CN213872230U - Automatic system for groundwater pumping recharge test - Google Patents
Automatic system for groundwater pumping recharge test Download PDFInfo
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- CN213872230U CN213872230U CN202022830515.8U CN202022830515U CN213872230U CN 213872230 U CN213872230 U CN 213872230U CN 202022830515 U CN202022830515 U CN 202022830515U CN 213872230 U CN213872230 U CN 213872230U
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Abstract
The utility model discloses an automatic system for groundwater pumping recharge test, which comprises a pumping test mechanism, a recharge test mechanism and an electronic control mechanism, wherein the pumping test mechanism comprises a variable frequency water pump A, an electric valve A, a water meter A, a silt filter and a water receiver which are connected in sequence, and the variable frequency water pump A is arranged underwater in a recharge well; the recharge testing mechanism comprises an external water source, an electric valve C, a variable frequency water pump B and a water meter B which are connected in sequence; the water storage device is characterized by also comprising a branch water pipe connected with the water storage device, wherein an electric valve B is arranged on the branch water pipe; the electronic control mechanism comprises a controller, and a water level sensor and a pressure sensor which are connected with the controller, wherein the controller controls the opening and closing of the variable-frequency water pump and the electric valve by acquiring sensor information. The utility model discloses an in will drawing water experimental and recharging experimental integration one set of equipment to connect through the water receiver, still through electronic control mechanism, automated control draws water and recharges experimental and the process of raising back, reduce cost, raise the efficiency, the water economy resource.
Description
Technical Field
The utility model relates to a groundwater recharge test technical field especially relates to a groundwater is drawn water and is recharged automatic system.
Background
Ground subsidence is a geological environmental problem caused by the excess production of groundwater. With the rapid development of economic society of China, the phenomenon of underground water overstrain is increasingly serious, so that ground subsidence of different degrees occurs in a plurality of cities in the areas of North China plain, Guanzhong plain, Yangtze river mid-downstream plain and the like. The ground subsidence can cause the problems of sinking of building foundation, house cracking, underground pipeline damage, well pipe lifting, flood and storm surge disasters aggravation, etc., and has gradually aroused people's attention.
Groundwater recharge is to inject surface water or water from other sources into the ground by manual measures to supplement groundwater, and is an effective means to raise groundwater level and control ground settlement. The groundwater recharge mainly adopts a well recharge mode for the purpose of controlling ground settlement. The recharging process is mainly divided into a water pumping test and a recharging test. The purpose of the pumping test is to know the permeability and the water-rich property of the recharge stratum and provide hydrogeological data for the recharge test. Referring to the attached figure 1, the technical method of the water pumping test is that a water pumping pipe 2 is placed below the water surface in a recharging well 1, a water pumping test is carried out by using a water pump 3, the water pumping flow is controlled and the water level change is monitored by adopting the data of a water meter 4 and a water level measuring instrument 5, and the relevant hydrogeological parameters are measured. The purpose of the recharge test is to inject or press recharge water into a recharge well so as to recharge underground water. Referring to the attached figure 2, the technical method of the recharge test comprises the steps of firstly setting the total recharge water quantity, then determining the recharge water flow in unit time according to the permeability coefficient and the water inflow of a recharge stratum, pumping an external water source into a recharge well 1 through a water inlet pipe 6 by using a water suction pump 3, synchronously observing and recording the recharge water quantity and a dynamic water level in the recharge process, keeping the water level stable in the recharge process, and adjusting the recharge water flow until the water level is stable when the dynamic water level rises too fast. Long-time recharging can cause sediment to block pores of a well wall, so that water cannot be recharged into the stratum, and the recharging capacity is recovered through pumping and well flushing (commonly called pumping).
The prior groundwater recharge technology mainly has the following problems: 1. the water pumping test and the recharging test process both adopt a manual operation mode, the duration time of one water pumping test or one recharging test is generally 8-24 hours, the underground water level needs to be continuously observed and recorded, the water flow is regulated according to the underground water level, the test process is long in duration time, the operation machinery is complex, and the labor cost is high. 2. The mode of replacing a water pump or a manual regulating valve is adopted for flow regulation, so that accurate control of water flow is difficult to realize, and the test quality is influenced. 3. Equipment needs to be replaced in the alternate processes of water pumping and water irrigation, and the test efficiency is influenced. 4. The pumping test and the recharge test require pumping and discharging a large amount of underground water in the raising process, the drainage condition of the test site needs to be considered, the test is difficult to develop in the site without the drainage condition, and meanwhile, the discharge of the underground water also causes great waste of water resources.
Therefore, the above-mentioned existing groundwater pumping test device and recharge test device still have inconvenience and defects, and further improvement is needed. How can establish a new groundwater recharge test automatic system that draws water, make its automation realize the process of drawing water test, recharge test and raising back, reduce the cost of labor by a wide margin, promote the accurate control of discharge, improve test efficiency, and the water economy resource satisfies various experimental places and uses.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an groundwater recharge test automatic system, make its automation realize pumping test, recharge test and the process of raising back, reduce the cost of labor by a wide margin, promote the accurate control of discharge, improve test efficiency, and the water economy resource satisfies various experimental places and uses to overcome current groundwater test device and recharge test device's not enough.
In order to solve the technical problem, the utility model provides an automatic system for the groundwater pumping recharge test, which comprises a pumping test mechanism, a recharge test mechanism and an electronic control mechanism,
the pumping test mechanism comprises a variable frequency water pump A, an electric valve A, a water meter A, a sediment filter and a water storage device which are connected in sequence through a water pipe, the variable frequency water pump A is arranged under water in the recharging well,
the recharge testing mechanism comprises an external water source, an electric valve C and a variable frequency water pump B which are sequentially connected through a water pipe, the water pipe connected with the water outlet of the variable frequency water pump B extends into the recharge well, and a water meter B is arranged on the water pipe connected with the water outlet of the variable frequency water pump B; the recharging test mechanism also comprises a branch water pipe connected with the water storage device, one end of the branch water pipe is connected with an outlet of the water storage device, the other end of the branch water pipe is connected with an inlet of the variable frequency water pump B, and an electric valve B is arranged on the branch water pipe;
the electronic control mechanism comprises a controller, and a water level sensor and a pressure sensor which are connected with the controller, wherein the water level sensor is arranged on the outer wall of a water inlet pipe of the variable-frequency water pump A, the pressure sensor is arranged on a branch water pipe connected with a water outlet of the water receiver, and the controller controls the opening and closing operation of the variable-frequency water pump A, the electric valve A, the variable-frequency water pump B, the electric valve B and the electric valve C by acquiring the information of the water level sensor, the pressure sensor, the water meter A and the water meter B.
The water pumping test mechanism is characterized in that a manual valve A is arranged on a water pipe of the water pumping test mechanism, a manual valve C is arranged on a water pipe of the recharging test mechanism, and a manual valve B is arranged on a branch water pipe of the recharging test mechanism.
The improved water pumping test mechanism is characterized in that a check valve A is further arranged on the water pipe of the water pumping test mechanism, a check valve C is further arranged on the water pipe of the recharge test mechanism, and a check valve B is further arranged on the branch water pipe of the recharge test mechanism.
The improved water storage device has one sewage draining port in the bottom and one overflow port in the top.
In a further improvement, the reservoir employs a water tower of linear low density polyethylene material.
In a further refinement, said water reservoir includes a plurality of said water towers connected in series.
After adopting such design, the utility model discloses following advantage has at least:
1. the utility model discloses groundwater recharge test automation system has avoided the equipment of the recharge alternating in-process of drawing water to change through in will drawing water experimental and recharge experimental integration one set of equipment, satisfies the equipment requirement of raising back simultaneously, has improved groundwater recharge efficiency.
2. Still through adopting electronic control mechanism, through gathering groundwater bit data in real time, according to groundwater level automatically regulated water pump power and valve size to control draw water and recharge discharge, the experimental and the experimental continuous process that recharges of drawing water, degree of automation is high, reduces the cost of labor by a wide margin, and the mode of changing water pump or manual regulation valve relatively can promote the accurate control to discharge by a wide margin, improves experimental quality.
3. And the underground water pumped in the pumping test and the recharge test in the recharge test is reused in the recharge test by arranging the water storage device, so that the underground water can be used as a part of a recharge water source without considering the drainage condition of a test site, the application range is expanded, and the water-saving effect of water resources is achieved.
4. Still set up through the check valve, prevent the water refluence of test, recharge test and the in-process of raising back of drawing water, guarantee this automatic system's smooth operation. And the manual valve is arranged, so that rapid manual control under emergency is facilitated, and the operation reliability of the system is improved.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic structural diagram of a conventional groundwater pumping test device.
FIG. 2 is a schematic structural diagram of a conventional groundwater recharge test apparatus.
Fig. 3 is the structure schematic diagram of the automatic system of the groundwater recharge test of the utility model.
Detailed Description
Referring to fig. 3, the automatic system for groundwater pumping recharge test in the embodiment includes a pumping test mechanism, a recharge test mechanism and an electronic control mechanism.
The water pumping test mechanism comprises a variable frequency water pump A11, an electric valve A12, a water meter A13, a sediment filter 16 and a water storage device 17 which are connected in sequence through a water pipe, wherein the variable frequency water pump A11 is arranged under water in a recharging well 1 and used for pumping water in the recharging well into the water storage device 17. The silt filter 16 is used for removing solid particles such as silt in the pumped underground water, and the water receiver 17 is used for storing the pumped underground water, so that the pumped underground water is recycled, and water resources are saved.
The recharge testing mechanism comprises an external water source, an electric valve C22 and a variable frequency water pump B21 which are sequentially connected through a water pipe, the water pipe connected with the water outlet of the variable frequency water pump B21 extends into the recharge well 1, and a water meter B28 is arranged on the water pipe 29 connected with the water outlet of the variable frequency water pump B21. The variable frequency water pump B21 can recharge water from an external water source into the recharging well.
The recharging test mechanism further comprises a branch water pipe 20 connected with the water storage device 17, one end of the branch water pipe 20 is connected with an outlet of the water storage device 17, the other end of the branch water pipe 20 is connected with an inlet of the variable-frequency water pump B21, and an electric valve B26 is arranged on the branch water pipe 20. The branch water pipe is used for recharging water in the water storage device into the well to form water recycling, so that water resources are saved, and the branch water pipe is convenient to use in a test site without a drainage condition.
The electronic control mechanism is used for performing overall control and data recording and derivation, and comprises a controller 31, and a water level sensor 32 and a pressure sensor 33 which are connected with the controller. The water level sensor 32 is arranged on the outer wall of the water inlet pipe of the variable-frequency water pump A11 and is used for monitoring the underground water level in the recharging well in real time. The pressure sensor 33 is disposed on the branch water pipe 20 connected to the outlet of the reservoir 17 for monitoring the amount of water in the reservoir and indicating whether to recharge the reservoir with water. The controller 31 controls the opening and closing operations of the variable-frequency water pump A11, the electric valve A12, the variable-frequency water pump B21, the electric valve B26 and the electric valve C22 by acquiring the information of the water level sensor 32, the pressure sensor 33, the water meter A13 and the water meter B23, so that the automatic operation of the underground water pumping and recharging test automatic system is realized.
In this embodiment, the bottom of the reservoir 17 is provided with a drain outlet for draining sediment deposited at the bottom of the reservoir; the top of the water storage device 17 is provided with an overflow port for overflowing water with the capacity of the water storage device in the water pumping test.
In particular, the reservoir 17 is a water tower of linear low density polyethylene material, e.g. 6m high, 3.2m diameter, mean wall thickness not less than 22mm, 50m capacity3And the water tower interface is welded by a flange. And a plurality of water towers can be connected in series through water pipes to increase the water storage capacity of the water storage device.
In order to ensure the smooth operation of the automatic system, the water pipe of the water pumping test mechanism is also provided with a check valve A14, the water pipe of the recharging test mechanism is also provided with a check valve C24, and the branch water pipe 20 of the recharging test mechanism is also provided with a check valve B27, so that the water flow direction is well controlled, and the water backflow is prevented.
In order to improve the operation reliability of the system, a manual valve A15 is arranged on the water pipe of the pumping test mechanism, a manual valve C25 is arranged on the water pipe of the recharging test mechanism, and a manual valve B28 is arranged on the branch water pipe 20 of the recharging test mechanism.
The utility model discloses groundwater recharge test automatic system's theory of operation does: the electronic control mechanism controls the variable-frequency water pump A11 and the electric valve A12, receives the collected feedback data of the water meter A13 and the water level sensor 32, and realizes the automatic accurate operation of the water pumping test and the pumping process in the recharge test. Meanwhile, the groundwater extracted in the pumping test and the pumping process can be stored in a water storage device 17 after passing through a sediment filter 16 and used for recharging a water source in a recharging test. The electronic control mechanism realizes the automatic and accurate operation of the recharge test by controlling the variable frequency water pump B21, the electric valve B26 and the electric valve C22 and receiving the feedback data of the water meter B23, the water level sensor 32 and the pressure sensor 33.
The utility model discloses groundwater recharge test automatic system's working process includes following several kinds of operating modes:
water pumping test: and opening the electronic control mechanism, selecting a water pumping mode, and setting test parameters. The test parameters comprise the times of pumping and depth reduction, the water level depth reduction of each time of depth reduction, the continuous pumping time after reaching the depth reduction and keeping stable, the time interval of monitoring the pumping quantity and the dynamic water level, and whether to carry out the water level restoration monitoring, if so, the time interval of the water level restoration monitoring is continuously set; after the parameters are set, the starting button is pressed, and the equipment starts to work automatically. Firstly, opening an electric valve A12 and a variable frequency water pump A11 to start pumping water, monitoring the underground water level by a water level sensor 31 according to a set time interval, monitoring the water pumping amount by a water meter A13 according to a set time interval, automatically adjusting the electric valve A12 and the variable frequency water pump A11 by an electronic control mechanism to enable the water level to reach the set first depth reduction, adjusting an electric valve A12 and a variable frequency water pump A11 when the water level reaches the first depth reduction to reduce the water pumping amount to enable the water level to reach stability, continuously pumping water for the set time, increasing the water pumping amount to enable the water level to reach the second depth reduction and the third depth reduction, and repeating the steps. After the water pumping is finished, the electric valve A12 and the variable-frequency water pump A11 are closed, and the water level recovery monitoring is carried out according to the setting. And monitoring data can be derived.
The monitoring time can be set to a standard water pumping test mode, and can also be set to a user-defined mode. The monitoring time of the standard pumping test mode is the same as that of the existing pumping test mode, namely the monitoring is carried out once every 1 st, 2 nd, 3 rd, 4 th, 5 th, 10 th, 15 th, 20 th, 30 th, 40 th, 50 th and 60 th min after the pumping is started, and the monitoring is carried out once every 30min after the water level is stable until the pumping and the depth reduction are finished; and monitoring at 1, 3, 5, 10, 15 and 30min after stopping pumping water, and if the water level is not stable, continuing monitoring at intervals of 30min until the water level is stable. The monitoring time of the self-defined mode can freely set the monitoring time interval.
And (3) recharging test: and opening the electronic control mechanism, selecting a recharge mode, and setting test parameters. The test parameters include whether a water source of a water storage device is used, the total recharge water quantity, the recharge water flow in unit time, the warning water level (the maximum rise height of the underground water level), the recharge water quantity and the time interval of dynamic water level monitoring. After the parameters are set, the starting button is pressed, and the equipment starts to work automatically. Firstly, a variable-frequency water pump B21 is turned on, whether water exists in a water storage device 17 is detected through a pressure sensor 33, if water exists, an electric valve B26 is turned on, water in the water storage device 17 is used for recharging, if no water exists, an electric valve C22 is turned on, external water sources are used for recharging, the variable-frequency water pump B21, the electric valve B26 or the electric valve C22 are adjusted according to the recharging water flow rate setting in unit time, recharging is started, a water level sensor 31 monitors the underground water level according to a set time interval, when the water level exceeds an alarm water level, the variable-frequency water pump B21, the electric valve B26 or the electric valve C22 are turned off, recharging is stopped, and is prompted on an electronic control mechanism display, a water meter B23 monitors the recharging water amount according to the set time interval, and when the recharging water amount reaches the total recharging amount, the variable-frequency water pump B21, the electric valve B26 or the electric valve C22 is turned off, and recharging is stopped. And monitoring data can be derived.
Lifting: and (3) opening the electronic control mechanism, selecting a pumping mode, setting the water pumping amount in unit time, pressing a start button, and opening the electric valve A12 and the variable-frequency water pump A11 by the electronic control mechanism to start pumping water. After the silt-free pumping is observed through the silt filter 16, the equipment is closed and the pumping is stopped.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (6)
1. An automatic system for a pumping and recharging test of underground water is characterized by comprising a pumping test mechanism, a recharging test mechanism and an electronic control mechanism,
the pumping test mechanism comprises a variable frequency water pump A, an electric valve A, a water meter A, a sediment filter and a water storage device which are sequentially connected through a water pipe, wherein the variable frequency water pump A is arranged under water in the recharge well;
the recharge testing mechanism comprises an external water source, an electric valve C and a variable frequency water pump B which are sequentially connected through a water pipe, the water pipe connected with the water outlet of the variable frequency water pump B extends into the recharge well, and a water meter B is arranged on the water pipe connected with the water outlet of the variable frequency water pump B; the recharging test mechanism also comprises a branch water pipe connected with the water storage device, one end of the branch water pipe is connected with an outlet of the water storage device, the other end of the branch water pipe is connected with an inlet of the variable frequency water pump B, and an electric valve B is arranged on the branch water pipe;
the electronic control mechanism comprises a controller, and a water level sensor and a pressure sensor which are connected with the controller, wherein the water level sensor is arranged on the outer wall of a water inlet pipe of the variable-frequency water pump A, the pressure sensor is arranged on a branch water pipe connected with a water outlet of the water receiver, and the controller controls the opening and closing operation of the variable-frequency water pump A, the electric valve A, the variable-frequency water pump B, the electric valve B and the electric valve C by acquiring the information of the water level sensor, the pressure sensor, the water meter A and the water meter B.
2. The automatic system for groundwater pumping recharge test according to claim 1, wherein a manual valve a is disposed on a water pipe of the pumping test mechanism, a manual valve C is disposed on a water pipe of the recharge test mechanism, and a manual valve B is disposed on a branch water pipe of the recharge test mechanism.
3. The automatic system for groundwater pumping recharge test according to claim 2, wherein the water pipe of the pumping test mechanism is further provided with a check valve A, the water pipe of the recharge test mechanism is further provided with a check valve C, and the branch water pipe of the recharge test mechanism is further provided with a check valve B.
4. An automated groundwater pump recharge test system according to claim 1, wherein the reservoir is provided with a drain at a bottom and an overflow at a top.
5. An automated groundwater pump recharge test system as claimed in claim 4, wherein the reservoir employs a water tower of linear low density polyethylene material.
6. An automated groundwater pump recharge test system according to claim 5, wherein the water reservoir comprises a plurality of the water towers in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022830515.8U CN213872230U (en) | 2020-11-30 | 2020-11-30 | Automatic system for groundwater pumping recharge test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022830515.8U CN213872230U (en) | 2020-11-30 | 2020-11-30 | Automatic system for groundwater pumping recharge test |
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| CN213872230U true CN213872230U (en) | 2021-08-03 |
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| CN202022830515.8U Active CN213872230U (en) | 2020-11-30 | 2020-11-30 | Automatic system for groundwater pumping recharge test |
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