Archimedes screw-based power generation water pumping and mountain torrent early warning device

Abstract

The utility model provides an Archimedes screw power generation water pumping and mountain torrent early warning device, which comprises a water pumping device fixed on a river bank, the water pumping device comprises a gearbox, an Archimedes screw, a cylindrical bushing and an excitation generator, the side surface of the cylindrical bushing is provided with a water inlet pipe, the water inlet pipe points to the left end of the river bank, and the gearbox is connected with the Archimedes screw. The lower end of the cylindrical lining is obliquely arranged and inserted into the right end of a river bank, the Archimedes screw is sleeved with the cylindrical lining in a sealed mode, the excitation generator is connected with the Archimedes screw through the gearbox, the gearbox is fixed to the top end of the cylindrical lining, the Archimedes screw is fixed to the bottom of the gearbox in a rotating mode, and the excitation generator is connected with the Archimedes screw through the gearbox. And the gearbox is connected with the top end of the Archimedes screw. In this way, the water level of the river bank can be controlled in the power generation process, and early warning can be conducted on the water level in advance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hydroelectricity, especially to a kind of based on Archimedes screw power generation pumping and mountain torrent early warning device. BACKGROUND

[0002] China is rich in water resources, actively developing water resources has become the top priority of the construction and development of China's electric power industry.Water power generation has the unique advantage of water energy resources in China, and it has high efficiency, low power generation cost, fast unit start-up and easy regulation.In addition, it has the characteristics of high quality, clean and environmental protection, and can be regenerated, and has less impact on the environment, which is unmatched by any other power production energy.Currently, China's water resources are facing a very serious situation, water shortage, serious water pollution and deterioration of water ecological environment, and other problems are becoming increasingly prominent, which has become the main bottleneck restricting the sustainable development of economy and society.Water resources are unevenly distributed in time, which brings difficulties to normal water use, such as less rainfall in spring when water is needed, and sometimes heavy rainfall in seasons with relatively low water demand, leading to the mismatch between rainfall and water use in time, which makes it inconvenient for the full use of water resources.On the other hand, due to excessive rainfall or excessive drought, flood disasters and drought disasters are easy to form, which will affect people's production and life.

[0003] The Chinese utility model patent with authorization number CN114738170 provides a sewage power generation device based on Archimedes screw, which comprises an outer pipeline and an inner pipeline arranged in each other, a screw is rotationally arranged in the inner pipeline, a first spiral blade is arranged on the screw, an annular cavity is formed between the outer pipeline and the inner pipeline, and one end of the annular cavity is arranged in a sealed manner.A passage for impacting the first spiral blade to rotate is arranged on the inner pipeline in a radial direction, the passage is in communication with the annular cavity, a generator is arranged on the outer pipeline, and the generator is in transmission connection with the screw.The device changes the flow direction of sewage through the passage, so that the sewage impacts the first spiral blade in the most direct way, changes the flow direction of the water flow in the entire inner pipeline, generates greater impact on the first spiral blade, increases the rotation intensity of the screw, reduces the dependence on the degree of fall and the degree of turbulent flow of sewage in the sewage treatment process, reduces the consideration of factors affecting power generation in the sewage treatment engineering design process, and avoids making many changes to meet the power generation device.

[0004] However, the above-mentioned sewage power generation device based on Archimedes screw has single function in use, so a solution is needed to improve this problem. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of based on Archimedes screw power generation pumping and mountain torrent early warning device, so that the water level of river bank can be controlled during power generation, and the water level can be warned in advance.

[0006] The utility model provides a kind of based on Archimedes screw power generation pumping and mountain torrent early warning device, including the pumping device being fixed on river bank, the pumping device includes gearbox, Archimedes screw, cylindrical bushing, the cylindrical bushing side is equipped with inlet pipe, and the inlet pipe is directed to river bank left end, the cylindrical bushing low end is obliquely placed and inserts river bank right end, the Archimedes screw sealing sleeve is connected in cylindrical bushing, and the gearbox is fixed in cylindrical bushing top end, the Archimedes screw rotation is fixed in gearbox bottom, the gearbox connects Archimedes screw top end.

[0007] The Archimedes screw is a cylindrical worm with an Archimedes helical face, the end face profile is an Archimedes spiral, the axial profile is a straight line, and the working principle is that the screw rotates around its own axis and rolls along the inner surface of the bushing, forming a sealed chamber of the pump. With the continuous rotation of the screw, the liquid in the sealed chamber is pushed forward by one pitch, and the liquid is pressed from one sealed chamber to another in a spiral manner, and finally discharged from the device.

[0008] Optionally, the cylindrical bushing side is equipped with a three-phase asynchronous motor, and the three-phase asynchronous motor is connected to the gearbox through a connecting rod.

[0009] The three-phase asynchronous motor drives the Archimedes screw shaft to rotate by engaging a gear with a certain number of teeth on the connecting rod into the gearbox.

[0010] Optionally, the other side of the cylindrical bushing is equipped with an excitation generator, and the excitation generator is connected to the gearbox through a connecting rod.

[0011] The Archimedes screw, excitation generator and three-phase asynchronous generator are integrated controlled by the gearbox. The excitation generator is installed on the upper end of the screw and is symmetrical with the three-phase asynchronous motor. The excitation generator generates electricity by engaging a gear with a certain number of teeth into the gearbox and being impacted by water flow.

[0012] Optionally, the top of the gearbox is equipped with a water quantity early warning device, and the water quantity early warning device is connected in parallel to a rotational speed monitor, a water level gauge and a rotational speed detector.

[0013] The water volume early warning device is configured, the rotation speed monitor, the water level meter and the rotation speed detector are connected in parallel and accessed into the early warning system to become the water volume early warning device, the water flow impacts the blade to drive the rotation shaft to rotate, the rotation speed monitor monitors the rotation speed of the rotation shaft in real time, when the water flow volume becomes larger, the flow speed increases to increase the rotation speed of the blade, and when the rotation speed of the rotation shaft exceeds a certain limit, early warning is sent, when the water level of the upstream device rises and exceeds the limit of the water level meter, the limit light is bright to alarm, double insurance guarantees early warning prompt, and certain flood control early warning pressure is relieved.

[0014] Optionally, the cylindrical bushing is detachably fixed on the Archimedes screw.

[0015] The above technical scheme facilitates the maintenance of the Archimedes screw and the gearbox. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A schematic diagram of an overall structure of the device is provided.

[0017] Figure 2 A partial sectional view of the device is provided.

[0018] The reference signs are explained as follows: 1, left end of a river bank; 2, right end of a river bank; 3, river bank; 31, three-phase asynchronous motor; 32, excitation generator; 41, circular bushing; 411, water inlet pipe; 42, Archimedes screw; 43, water volume early warning device; 44, gearbox. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Unless otherwise defined, the technical terms or scientific terms used herein should be understood as the common meanings by those skilled in the art to which the present application belongs. The similar words such as "comprise" used herein mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, and do not exclude other elements or objects.

[0020] The utility model discloses an early warning device of power generation and pumping based on Archimedes screw 42, it is characterized by, including the pumping device of fixed on the river bank 3, the pumping device includes gearbox 44, Archimedes screw 42, cylindrical bushing, the cylindrical bushing side is equipped with inlet pipe 411, and the inlet pipe 411 points to the river bank left end 1, the cylindrical bushing low end is obliquely arranged and inserts the river bank right end 2, the Archimedes screw 42 sealed sleeve is connected in the cylindrical bushing, and the gearbox 44 is fixed in the cylindrical bushing top, the Archimedes screw 42 rotation is fixed in the bottom of gearbox 44, the gearbox 44 connects Archimedes screw 42 top.

[0021] Reference Figure 1 Figure 2 When Archimedes screw 42 is placed in water, water flows into the cylindrical bushing through the upper inlet, impacting the Archimedes screw 42 blade, and the spiral structure is rotated counterclockwise under the impact of the water flow, and the excitation generator 32 is connected to generate electricity. The hollow cylindrical bushing, spiral blade and cylindrical groove in this arrangement have sufficient length difference. In addition, the lower end bearing is a water-lubricated bearing, which does not require lubricating oil and sealing, thus being environmentally friendly and reducing maintenance costs. The upper end of the screw shaft is connected to the gearbox 44 through a gear with a certain number of teeth and rotates with the shaft.

[0022] In some embodiments, the cylindrical bushing side is provided with a three-phase asynchronous motor 31, and the three-phase asynchronous motor 31 is connected to the gearbox 44 through a connecting rod.

[0023] In fact, when the three-phase asynchronous motor 31 drives the pump shaft to rotate clockwise, the screw rotates around its own axis and rolls along the inner surface of the bushing, thus forming a sealed chamber of the pump. With the continuous rotation of the screw, the liquid in the sealed chamber is pushed forward by one pitch, and finally squeezed out of the pump body.

[0024] In some embodiments, the cylindrical bushing is provided with an excitation generator 32 on the other side, and the excitation generator 32 is connected to the gearbox 44 through a connecting rod.

[0025] In fact, the upper end of the screw shaft is connected to the gearbox 44 through a gear with a certain number of teeth and rotates with the shaft, and the excitation generator 32 and the three-phase asynchronous motor 31 are connected to the gearbox 44 with appropriate gear ratios. Under different conditions, the excitation generator 32 can be connected to generate electricity or the three-phase asynchronous motor 31 can be connected to drive water pumping by using a switch.

[0026] In some embodiments, the top of the gearbox 44 is provided with a water quantity early warning device 43, which is connected to a speed monitor, a water level gauge and a speed detector.

[0027] In fact, the water level gauge and the rotating speed detector are connected in parallel to the early warning system to become the water volume early warning device 43, the water flow impacts the blades to drive the rotating shaft to rotate, the rotating speed monitor monitors the rotating speed of the rotating shaft in real time, when the water flow volume becomes larger, the flow speed increases to increase the rotating speed of the blades, and when the rotating speed of the rotating shaft exceeds a certain limit, an early warning is sent, when the water level upstream of the device rises and exceeds the limit of the water level gauge, the limit light is on to alarm, double insurance ensures early warning prompt, and certain flood control early warning pressure is relieved.

[0028] In some embodiments, the cylindrical bushing is detachably fixed on the Archimedes screw 42.

[0029] In fact, no gap between the cylindrical bushing and the Archimedes screw 42 can reduce water pumping and power generation water flow loss, does not produce backwater, and facilitates maintenance of the Archimedes screw 42 and the gearbox 44.

[0030] Although the embodiments of the present application have been described in detail above, it is obvious to those skilled in the art that various modifications and changes can be made to the embodiments. However, it should be understood that such modifications and changes are within the scope and spirit of the present application as described in the claims. Moreover, the present application described herein can have other embodiments and can be implemented or realized in various ways.

Claims

1. An Archimedes screw-based power generation and flood warning device, characterized in that, The utility model provides a river bank fixed pumping device, which comprises a gearbox, an Archimedes screw, a cylindrical bushing, an excitation generator, a water inlet pipe is arranged on the side of the cylindrical bushing, the water inlet pipe points to the left end of the river bank, the low end of the cylindrical bushing is obliquely arranged and inserted into the right end of the river bank, the Archimedes screw is sleeved in the cylindrical bushing, the excitation generator is connected with the Archimedes screw through the gearbox, the gearbox is fixed on the top end of the cylindrical bushing, the Archimedes screw is rotationally fixed on the bottom of the gearbox, and the gearbox is connected with the top end of the Archimedes screw.

2. The Archimedes screw based power generation, water pumping and flash flood warning device according to claim 1, wherein, A three-phase asynchronous motor is arranged on the side of the cylindrical bushing, and the three-phase asynchronous motor is connected with the gearbox through a connecting rod.

3. The Archimedes screw based power generation, water pumping and flash flood warning device according to claim 2, wherein, An excitation generator is arranged on the other side of the cylindrical bushing, and the excitation generator is connected with the gearbox through a connecting rod.

4. The Archimedes screw-based power generation, water pumping and flash flood warning device according to claim 3, characterized in that, A water volume early warning device is arranged on the top of the gearbox, and the water volume early warning device is connected with a rotation speed monitor, a water level gauge and a rotation speed detector in parallel.

5. The Archimedes screw based power generation, water pumping and flash flood warning device according to claim 4, wherein, The cylindrical bushing can be detachably fixed on the Archimedes screw.

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