CN105987005A - Leakage-prevention type centrifugal pump - Google Patents
Leakage-prevention type centrifugal pump Download PDFInfo
- Publication number
- CN105987005A CN105987005A CN201510964444.1A CN201510964444A CN105987005A CN 105987005 A CN105987005 A CN 105987005A CN 201510964444 A CN201510964444 A CN 201510964444A CN 105987005 A CN105987005 A CN 105987005A
- Authority
- CN
- China
- Prior art keywords
- pump
- pump cover
- cavity
- transmission shaft
- leakage
- 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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
-
- 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
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 leakage-prevention type centrifugal pump. The leakage-prevention type centrifugal pump comprises a pump shell and is characterized in that a water inlet is formed in the left end of the pump shell, a water outlet is formed in the top of the pump shell, a cavity is formed in the right end face of the pump shell, an impeller is rotatably mounted in the cavity, a pump cover is connected to the end face of the cavity, the impeller is fixedly connected with a transmission shaft, the outer wall of the transmission shaft is sleeved with a shaft sleeve, one end of the transmission shaft penetrates the pump cover, a sleeve is arranged at the right end of the pump cover, a sealing cavity is formed in the inner wall of the sleeve, and the sealing cavity is communicated with the exterior through a channel formed in the pump cover. The centrifugal pump is good in sealing performance, and the pressure intensity of padding in the sealing cavity can be adjusted.
Description
Technical field
The present invention relates to a kind of centrifugal pump, a kind of leakage-preventing formula centrifugal pump.
Background technology
Centrifugal pump utilizes impeller to rotate and make water generation centrifugal motion carry out work.Water pump is before activation, it is necessary to is full of water in making pump case and suction hose, then starts motor, make pump shaft impeller and water do high speed rotary motion, water generation centrifugal motion, be thrown toward impeller outer edge, through the setting-out pipeline of the runner inflow water pump of volute pump case.
In prior art, due to good airproof performance, centrifugal pump easily produces leakage phenomenon, affects production safety.
Summary of the invention
It is an object of the present invention to provide a kind of good airproof performance, the filler pressure in annular seal space can have been adjusted, prevent the leakage-preventing formula centrifugal pump revealed.
The present invention solve technical problem provide following scheme:
A kind of leakage-preventing formula centrifugal pump, including pump case, it is characterized in that: the left side of described pump case is provided with water inlet, top is provided with outlet, described pump case right side is provided with cavity, it is rotatablely equipped with impeller in described cavity, connect on the end face of described cavity and have pump cover, described impeller is fixing connects power transmission shaft, it is cased with axle sleeve on the outer wall of described power transmission shaft, one end of described power transmission shaft passes pump cover, the right-hand member of described pump cover is provided with sleeve, the inwall of described sleeve is provided with annular seal space, described annular seal space is by being positioned at passage and the ft connection of pump cover, the upper end oral area of described passage is provided with airtight and watertight padding and adds mouth, it is provided with lightening hole in described pump cover, the right-hand member of described pump cover connects end cover.
The lower end sidewall of described annular seal space is provided with relief hole.
The present invention is provided with water inlet in the left side of pump case, it is provided with outlet at top, it is provided with cavity in the right side of the pump housing, impeller is installed in cavity, it is installed with power transmission shaft at the center of impeller, it is cased with axle sleeve on the outer wall of power transmission shaft, and between axle sleeve and pump cover, it is provided with annular seal space, and annular seal space passes through outside the channel connection on pump cover sidewall, oral area at passage is provided with airtight and watertight padding and adds mouth, lightening hole it is provided with in pump cover, effectively reduce the own wt of pump, and it is provided with relief hole in the lower end of annular seal space, so when the tension of the airtight and watertight padding pressure in annular seal space, generate heat when causing axle to rotate, that is accomplished by pressure release and adjusts in time, guarantee the work efficiency of pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
See accompanying drawing, a kind of leakage-preventing formula centrifugal pump, including pump case 1, the left side of described pump case 1 is provided with water inlet 2, top is provided with outlet 3, described pump case 1 right side is provided with cavity 4, it is rotatablely equipped with impeller 5 in described cavity 4, connect on the end face of described cavity 4 and have pump cover 6, described impeller 5 is fixing connects power transmission shaft 7, it is cased with axle sleeve 15 on the outer wall of described power transmission shaft 7, one end of described power transmission shaft 7 passes pump cover 6, the right-hand member of described pump cover 6 is provided with sleeve 8, the inwall of described sleeve 8 is provided with annular seal space 9, described annular seal space 9 is by being positioned at passage 10 and the ft connection of pump cover 6, the upper end oral area of described passage 10 is provided with airtight and watertight padding and adds mouth 11, it is provided with lightening hole 12 in described pump cover 6, the right-hand member of described pump cover 6 connects end cover 13.
The lower end sidewall of described annular seal space 9 is provided with relief hole 14.
Claims (2)
1. a leakage-preventing formula centrifugal pump, including pump case, it is characterized in that: the left side of described pump case is provided with water inlet, top is provided with outlet, described pump case right side is provided with cavity, it is rotatablely equipped with impeller in described cavity, connect on the end face of described cavity and have pump cover, described impeller is fixing connects power transmission shaft, it is cased with axle sleeve on the outer wall of described power transmission shaft, one end of described power transmission shaft passes pump cover, the right-hand member of described pump cover is provided with sleeve, the inwall of described sleeve is provided with annular seal space, described annular seal space is by being positioned at passage and the ft connection of pump cover, the upper end oral area of described passage is provided with airtight and watertight padding and adds mouth, it is provided with lightening hole in described pump cover, the right-hand member of described pump cover connects end cover.
The most leakage-preventing formula centrifugal pump, it is characterised in that: the lower end sidewall of described annular seal space is provided with relief hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964444.1A CN105987005A (en) | 2015-12-18 | 2015-12-18 | Leakage-prevention type centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964444.1A CN105987005A (en) | 2015-12-18 | 2015-12-18 | Leakage-prevention type centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105987005A true CN105987005A (en) | 2016-10-05 |
Family
ID=57040630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510964444.1A Pending CN105987005A (en) | 2015-12-18 | 2015-12-18 | Leakage-prevention type centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105987005A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340133A (en) * | 2018-12-06 | 2019-02-15 | 无锡市海星船舶动力有限公司 | With the centrifugal water pump for automatically controlling anti-dry tap function |
| CN114439770A (en) * | 2021-12-20 | 2022-05-06 | 陕西航天动力高科技股份有限公司 | Compact marine water cannon booster centrifugal pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4224008A (en) * | 1978-09-05 | 1980-09-23 | Haentjens Walter D | Volute slurry pump and throttle bushing therefor |
| CN2750077Y (en) * | 2004-12-01 | 2006-01-04 | 王庆锋 | Melting pump |
| CN102705259A (en) * | 2012-05-25 | 2012-10-03 | 南京长江涂料有限公司 | Filler sealing device |
| CN202991517U (en) * | 2012-12-18 | 2013-06-12 | 新乡市万鑫泵业有限公司 | A feeding and discharging device for a biogas digester |
| CN203175986U (en) * | 2013-02-25 | 2013-09-04 | 昆明嘉和科技股份有限公司 | Petrochemical pump cover |
| CN204591770U (en) * | 2015-03-24 | 2015-08-26 | 自贡市红旗泵业密封件制造有限公司 | The stuffing seal of pump shaft |
-
2015
- 2015-12-18 CN CN201510964444.1A patent/CN105987005A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4224008A (en) * | 1978-09-05 | 1980-09-23 | Haentjens Walter D | Volute slurry pump and throttle bushing therefor |
| CN2750077Y (en) * | 2004-12-01 | 2006-01-04 | 王庆锋 | Melting pump |
| CN102705259A (en) * | 2012-05-25 | 2012-10-03 | 南京长江涂料有限公司 | Filler sealing device |
| CN202991517U (en) * | 2012-12-18 | 2013-06-12 | 新乡市万鑫泵业有限公司 | A feeding and discharging device for a biogas digester |
| CN203175986U (en) * | 2013-02-25 | 2013-09-04 | 昆明嘉和科技股份有限公司 | Petrochemical pump cover |
| CN204591770U (en) * | 2015-03-24 | 2015-08-26 | 自贡市红旗泵业密封件制造有限公司 | The stuffing seal of pump shaft |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340133A (en) * | 2018-12-06 | 2019-02-15 | 无锡市海星船舶动力有限公司 | With the centrifugal water pump for automatically controlling anti-dry tap function |
| CN114439770A (en) * | 2021-12-20 | 2022-05-06 | 陕西航天动力高科技股份有限公司 | Compact marine water cannon booster centrifugal pump |
| CN114439770B (en) * | 2021-12-20 | 2023-09-12 | 陕西航天动力高科技股份有限公司 | Compact marine water cannon booster centrifugal 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 |
Application publication date: 20161005 |
|
| RJ01 | Rejection of invention patent application after publication |