WO2022095901A1 - 一种汲水系统 - Google Patents

一种汲水系统 Download PDF

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Publication number
WO2022095901A1
WO2022095901A1 PCT/CN2021/128445 CN2021128445W WO2022095901A1 WO 2022095901 A1 WO2022095901 A1 WO 2022095901A1 CN 2021128445 W CN2021128445 W CN 2021128445W WO 2022095901 A1 WO2022095901 A1 WO 2022095901A1
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WO
WIPO (PCT)
Prior art keywords
water
valve
positive
negative pressure
valve body
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PCT/CN2021/128445
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English (en)
French (fr)
Inventor
郭晓东
Original Assignee
郭晓东
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Filing date
Publication date
Application filed by 郭晓东 filed Critical 郭晓东
Publication of WO2022095901A1 publication Critical patent/WO2022095901A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
    • E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
    • E03B7/075—Arrangement of devices for control of pressure or flow rate
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
    • E03B7/077—Arrangement of backflow preventing devices

Definitions

  • the invention relates to the technical field of water supply, in particular to a water drawing system.
  • the purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art, and to provide a water drawing system.
  • a water drawing system comprising a water pump, a circulating water pipe, a positive and negative pressure connection tank and at least one valve port;
  • the input end of the water pump is connected with the water source through a pipeline;
  • the output end of the water pump is connected with the input end of the circulating water pipe;
  • the positive and negative pressure connection tank is provided with a floating one-way valve, and the output end of the circulating water pipe is connected to the inlet of the floating one-way valve through the positive and negative pressure connection tank; the input end of the water pump is also connected to the inlet through the pipeline.
  • the positive and negative pressure connection tanks are connected;
  • the valve port is arranged on the circulating water pipe.
  • the distance reached by the path of the circulating water pipe and the drop of different valve ports are proportional to the pressure value set by the floating one-way valve;
  • the operating conditions of each valve port of the water pipe are matched and coordinated, so as to realize the pressure protection in the circulating water pipe and each valve port, and after the pressure in the circulating water pipe meets the requirements of each valve port, the water can enter the positive and negative pressure through the floating check valve.
  • the connection tank ensures that the system pressure and water supply are just right, and greatly improves the working efficiency of the water drawing system; at the same time, the invention realizes the circulation of water back to the water pump, reduces the supply of water source, and can achieve the purpose of saving energy;
  • the pressure and flow of the valve port are guaranteed to be coordinated with each other, so as to avoid the phenomenon of water column at the valve port, thereby realizing the purpose of energy saving.
  • the floating one-way valve includes a cylinder, a parallel column, a hydraulic passive disc and a pressure spring; the cylinder is vertically arranged in the positive and negative pressure connection tank; the parallel column is slidably arranged in the cylinder. the center position; the hydraulic passive plate is arranged at the bottom of the parallel column, and the peripheral contour of the hydraulic passive plate is sealed corresponding to the contour of the inner wall of the cylinder; the pressure spring is sleeved on the parallel column, and the upper and lower sides of the pressure spring The two ends are respectively in contact with the inner top surface of the cylinder body and the top surface of the hydraulic passive plate; the side wall of the cylinder body is provided with a number of water outlets; the output end of the circulating water pipe passes through the positive and negative pressure connection tank and the cylinder The bottom of the body is connected, and the water can lift the hydraulic passive plate and be discharged into the positive and negative pressure connection tank from the water outlet.
  • the beneficial effect of adopting the above-mentioned further scheme is that, by selecting a suitable cylinder and pressure spring, matching and coordination with the overall pressure of the water drawing system can be achieved; when the water pressure in the circulating water pipe is too large, the water can overcome the elastic force of the pressure spring to push up the water. Press the passive plate, then enter the cylinder and discharge into the positive and negative pressure connection tank, and return to the water pump from the positive and negative pressure connection tank to realize the circulation.
  • the bottom of the positive and negative pressure connection tank is also provided with a float switch; the positive and negative pressure connection tank is communicated with the input end of the water pump through the output port of the float switch.
  • the float switch includes a communication tube, a valve piece, a lever, a float piece, and a limit card;
  • the communication tube is vertically arranged at the bottom of the positive and negative pressure connection tank, and the input end of the water pump is connected to the output of the communication tube.
  • the valve sheet is rotated and arranged in the communication pipe through the rotating shaft, and the side profile of the valve sheet is sealed corresponding to the inner wall contour of the communication pipe; one end of the lever is connected with the rotating shaft of the valve sheet, and the lever rotates synchronously with the valve sheet;
  • the float piece is arranged on the other end of the lever, and the inside of the float piece is hollow;
  • the limit clip is arranged on the outer side surface of the communication pipe to limit the swing angle of the lever.
  • the beneficial effect of adopting the above-mentioned further scheme is that by setting the float switch, the floating one-way valve can be better matched and coordinated with the water drawing system, and part of the water can be temporarily stored in the positive and negative pressure connection tank, and the cavity provided by the float piece can be used to set the floating one-way valve.
  • the lever principle is used to make the float piece and the valve piece linked.
  • it will greatly reduce the certain matching standard of the floating check valve under different conditions. In the manufacturing process, it can also reduce costs, facilitate the application of popularization prospects, and enhance the potential effect.
  • the float switch further includes a tension spring; two ends of the tension spring are respectively connected with the outer side of the communication pipe and the rod body of the lever, so as to limit the float member from floating.
  • the beneficial effect of adopting the above-mentioned further scheme is that, since the amount of AC water circulating through the floating check valve is relatively limited, a force matching it is required to limit it, because without limitation, once the float switch is activated, it will completely turn the positive and negative The flow in the pressure connection tank is maximized, so that the positive and negative pressure connection tank will generate a large negative pressure, which is inconsistent with the floating check valve and affects the relative stability of the system. Contrast is formed to achieve the effect of limiting force.
  • a fixed one-way valve is also arranged in the positive and negative pressure connection tank; the output end of the circulating water pipe is connected with the bottom of the cylinder through the fixed one-way valve.
  • the beneficial effect of adopting the above-mentioned further scheme is that, by setting the fixed one-way valve, it can be avoided that when the water supply is stopped or the water pressure is unstable, the water flows back from the cylinder of the floating one-way valve into the circulating water pipe, preventing the positive and negative pressure connection tanks from flowing back.
  • the water pressure reversely affects the water pressure in the circulation pipeline, which ensures the stable pressure of the water pumping system, and at the same time, it is also convenient for the transition and re-operation after the operation, and shortens the time required for the system state to stabilize.
  • the water-drawing tank is provided with a fixed one-way valve; the water source is communicated with the inlet of the fixed one-way valve of the water-drawing tank through a pipeline; the input end of the water pump is connected to the pump through a pipeline. The bottom of the water tank is connected.
  • the beneficial effect of adopting the above-mentioned further scheme is that the water source can be temporarily stored in the water suction tank by arranging the water suction tank and the fixed one-way valve, so as to avoid the backflow of water to the water source, reduce the load of the water pump, and at the same time ensure the continuous water supply of the system and stabilize the water pressure of the system .
