CN115478587A - Constant-pressure water supply system for coal mine safety production - Google Patents
Constant-pressure water supply system for coal mine safety production Download PDFInfo
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- CN115478587A CN115478587A CN202211345818.8A CN202211345818A CN115478587A CN 115478587 A CN115478587 A CN 115478587A CN 202211345818 A CN202211345818 A CN 202211345818A CN 115478587 A CN115478587 A CN 115478587A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000003245 coal Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000004069 differentiation Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Mining & Mineral Resources (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a constant-pressure water supply system for coal mine safety production, which comprises a given value and a controller, wherein the output end of the given value is electrically connected with a PID (proportion integration differentiation) regulator, the PID regulator comprises a proportion regulator, an integral regulator, a differential regulator, a measuring element and an executing mechanism, the output end of the PID regulator is electrically connected with a frequency converter, the output end of the frequency converter is electrically connected with constant-pressure water supply, and the output end of the constant-pressure water supply is electrically connected with a water outlet valve. By the PID regulation, the controller, the frequency converter, the pressure sensor and the protection regulation, the problems that the water supply quantity is insufficient when the water is used at the peak, the water supply pressure does not reach the standard, the waste of water resources is easily caused when the water is used at the low peak, the supply relation can be regulated and controlled only by the local full-pressure starting and stopping of the water pump, the labor intensity of workers is high, the energy consumption is high, and the use requirements of people cannot be met are solved.
Description
Technical Field
The invention relates to the technical field of constant-pressure water supply, in particular to a constant-pressure water supply system for coal mine safety production.
Background
The coal mine is an area where people mine coal resources in a coal-rich mining area, and is generally divided into a mineworker coal mine and an opencast coal mine, when a coal seam is far away from the ground surface, coal is generally excavated to an underground excavation roadway, the mineworker coal mine is the mineworker coal mine, when the coal seam is very close to the ground surface, the direct stripping of a surface soil layer is generally adopted to excavate the coal, the opencast coal mine is the opencast coal mine, most coal mines in China belong to the mineworker coal mine, the coal mine range comprises the large area of the ground underground and related facilities, the coal mine is a reasonable space excavated by people when the coal seam rich in the coal is excavated, the coal mine generally comprises a roadway, a well cave, an excavation face and the like, and the coal is the most main solid fuel and is one of combustible organic rocks.
The water supply system is an important component of coal mine production, but the water supply quantity is insufficient when the water is used at the peak in the existing coal mine production water supply mode, the water supply pressure does not reach the standard, the waste of water resources is easily caused when the water is used at the low peak, the supply relation can be regulated and controlled only by starting and stopping the water pump at the local full pressure, the labor intensity of workers is high, the energy consumption of the workers is high, the use requirements of people cannot be met, and therefore, the constant-pressure water supply system for coal mine safety production is provided.
Disclosure of Invention
The invention aims to provide a constant-pressure water supply system for coal mine safety production, which has the advantages of reducing working intensity and energy consumption and efficiently supplying water, and solves the problems that the water supply quantity is insufficient when the peak water is used, the water supply pressure does not reach the standard, water resources are easily wasted when the peak water is used, the supply relation can be regulated and controlled only by starting and stopping the water pump at the local full pressure, the labor intensity of workers is high, the energy consumption is high, and the use requirements of people cannot be met in the existing coal mine production water supply mode.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a coal mine safety production's constant voltage water supply system, includes setting value and controller, the output electric connection of setting value has PID to adjust, PID adjusts including proportional control, integral control, differential regulation, measuring element and actuating mechanism, the output electric connection that PID adjusted has the converter, converter output electric connection has the constant voltage to supply water, the output electric connection that the constant voltage supplied water has the outlet valve, the output electric connection of outlet valve has pressure sensor, pressure sensor's the output and the input electric connection of setting value, the output of controller and the input electric connection that PID adjusted, the output electric connection of controller has the protection to adjust, and the output of protection regulation and the input electric connection that the constant voltage supplied water.
Preferably, the output electric connection of proportional control and integral control and differential control has the second pilot lamp, the output of second pilot lamp and actuating mechanism's input electric connection, measuring element's input and actuating mechanism's output electric connection, measuring element's output electric connection has first pilot lamp, the output of first pilot lamp respectively with proportional control and integral control and differential control's input electric connection.
Compared with the prior art, the invention has the following beneficial effects:
1. the aim of reducing personnel and increasing efficiency is basically achieved, workers do not need to go to an underground pump room, remote control and monitoring of equipment can be achieved in a workshop and a dispatching center, and the working intensity of the workers is reduced.
2. The high efficiency of a water supply system is effectively guaranteed, and the frequent problems of insufficient water pressure and unsmooth water supply are basically avoided.
3. The intelligent control, reasonable allotment water resource, the effectual waste of avoiding the water resource has practiced thrift the energy consumption simultaneously, accords with intelligent construction standard's basic requirement.
Drawings
FIG. 1 is a diagram of a system control architecture according to the present invention;
FIG. 2 is a PID tuning chart according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a constant pressure water supply system for coal mine safety production comprises a given value and a controller, wherein the output end of the given value is electrically connected with a PID regulator, the PID regulator comprises a proportion regulator, an integral regulator, a differential regulator, a measuring element and an executing mechanism, the output end of the PID regulator is electrically connected with a frequency converter, the output end of the frequency converter is electrically connected with constant pressure water supply, the output end of the constant pressure water supply is electrically connected with a water outlet valve, the output end of the water outlet valve is electrically connected with a pressure sensor, the output end of the pressure sensor is electrically connected with the input end of the given value, the output end of the controller is electrically connected with the input end of the PID regulator, the output end of the controller is electrically connected with a protection regulator, and the output end of the protection regulator is electrically connected with the input end of the constant pressure water supply.
The output end of the proportional control, the integral control and the differential control is electrically connected with a second indicator light, the output end of the second indicator light is electrically connected with the input end of the actuating mechanism, the input end of the measuring element is electrically connected with the output end of the actuating mechanism, the output end of the measuring element is electrically connected with a first indicator light, and the output end of the first indicator light is electrically connected with the input ends of the proportional control, the integral control and the differential control respectively.
When in use, after the system is electrified through an external power socket, then the full-automatic constant-pressure water supply system adopts an intrinsic safety type programmable controller, pressure setting is carried out according to the maximum water supply quantity in the network, the pressure sensor arranged on a pipeline is used for measuring the pressure change and converting the pressure value into the corresponding current quantity, the current quantity is input into an analog quantity module of the controller, the range conversion is carried out in a program, the frequency converter output frequency is controlled through PID calculation, the variable frequency is used for controlling the running rotating speed of the water pump, when the pressure of the network is lower than a set value, the feedback quantity is compared with the set value, the output frequency is improved after PID calculation, the water pumping quantity of the water pump is increased, the water pipe pressure is kept constant, otherwise, the analysis method is similar, the fluctuation of the actual pressure in the vicinity of the set pressure is ensured, wherein the PID algorithm of the control parameter is the proportional, integral and differential algorithm commonly used in engineering, the controller comprises a PID control model, the water pressure adjusting process is smooth, the water pump has two modes of a constant pressure mode and a frequency conversion mode in the operation process, the pressure of a pipe network is tracked in real time to adjust the flow, the water pump is automatically started according to the water supply demand, the water pump is ensured to operate under the condition of high efficiency all the time, the energy consumption is reduced, the energy-saving purpose is achieved, the classical PID control logic is adopted, the influence of disturbance can be quickly overcome by adopting a proportional control rule, the integral can eliminate the residual difference on the basis of the proportion, the differential has the advancing function, the differential participates in control for a control channel with capacity lag, and the dynamic performance index of the system is improved under the condition that the differential item is properly set, the stability of system operation is improved, the oscillation process of adjustment process.
Introduction to function
The system adopts the Bocheng frequency converter to adapt to the existing pump room, hardware design and installation are automatically completed, the SIEMEMS logic controller and an integrated human-computer interaction interface are adopted, signals such as a field instrument, a sensor and an electric valve actuating mechanism are collected, various parameters of the operation of the system are monitored, the operation of the frequency converter is adjusted through a PID algorithm, the opening of a valve is controlled, the pressure of a pipe network is tracked in real time to adjust the flow, the water pump is automatically started according to the water supply demand, the water pump operates under the efficient condition all the time, the energy consumption is reduced, and the purpose of energy conservation is achieved.
1. Real-time dynamic monitoring of process flow
The system provides an interactive human-computer interface, realizes monitoring of the state of an exhaust valve, the opening of a water outlet valve, the running state of a water pump, flow, pressure, running mode information and the like in a water supply process, realizes centralized remote control of equipment, and comprehensively grasps the working condition of the equipment.
2. Multiple process modes
The system provides automatic, manual, overhaul, the operating mode that the power frequency combines according to personnel's in service behavior, and the automatic condition can set up different operating pressure and carry out automatically regulated, and manual mode can manual intervention adjust different frequencies and supply water the operation, and the maintenance mode has effectually guaranteed personnel's the safe condition during the maintenance, and the power frequency mode can still maintain the normal operating of system under the circumstances of frequency conversion trouble.
3. Rich parameter editing
The system comprises the settings of upper and lower limit regulation and control of pressure value setting, pressure protection, water flow protection, valve protection and the like, on one hand, the system is ensured to operate in a reasonable working condition environment, the stability of the system is ensured, and on the other hand, the harm caused by misoperation of personnel is avoided; if the water flow is protected, when the liquid level of the water pool is insufficient, the water pump is operated to be started, and the water pump can be automatically stopped when the insufficient flow is detected; the communication protection sets communication heartbeat, and executes an interrupt program when the communication is interrupted accidentally, so that system interference caused by external factors is avoided.
