Shaft type pump device with annular water inlet groove

A technology of water inlet trough and pump device, which is applied to water supply devices, waterway systems, drainage structures, etc., can solve the problems of poor water inlet conditions, turbulence, and easy formation of vortices of impellers, so as to reduce hydraulic loss, improve water inlet flow state, reduce The effect of energy consumption

Inactive Publication Date: 2018-01-16
YANGZHOU UNIV
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AI-Extracted Technical Summary

Problems solved by technology

However, in this wellbore water inlet form, the water flow is often turbulent when it enters the well from t...
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Method used

After crossbeam is made, be fixed on the shaft wall. After the crossbeam is installed, the water homogenizer can be hoist...
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Abstract

The invention discloses a shaft type pump device with an annular water inlet groove, and belongs to the technical field of hydraulic engineering. The shaft type pump device comprises a shaft, a pump section, a horn pipe, a water outlet pipe and a water inlet pipe, and is characterized in that a water distributing vessel is arranged and located above guide blades, the bottom of the inner wall of the water distributing vessel is flush with the bottom of the inner wall of the water inlet pipe, the top of the water distributing vessel is flush with the top of the inner wall of the water inlet pipe, the clear weight is equal to the diameter of the water inlet pipe, the water distributing vessel is directly connected with the water inlet pipe, and water flows into the water distributing vessel through the water inlet pipe and reaches an inlet of the horn pipe of the water pump through a water inlet groove. The pump device is suitable for various shaft type water inlet modes, the formation ofvortexes can be reduced to make the water flow more smoothly, the overall performance of the pump device is obviously improved, the energy is saved, and the consumption is reduced.

Application Domain

Technology Topic

Control engineeringHydraulic engineering +1

Image

  • Shaft type pump device with annular water inlet groove
  • Shaft type pump device with annular water inlet groove
  • Shaft type pump device with annular water inlet groove

Examples

  • Experimental program(1)

Example Embodiment

[0022] The invention is suitable for wellbore pump devices, and the drawing is designed according to the design requirements.
[0023] A well bore pump device with a ring-shaped water inlet groove includes a water inlet pipe 5, a water outlet pipe 6, a pump section 7, a horn tube 8, and a well bore 9, and a water homogenizing dish is arranged in the well.
[0024] For ease of installation, the homogenizing dish is divided into two halves, namely the homogenizing dish 1 on the inlet side and the homogenizing dish 2 on the outlet side. The shapes are symmetrical. The inlet pipe 5 is connected to the homogenizing dish 1 on the inlet side so that the water can flow from The water inlet pipe enters the homogenizing dish, and then overflows from the top of the homogenizing dish, flows into the annular water inlet tank 10, and reaches the entrance of the horn tube. The thickness of the bottom plate and the side wall of the uniform water dish are both 0.2D, and the net height is equal to the diameter of the inlet pipe. The outer diameter and the width of the inlet groove are based on the area of ​​the inlet groove and the diameter of the wellbore. D W The calculation confirms that the bottom of the inner wall of the homogenizing vessel is flush with the bottom of the inner wall of the water inlet pipe.
[0025] Under the water inlet side uniform water dish 1 and the outlet water side uniform water dish 2, respectively, a water inlet side beam 3 and a water outlet side beam 4 are provided for support. The beam can be made of I-beam or channel steel to meet the rigidity requirements.
[0026] After the beam is finished, it is fixed on the shaft wall. After the beam is installed, the homogenizing vessel can be hoisted into the well and fixed on the beam with bolts. The hoisting ring is reserved to facilitate future hoisting and maintenance.
[0027] The material of the homogenizing dish can be lighter materials such as aluminum alloy or materials such as glass steel.
[0028] The homogenizing dish is set up so that the water flows through the water inlet pipe to the homogenizing dish, and then flows into the water inlet tank from the periphery of the homogenizing dish in the form of overflow, and then enters the inlet of the pump bell pipe to achieve the goal of making the water flow even and smooth. Minimize the generation of vortex and improve the uniformity of water flow, thereby improving the uniformity of flow velocity at the impeller inlet. Therefore, the hydraulic loss in the wellbore will be reduced, and the efficiency of the pumping device will increase accordingly. The invention is suitable for various pump devices adopting wellbore water intake, can reduce the formation of vortex, make the water flow smoother, significantly improve the overall performance of the pump device, save energy and reduce consumption.
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Description & Claims & Application Information

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