationary ring; 9. stationary ring O shape circle, 10. gland, 11. restrictor rings, 12. collection loads; Q, cold water (chilling) import, D, discharge opeing outlet, FO, circulating hot water outlet, FI, circulating hot water import.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done further explanation.
With reference to figure 1-3; A kind of pressure hot water pump is with many spring rotating machanical seals device: comprise the unit loading type structure that axle sleeve 1, gland 10 and Seal cage are formed; In the Seal cage is many springs mechanical single seal structure; Mainly form by spring seat 2, throw-out collar 3, stationary ring 8, rotating ring 7 and auxiliary seal; Wherein rotating ring 7 is a tetrafluoro baffle ring 5 with the auxiliary seal that axle sleeve 1 surface of contact is provided with, and sealing outside gland 10 is provided with teflon restrictor ring 11 with the surface of contact of axle sleeve 1, is provided with chilling and discharge opeing interface between restrictor ring 11 and the stationary ring 8.Seal cage rotating ring 7 sides are provided with pumping ring 6, and pumping ring 6 is connected with the hot water inlet/outlet.Rotating ring and stationary ring O shape circle 4,9 are perfluor ether O shape circle.
Referring to Fig. 3, above-mentioned seal arrangement and auxiliary system cooperating, working principle is following: the sealing auxiliary system is selected being used of flushing of API682 Plan23 medium circulation and the flushing of Plan 62 chillings for use.Through the pumping ring hot water in the chamber is pumped into the heat exchanger from loop exit FO in the Seal cage, through after the heat exchange, water temperature is reduced to below 70 ℃, gets back to sealing part in the Seal cage from loop head FI again, and circulation makes sealing be in low temperature environment all the time repeatedly.Be provided with chilling and discharge opeing interface Q, D outside the sealing, stationary ring and end face further cooled off, reduce the face deformation that Yin Wendu causes through chilling.Being used of mechanical seal and auxiliary system, better controlled the Seal cage temperature rise, improved working life of sealing greatly, prolonged the continuous operation time of equipment, reduced the human and material resources that the sealing maintenance caused and the waste of resource.
The present invention can adopt industries such as heat adaptable across metallurgy, electric power, light textile, oil, chemical industry, rubber, heating, and working life was above 2 years.
Claims (2)
1. a hot, high pressure water pump is with many spring rotating machanical seals device; Comprise the unit loading type structure that axle sleeve, gland and Seal cage are formed; It is characterized in that, be many springs mechanical single seal structure in the Seal cage, and the surface of contact of rotating ring and axle sleeve, stationary ring and gland is provided with auxiliary seal; The surface of contact of sealing outside gland and axle sleeve is provided with restrictor ring, is provided with chilling and discharge opeing interface between restrictor ring and the stationary ring; Seal cage rotating ring side is provided with the pumping ring, and the pumping ring is connected with the hot water inlet/outlet.
2. hot, high pressure water pump according to claim 1 is with many spring rotating machanical seals device; It is characterized in that; Auxiliary seal on said rotating ring and the axle sleeve surface of contact is the tetrafluoro baffle ring, and the auxiliary seal on the surface of contact of said stationary ring and gland is a perfluor ether O shape circle; Described restrictor ring is the teflon restrictor ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220043370XU CN202545216U (en) | 2012-02-10 | 2012-02-10 | Multi-spring rotary mechanical sealing device for high-pressure hot water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220043370XU CN202545216U (en) | 2012-02-10 | 2012-02-10 | Multi-spring rotary mechanical sealing device for high-pressure hot water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545216U true CN202545216U (en) | 2012-11-21 |
Family
ID=47165859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220043370XU Expired - Lifetime CN202545216U (en) | 2012-02-10 | 2012-02-10 | Multi-spring rotary mechanical sealing device for high-pressure hot water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545216U (en) |
-
2012
- 2012-02-10 CN CN201220043370XU patent/CN202545216U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |