CN202971340U - Cooling structure of centrifugal pump mechanical seal - Google Patents
Cooling structure of centrifugal pump mechanical seal Download PDFInfo
- Publication number
- CN202971340U CN202971340U CN 201220644661 CN201220644661U CN202971340U CN 202971340 U CN202971340 U CN 202971340U CN 201220644661 CN201220644661 CN 201220644661 CN 201220644661 U CN201220644661 U CN 201220644661U CN 202971340 U CN202971340 U CN 202971340U
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- CN
- China
- Prior art keywords
- mechanical seal
- pump
- cooling structure
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a cooling structure of centrifugal pump mechanical seal. The cooling structure comprises a pump cover and a mechanical seal gland, the pump cover is arranged on a shaft, the mechanical seal gland is fixed outside the pump cover, a mechanical seal cavity of the mechanical seal is arranged between the pump cover and the shaft, the mechanical seal cavity is of a horn mouth shape, and the big end of the mechanical seal cavity is arranged on one side of a pump body of a centrifugal pump. The mechanical seal cavity is of the horn mouth shape, washing water in the pump body can easily enter the mechanical seal cavity to cool and lubricate the mechanical seal, so that a device of capable of introducing water from a pump outlet to wash is removed. The cooling structure not only saves cost, but also enables installation to be simple and convenient. A space of the mechanical seal cavity of the horn mouth shape is increased, in the process of use, and if the media contain particulate matters, abrasion between the particulate matters and the mechanical seal does not easily occur, and damage of mechanical seal is not caused.
Description
Technical field
The utility model relates to centrifugal pump, specifically a kind of cooling structure of mechanical face seals of centrifugal pumps.
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 suspension 5 by bearing and an end of axle 6 stretches in 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 axle 6, the outside of pump cover 3 is equipped with the machine sealed cover 4 of positioning mechanical sealing.
Above-mentioned centrifugal pump is for cooling and lubrication mechanical seal, between the outlet of the pump housing 1 and machine sealed cover 4, Rinsing unit is installed, rinse 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; In addition, the machine sealing chamber 7 of pump cover 3 is cylindrical, and the space is less, if when containing particulate matter in medium in use, easily cause the friction of particulate matter and mechanical seal, causes the damage of mechanical seal, and centrifugal pump is leaked.
Summary of the invention
The utility model is for the problems referred to above, and a kind of cooling structure of simple in structure, mechanical face seals of centrifugal pumps that cost is low is provided.
According to the technical solution of the utility model: a kind of cooling structure of mechanical face seals of centrifugal pumps, comprise the pump cover and the machine sealed cover that are arranged on axle, described machine sealed cover is fixed on the outside of described pump cover, be provided with the machine sealing chamber that mechanical seal is installed between described pump cover and described axle, 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 utility model is: the machine sealing chamber in the utility model is toroidal, in the pump housing, the sparge water of self can be easy to enter in machine sealing chamber, cooling and lubricating mechanical seal, so just can save the device that rinses from the pump discharge diversion, not only saved cost, but also made installation easier; In addition, the machine sealing chamber of toroidal has strengthened the space, if in use contain particulate matter in medium, also is not easy to occur the friction between particulate matter and mechanical seal, can not cause the infringement of mechanical seal.
Description of drawings
Fig. 1 is the structural representation of centrifugal pump of the prior art.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structure cross-sectional schematic of the pump cover 3 in the utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
In 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 use centrifugal pump of the present utility model, 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 suspension 5 by bearing and an end of axle 6 stretches in 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 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 above-mentioned centrifugal pump, comprise the central through bore 8 that is arranged on pump cover 3, be provided with towards a side of centrifugal pump body 1 machine sealing chamber 7 that is connected with central through bore 8 at central through bore 8, 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 °.
Claims (2)
1. the cooling structure of a mechanical face seals of centrifugal pumps, comprise the pump cover (3) and the machine sealed cover (4) that are arranged on axle (6), described machine sealed cover (4) is fixed on the outside of described pump cover (3), be provided with the machine sealing chamber (7) that mechanical seal is installed between described pump cover (3) and described axle (6), 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 centrifugal pump body (1).
2. according to the cooling structure of mechanical face seals of centrifugal pumps 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 |
|---|---|---|---|
| CN 201220644661 CN202971340U (en) | 2012-11-29 | 2012-11-29 | Cooling structure of centrifugal pump mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220644661 CN202971340U (en) | 2012-11-29 | 2012-11-29 | Cooling structure of centrifugal pump mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971340U true CN202971340U (en) | 2013-06-05 |
Family
ID=48512424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220644661 Expired - Fee Related CN202971340U (en) | 2012-11-29 | 2012-11-29 | Cooling structure of centrifugal pump mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927057A (en) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | Cooling structure of mechanical seal of centrifugal pump |
-
2012
- 2012-11-29 CN CN 201220644661 patent/CN202971340U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927057A (en) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | Cooling structure of mechanical seal of centrifugal pump |
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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: 20130605 Termination date: 20211129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |