CN201090428Y - Reciprocating high-pressure plunger pump sealing device - Google Patents
Reciprocating high-pressure plunger pump sealing device Download PDFInfo
- Publication number
- CN201090428Y CN201090428Y CNU2007200972136U CN200720097213U CN201090428Y CN 201090428 Y CN201090428 Y CN 201090428Y CN U2007200972136 U CNU2007200972136 U CN U2007200972136U CN 200720097213 U CN200720097213 U CN 200720097213U CN 201090428 Y CN201090428 Y CN 201090428Y
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- sealing
- ring
- support ring
- filler
- stuffing box
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- Expired - Fee Related
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Abstract
The utility model relates to a sealing device of reciprocation type high pressure piston pump, which is composed of a filler box, a guide ring, at least a compensation type sealing assembly and a contact type sealing member, wherein the guide ring, the compensation type sealing assembly and the contact type sealing member are arranged axially in the sealing cavity between the filler box and the piston, the compensation type sealing assembly is composed of a support ring, a sealing filler and two O-shaped sealing rings, wherein one O-shaped sealing ring is wrapped by the sealing filler and arranged between the support ring and the piston, the other O-shaped sealing ring is arranged between the filter box and the support ring, the contact type sealing member is composed of the support ring and the sealing filler, the sealing filler is arranged between the support ring and the piston. The utility model has the advantages that: the reciprocation type high pressure piston pump that adopts double combination and sealing has strong wear-resistant performance, and can adapt work condition of circulation water containing a large amount of impurities and have double protection, so that service life improved by approximately 10 times.
Description
(1) technical field
The utility model relates to a kind of seal arrangement, particularly a kind of reciprocating type high-pressure plunger pump sealing apparatus.
(2) background technique
In reciprocating type high-pressure plunger pump, the sealing of plunger is vital, generally to the plunger seal request is: 1) reliable, little, the long service life of amount of leakage of sealing; 2) friction, wearing and tearing are lacked, and consumed power is few; 3) satisfy the needs of fed sheet of a media and operating mode.The plunger seal of reciprocating type high-pressure plunger pump adopts jam type packing sealing or self sealing sealing usually, is direct contact seal, and selected filler is very high to fed sheet of a media and working condition requirement.Along with the continuous expansion of high pressure water jet application, high-pressure water descaling technology is extensively adopted in the de-scaling of steel mill, and the capital equipment of its application is reciprocating type high-pressure plunger pump.Because of descaling system adopts circulation, in the circulating water of secondary treatment, be mingled with a large amount of impurity, plunger will be brought in the Seal cage attached to the impurity of plunger surface in reciprocating process, increase the weight of the wearing and tearing of filler and plunger, and reduce working life greatly.Adopt the reciprocating type high-pressure plunger pump of conventional seals structure, because the low requirement that can't adapt to the de-scaling operating mode of the wear-resisting property of plunger packing.
(3) model utility content
The purpose of this utility model is at the problems referred to above, provide a kind of wear resistance strong, can adapt to the operating mode that contains a large amount of impurity in the circulating water, reciprocating type high-pressure plunger pump sealing apparatus with double seal.
The technical solution of the utility model:
A kind of reciprocating type high-pressure plunger pump sealing apparatus, it is characterized in that: be made up of stuffing box, guide ring, at least one compensation black box and a direct contact seal part, guide ring, compensation black box and direct contact seal part axially are arranged in order in the Seal cage between stuffing box and plunger; Compensation black box is made of support ring, stuffing box packing and two O-ring seals, and the sealed filler of one of them O-ring seals wraps up and between support ring and plunger, another O-ring seals is between stuffing box and support ring; The direct contact seal part is made of support ring and stuffing box packing, and stuffing box packing is between support ring and plunger.
Working principle of the present utility model: the hyperbaric chamber of reciprocating type high-pressure plunger pump mainly contains the position of two needs sealings, the first is by the gap that forms between support ring and the stuffing box, it two is plunger movement clearance when reciprocating, and the utility model is realized by two groups of compensation black boies.For the former, be by in the rectangle groove between stuffing box and support ring O-ring seals being set, reaching the purpose of sealing high pressure water by rising certainly of O RunddichtringO; For the latter, be by being wrapped in the O RunddichtringO in the stuffing box packing and being in by the state of plunger and support ring extruding, to-and-fro motion along with plunger, high pressure water is constantly brought in the enclosed cavity that forms between compensation black box and the plunger, and stuffing box packing is lived in the extruding all the time under the effect of hydraulic pressure of O RunddichtringO, to reach the effect of compensation.
