Natural energy full-hydraulic water lifting device based on pure water hydraulic transmission technology

Abstract

A natural energy full-hydraulic water lifting device based on the pure water hydraulic transmission technology is characterized in that a retaining dam is arranged at a power water source, a power water reservoir is formed after water storage, a high-pressure water tank is arranged at the position H lower than the horizontal plane of the reservoir, a water taking opening is formed in the retaining dam, and a drainage water pipe is connected with the water taking opening and the high-pressure water tank; the high-pressure water tank is connected to the high-lift water pump hydraulically driven by pure water through a high-pressure water tank water outlet pipe, one end of a water pump water outlet pipe on the high-lift water pump hydraulically driven by pure water is connected with the high-lift water pump, the other end is connected to a destination reservoir, and a water pump water inlet pipe is connected to a water source to be lifted; the device is provided with various detection units and control units, and the automatic control device consists of an execution unit and a PLC (Programmable Logic Controller). The utility model has the characteristics of high energy utilization efficiency, high water lift, simple structure, low manufacturing cost, energy conservation and the like. The water lifting device can be widely applied to water lifting in water-deficient mountainous areas, in particular to water lifting in mountainous areas in which the height difference between the water source location and the water using place is large.

Description

Technical Field

[0001] The utility model relates to a device which utilizes the original energy of natural water flow to lift water from a low position to a high position, in particular to a natural energy full hydraulic water lifting device based on pure water hydraulic transmission technology. Background Art

[0002] my country's terrain features more mountains and fewer plains. There is a widespread problem of insufficient water supply in mountainous areas, and it is difficult to use water for production and life in many places. Although there are rivers in many mountainous areas and streams in the gullies, in most cases the water flows down the mountain, and there is a serious shortage of water in the mountains. To be precise, these places are not without water, but the water source is at a low level, and the water-using place is at a high level. The difference in altitude between the two is large, and the altitude difference in some places is hundreds of meters or even thousands of meters. If the currently commonly used electric motor and diesel engine oil are used to drive the water pump, the cost of water use is very high and cannot meet the needs of production and life at all. Therefore, how to economically and conveniently send low-level water to water-scarce areas in mountainous areas is a topic that needs to be solved urgently. Since the problem of water shortage is common in mountainous areas in my country, solving this problem has significant social and economic benefits.

[0003] In recent years, some water-lifting technologies and methods have emerged based on the use of the original energy of natural water flow, combining hydraulic and pneumatic technologies. Since the entire water-lifting process uses the natural potential energy of high-level dynamic water, it does not require the provision of additional electricity or the consumption of resources such as oil and coal, so it is called natural energy water-lifting. For the convenience of description, it will be referred to as "natural energy hydraulic and pneumatic water-lifting technology" in the following discussion. Its structure and principle are briefly described as follows: According to the information, see Figure 6 The basic principle of the natural energy liquid-gas pressure water lifting technology currently in use is: use a water barrier ⑥ to block water, and divert the power water ⑧ at a high position as power through a water diversion pipe ④ to a lower place. An air inlet ⑤ is provided above the pipe, and the negative pressure generated by the high-speed flowing water is used to suck air into the pipe and mix it with water. The flowing water carries the air downward. When the flowing water reaches the low-level gas-liquid separation chamber ①, the flow rate decreases, the water pressure increases, and the air is separated from the water and floats up, thus forming high-pressure air. The water after gas separation flows out from the drainage pipe ②. The high-pressure air enters the gas-liquid pump ⑦ through the gas transmission pipe ③. With this high-pressure air as power, the water source water at a low position is pressed through the gas-liquid pump through the water transmission pipe ⑨ to the high-level destination water storage tank ⑩, thus completing the whole process of water lifting. From the perspective of energy conversion, this type of device converts the potential energy of the high-level power water into the pressure energy of the inhaled air. When the high-pressure air presses the water from the water source to the destination water tank, the pressure energy of the air is converted back into the potential energy of the water.

[0004] The Chinese patent document "Head difference pressure conversion continuous water pumping device" patent number 201320224475.X introduces a similar water pumping device. Such devices generally have the problems of low power water energy utilization efficiency and small water pumping head.

[0005] The patent application number 202111400894.X for "A water-lifting device combining hydraulic pressure and gas pressure based on natural energy" disclosed in Chinese patent literature involves gas-liquid energy conversion, but the structure is very complex, difficult to implement, and the lift cannot be guaranteed.

[0006] The "A natural energy water pumping system based on big data" patent application number 201910344522.5) disclosed in Chinese patent literature has the problem of small water lifting head.

[0007] For water lifting projects, there are two most basic indicators: one is the water lifting volume, and the other is the water lifting head. The water lifting volume of natural energy liquid and gas pressure water lifting technology depends on the volume of high-pressure air, while the water lifting head depends on the pressure of high-pressure air. How to obtain as much high-pressure air as possible and increase the pressure of high-pressure air is the key to the success or failure of the water lifting system. According to the requirements for improving the basic indicators of water lifting projects, the current natural energy liquid and gas pressure water lifting technology has the following problems:

[0008] 1. Low energy utilization

[0009] According to the principle of energy conservation, after the drainage power water reaches the gas-liquid separation box, high-pressure air and high-pressure water are generated at the same time. Ignoring the energy loss caused by the pipeline and the internal friction of the gas-liquid two-phase flow during the drainage process, it should meet the following requirements:

[0010] Dynamic water potential energy = high-pressure air pressure energy + high-pressure water pressure energy············(I)

[0011] When using the currently used natural energy liquid-gas pressure water-lifting technology to lift water, the pressure energy of high-pressure air is used to do the work of lifting water. However, in the process of lifting water, in addition to the high-pressure air pressure energy being utilized, the pressure energy of high-pressure water is lost in vain, and the energy utilization rate is very low. This results in a small effective water lifting volume when the power water flow rate is constant. In other words, when the effective water lifting volume is constant, a large flow of power water is required to match it. Invisibly, an access threshold for the power water source flow rate is set, which limits the expansion of the applicable area and beneficiary population of natural energy water-lifting technology.

[0012] 2. Water lifting problem

[0013] According to the basic principles of fluid mechanics, the high-pressure air pressure generated by the natural energy hydraulic water-pneumatic pumping technology is equal to the high-pressure water pressure, denoted as P. The drainage drop of the power water is referred to as the power head, denoted as H. Ignoring the pipeline loss, there are:

[0014] P=ρgG····················(II)

[0015] Since the pressure of high-pressure air is equal to the pressure of high-pressure water, ignoring the pipeline loss, and denoting the water lifting head as h, we have:

[0016] P=ρgh=ρgH·················(III)

[0017] According to equations II and III, under ideal conditions: h=H·················(IV)

[0018] Considering that there will inevitably be energy loss in the water lifting process, if the high-pressure air is used directly to lift water without secondary pressurization, the water lifting head h will inevitably be less than the dynamic water head H. Due to this limitation, such a head cannot meet the water supply demand in many cases. The existing natural energy liquid gas pressure water lifting technology has not been able to solve the above two problems well. Summary of the invention

[0019] The utility model aims at the problems of low energy utilization efficiency, small lift and complex structure in the existing natural energy water pumping technology, and provides a new technical solution of a natural energy full hydraulic water pumping device based on pure water hydraulic transmission technology.

[0020] The utility model is realized through the following technical scheme: a natural energy full hydraulic water lifting device based on pure water hydraulic transmission technology, characterized in that a water retaining dam is arranged at the power water source, a power water reservoir is formed after water is stored, a high-pressure water tank is arranged at an altitude lower than the horizontal plane H of the reservoir, a water intake lower than the horizontal plane of the reservoir is arranged on the water retaining dam, the water intake and the high-pressure water tank are connected with a drainage water pipe, the water outlet of the high-pressure water tank is connected with a high-lift water pump driven by pure water hydraulic pressure by a water outlet pipe of the high-pressure water tank, a water pump drain pipe and a water pump inlet pipe are arranged on the high-lift water pump driven by pure water hydraulic pressure, one end of the water pump outlet pipe is connected to the high-lift water pump, and the other end is connected to the destination reservoir, and the water pump inlet pipe is connected to the water source to be lifted; the device is provided with an automatic control device.

[0021] The structure of the high-pressure water tank is as follows: a high-pressure water outlet pipe communicating with the inner cavity of the tank is provided at the upper part of the hollow and closed water tank body, the other end of the high-pressure water outlet pipe is connected to the outlet pipe of the high-pressure water tank, the outlet pipe of the high-pressure water is provided with an outlet valve, an outlet filter and a flow meter in sequence near the tank body, a power water inlet pipe leading to the inner cavity of the tank body is provided at the lower part of the tank body, the other end of the power water inlet pipe is connected to the drainage pipe, the end of the power water inlet pipe near the water tank body is provided with an inlet valve and an inlet filter in sequence, a pressure sensor, a pressure gauge and a liquid level gauge are provided at the upper part of the tank body, a safety valve is provided at the top of the tank body, and a tank inner cavity cleaning device is provided on the tank body. The structure of the tank inner cavity cleaning device is as follows: a manhole communicating with the inner cavity of the water tank and a detachably connected cover plate are provided on one side of the tank body, a sewage outlet and a sewage valve are provided at the bottom of the tank body; the cross section of the water tank body is circular or rectangular. The flow meter and pressure sensor are connected to the automatic control device.

[0022] The altitude is lower than the water level H of the reservoir, where the high pressure water tank is set at H>1 meter.

[0023] The automatic control device includes: a detection unit composed of a pressure sensor, a liquid level meter, and a flow meter; an execution unit composed of a pneumatic control valve, a hydraulic control valve, a gate valve, and a check valve; a data acquisition element, a transmission network, and a display constitute a signal and data exchange unit. A PLC programmable controller serves as a control unit, runs according to a customized program, and coordinates the automatic operation of each control unit; realizes the collection, transmission, display, and storage of basic parameters such as pressure, flow, and liquid level of a natural energy full-hydraulic water lifting device based on pure water hydraulic transmission technology; automatically generates and stores an operation log, which includes operating status parameters describing the water lifting volume, power water flow, operating time, fault type and occurrence time, and recovery time; the control method has two modes: on-site manual control and remote automatic control.

[0024] The basic principle of the utility model is to guide the high-level power water to the lower level through the pipeline. When it reaches the low-level water tank, the water in the water tank has pressure due to gravity, and the water tank becomes a high-pressure water source. The high-pressure water is used as the power of the pure water hydraulic drive device to drive the high-lift water pump to pressurize the water from the water source to the high-level destination water tank, thus realizing a complete water lifting process.

[0025] Compared with the currently used natural energy liquid and gas pressure water pumping technology, the most important difference of the utility model is that the liquid and gas energy conversion link in the energy conversion is eliminated, and high-pressure water is directly used to drive the high-lift water pump to pump water. The technical basis is pure water hydraulic transmission technology, so it is called a natural energy full hydraulic water pumping method. Since the conversion between the two energy forms of liquid and gas is no longer involved, there is of course no energy loss that is inevitable in this conversion process. While the energy utilization efficiency is improved, the system itself is also greatly simplified.

[0026] In the natural energy full hydraulic water pumping device involved in the utility model, if the pipeline energy loss in the drainage process is ignored, the following conditions shall be met:

[0027] Dynamic water potential energy = high pressure water pressure energy···············(V)

[0028] Since the pressure energy of high-pressure water is used to do the work of water lifting in the utility model, the available effective energy is theoretically 100% under the condition of the same power water flow rate. With this increased energy base to lift water, the water lifting efficiency and water lifting volume will naturally be greatly improved. Compared with the traditional natural energy water lifting technology, the utility model uses high-pressure water as the power and adopts pure water hydraulic transmission to directly drive the high-pressure water pump to lift water. The utility model designed accordingly has the following characteristics: 1. High energy utilization efficiency. Since the high-pressure water energy generated by the power water drainage is all used for water lifting, the available effective energy base is large, and the power water volume required for the same effective water lifting volume is small. 2. High water lifting head. The water lifting head h is set by the parameters of the high-lift water pump driven by pure water hydraulic pressure. The specific working parameters can be preset and changed according to requirements. It is not limited by the power water drainage drop and can far exceed the power water head H. 3. Simple structure. Compared with the existing natural energy liquid-gas pressure water lifting technology, the links of liquid and gas energy conversion and air pressurization are omitted, and the structure of the water lifting device is greatly simplified. Under the condition of the same water lifting capacity, the equipment cost is low and the performance-price ratio is better. 4. The utility model uses high-pressure water as the power, does not consume other additional energy, and can be used wherever high-level power water can be found. The utility model can be widely used in mountainous areas where there is a large height difference between the water source and the water use location. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the utility model structure

[0030] Figure 2 This is a schematic diagram of the high-pressure water tank structure of the utility model

[0031] Figure 3 This is a structural diagram of the utility model of a high-lift water pump reversing valve driven by pure water hydraulic pressure when it is in the left position.

[0032] Figure 4 This is a schematic diagram of the structure of the high-lift water pump reversing valve driven by pure water hydraulic pressure when it is in the right position.

[0033] Figure 5 This is the automatic control system block diagram of the utility model

[0034] Figure 6 This is the principle diagram of the existing natural energy liquid and gas pressure water extraction technology

[0035] Figure 1In the figure: (1) is the dam, (2) is the diversion pipe, (3) is the high-pressure water tank, (4) is the outlet pipe of the high-pressure water tank, (5) is the water pump discharge pipe, (6) is the high-lift water pump driven by pure water hydraulic pressure, (7) is the water pump inlet pipe, (8) is the water pump outlet pipe, and (9) is the destination water reservoir;

[0036] Figure 2 In the embodiment, (301) is a water tank, (302) is a water outlet valve, (303) is a water outlet filter, (304) is a flow meter, (305) is a high-pressure water outlet pipe, (306) is a manhole and cover for cleaning, (307) is a sewage valve, (308) is a water inlet filter, (309) is a water inlet valve, (310) is a power water inlet pipe, (311) is a pressure sensor, (312) is a pressure gauge, (313) is a liquid level gauge, (314) is a safety valve, etc.;

[0037] Figure 3 and Figure 4 In the figure: (601) is the driving cylinder, (602) is the driving cylinder piston, (603) is the water pump cylinder, (604) is the water pump cylinder piston, (605) is the bolt, (606) is the connecting plate, (607) is the water pump cylinder water inlet pipe, (608) is the left water inlet check valve, (609) is the right water inlet check valve, (610) is the left water outlet check valve, (611) is the right water outlet check valve, (612) is the water pump cylinder water outlet pipe, (613) is the driving cylinder water inlet pipe, (614) is the driving cylinder water return pipe, (615) is the reversing valve; (616) is the base;

[0038] Figure 6 In the figure: ① is the gas-liquid separation chamber, ② is the drainage pipe, ③ is the gas transmission pipe, ④ is the water diversion pipe, ⑤ is the air inlet, ⑥ is the water retaining dam, ⑦ is the gas-liquid pump, ⑧ is the power water, ⑨ is the water transmission pipe, and ⑩ is the destination water reservoir. DETAILED DESCRIPTION

[0039] A specific structure of a natural energy full hydraulic water pumping device based on pure water hydraulic transmission technology: a water retaining dam (1) is set at a power water source, and a power water reservoir is formed after water is stored. A high-pressure water tank (3) is set at an altitude lower than the water reservoir level H, H>1 meter, and H is set according to the power water intake site conditions. A water intake below the water reservoir level is set on the water retaining dam, and the water intake and the high-pressure water tank (3) are connected by a drainage water pipe (2). The water outlet of the high-pressure water tank is connected by a high-pressure water pipe (4), and the other end of the high-pressure water pipe is connected to a pure water hydraulically driven high-lift water pump (6). The pure water hydraulically driven high-lift water pump is provided with a water pump drainage pipe (5) and a water pump inlet pipe (7). One end of the water pump outlet pipe (8) is connected to the high-lift water pump, and the other end is connected to the destination water reservoir (9). The water pump inlet pipe (7) is connected to the water source to be pumped. The natural energy full hydraulic water pumping device based on pure water hydraulic transmission technology is provided with an automatic control device.

[0040] The structure of the high-pressure water tank is as follows: a high-pressure water outlet pipe (305) communicating with the inner cavity of the tank body is provided at the upper part of the hollow and closed water tank body (301); the other end of the high-pressure water outlet pipe is connected to the high-pressure water tank outlet pipe (4); the high-pressure water outlet pipe is provided with an outlet valve (302), an outlet filter (303), and a flow meter (304) in sequence near the tank body; a power water inlet pipe (310) leading to the inner cavity of the tank body is provided at the lower part of the tank body; the other end of the power water inlet pipe is connected to the drainage pipe (2); an inlet valve (309) and an inlet filter (308) are provided at one end of the power water inlet pipe near the water tank body; a pressure sensor (311), a pressure gauge (312), and a liquid level gauge (313) are provided at the upper part of the tank body; a safety valve (314) is provided at the top of the tank body; and a tank inner cavity cleaning device is provided on the tank body. The structure of the tank inner cavity cleaning device is as follows: a manhole communicating with the inner cavity of the water tank and a detachably connected cover plate (306) are provided on one side of the tank body, and a sewage outlet and a sewage valve (307) are provided at the bottom of the tank body; the cross section of the water tank body (301) is circular or rectangular.

[0041] The structure of the pure water hydraulically driven high-lift water pump (6) is as follows: the pure water hydraulically driven high-lift water pump is provided with a driving cylinder (601) and a water pump cylinder (603); the inner cavity of the driving cylinder is provided with a driving cylinder piston (602) which can reciprocate along the inner cavity axis of the driving cylinder; the left end of the driving cylinder piston is the A1 cavity of the driving cylinder, and the right end of the driving cylinder piston is the A2 cavity of the driving cylinder; the inner cavity of the water pump cylinder is provided with a water pump cylinder piston (604) which can reciprocate along the inner cavity axis of the water pump cylinder; The left end of the water pump cylinder piston is the B1 chamber of the water pump cylinder, and the right end of the water pump cylinder piston is the B2 chamber of the water pump cylinder; the pure water hydraulically driven high-lift water pump is provided with a reciprocating motion device that enables the driving cylinder piston and the water pump cylinder piston to reciprocate along the inner chambers of their respective cylinder bodies at the same time; the driving cylinder (601) is provided with a driving reversing device that can alternately supply high-pressure water to the A1 chamber and the A2 chamber of the driving cylinder and discharge water; the water pump cylinder (603) is provided with a water supply device that can alternately supply water to the B1 chamber and the B2 chamber and discharge water.

[0042] The structure of the reciprocating motion device is as follows: the axes of the drive cylinder body and the water pump cylinder body are parallel to each other and fixedly connected to the base (616); the axes of the piston rod of the drive cylinder and the piston rod of the water pump cylinder are parallel to each other and fixedly connected to the connecting plate (606) by bolts (605) and other fasteners; the drive cylinder piston (602) is fixedly connected to its own piston rod by means of pins, keys, rivets or integral manufacturing; the outer circle of the piston is sealed according to conventional technology and connected to the inner wall of the inner cavity of the drive cylinder in an axially slidable manner along the cylinder wall; both ends of the drive cylinder supporting the piston rod are sealed and slidably connected to the piston rod according to conventional technology; the water pump cylinder piston (604) is fixedly connected to its own piston rod by means of pins, keys, rivets or integral manufacturing; the outer circle of the piston is sealed according to conventional technology and connected to the inner wall of the inner cavity of the water pump cylinder in an axially slidable manner along the cylinder wall; both ends of the water pump cylinder supporting the piston rod are sealed and slidably connected to the piston rod according to conventional technology.

[0043] The structure of the driving device is as follows: the driving cylinder water inlet pipe (613) connected to the high-pressure water tank water outlet pipe (4) is connected to the reversing valve (615), two water pipes are led out of the reversing valve, one leads to the left end of the driving cylinder, and the other leads to the right end of the driving cylinder, the reversing valve is connected to the driving cylinder water return pipe (614), and the driving cylinder water return pipe is connected to the water pump drainage pipe (5). The reversing valve (615) is an electromagnetic reversing valve, an electro-hydraulic reversing valve or a stroke reversing valve.

[0044] The water pump cylinder (603) is provided with a water supply device that can supply water to the B1 chamber and the B2 chamber in turn and discharge water. The structure is as follows: the water pump cylinder water inlet pipe (607) is connected to the water pump water inlet pipe (7), the left end of the water pump cylinder (603) is provided with a left water pump cylinder water inlet, and the right end is provided with a right water pump cylinder water inlet. The water pump cylinder water inlet pipeline is a closed water pipeline connected end to end, and is respectively connected to the left water pump cylinder water inlet and the right water pump cylinder water inlet on the closed water pipeline. A water pump cylinder water inlet pipe is provided at the upper end of the connection between the closed water pipeline and the left water inlet. A left water inlet check valve (608) is provided for allowing water to enter only, and a left water outlet check valve (610) is provided at the lower end for allowing water to exit only. A right water inlet check valve (609) is provided for allowing water to enter only at the upper end of the connection between the closed water pipeline and the right inlet and outlet, and a right water outlet check valve (611) is provided at the lower end for allowing water to exit only. A water pump cylinder water outlet pipe (612) is provided on the water pipe between the left water outlet check valve (610) and the right water outlet check valve (611), and the water pump cylinder water outlet pipe is connected to the water pump water outlet pipe (8).

[0045] The automatic control device includes: a detection unit composed of a pressure sensor, a liquid level meter, and a flow meter; an execution unit composed of a hydraulic control valve, a gate valve, and a check valve; a signal and data exchange unit composed of a data acquisition component, a transmission network, and a display; a PLC programmable controller serves as a control unit, runs according to a customized program, and coordinates the automatic operation of each control unit; realizes the collection, transmission, display, and storage of basic parameters such as pressure, temperature, flow, and liquid level of the natural energy full hydraulic water lifting device based on pure water hydraulic transmission technology; automatically generates and stores an operation log, which includes multiple operating status parameters such as water lifting volume, power water flow, operating time, fault type and occurrence time, and time to resume operation; the control method has two modes: on-site manual control and remote automatic control.

[0046] The working principle of the utility model is: natural energy full hydraulic water pumping is divided into two major steps; the first step is to convert the potential energy of water into water pressure energy and store it in the form of high-pressure water; the second step is to use the high-pressure water as the power to drive the high-lift water pump to pressurize the low-level water to the high-level destination water storage tank.

[0047] The utility model builds a dam on a small river or stream to store water as power water, and guides the power water downstream through a pipeline into a high-pressure water tank. Due to the effect of gravity, the water in the water tank has pressure. According to the principle of fluid mechanics, its pressure value is proportional to the drainage drop of the power water: P = ρgH. Here, the combination of the drainage pipe and the high-pressure water tank converts the potential energy of the high-level water into the pressure energy of the high-pressure water. The water tank becomes a source of high-pressure water and can be used as a power source for pure water hydraulic transmission. At this point, the conversion of the potential energy of the power water to the pressure energy of the high-pressure water is realized, and the first step of the two major steps of natural energy water extraction is completed.

[0048] In order to ensure the cleanliness of the power water, the high-pressure water tank of the utility model is provided with an inlet filter for primary filtration on the power water inlet pipe, and an outlet filter at the end of the high-pressure water outlet pipe, so as to remove solid impurities in the water by precipitation. In order to ensure the safe operation of the high-pressure water tank and prevent the water tank from being over-pressurized, a safety valve is provided on the top of the water tank body. The utility model is provided with a manual cleaning device for the inner cavity of the tank body on the water tank body, in which a manhole and a detachably connected cover plate are provided on the water tank, and a sewage outlet and a sewage valve are provided at the bottom of the water tank body, so that workers can enter the water tank body for cleaning. The cross section of the water tank body can be designed to be circular or rectangular as required. In order to facilitate the automatic control of the water lifting device, the utility model is provided with a pressure sensor, a pressure gauge, a plurality of liquid level meters and a flow meter on the high-pressure water tank. While serving as a container, the high-pressure water tank also has multiple functions such as high-pressure water transfer, storage, voltage stabilization, coarse and fine filtration, sewage discharge, parameter detection and control.

[0049] The utility model adopts a pure water hydraulically driven high-lift water pump, uses high-pressure water as power, drives the pure water hydraulically driven high-lift water pump to pressurize low-level water to a high-level destination water storage tank.

[0050] The pure water hydraulically driven high-lift water pump is mainly composed of a drive cylinder and a water pump cylinder. The axes of the drive cylinder and the water pump cylinder are parallel to each other and fixed side by side on the base. The piston rods of the two cylinders are fixedly connected as a whole with bolts and connecting plates. When the piston of the drive cylinder reciprocates in the drive cylinder, it can drive the piston of the water pump cylinder to reciprocate in the water pump cylinder. The movement direction of the drive cylinder piston is controlled by the reversing valve. When the drive cylinder piston moves to the set positions at both ends, the reversing valve changes position, thereby changing the movement direction of the piston and the working state of the water pump.

[0051] When the reversing valve is in the left position, the water flow direction and the piston movement direction are as follows Figure 3 As shown. High-pressure water enters the A1 chamber at the left end of the drive cylinder from the drive cylinder water inlet pipe through the left position of the reversing valve, pushing the drive cylinder piston to move to the right, and the water in the A2 chamber at the right end is discharged through the right position of the reversing valve and the return pipe. The piston moves to the right set position, the reversing valve switches to the right position, and the water flow direction and the piston movement direction are as shown Figure 4 As shown. When the reversing valve is in the right position, high-pressure water enters the A2 chamber of the driving cylinder from the water inlet pipe of the driving cylinder through the right position of the reversing valve, pushing the piston of the driving cylinder to move to the left. The water in the A1 chamber is discharged through the right position of the reversing valve and the return pipe of the driving cylinder. The high-pressure water is controlled by the reversing valve to supply water and drain water to the left and right sides of the driving cylinder in turn, causing the piston of the driving cylinder to reciprocate.

[0052] Since the drive cylinder body is fixedly connected to the water pump cylinder body and the base, and the drive cylinder piston rod is fixedly connected to the water pump cylinder piston rod, the drive cylinder body and the water pump cylinder body are fixed during operation, and the drive cylinder piston reciprocates under the action of high-pressure water, driving the water pump cylinder piston to reciprocate at the same time. The water pump cylinder piston moves to the right, and the volume of the B1 chamber of the water pump cylinder increases, which is a water replenishment state. The water source water waiting to be pumped out enters the B1 chamber of the water pump cylinder through the water inlet pipe of the water pump cylinder through the left water inlet check valve that can only let in water to replenish the water pump cylinder. At the same time, the volume of the B2 chamber decreases, which is a water pumping state. The water in the B2 chamber is pumped out through the water outlet pipe of the water pump through the right water outlet check valve that can only let out water, and supplies water to the destination water tank. The water pump cylinder piston moves to the right end set position, and the drive cylinder piston changes direction, driving the water pump cylinder piston to change direction and move to the left. At this time, the volume of the B2 chamber of the water pump cylinder increases, and it is in the water replenishment state. The water source water waiting to be pumped out enters the B2 chamber of the water pump cylinder through the right water inlet check valve that can only let in water from the water pump cylinder inlet pipe to replenish the water pump cylinder. At the same time, the volume of the B1 chamber decreases, and it is in the water pumping state. The water in the B1 chamber is pumped out through the water pump outlet pipe through the left water outlet check valve that can only discharge water, and supplies water to the destination water reservoir. The piston of the water pump cylinder reciprocates, and the two chambers of the water pump cylinder body alternately pump and replenish water to achieve continuous water supply.

[0053] The control system of the utility model is composed of a pressure sensor, a liquid level meter, a flow meter and other components to form a detection unit; a reversing valve, a gate valve and other components to form an execution unit; a data acquisition component, a transmission network, and a display to form a signal and data exchange unit. The PLC programmable controller is used as a control unit, which runs according to a customized program and coordinates the automatic operation of each control unit. The structural block diagram is shown in the figure. Figure 5 shown.

Claims

1. A natural energy full hydraulic water pumping device based on pure water hydraulic transmission technology, characterized in that: A water retaining dam (1) is arranged at the power water source, and a power water reservoir is formed after water is stored. A high-pressure water tank (3) is arranged at a height lower than the water reservoir level H. A water intake is arranged on the water retaining dam and is lower than the water reservoir level. The water intake and the high-pressure water tank (3) are connected by a drainage water pipe (2). The water outlet of the high-pressure water tank is connected to a high-lift water pump (6) driven by pure water hydraulic pressure by a high-pressure water tank outlet pipe (4). The high-lift water pump driven by pure water hydraulic pressure is provided with a water pump discharge pipe (5) and a water pump inlet pipe (7). One end of the water pump outlet pipe (8) is connected to the high-lift water pump, and the other end is connected to the destination water reservoir (9). The water pump inlet pipe (7) is connected to the water source to be lifted. The device is provided with an automatic control device, and the automatic control device comprises: a pressure sensor The detection unit is composed of sensors, liquid level meters, and flow meters; the execution unit is composed of pneumatic control valves, hydraulic control valves, gate valves, and check valves; the data acquisition components, transmission networks, and displays constitute the signal and data exchange unit. The PLC programmable controller serves as the control unit, runs according to the customized program, and coordinates the automatic operation of each control unit; it realizes the collection, transmission, display, and storage of the basic parameters of pressure, flow, and liquid level of the natural energy full hydraulic water lifting device based on pure water hydraulic transmission technology; it automatically generates and stores an operation log, which includes the operating status parameters describing the water lifting volume, power water flow, operating time, fault type and occurrence time, and recovery time; the control method has two modes: on-site manual control and remote automatic control.

2. A natural energy full hydraulic water extraction device based on pure water hydraulic transmission technology as claimed in claim 1, characterized in that: The structure of the high-pressure water tank (3) is as follows: a high-pressure water outlet pipe (305) communicating with the inner cavity of the tank body is provided at the upper part of the hollow and closed water tank body (301); the other end of the high-pressure water outlet pipe is connected to the high-pressure water tank outlet pipe (4); a water outlet valve (302), a water outlet filter (303), and a flow meter (304) are provided in sequence at the part of the high-pressure water outlet pipe close to the tank body; a power water inlet pipe (310) leading to the inner cavity of the tank body is provided at the lower part of the tank body; the other end of the power water inlet pipe is connected to the drainage pipe (2); an inlet valve (309) and a water inlet filter (308) are provided in sequence at one end of the power water inlet pipe close to the water tank body; a pressure sensor (311), a pressure gauge (312), and a liquid level gauge (313) are provided at the upper part of the tank body; a safety valve (314) is provided at the top of the tank body; and a tank inner cavity cleaning device is provided on the tank body.

3. A natural energy full hydraulic water extraction device based on pure water hydraulic transmission technology as claimed in claim 2, characterized in that: The structure of the tank inner cavity cleaning device is as follows: a manhole communicating with the inner cavity of the water tank and a detachably connected cover plate (306) are provided on one side of the tank body, and a sewage outlet and a sewage valve (307) are provided at the bottom of the tank body; the cross section of the water tank body (301) is circular or rectangular.

4. A natural energy full hydraulic water extraction device based on pure water hydraulic transmission technology as claimed in claim 2, characterized in that: The flow meter (304) and pressure sensor (311) are connected to an automatic control device.

5. A natural energy full hydraulic water extraction device based on pure water hydraulic transmission technology as claimed in claim 1, characterized in that: Said H>1 meter.

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