CN110924473B - Composite water pressure monitoring and water pipe online maintenance system and use method thereof - Google Patents
Composite water pressure monitoring and water pipe online maintenance system and use method thereof Download PDFInfo
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- CN110924473B CN110924473B CN201911267388.0A CN201911267388A CN110924473B CN 110924473 B CN110924473 B CN 110924473B CN 201911267388 A CN201911267388 A CN 201911267388A CN 110924473 B CN110924473 B CN 110924473B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 243
- 238000012423 maintenance Methods 0.000 title claims abstract description 216
- 238000012544 monitoring process Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 62
- 230000006378 damage Effects 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000013024 troubleshooting Methods 0.000 claims 1
- 239000008400 supply water Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000008399 tap water Substances 0.000 description 6
- 235000020679 tap water Nutrition 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 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
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- 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
- E03B7/071—Arrangement of safety devices in domestic pipe systems, e.g. devices for automatic shut-off
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Abstract
The invention discloses a composite water pressure monitoring and water pipe online maintenance system and a use method thereof.A water inlet and a water outlet of a water pipe are connected with a first online maintenance device and a second online maintenance device which have the same structure to form a water pipe pipeline; the first online maintenance device comprises a T-shaped three-way pipe joint, and gate valves are arranged at two ends of the three-way pipe joint; the other end of the three-way pipe joint is connected with an online maintenance valve, and the online maintenance valve is provided with a connector B, a connector D and a connector E; the online maintenance device also comprises an online maintenance pipeline, wherein an interface H of the online maintenance pipeline is used for connecting an interface E of the first online maintenance device; the other two interfaces G are used for connecting the interface D and the interface B of the second online maintenance device. When the water pipe is damaged, water of the first online maintenance device can flow into the second online maintenance device through the online maintenance pipeline to supply water to residents, and the temporary water cut-off time of urban residents is shortened.
Description
Technical Field
The invention relates to the technical field of water supply equipment, in particular to a composite water pressure monitoring and water pipe online maintenance system and a using method thereof.
Background
The tap water system comprises a water pump, a water pipe, a pressure gauge, a water valve and the like. The water pump is positioned at the head end of the tap water system and supplies water pressure to the tap water system, and the tap water is introduced into a community or an industrial and mining enterprise by the water pipe. The pressure gauge is connected between the water pipes and used for monitoring whether the water pressure in the water pipes is normal or not.
Tap water system is the main source of urban water supply, in order not to influence the city appearance in city, city's water pipe is buried underground mostly, and the maintenance is lost in the long run, and the pipeline often can break the damage because of corroding, because the water pipe is buried underground again, often is difficult to discover, in the building work in city process, often can damage city's water pipe because of external force barbaric construction, lead to the running water to leak, make city people's water supply interrupt, influence the production and the life of vast citizen.
The prior art has the defects that in the prior art, when a water pipe of a tap water system is broken, a maintenance worker is required to repair or replace the damaged pipeline, a large amount of time is required to be consumed in the repair or replacement process, urban residents face the dilemma of temporary water cut-off, and inconvenience is brought to production and life of the urban residents.
Disclosure of Invention
In view of at least one defect of the prior art, an object of the present invention is to provide a composite water pressure monitoring and water pipe online maintenance system and a method for using the same, in which a first online maintenance device and a second online maintenance device are respectively disposed at two ends of a water pipe, and when the water pipe is damaged, water in the first online maintenance device can flow into the second online maintenance device through an online maintenance pipeline to supply water to residents, so as to shorten the temporary water cut-off time of urban residents and reduce the inconvenience of urban residents due to water cut-off.
In order to achieve the purpose, the invention adopts the following technical scheme: a composite water pressure monitoring and water pipe online maintenance system comprises a water pipe and is characterized in that a water inlet on the right side of the water pipe is connected with a first online maintenance device, a water outlet on the left side of the water pipe is connected with a second online maintenance device, and the first online maintenance device and the second online maintenance device are identical in structure; the water pipe, the first online maintenance device and the second online maintenance device form a water pipe pipeline;
the first online maintenance device comprises a T-shaped three-way pipe joint, and gate valves are arranged at the left end and the right end of the three-way pipe joint; the other end of the three-way pipe joint is connected with an online maintenance valve, the online maintenance valve comprises a valve body, a sliding valve cavity is arranged in the valve body, and a sliding valve is arranged in the sliding valve cavity in a sliding mode along the left-right direction;
the left end of the slide valve is connected with the left wall of the slide valve cavity through a first return spring, and the right end of the slide valve is connected with the right wall of the slide valve cavity through a second return spring; the slide valve divides the slide valve cavity into a left cavity and a right cavity; the left chamber is connected with a three-way pipe joint through a joint A; the right chamber is provided with a port B;
a port C is further arranged on one side, close to the three-way pipe joint, of the valve body, the port C is communicated with the three-way pipe joint, a port D and a port E which correspond to the port C are further arranged on one side, far away from the three-way pipe joint, of the valve body, and a switching channel F is arranged in the middle of the sliding valve; when the slide valve is in the original position, the slide valve seals the port D and the port E, when the slide valve moves rightwards, the switching channel F communicates the port C with the port E, and when the slide valve moves leftwards, the switching channel F communicates the port C with the port D;
the device comprises a first online maintenance device and an online maintenance pipeline, wherein the first online maintenance device comprises a first interface and a second interface, the first interface is used for connecting a first online maintenance device, and the second interface is used for connecting a second online maintenance device; the two interfaces G are respectively used for connecting an interface D and an interface B of the second online maintenance device.
The interface H is detachably connected with the interface E of the first online maintenance device, and the two interfaces G are detachably connected with the interface D and the interface B of the second online maintenance device.
Through the structural arrangement, the slide valve divides the slide valve cavity of the online maintenance valve into a left cavity and a right cavity; the left chamber is connected with a three-way pipe joint through a joint A;
when the water pipe is not damaged, the pressure in the three-way pipe joint is normal, the slide valve is in the original position, the switching channel F is positioned between the interface D and the interface E, and the interface D and the interface E are sealed by the slide valve;
when the water pipe is corroded and broken due to long-term overhaul or is damaged by external force of engineering machinery such as an excavator and the like, the gate valves at the two ends of the water pipe can be closed, and after the gate valves at the two ends of the water pipe are closed, the water pressure in the tee pipe joint of the first online maintenance device can be increased due to the fact that water is blocked;
the water pressure in the three-way pipe joint enters the left chamber through the interface A, and is superposed with the thrust of the first return spring and then is greater than the pressure of the second return spring, so that the slide valve moves rightwards;
the interface C is communicated with the interface E through the switching channel F, water in the tee pipe joint flows out through the interface C and the switching channel F and flows into the online maintenance pipeline through the interface E, one interface G of the online maintenance pipeline is connected with the interface B of the second online maintenance device and flows into the right cavity of the second online maintenance device, and after the water is superposed with the pressure of the second return spring, the water is larger than the thrust of the first return spring, so that when a slide valve of the second online maintenance device moves leftwards, the interface C is communicated with the interface D through the switching channel F of the second online maintenance device; water flows into the water outlet through the online maintenance pipeline, the interface D of the second online maintenance device, the interface C of the second online maintenance device and the tee pipe joint, the pressure is reduced, water is continuously supplied to residents, the temporary water cut-off time of urban residents is shortened, and inconvenience caused by water cut-off of the urban residents is reduced.
When the water pipe is repaired, the gate valves at the two ends of the water pipe can be opened, and when the gate valves at the two ends of the water pipe are opened, the water outlet is smooth, so that the water pressure in the tee pipe joint of the first online maintenance device is reduced and recovered to be normal; the water pressure in the three-way pipe joint enters the left chamber through the interface A and is less than the thrust of the second return spring after being superposed with the thrust of the first return spring;
the slide valve moves leftwards to return to the original position, the switching channel F is positioned between the port D and the port E, and the slide valve seals the port D and the port E.
Wherein the on-line maintenance pipeline can be buried underground together with the water pipe, preferably, buried under the water pipe, so as not to be easily damaged by the excavator. Or temporarily not connected with the first online maintenance device and the second online maintenance device, and when the water pipe is damaged, the first online maintenance device and the second online maintenance device are connected through an online maintenance pipeline made of soft rubber.
The interface D is provided with a valve D, the interface E is provided with a valve E, and the interface B is provided with a valve B.
When the interface D of the first online maintenance device and the second online maintenance device is not used, the valve D can be closed, when the interface E is not used, the valve E can be closed, and when the interface B is not used, the valve B can be closed to prevent leakage.
The diameter D1 of the online maintenance pipeline is Y multiplied by D2/k;
wherein Y is a proportionality coefficient, and Y is 0.5-0.9; k is the diameter variation coefficient;
wherein D2 is the diameter of the water pipe, when D2 is less than D3, D3 is preferably 30mm, k is 1; d3 is a first diameter threshold;
when D2 is D3 or more,
generally, for convenience in use and cost saving, the diameter D1 of the online maintenance pipeline is smaller than the diameter D2 of a water pipe, wherein Y is a proportionality coefficient, and Y is 0.5-0.9; the diameter D2 of the water pipe is increased according to the requirement, when D2 is greater than or equal to 30mm, the diameter D1 of the on-line maintenance pipeline is decreased according to the increase of D2 of the water pipe.
When D2 is equal to or greater than D4, D4 is preferably 100mm, and D4 is a second diameter threshold;
the diameter D11 of the online maintenance pipeline (4) is Y x (D2/k) x h;
wherein h is a pressure relationship coefficient;
when the rated water pressure P1 of the water pipe is less than or equal to 1 standard atmospheric pressure P0, h is 1;
when the rated water pressure P1 of the water pipe is greater than 1 standard atmospheric pressure P0,
through the structural arrangement, when the D2 is larger than or equal to 100mm, and the rated water pressure P1 of the water pipe is larger than 1 standard atmospheric pressure P0, the diameter D11 of the online maintenance pipeline is increased according to the proportion h along with the increase of the rated water pressure P1, so that the pressure resistance of the online maintenance pipeline is improved, and the pipe diameters are the inner diameters of the pipes.
The three-way pipe joint is connected with a pressure detection device, the pressure detection device is provided with a pressure sensor, the pressure sensor is used for acquiring a pressure signal of the three-way pipe joint, the pressure sensor is connected with a microprocessor through an analog-digital converter, and the microprocessor is connected with a digital display.
Through the structure, the pressure sensor acquires the pressure signal of the three-way pipe joint, the pressure signal is converted into a digital signal through the analog-to-digital converter and sent to the microprocessor, and the microprocessor displays the water pressure signal through the digital display.
The microprocessor is also connected with an Internet of things module, the microprocessor is remotely connected with a monitoring computer through the Internet of things module, and the gate valves are all electromagnetic valves; the gate valve is connected with a monitoring computer through a microprocessor.
Through the structural arrangement, the microprocessor sends a water pressure signal to the monitoring computer through the Internet of things module, so that a manager can conveniently monitor the water pressure signal remotely, and the gate valves are all electromagnetic valves; the gate valve is connected with a monitoring computer through a microprocessor. When the water pipe was damaged, managers obtained water pressure signal through the control computer, can prevent that the water pipe from continuing to leak through the gate valve of control computer remote control closing.
The water pipe is provided with an external force damage distance detection device, the external force damage distance detection device comprises a detection electric wire arranged along the length direction of the water pipe, the detection electric wire is fixedly connected with the outer wall of the water pipe, the detection electric wire is a resistance wire wrapped with an insulating coating, one end, far away from the first online maintenance device, of the detection electric wire is grounded, one end, close to the first online maintenance device, of the detection electric wire is connected with one end of a divider resistor R11, the other end of the divider resistor R11 is connected with an alternating current power supply, the common end of the detection electric wire and the divider resistor R11 is also connected with one input end of a bridge rectifier circuit, and; a filter circuit is arranged between the positive output end and the negative output end of the bridge rectifier circuit, the positive output end of the bridge rectifier circuit is connected with the input end of the voltage follower, and the output end of the voltage follower and the negative output end of the bridge rectifier circuit are connected with the microprocessor through the analog-to-digital converter.
Through above-mentioned circuit setting, to burying underground water pipe, when the water pipe was destroyed by external force such as excavator, generally can damage the detection electric wire, the destruction department of water pipe can leak, and the insulating skin of detection electric wire is destroyed, can follow destroyed position ground connection, leads to detecting the ground resistance of electric wire to diminish.
The initial resistance and the length data of the detection wire are input into the microprocessor, the microprocessor acquires the voltage of the detection wire close to one end of the first online maintenance device, the voltage of the detection wire is combined with the voltage of an alternating current power supply, the voltage ratio of the detection wire and a divider resistor R11 can be acquired, the resistance after the detection wire is broken can be calculated according to the voltage ratio and the resistance of the divider resistor R11, the resistance after the detection wire is broken can be calculated, the length after the detection wire is broken can be calculated according to the resistance before and after the detection wire is broken, the resistance ratio is equal to the length ratio, the approximate position of the water pipe damaged by external force can be determined according to the length after the detection wire is broken, the position is displayed on.
The utility model provides a compound water pressure monitoring and water pipe on-line maintenance system's application method which the key lies in: the method comprises the following steps:
step A: the monitoring computer acquires pressure signals detected by the first online maintenance device and the second online maintenance device;
and B: c, the monitoring computer judges whether the pressure signal is smaller than a set pressure threshold and exceeds a set first time threshold, if so, the step C is carried out; otherwise, displaying the pressure signal and returning to the step A;
through the method setting of the step B, when the pressure signal is smaller than the set pressure threshold and exceeds the set first time threshold, the water pipe can be judged to be broken, the step C is carried out, and the first time threshold is set to eliminate the instantaneous water pressure fluctuation interference; otherwise, judging that the water pipe is normal, displaying a normal pressure signal, and returning to the step A;
and C: the monitoring computer closes the gate valves in sequence from one end of the water outlet pipe;
step D: c, the monitoring computer judges that the pressure signal of the front pressure detection device is still smaller than the set pressure threshold value after the gate valve is closed, and the step C is returned; otherwise, judging that the water pipe connected behind the gate valve has a fault, and sending fault alarm information; and displaying the position of the failed water pipe; turning to step E;
if the pressure signal of the front pressure detection device is still smaller than the set pressure threshold value after the gate valve is closed, the damage is positioned in front of the gate valve, and the step C is returned to continue closing the front gate valve; if the pressure signal of the pressure detection device in front is greater than or equal to the set pressure threshold value after the gate valve is closed, the situation that the damage is positioned behind the gate valve is indicated, the fault of the water pipe connected behind the gate valve is judged, and fault alarm information is sent out; and the position of the water pipe with the fault is displayed through a monitoring computer;
step E: the monitoring computer controls the gate valves on the front side and the rear side of the out-of-fault water pipe to be kept in a closed state, and controls the rest gate valves to be opened;
the water pipe can be cut off only by closing the gate valves on the front side and the rear side of the failed water pipe, so that water leakage is prevented, and maintenance is facilitated for maintenance workers.
The pressure of a three-way pipe joint of the first online maintenance device rises, a slide valve of the first online maintenance device is pushed to move rightwards, and a switching channel F of the first online maintenance device communicates a port C with a port E;
the water of the three-way pipe joint of the first online maintenance device flows out through the joint E and flows into the joint B of the second online maintenance device through the online maintenance pipeline, the sliding valve of the second online maintenance device is pushed to move leftwards, the joint D of the second online maintenance device is communicated with the joint C, and the water flows into the three-way pipe joint of the second online maintenance device; maintenance personnel maintain or replace the water pipe;
through the arrangement of the method, water in the tee pipe joint of the first online maintenance device flows into the tee pipe joint of the second online maintenance device through the online maintenance pipeline, and water is continuously supplied to residents.
Step F: the monitoring computer obtains a fault removing instruction of a maintenance worker, and the microprocessor controls the gate valves on the front side and the rear side of the water pipe to be opened; the pressure in the tee pipe joints of the first online maintenance device and the second online maintenance device is recovered, and a slide valve of the first online maintenance device moves leftwards to close a connector E of the first online maintenance device; returning to the original position;
the spool valve of the second in-line service device moves to the right, closing the port D of the second in-line service device and returning to the home position.
After the maintenance is finished, the gate valves on the front side and the rear side of the water pipe are controlled to be opened by a monitoring computer; the water in the first online maintenance device directly flows into a three-way pipe joint of the second online maintenance device through a water pipe; the water is directly supplied to residents.
The pressure in the tee pipe joint of the first online maintenance device is reduced and recovered, and a slide valve of the first online maintenance device moves leftwards to seal a connector E of the first online maintenance device; returning to the original position;
the right chamber pressure of the second online maintenance device decreases and the slide valve gradually moves to the right, closing the interface D of the second online maintenance device and returning to the original position.
The invention has the remarkable effects that the invention provides the composite water pressure monitoring and water pipe online maintenance system and the use method thereof, the first online maintenance device and the second online maintenance device are respectively arranged at the two ends of the water pipe, when the water pipe is damaged, water of the first online maintenance device can flow into the second online maintenance device through the online maintenance pipeline to supply water to residents, the temporary water cut-off time of urban residents is shortened, and the inconvenience caused by water cut-off of the urban residents is reduced.
Drawings
FIG. 1 is a view showing the construction of a first embodiment of the present invention;
FIG. 2 is a structural view of a second embodiment of the present invention;
FIG. 3 is a structural view of a third embodiment of the present invention;
fig. 4 is a circuit block diagram of the present invention.
FIG. 5 is a circuit diagram of an analog to digital converter;
FIG. 6 is a circuit diagram of a microprocessor;
FIG. 7 is a circuit diagram of the solenoid valve;
FIG. 8 is a circuit diagram of an IOT module;
FIG. 9 is a circuit diagram of a digital display;
FIG. 10 is a flow chart of a method of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1-10, a composite water pressure monitoring and water pipe online maintenance system comprises a water pipe 1, a water inlet on the right side of the water pipe 1 is connected with a first online maintenance device 2, a water outlet on the left side of the water pipe 1 is connected with a second online maintenance device 3, and the first online maintenance device 2 and the second online maintenance device 3 have the same structure; the water pipe 1, the first online maintenance device 2 and the second online maintenance device 3 form a water pipe pipeline;
the first online maintenance device 2 comprises a T-shaped tee pipe joint 21, and gate valves 22 are arranged at the left end and the right end of the tee pipe joint 21; the gate valve 22 is an electromagnetic valve, the other end of the three-way pipe joint 21 is connected with an online maintenance valve 23, the online maintenance valve 23 comprises a valve body 231, a sliding valve cavity 232 is arranged in the valve body 231, and a sliding valve 233 is arranged in the sliding valve cavity 232 in a sliding mode along the left-right direction;
the left end of the spool valve 233 is connected to the left wall of the spool chamber 232 through a first return spring 234, and the right end of the spool valve 233 is connected to the right wall of the spool chamber 232 through a second return spring 235; the spool 233 divides the spool chamber 232 into a left chamber 2321 and a right chamber 2322; the left chamber 2321 is connected with the tee pipe joint 21 through a port A24; the right chamber 2322 is provided with port B25;
a port C26 is further arranged on one side of the valve body 231 close to the tee joint 21, a port C26 is communicated with the tee joint 21, a port D27 and a port E28 which correspond to the port C26 are further arranged on one side of the valve body 231 far away from the tee joint 21, and a switching channel F29 is arranged in the middle of the slide valve 233; when the spool 233 is in the home position, the spool 233 closes port C26, port D27, and port E28, when the spool 233 moves rightward, the shift passage F29 connects port C26 to port E28, and when the spool 233 moves leftward, the shift passage F29 connects port C26 to port D27;
the pipeline system further comprises an online maintenance pipeline 4, the left end of the online maintenance pipeline 4 is provided with two interfaces G42, the right end of the online maintenance pipeline 4 is provided with an interface H41, and the interface H41 is used for being connected with an interface E28 of the first online maintenance device 2; the two interfaces G42 are used to connect the interface D27 and the interface B25 of the second online maintenance device 3, respectively.
The water pipe pipelines formed by the water pipes 1, the first online maintenance device 2 and the second online maintenance device 3 can also be connected in series to form a long pipeline system for supplying water to a remote place.
Since the first online maintenance device 2 and the second online maintenance device 3 have the same structure, the second online maintenance device 3 of the previous water pipeline can be connected with the first online maintenance device 2 of the next water pipeline through the online maintenance pipeline 4.
With the above-described structural arrangement, the spool 233 divides the spool chamber 232 of the online maintenance valve 23 into the left and right chambers 2321 and 2322; the left chamber 2321 is connected with the tee pipe joint 21 through a port A24;
when the water pipe 1 is not damaged, the pressure in the tee joint 21 is normal, the slide valve 233 is in a home position, the switching channel F29 is positioned between the port D27 and the port E28, and the slide valve 233 seals the port D27 and the port E28;
when the water pipe 1 is corroded and broken due to long-term maintenance or is damaged by external force of engineering machinery such as an excavator, the gate valves 22 at the two ends of the water pipe 1 can be closed, and after the gate valves 22 at the two ends of the water pipe 1 are closed, water outlet is blocked, so that the water pressure in the three-way pipe joint 21 of the first online maintenance device 2 can be increased; in addition, due to the throttling effect of the online maintenance valve 23, the pressure will also rise;
the water pressure in the three-way pipe joint 21 enters the left chamber 2321 through the port A24, and after the water pressure is superposed with the thrust of the first return spring 234, the pressure is greater than the pressure of the second return spring 235, so that the spool valve 233 moves rightwards;
the switching channel F29 connects the port C26 with the port E28, water in the tee joint 21 flows out through the port C26 and the switching channel F29 and flows into the online maintenance pipeline 4 through the port E28, one port G42 of the online maintenance pipeline 4 is connected with the port B25 of the second online maintenance device 3 and flows into the right chamber 2322 of the second online maintenance device 3, after the pressure of the water is superposed with the pressure of the second return spring 235, the thrust of the pressure is greater than that of the first return spring 234, when the slide valve 233 of the second online maintenance device 3 moves to the left, the switching channel F29 of the second online maintenance device 3 connects the port C26 with the port D27; water flows into the water outlet through the online maintenance pipeline 4, the interface D27, the interface C26 and the three-way pipe joint 21 of the second online maintenance device 3, the pressure is reduced, water is continuously supplied to residents, the temporary water cut-off time of urban residents is shortened, and the inconvenience caused by water cut-off of the urban residents is reduced.
After the water pipe 1 is repaired, the gate valves 22 at the two ends of the water pipe 1 can be opened, and after the gate valves 22 at the two ends of the water pipe 1 are opened, the water pressure in the three-way pipe joint 21 of the first online maintenance device 2 is reduced and returns to normal due to smooth water outlet; the water pressure in the tee pipe joint 21 enters the left chamber 2321 through the interface A24, and is less than the thrust of the second return spring 235 after being superposed with the thrust of the first return spring 234;
the spool 233 moves back to the left, the shift passage F29 is between port D27 and port E28, and the spool 233 closes port D27 and port E28.
Wherein the on-line maintenance pipe 4 can be buried underground together with the water pipe 1, preferably, under the water pipe 1, so as not to be easily broken by an excavator. It is also possible to temporarily disconnect the first online maintenance device 2 and the second online maintenance device 3, and to connect the first online maintenance device 2 and the second online maintenance device 3 through an online maintenance pipe 4 made of soft rubber when the water pipe 1 is broken.
Interface D27 is provided with valve D, and interface E28 is provided with valve E, and interface B25 is provided with valve B.
The ports D27 of the first and second online maintenance devices 2 and 3 can close the valve D when not in use, the port E28 can close the valve E when not in use, and the port B25 can close the valve B when not in use to prevent leakage.
The diameter D1 of the online maintenance pipeline 4 is Y multiplied by D2/k;
wherein Y is a proportionality coefficient, and Y is 0.5-0.9; k is the diameter variation coefficient;
wherein D2 is the diameter of water pipe 1, when D2 is less than 30mm, k is 1;
when D2 is equal to or greater than 30mm,
generally, for convenience of use and cost saving, the diameter D1 of the online maintenance pipeline 4 is smaller than the diameter D2 of the water pipe 1, wherein Y is a proportionality coefficient, and Y is 0.5-0.9; the diameter D2 of the water pipe 1 is increased according to the requirement, when D2 is greater than or equal to 30mm, the diameter D1 of the online maintenance pipeline 4 is reduced according to the increase of the diameter D2 of the water pipe 1.
When D2 is equal to or greater than 100mm,
the diameter D11 of the online maintenance pipeline 4 is Y × (D2/k) × h;
wherein h is a pressure relationship coefficient;
when the rated water pressure P1 of the water pipe 1 is less than or equal to 1 standard atmospheric pressure P0, h is 1;
when the rated water pressure P1 of the water pipe 1 is greater than 1 standard atmospheric pressure P0,
through the structural arrangement, when the D2 is greater than or equal to 100mm and the rated water pressure P1 of the water pipe 1 is greater than 1 standard atmospheric pressure P0, the diameter D11 of the online maintenance pipeline 4 increases according to the proportion h as the rated water pressure P1 increases.
The three-way pipe joint 21 is connected with a pressure detection device 5, the pressure detection device 5 is provided with a pressure sensor 51, the pressure sensor 51 is used for acquiring a pressure signal of the three-way pipe joint 21, the pressure sensor 51 is connected with a microprocessor 53 through an analog-digital converter 52, and the microprocessor 53 is connected with a digital display 54.
Through the above structure, the pressure sensor 51 obtains the pressure signal of the three-way pipe joint 21, and the pressure signal is converted into a digital signal by the analog-to-digital converter 52 and sent to the microprocessor 53, and the microprocessor 53 displays the water pressure signal through the digital display 54.
The microprocessor 53 is also connected with an internet of things module 55, the microprocessor 53 is remotely connected with the monitoring computer 6 through the internet of things module 55, and the gate valves 22 are all electromagnetic valves; the gate valve 22 is connected to the monitoring computer 6 via a microprocessor 53.
Through the structural arrangement, the microprocessor 53 sends the water pressure signal to the monitoring computer 6 through the internet of things module 55, so that the remote monitoring of managers is facilitated, and the gate valves 22 are all electromagnetic valves; the gate valve 22 is connected to the monitoring computer 6 via a microprocessor 53. When water pipe 1 is damaged, managers obtain water pressure signal through monitoring computer 6, can close gate valve 22 through monitoring computer 6 remote control, prevent that water pipe 1 from continuing to leak.
