CN104234133B - Intelligent groundwater mining and backflow device - Google Patents
Intelligent groundwater mining and backflow device Download PDFInfo
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- CN104234133B CN104234133B CN201410465428.3A CN201410465428A CN104234133B CN 104234133 B CN104234133 B CN 104234133B CN 201410465428 A CN201410465428 A CN 201410465428A CN 104234133 B CN104234133 B CN 104234133B
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- 239000003673 groundwater Substances 0.000 title claims abstract description 16
- 238000005065 mining Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000000605 extraction Methods 0.000 claims abstract description 22
- 238000005086 pumping Methods 0.000 claims abstract description 12
- 210000004907 gland Anatomy 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 28
- 239000010720 hydraulic oil Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/406—Aquifer recharge
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Abstract
本发明公开了一种智能型地下水抽取及回灌装置，包括抽水泵、导流管，在抽水泵与导流管连接处还设有抽取回灌双用阀和止回阀，还设有液压泵、第一液压油缸和第二液压油缸，第一液压油缸和第二液压油缸分别与抽取回灌双用阀相连接，还设有控制器，液压泵通过液压泵电缆与控制器相连接，电磁阀通过电磁阀控制电缆与控制器相连接，抽水泵通过抽水泵电缆与控制器相连接，第一限位开关和第二限位开关分别与控制器的限位输入端相连接，在导流管上设有水压传感器。本发明的结构简单，使用方便快捷，而且导流管上设有水压传感器，减少回灌含水层的气堵程度，使用稳定性好，同时通过抽取回灌双用阀可以调节回灌流量，控制准确性强，适用性好。
The invention discloses an intelligent groundwater pumping and refilling device, which includes a water pump and a diversion pipe. A pumping and refilling dual-purpose valve and a check valve are also provided at the connection between the water pump and the diversion pipe, and a hydraulic pressure pump is also provided. The pump, the first hydraulic cylinder and the second hydraulic cylinder, the first hydraulic cylinder and the second hydraulic cylinder are respectively connected to the dual-purpose valve for extraction and refilling, and a controller is also provided, and the hydraulic pump is connected to the controller through a hydraulic pump cable. The solenoid valve is connected to the controller through the solenoid valve control cable, the water pump is connected to the controller through the water pump cable, and the first limit switch and the second limit switch are respectively connected to the limit input end of the controller. A water pressure sensor is provided on the flow pipe. The structure of the present invention is simple, convenient and quick to use, and a water pressure sensor is provided on the diversion pipe, which reduces the degree of gas blockage in the recharge aquifer, and has good stability in use. Strong control accuracy and good applicability.
Description
技术领域technical field
本发明属于地下水抽取及回灌技术领域，具体涉及一种智能型地下水抽取及回灌装置。The invention belongs to the technical field of groundwater pumping and recharging, and in particular relates to an intelligent groundwater pumping and recharging device.
背景技术Background technique
地下水抽水-回灌是地下资源循环利用的有效方法，目前地下水回灌的方法有地面自然下渗、向机井内自由落水回灌、向独立回灌井内下回灌管回灌等方式。地面自然下渗回灌效率太低，难以满足采补平衡，后两种方法存在水流自由下落，下落后在井内形成许多大小不等的气泡，有许多气泡不易消失，在渗流的过程中就会附着在土壤的空隙间堵塞含水层孔隙，随着时间推移，含水层就会逐渐被堵塞，回灌效率会很大的降低，甚至回灌井报废；另向独立回灌井内下回灌管回灌需增加一套回灌管路，增加回灌投资，一定程度上影响使用稳定性，同时控制准确度较低，难以满足市场的需求，适用性受到影响。Groundwater pumping-recharge is an effective method for the recycling of underground resources. At present, the methods of groundwater recharge include natural infiltration of the ground, recharge into the free falling water in the machine well, and recharge into the recharge pipe in the independent recharge well. The efficiency of natural infiltration and recharge on the ground is too low to meet the balance of recovery and replenishment. In the latter two methods, the water flow falls freely, and many air bubbles of different sizes are formed in the well after falling. Many air bubbles are not easy to disappear. The gaps attached to the soil block the pores of the aquifer. As time goes by, the aquifer will gradually be blocked, the recharge efficiency will be greatly reduced, and the recharge well will even be scrapped; It is necessary to add a set of recharge pipelines for irrigation, which will increase the investment of recharge, which will affect the stability of use to a certain extent. At the same time, the control accuracy is low, it is difficult to meet the needs of the market, and the applicability is affected.
发明内容Contents of the invention
为解决上述技术问题，本发明提供一种结构简单，使用稳定性好且控制准确度高的智能型地下水抽取及回灌装置。In order to solve the above technical problems, the present invention provides an intelligent groundwater pumping and recharging device with simple structure, good stability in use and high control accuracy.
实现本发明目的的技术方案是：一种智能型地下水抽取及回灌装置，包括抽水泵、与所述抽水泵相连接的导流管，在所述抽水泵与导流管连接处还设有抽取回灌双用阀，在所述抽取回灌双用阀与抽水泵之间设有止回阀，还设有液压泵、与所述液压泵出口端相连接的第一液压油缸和第二液压油缸，所述第一液压油缸和第二液压油缸分别与所述抽取回灌双用阀相连接，且所述抽取回灌双用阀在第一液压油缸和第二液压油缸的控制下处于打开或关闭，在所述液压泵的出口端设有电磁阀，还设有控制器，所述液压泵通过液压泵电缆与所述控制器的液压泵控制端相连接，所述电磁阀通过电磁阀控制电缆与控制器的电磁阀控制端相连接，所述抽水泵通过抽水泵电缆与控制器的抽水泵控制端相连接，还设有与所述第一液压油缸相配合的第一限位开关，与所述第二液压油缸相配合的第二限位开关，所述第一限位开关和第二限位开关分别与所述控制器的限位输入端相连接，在所述导流管上设有水压传感器，所述水压传感器与所述控制器的输入信号端相连接。The technical solution for realizing the purpose of the present invention is: an intelligent groundwater pumping and recharging device, including a water pump, a guide pipe connected to the water pump, and a water pump connected to the water guide pipe. A dual-purpose valve for extraction and refilling, a check valve is provided between the dual-purpose valve for extraction and refilling and the water pump, a hydraulic pump, a first hydraulic cylinder connected to the outlet end of the hydraulic pump, and a second A hydraulic cylinder, the first hydraulic cylinder and the second hydraulic cylinder are respectively connected to the dual-purpose valve for extraction and refilling, and the dual-purpose valve for extraction and refilling is under the control of the first hydraulic cylinder and the second hydraulic cylinder. To open or close, a solenoid valve is provided at the outlet end of the hydraulic pump, and a controller is also provided. The hydraulic pump is connected to the hydraulic pump control end of the controller through a hydraulic pump cable, and the solenoid valve is connected through a solenoid The valve control cable is connected to the solenoid valve control end of the controller, and the water pump is connected to the water pump control end of the controller through the water pump cable, and a first limiter matched with the first hydraulic cylinder is also provided. switch, the second limit switch matched with the second hydraulic cylinder, the first limit switch and the second limit switch are respectively connected to the limit input end of the controller, A water pressure sensor is arranged on the pipe, and the water pressure sensor is connected with the input signal end of the controller.
在所述第一液压油缸上还设有第一油压力传感器，在所述第二液压油缸上设有第二油压传感器，所述第一油压力传感器和第二油压力传感器分别与所述控制器的油压信号输入端相连接。A first oil pressure sensor is also arranged on the first hydraulic oil cylinder, a second oil pressure sensor is arranged on the second hydraulic oil cylinder, and the first oil pressure sensor and the second oil pressure sensor are respectively connected with the The oil pressure signal input terminal of the controller is connected.
所述抽取回灌双用阀包括环形阀体、设置在所述环形阀体的壁面上的出水孔，在所述环形阀体的两端分别设有进油孔，两个进油孔分别与第一液压油缸和第二液压油缸相连接，在所述环形阀体内设有套环和推杆，所述套环竖贴且上下移动在环形阀体的内壁上，在所述环形阀体的两端均设有内管和密封压盖，所述第一液压油缸和第二液压油缸伸入所述内管设置，在所述内管内还设有活塞，所述活塞通过推杆与所述套环相连接，通过调整两个进油孔油压力进而推动活塞移动，使活塞推动套环在环形阀体壁面上移动开启或关闭环形阀体出水孔。The extraction-refill dual-purpose valve includes an annular valve body, a water outlet hole arranged on the wall surface of the annular valve body, oil inlet holes are respectively arranged at both ends of the annular valve body, and the two oil inlet holes are respectively connected with The first hydraulic oil cylinder is connected with the second hydraulic oil cylinder, and a collar and a push rod are arranged in the annular valve body. The collar sticks vertically and moves up and down on the inner wall of the annular valve body. Both ends are provided with an inner tube and a sealing gland, the first hydraulic cylinder and the second hydraulic cylinder are inserted into the inner tube, and a piston is also arranged in the inner tube, and the piston communicates with the said inner tube through a push rod. The collars are connected to each other, and the piston is moved by adjusting the oil pressure of the two oil inlet holes, so that the piston pushes the collar to move on the wall of the annular valve body to open or close the water outlet hole of the annular valve body.
所述控制器包括水压信号接收电路、油压信号接收电路、限位开关信号接收电路、处理电路、显示电路、液压泵驱动电路、电磁阀驱动电路和抽水泵驱动电路，所述水压信号接收电路、油压信号接收电路和限位开关信号接收电路与处理电路的信号输入端相连接，所述液压泵驱动电路、电磁阀驱动电路和抽水泵驱动电路与所述处理电路的输出端相连接，所述显示电路与处理电路的显示端相连接，所述水压信号接收电路与所述水压传感器相连接，所述油压信号接收电路与第一油压力传感器和第二油压力传感器相连接，所述限位开关信号接收电路与所述第一限位开关和第二限位开关相连接，所述液压泵驱动电路与所述液压泵相连接，所述电磁阀驱动电路与所述电磁阀相连接，所述抽水泵驱动电路与所述抽水泵相连接。The controller includes a water pressure signal receiving circuit, an oil pressure signal receiving circuit, a limit switch signal receiving circuit, a processing circuit, a display circuit, a hydraulic pump driving circuit, a solenoid valve driving circuit and a water pump driving circuit. The receiving circuit, the oil pressure signal receiving circuit and the limit switch signal receiving circuit are connected to the signal input end of the processing circuit, and the hydraulic pump driving circuit, solenoid valve driving circuit and water pump driving circuit are connected to the output end of the processing circuit. connected, the display circuit is connected to the display terminal of the processing circuit, the water pressure signal receiving circuit is connected to the water pressure sensor, and the oil pressure signal receiving circuit is connected to the first oil pressure sensor and the second oil pressure sensor The limit switch signal receiving circuit is connected with the first limit switch and the second limit switch, the hydraulic pump drive circuit is connected with the hydraulic pump, and the solenoid valve drive circuit is connected with the The solenoid valve is connected, and the water pump driving circuit is connected with the water pump.
本发明具有积极的效果：本发明的结构简单，使用方便快捷，设有抽取回灌双用阀和液压泵及第一液压油缸和第二液压油缸，通过液压泵控制液压油缸实现抽取回灌双用阀打开或关闭，从而完成地下水的回灌或抽取，使用方便快捷，而且导流管上设有水压传感器，可以保证回灌时导流管内水压稳定，不易长生气蚀或微小气泡，减少回灌含水层的气堵程度，使用稳定性好，同时通过抽取回灌双用阀可以调节回灌流量，控制准确性强，适用性好。The present invention has positive effects: the present invention is simple in structure, convenient and quick to use, and is provided with a dual-purpose valve for extraction and refilling, a hydraulic pump, a first hydraulic cylinder and a second hydraulic cylinder, and the dual purpose of extraction and refilling is realized by controlling the hydraulic cylinder through the hydraulic pump. Use the valve to open or close, so as to complete the recharge or extraction of groundwater, which is convenient and quick to use, and the water pressure sensor is installed on the diversion pipe, which can ensure that the water pressure in the diversion pipe is stable during recharge, and it is not easy to grow cavitation or tiny bubbles. It reduces the degree of air blockage in the recharge aquifer, and has good stability in use. At the same time, the recharge flow can be adjusted through the dual-purpose valve for extraction and recharge, with strong control accuracy and good applicability.
附图说明Description of drawings
为了使本发明的内容更容易被清楚的理解，下面根据具体实施例并结合附图，对本发明作进一步详细的说明，其中：In order to make the content of the present invention more easily understood, the present invention will be described in further detail below according to specific embodiments in conjunction with the accompanying drawings, wherein:
图1为本发明的结构示意图图；Fig. 1 is a structural schematic diagram of the present invention;
图2为图1中抽取回灌双用阀的具体结构示意图；Fig. 2 is a specific structural schematic diagram of the dual-purpose valve for extraction and refilling in Fig. 1;
图3为图1中控制器的结构框图。FIG. 3 is a structural block diagram of the controller in FIG. 1 .
具体实施方式Detailed ways
(实施例1)(Example 1)
图1至图3显示了本发明的一种具体实施方式，其中图1为本发明的结构示意图图；图2为图1中抽取回灌双用阀的具体结构示意图；图3为图1中控制器的结构框图。Figures 1 to 3 show a specific embodiment of the present invention, wherein Figure 1 is a schematic structural view of the present invention; Figure 2 is a schematic view of the specific structure of the dual-purpose valve for extraction and refilling in Figure 1; Block diagram of the controller.
见图1至图3，一种智能型地下水抽取及回灌装置，包括抽水泵1、与所述抽水泵1相连接的导流管2，在所述抽水泵1与导流管2连接处还设有抽取回灌双用阀3，在所述抽取回灌双用阀3与抽水泵1之间设有止回阀4，还设有液压泵5、与所述液压泵5出口端相连接的第一液压油缸6和第二液压油缸7，所述第一液压油缸6和第二液压油缸7分别与所述抽取回灌双用阀3相连接，且所述抽取回灌双用阀3在第一液压油缸6和第二液压油缸7的控制下处于打开或关闭，在所述液压泵5的出口端设有电磁阀8，还设有控制器9，所述液压泵5通过液压泵电缆10与所述控制器9的液压泵控制端相连接，所述电磁阀8通过电磁阀控制电缆11与控制器9的电磁阀控制端相连接，所述抽水泵1通过抽水泵电缆12与控制器9的抽水泵控制端相连接，还设有与所述第一液压油缸6相配合的第一限位开关13，与所述第二液压油缸7相配合的第二限位开关14，所述第一限位开关13和第二限位开关14分别与所述控制器9的限位输入端相连接，在所述导流管2上设有水压传感器15，所述水压传感器15与所述控制器9的输入信号端相连接。See Figures 1 to 3, an intelligent groundwater pumping and recharging device, including a water pump 1, a guide pipe 2 connected to the water pump 1, at the junction of the water pump 1 and the guide pipe 2 There is also a dual-purpose valve 3 for extraction and refilling, a check valve 4 is provided between the dual-purpose valve 3 for extraction and refilling and the pump 1, a hydraulic pump 5 is also provided, and a hydraulic pump 5 is connected to the outlet end of the hydraulic pump 5. The connected first hydraulic cylinder 6 and the second hydraulic cylinder 7, the first hydraulic cylinder 6 and the second hydraulic cylinder 7 are respectively connected with the extraction and refill dual-purpose valve 3, and the extraction and refill dual-purpose valve 3 is opened or closed under the control of the first hydraulic cylinder 6 and the second hydraulic cylinder 7, a solenoid valve 8 is provided at the outlet end of the hydraulic pump 5, and a controller 9 is also provided, and the hydraulic pump 5 passes the hydraulic pressure The pump cable 10 is connected to the hydraulic pump control end of the controller 9, the solenoid valve 8 is connected to the solenoid valve control end of the controller 9 through a solenoid valve control cable 11, and the water pump 1 is connected to the water pump 1 through a water pump cable 12. It is connected with the water pump control end of the controller 9, and is also provided with a first limit switch 13 matched with the first hydraulic cylinder 6, and a second limit switch 14 matched with the second hydraulic cylinder 7 , the first limit switch 13 and the second limit switch 14 are respectively connected to the limit input end of the controller 9, a water pressure sensor 15 is arranged on the guide tube 2, and the water pressure The sensor 15 is connected to the input signal terminal of the controller 9 .
在所述第一液压油缸6上还设有第一油压力传感器16，在所述第二液压油缸7上设有第二油压传感器17，所述第一油压力传感器16和第二油压力传感器17分别与所述控制器9的油压信号输入端相连接。A first oil pressure sensor 16 is also arranged on the first hydraulic oil cylinder 6, a second oil pressure sensor 17 is arranged on the second hydraulic oil cylinder 7, and the first oil pressure sensor 16 and the second oil pressure The sensors 17 are respectively connected with the oil pressure signal input terminals of the controller 9 .
所述抽取回灌双用阀3包括环形阀体31、设置在所述环形阀体31的壁面上的出水孔32，在所述环形阀体31的两端分别设有进油孔33，两个进油孔分别与第一液压油缸6和第二液压油缸7相连接，在所述环形阀体31内设有套环34和推杆35，所述套环34竖贴且上下移动在环形阀体31的内壁上，在所述环形阀体31的两端均设有内管36和密封压盖37，所述第一液压油缸6和第二液压油缸7伸入所述内管36设置，在所述内管36内还设有活塞38，所述活塞38通过推杆35与所述套环34相连接，通过调整两个进油孔油压力进而推动活塞38移动，使活塞38推动套环34在环形阀体31壁面上移动开启或关闭环形阀体出水孔32。The extraction-refill dual-purpose valve 3 includes an annular valve body 31, a water outlet hole 32 arranged on the wall surface of the annular valve body 31, oil inlet holes 33 are respectively arranged at both ends of the annular valve body 31, and two Two oil inlet holes are respectively connected with the first hydraulic cylinder 6 and the second hydraulic cylinder 7, and a collar 34 and a push rod 35 are arranged in the annular valve body 31, and the collar 34 sticks vertically and moves up and down in the annular On the inner wall of the valve body 31, an inner pipe 36 and a sealing gland 37 are provided at both ends of the annular valve body 31, and the first hydraulic cylinder 6 and the second hydraulic cylinder 7 are inserted into the inner pipe 36 to set , a piston 38 is also provided in the inner tube 36, the piston 38 is connected with the collar 34 through a push rod 35, and the piston 38 is pushed to move by adjusting the oil pressure of the two oil inlet holes, so that the piston 38 pushes The collar 34 moves on the wall of the annular valve body 31 to open or close the water outlet hole 32 of the annular valve body.
所述控制器9包括水压信号接收电路91、油压信号接收电路92、限位开关信号接收电路93、处理电路94、显示电路95、液压泵驱动电路96、电磁阀驱动电路97和抽水泵驱动电路98，所述水压信号接收电路91、油压信号接收电路92和限位开关信号接收电路93与处理电路94的信号输入端相连接，所述液压泵驱动电路96、电磁阀驱动电路97和抽水泵驱动电路98与所述处理电路94的输出端相连接，所述显示电路95与处理电路94的显示端相连接，所述水压信号接收电路91与所述水压传感器15相连接，所述油压信号接收电路92与第一油压力传感器6和第二油压力传感器7相连接，所述限位开关信号接收电路93与所述第一限位开关13和第二限位开关14相连接，所述液压泵驱动电路96与所述液压泵5相连接，所述电磁阀驱动电路97与所述电磁阀8相连接，所述抽水泵驱动电路98与所述抽水泵1相连接。The controller 9 includes a water pressure signal receiving circuit 91, an oil pressure signal receiving circuit 92, a limit switch signal receiving circuit 93, a processing circuit 94, a display circuit 95, a hydraulic pump driving circuit 96, a solenoid valve driving circuit 97 and a water pump Drive circuit 98, the water pressure signal receiving circuit 91, the oil pressure signal receiving circuit 92 and the limit switch signal receiving circuit 93 are connected to the signal input end of the processing circuit 94, the hydraulic pump driving circuit 96, the solenoid valve driving circuit 97 and the water pump drive circuit 98 are connected to the output end of the processing circuit 94, the display circuit 95 is connected to the display end of the processing circuit 94, and the water pressure signal receiving circuit 91 is connected to the water pressure sensor 15. The oil pressure signal receiving circuit 92 is connected to the first oil pressure sensor 6 and the second oil pressure sensor 7, and the limit switch signal receiving circuit 93 is connected to the first limit switch 13 and the second limit switch The switch 14 is connected, the hydraulic pump driving circuit 96 is connected to the hydraulic pump 5, the solenoid valve driving circuit 97 is connected to the solenoid valve 8, and the water pump driving circuit 98 is connected to the water pump 1 connected.
抽取地下水时，此时将抽取回灌双用阀处于关闭状态，抽水泵运转，水流由水泵向上，止回阀在水流压力作用下被顶开，水流通过止回阀向上进入两用阀，水流继续向上进入抽水管。When extracting groundwater, the pumping-refilling dual-purpose valve is closed at this time, the pump is running, the water flows upward from the water pump, the check valve is pushed open under the pressure of the water flow, and the water flows upward through the check valve into the dual-purpose valve. Continue up into the suction pipe.
回灌时，此时抽水泵停止工作，回灌水在输水管内向下流动，当流动到止回阀时，由于止回阀是关闭状态，回灌水在输水管内逐渐集累，当积累到一定高度，回灌管内开始有压力，启动控制器，通过液压泵使抽取回灌双用阀逐渐处于打开状态，此时回灌水从抽取回灌双用阀的出水孔回灌，回灌管内从此始终有压力，回灌水从抽水-回灌两用阀的开孔中流出，水流是有压流，而不是自由落水流。During refilling, the pump stops working at this time, and the refilling water flows downward in the water delivery pipe. When it reaches the check valve, since the check valve is closed, the refilling water gradually accumulates in the water delivery pipe. At a certain height, there is pressure in the refill pipe, start the controller, and gradually open the pumping and refilling dual-purpose valve through the hydraulic pump. There is always pressure, and the recharge water flows out of the opening of the pump-recharge dual-purpose valve. The water flow is a pressurized flow, not a free fall flow.
本实施例的结构简单，使用方便快捷，设有抽取回灌双用阀和液压泵及第一液压油缸和第二液压油缸，通过液压泵控制液压油缸实现抽取回灌双用阀打开或关闭，从而完成地下水的回灌或抽取，使用方便快捷，而且导流管上设有水压传感器，可以保证回灌时导流管内水压稳定，不易长生气蚀或微小气泡，减少回灌含水层的气堵程度，使用稳定性好，同时通过抽取回灌双用阀可以调节回灌流量，控制准确性强，适用性好。The structure of this embodiment is simple, convenient and quick to use. It is equipped with a dual-purpose valve for extraction and refilling, a hydraulic pump, a first hydraulic cylinder and a second hydraulic cylinder, and the dual-purpose valve for extraction and refilling is opened or closed by controlling the hydraulic cylinder through the hydraulic pump. In order to complete the recharge or extraction of groundwater, it is convenient and quick to use, and the water pressure sensor is installed on the diversion pipe, which can ensure that the water pressure in the diversion pipe is stable during recharge, and it is not easy to grow cavitation or tiny bubbles, reducing the risk of recharging the aquifer The degree of air blockage and good stability in use. At the same time, the refilling flow can be adjusted through the extraction and refilling dual-purpose valve, with strong control accuracy and good applicability.
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而这些属于本发明的实质精神所引伸出的显而易见的变化或变动仍属于本发明的保护范围。Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or changes derived from the essential spirit of the present invention still belong to the protection scope of the present invention.
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