Advantage of the present utility model: adopt the reciprocating type high-pressure plunger pump of dual combination seal have wear resistance strong, can adapt to the operating mode that contains a large amount of impurity in the circulating water and the effect of duplicate protection, and improve filler working life greatly.Sealing seals as first road, and major function is to strike off attached to impurity in the water of plunger surface, with the plunger in avoiding moving impurity is brought in the Seal cage; Filler is sealed into as second road can compensation Sealing, and filler can compensate its wear extent automatically by the structure of himself under the effect of hydraulic pressure, to reach the effect of sealing.
(4) description of drawings
Accompanying drawing: reciprocating type high-pressure plunger pump schematic diagram of sealing device.
Among the figure: 1. stuffing box 2. guide rings 3. stuffing box packing 4.O shape seal rings
5. stuffing box packing 6. support rings 7. support rings 8. stuffing box packing 9. plungers
(5) embodiment
Embodiment:
A kind of reciprocating type high-pressure plunger pump sealing apparatus, it is characterized in that: be made up of stuffing box 1, guide ring 2, the compensation black box of twice and a direct contact seal part, guide ring 2, two groups of compensation black boies and direct contact seal part axially are arranged in order in the Seal cage between stuffing box 1 and plunger 9; Compensation black box is made of support ring 6, stuffing box packing 3 and two O- ring seals 4,5, sealed fillers 3 parcels of O-ring seals 4 and between support ring 6 and plunger 9 wherein, and O-ring seals 5 is between stuffing box 1 and support ring 6; The direct contact seal part is made of support ring 7 and stuffing box packing 8, and stuffing box packing 8 is between support ring 7 and plunger 9.The manufactured materials of sealing device: stuffing box 1 is the 3Cr13 stainless steel, and guide ring 2 and support ring 6,7 are brass, and stuffing box packing 3,8 is a filled polytetrafluoroethylene, and O- ring seals 4,5 is a nitrile butadiene rubber.The sealing device is applied on the ceramic plunger that model is the reciprocating type high-pressure plunger pump of 3D3, but continuous operation 2400 hours under the de-scaling operating mode only is about 240 hours and adopt the conventional seals device that filler improves about 10 times working life.
Claims (1)
1. reciprocating type high-pressure plunger pump sealing apparatus, it is characterized in that: be made up of stuffing box, guide ring, at least one compensation black box and a direct contact seal part, guide ring, compensation black box and direct contact seal part axially are arranged in order in the Seal cage between stuffing box and plunger; Compensation black box is made of support ring, stuffing box packing and two O-ring seals, and the sealed filler of one of them O-ring seals wraps up and between support ring and plunger, another O-ring seals is between stuffing box and support ring; The direct contact seal part is made of support ring and stuffing box packing, and stuffing box packing is between support ring and plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200972136U CN201090428Y (en) | 2007-08-23 | 2007-08-23 | Reciprocating high-pressure plunger pump sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200972136U CN201090428Y (en) | 2007-08-23 | 2007-08-23 | Reciprocating high-pressure plunger pump sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090428Y true CN201090428Y (en) | 2008-07-23 |
Family
ID=39862189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200972136U Expired - Fee Related CN201090428Y (en) | 2007-08-23 | 2007-08-23 | Reciprocating high-pressure plunger pump sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090428Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620005A (en) * | 2012-04-13 | 2012-08-01 | 江苏泰伯铸造有限公司 | Low-operating torque and low-leakage floating ball valve |
| CN103732916A (en) * | 2011-08-02 | 2014-04-16 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Piston pump |
-
2007
- 2007-08-23 CN CNU2007200972136U patent/CN201090428Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103732916A (en) * | 2011-08-02 | 2014-04-16 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Piston pump |
| CN103732916B (en) * | 2011-08-02 | 2016-02-03 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Reciprocating pump |
| CN102620005A (en) * | 2012-04-13 | 2012-08-01 | 江苏泰伯铸造有限公司 | Low-operating torque and low-leakage floating ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20140823 |
|
| EXPY | Termination of patent right or utility model |