  • the output end of the water pump is connected with the input end of the circulating water pipe through the water storage tank;
  • the water storage tank is provided with a fixed one-way valve;
  • the output end of the water pump It is communicated with the inlet of the fixed one-way valve of the water storage tank through a pipeline;
  • the bottom of at least one water storage tank is connected with a spare water outlet pipe.
  • the beneficial effect of adopting the above-mentioned further scheme is that, by setting up a water storage tank, a fixed one-way valve and a spare water outlet pipe, the water source can be stored and water backflow can be avoided, so that it can be directly used by the circulating water pipe or other expansion and standby pipes, and the water pressure of the system can be stabilized. Make the system work smoothly.
  • the fixed one-way valve includes a fixed valve body, a flange and an elastic sheet; the flange is fixedly arranged in the valve body, the peripheral contour of the flange corresponds to the inner wall of the fixed valve body, and the end surface of the flange corresponds to the inner wall of the fixed valve body.
  • a flange hole is arranged along its circumference, and the elastic sheet is arranged at one end of the flange and covers each flange hole; water enters the flange hole from the inlet of the fixed valve body, pushes up the elastic sheet, and then flows from the outlet of the fixed valve body discharge.
  • the beneficial effect of adopting the above-mentioned further scheme is that, by arranging the flange holes, the water in the circulation pipeline can evenly push up the elastic sheet, so that the water pressure changes uniformly.
  • it also includes two decompression pipes; one end of the decompression pipe is communicated with the top of the positive and negative pressure connection tank, and one end of the other decompression pipe is communicated with the top of the water-drawing tank; the other end of the decompression pipe is Equipped with an intake valve.
  • the beneficial effect of adopting the above-mentioned further scheme is that, by setting the decompression pipe, the water in the positive and negative pressure connecting tank and the water drawing tank can be drained by the water pump by opening the air inlet valve after the operation of the water drawing system is completed.
  • a mobile platform is also included; the water pump, the positive and negative pressure connection tank, the water drawing tank and the water storage tank are all arranged on the mobile platform.
  • the beneficial effect of adopting the above-mentioned further scheme is that, by setting the mobile platform, the whole water drawing system can be easily transported and applied to different scenarios.
  • valve port includes a valve port valve body, a column and a floating pin; the bottom of the side surface of the valve port valve body is provided with a liquid inlet port, and the top of the valve port valve body is provided with a liquid outlet port; the The column is fixed in the valve body, and the side of the column and the inner wall of the valve body leave a gap; the floating pin is slidably arranged at the center of the column, and the outer side of the floating pin is in contact with the inner wall of the valve body.
  • the upper and lower ends of the column extend beyond the upper and lower ends of the floating pin respectively, the top of the column is provided with a blocking disk, the area of the blocking disk is larger than the area of the liquid outlet, and there is a gap between the blocking disk and the liquid outlet.
  • the top surface of the floating pin is provided with a number of through holes evenly distributed around its circumference, and the through holes communicate with the liquid inlet and the liquid outlet;
  • the bottom of the column is provided with a cone, and the bottom surface of the floating pin is shaped It is concave inward and corresponds to the top surface of the frustum; the position of the top surface of the frustum corresponds to the position of the liquid inlet; the water enters the valve body from the liquid inlet, and passes through the top surface of the frustum and the through hole in turn. discharged from the liquid outlet.
  • the beneficial effect of adopting the above-mentioned further scheme is that the basic feature of the valve port is that the output of the valve port will not be changed regardless of the time load of the pressure in a certain interval on the path, and the realization of its structure has many forms;
  • the port structure when the water pressure is relatively low, since the bottom of the floating pin is concave and the bottom of the column is in the shape of a truncated cone, the flow space at the position of the truncated cone is not large, but the flow output space of the upper baffle plate is large, and the water pressure When it is large, the structure of this situation will be reversed and exchanged, so that the output of the valve port is basically unchanged.
  • the structure of the valve port can also use the following structure: the valve port includes a valve port valve body, a fixed plate, two connecting plates, two torsion springs, a first folding pin and a second folding pin; the valve port The bottom and the top of the valve body are respectively provided with a liquid inlet and a liquid outlet, and the liquid inlet is communicated with the circulation pipeline; the fixed plate is fixedly arranged in the valve body, and the fixed plate corresponds to the liquid outlet There is a water hole at the position of the two connecting plates; the upper ends of the two connecting plates are respectively connected with the two sides of the fixed plate through a torsion spring; one end of the first folding pin and the second folding pin are respectively connected with the two connecting plates The lower ends are connected in rotation; the other ends of the first folding pin and the second folding pin are slidingly connected to each other to form an adjustable water inlet, and the adjustable water inlet shrinks when the first folding pin and the second folding pin are close to sliding; The port enters the valve body after passing through the adjustable water inlet, and
  • the beneficial effect of adopting the above-mentioned further solution is that when the water pressure is too high, the water pushes up the first folding pin and the second folding pin, so that the two connecting plates and the fixing plate compress the torsion spring, and then the first folding pin and the second folding pin are pushed up.
  • the folding pins slide close to each other, so that the adjustable water inlet can be reduced, so that the flow rate of the valve port is basically unchanged.
  • Fig. 1 is the first structural representation of the water drawing system of the present invention
  • Fig. 2 is the second structural representation of the water drawing system of the present invention.
  • Fig. 3 is the internal structure schematic diagram of the water drawing system of the present invention.
  • Fig. 4 is the partial enlarged view of A place in Fig. 3;
  • Fig. 5 is the sectional structure schematic diagram of the fixed one-way valve in the water drawing tank and the water storage tank of the present invention
  • FIG. 6 is a schematic cross-sectional view of the structure of the floating check valve and the float switch of the present invention.
  • Fig. 7 is a partial enlarged view at B in Fig. 6;
  • FIG. 8 is a schematic structural diagram of a first valve port of the present invention.
  • FIG. 9 is a schematic cross-sectional view of the structure of the first valve port of the present invention.
  • FIG. 10 is a schematic structural diagram of the second valve port of the present invention.
  • FIG. 11 is a schematic diagram of the first internal structure of the second valve port of the present invention.
  • FIG. 12 is a schematic diagram of the second internal structure of the second valve port of the present invention.
  • a water drawing system in this embodiment includes a water pump 11 , a circulating water pipe 2 , a water drawing tank 3 , two water storage tanks 4 , a positive and negative pressure connection tank 5 , and at least one valve port 6 ;
  • the input end of the water pump 11 is connected to the water source 12 through the pipeline and the water drawing tank 3;
  • a fixed one-way valve 7 is provided in the water drawing tank 3; the water source 12 is communicated with the inlet of the fixed one-way valve 7 of the water drawing tank 3 through a pipeline; the input end of the water pump 11 is connected with the pipeline through a pipeline. The bottom of the draw water tank 3 is communicated;
  • the fixed one-way valve 7 includes a fixed valve body 71, a flange 72 and an elastic sheet 73; the fixed valve body 71 is arranged at the bottom of the water tank 3, and the inlet of the fixed valve body 71 is arranged at the bottom of the fixed valve body 71 , the water source 12 is connected to the inlet of the bottom of the fixed valve body 71 through the tank body of the water-drawing tank 3 through the pipeline; Corresponding to the inner wall seal, the end face of the flange 72 is provided with a flange 72 hole along its circumferential direction, and the elastic sheet 73 is arranged at one end of the flange 72 and covers each flange 72 hole; under the action of the water pump 11, the water flows from the water source 12 is extracted, and enters the hole of flange 72 through the inlet of the fixed valve body 71.
  • the water evenly pushes up the elastic sheet 73 and pushes up the elastic sheet 73, and then is discharged from the outlet of the fixed valve body 71 into the water tank 3, and then enters through the pipeline.
  • the water pump 11; the elastic sheet 73 can be made of plastic material or metal material.
  • the elastic sheet 73 is preferably a film.
  • the output end of the water pump 11 is connected to the input end of the circulating water pipe 2 through the pipeline and the water storage tank 4;
  • the water storage tanks 4 there are two water storage tanks 4, and fixed check valves 7 are provided in the water storage tanks 4; the output ends of the water pumps 11 are respectively fixed to the two water storage tanks 4 through pipes.
  • the inlet of the one-way valve 7 is communicated; the input end of the circulating water pipe 2 is communicated with the bottom of one of the water storage tanks 4 through pipes; the bottom of the other water storage tank 4 is connected with a spare water outlet pipe 41, which is in It is closed when not in use.
  • the water drawing system needs to be expanded, it can be connected to other external pipes to achieve expanded water supply;
  • the fixed one-way valve 7 includes a fixed valve body 71, a flange 72 and an elastic sheet 73; the fixed valve body 71 is arranged at the bottom of the water storage tank 4, and the inlet of the fixed valve body 71 is arranged at the top thereof , the output end of the water pump 11 is connected to the inlet of the top of the fixed valve body 71 through the tank body of the water storage tank 4 through the pipeline; the flange 72 is fixedly arranged on the top of the valve body, and the peripheral contour of the flange 72 is fixed to the top of the valve body 71.
  • valve body 71 The inner wall of the valve body 71 is sealed correspondingly, the end face of the flange 72 is provided with a flange 72 hole along its circumferential direction, and the elastic sheet 73 is arranged above the flange 72 and covers each flange 72 hole; water enters the fixed valve body 71 Afterwards, when the fixed valve body 71 is full of water, the water pours into the hole of the flange 72 and pushes up the elastic sheet 73 to be discharged into the water storage tank 4 .
  • the positive and negative pressure connection tank 5 is provided with a floating check valve 51 , a fixed check valve 7 and a float switch 52 ; the output end of the circulating water pipe 2 is connected to the The input port of the fixed check valve 7 is connected, the output port of the fixed check valve 7 is connected to the input port of the floating check valve 51, the output port of the floating check valve 51 and the input port of the float switch 52 are connected.
  • the port is communicated with the interior of the positive and negative pressure connection tank 5; the input end of the water pump 11 is communicated and connected with the output port of the float switch 52 through a pipeline;
  • the fixed one-way valve 7 includes a fixed valve body 71 , a flange 72 and an elastic sheet 73 ;
  • the fixed valve body 71 is arranged at the bottom of the positive and negative pressure connection tank 5 ;
  • the output end of the circulating water pipe 2 Passing through the bottom of the positive and negative pressure connection tank 5 is connected to the input port of the bottom of the fixed valve body 71;
  • the flange 72 is fixedly arranged in the valve body, and the peripheral contour of the flange 72 corresponds to the inner wall of the fixed valve body 71.
  • the end face of the flange 72 is provided with a flange 72 hole along its circumferential direction
  • the elastic sheet 73 is arranged at one end of the flange 72 and covers each flange 72 hole;
  • the floating check valve 51 includes a cylinder body 511 , a parallel column 512 , a hydraulic passive disc 513 and a pressure spring 514 ;
  • the cylinder body 511 is vertically arranged above the fixed valve body 71 in the positive and negative pressure connection tank 5
  • the cylindrical body 511 is integrally connected with the fixed valve body 71 in the positive and negative pressure connection tank 5, so there is no need to connect the cylindrical body 511 and the fixed valve body 71 through a pipeline, so as to achieve the effect of saving space and reducing parts;
  • the parallel column 512 is slidably arranged at the center position in the cylinder 511;
  • the hydraulic driven disk 513 is arranged at the bottom of the parallel column 512, and the peripheral contour of the hydraulic driven disk 513 is sealed corresponding to the inner wall contour of the cylinder 511;
  • the The pressure spring 514 is sleeved on the parallel column 512, and the upper and lower ends of the pressure spring 514 are respectively in contact with the inner top surface of the cylinder 5
  • the float switch 52 includes a communication pipe 521, a valve plate 522, a lever 523, a float piece 524, a limit card 525 and a tension spring 526; the communication pipe 521 is vertically arranged in the positive and negative pressure connection tank 5.
  • the input end of the water pump 11 is communicated with the output end of the communication pipe 521;
  • the valve sheet 522 is arranged in the communication pipe 521 through the rotation of the rotating shaft, and the side profile of the valve sheet 522 is sealed corresponding to the inner wall contour of the communication pipe 521;
  • One end of the lever 523 is connected with the shaft of the valve plate 522, and the lever 523 rotates synchronously with the valve plate 522;
  • the float piece 524 is arranged on the other end of the lever 523, and the interior of the float piece 524 is hollow;
  • the limit card 525 The two ends of the tension spring 526 are respectively connected to the outer side of the communication pipe 521 and the rod body of the lever 523 to limit the float member 524 float.
  • the water drawing system of the present invention further includes two decompression pipes 81; one end of one decompression pipe 81 is connected to the top of the positive and negative pressure connection tank 5, and one end of the other decompression pipe 81 is connected to the The top of the water-drawing tank 3 is communicated; the other end of the decompression pipe 81 is provided with an air inlet valve 82 alone.
  • the water drawing system of the present invention further includes a mobile platform 9 ;
  • valve ports 6 are arranged on the circulating water pipe 2, and the number and distribution of the valve ports 6 are correspondingly set according to the working area and conditions; The time load of each interval pressure will not change the output of the valve port 6, and the realization of its structure has many forms. Only two specific valve port 6 structures are provided below for reference;
  • the first valve port 6 includes a valve port valve body 61, a column 62 and a floating pin 63; the bottom of the side surface of the valve port valve body 61 is provided with an inlet valve.
