CN2597721Y - Vertical pipeline fire control tangent pump with conventional rotating speed - Google Patents
Vertical pipeline fire control tangent pump with conventional rotating speed Download PDFInfo
- Publication number
- CN2597721Y CN2597721Y CNU022615253U CN02261525U CN2597721Y CN 2597721 Y CN2597721 Y CN 2597721Y CN U022615253 U CNU022615253 U CN U022615253U CN 02261525 U CN02261525 U CN 02261525U CN 2597721 Y CN2597721 Y CN 2597721Y
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- pump
- impeller
- utility
- model
- pump body
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- Expired - Fee Related
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Abstract
The utility model relates to a common rotating speed possessing vertical type pipe firefighting tangent pump comprising a pump body and a pump cover. The pump body is internally provided with an impeller, a pump body inlet and a pump body outlet. The impeller is directly connected with the output shaft of a motor by a bolt and is provided with a plurality of opening type straight blades, without a necessity to position a hear wearing sealing choma. The pump body inlet and the pump body outlet are arranged on the same straight line. The utility model is a vertical inline pump which is directly arranged on the same straight line, with such key parts as the impeller adopting structural forms differing from that of existing products, and has functions of current transformer and voltage regulation. The utility model is a common rotating speed possessing tangent pump which differs from high-speed tangent pumps and is principally used on firefighting equipment. Thanks to the unique structure of absent choma and opening type straight blades of the impeller, the utility model has structure far simpler than that of common centrifugal pumps as well as simple processing and manufacturing, thereby reducing the manufacturing cost and cycle. The utility model has the advantages of small volume, little occupy land, light weight and nice appearance.
Description
Technical field
The utility model relates to pipeline mounted pump, particularly a kind of conventional rotating speed riser fire-extinguishing tangent pump.
Background technique
The pump housing of existing centrifugal pipeline mounted pump is generally volute chamber structure, and the blade on the impeller is the enclosed curved vane, and impeller is equipped with impeller port ring, to guarantee the amount of leakage of double shrouded wheel when moving.The flow lift curve of this pump is a curve that descends gradually, represents that its pressure of supply water is the situation that descends gradually, and can not constant pressure water supply.Existing vertical and high-speed tangent pump is equipped with accelerating chamber, at the front end of pump inducer is housed.Existing centrifugal pump and tangent line pump structure are comparatively complicated, and weight is heavier, and volume is big.
Summary of the invention
Task of the present utility model provides a kind of improved conventional rotating speed riser fire-extinguishing tangent pump, and it has solved comparatively complicated, the problem that can not constant pressure water supply of existing centrifugal pump and tangent pump structure.
The technical solution of the utility model is as follows:
A kind of conventional rotating speed riser fire-extinguishing tangent pump, it comprises the pump housing and pump cover, the impeller of settling in the pump housing, and pump housing import and outlet, described impeller directly is connected by screw on the output shaft of motor, several open type prismatic blades is housed on the impeller, and the wear-resistant seal choma need not be installed; Described pump housing import and pump housing outlet are arranged on the same straight line.
Conventional rotating speed riser fire-extinguishing tangent pump of the present utility model is a kind of riser pump that is directly installed on the same straight line pipeline, and the structural type of critical components such as its impeller is different with existing product, has the characteristics of unsteady flow voltage stabilizing.The utility model is the tangent pump of conventional rotating speed, is different from the high speed tangent pump, is mainly used in fire-protection equipment.
Because the utility model is taked motor straight connection type structure, has guaranteed that pump is concentric fully, therefore the vibrations that produce are little, and noise is low.Its moving parts is few, and major part has only the pump housing, pump cover, impeller and mechanical seal, the operating reliability height.Import and export of the present utility model are arranged on the same straight line, are convenient to be installed in the supply channel.
The straight-vaned peculiar structure of the no choma of impeller and open type has determined its structure much simpler than general centrifugal pump in the utility model, and manufacturing is also simple, has reduced manufacture cost and cycle thus.Because impeller does not have front and rear cover plate, so the axial force of impeller is very little, has reduced the infringement to bearing, guarantee security of operation.
The utility model has replaced the frequency control of motor speed equipment in the general constant pressure water supply equipment, has reduced the cost of unit, and has improved operational reliability, has reduced maintenance load.Its volume is little, takes up an area of few, in light weight, aesthetic in appearance.
Description of drawings
Fig. 1 is the structural representation of a kind of conventional rotating speed riser fire-extinguishing tangent pump of the present utility model.
Fig. 2 is the blade wheel structure schematic representation of Fig. 1 tangent pump.
Fig. 3 is the blade structure schematic representation of Fig. 2 impeller.
Embodiment
Referring to Fig. 1 to Fig. 3, the utility model is a kind of conventional rotating speed riser fire-extinguishing tangent pump, and it is equipped with the pump housing 1 and pump cover 2, settles impeller 3 in the pump housing 1, and impeller 3 directly is connected on the output shaft of motor 5 by screw 4.Impeller 3 rotates in the ring-type pumping chamber by the drive of motor shaft, and current direction shown in Fig. 1 arrow flows.
The pump housing 1 is provided with import and outlet, and pump housing import and pump housing outlet are arranged on the same straight line.In pump housing import and the pump housing outlet suction flange 6 and outlet(discharge) flange 7 are installed respectively.
Several open type prismatic blades 31 are housed on the impeller 3, and open type prismatic blade 31 is distributed in the impeller 3 circle footpaths.Impeller 3 of the present utility model need not be installed the wear-resistant seal choma.
Conventional rotating speed riser fire-extinguishing tangent pump of the present utility model is compared with common riser centrifugal pump, has following advantage:
Flow lift curve of the present utility model is a smooth curve, has the function of unsteady flow voltage stabilizing, can realize constant pressure water supply, and the flow lift curve of Ordinary Centrifugal Pumps then is a curve that descends gradually, can not constant pressure water supply.
The pump housing of the present utility model is a ring structure, and the pump housing of common riser pump then is a volute chamber structure.
Blade wheel structure form of the present utility model is an open type prismatic blade structure, and the blade wheel structure of common riser pump is the enclosed curved vane.
Impeller of the present utility model is an open architecture, no impeller port ring, and common riser pump all has impeller port ring, to guarantee the amount of leakage of double shrouded wheel when moving.
The utility model is in export pipeline, and liquid stream throws away along tangent direction, and spreads, and recovers pressure coefficient, turns round then, and the pressure recovery of Ordinary Centrifugal Pumps is then carried out in turning process.
The utility model is compared with the high speed tangent pump, has cancelled accelerating chamber, makes structurally more succinct, compact.
Claims (1)
1. conventional rotating speed riser fire-extinguishing tangent pump, it comprises the pump housing and pump cover, the impeller of in the pump housing, settling, and pump housing import and outlet, it is characterized in that, described impeller directly is connected by screw on the output shaft of motor, several open type prismatic blades is housed on the impeller, and the wear-resistant seal choma need not be installed; Described pump housing import and pump housing outlet are arranged on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022615253U CN2597721Y (en) | 2002-11-13 | 2002-11-13 | Vertical pipeline fire control tangent pump with conventional rotating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022615253U CN2597721Y (en) | 2002-11-13 | 2002-11-13 | Vertical pipeline fire control tangent pump with conventional rotating speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2597721Y true CN2597721Y (en) | 2004-01-07 |
Family
ID=34150150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU022615253U Expired - Fee Related CN2597721Y (en) | 2002-11-13 | 2002-11-13 | Vertical pipeline fire control tangent pump with conventional rotating speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2597721Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277319A (en) * | 2013-06-08 | 2013-09-04 | 江苏德华泵业有限公司 | Marine tangent pump |
| CN104047868A (en) * | 2014-06-27 | 2014-09-17 | 厦门市益能泵业有限公司 | Mute fire fighting pressure stabilizing and boosting device |
-
2002
- 2002-11-13 CN CNU022615253U patent/CN2597721Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277319A (en) * | 2013-06-08 | 2013-09-04 | 江苏德华泵业有限公司 | Marine tangent pump |
| CN103277319B (en) * | 2013-06-08 | 2016-03-30 | 江苏德华泵业有限公司 | Marine tangent pump |
| CN104047868A (en) * | 2014-06-27 | 2014-09-17 | 厦门市益能泵业有限公司 | Mute fire fighting pressure stabilizing and boosting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |