CN104500436A - Pump shaft sealing structure of high-temperature acid pump - Google Patents
Pump shaft sealing structure of high-temperature acid pump Download PDFInfo
- Publication number
- CN104500436A CN104500436A CN201410718752.1A CN201410718752A CN104500436A CN 104500436 A CN104500436 A CN 104500436A CN 201410718752 A CN201410718752 A CN 201410718752A CN 104500436 A CN104500436 A CN 104500436A
- Authority
- CN
- China
- Prior art keywords
- pump shaft
- pump
- ring
- sealing structure
- rear end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/049—Roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/30—Retaining components in desired mutual position
- F05D2260/31—Retaining bolts or nuts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a pump shaft sealing structure of a high-temperature acid pump. The pump shaft sealing structure comprises a movable ring mounted in an impeller, wherein the movable ring is in sealed contact with a static ring, the static ring is mounted in a pump cover through a static ring seat, and a spring is arranged art the rear end of the static ring in a pressing way; the front end of a bracket is mounted on a pump shaft through a roller bearing; a lip sealing plate positioned on the front side of the roller bearing is arranged on the bracket. The pump shaft sealing structure has the benefits that the structural design is reasonable, the sealing structure is further perfected, the temperature resistance and the corrosion resistance are high, and the service life is obviously prolonged.
Description
Technical field
The present invention relates to industrial pump field, specifically belong to a kind of pump shaft seal structure of high-temperature acid pump.
Background technique
In prior art, the industrial department such as chemical industry, metallurgy, electric power, papermaking, food, pharmacy, synthetic fiber for carry corrosive or do not allow pollute medium.Acid-proof pump product carries all kinds of Korrosionsmedium under being applicable to-20 DEG C ~+120 DEG C temperature conditions, its overcurrent part all adopts plastic alloy (multiple material such as teflon and perfluoroethylene-propylene) through rational formula, mold pressing, to process, the advantage of the multiple plastics of acid-proof pump collection, there is the corrosion resistant performance of extra-heavy, and it is high to have mechanical strength, not aging, without advantages such as toxin decomposition, be the ideal equipment of various strong, the weak acid of conveying.
For anti-corrosion property at high temperature medium transport pump, need to improve high temperature resistant, decay resistance further.
Summary of the invention
The object of this invention is to provide a kind of pump shaft seal structure of high-temperature acid pump, reasonable in design, the sealing configuration of pump shaft is perfect further, and possess high temperature resistant and decay resistance, working life obviously extends.
Technological scheme of the present invention is as follows:
A kind of pump shaft seal structure of high-temperature acid pump, include the rotating ring be installed in impeller, ring seal contact has stationary ring, stationary ring is installed in pump cover by stationary seat, after stationary ring, side pressure is equipped with spring, bracket front end is installed on pump shaft by roller bearing, with the lip shrouding be positioned on front side of roller bearing on bracket, seal groove is had in lip shrouding, the outside framework oil seal being pressed on roller bearing front-end face is provided with in seal groove, pallet rear end is provided with bearing housing, two angular contact ball bearings are combined with in bearing housing, oil sealing is provided with between bearing housing rear end and pump shaft, before two angular contact ball bearings, rear side is combined with back-up ring, bearing gasket, bearing gasket rear end is pressed with the round nut be screwed together on pump shaft.
Described pump shaft is provided with locking nut, and locking nut is pressed on impeller rear end.
