CN207701383U - A kind of injection self priming pump component - Google Patents

Abstract

The utility model provides a kind of injection self priming pump component, belongs to pump manufacturing technology field.It solves the problems such as existing injection self priming pump efficiency is low, noise is big.This injection self priming pump component, including impeller end cap and ejector, it is connected with jet pipe between ejector and impeller end cap, there is hollow jet chamber in jet pipe, impeller end cap includes lid ontology and surrounding edge, there is connecting platform at the center of lid ontology, there is connector at connecting platform center, several straightener(stator) blades are provided on the outer end face of lid ontology, each straightener(stator) blade is around connecting platform circumferential direction Rotating with Uniform setting, the tail end of straightener(stator) blade is provided with annular channel with matching, the oppositely extending lower face to lid ontology of annular channel forms a leakage fluid dram, and annular channel has the bottom plate being fixedly connected with the surrounding edge at lower face, the inlet for being provided with jet orifice on ejector and being interconnected with jet orifice.The utility model has the advantages that efficient stable, low noise.

Description

A kind of injection self priming pump component

Technical field

The utility model belongs to pump manufacturing technology field, is related to a kind of injection self priming pump, more particularly to a kind of injection self-priming Pump component.

Background technology

It is a kind of fluid driven pump to spray self priming pump, does not have machine driving and machine work component, it utilizes high pressure work The jet-action for making fluid carrys out trandfer fluid, is made of nozzle, mixing chamber and enlarged tube etc., for the sake of making smooth operation, in larynx One vacuum chamber is set at pipe；In order to enable two kinds of fluids to be sufficiently mixed, there is a mixing chamber behind vacuum chamber.When operation, Working fluid is sprayed with very high speed by nozzle, and low pressure is formed in vacuum chamber, makes to be conveyed liquid sucking vacuum chamber, then into Enter mixing chamber.The working fluid of high-energy and low energy are sufficiently mixed by conveying liquid in mixing chamber, and energy is made mutually to hand over It changes, speed is also gradually consistent, enters diffuser casing from trunnion, and speed slows down, and static pressure is gone up, and achievees the purpose that convey liquid.

It is mostly similar that self priming pump structure is sprayed present on existing market, and the water in pump is mainly passed through by biography by impeller It is dynamic to enter ejector, it then sprays and take the water of sucking from outlet out of, complete whole work process, in order to improve a point water efficiency, Many manufacturers have carried out improvement to the blade wheel structure being set in injection self priming pump and have often ignored to impeller intake The improvement at end, since impeller quickly rotates, can cause flow to go out in arrival end random motion in traditional impeller end cap The phenomenon that existing extrusion and collision, forms impact to impeller end cap and causes to wear, while also will produce noise.

Invention content

The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, provides a kind of efficient stable, low The injection self priming pump component of noise.

The purpose of this utility model can be realized by following technical proposal：A kind of injection self priming pump component, feature It is, including impeller end cap and ejector, jet pipe, the jet stream is connected between the ejector and impeller end cap It includes lid ontology and the enclosing towards both sides protrusion along lid body edges to have hollow jet chamber, the impeller end cap in pipe Side has outside end face axial projection at the center of the lid ontology, is used for the connecting platform in mating connection with jet pipe, There is the connector being connected with jet chamber at the connecting platform center, be provided on the outer end face of the lid ontology several A straightener(stator) blade, each straightener(stator) blade are arranged around connecting platform circumferential direction Rotating with Uniform, and the tail of each straightener(stator) blade End extends at the outer edge of lid ontology, and the tail end of each straightener(stator) blade is provided with annular channel with matching, institute The oppositely extending lower face to lid ontology of the annular channel stated forms a leakage fluid dram, and annular channel have with positioned at lower face The bottom plate that the surrounding edge at place is fixedly connected with, be provided on the ejector be provided at jet chamber opposite position jet orifice and with The interconnected inlet of jet orifice.

The technique effect of this injection self priming pump component is：Self priming pump is sprayed during the work time, due to the impeller in pump Rotation driving, can reduce the pressure of fluid near impeller, and the fluid of higher-pressure region can flow to low-pressure area, and impeller end is covered and set on end face The straightener(stator) blade set is integrated and is oriented to the fluid for flowing to impeller, and large impact was avoided to cause the damage of end cap, fluid warp It is entered at impeller work along the annular channel of blade end after over commutation blade, after impeller carries out centrifugation pressurization to fluid, Jet pipe is flowed to, is sprayed from jet port and low pressure water flow is driven to leave the pump housing.

In a kind of above-mentioned injection self priming pump component, the jet pipe is in pyramidal, and major diameter one end is towards leaf End cap is taken turns, and is provided with the matched retainer ring of the connecting platform covered with impeller end, path one end extends to inside ejector. When by jet pipe, since bore tapers into so that the energy that the fluid of process obtains becomes larger, and flow velocity gradually becomes faster, and carries Rise injection kinetic energy.

In a kind of above-mentioned injection self priming pump component, the jet orifice is in jet chamber on same axis, and In horn-like inside closing in, the bore of the jet orifice is less than the diameter of jet pipe path.So that the fluid ejected has Gather effect, thus obtains higher injection energy.

In a kind of above-mentioned injection self priming pump component, the part of the surrounding edge towards upper surface, which has, inwardly closes up Guard ring.The fluid leakage integrated in order to prevent improves the water inlet efficiency of injection self priming pump.