The water pipe 1 is provided with an external force damage distance detection device 7, the external force damage distance detection device 7 comprises a detection electric wire 71 arranged along the length direction of the water pipe 1, the detection electric wire 71 is fixedly connected with the outer wall of the water pipe 1, the detection electric wire 71 is a resistance wire wrapped with an insulating coating, one end, far away from the first online maintenance device 2, of the detection electric wire 71 is grounded, one end, close to the first online maintenance device 2, of the detection electric wire 71 is connected with one end of a divider resistor R11, the other end of the divider resistor R11 is connected with an alternating current power supply, the common end of the detection electric wire 71 and the divider resistor R11 is also connected with one input end of a bridge rectifier circuit 72, and; a filter circuit is arranged between the positive output end and the negative output end of the bridge rectifier circuit 72, the positive output end of the bridge rectifier circuit 72 is connected with the input end of the voltage follower 73, and the output end of the voltage follower 73 and the negative output end of the bridge rectifier circuit 72 are connected with the microprocessor 53 through the analog-to-digital converter 52.
The external force damage distance detection device 7 includes a detection wire 71, a voltage dividing resistor R11, an ac power supply, a bridge rectifier circuit 72, a filter circuit, and a voltage follower 73.
With the above-described circuit arrangement, when the water pipe 1 buried underground is broken by external force such as an excavator, the detection wire 71 is usually damaged, water leaks from the broken portion of the water pipe 1, the insulation of the detection wire 71 is broken, and the ground resistance of the detection wire 71 is reduced by grounding from the broken portion.
The initial resistance and length data of the detection wire 71 are input into the microprocessor 53, the microprocessor 53 acquires the voltage of one end of the detection wire 71 close to the first online maintenance device 2, the voltage ratio of the detection wire 71 and the divider resistor R11 can be acquired by combining the voltage of the alternating current power supply, the resistance value of the detection wire 71 after being broken can be calculated according to the voltage ratio and the resistance value of the divider resistor R11, the length of the detection wire 71 after being broken can be calculated by detecting the resistance value ratio of the wire 71 before and after being broken, the resistance value ratio is equal to the length ratio, the approximate position of the water pipe 1 damaged by external force can be determined according to the length of the detection wire 71 after being broken, the approximate position is displayed on the monitoring computer 6, and maintenance personnel can.
The detection electric wires 71 are bound on the outer wall of the water pipe 1 through the binding belt 70, preferably three detection electric wires 71 are arranged on the upper wall, the left wall and the right wall of the water pipe 1 respectively, for the water pipe with larger size, a bucket of the excavator usually digs the upper wall, the left wall or the right wall of the water pipe 1, three external force damage distance detection devices 7 are arranged, and are connected with the microprocessor 53 through the analog-digital converter 52.
The utility model provides a compound water pressure monitoring and water pipe on-line maintenance system's application method which the key lies in: the method comprises the following steps:
step A: the monitoring computer 6 acquires pressure signals detected by the first online maintenance device 2 and the second online maintenance device 3;
and B: the monitoring computer 6 judges whether the pressure signal is smaller than a set pressure threshold and exceeds a set first time threshold, if so, the step C is carried out; otherwise, displaying the pressure signal and returning to the step A;
through the method setting of the step B, when the pressure signal is smaller than the set pressure threshold and exceeds the set first time threshold, the water pipe can be judged to be broken, the step C is carried out, and the first time threshold is set to eliminate the instantaneous water pressure fluctuation interference; otherwise, judging that the water pipe 1 is normal, displaying a normal pressure signal, and returning to the step A;
and C: the monitoring computer 6 closes the gate valves 22 in sequence from one end of the water outlet of the water pipeline;
step D: the monitoring computer 6 judges that the pressure signal of the front pressure detection device 5 is still smaller than the set pressure threshold value after the gate valve 22 is closed, and returns to the step C; otherwise, judging that the water pipe 1 connected behind the gate valve 22 has a fault, and sending fault alarm information; and displays the position of the failed water pipe 1; turning to step E;
if the pressure signal of the front pressure detection device 5 is still smaller than the set pressure threshold after the gate valve 22 is closed, which indicates that the damage is located in front of the gate valve 22, returning to step C to continue closing the front gate valve 22; if the pressure signal of the front pressure detection device 5 is greater than or equal to the set pressure threshold after the gate valve 22 is closed, the damage is indicated to be positioned behind the gate valve 22, the water pipe 1 connected behind the gate valve 22 is judged to be in fault, and fault alarm information is sent out; and the position of the water pipe 1 with the fault is displayed through the monitoring computer 6;
step E: the monitoring computer 6 controls the gate valves 22 on the front side and the rear side of the failed water pipe 1 to keep a closed state, and controls the rest gate valves 22 to be opened;
the water pipe 1 can be cut off only by closing the gate valves 22 at the front side and the rear side of the failed water pipe 1, so that water leakage is prevented, and maintenance is facilitated for maintenance workers.
The three-way connection 21 of the first online maintenance device 2 rises in pressure, the spool 233 of the first online maintenance device 2 moves to the right, and its switching channel F29 connects port C26 with port E28;
the water of the three-way pipe joint 21 of the first online maintenance device 2 flows out through the joint E28, flows into the joint B25 of the second online maintenance device 3 through the online maintenance pipeline 4, pushes the slide valve 233 of the second online maintenance device 3 to move leftwards, the joint D27 of the second online maintenance device 3 is communicated with the joint C26, and the water flows into the three-way pipe joint 21 of the second online maintenance device 3; the maintenance personnel maintain or replace the water pipe 1;
through the above-mentioned method, the water of the three-way pipe joint 21 of the first online maintenance device 2 flows into the three-way pipe joint 21 of the second online maintenance device 3 through the online maintenance pipeline 4, and the water supply for the residents is continued.
Step F: the monitoring computer 6 obtains a fault removing instruction of a maintenance worker, and controls the gate valves 22 on the front side and the rear side of the water pipe 1 to be opened through the microprocessor 53; the pressure in the three-way union 21 of the first online maintenance device 2 and the second online maintenance device 3 is restored, and the spool 233 of the first online maintenance device 2 moves to the left, closing the port E28 of the first online maintenance device 2; returning to the original position;
the spool 233 of the second online maintenance device 3 is gradually moved to the right, closing the port D27 of the second online maintenance device 3 and returning to the home position.
After the maintenance is finished, the gate valves 22 on the front side and the rear side of the water pipe 1 are controlled to be opened by the monitoring computer 6 by maintenance personnel; the water in the first online maintenance device 2 directly flows into a tee pipe joint 21 of the second online maintenance device 3 through a water pipe 1; the water is directly supplied to residents.
The pressure reduction in the tee fitting 21 of the first online maintenance device 2 is restored and the spool 233 of the first online maintenance device 2 moves to the left, closing the port E28 of the first online maintenance device 2; returning to the original position;
the right chamber 2322 of the second online maintenance device 3 is depressurized and the spool 233 moves to the right, closing the port D27 of the second online maintenance device 3 and returning to the home position.
The online maintenance pipeline 4 is preferably a rubber pipe made of rubber materials, and is convenient to use, large in expansion coefficient and strong in water pressure fluctuation resistance.
The online maintenance pipeline 4 can be detachably connected with the interface D27, the interface E28 and the interface B25.
Finally, it is noted that: the above-mentioned embodiments are only examples of the present invention, and it is a matter of course that those skilled in the art can make modifications and variations to the present invention, and it is considered that the present invention is protected by the modifications and variations if they are within the scope of the claims of the present invention and their equivalents.
Claims (7)
1. A composite water pressure monitoring and water pipe online maintenance system comprises a water pipe (1), and is characterized in that a water inlet on the right side of the water pipe (1) is connected with a first online maintenance device (2), a water outlet on the left side of the water pipe (1) is connected with a second online maintenance device (3), and the first online maintenance device (2) and the second online maintenance device (3) have the same structure; the water pipe (1), the first online maintenance device (2) and the second online maintenance device (3) form a water pipe pipeline;
the first online maintenance device (2) comprises a T-shaped tee pipe joint (21), and gate valves (22) are arranged at the left end and the right end of the tee pipe joint (21); the other end of the three-way pipe joint (21) is connected with an online maintenance valve (23), the online maintenance valve (23) comprises a valve body (231), a sliding valve cavity (232) is arranged in the valve body (231), and a sliding valve (233) is arranged in the sliding valve cavity (232) in a sliding mode along the left-right direction;
the left end of the slide valve (233) is connected with the left wall of the slide valve cavity (232) through a first return spring (234), and the right end of the slide valve (233) is connected with the right wall of the slide valve cavity (232) through a second return spring (235); the spool (233) divides the spool chamber (232) into a left chamber (2321) and a right chamber (2322); the left chamber (2321) is connected with a tee joint (21) through a port A (24); the right chamber (2322) is provided with a port B (25);
a port C (26) is further arranged on one side, close to the three-way pipe joint (21), of the valve body (231), the port C (26) is communicated with the three-way pipe joint (21), a port D (27) and a port E (28) which correspond to the port C (26) are further arranged on one side, far away from the three-way pipe joint (21), of the valve body (231), and a switching channel F (29) is arranged in the middle of the sliding valve (233); when the slide valve (233) is in the original position, the slide valve (233) seals the port D (27) and the port E (28), when the slide valve (233) moves rightwards, the switching passage F (29) communicates the port C (26) with the port E (28), when the slide valve (233) moves leftwards, the switching passage F (29) communicates the port C (26) with the port D (27);
the device is characterized by further comprising an online maintenance pipeline (4), wherein the left end of the online maintenance pipeline (4) is provided with two interfaces G (42), the right end of the online maintenance pipeline (4) is provided with an interface H (41), and the interface H (41) is used for being connected with an interface E (28) of the first online maintenance device (2); the two interfaces G (42) are respectively used for connecting an interface D (27) and an interface B (25) of the second online maintenance device (3).
2. The compound water pressure monitoring and water pipe online maintenance system according to claim 1, characterized in that: the connector D (27) is provided with a valve D, the connector E (28) is provided with a valve E, and the connector B (25) is provided with a valve B.
3. The compound water pressure monitoring and water pipe online maintenance system according to claim 1, characterized in that: the diameter D1 of the online maintenance pipeline (4) is Y multiplied by D2/k;
wherein Y is a proportionality coefficient, and Y is 0.5-0.9; k is the diameter variation coefficient;
wherein D2 is the diameter of the water pipe (1), when D2 is smaller than D3, k is 1; d3 is a first diameter threshold;
when D2 is D3 or more,
4. the compound water pressure monitoring and water pipe online maintenance system according to claim 1, characterized in that: the three-way pipe joint (21) is connected with a pressure detection device (5), the pressure detection device (5) is provided with a pressure sensor (51), the pressure sensor (51) is used for acquiring a pressure signal of the three-way pipe joint (21), the pressure sensor (51) is connected with a microprocessor (53) through an analog-to-digital converter (52), and the microprocessor (53) is connected with a digital display (54).
5. The compound water pressure monitoring and water pipe online maintenance system according to claim 4, characterized in that: the microprocessor (53) is also connected with an Internet of things module (55), the microprocessor (53) is remotely connected with a monitoring computer (6) through the Internet of things module (55), and the gate valves (22) are all electromagnetic valves; the gate valve (22) is connected with a monitoring computer (6) through a microprocessor (53).
6. The compound water pressure monitoring and water pipe online maintenance system according to claim 5, characterized in that: the water pipe (1) is provided with an external force damage distance detection device (7), the external force damage distance detection device (7) comprises a detection electric wire (71) arranged along the length direction of the water pipe (1), the detection electric wire (71) is fixedly connected with the outer wall of the water pipe (1), the detection electric wire (71) is a resistance wire wrapped with an insulating coating, one end, far away from the first online maintenance device (2), of the detection electric wire (71) is grounded, one end, close to the first online maintenance device (2), of the detection electric wire (71) is connected with one end of a divider resistor R11, the other end of the divider resistor R11 is connected with an alternating current power supply, the common end of the detection electric wire (71) and the divider resistor R11 is also connected with one input end of the bridge rectifier circuit (72), and the other input end of the bridge rectifier circuit (72; a filter circuit is arranged between the positive output end and the negative output end of the bridge rectifier circuit (72), the positive output end of the bridge rectifier circuit (72) is connected with the input end of a voltage follower (73), and the output end of the voltage follower (73) and the negative output end of the bridge rectifier circuit (72) are connected with a microprocessor (53) through an analog-to-digital converter (52).
7. The use method of the compound type water pressure monitoring and water pipe online maintenance system according to claim 5, characterized in that: the method comprises the following steps:
step A: the monitoring computer (6) acquires pressure signals detected by the first online maintenance device (2) and the second online maintenance device (3);
and B: c, the monitoring computer (6) judges whether the pressure signal is smaller than a set pressure threshold and exceeds a set first time threshold, and if so, the step C is carried out; otherwise, displaying the pressure signal and returning to the step A;
and C: the monitoring computer (6) closes the gate valves (22) in sequence from one end of the water outlet of the water pipe;
step D: c, the monitoring computer (6) judges that the pressure signal of the front pressure detection device (5) is still smaller than the set pressure threshold value after the gate valve (22) is closed, and the step C is returned; otherwise, judging that the water pipe (1) connected behind the gate valve (22) breaks down, and sending out failure alarm information; and displaying the position of the water pipe (1) with the fault; turning to step E;
step E: the monitoring computer (6) controls the gate valves (22) on the front side and the rear side of the failed water pipe (1) to be kept in a closed state, and controls the rest gate valves (22) to be opened;
the pressure of the tee joint (21) of the first online maintenance device (2) rises, the slide valve (233) of the first online maintenance device (2) moves rightwards, and the switching channel F (29) of the tee joint connects the port C (26) with the port E (28);
the water of the tee pipe joint (21) of the first online maintenance device (2) flows out through a joint E (28), flows into a joint B (25) of the second online maintenance device (3) through the online maintenance pipeline (4), pushes a slide valve (233) of the second online maintenance device (3) to move leftwards, a joint D (27) of the second online maintenance device (3) is communicated with a joint C (26), and the water flows into the tee pipe joint (21) of the second online maintenance device (3); the maintenance personnel maintain or replace the water pipe (1);
step F: the monitoring computer (6) acquires a troubleshooting instruction of a maintenance worker, and controls the gate valves (22) on the front side and the rear side of the water pipe (1) to be opened through the microprocessor (53); the pressure in the tee pipe joint (21) of the first online maintenance device (2) and the second online maintenance device (3) is recovered, and a slide valve (233) of the first online maintenance device (2) moves leftwards to seal a connector E (28) of the first online maintenance device (2); returning to the original position.
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| GB2276656A (en) * | 1993-04-02 | 1994-10-05 | Sage Passant Peter | Water supply isolation system |
| AUPN581595A0 (en) * | 1995-10-05 | 1995-10-26 | Water Corporation, The | Linestopper |
| DE102006037817B4 (en) * | 2006-08-12 | 2012-10-25 | Hanns Gervens | Method and apparatus for forming a leak bypass in fluid conveying tubing |
| CN104344036A (en) * | 2013-08-04 | 2015-02-11 | 陈金高 | Intelligent water protection system |
| CN103697332B (en) * | 2013-12-15 | 2016-08-24 | 中广核工程有限公司 | The online leak detection apparatus of buried aqueduct and detection method |
| CN104500980B (en) * | 2014-03-08 | 2019-05-31 | 陈金高 | Domestic running water protects system |
| CN204164675U (en) * | 2014-10-28 | 2015-02-18 | 乔琳 | People's air defense drainage pipe leakage preventer |
| CN205173743U (en) * | 2015-10-20 | 2016-04-20 | 新昌县沃洲自来水有限公司 | Water pipe that leak protection water was easily changed |
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