4. Complete alarm information
The system is provided with an alarm information window, so that related information can be looked up in real time, information acquisition and gathering of the sensor, the water pump, the frequency converter and communication can be realized, personnel can alarm in real time to know the reason of shutdown, trouble hazards can be checked in time, and related alarm records can be inquired.
5. Data archiving query
The system establishes an archiving mechanism for important parameters, an operator can inquire the variation trend of data, select different time periods to inquire the maximum value, the minimum value, the average value and corresponding time points of the data, the system counts the running state of the equipment, and the graphical analysis is carried out on the starting efficiency of the equipment for the reference of the operator.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a coal mine safety production's constant pressure water supply system, includes setting value and controller, its characterized in that: the output electric connection of setting value has PID to adjust, PID adjusts including proportional control, integral control, differential regulation, measuring element and actuating mechanism, the output electric connection that PID adjusted has the converter, converter output electric connection has the constant voltage water supply, the output electric connection that the constant voltage supplied water has the outlet valve, the output electric connection of outlet valve has pressure sensor, pressure sensor's the output and the input electric connection of setting value, the output of controller and the input electric connection that PID adjusted, the output electric connection of controller has the protection to adjust, and the output of protection regulation and the input electric connection that the constant voltage supplied water.
2. The constant-pressure water supply system for coal mine safety production according to the claim, characterized in that: the output electric connection that proportional control and integral were adjusted and differential were adjusted has the second pilot lamp, the output of second pilot lamp and actuating mechanism's input electric connection, measuring element's input and actuating mechanism's output electric connection, measuring element's output electric connection has first pilot lamp, the output of first pilot lamp respectively with proportional control and integral control and differential control's input electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211345818.8A CN115478587A (en) | 2022-10-31 | 2022-10-31 | Constant-pressure water supply system for coal mine safety production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211345818.8A CN115478587A (en) | 2022-10-31 | 2022-10-31 | Constant-pressure water supply system for coal mine safety production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115478587A true CN115478587A (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211345818.8A Pending CN115478587A (en) | 2022-10-31 | 2022-10-31 | Constant-pressure water supply system for coal mine safety production |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07229178A (en) * | 1994-02-21 | 1995-08-29 | Matsushita Electric Works Ltd | Feed water control device |
| CN101050636A (en) * | 2007-05-22 | 2007-10-10 | 麦金耿 | Digital constant pressure water supply and energy saving device |
| CN201594195U (en) * | 2009-11-18 | 2010-09-29 | 上海建筑材料集团水泥有限公司 | Constant-pressure water supply control device |
| CN201972194U (en) * | 2010-12-15 | 2011-09-14 | 广州星辰热能科技有限公司 | Intelligent frequency-variable constant-pressure water supply system |
| CN103529695A (en) * | 2013-10-08 | 2014-01-22 | 郭景礼 | Variable-frequency speed regulation water supply system based on day parting intelligent PID (proportion integration differentiation) regulator |
| CN205276388U (en) * | 2015-12-15 | 2016-06-01 | 广州市珠峰电气有限公司 | Variable -frequency and constant -pressure water supply system |
| CN108374448A (en) * | 2018-05-08 | 2018-08-07 | 伟泰科技（无锡）有限公司 | A kind of industrial regeneration water constant pressure water supply system |
-
2022
- 2022-10-31 CN CN202211345818.8A patent/CN115478587A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07229178A (en) * | 1994-02-21 | 1995-08-29 | Matsushita Electric Works Ltd | Feed water control device |
| CN101050636A (en) * | 2007-05-22 | 2007-10-10 | 麦金耿 | Digital constant pressure water supply and energy saving device |
| CN201594195U (en) * | 2009-11-18 | 2010-09-29 | 上海建筑材料集团水泥有限公司 | Constant-pressure water supply control device |
| CN201972194U (en) * | 2010-12-15 | 2011-09-14 | 广州星辰热能科技有限公司 | Intelligent frequency-variable constant-pressure water supply system |
| CN103529695A (en) * | 2013-10-08 | 2014-01-22 | 郭景礼 | Variable-frequency speed regulation water supply system based on day parting intelligent PID (proportion integration differentiation) regulator |
| CN205276388U (en) * | 2015-12-15 | 2016-06-01 | 广州市珠峰电气有限公司 | Variable -frequency and constant -pressure water supply system |
| CN108374448A (en) * | 2018-05-08 | 2018-08-07 | 伟泰科技（无锡）有限公司 | A kind of industrial regeneration water constant pressure water supply system |
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