Compared with prior art, this injection self priming pump, which is covered with component in impeller end, is provided with straightener(stator) blade and annular flow Road helps lifting fluid capacity gauge, reduces energy loss caused by fluid impact surface of shell, has efficient stable, low noise The advantages of sound.

Description of the drawings

Fig. 1 is the general structure schematic diagram of this injection self priming pump component.

Fig. 2 is the structural schematic diagram of impeller end cap in this injection self priming pump component.

Fig. 3 is the structure sectional view of this injection self priming pump component.

In figure, 1, impeller end cap；2, ejector；3, jet pipe；4, jet chamber；5, lid ontology；6, connecting platform；7, it connects Mouthful；8, straightener(stator) blade；9, annular channel；10, leakage fluid dram；11, bottom plate；12, jet orifice；13, inlet；14, retainer ring；15, it protects Circle.

Specific implementation mode

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Figure 1 to Figure 3, this injection self priming pump component, including impeller end cap 1 and ejector 2, ejector 2 with Be connected with jet pipe 3 between impeller end cap 1, there is hollow jet chamber 4 in jet pipe 3, impeller end cap 1 include lid ontology 5 with And along 5 edge of lid ontology towards the surrounding edge of both sides protrusion, there is outside end face axial projection at the center of lid ontology 5, for penetrate The connecting platform 6 in mating connection of flow tube 3 has the connector 7 being connected with jet chamber 4, lid ontology at 6 center of connecting platform Several straightener(stator) blades 8 are provided on 5 outer end face, each straightener(stator) blade 8 is arranged around the circumferential Rotating with Uniform of connecting platform 6, And each the tail end of straightener(stator) blade 8 extends at the outer edge of lid ontology 5, the tail end of each straightener(stator) blade 8 is provided with phase therewith The annular channel 9 of cooperation, the oppositely extending lower face to lid ontology 5 of annular channel 9 form a leakage fluid dram 10, and annular channel 9 have the bottom plate 11 that is fixedly connected with the surrounding edge at lower face, be provided on ejector 2 at 4 opposite position of jet chamber The inlet 13 for being provided with jet orifice 12 and being interconnected with jet orifice 12.

It further describes in detail, jet pipe 3 is in pyramidal, and major diameter one end is provided with and impeller end cap towards impeller end cap 1 6 matched retainer ring 14 of connecting platform on 1, path one end extend to inside ejector 2, when by jet pipe 3, due to Bore tapers into so that the energy that the fluid of process obtains becomes larger, and flow velocity gradually becomes faster, and promotes injection kinetic energy.

In order to obtain higher injection energy, jet orifice 12 is in jet chamber 4 on same axis, and in horn-like inside It closes up, the bore of jet orifice 12 is less than the diameter of 3 path of jet pipe.

In order to improve the water inlet efficiency of injection self priming pump, the part of surrounding edge towards upper surface has the guard ring inwardly to close up 15。

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Although impeller end cap 1 is used more herein, ejector 2, jet pipe 3, jet chamber 4, lid ontology 5, connects and puts down Platform 6, connector 7, straightener(stator) blade 8, annular channel 9, leakage fluid dram 10, bottom plate 11, jet orifice 12, inlet 13, retainer ring 14, guard ring 15 equal terms, but it does not preclude the possibility of using other terms.The use of these items is only for more easily describing and Explain the essence of the utility model；Being construed as any one of the additional limitations all is disagreed with the spirit of the present invention 's.

Claims (4)

1. a kind of injection self priming pump component, which is characterized in that including impeller end cap（1）And ejector（2）, the jet stream Device（2）With impeller end cap（1）Between be connected with jet pipe（3）, the jet pipe（3）It is interior that there is hollow jet chamber（4）, institute The impeller end cap stated（1）Including lid ontology（5）And along lid ontology（5）Edge is towards the surrounding edge of both sides protrusion, the lid ontology （5）Center at there is outside end face axial projection, be used for and jet pipe（3）Connecting platform in mating connection（6）, described Connecting platform（6）Have at center and jet chamber（4）The connector being connected（7）, the lid ontology（5）Outer end face on be arranged There are several straightener(stator) blades（8）, each straightener(stator) blade（8）Around connecting platform（6）Circumferential Rotating with Uniform setting, and it is every A straightener(stator) blade（8）Tail end extend to lid ontology（5）Outer edge at, each straightener(stator) blade（8）Tail end be provided with Annular channel with matching（9）, the annular channel（9）It is oppositely extending to lid ontology（5）Lower face formed one Leakage fluid dram（10）, and annular channel（9）With the bottom plate being fixedly connected with the surrounding edge at lower face（11）, the ejector （2）On be provided with and jet chamber（4）Jet orifice is provided at opposite position（12）And and jet orifice（12）Interconnected Inlet（13）.

2. a kind of injection self priming pump component according to claim 1, which is characterized in that the jet pipe（3）In cone Mesa-shaped, major diameter one end is towards impeller end cap（1）, and be provided with and impeller end cap（1）On connecting platform（6）Matched card Circle（14）, path one end extends to ejector（2）It is internal.

3. a kind of injection self priming pump component according to claim 1, which is characterized in that the jet orifice（12）With penetrate Flow chamber（4）On same axis, and it is in horn-like inside closing in, the jet orifice（12）Bore be less than jet pipe（3）It is small The diameter of diameter.

4. a kind of injection self priming pump component according to claim 1, which is characterized in that the surrounding edge is towards upper surface Part there is the guard ring that inwardly closes up（15）.