  • the liquid port 611, the top of the valve body 61 is provided with a liquid outlet 612;
  • the column 62 is fixedly arranged in the valve body 61, and there is a gap between the side of the column 62 and the inner wall of the valve body 61;
  • the floating pin 63 is slidably arranged at the center of the column 62 , and the outer side of the floating pin 63 is in contact with the inner wall of the valve body 61 ;
  • the upper and lower ends of the column 62 respectively extend beyond the upper and lower ends of the floating pin 63 ,
  • the top of the column 62 is provided with a blocking disk 64, the area of the blocking disk 64 is larger than the area of the liquid outlet 612, and there is a gap between the blocking disk 64 and the liquid outlet 612;
  • the second valve port 6 includes a valve port valve body 61, a fixing plate 651, two connecting plates 652, two torsion springs 653, and a first folding pin 654 and the second folding pin 655; the bottom and top of the valve body 61 are respectively provided with a liquid inlet 611 and a liquid outlet 612, the liquid inlet 611 communicates with the circulation pipeline; the fixing plate 651 is fixed Disposed in the valve body 61, the fixed plate 651 is provided with a water hole 6511 at the position corresponding to the liquid outlet 612; Side rotation connection; one end of the first folding pin 654 and the second folding pin 655 are respectively connected with the lower ends of the two connecting plates 652 in rotation; the other ends of the first folding pin 654 and the second folding pin 655 are slidably connected to each other And an adjustable water inlet 656 is formed.
  • the adjustable water inlet 656 shrinks; the water from the liquid inlet 611 passes through the adjustable water inlet 656 and enters the valve body 61, and The liquid outlet 612 is discharged through the water passage hole 6511;
  • the water pushes up the first folding pin 654 and the second folding pin 655, so that the two connecting plates 652 and the fixing plate 651 compress the torsion spring 653, and then the first folding pin 654 and the second folding pin 655 are pushed up.
  • the folding pin 654 and the second folding pin 655 slide close to each other, thereby reducing the adjustable water inlet 656, so that the flow rate of the valve port 6 is basically unchanged.
  • the water pump 11 When the water-drawing system is working, the water pump 11 provides power to make the water from the water source 12 enter the water-drawing tank 3 through the pipeline; since the water-drawing tank 3 is provided with a fixed one-way valve 7, the backflow of the water after entering the water-drawing tank 3 can be avoided.
  • the water is pumped into the water pump 11 from the water-drawing tank 3, and the water pump 11 outputs the water to the two water storage tanks 4; similarly, the water storage tanks 4 are provided with a fixed one-way valve 7, so The water after entering the water storage tank 4 can be prevented from flowing back into the water pump 11; one of the water storage tanks 4 is used as a backup, and the other water storage tank 4 discharges the water into the circulation pipeline under the pressure of the water pump 11, and is discharged from each valve.
  • the outlet 6 is discharged, and is used in agriculture and forestry irrigation, urban greening and different industries that are more dependent on the support of the water source 12;
  • the water enters the positive and negative pressure connection tank 5 from the output end of the circulating pipeline, and thus passes through the fixed check valve 7 and the floating check valve inside. 51, and then discharged into the positive and negative pressure connection tank 5, specifically, the water enters the hole of the flange 72 from the inlet of the fixed valve body 71, and lifts the elastic sheet 73 into the internal space shared by the fixed valve body 71 and the cylinder body 511, After the water reaches a certain amount, the hydraulic passive plate 513 can be lifted up and discharged into the positive and negative pressure connection tank 5 from the water outlet 5111 of the cylinder 511;
  • the user can limit the maximum rotation angle of the valve plate by adjusting the position of the limit card 525 to adjust the maximum drainage volume of the communication pipe 521;
  • the distance reached by the path of the circulating water pipe of the present invention and the drop of different sizes of the valve ports are proportional to the pressure value set by the floating one-way valve;
  • the operating conditions of each valve port of the water pipe are matched and coordinated, so as to realize the pressure protection in the circulating water pipe and each valve port, and after the pressure in the circulating water pipe meets the requirements of each valve port, the water can enter the positive and negative pressure through the floating check valve.
  • the connection tank ensures that the system pressure and water supply are just right, and greatly improves the working efficiency of the water drawing system; at the same time, the invention realizes the circulation of water back to the water pump, reduces the supply of water source, and can achieve the purpose of saving energy;
  • the pressure and flow of the valve port are guaranteed to be coordinated with each other, so as to avoid the phenomenon of water column at the valve port, thereby realizing the purpose of energy saving.
  • the floating one-way valve can be better matched and coordinated with the water pumping system, and part of the water can be temporarily stored in the positive and negative pressure connection tank.
  • the buoyancy of the valve using the lever principle, makes the float piece and the valve piece linked.
  • it will greatly reduce the certain matching standard of the floating check valve under different conditions.
  • it is also It can reduce the cost, facilitate the application of the popular prospect, and enhance the potential effect;

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
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  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Float Valves (AREA)

Abstract

本发明涉及一种汲水系统，包括水泵、循环水管、正负压衔接罐和至少一个阀口；水泵的输入端通过管道与水源连接；水泵的输出端与循环水管的输入端连接；正负压衔接罐内设有浮动单向阀，循环水管的输出端穿过正负压衔接罐与浮动单向阀的入口连通；水泵的输入端还通过管道与正负压衔接罐连通；阀口设置在循环水管上。本发明通过设置合适的浮动单向阀充当介子，与循环水管的各阀口的作业条件相匹配相协调，实现循环水管内以及各阀口的压力保障，且在循环水管内的压力满足各阀口需求后，水可通过浮动单向阀进入正负压衔接罐，保证系统压力以及水量供给的恰到好处，大大提高汲水系统的工作效率，进而实现节能的目的。

Description

一种汲水系统 技术领域
本发明涉及水资源供给技术领域，特别是涉及一种汲水系统。
背景技术
世界范围内及我国，淡水资源相对匮乏区域的农林灌溉、城市绿化、及比较依赖于水源支撑的不同产业中，需要汲水系统进行灌溉，且灌溉过程中要求有效利用水资源，需要水资源的供给要求恰到好处，即系统的供水情况满足需求，并实现节能的目的。
在水资源调配上来说，通过泵体从水源汲取并供给的水量，它的消耗都是发生在沿线的管路上，所特定距离下设置的阀口上。系统的压力是否恰到好处决定水资源供给是否恰到好处，决定水资源是否有效利用。现有的汲水系统供水过程无法把握其系统压力，容易出现压力过大或压力过小的情况，使系统出现负荷过大或水压不足的矛盾，因此需要提供一种汲水系统，以解决以上矛盾。
发明内容
基于此，本发明的目的在于克服现有技术中的缺点和不足，提供一种汲水系统。
一种汲水系统，包括水泵、循环水管、正负压衔接罐和至少一个阀口；
所述水泵的输入端通过管道与水源连接；
所述水泵的输出端与循环水管的输入端连接；
所述正负压衔接罐内设有浮动单向阀，所述循环水管的输出端穿过正负压衔接罐与所述浮动单向阀的入口连通；所述水泵的输入端还通过管道与所述正负压衔接罐连通；
所述阀口设置在所述循环水管上。
本发明所述的汲水系统，循环水管的路径达至的距离、阀口不同大小的落差，与浮动单向阀设置的压力值成正比；通过设置合适的浮动单向阀充当介子，与循环水管的各阀口的作业条件相匹配相协调，实现循环水管内以及各阀口的压力保障，且在循环水管内的压力满足各阀口需求后，水可通过浮动单向阀进入正负压衔接罐，保证系统压力以及水量供给的恰到好处，大大提高汲水系统的工作效率；同时本发明实现水的循环回流到水泵，降低水源的供给量，可达到节约能源的目的；
另外，通过将循环水管的压力与系统整体匹配协调，保证阀口的压力与流量相互协调，避免阀口出现水柱等现象，进而实现节能的目的。
进一步地，所述浮动单向阀包括筒体、平行柱、水压被动盘和压力弹簧；所述筒体垂直 设置在所述正负压衔接罐内；所述平行柱滑动设置在筒体内的中心位置；所述水压被动盘设置在所述平行柱的底部，且水压被动盘的周侧轮廓与筒体内壁轮廓密封对应；所述压力弹簧套设在平行柱上，压力弹簧的上下两端分别与筒体的内顶面以及水压被动盘的顶面接触；所述筒体的侧壁上设有若干出水口；所述循环水管的输出端穿过正负压衔接罐与筒体的底部连通，水可顶起水压被动盘并从出水口排出到正负压衔接罐内。
采用上述进一步方案的有益效果是，通过选择合适的筒体、压力弹簧，与汲水系统的整体压力实现匹配协调；当循环水管内水压过大时，水可克服压力弹簧的弹力顶起水压被动盘，进而进入筒体并排进正负压衔接罐内，并从正负压衔接罐内回流到水泵，实现循环。
进一步地，所述正负压衔接罐内的底部还设有浮子开关；所述正负压衔接罐通过所述浮子开关的输出口与水泵的输入端连通。
进一步地，所述浮子开关包括连通管、阀门片、杠杆、浮子件、限位卡；所述连通管垂直设置在正负压衔接罐内的底部，所述水泵的输入端与连通管的输出端连通；所述阀门片通过转轴转动设置在连通管内，阀门片的侧面轮廓与连通管的内壁轮廓密封对应；所述杠杆的一端与阀门片的转轴连接，杠杆与阀门片同步转动；所述浮子件设置在杠杆的另一端上，所述浮子件内部中空；所述限位卡设置在连通管的外侧面，用于限定杠杆的摆角。
采用上述进一步方案的有益效果是，通过设置浮子开关，使浮动单向阀更好地与汲水系统匹配协调，正负压衔接罐内可暂存部分水，利用浮子件设置具备的空腔，相对于水密度能够构成的浮力，利用杠杆原理，使浮子件与阀门片联动，在汲水系统运行过程中，就会大大降低浮动单向阀在不同条件下，应需的一定匹配标准，同时在制造环节上，也能起到降低成本，便于应用的普及前景，增强潜力的效果。
进一步地，所述浮子开关还包括拉力弹簧；所述拉力弹簧的两端分别与所述连通管的外侧以及所述杠杆的杆体连接，用于限制浮子件浮起。
采用上述进一步方案的有益效果是，由于通过浮动单向阀循环的交流水量相对有限，就需要一个与之相匹配的力来限制，因为不加以限制，浮子开关一旦启动，就会完全把正负压衔接罐内的流量最大化，这样正负压衔接罐会产生较大的负压，与浮动单向阀匹配不协调，影响系统的相对稳定性，通过设置一个拉力弹簧，与浮子的杠杆走向形成反差，实现限制力的效果。
进一步地，所述正负压衔接罐内还设有固定单向阀；所述循环水管的输出端与筒体的底部通过所述固定单向阀导通连接。
采用上述进一步方案的有益效果是，通过设置固定单向阀，可避免由于停止供水或水压不稳定时，水从浮动单向阀的筒体倒流到循环水管内，阻止正负压衔接罐的水压反向影响循 环管道内的水压，保证汲水系统压力稳定，同时也便于作业后转场再作业时，缩短系统状态稳定所需的时间。
进一步地，还包括汲水罐；所述汲水罐内设有固定单向阀；所述水源通过管道与汲水罐的固定单向阀的入口连通；所述水泵的输入端通过管道与汲水罐的底部连通。
采用上述进一步方案的有益效果是，通过设置汲水罐和固定单向阀，可在吸水罐内暂存水源，避免水回流到水源，减轻水泵的负荷，同时保证系统连续供水，稳定系统水压。
进一步地，还包括至少一个储水罐；所述水泵的输出端与循环水管的输入端通过所述储水罐连接；所述储水罐内设有固定单向阀；所述水泵的输出端通过管道与储水罐的固定单向阀的入口连通；至少一个储水罐的底部连接有备用出水管。
采用上述进一步方案的有益效果是，通过设置储水罐、固定单向阀以及备用出水管，可储存水源，避免水回流，以便直接供循环水管或其他拓展备用管直接使用，稳定系统水压，使系统平稳工作。
进一步地，所述固定单向阀包括固定阀体、法兰和弹性片；所述法兰固定设置在阀体内，法兰的周侧轮廓与固定阀体的内壁密封对应，法兰的端面上沿其周向设有法兰孔，所述弹性片设置在法兰的一端，并覆盖各法兰孔；水从固定阀体的入口进入法兰孔，并顶起弹性片再从固定阀体的出口排出。
采用上述进一步方案的有益效果是，通过设置法兰孔，可使循环管道内的水均匀地顶起弹性片，使水压均匀过渡变化。
进一步地，还包括两条解压管；其中一条解压管的一端与所述正负压衔接罐的顶部连通，另一条解压管的一端与所述汲水罐的顶部连通；解压管的另一端均设有进气阀。
采用上述进一步方案的有益效果是，通过设置解压管，可在汲水系统作业完成后，通过打开进气阀，使水泵把正负压衔接罐以及汲水罐内的水排干净。
进一步地，还包括移动平台；所述水泵、正负压衔接罐、汲水罐和储水罐均设置在移动平台上。
采用上述进一步方案的有益效果是，通过设置移动平台，可方便运输汲水系统的整体，方便应用到不同的场景。
进一步地，所述阀口包括阀口阀体、立柱和浮动销；所述阀口阀体的侧面的底部设有进液口，所述阀口阀体的顶部设有出液口；所述立柱固定设置在阀口阀体内，立柱的侧面与阀口阀体的内壁留有间隙；所述浮动销滑动设置在立柱的中心位置上，浮动销的外侧面与阀口阀体的内壁贴合；立柱的上下两端分别延伸至浮动销的上下两端之外，所述立柱的顶部设有阻挡盘，阻挡盘的面积大于所述出液口的面积，阻挡盘与出液口之间留有间隙；所述浮动销 的顶面绕其周向均布地设有若干通孔，所述通孔连通进液口和出液口；所述立柱的底部设有锥台，所述浮动销的底面形状向内凹并与锥台的顶面对应；所述锥台的顶面位置与进液口的位置对应；水从进液口进入阀口阀体，并依次经过锥台顶面、通孔从出液口排出。
采用上述进一步方案的有益效果是，阀口的基本特点是无论路径上的某个区间压力的时荷大小，都不会改变阀口的输出量，其结构的实现具有很多形式；如上述的阀口结构，在水压力相对较低时，由于浮动销底部凹型，而立柱底端呈锥台形，此时锥台位置的流量空间不大，但上部的阻挡盘的流量输出空间大，而水压力大时，此形势的结构将逆转互换，实现阀口输出量基本不变的目的。
进一步地，阀口的结构还可以用以下结构：所述阀口包括阀口阀体、固定板、两块连接板、两个扭簧、第一折叠销和第二折叠销；所述阀口阀体的底部和顶部分别设有进液口和出液口，所述进液口与所述循环管道连通；所述固定板固定设置在所述阀口阀体内，固定板上对应出液口的位置设有通水孔；所述两块连接板的上端分别通过一个扭簧与固定板的两侧转动连接；所述第一折叠销和第二折叠销的一端分别与两块连接板的下端转动连接；所述第一折叠销和第二折叠销的另一端相互滑动连接并形成可调入水口，第一折叠销和第二折叠销靠近滑动时可调入水口缩小；水从进液口经过可调入水口后进入阀口阀体，并通过通水孔排出出液口。
采用上述进一步方案的有益效果是，当水压过高时，水顶起第一折叠销和第二折叠销，进而使两块连接板与固定板压缩扭簧，进而第一折叠销和第二折叠销相互靠近滑动，进而使可调入水口缩小，实现阀口流量基本不变的目的。
为了更好地理解和实施，下面结合附图详细说明本发明。
附图说明
图1为本发明的汲水系统的第一结构示意图；
图2为本发明的汲水系统的第二结构示意图；
图3为本发明的汲水系统的内部结构示意图；
图4为图3中A处的局部放大图；
图5为本发明的汲水罐和储水罐内的固定单向阀的剖面结构示意图；
图6为本发明的浮动单向阀和浮子开关的结构剖面示意图；
图7为图6中B处的局部放大图；
图8为本发明的第一阀口的结构示意图；
图9为本发明的第一阀口的结构剖面示意图；
图10为本发明的第二阀口的结构示意图；
图11为本发明的第二阀口的第一内部结构示意图；
图12为本发明的第二阀口的第二内部结构示意图。
图中：11、水泵；12、水源；2、循环水管；3、汲水罐；4、储水罐；41、备用出水管；5、正负压衔接罐；51、浮动单向阀；511、筒体；5111、出水口；512、平行柱；513、水压被动盘；514、压力弹簧；52、浮子开关；521、连通管；522、阀门片；523、杠杆；524、浮子件；525、限位卡；526、拉力弹簧；6、阀口；61、阀口阀体；611、进液口；612、出液口；62、立柱；621、锥台；63、浮动销；631、通孔；64、阻挡盘；651、固定板；6511、通水孔；652、连接板；653、扭簧；654、第一折叠销；655、第二折叠销；656、可调入水口；7、固定单向阀；71、固定阀体；72、法兰；721、法兰孔；73、弹性片；81、解压管；82、进气阀；9、移动平台。
具体实施方式
请参阅图1至图12，本实施例的一种汲水系统，包括水泵11、循环水管2、汲水罐3、两个储水罐4、正负压衔接罐5、至少一个阀口6；
具体的，所述水泵11的输入端通过管道以及汲水罐3与水源12连接；
更具体的，所述汲水罐3内设有固定单向阀7；所述水源12通过管道与汲水罐3的固定单向阀7的入口连通；所述水泵11的输入端通过管道与汲水罐3的底部连通；
参考图5，所述固定单向阀7包括固定阀体71、法兰72和弹性片73；该固定阀体71设置在汲水罐3内的底部，固定阀体71的入口设置在其底部，所述水源12通过管道穿过汲水罐3的罐体与固定阀体71底部的入口连接；所述法兰72固定设置在阀体内，法兰72的周侧轮廓与固定阀体71的内壁密封对应，法兰72的端面上沿其周向设有法兰72孔，所述弹性片73设置在法兰72的一端，并覆盖各法兰72孔；在水泵11的作用下，水从水源12抽取，并通过固定阀体71的入口进入法兰72孔，水均匀地顶起弹性片73顶起弹性片73再从固定阀体71的出口排出到汲水罐3内，进而经管道进入水泵11；弹性片73可用塑胶材料也可用金属材料制成，本实施例优选弹性片73为胶片。
具体的，所述水泵11的输出端通过管道以及储水罐4与循环水管2的输入端连接；
更具体的，本实施例中储水罐4共设置两个，储水罐4内均设有固定单向阀7；所述水泵11的输出端通过管道分别与两个储水罐4的固定单向阀7的入口连通；所述循环水管2的输入端通过管道与其中一个储水罐4的底部连通；另一个储水罐4的底部连接有备用出水管41，该备用出水管41在不使用使为封闭状态，当汲水系统需要拓展使用时，可接入外部 其他管道实现拓展供水；
参考图5，所述固定单向阀7包括固定阀体71、法兰72和弹性片73；该固定阀体71设置在储水罐4内的底部，固定阀体71的入口设置在其顶部，所述水泵11的输出端通过管道穿过储水罐4的罐体与固定阀体71顶部的入口连接；所述法兰72固定设置在阀体顶部，法兰72的周侧轮廓与固定阀体71的内壁密封对应，法兰72的端面上沿其周向设有法兰72孔，所述弹性片73设置在法兰72的上方，并覆盖各法兰72孔；水进入固定阀体71后，当固定阀体71内水满后，水涌入法兰72孔，并顶起弹性片73排出到储水罐4内。
具体的，参考图4、图6和图7，所述正负压衔接罐5内设有浮动单向阀51、固定单向阀7和浮子开关52；所述循环水管2的输出端与所述固定单向阀7的输入口连接，所述固定单向阀7的输出口与所述浮动单向阀51的输入口连接，所述浮动单向阀51的输出口以及浮子开关52的输入口与正负压衔接罐5内部连通；水泵11的输入端通过管道与浮子开关52的输出口连通连接；
更具体的，所述固定单向阀7包括固定阀体71、法兰72和弹性片73；所述固定阀体71设置在正负压衔接罐5的底部；所述循环水管2的输出端穿过正负压衔接罐5的底部与固定阀体71的底部的输入口连通连接；所述法兰72固定设置在阀体内，法兰72的周侧轮廓与固定阀体71的内壁密封对应，法兰72的端面上沿其周向设有法兰72孔，所述弹性片73设置在法兰72的一端，并覆盖各法兰72孔；
所述浮动单向阀51包括筒体511、平行柱512、水压被动盘513和压力弹簧514；所述筒体511垂直设置在所述正负压衔接罐5内的固定阀体71的上方，本实施例优选筒体511与正负压衔接罐5内的固定阀体71一体连接，因此无需通过管道连接筒体511和固定阀体71，达到节省空间减少零件的效果；所述平行柱512滑动设置在筒体511内的中心位置；所述水压被动盘513设置在所述平行柱512的底部，且水压被动盘513的周侧轮廓与筒体511内壁轮廓密封对应；所述压力弹簧514套设在平行柱512上，压力弹簧514的上下两端分别与筒体511的内顶面以及水压被动盘513的顶面接触；所述筒体511的侧壁上设有若干出水口5111，出水口5111的数量以及面积可根据汲水系统的供水量和压力进行协调匹配选择；水从固定阀体71的入口进入法兰72孔，并顶起弹性片73进入到固定阀体71与筒体511共有的内部空间，水达到一定量后可顶起所述水压被动盘513并从筒体511的出水口5111排出到正负压衔接罐5内；
更具体的，所述浮子开关52包括连通管521、阀门片522、杠杆523、浮子件524、限位卡525和拉力弹簧526；所述连通管521垂直设置在正负压衔接罐5内的底部，所述水泵11的输入端与连通管521的输出端连通；所述阀门片522通过转轴转动设置在连通管521 内，阀门片522的侧面轮廓与连通管521的内壁轮廓密封对应；所述杠杆523的一端与阀门片522的转轴连接，杠杆523与阀门片522同步转动；所述浮子件524设置在杠杆523的另一端上，所述浮子件524内部中空；所述限位卡525设置在连通管521的外侧面，用于限定杠杆523的摆角；所述拉力弹簧526的两端分别与所述连通管521的外侧以及所述杠杆523的杆体连接，用于限制浮子件524浮起。
作为另一种实现，本发明的汲水系统还包括两条解压管81；其中一条解压管81的一端与所述正负压衔接罐5的顶部连通，另一条解压管81的一端与所述汲水罐3的顶部连通；解压管81的另一端均单独设有进气阀82。
作为另一种实现，本发明的汲水系统还包括移动平台9；所述水泵11、正负压衔接罐5、汲水罐3和储水罐4均设置在移动平台9上。
作为另一种实现，所述阀口6设置在所述循环水管2上，阀口6的数量以及分布根据作业面积和状况进行对应的设置；阀口6的基本特点要求是无论路径上的某个区间压力的时荷大小，都不会改变阀口6的输出量，其结构的实现具有很多形式，下面仅提供两一种具体的阀口6结构作参考；
第一阀口6的结构形式参考图8和图9：所述第一阀口6包括阀口阀体61、立柱62和浮动销63；所述阀口阀体61的侧面的底部设有进液口611，所述阀口阀体61的顶部设有出液口612；所述立柱62固定设置在阀口阀体61内，立柱62的侧面与阀口阀体61的内壁留有间隙；所述浮动销63滑动设置在立柱62的中心位置上，浮动销63的外侧面与阀口阀体61的内壁贴合；立柱62的上下两端分别延伸至浮动销63的上下两端之外，所述立柱62的顶部设有阻挡盘64，阻挡盘64的面积大于所述出液口612的面积，阻挡盘64与出液口612之间留有间隙；所述浮动销63的顶面绕其周向均布地设有若干通孔631，所述通孔631连通进液口611和出液口612；所述立柱62的底部设有锥台621，所述浮动销63的底面形状向内凹并与锥台621的顶面对应；所述锥台621的顶面位置与进液口611的位置对应；水从进液口611进入阀口阀体61，并依次经过锥台621顶面、通孔631从出液口612排出；
上述的第一阀口6结构，在水压力相对较低时，由于浮动销63底部凹型，而立柱62底端呈锥台621形，此时锥台621位置的流量空间不大，但上部的阻挡盘64的流量输出空间大，而水压力大时，此形势的结构将逆转互换，实现阀口6输出量基本不变的目的。
第二阀口6的结构形式参考图10和图12，所述第二阀口6包括阀口阀体61、固定板651、两块连接板652、两个扭簧653、第一折叠销654和第二折叠销655；所述阀口阀体61的底部和顶部分别设有进液口611和出液口612，所述进液口611与所述循环管道连通；所述固定板651固定设置在所述阀口阀体61内，固定板651上对应出液口612的位置设有通水孔 6511；所述两块连接板652的上端分别通过一个扭簧653与固定板651的两侧转动连接；所述第一折叠销654和第二折叠销655的一端分别与两块连接板652的下端转动连接；所述第一折叠销654和第二折叠销655的另一端相互滑动连接并形成可调入水口656，第一折叠销654和第二折叠销655靠近滑动时可调入水口656缩小；水从进液口611经过可调入水口656后进入阀口阀体61，并通过通水孔6511排出出液口612；
上述的第二阀口6结构，当水压过高时，水顶起第一折叠销654和第二折叠销655，进而使两块连接板652与固定板651压缩扭簧653，进而第一折叠销654和第二折叠销655相互靠近滑动，进而使可调入水口656缩小，实现阀口6流量基本不变的目的。
本实施例的工作原理：
当汲水系统工作时，水泵11提供动力，使水源12的水通过管道进入汲水罐3；由于汲水罐3内设有固定单向阀7，可避免进入汲水罐3后的水回流到水源12；进而水从汲水罐3抽取到水泵11内，水泵11再将水输出到两个储水罐4内；同理，储水罐4内均设有固定单向阀7，因此可避免进入储水罐4后的水回流到水泵11内；其中一个储水罐4作为备用，另一个储水罐4在水泵11的压力推进下将水排进循环管道内，并从各阀口6排出，并应用于农林灌溉、城市绿化及比较依赖于水源12支撑的不同产业中；
当循环管道压力超出循环管道以及各阀口6所需时，水从循环管道的输出端进入到正负压衔接罐5内，并以此通过其内部的固定单向阀7和浮动单向阀51，进而排进正负压衔接罐5内，具体为水从固定阀体71的入口进入法兰72孔，并顶起弹性片73进入到固定阀体71与筒体511共有的内部空间，水达到一定量后可顶起所述水压被动盘513并从筒体511的出水口5111排出到正负压衔接罐5内；
当水进入正负压衔接罐5内后，并非直接回流到水泵11内，而是暂存在正负压衔接罐5内；待水的量足够，利用水的浮力使浮子件524浮起，浮子件524带动杠杆523以及阀门片522转动，进而使连通管521打开，水泵11提供压力，将正负压衔接罐5内的水抽出，并循环使用，同时减少了水源12的抽取量，节省了水源12；
用户可通过调节限位卡525的位置限制阀片的最大转动角度，以调节连通管521的最大排水量；
由于通过浮动单向阀51循环的交流水量相对有限，就需要一个与之相匹配的力来限制，因为不加以限制，浮子开关52一旦启动，就会完全把正负压衔接罐5内的流量最大化，这样正负压衔接罐5会产生较大的负压，与浮动单向阀51匹配不协调，影响系统的相对稳定性，通过设置一个拉力弹簧526，与浮子的杠杆523走向形成反差，实现限制力的效果；
当汲水系统作业完成后，通过设置解压管81，可在汲水系统作业完成后，通过打开进气 阀82，使水泵11把正负压衔接罐5以及汲水罐3内的水排干净。
相对于现有技术，本发明的循环水管的路径达至的距离、阀口不同大小的落差，与浮动单向阀设置的压力值成正比；通过设置合适的浮动单向阀充当介子，与循环水管的各阀口的作业条件相匹配相协调，实现循环水管内以及各阀口的压力保障，且在循环水管内的压力满足各阀口需求后，水可通过浮动单向阀进入正负压衔接罐，保证系统压力以及水量供给的恰到好处，大大提高汲水系统的工作效率；同时本发明实现水的循环回流到水泵，降低水源的供给量，可达到节约能源的目的；
另外，通过将循环水管的压力与系统整体匹配协调，保证阀口的压力与流量相互协调，避免阀口出现水柱等现象，进而实现节能的目的。
本发明还具有以下有益效果：
(1)通过选择合适的筒体、压力弹簧，与汲水系统的整体压力实现匹配协调；当循环水管内水压过大时，水可克服压力弹簧的弹力顶起水压被动盘，进而进入筒体并排进正负压衔接罐内，并从正负压衔接罐内回流到水泵，实现循环。
(2)通过设置浮子开关，使浮动单向阀更好地与汲水系统匹配协调，正负压衔接罐内可暂存部分水，利用浮子件设置具备的空腔，相对于水密度能够构成的浮力，利用杠杆原理，使浮子件与阀门片联动，在汲水系统运行过程中，就会大大降低浮动单向阀在不同条件下，应需的一定匹配标准，同时在制造环节上，也能起到降低成本，便于应用的普及前景，增强潜力的效果；
(3)通过设置固定单向阀，可避免水从浮动单向阀的筒体倒流到循环水管内，保证汲水系统压力稳定。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。

Claims (10)

  1. 一种汲水系统，其特征在于，包括
    水泵，所述水泵的输入端通过管道与水源连接；
    循环水管，所述水泵的输出端与循环水管的输入端连接；
    正负压衔接罐，所述正负压衔接罐内设有浮动单向阀，所述循环水管的输出端穿过正负压衔接罐与所述浮动单向阀的入口连通；所述水泵的输入端还通过管道与所述正负压衔接罐连通；
    至少一个阀口，所述阀口设置在所述循环水管上。
  2. 根据权利要求1所述的汲水系统，其特征在于，所述浮动单向阀包括筒体、平行柱、水压被动盘和压力弹簧；所述筒体垂直设置在所述正负压衔接罐内；所述平行柱滑动设置在筒体内的中心位置；所述水压被动盘设置在所述平行柱的底部，且水压被动盘的周侧轮廓与筒体内壁轮廓密封对应；所述压力弹簧套设在平行柱上，压力弹簧的上下两端分别与筒体的内顶面以及水压被动盘的顶面接触；所述筒体的侧壁上设有若干出水口；所述循环水管的输出端穿过正负压衔接罐与筒体的底部连通，水可顶起水压被动盘并从出水口排出到正负压衔接罐内。
  3. 根据权利要求1所述的汲水系统，其特征在于，所述正负压衔接罐内的底部还设有浮子开关；所述正负压衔接罐通过所述浮子开关的输出口与水泵的输入端连通。
  4. 根据权利要求3所述的汲水系统，其特征在于，所述浮子开关包括连通管、阀门片、杠杆、浮子件、限位卡；所述连通管垂直设置在正负压衔接罐内的底部，所述水泵的输入端与连通管的输出端连通；所述阀门片通过转轴转动设置在连通管内，阀门片的侧面轮廓与连通管的内壁轮廓密封对应；所述杠杆的一端与阀门片的转轴连接，杠杆与阀门片同步转动；所述浮子件设置在杠杆的另一端上，所述浮子件内部中空；所述限位卡设置在连通管的外侧面，用于限定杠杆的摆角。
  5. 根据权利要求4所述的汲水系统，其特征在于，所述浮子开关还包括拉力弹簧；所述拉力弹簧的两端分别与所述连通管的外侧以及所述杠杆的杆体连接，用于限制浮子件浮起。
  6. 根据权利要求1～5任意一项所述的汲水系统，其特征在于，所述正负压衔接罐内还设有固定单向阀；所述循环水管的输出端与筒体的底部通过所述固定单向阀导通连接。
  7. 根据权利要求6所述的汲水系统，其特征在于，还包括汲水罐；所述汲水罐内设有 固定单向阀；所述水源通过管道与汲水罐的固定单向阀的入口连通；所述水泵的输入端通过管道与汲水罐的底部连通。
  8. 根据权利要求7所述的汲水系统，其特征在于，还包括至少一个储水罐；所述水泵的输出端与循环水管的输入端通过所述储水罐连接；所述储水罐内设有固定单向阀；所述水泵的输出端通过管道与储水罐的固定单向阀的入口连通；所述循环水管的输入端通过管道与储水罐的底部连通。
  9. 根据权利要求8所述的汲水系统，其特征在于，所述固定单向阀包括固定阀体、法兰和弹性片；所述法兰固定设置在阀体内，法兰的周侧轮廓与固定阀体的内壁密封对应，法兰的端面上沿其周向设有法兰孔，所述弹性片设置在法兰的一端，并覆盖各法兰孔；水从固定阀体的入口进入法兰孔，并顶起弹性片再从固定阀体的出口排出。
  10. 根据权利要求8所述的汲水系统，其特征在于，所述阀口包括阀口阀体、立柱和浮动销；所述阀口阀体的侧面的底部设有进液口，所述阀口阀体的顶部设有出液口；所述立柱固定设置在阀口阀体内，立柱的侧面与阀口阀体的内壁留有间隙；所述浮动销滑动设置在立柱的中心位置上，浮动销的外侧面与阀口阀体的内壁贴合；立柱的上下两端分别延伸至浮动销的上下两端之外，所述立柱的顶部设有阻挡盘，阻挡盘的面积大于所述出液口的面积，阻挡盘与出液口之间留有间隙；所述浮动销的顶面绕其周向均布地设有若干通孔，所述通孔连通进液口和出液口；所述立柱的底部设有锥台，所述浮动销的底面形状向内凹并与锥台的顶面对应；所述锥台的顶面位置与进液口的位置对应；水从进液口进入阀口阀体，并依次经过锥台顶面、通孔从出液口排出；或
    所述阀口包括阀口阀体、固定板、两块连接板、两个扭簧、第一折叠销和第二折叠销；所述阀口阀体的底部和顶部分别设有进液口和出液口，所述进液口与所述循环管道连通；所述固定板固定设置在所述阀口阀体内，固定板上对应出液口的位置设有通水孔；所述两块连接板的上端分别通过一个扭簧与固定板的两侧转动连接；所述第一折叠销和第二折叠销的一端分别与两块连接板的下端转动连接；所述第一折叠销和第二折叠销的另一端相互滑动连接并形成可调入水口，第一折叠销和第二折叠销靠近滑动时可调入水口缩小；水从进液口经过可调入水口后进入阀口阀体，并通过通水孔排出出液口。
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