CN102927056A - Centrifugal pump cover - Google Patents
Centrifugal pump cover Download PDFInfo
- Publication number
- CN102927056A CN102927056A CN2012104993870A CN201210499387A CN102927056A CN 102927056 A CN102927056 A CN 102927056A CN 2012104993870 A CN2012104993870 A CN 2012104993870A CN 201210499387 A CN201210499387 A CN 201210499387A CN 102927056 A CN102927056 A CN 102927056A
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- China
- Prior art keywords
- mechanical seal
- centrifugal pump
- pump cover
- pump
- cover
- 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.)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a centrifugal pump cover. The centrifugal pump cover comprises a central through hole in the pump cover, wherein a mechanical seal chamber in the shape of a horn mouth and connected with the central through hole is arranged on one side, facing a centrifugal pump body, of the central through hole; and the large end of the mechanical seal chamber is positioned on one side of the centrifugal pump body. According to the centrifugal pump cover, the mechanical seal chamber is in the shape of a horn mouth, so that the space of the mechanical seal chamber is increased; once particles are contained in the medium when the mechanical seal is used, the friction between the particles and a mechanical seal is difficultly generated, and the mechanical seal cannot be damaged; and furthermore, the flushing water in the pump body can easily flow into the mechanical seal chamber to cool and lubricate the mechanical seal, so that a device for guiding the water out from an outlet of the pump for flushing can be saved, and as a result, the cost is saved, and the centrifugal pump cover can be simply and conveniently mounted.
Description
Technical field
The present invention relates to centrifugal pump, specifically a kind of centrifugal pump cover.
Background technique
Horizontal single-stage centrifugal pump as shown in Figure 1, comprise the pump housing 1, impeller 2, pump cover 3, machine sealed cover 4, suspension 5 and axle 6, pump cover 3 is fixed on a side of the pump housing 1, form the pump chamber that impeller 2 is installed between pump cover 3 and the pump housing 1, suspension 5 is fixed on a side of pump cover 3, axle 6 is bearing in the suspension 5 by bearing and an end of axle 6 stretches in the pump chamber, impeller 2 is arranged in the pump chamber of the pump housing 1 and is fixed on the end of axle 6, be provided with the machine sealing chamber 7 that mechanical seal is installed between pump cover 3 and the axle 6, the outside of pump cover 3 is equipped with the machine sealed cover 4 of positioning mechanical sealing.
The machine sealing chamber 7 of above-mentioned centrifugal pump cover 3 is cylindrical, and the space is less, if when containing particulate matter in the medium in use, easily cause the friction of particulate matter and mechanical seal, causes the damage of mechanical seal, and centrifugal pump is leaked; In addition, for cooling and lubrication mechanical seal, also between the outlet of the pump housing 1 and machine sealed cover 4, Rinsing unit is installed, wash mechanical seal from outlet diversion to the machine sealed cover 4 of the pump housing 1, this structure has not only increased the manufacture cost of centrifugal pump, and installs loaded down with trivial details.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of centrifugal pump cover that can protect mechanical seal is provided.
According to technological scheme of the present invention: a kind of centrifugal pump cover, comprise the central through bore that is arranged on the described pump cover, described central through bore is provided with the machine sealing chamber that links to each other with described central through bore towards a side of centrifugal pump body, described machine sealing chamber is toroidal, and the large end of described machine sealing chamber is positioned at a side of described centrifugal pump body.
The cone angle of described machine sealing chamber is 30 °.
Technique effect of the present invention is: the machine sealing chamber among the present invention is toroidal, strengthened the space of machine sealing chamber, if in use contain particulate matter in the medium, also be not easy to occur the friction between particulate matter and the mechanical seal, can not cause the infringement of mechanical seal; In addition, the sparge water of self can be easy to enter in the machine sealing chamber in the pump housing, and cooling and lubricating mechanical seal so just can be saved from the device of pump discharge diversion flushing, has not only saved cost, but also has made installation easier.
Description of drawings
Fig. 1 is the structural representation of centrifugal pump of the prior art.
Fig. 2 is the structural representation that centrifugal pump of the present invention is installed.
Fig. 3 is structure cross-sectional schematic of the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
Among Fig. 1～Fig. 3, comprise the pump housing 1, impeller 2, pump cover 3, machine sealed cover 4, suspension 5, axle 6, machine sealing chamber 7, central through bore 8 etc.
As shown in Figure 2, it is a kind of centrifugal pump of the present invention that is equipped with, comprise the pump housing 1, impeller 2, pump cover 3, machine sealed cover 4, suspension 5 and axle 6, pump cover 3 is fixed on a side of the pump housing 1, form the pump chamber that impeller 2 is installed between pump cover 3 and the pump housing 1, suspension 5 is fixed on a side of pump cover 3, axle 6 is bearing in the suspension 5 by bearing and an end of axle 6 stretches in the pump chamber, impeller 2 is arranged in the pump chamber of the pump housing 1 and is fixed on the end of axle 6, be provided with the machine sealing chamber 7 that mechanical seal is installed between pump cover 3 and the axle 6, the outside of pump cover 3 is equipped with the machine sealed cover 4 of positioning mechanical sealing.
