CN202867240U - Two-stage water turbine pump - Google Patents

Abstract

The utility model provides a two-stage turbine pump which comprises a pump body and a pump shaft, wherein the pump shaft is installed in the bump body. The bump body comprises a water turbine cavity and a pump cavity. The water turbine cavity is located above the pump cavity. The pump shaft is divided into a first segment shaft located in the water turbine cavity and a second segment shaft located in pump cavity. Two homodromous impellers are fixed on the first segment shaft. Guide vanes are arranged on the in-wall of an impeller corresponds to the water turbine cavity. The guide vanes are several. An axis around with the pump shaft is installed in a screwing and radial pattern. A first water inlet is arranged above the bump body and communicated with the water turbine cavity. A first water outlet which can enable the water to uptrend is arranged at the bottom of the water turbine cavity. A runner is fixed on the second segment shaft. The bump body which corresponds to the runner is provided with a water guiding base. The water guiding base is composed of guide vanes. The pump body is provided with a second water inlet which can enable the water current to flow into bump cavity. A second water outlet is arranged at the bottom end of the pump body.

Description

The two-stage turbine pump

Technical field

The utility model relates to water lift equipment, relates in particular to a kind of turbine pump, and concrete is the two-stage turbine pump.

Background technique

Turbine pump is a kind of water lift of environmental protection and energy saving, the water lift machine that it is comprised of by certain way water turbine and water pump, current with certain energy drive the abundant waterpower resourses of rotary wheel of water turbine utilization and carry out water lift, and not power consumption, oil consumption, turbine pump be not as important developing direction in the middle of people's farming, woods, animal husbandry production, the domestic water.

Thereby traditional turbine pump generally is to adopt an impeller to rotate the drive current to raise up, the driving force of an impeller is limited, so that the turbine pump lift of this structure is limited, if need to reach higher lift, even it also is of no avail having increased the rotating speed of impeller, therefore, the turbine pump of this structure and be not suitable with present market.

The model utility content

It is wide that the technical problem that the utility model mainly solves provides a kind of water lift scope, can make things convenient for type selecting direction and compact structure, high-lift two-stage turbine pump.

For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of two-stage turbine pump is provided, comprise the pump housing and the rotating pump shaft that is arranged in the pump housing, the described pump housing comprises water wheels chamber and pump chamber, described water wheels chamber is positioned at the top of pump chamber, and pump shaft is divided into the first paragraph axle that is positioned at the water wheels chamber and the second segment axle that is positioned at pump chamber;

Fix two impellers in the same way on the described first paragraph axle, be provided with stator on the inwall of the corresponding impeller in described water wheels chamber, described stator is a plurality of, and the axis that centers on pump shaft is the radial setting of spiral; The top of the described pump housing is provided with the first water intake that communicates for the water wheels chamber, and the bottom in described water wheels chamber is provided with and makes the first water outlet of raising waterborne; Be fixed with runner on described the second end axle, corresponding runner is provided with water guide stand on the described pump housing, and described water guide stand is comprised of described stator, and being provided with on the described pump housing supplies water flows into the second water intake of pump chamber, and the bottom of the described pump housing is provided with the second water outlet.

Wherein, described runner has four rotating vanes, and described water guide stand is comprised of 16 described stators.

Wherein, offer groove on the described impeller, corresponding two impeller locations offer keyway on the described main shaft, and described impeller and pump shaft are fastened to each other by flat key.

Wherein, described pump shaft is arranged on the pump housing rotationally by deep groove ball bearing and guide bearing, and the material of described guide bearing is rubber.

Wherein, the top of the described pump housing is provided with bearing support, and described deep groove ball bearing is arranged in the bearing support, and described pump shaft stretches in the bearing support and with deep groove ball bearing and cooperates, and the outlet end of described pump shaft and bearing support is provided with oil sealing and spiral seal cover.

Wherein, described the first water intake is horn-like water intake, and large mouthful of horn-like water intake up.

Wherein, the first water intake of the described pump housing is equipped with the filter screen that prevents that the pasture and water foreign material from entering.

The beneficial effects of the utility model are: two coaxial in the same way installations of impeller, the topmost part of the pump housing is water intake, the outlet of water outflow first order impeller enters second level impeller by flow channel type guide blade import, its outlet current compile rear output by pump case, this structure is so that finally pass through the bigcatkin willow Cheng Guang of the first water outlet, compact overall structure, easy to operate, reduce the current loss, increase head ratio, improve utilization ratio, applied widely.

Description of drawings

Fig. 1 is the structural representation of two-stage turbine pump in the utility model one mode of execution.

Label declaration: the 1-pump housing; 11-water wheels chamber; 111-the first water intake; 112-the first water outlet; The 12-pump chamber; 121-the second water intake; 122-the second water outlet; The 13-water guide stand; The 2-pump shaft; 31-first order impeller; 32-second level impeller; The 4-stator; The 5-runner; The 6-guide bearing; The 7-bearing support; The 71-bearing cap; The 8-filter screen; The 9-flat key; 100-spiral seal body; 101-spiral seal cover; The 102-oil sealing.

Embodiment

By describing technology contents of the present utility model, structure characteristics in detail, realized purpose and effect, below in conjunction with mode of execution and cooperate that accompanying drawing is detailed to give explanation.

See also Fig. 1, present embodiment provides a kind of two-stage turbine pump, comprise the pump housing 1 and the rotating pump shaft 2 that is arranged in the pump housing 1, the described pump housing 1 comprises water wheels chamber 11 and pump chamber 12, described water wheels chamber 11 is positioned at the top of pump chamber 12, and pump shaft 2 is divided into the first paragraph axle that is positioned at water wheels chamber 11 and the second segment axle that is positioned at pump chamber 12; Fix two impellers (first order impeller 31, second level impeller 32) in the same way on the described first paragraph axle, be provided with stator 4 on the inwall of described water wheels chamber 11 corresponding impellers (first order impeller 31), described stator 4 is a plurality of, is the radial setting of spiral around axis; The top of the described pump housing 1 is provided with the first water intake 111 that communicates for water wheels chamber 11, and the bottom in described water wheels chamber 11 is provided with and makes the first water outlet 112 of raising waterborne; Be fixed with runner 5 on described the second end axle, corresponding runner 5 is provided with water guide stand 13 on the described pump housing 1, and being provided with on the described pump housing 1 supplies water flows into the second water intake 121 of pump chamber 12, and the bottom of the described pump housing 1 is provided with the second water outlet 122.

In the present embodiment, described impeller (first order impeller 31, second level impeller 32) has the rotation positioning relation with pump shaft 2, be described pump shaft 2 and impeller (first order impeller 31, second level impeller 32) rotates synchronously, concrete, described impeller (first order impeller 31, second level impeller 32) offers groove on, corresponding two impeller (first order impellers 31 on the described main shaft, second level impeller 32) position offers keyway, described impeller (first order impeller 31, second level impeller 32) fastened to each other by flat key 9 with pump shaft 2, key snaps in keyway and the groove, and rotates synchronously.Certainly, this is a kind of mode of execution of the present utility model, can adopt in other mode of executions, and splined shaft is realized with modes such as cooperating of impeller (first order impeller 31, second level impeller 32).

In above-mentioned enforcement, described runner 5 has four rotating vanes, and described water guide stand 13 is comprised of 16 described stators 4.

Concrete, described pump shaft 2 rotating being arranged on the pump housing 1, it can be realized by bearing, concrete is the bidirectional axial force that bears the on-stream generation of turbine pump by deep groove ball bearing, certainly, present embodiment does not limit the type of bearing, also can adopt radial ball bearing etc. to realize the purpose of this utility model, on the other hand, near being provided with guide bearing 6 on the bearing of runner 5, guide bearing 6 is that it is replaceable in the bearing hole of the water guide shell (the water guide shell is to be the arcuate surface that the water that the second water intake 121 enters is led in the water pump chamber 12) that directly is contained in the pump housing 1, concrete its is to adopt the rubber manufacturing, guaranteed the adhesion that it is surperficial.

In the present embodiment, the top of the described pump housing 1 is provided with bearing support 7, be provided with the hole that penetrates for pump shaft 2 in the bearing support 7, be provided with the step of adaptive deep groove ball bearing on the hole, its tail end is fixed a bearing cap 71, described deep groove ball bearing is arranged in the bearing support 7, and described pump shaft 2 stretches in the bearing support 7 and with deep groove ball bearing and cooperates.

In other embodiment, for the leakage that prevents lubricant oil and the intrusion of silt, be provided with oil sealing 102 and spiral seal cover 101 at the outlet end of described pump shaft 2 and bearing support 7.Spiral seal cover 101 cooperatively interacts with spiral seal body 100 and plays seal action, and as the first layer protection of described pump shaft 2 with the outlet end of bearing support 7, oil sealing 102 plays the effect of second layer protection.

In the present embodiment, side by side equidistant being arranged on the pump shaft 2 of described impeller (first order impeller 31, second level impeller 32), more evenly laborsaving when making it drive again the current rotation.

Present embodiment, described the first water intake 111 is horn-like water intake, and large mouthful of horn-like water intake is up, and trumpet-shaped water intake can increase the flow velocity that flows into the first water intake 111, has further improved the lift of the first water outlet 112.

In the present embodiment, the first water intake 111 of the described pump housing 1 is fixed with the filter screen 8 that prevents that the pasture and water foreign material from entering, and has guaranteed water quality.

During operation, at first the pump housing 1 is fixed on the place that need to move water, concrete, the hole that can the bottom surface by the pump housing 1 arranges again ordinatedly foot bolt fix, water is because action of gravitation afterwards, enter through blower inlet casing from second water-inlet cavity in water pump chamber 12 and to flow to runner 5, be provided with water guide stand 13 on the pump housing 1 of runner 5 correspondences, water guide stand 13 is to form by 16 fixed guide vanes 4 in the present embodiment, have several angle, namely form one and be the setting of spiral reflection shape around pump shaft 2 axis, the water of inflow can impact runner 5 along certain orientation, accelerated the rotation of runner 5, water can flow out by the second water outlet 122 afterwards;

After pump shaft 2 rotates, impeller is rotated, impeller is divided into first order impeller 31, second level impeller 32 from top to bottom, water flows into from the first water intake 111, stator 4 by flow channel type enters first order impeller 31, first order impeller 31 begins to rotate, and the centrifugal force of generation is delivered to the water intake of second level impeller 32 with water, and finally flows out from the first water outlet 112 of 11 bottoms, water wheels chamber.In the utility model, stator 4 designs of flow channel type, minimum is down in loss, can collect high-speed liquid, kinetic energy is become pressure energy, guide equably the high-speed liquid that first order impeller 31 flows out into second level impeller 32, by the drive of both stage impellers (first order impeller 31, second level impeller 32), so that the final outflow water lift improves greatly.

The operating index of concrete two-stage turbine pump is as shown in the table:

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims (7)

1. two-stage turbine pump, it is characterized in that comprise the pump housing and the rotating pump shaft that is arranged in the pump housing, the described pump housing comprises water wheels chamber and pump chamber, described water wheels chamber is positioned at the top of pump chamber, and pump shaft is divided into the first paragraph axle that is positioned at the water wheels chamber and the second segment axle that is positioned at pump chamber;

Fix two impellers in the same way on the described first paragraph axle, be provided with stator on the inwall of the corresponding impeller in described water wheels chamber, described stator is a plurality of, and the axis that centers on pump shaft is the radial setting of spiral;

The top of the described pump housing is provided with the first water intake that communicates for the water wheels chamber, and the bottom in described water wheels chamber is provided with and makes the first water outlet of raising waterborne;

Be fixed with runner on described the second end axle, corresponding runner is provided with water guide stand on the described pump housing, and described water guide stand is comprised of described stator, and being provided with on the described pump housing supplies water flows into the second water intake of pump chamber, and the bottom of the described pump housing is provided with the second water outlet.

2. two-stage turbine pump according to claim 1 is characterized in that, described runner has four rotating vanes, and described water guide stand is comprised of 16 described stators.

3. two-stage turbine pump according to claim 1 and 2 is characterized in that, offers groove on the described impeller, and corresponding two impeller locations offer keyway on the described main shaft, and described impeller and pump shaft are fastened to each other by flat key.

4. two-stage turbine pump according to claim 1 is characterized in that, described pump shaft is arranged on the pump housing rotationally by deep groove ball bearing and guide bearing, and the material of described guide bearing is rubber.

5. two-stage turbine pump according to claim 4, it is characterized in that, the top of the described pump housing is provided with bearing support, described deep groove ball bearing is arranged in the bearing support, described pump shaft stretches in the bearing support and with deep groove ball bearing and cooperates, and the outlet end of described pump shaft and bearing support is provided with oil sealing and spiral seal cover.

6. two-stage turbine pump according to claim 1 is characterized in that, described the first water intake is horn-like water intake, and large mouthful of horn-like water intake up.

7. two-stage turbine pump according to claim 6 is characterized in that, the first water intake of the described pump housing is equipped with the filter screen that prevents that the pasture and water foreign material from entering.