CN112012274A - Automatic pressure stabilizing system for recharging - Google Patents
Automatic pressure stabilizing system for recharging Download PDFInfo
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- CN112012274A CN112012274A CN201910499925.8A CN201910499925A CN112012274A CN 112012274 A CN112012274 A CN 112012274A CN 201910499925 A CN201910499925 A CN 201910499925A CN 112012274 A CN112012274 A CN 112012274A
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- pressure
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- recharge
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/32—Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river
- E03B3/34—Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river of underground water
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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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- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses an automatic pressure stabilizing system for recharge, which comprises a water pump, an air bag type pressure tank, a recharge water diversion subsystem and a control subsystem, wherein the air bag type pressure tank is connected with the water pump and supplies water for the water pump; the recharge water shunt subsystem is connected with the water pump and the air bag type pressure tank to form a passage, and is also connected with the control subsystem, and the control subsystem receives pressure and flow data from the pressure monitoring element, adjusts the rotating speed of the water pump and the flow of the recharge water shunt subsystem, and combines the pressure adjustment of the air bag type pressure tank to stabilize the water pressure.
Description
Technical Field
The invention relates to the field of geological exploration and construction, in particular to a recharge automatic pressure stabilizing system.
Background
The groundwater recharge technology is an important measure for saving groundwater resources and ensuring that the surrounding geological environment is not influenced by foundation pit precipitation in foundation pit engineering. The recharging technology is to recharge the underground water pumped by the foundation pit to the underground, so that not only can water resources be saved, but also the safety of buildings near the construction area can be protected. At present, pressure recharging is generally carried out by adopting a water pump pressurization mode to improve the recharging rate of a single well, but in the pressure recharging process, due to the action of a water hammer and the like, the pressure change in a recharging system is overlarge due to the impact effect of a water hammer, so that the water pump is frequently switched on and off, the recharging system is in failure, and even the service life is reduced; meanwhile, the pressure of the wellhead is too high, and the structure of the recharge well can be damaged.
In the prior published literature, a comprehensive water resource recycling system for foundation pit excavation backfill tamping and dewatering recharge and a construction method are disclosed, the foundation pit excavation well point dewatering and backfill water injection sand tamping are combined, water pumping and recharging are carried out, stable water supply to water sand can be carried out by arranging a main water storage tank and a secondary water storage tank, however, the inventor thinks that the scheme of the comprehensive water resource recycling system cannot solve the water supply problem under special conditions, when the impact action of a water hammer is too high, the recharging method is not suitable, and water is inevitably buffered to a certain degree when stable water supply is realized.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic recharge pressure stabilizing system which can buffer water pressure change, ensure the stability of the water pressure of the recharge system, reduce frequent switching of a water pump, reduce the fault rate of recharge equipment and prolong the service life of the recharge system.
The invention aims to provide an automatic recharge pressure stabilizing system.
The second objective of the present invention is to provide a recharge automatic pressure stabilizing method based on pressure value determination of a recharge automatic pressure stabilizing system.
The third objective of the present invention is to provide a recharge automatic voltage stabilization method based on the judgment of the recharge flow rate value of the recharge automatic voltage stabilization system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a kind of recharge automatic pressure stabilizing system, including water pump, gasbag type pressure tank, recharge water and shunt subsystem and control subsystem, the gasbag type pressure tank connects the water pump and can play the impact role of the buffer water hammer, there are pressure monitoring elements in the gasbag type pressure tank, water pump and pressure monitoring element are connected with control subsystem;
the recharge water shunt subsystem is connected with the water pump and the air bag type pressure tank to form a passage, and is also connected with the control subsystem, and the control subsystem receives pressure and flow data from the pressure monitoring element, adjusts the rotating speed of the water pump and the flow of the recharge water shunt subsystem, and combines the pressure adjustment of the air bag type pressure tank to stabilize the water pressure.
Furthermore, the recharge water distribution subsystem comprises a recharge pipeline, a recharge well and a recharge diverter, the recharge diverter is installed on the recharge pipeline, the recharge pipeline is communicated with the air bag type pressure tank and the recharge well, and the air bag type pressure tank is communicated with the recharge well through the recharge pipeline and the recharge diverter to provide a recharge water source with stable pressure;
the recharge diverter is connected with the control subsystem, and the recharge diverter can be controlled by the control subsystem to adjust the flow of the recharge pipeline and further adjust the flow of water.
Further, the recharging flow divider comprises at least one electromagnetic valve and at least one electromagnetic flow meter, and the electromagnetic flow meter is installed in the electromagnetic valve; and the electromagnetic valve and the electromagnetic flowmeter are both connected with the control subsystem.
Furthermore, the recharging well adopts bridge type filter pipes for recharging, a steel plate is connected to the mouth of the recharging well for plugging, an exhaust port is formed in the top of the steel plate, a second pressure sensor is installed on the exhaust port, and the second pressure sensor is connected with the control subsystem.
Further, the air bag type pressure tank comprises an air bag and a pressure tank body, and the air bag is fixedly connected with the pressure tank body; gas is filled between the air bag and the pressure tank body, and the gas is compressed when the water pressure in the air bag is too high so as to buffer the pressure change.
Further, the pressure monitoring element is a first pressure sensor, the first pressure sensor is installed on the upper portion of the inner side of the pressure tank body, and pressure signals are transmitted to the control subsystem through the first pressure sensor.
Further, the pressure tank body and the air bag are provided with a water inlet and a water outlet, the water inlet of the pressure tank body is communicated with the water inlet of the air bag, and the water outlet of the pressure tank body is communicated with the water outlet of the air bag and is used for respectively supplying water to enter and exit; the lower part of the pressure tank body is also provided with a water outlet through which sediments and the like in the tank body can be discharged.
Furthermore, the water pump is connected with the control subsystem through a variable frequency controller.
Secondly, the invention discloses a recharge automatic pressure stabilizing method based on pressure value judgment of a recharge automatic pressure stabilizing system, which comprises the following steps:
the control subsystem presets a pressure value p in the pressure tank body;
the control subsystem starts the water pump by controlling the variable frequency controller; the variable frequency controller controls the rotation speed of the water pump to be changed from slow to fast, so that the soft start of the water pump is realized, and the water hammer impact effect is avoided, and the recharge system is prevented from being damaged;
the pressure of the recharge water is gradually increased after entering the air bag type pressure tank, the gas in the air bag is compressed, and the change of water pressure is buffered through the compression and the relaxation of the air bag, so that the pressure stabilizing effect is achieved; meanwhile, a pressure sensor on the pressure tank body feeds the pressure in the pressure tank body back to the control subsystem in time;
if the pressure p' in the pressure tank body is smaller than the pressure value p preset by the control subsystem, the control subsystem transmits an instruction to the variable frequency controller to increase the rotating speed of the water pump;
if the pressure p' in the pressure tank body is greater than the pressure value p preset in advance by the control subsystem, the control subsystem opens the electromagnetic valve on the recharge shunt to the maximum;
and if the pressure p' in the tank body is still greater than the pressure value p preset in advance by the system, reducing the rotating speed of the water pump through the variable frequency controller to reduce the pressure in the tank body.
The invention also discloses a recharge automatic pressure stabilizing method based on the recharge flow value judgment of the recharge automatic pressure stabilizing system, which comprises the following steps:
setting a recharging flow u at the outlet of the recharging flow divider in a control subsystem in advance;
if the recharging flow u ' is smaller than the preset recharging flow u, comparing the pressure p ' in the tank body of the pressure tank with a preset recharging pressure value p, and if the pressure p ' in the tank body is larger than the preset pressure value p, opening the electromagnetic valve on the recharging flow divider to the maximum;
if the pressure p' in the tank body is greater than the preset pressure value p, the rotating speed of the water pump is increased through the control subsystem, and the recharging pressure is increased through increasing the rotating speed of the water pump so as to increase the recharging flow;
and if the recharging flow u' is larger than the preset recharging flow u, reducing the recharging rotating speed of the water pump through the control subsystem, and reducing the recharging flow.
The operation principle of the invention is as follows:
in the invention, the control subsystem is used for controlling the water pump and the recharge water diversion subsystem, the air bag type pressure tank plays a role in buffering water hammer impact and can feed back a control result together with the recharge water diversion subsystem in time, so that the control of the control subsystem on the water pump and the recharge water diversion subsystem tends to an ideal state, and the water pressure or the flow rate finally poured into a stratum approaches to the ideal state.
Compared with the prior art, the invention has the following beneficial effects:
1) the air bag type pressure tank is used, so that the stability of the recharging pressure can be realized, the frequent start and stop of a water pump are avoided, the damage of the water hammer effect on the recharging equipment is reduced, and the service life of the recharging equipment is prolonged;
2) the invention is provided with 2 pressure sensors, can monitor the recharge pressure and the recharge flow in real time, does not need manual monitoring, saves the labor cost and simultaneously avoids the structure of the recharge well from being damaged.
3) The invention uses a loop with the effect similar to negative feedback, can realize the automatic regulation of the recharging flow according to the recharging pressure or the regulation of the recharging pressure according to the recharging flow, and realize the stable recharging under a certain pressure or the stable recharging under a certain flow.
4) The invention also provides a pressure sensor at the wellhead, which can avoid the overlarge pressure of the wellhead and the structural damage of the recharge well.
5) According to the method disclosed by the invention, the rotating speed of the water pump can be adjusted according to the recharging flow and the recharging pressure, or the water pump can be dormant, so that the purpose of saving electricity is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a system configuration diagram of embodiment 1.
In the figure, 100, a stratum or a foundation pit needing to extract underground water, 1, a water pump, 2, an air bag type pressure tank, 21, a water inlet, 22, a water outlet, 23, an air bag, 24, nitrogen, 25, a pressure tank body, 26, a first pressure sensor, 3, a recharge water diversion subsystem, 31, an electromagnetic valve, 32, an electromagnetic flow meter, 4, a recharge well, 41, a seamless steel pipe, 42, a bridge type water filtering pipe, 43, concrete, 44, a clay ball, 45, gravel and 5, and a control subsystem.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background art, in the pressure recharging process, due to the action of the switch of the water pump and the like, the pressure change in the recharging system is too large due to the impact action of the water hammer, so that the water pump is frequently switched on and off, the recharging system is in failure, and even the service life is reduced; meanwhile, the pressure of the wellhead is too high, and the structure of the recharge well can be damaged. The invention provides an automatic recharge pressure stabilizing system which can buffer water pressure change, ensure the stability of the water pressure of a recharge system, reduce frequent switching of a water pump, reduce the fault rate of recharge equipment and prolong the service life of the recharge system. The invention will now be further described with reference to the accompanying drawings and detailed description.
Example 1
A kind of recharge automatic pressure stabilizing system, including the water pump 1 used for making the water pressurized and connecting and can play the gasbag type pressure tank 2 which buffers the impact of water hammer, there are pressure monitoring components in the gasbag type pressure tank 2, the water pump 1 and pressure monitoring component connect the control subsystem 5;
the water return system is connected with the water pump 1 and the air bag type pressure tank 2 to form a passage, and is also connected with the control subsystem 5, and the control subsystem 5 can adjust the flow of the water pump 1 and the air bag type pressure tank 2 through the water return system;
and after the control subsystem receives pressure and flow data from the pressure monitoring element, the rotating speed of the water pump 1 and the reinjection water flow distribution subsystem are adjusted, and the water pressure is adjusted and stabilized through the air bag type pressure tank 2.
In this embodiment, the control subsystem 5 is used to control the water pump 1 and the recharge water diversion subsystem 3, and the air bag type pressure tank 2 plays a role in buffering water hammer impact and can feed back a control result together with the recharge water diversion subsystem 3 in time, so that the control of the control subsystem 5 on the water pump 1 and the recharge water diversion subsystem 3 tends to an ideal state, and further the water pressure or flow rate finally poured into the stratum approaches to the ideal state.
In this embodiment, the recharge water diversion subsystem 3 includes a recharge pipeline, an electromagnetic valve 31, an electromagnetic flowmeter 32 and a recharge diverter, the recharge pipeline is communicated with the water pump 1, the airbag type pressure tank 2 and the recharge well 4 to recharge the groundwater extracted from the stratum or the foundation pit 100 in which the groundwater needs to be extracted into the recharge well 4, and the recharge diverter is installed on the recharge pipeline;
the recharge diverter is connected with the control subsystem 5, and the recharge diverter can be controlled by the control subsystem 5 to adjust the flow of the recharge pipeline, so that the flow of water is adjusted.
In more detail, the recharge shunt comprises a solenoid valve 31 and an electromagnetic flow meter 32, the electromagnetic flow meter 32 is installed in the solenoid valve 31; the electromagnetic valve 31 and the electromagnetic flowmeter 32 are both connected with the control subsystem 5; the electromagnetic flowmeter 32 is capable of measuring the flow rate of water passing through the solenoid valve 31 when the water passes through the solenoid valve 31, and transmitting the measured information to the control subsystem 5.
In this embodiment, the control subsystem 5 is a PLC, which has high stability and is easy to program, and is suitable for engineering personnel to perform secondary development.
Further, the recharging well 4 adopts a bridge type water filtering pipe 42 for recharging, a steel plate is connected to the mouth of the recharging well 4 for plugging, an exhaust port is formed in the top of the steel plate, a second pressure sensor is installed on the exhaust port, and the second pressure sensor is connected with the control subsystem 5.
In more detail, as described in the background, the wellhead pressure is too high, which may also lead to structural damage to the recharge well 4, and therefore the structure of the wellhead needs to be effectively configured to ensure that the recharge well 4 is not damaged. In this embodiment, the second pressure sensor is used to monitor the pressure in the well. Furthermore, in the embodiment, the position of the upper part of the well structure within 5-10 meters from the wellhead is supported by the well wall through a seamless steel pipe 41; the upper portion of the well structure is 2 meters away from a well mouth, the well wall is filled with concrete 43 for strength reinforcement, the well wall within the length range of the seamless steel pipe 41 is filled with clay balls 44, the well wall within the length range of the bridge type water filtering pipe 42 is filled with gravel, the well mouth of the recharge well 4 is connected with a steel plate in a flange mode for plugging, and an air outlet and a pressure sensor are installed on the steel plate.
In more detail, the airbag type pressure tank 2 comprises an airbag 23 and a pressure tank body 25, and the airbag 23 is fixedly connected with the pressure tank body 25; the air bag 23 and the pressure tank body 25 are filled with gas, the gas filled in the embodiment is nitrogen, and the gas is compressed when the water pressure in the tank body is too high so as to buffer the pressure change.
The pressure monitoring element is a first pressure sensor 26, the first pressure sensor 26 is arranged at the upper part of the inner side of the pressure tank body 25, and the pressure in the tank body transmits a pressure signal to the control subsystem 5 through the first pressure sensor 26.
The pressure tank body 25 and the air bag 23 are provided with a water inlet 21 and a water outlet 22, the water inlet 21 of the pressure tank body 25 is communicated with the water inlet 21 of the air bag 23, and the water outlet 22 of the pressure tank body 25 is communicated with the water outlet 22 of the air bag 23 for respectively supplying water; the lower part of the pressure tank body 25 is also provided with a water outlet through which sediments and the like in the pressure tank body can be discharged.
Further, the water pump 1 is connected with a control subsystem 5 through a variable frequency controller (not shown in the figure).
In this embodiment, the flow rate of the water pump 1 can be selected from 50m to 200m3The head can be 50m (pressure is 0.5 MPa).
Example 2
A recharge automatic pressure stabilizing method based on pressure value judgment of a recharge automatic pressure stabilizing system comprises the following steps:
the control subsystem 5 presets a pressure value p in the pressure tank body 25;
the control subsystem 5 starts the water pump 1 by controlling the variable frequency controller; the variable frequency controller controls the rotating speed of the water pump 1 to be changed from slow to fast, so that the soft start of the water pump 1 is realized, and the water hammer impact effect is avoided, and the recharge system is prevented from being damaged;
the pressure of the recharge water is gradually increased after entering the air bag type pressure tank 2, the gas in the air bag 23 is compressed, and the change of the water pressure is buffered through the compression and relaxation of the air bag 23, so that the pressure stabilizing effect is achieved; meanwhile, the pressure sensor on the pressure tank body 25 feeds the pressure in the pressure tank body 25 back to the control subsystem 5 in time;
if the pressure p' in the pressure tank body 25 is smaller than the pressure value p preset by the control subsystem 5, the control subsystem 5 transmits an instruction to the variable frequency controller to increase the rotating speed of the water pump 1;
if the pressure p' in the pressure tank body 25 is greater than the pressure value p preset in advance by the control subsystem 5, the control subsystem 5 opens the electromagnetic valve 31 on the recharge diverter to the maximum;
if the pressure p' in the pressure tank body is still larger than the pressure value p preset in advance by the system, the rotating speed of the water pump 1 is reduced through the variable frequency controller to reduce the pressure in the tank body.
Example 3
A recharge automatic voltage stabilization method based on the judgment of a recharge flow value of a recharge automatic voltage stabilization system comprises the following steps:
setting a recharging flow u at the outlet of the recharging flow divider in advance in a control subsystem 5;
if the recharging flow u ' is smaller than the preset recharging flow u, comparing the pressure p ' in the pressure tank body 25 with a preset recharging pressure value p, and if the pressure p ' in the tank body is larger than the preset pressure value p, opening the electromagnetic valve 31 on the recharging flow divider to the maximum;
if the pressure p' in the tank body is still smaller than the preset pressure value p, the rotating speed of the water pump 1 is increased through the control subsystem 5, and the recharging pressure is increased by increasing the rotating speed of the water pump 1 so as to increase the recharging flow;
if the recharging flow u' is larger than the preset recharging flow u, the recharging rotating speed of the water pump 1 is reduced through the control subsystem 5, and the recharging flow is reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A recharge automatic pressure stabilizing system is characterized by comprising a water pump, an air bag type pressure tank, a recharge water flow dividing subsystem and a control subsystem, wherein the air bag type pressure tank is connected with the water pump and supplies water for the water pump;
the recharge water shunt subsystem is connected with the water pump and the air bag type pressure tank to form a passage, and is also connected with the control subsystem, and the control subsystem receives pressure and flow data from the pressure monitoring element, adjusts the rotating speed of the water pump and the flow of the recharge water shunt subsystem, and combines the pressure adjustment of the air bag type pressure tank to stabilize the water pressure.
2. The system of claim 1, wherein the recharging water diversion subsystem comprises a recharging pipeline, a recharging well and a recharging diverter, the recharging diverter is mounted on the recharging pipeline, the recharging pipeline is communicated with the air bag type pressure tank and the recharging well, and the air bag type pressure tank is communicated with the recharging well through the recharging pipeline and the recharging diverter to achieve the purpose of stabilizing recharging;
the recharge diverter is connected with the control subsystem, and the recharge diverter can be controlled by the control subsystem to adjust the flow of the recharge pipeline and further adjust the flow of water.
3. The recharge auto-stabilization system of claim 2, wherein the recharge diverter includes at least one solenoid valve and at least one electromagnetic flow meter mounted within the solenoid valve; and the electromagnetic valve and the electromagnetic flowmeter are both connected with the control subsystem.
4. The automatic pressure stabilizing system for recharging of claim 2, wherein the recharging well is recharged by a bridge type strainer, a steel plate is connected to the top of the recharging well for plugging, an exhaust port is formed in the top of the steel plate, and a second pressure sensor is mounted on the exhaust port and connected with the control subsystem.
5. The automatic recharge pressure stabilizing system according to claim 1, wherein the air bag type pressure tank comprises an air bag and a pressure tank body, and the air bag is fixedly connected with the pressure tank body; gas is filled between the air bag and the pressure tank body, and the gas is compressed when the water pressure in the tank body is overlarge so as to buffer the pressure change.
6. The automatic recharge pressure stabilizing system according to claim 5, wherein said pressure monitoring element is a first pressure sensor mounted in the upper portion of the inside of said pressure tank, the pressure in said tank transmitting a pressure signal to said control subsystem via said first pressure sensor.
7. The automatic pressure stabilizing system for recharging of claim 5, wherein the pressure tank body and the air bag are provided with a water inlet and a water outlet, the water inlet of the pressure tank body is communicated with the water inlet of the air bag, and the water outlet of the pressure tank body is communicated with the water outlet of the air bag for water to enter and exit respectively; the lower part of the pressure tank body is also provided with a water outlet through which sediments and the like in the tank body can be discharged.
8. The automatic recharge voltage stabilization system of claim 1, wherein the water pump is connected to the control subsystem through a variable frequency controller.
9. The automatic pressure stabilizing method for the recharge of any one of claims 1 to 8, comprising the following steps:
the control subsystem presets a pressure value p in the pressure tank body;
the control subsystem starts the water pump by controlling the variable frequency controller; the variable frequency controller controls the rotation speed of the water pump to be changed from slow to fast, so that the soft start of the water pump is realized, and the water hammer impact effect is avoided, and the recharge system is prevented from being damaged;
the pressure of the recharge water is gradually increased after entering the air bag type pressure tank, the gas in the air bag is compressed, and the change of water pressure is buffered through the compression and the relaxation of the air bag, so that the pressure stabilizing effect is achieved; meanwhile, a pressure sensor on the pressure tank body feeds the pressure in the pressure tank body back to the control subsystem in time;
if the pressure p' in the pressure tank body is smaller than the pressure value p preset by the control subsystem, the control subsystem transmits an instruction to the variable frequency controller to increase the rotating speed of the water pump;
if the pressure p' in the pressure tank body is greater than the pressure value p preset in advance by the control subsystem, the control subsystem opens the electromagnetic valve on the recharge shunt to the maximum;
and if the pressure p' in the tank body is still greater than the pressure value p preset in advance by the system, reducing the rotating speed of the water pump through the variable frequency controller to reduce the pressure in the tank body.
10. The automatic pressure stabilizing method for the recharge of any one of claims 1 to 8, comprising the following steps:
setting a recharging flow u at the outlet of the recharging flow divider in a control subsystem in advance;
if the recharging flow u ' is smaller than the preset recharging flow u, comparing the pressure p ' in the tank body of the pressure tank with a preset recharging pressure value p, and if the pressure p ' in the tank body is larger than the preset pressure value p, opening the electromagnetic valve on the recharging flow divider to the maximum;
if the pressure p' in the tank body is still smaller than the preset pressure value p, the rotating speed of the water pump is increased through the control subsystem, and the recharging pressure is increased through increasing the rotating speed of the water pump so as to increase the recharging flow;
and if the recharging flow u' is larger than the preset recharging flow u, reducing the recharging rotating speed of the water pump through the control subsystem, and reducing the recharging flow.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910499925.8A CN112012274A (en) | 2019-05-31 | 2019-05-31 | Automatic pressure stabilizing system for recharging |
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| CN201910499925.8A CN112012274A (en) | 2019-05-31 | 2019-05-31 | Automatic pressure stabilizing system for recharging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753447A (en) * | 2022-04-24 | 2022-07-15 | 河南省地质矿产勘查开发局第二地质环境调查院 | Residual water recharging well construction and recharging method based on shallow geothermal utilization |
-
2019
- 2019-05-31 CN CN201910499925.8A patent/CN112012274A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753447A (en) * | 2022-04-24 | 2022-07-15 | 河南省地质矿产勘查开发局第二地质环境调查院 | Residual water recharging well construction and recharging method based on shallow geothermal utilization |
| CN114753447B (en) * | 2022-04-24 | 2024-03-22 | 河南省地质局生态环境地质服务中心 | Residual water recharging well construction and recharging method based on shallow geothermal utilization |
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