As shown in Figure 3, pump cover 3 in the above-mentioned centrifugal pump, comprise the central through bore 8 that is arranged on the pump cover 3, be provided with the machine sealing chamber 7 that links to each other with central through bore 8 at central through bore 8 towards a side of centrifugal pump body 1, this machine sealing chamber 7 is toroidal, and the large end of machine sealing chamber 7 is positioned at a side of centrifugal pump body 1.The cone angle of machine sealing chamber 7 is preferably 30 °.
Machine sealing chamber 7 among the present invention is toroidal, has strengthened the space of machine sealing chamber 7, if in use contain particulate matter in the medium, also is not easy to occur the friction between particulate matter and the mechanical seal, can not cause the infringement of mechanical seal; In addition, the sparge water of self can be easy to enter in the machine sealing chamber 7 in the pump housing 1, and cooling and lubricating mechanical seal so just can be saved from the device of pump discharge diversion flushing, has not only saved cost, but also has made installation easier.
Claims (2)
1. centrifugal pump cover, comprise the central through bore (8) that is arranged on the described pump cover (3), described central through bore (8) is provided with the machine sealing chamber (7) that links to each other with described central through bore (8) towards a side of centrifugal pump body (1), it is characterized in that: described machine sealing chamber (7) is toroidal, and the large end of described machine sealing chamber (7) is positioned at a side of described centrifugal pump body (1).
2. according to centrifugal pump cover claimed in claim 1, it is characterized in that: the cone angle of described machine sealing chamber (7) is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104993870A CN102927056A (en) | 2012-11-29 | 2012-11-29 | Centrifugal pump cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104993870A CN102927056A (en) | 2012-11-29 | 2012-11-29 | Centrifugal pump cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102927056A true CN102927056A (en) | 2013-02-13 |
Family
ID=47641951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104993870A Pending CN102927056A (en) | 2012-11-29 | 2012-11-29 | Centrifugal pump cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927056A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050728A (en) * | 2016-07-12 | 2016-10-26 | 浙江工业大学 | Seal cavity with inner wall of tornado-like spiral groove composite structure |
| CN107387458A (en) * | 2017-07-26 | 2017-11-24 | 德清县东旭合金钢铸造有限公司 | A kind of pump cover structure of chemical pump |
| CN107559237A (en) * | 2017-07-07 | 2018-01-09 | 安徽卧龙泵阀股份有限公司 | A kind of long-life centrifugal pump cover |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201297274Y (en) * | 2008-11-06 | 2009-08-26 | 陈潜 | Forced circulation mechanical seal structure with shaft sleeve |
| JP2011088214A (en) * | 2011-01-05 | 2011-05-06 | Jfe Steel Corp | Slide gate plate and regenerating method therefor |
| CN201836102U (en) * | 2010-10-13 | 2011-05-18 | 磨锐泵（上海）有限公司 | Seal structure of liquid carbon dioxide delivery pump and liquid carbon dioxide delivery pump |
| CN102534140A (en) * | 2012-02-15 | 2012-07-04 | 陈潜 | Method for treating flow passage component of titanium alloy slurry pump and titanium alloy slurry pump |
| CN202468466U (en) * | 2012-02-15 | 2012-10-03 | 陈潜 | Titanium alloy slurry pump |
| CN202955039U (en) * | 2012-11-29 | 2013-05-29 | 无锡艾比德泵业有限公司 | Centrifugal pump cover |
| US8652766B2 (en) * | 2010-10-05 | 2014-02-18 | Hitachi Displays, Ltd. | Manufacturing method of display device |
-
2012
- 2012-11-29 CN CN2012104993870A patent/CN102927056A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201297274Y (en) * | 2008-11-06 | 2009-08-26 | 陈潜 | Forced circulation mechanical seal structure with shaft sleeve |
| US8652766B2 (en) * | 2010-10-05 | 2014-02-18 | Hitachi Displays, Ltd. | Manufacturing method of display device |
| CN201836102U (en) * | 2010-10-13 | 2011-05-18 | 磨锐泵（上海）有限公司 | Seal structure of liquid carbon dioxide delivery pump and liquid carbon dioxide delivery pump |
| JP2011088214A (en) * | 2011-01-05 | 2011-05-06 | Jfe Steel Corp | Slide gate plate and regenerating method therefor |
| CN102534140A (en) * | 2012-02-15 | 2012-07-04 | 陈潜 | Method for treating flow passage component of titanium alloy slurry pump and titanium alloy slurry pump |
| CN202468466U (en) * | 2012-02-15 | 2012-10-03 | 陈潜 | Titanium alloy slurry pump |
| CN202955039U (en) * | 2012-11-29 | 2013-05-29 | 无锡艾比德泵业有限公司 | Centrifugal pump cover |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050728A (en) * | 2016-07-12 | 2016-10-26 | 浙江工业大学 | Seal cavity with inner wall of tornado-like spiral groove composite structure |
| CN107559237A (en) * | 2017-07-07 | 2018-01-09 | 安徽卧龙泵阀股份有限公司 | A kind of long-life centrifugal pump cover |
| CN107387458A (en) * | 2017-07-26 | 2017-11-24 | 德清县东旭合金钢铸造有限公司 | A kind of pump cover structure of chemical 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 | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130213 |