CN106321454A - Automatic liquid storage device of self-priming centrifugal pump - Google Patents
Automatic liquid storage device of self-priming centrifugal pump Download PDFInfo
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- CN106321454A CN106321454A CN201510363731.7A CN201510363731A CN106321454A CN 106321454 A CN106321454 A CN 106321454A CN 201510363731 A CN201510363731 A CN 201510363731A CN 106321454 A CN106321454 A CN 106321454A
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- China
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- liquid storage
- centrifugal pump
- annular non
- return block
- valve rod
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Abstract
The invention discloses an automatic liquid storage device of a self-priming centrifugal pump. A liquid storage barrel of the device is arranged on a suction tube of the self-priming centrifugal pump and the bottom of the liquid storage barrel communicates with the suction tube; a barrel cover is arranged at the top end of the liquid storage barrel; an annular non-return block is arranged on the inner wall of the liquid storage barrel; a first shaft sleeve is connected to the annular non-return block and is located at the center of an inner ring of the annular non-return block; a valve rod penetrates into the barrel cover and the first shaft sleeve and the bottom of the valve rod is connected to a floating ball; a spring sleeves the valve rod and is located between the first shaft sleeve and the floating ball; the valve block is arranged on the valve rod and is located above the annular non-return block; and a seal ring is arranged on the top surface of the annular non-return block and is matched with the valve block in position. The device guarantees that the self-priming centrifugal pump in a starting process of secondarily sucking and draining a liquid has an enough effective medium, and can be effectively sealed after the pump body is started, so that normal start of the self-priming centrifugal pump is guaranteed and equipment failures are avoided.
Description
Technical field
The present invention relates to the automatic liquid storage device of a kind of self priming centrifugal pump.
Background technology
The operation principle effect based on centrifugal force of self priming centrifugal pump, before work, the pump housing and water inlet pipe must be filled water and form vacuum state, when impeller quick rotation, blade promotes water quickly to rotate, the water being rotating flies out under the influence of centrifugal force from impeller, and after the water in pump is spilled over, the core of impeller forms vacuum area.The water at water source has been pressed onto in water inlet pipe by pipe network under the effect of atmospheric pressure (or hydraulic pressure).So circulation is endlessly, it is possible to realize continuous pumpage.Therefore self priming centrifugal pump can must start after being full of water in pump case before starting, and otherwise will result in pump housing heating, vibrations, and water yield reduces, and the pump housing causes damage (being called for short " cavitation erosion "), causes equipment breakdown.
Self priming centrifugal pump is in the case of the initial stage of use or environment are preferable, it starts, especially restarting situation still may be used, but in use for some time, due to by environment, mechanical vibration, wear and tear, seal, pumped (conveying) medium etc. affects, and can not effectively keep medium needed for self-priming in centrifugal pump, its suction capacity will be had a greatly reduced quality, affect startability, even result in equipment fault.
Summary of the invention
The technical problem to be solved is to provide the automatic liquid storage device of a kind of self priming centrifugal pump, this device guarantees that self priming centrifugal pump has enough Effective mediums in the start-up course of secondary liquid sucking-discharging, effectively can seal after the pump housing starts again, thus ensure the normal startup of self priming centrifugal pump, it is to avoid equipment fault.
nullFor solving above-mentioned technical problem，The automatic liquid storage device of self priming centrifugal pump of the present invention includes the suction tube of self priming centrifugal pump and is located at the unidirectional stop valve of suction tube，Also include liquid storage cylinder、Cover、Valve rod、Ball float、Valve block、Annular non-return block、Spring、Sealing ring and the first axle sleeve，Described liquid storage cylinder is located on described suction tube and bottom connection suction tube，Described cover is located at described liquid storage cylinder top，Described annular non-return block is located at the inwall of described liquid storage cylinder，Described first axle sleeve connects described annular non-return block and is positioned at annular non-return block inner ring center，Described valve rod penetrates described cover and the first axle sleeve and bottom connects described ball float，Described spring is inserted in described valve rod and between described first axle sleeve and ball float，Described valve block is located at described valve rod and is positioned at above described annular non-return block，Described sealing ring is located at described annular non-return block end face and position and described valve Block-matching.
Further, described annular non-return block end face is provided with cannelure, and described sealing ring embeds in described cannelure.
Further, this device also includes that described cover center is located at by the second axle sleeve, described second axle sleeve, and described valve rod penetrates in described second axle sleeve.
Owing to the automatic liquid storage device of self priming centrifugal pump of the present invention have employed technique scheme, the i.e. liquid storage cylinder of this device is located on the suction tube of self priming centrifugal pump and bottom connection suction tube, cover is located at liquid storage cylinder top, annular non-return block is located at the inwall of liquid storage cylinder, first axle sleeve connects annular non-return block and is positioned at annular non-return block inner ring center, valve rod penetrates cover and the first axle sleeve and bottom connects ball float, spring is inserted in valve rod and between the first axle sleeve and ball float, valve block is located at valve rod and is positioned at above annular non-return block, sealing ring is located at annular non-return block end face and position and described valve Block-matching.This device guarantees that self priming centrifugal pump has enough Effective mediums in the start-up course of secondary liquid sucking-discharging, effectively can seal again after the pump housing starts, thus ensures the normal startup of self priming centrifugal pump, it is to avoid equipment fault.
Accompanying drawing explanation
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the automatic liquid storage device of self priming centrifugal pump of the present invention.
Detailed description of the invention
nullEmbodiment 1 is as shown in Figure 1，The automatic liquid storage device of self priming centrifugal pump of the present invention includes the suction tube 1 of self priming centrifugal pump and is located at the unidirectional stop valve 2 of suction tube 1，Also include liquid storage cylinder 3、Cover 4、Valve rod 5、Ball float 6、Valve block 7、Annular non-return block 8、Spring 9、Sealing ring 10 and the first axle sleeve 11，Described liquid storage cylinder 3 is located on described suction tube 1 and bottom connection suction tube 1，Described cover 4 is located at described liquid storage cylinder 3 top，Described annular non-return block 8 is located at the inwall of described liquid storage cylinder 3，Described first axle sleeve 11 connects described annular non-return block 8 and is positioned at annular non-return block 8 inner ring center，Described valve rod 5 penetrates described cover 4 and the first axle sleeve 11 and bottom connects described ball float 6，Described spring 9 is inserted in described valve rod 5 and between described first axle sleeve 11 and ball float 6，Described valve block 7 is located at described valve rod 5 and is positioned at above described annular non-return block 8，Described annular non-return block 8 end face is located at by described sealing ring 10 and position is mated with described valve block 7.
Preferably, described annular non-return block 8 end face is provided with cannelure, and described sealing ring 10 embeds in described cannelure.Cannelure is used for fixed seal ring, it is to avoid sealing ring displacement causes the seal failure between valve block.
Embodiment 2, on the basis of embodiment 1, this device also includes that described cover 4 center is located at by the second axle sleeve 12, described second axle sleeve 12, and described valve rod 5 penetrates in described second axle sleeve 5.Second axle sleeve coordinates the first axle sleeve to play the guide effect of valve rod, it is to avoid valve rod lifting process is stuck, and avoids the abrasion of valve rod.
When centrifugal pump work stops, suction tube institute pumped (conveying) medium is due to by returning back pressure effect, liquid storage cylinder is returned through unidirectional stop valve, now liquid storage cylinder in-vivo medium liquid level rises, ball float stress and overcome the active force band ovable valve stem of spring to rise, valve block departs from the sealing ring of annular non-return block end face, liquid storage cylinder cavity below annular non-return block is communicated with air, unidirectional stop valve blocks pumped (conveying) medium backflow simultaneously, so that enough pumped (conveying) mediums can be kept in centrifugal pump, prepare for centrifugal pump secondary suction capacity；When centrifugal pump restarting, liquid storage cylinder in-vivo medium liquid level declines, ball float declines at the elastic force of spring and the dual function of ball float gravity, valve rod band ovable valve stem declines so that valve block seals against circle, closes the liquid storage cylinder cavity below closed-loop shaped non-return block, so that can there be enough media in centrifugal pump body, guarantee that centrifugal pump secondary self-priming starts successfully, and ensure that suction tube has enough time to communicate with air, play the effect of valve block time-delay closing.
This apparatus structure is simple, reliable operation, effectively prevent the suction phenomenon that self priming centrifugal pump starts, it is ensured that the reliable startup of self priming centrifugal pump, stops the cavitation erosion fault of the self priming centrifugal pump pump housing, it is ensured that self priming centrifugal pump properly functioning.
Claims (3)
- null1. the automatic liquid storage device of a self priming centrifugal pump，Suction tube and the unidirectional stop valve being located at suction tube including self priming centrifugal pump，It is characterized in that: also include liquid storage cylinder、Cover、Valve rod、Ball float、Valve block、Annular non-return block、Spring、Sealing ring and the first axle sleeve，Described liquid storage cylinder is located on described suction tube and bottom connection suction tube，Described cover is located at described liquid storage cylinder top，Described annular non-return block is located at the inwall of described liquid storage cylinder，Described first axle sleeve connects described annular non-return block and is positioned at annular non-return block inner ring center，Described valve rod penetrates described cover and the first axle sleeve and bottom connects described ball float，Described spring is inserted in described valve rod and between described first axle sleeve and ball float，Described valve block is located at described valve rod and is positioned at above described annular non-return block，Described sealing ring is located at described annular non-return block end face and position and described valve Block-matching.
- The automatic liquid storage device of self priming centrifugal pump the most according to claim 1, it is characterised in that: described annular non-return block end face is provided with cannelure, and described sealing ring embeds in described cannelure.
- The automatic liquid storage device of self priming centrifugal pump the most according to claim 1 and 2, it is characterised in that: this device also includes that described cover center is located at by the second axle sleeve, described second axle sleeve, and described valve rod penetrates in described second axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363731.7A CN106321454A (en) | 2015-06-29 | 2015-06-29 | Automatic liquid storage device of self-priming centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363731.7A CN106321454A (en) | 2015-06-29 | 2015-06-29 | Automatic liquid storage device of self-priming centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321454A true CN106321454A (en) | 2017-01-11 |
Family
ID=57721972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510363731.7A Pending CN106321454A (en) | 2015-06-29 | 2015-06-29 | Automatic liquid storage device of self-priming centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321454A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154367Y (en) * | 1992-12-16 | 1994-01-26 | 河南省驻马店市喷灌机厂 | Auto-controlled valve of reflux for efficient auto-suck pump |
| US20030039555A1 (en) * | 2001-08-11 | 2003-02-27 | Pioneer Pump Inc. | Self-priming centrifugal pump |
| CN201836060U (en) * | 2010-10-14 | 2011-05-18 | 辽宁格瑞特泵业有限公司 | Novel self-priming machine for centrifugal pump |
| CN202946429U (en) * | 2012-12-21 | 2013-05-22 | 新昌德力石化设备有限公司 | Inlet one-way valve for self-priming pump |
| CN203130585U (en) * | 2013-02-27 | 2013-08-14 | 上海宝钢工业技术服务有限公司 | Suction stop valve of self-suction centrifugal pump |
-
2015
- 2015-06-29 CN CN201510363731.7A patent/CN106321454A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154367Y (en) * | 1992-12-16 | 1994-01-26 | 河南省驻马店市喷灌机厂 | Auto-controlled valve of reflux for efficient auto-suck pump |
| US20030039555A1 (en) * | 2001-08-11 | 2003-02-27 | Pioneer Pump Inc. | Self-priming centrifugal pump |
| CN201836060U (en) * | 2010-10-14 | 2011-05-18 | 辽宁格瑞特泵业有限公司 | Novel self-priming machine for centrifugal pump |
| CN202946429U (en) * | 2012-12-21 | 2013-05-22 | 新昌德力石化设备有限公司 | Inlet one-way valve for self-priming pump |
| CN203130585U (en) * | 2013-02-27 | 2013-08-14 | 上海宝钢工业技术服务有限公司 | Suction stop valve of self-suction centrifugal pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |