CN204175633U - Horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel - Google Patents
Horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel Download PDFInfo
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- CN204175633U CN204175633U CN201420609390.8U CN201420609390U CN204175633U CN 204175633 U CN204175633 U CN 204175633U CN 201420609390 U CN201420609390 U CN 201420609390U CN 204175633 U CN204175633 U CN 204175633U
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Abstract
The utility model discloses a kind of horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel, this structure take pump as carrier.Described pump location and installation is on base, and pump is by bracket direct-coupled electrical machinery.In pump, impeller is by pump cover block, and the mechanical seal of installing in pump cover axial bore coordinates with pump shaft and forms shaft seal.The utility model faces an inclined hole side end face of impeller being provided with straight-through shaft seal place at pump cover, inclined hole forms the built-in water-cooling structure that pump chamber links up shaft seal.The utility model accomplishes that water-cooled mechanical seal operates synchronous with pump; guarantee that mechanical seal obtains cooling in time, fully and reliably, the dynamic and static ring opening problem that chilling causes mechanical seal can not occur, because mechanical seal operation matter state is good; guarantee shaft seal long service life, sealing effect is good.Because built-in water-cooling structure does not additionally take up space, the horizontal centrifugal pump peculiar to vessel being particularly suitable for installing in cabin is supporting.
Description
Technical field
The utility model relates to a kind of water-cooling shaft seal structure, and specifically, the utility model relates to a kind of supporting water-cooling shaft seal structure in horizontal centrifugal pump.
Background technique
The agent structure of horizontal centrifugal pump is Pump and Electromotor coaxial linkage, between Pump and Electromotor, be provided with shaft seal, and different industries has different demand because operating mode is different to supporting shaft seal structure, and the shaft seal sealability difference of different structure is very large.Horizontal centrifugal pump peculiar to vessel is because drifting about with ship, adding mounting point is in the cabin of space relative narrowness, the daily adjustment of Pump Shaft Seal, maintenance are very inconvenient, so have higher quality requirement to the shaft seal of marine centrifugal pump, and the first-selected mechanical seal of the supporting shaft seal of commercially available marine centrifugal pump.During horizontal centrifugal pump operation peculiar to vessel, the rotating ring rotational speed of mechanical seal between 9ms ~ 16ms, under so high linear velocity, if dynamic and static ring friction pair can not get necessary cooling, temperature can increase rapidly, and too high temperature will cause dynamic and static ring sealing pair scaling loss.Even if friction pair is not by high temperature scaling loss, once contact with the cooling water of normal temperature, because both temperature difference great Yi cause cracking, thus cause mechanical sealing element to lose efficacy, the medium leaked enters along pump shaft and easily causes motor burning accident.The supporting shaft seal constituent of existing goods horizontal centrifugal pump peculiar to vessel mainly contains the large class of positive displacement or external cooling water special road two, although existing water-cooling structure cooling is reliable, structure relative complex, volume is large, Maintenance Difficulty is not the shaft seal water-cooling structure of horizontal centrifugal pump the best peculiar to vessel.
Model utility content
The utility model mainly for the deficiency of prior art products, propose a kind of structure simple, make that to be easy to built-in water passage true, this water channel water-cooled is timely, enough, and the horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel additionally do not taken up room.
The utility model is achieved through the following technical solutions technical goal.
Horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel, this structure take pump as carrier.Described pump location and installation is on base, and pump is by bracket direct-coupled electrical machinery.The built-in impeller of described pump is by pump cover block, and the mechanical seal of installing in pump cover axial bore coordinates with pump shaft and forms shaft seal.Its improvements are: the side end face that described pump cover faces impeller is provided with the inclined hole at straight-through shaft seal place, and inclined hole forms the built-in water-cooling structure that pump chamber links up shaft seal.
In said structure, pump cover faces inclined hole impeller one side end face being equipped with 2 ~ 4 straight-through shaft seal places, and inclined hole is the circular hole of Φ 5mm ~ Φ 8mm.
The utility model compared with prior art, has following good effect:
It is very simple that 1, water-cooling structure is set on pump cover interior edge face, makes easily;
2, water-cooled operates synchronous with pump, shaft seal is cooled in time, fully cooling and reliably cool, mechanical seal is in good cooler environment, long service life, good sealing effect;
3, built-in water-cooling structure does not additionally take up space, and is conducive to horizontal centrifugal pump peculiar to vessel and installs in cabin.
Accompanying drawing explanation
Fig. 1 is the utility model structural profile schematic diagram.
Fig. 2 is the close-up schematic view of the 3.1.1 of inclined hole shown in Fig. 1.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in further detail.
Horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel shown in Fig. 1, this structure with pump 3 for carrier.Described pump 3 is a kind of single absorption horizontal centrifugal pumps, and the pump 3 of location and installation on base is by bracket 2 direct-coupled electrical machinery 1.The impeller 3.2 established in pump 3 is by pump cover 3.1 block, and the mechanical seal 4 of installing in pump cover 3.1 axial bore coordinates with pump shaft and forms shaft seal.The utility model cools problem to solve when mechanical seal 4 rotates with pump shaft, devises a kind of built-in water-cooling shaft seal structure, and this structure causes minor amount of water to specialize in shaft seal from carrying setting-out of carry of pump 3 to cool.Built-in water-cooling shaft seal structure is located in pump cover 3.1, concrete structure is that pump cover 3.1 faces on a side end face of impeller 3.2, be provided with the inclined hole 3.1.1 of straight-through shaft seal position, inclined hole 3.1.1 forms the built-in channel that pump chamber links up shaft seal, cause from pump chamber and the water that trace carries pressure and to go directly shaft seal, mechanical seal 4 is reliably cooled.The present embodiment is Q=21m
3the horizontal centrifugal pump peculiar to vessel of/h, H=42m, because specification is little, pump cover 3.1 faces and impeller 3.2 1 side end face is equipped with 2 inclined hole 3.1.1 just can meets the requirement of shaft seal water-cooled, guarantees that mechanical seal 4 obtains fully cooling and reliably cools.The maximum benefit of the utility model accomplishes that water-cooled mechanical seal operates synchronous with pump 3, because mechanical seal 4 is cooled in time, the dynamic and static ring opening problem that chilling causes mechanical seal can not occur, due to mechanical seal 4, to run matter state good, guarantee shaft seal long service life, sealing effect is good.Another benefit is that built-in water-cooling structure does not additionally take up space, and the horizontal centrifugal pump peculiar to vessel being particularly suitable for installing in cabin is supporting.
Claims (3)
1. a horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel, this structure with pump (3) for carrier; Described pump (3) location and installation is on base (5), and pump (3) is by bracket (2) direct-coupled electrical machinery (1); The built-in impeller (3.2) of described pump (3) is by pump cover (3.1) block, and the mechanical seal (4) of installing in pump cover (3.1) axial bore coordinates with pump shaft and forms shaft seal; It is characterized in that: the side end face that described pump cover (3.1) faces impeller (3.2) is provided with the inclined hole (3.1.1) at straight-through shaft seal place, inclined hole (3.1.1) forms the built-in water-cooling structure that pump chamber links up shaft seal.
2. horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel according to claim 1, is characterized in that: described pump cover (3.1) faces the inclined hole (3.1.1) impeller (3.2) side end face being equipped with 2 ~ 4 straight-through shaft seal places.
3. horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel according to claim 1, is characterized in that: the circular hole that described inclined hole (3.1.1) is Φ 5mm ~ Φ 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420609390.8U CN204175633U (en) | 2014-10-22 | 2014-10-22 | Horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420609390.8U CN204175633U (en) | 2014-10-22 | 2014-10-22 | Horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175633U true CN204175633U (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420609390.8U Active CN204175633U (en) | 2014-10-22 | 2014-10-22 | Horizontal centrifugal pump built-in water-cooling shaft seal structure peculiar to vessel |
Country Status (1)
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| CN (1) | CN204175633U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090064A (en) * | 2015-08-04 | 2015-11-25 | 姜广义 | High-speed directly connected water vapor compressor |
| CN105736394A (en) * | 2016-04-07 | 2016-07-06 | 镇江江大泵业科技有限公司 | Directly-connected horizontal type centrifugal pump |
| CN105756950A (en) * | 2016-04-05 | 2016-07-13 | 镇江江大泵业科技有限公司 | Novel efficient sewage pump |
| CN105756952A (en) * | 2016-04-05 | 2016-07-13 | 镇江江大泵业科技有限公司 | High-coaxiality connection mechanism for pipeline pump |
| CN105756949A (en) * | 2016-04-05 | 2016-07-13 | 镇江江大泵业科技有限公司 | Special impeller for novel efficient sewage pump |
-
2014
- 2014-10-22 CN CN201420609390.8U patent/CN204175633U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090064A (en) * | 2015-08-04 | 2015-11-25 | 姜广义 | High-speed directly connected water vapor compressor |
| CN105090064B (en) * | 2015-08-04 | 2018-01-23 | 姜广义 | A kind of direct-connected vapor compressor of high speed |
| CN105756950A (en) * | 2016-04-05 | 2016-07-13 | 镇江江大泵业科技有限公司 | Novel efficient sewage pump |
| CN105756952A (en) * | 2016-04-05 | 2016-07-13 | 镇江江大泵业科技有限公司 | High-coaxiality connection mechanism for pipeline pump |
| CN105756949A (en) * | 2016-04-05 | 2016-07-13 | 镇江江大泵业科技有限公司 | Special impeller for novel efficient sewage pump |
| CN105736394A (en) * | 2016-04-07 | 2016-07-06 | 镇江江大泵业科技有限公司 | Directly-connected horizontal type centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 225500 No. 9, Jiangyan Avenue, Jiangyan Economic Development Zone, Taizhou, Jiangsu Patentee after: Jiangsu Zhenhua pump Limited by Share Ltd Address before: 225500 No. 9, Jiangyan Avenue, Jiangyan District, Jiangsu, Taizhou Patentee before: Jiangsu Zhenhua Pump Industry Manufacturing Co., Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 225500 Jiangyan Avenue No. 9, Jiangyan District, Taizhou City, Jiangsu Province (Jiangsu Zhenhua Pump Manufacturing Co., Ltd.) Patentee after: Jiangsu Zhenhua Pump Industry Manufacturing Co., Ltd. Address before: 225500 Jiangyan Avenue No. 9, Jiangyan Economic Development Zone, Taizhou City, Jiangsu Province Patentee before: Jiangsu Zhenhua pump Limited by Share Ltd |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.9 Jiangyan Avenue, Jiangyan Economic Development Zone, Taizhou City, Jiangsu Province (Jiangsu Zhenhua Haike Equipment Technology Co., Ltd.) Patentee after: Jiangsu Zhenhua Haike Equipment Technology Co., Ltd Address before: 225500 Jiangsu Zhenhua Pump Manufacturing Co., Ltd., Jiangyan Road, Jiangyan District, Jiangsu, Taizhou 9 Patentee before: JIANGSU ZHENHUA PUMP MANUFACTURING Co.,Ltd. |
|
| CP03 | Change of name, title or address |