Impeller of the present invention is provided with rotating ring, ring seal contact has stationary ring, stationary ring is installed in pump cover by stationary seat, after stationary ring, side pressure is equipped with spring, be sealed and matched by rotating ring and stationary ring and realize the sealing of the pump housing, reasonable in design, the sealing configuration of pump shaft is perfect further, possess high temperature resistant and decay resistance, working life obviously extends.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
See accompanying drawing, a kind of pump shaft seal structure of high-temperature acid pump, include the rotating ring 2 be installed in impeller 1, rotating ring 2 seals contact stationary ring 3, stationary ring 3 is installed in pump cover 5 by stationary seat 4, after stationary ring 3, side pressure is equipped with spring 6, bracket 7 front end is installed on pump shaft 9 by roller bearing 8, with the lip shrouding 10 be positioned on front side of roller bearing 8 on bracket 7, seal groove 11 is had in lip shrouding 10, the outside framework oil seal 12 being pressed on roller bearing 8 front-end face is provided with in seal groove 11, bracket 7 rear end is provided with bearing housing 13, two angular contact ball bearings 14 are combined with in bearing housing 13, oil sealing 15 is provided with between bearing housing 13 rear end and pump shaft, before two angular contact ball bearings, rear side is combined with back-up ring, bearing gasket, bearing gasket rear end is pressed with the round nut 16 be screwed together on pump shaft, pump shaft 9 is provided with locking nut 17, locking nut 17 is pressed on impeller rear end.
Claims (2)
1. the pump shaft seal structure of a high-temperature acid pump, it is characterized in that, include the rotating ring be installed in impeller, ring seal contact has stationary ring, stationary ring is installed in pump cover by stationary seat, after stationary ring, side pressure is equipped with spring, bracket front end is installed on pump shaft by roller bearing, with the lip shrouding be positioned on front side of roller bearing on bracket, seal groove is had in lip shrouding, the outside framework oil seal being pressed on roller bearing front-end face is provided with in seal groove, pallet rear end is provided with bearing housing, two angular contact ball bearings are combined with in bearing housing, oil sealing is provided with between bearing housing rear end and pump shaft, before two angular contact ball bearings, rear side is combined with back-up ring, bearing gasket, bearing gasket rear end is pressed with the round nut be screwed together on pump shaft.
2., according to the pump shaft seal structure of the said a kind of high-temperature acid pump of claim 1, it is characterized in that, described pump shaft is provided with locking nut, and locking nut is pressed on impeller rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718752.1A CN104500436A (en) | 2014-12-01 | 2014-12-01 | Pump shaft sealing structure of high-temperature acid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718752.1A CN104500436A (en) | 2014-12-01 | 2014-12-01 | Pump shaft sealing structure of high-temperature acid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500436A true CN104500436A (en) | 2015-04-08 |
Family
ID=52941871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410718752.1A Pending CN104500436A (en) | 2014-12-01 | 2014-12-01 | Pump shaft sealing structure of high-temperature acid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500436A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0491393A (en) * | 1990-08-03 | 1992-03-24 | Daicel Chem Ind Ltd | Single mechanical seal type pump |
| CN2937570Y (en) * | 2006-03-26 | 2007-08-22 | 巢国平 | Steel plastic compound corrosion risistance mixed flow pump |
| CN200940597Y (en) * | 2006-08-16 | 2007-08-29 | 季裕成 | Novel thin acid pump |
| CN203285718U (en) * | 2013-05-27 | 2013-11-13 | 江苏省宜兴非金属化工机械厂有限公司 | Suspension type pump bearing seat installation structure |
| CN203627246U (en) * | 2013-12-24 | 2014-06-04 | 江苏科曼机械制造有限公司 | Novel acid pickling pump |
-
2014
- 2014-12-01 CN CN201410718752.1A patent/CN104500436A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0491393A (en) * | 1990-08-03 | 1992-03-24 | Daicel Chem Ind Ltd | Single mechanical seal type pump |
| CN2937570Y (en) * | 2006-03-26 | 2007-08-22 | 巢国平 | Steel plastic compound corrosion risistance mixed flow pump |
| CN200940597Y (en) * | 2006-08-16 | 2007-08-29 | 季裕成 | Novel thin acid pump |
| CN203285718U (en) * | 2013-05-27 | 2013-11-13 | 江苏省宜兴非金属化工机械厂有限公司 | Suspension type pump bearing seat installation structure |
| CN203627246U (en) * | 2013-12-24 | 2014-06-04 | 江苏科曼机械制造有限公司 | Novel acid pickling pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150408 |