CN204327573U - A kind of New-type boiler feed water pump shaft seal overcoat - Google Patents
A kind of New-type boiler feed water pump shaft seal overcoat Download PDFInfo
- Publication number
- CN204327573U CN204327573U CN201420749510.4U CN201420749510U CN204327573U CN 204327573 U CN204327573 U CN 204327573U CN 201420749510 U CN201420749510 U CN 201420749510U CN 204327573 U CN204327573 U CN 204327573U
- Authority
- CN
- China
- Prior art keywords
- seal
- ring
- axle sleeve
- adpting flange
- shaft
- 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.)
- Expired - Fee Related
Links
Abstract
A kind of New-type boiler feed water pump shaft seal overcoat.It is made up of adpting flange, ring seal groove and axle sleeve.It is characterized in that: at the ring-like seal groove of sleeve outer circle processing twice, can install suitable seal ring or packing additional in ring seal groove, inner hole of shaft sleeve aperture 2mm larger than pump shaft footpath, can meet the gap of service condition.Axle sleeve is bumped into shaft seal chamber gently, and axle sleeve and shaft seal chamber have the interference of 0.03mm.Adopt welding manner axle sleeve and adpting flange to be connected together, adpting flange is fixed by bolt and the pump housing.The beneficial effects of the utility model are, can the solution pump class packing_seal leakage problem of simple and fast at the scene, and processing ease, the time is short, good sealing effect, meets user's Production requirement.
Description
Technical field
The utility model belongs to machinery industry, is specially adapted to the packing_seal of the DG220-64 × 10 type boiler feed pump that Chongqing Water Pump Factory produces.
Background technique
DG220-64 × 10 type boiler feed pump provides water source for 180T/H boiler, and it is the basis of boiler safety stable operation.This pump is high-lift, and large discharge designs, and what shaft seal adopted is 6 circle 22mm × 22mm packing_seals.Packing is roomy, and multi-level packing cannot firmly compress at all.Manufacturer's repeatedly guided maintenance at the scene, the packing changing polytype material also cannot thoroughly solve shaft sealing leakage problem.Shaft sealing leakage, steam enters bearing housing, and pollution lubricating oil, to axle, watt causes damage, simultaneously feed water pump decrease in efficiency, and feedwater flow and pressure are also affected.For this problem, design and produce this use New-type boiler feed water pump shaft seal overcoat, can the addressing the leakage concern of simple and fast at the scene, processing ease, the time is short, good sealing effect, meets user's Production requirement.
Summary of the invention
Shaft seal adopts multi-level large scale graphite packing_seal, cannot compress between packing, between packing and packing, there is larger gap, easily leak between packing and pump shaft.In order to address the leakage concern, the utility model provides a kind of New-type boiler feed water pump shaft seal overcoat, can the addressing the leakage concern of simple and fast at the scene, and processing ease, the time is short, good sealing effect, meets user's Production requirement.
The utility model solves the technological scheme that its technical problem adopts: mainly according to existing shaft seal cavity cell structure size, makes a kind of New-type boiler feed water pump of insert shaft seal overcoat, reduces the sectional area of shaft seal cavity, use small size packing.It is made up of adpting flange, ring seal groove and axle sleeve.It is characterized in that: at the ring-like seal groove of sleeve outer circle processing twice, can install suitable seal ring or packing additional in ring seal groove, inner hole of shaft sleeve aperture 2mm larger than pump shaft footpath, can meet the gap of service condition.Axle sleeve is bumped into shaft seal chamber gently, and axle sleeve and shaft seal chamber have the interference of 0.03mm.Adopt welding manner axle sleeve and adpting flange to be connected together, adpting flange is fixed by bolt and the pump housing.
The beneficial effects of the utility model are, can the solution pump class packing_seal leakage problem of simple and fast at the scene, and processing ease, the time is short, good sealing effect, meets user's Production requirement.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the sectional drawing of shaft seal overcoat.
In Fig. 1: 1. adpting flange, 2. ring seal groove, 3. axle sleeve.
Embodiment
In example shown in the figure: it is made up of (1) adpting flange, (2) ring seal groove and (3) axle sleeve.During use, first at (3) sleeve outer circle processing twice (2) ring seal groove, suitable seal ring or packing are loaded in (2) ring seal groove, then (3) axle sleeve is bumped into shaft seal chamber gently.Then adopt welding manner (1) adpting flange and (3) axle sleeve to be connected together, finally with bolt, (1) adpting flange and the pump housing are fixed.
Claims (1)
1. a New-type boiler feed water pump shaft seal overcoat, it is made up of adpting flange, ring seal groove and axle sleeve, it is characterized in that: at the ring-like seal groove of sleeve outer circle processing twice, suitable seal ring or packing can be installed additional in ring seal groove, axle sleeve is bumped into shaft seal chamber gently, adopt welding manner axle sleeve and adpting flange to be connected together, adpting flange is fixed by bolt and the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749510.4U CN204327573U (en) | 2014-12-03 | 2014-12-03 | A kind of New-type boiler feed water pump shaft seal overcoat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749510.4U CN204327573U (en) | 2014-12-03 | 2014-12-03 | A kind of New-type boiler feed water pump shaft seal overcoat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327573U true CN204327573U (en) | 2015-05-13 |
Family
ID=53163940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420749510.4U Expired - Fee Related CN204327573U (en) | 2014-12-03 | 2014-12-03 | A kind of New-type boiler feed water pump shaft seal overcoat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327573U (en) |
-
2014
- 2014-12-03 CN CN201420749510.4U patent/CN204327573U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201751587U (en) | Sealing device for centrifugal pump impeller wear ring | |
| CN202531472U (en) | Single-stage double-suction axially split pump | |
| CN203822692U (en) | Axial packing seal device | |
| CN204327573U (en) | A kind of New-type boiler feed water pump shaft seal overcoat | |
| CN205207183U (en) | Roots blower collection dress formula mechanical seal | |
| CN205243929U (en) | Desulfurization pump double mechanical seal device | |
| CN204692119U (en) | Screw vacuum pump composite shaft seal structure | |
| CN204164414U (en) | The soft sealing ball valve that seal ring barb is fixing | |
| CN205190762U (en) | Novel poor steam valve of zero -pressure | |
| CN203374482U (en) | Framework sealing assembly | |
| CN202531844U (en) | Bottom stirring corrugated pipe-type mechanical seal with water seal structure | |
| CN203230842U (en) | Novel stuffing box easy to disassemble and assemble | |
| CN203655612U (en) | Pump cover | |
| CN205047848U (en) | Air film seal spring formula structure for cryogenic pump | |
| CN204572544U (en) | For containing the counnter attack press pump dry gas seals in suspended solid medium | |
| CN204784947U (en) | Leakage -proof valve | |
| CN204942835U (en) | A kind of high pressure partial pressure type single direction rotation joint | |
| CN204942086U (en) | A kind of centrifugal pump specialized high-speed swivel joint | |
| CN204061911U (en) | Corrosion protection fastening-pressing type mechanical seal device | |
| CN202252315U (en) | Self-operated valve rod sealing structure | |
| CN203809291U (en) | Sealing structure for eliminating oil leakage at end surface of gear pump | |
| CN202673759U (en) | Water pump shaft end sealing device | |
| CN204386874U (en) | Tandem type two-stage mechanical seal device | |
| CN204299929U (en) | Inlet high pressure pump machine seals axle sleeve | |
| CN204025140U (en) | The single-stage double-suction that improves sealing is opened energy-saving pump in axially |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20161203 |