CN202707595U - Inducer for preheating water pump - Google Patents
Inducer for preheating water pump Download PDFInfo
- Publication number
- CN202707595U CN202707595U CN 201220285126 CN201220285126U CN202707595U CN 202707595 U CN202707595 U CN 202707595U CN 201220285126 CN201220285126 CN 201220285126 CN 201220285126 U CN201220285126 U CN 201220285126U CN 202707595 U CN202707595 U CN 202707595U
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- CN
- China
- Prior art keywords
- screw
- inducer
- bearing seat
- water pump
- bearing support
- 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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Abstract
Disclosed is an inducer for preheating a water pump. The inducer comprises a bearing seat, helical blades and a screw, a casing of a barrel of the inducer is made into a conical shape, a plurality of the helical blades are arranged above the inducer, and the helical blades are gradually enlarged from front ends to rear ends; a bearing seat is arranged between two helical blades which are vertically arranged, the front end of the bearing seat is provided with a groove, and the whole bearing seat is in a right trapezoid shape and extends into the lower end of a first stage impeller; the screw is arranged in the middle of the bearing seat, the head of the screw is in a semi-circle shape and is milled to be flat, a protruding block is arranged on the neck of the screw and locked with the groove at the front end of the bearing seat to prevent sliding, and the tail end of the screw extends into a pump shaft. According to the inducer for preheating the water pump, the front end of the screw is arranged to be semi-circular so that liquid guiding is facilitated, friction is reduced, the front end of the screw is milled to a flat head so that the flat head is convenient for the screw to fix, and the screw and the bearing seat are locked by means of the groove and the protruding block to prevent sliding; and an inlet of the inducer is designed so that liquid flow speeds are reduced under the condition of same flow quantity, anti-cavitation performances are improved, and stability of the inducer is enhanced.
Description
Technical field:
The utility model relates to preheating water pump inducer, particularly can reduce the preheating water pump inducer of cavitation of pump.
Background technique:
Inducer is an axial-flow blower, and it directly is contained in the upstream of preheating water pump first stage impeller, and moving with its synchronous rotating.Inducer is the quiet positive inlet head that reduces the preheating water pump, and this is that the static pressure of leaning on inducer to increase preheating water pump first stage impeller entrance realizes.Through inducing the eddy flow that takes turns to outflow wherein to want to revolve direction identical with the vane rotary direction of preheating water pump, it also plays a effect to the net positive suction head that reduces the preheating water pump.For fear of when inducer is worked in the over power district, steam bubble on blade pressure surface causes cross section of fluid channel to block namely cavitation phenomenons, we often make the design discharge of inducer and 1.5--2.3 times of preheating water pump rated flow, therefore when the preheating water pump work, inducer always is in the operation of sub load working area, and gives the supercharging of preheating water pump impeller with necessity.
Summary of the invention:
The purpose of this utility model will provide preheating water pump inducer exactly, can solve the existing problem of above product.
The purpose of this utility model is to realize like this, preheating water pump inducer, comprise bearing support, helical blade and screw, it is characterized in that: the inducer cylinder shell is done coning, the top of inducer is provided with several helical blades, and the shape of helical blade is gradual change type and gradually increase backward from front end; Be provided with bearing support between two helical blades up and down, the front end of bearing support is provided with groove and integral body is at right angles trapezoidal, and extends the lower end of first stage impeller; The middle part of bearing support is screw, and the screw head semicircular in shape is also milled flatly, and neck has projection, and just in time the groove locking with the bearing support front end prevents from skidding, and tip of screw stretches in the pump shaft.
Preheating water pump inducer adopts import design inducer, in the same traffic situation, has reduced flow rate of liquid, thereby has improved anti-cavitation performance, has strengthened its stability.
Description of drawings:
Fig. 1 is the utility model structural representation.
1, helical blade, 2, bearing support, 3, screw, 4, pump shaft, 5, first stage impeller.
Embodiment:
The invention will be further described below in conjunction with accompanying drawing: preheating water pump inducer, comprise bearing support 2, helical blade 1 and screw 3, it is characterized in that: the inducer cylinder shell is done coning, the top of inducer is provided with several helical blades 1, and the shape of helical blade 1 is gradual change type and gradually increase backward from front end; Be provided with bearing support 2 between two helical blades 1 up and down, the front end of bearing support 2 is provided with groove and integral body is at right angles trapezoidal, and extends the lower end of first stage impeller 5; The middle part of bearing support 2 is screw 3, and screw 3 head semicirculars in shape are also milled flatly, and neck has projection, and just in time the groove locking with bearing support 2 front ends prevents from skidding, and screw 3 ends stretch in the pump shaft 4.The utility model front end is arranged to semicircle and is conducive to water conservancy diversion and reduces friction, and mills into homalocephalus and make things convenient for screw to fix, and screw and bearing support adopt tongue and groove locking to prevent from skidding; Adopt import design inducer, in the same traffic situation, reduced flow rate of liquid, thereby improved anti-cavitation performance, strengthened its stability.
Claims (1)
1. preheating water pump inducer, comprise bearing support (2), helical blade (1) and screw (3), it is characterized in that: the inducer cylinder shell is done coning, the top of inducer is provided with several helical blades (1), and the shape of helical blade (1) is gradual change type and gradually increase backward from front end; Be provided with up and down bearing support (2) between two helical blades (1), the front end of bearing support (2) is provided with groove and integral body is at right angles trapezoidal, and extends the lower end of first stage impeller (5); The middle part of bearing support (2) is screw (3), and screw (3) head semicircular in shape is also milled flatly, and neck has projection, and just in time the groove locking with bearing support (2) front end prevents from skidding, and screw (3) end stretches in the pump shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285126 CN202707595U (en) | 2012-06-18 | 2012-06-18 | Inducer for preheating water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285126 CN202707595U (en) | 2012-06-18 | 2012-06-18 | Inducer for preheating water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707595U true CN202707595U (en) | 2013-01-30 |
Family
ID=47587902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220285126 Expired - Fee Related CN202707595U (en) | 2012-06-18 | 2012-06-18 | Inducer for preheating water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720696A (en) * | 2012-06-18 | 2012-10-10 | 江苏飞跃机泵制造有限公司 | Preheating water pump |
-
2012
- 2012-06-18 CN CN 201220285126 patent/CN202707595U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720696A (en) * | 2012-06-18 | 2012-10-10 | 江苏飞跃机泵制造有限公司 | Preheating water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JIANGSU FEIYUE PUMP GROUP CO., LTD. Assignor: Jiangsu Feiyue Machine Pump Manufacturing Co., Ltd. Contract record no.: 2014320000303 Denomination of utility model: Inducer for preheating water pump Granted publication date: 20130130 License type: Exclusive License Record date: 20140415 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20190618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |