CN102352774A - Method for controlling efficiency of drainage system by using flow rate of pipelines - Google Patents
Method for controlling efficiency of drainage system by using flow rate of pipelines Download PDFInfo
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- CN102352774A CN102352774A CN2011102113640A CN201110211364A CN102352774A CN 102352774 A CN102352774 A CN 102352774A CN 2011102113640 A CN2011102113640 A CN 2011102113640A CN 201110211364 A CN201110211364 A CN 201110211364A CN 102352774 A CN102352774 A CN 102352774A
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Abstract
The invention discloses a method for controlling the efficiency of a drainage system by using flow rates of pipelines, which comprises the following steps of: 1, acquiring actual data when water pumps start in the drainage system, and calculating and finding pipeline row number required by the optimal drainage flow rate when the drainage system has the highest efficiency; 2, making control software by using the data acquired and calculated in the step 1 as basic data, and inputting into a singlechip; and 3, controlling electric valves of various pipelines to open and close and operating switches of various water pumps in a centralized mode by using the singlechip in the step 2. In an omnibearing data acquisition mode, the actual data when the water pumps run is acquired, the optimal flow rate when the drainage system has the highest efficiency under the condition that the water pumps work, and the pipeline row number required by the optimal flow rate are calculated according to the actual basic data; therefore, the water pump starting number, a pipeline path and the pipeline row number are scientifically determined by the measurement and calculation method.
Description
Technical field
The present invention relates to a kind of method with pipeline flow velocity control drainage system efficient.
Background technology
The configuration of each each Mine Drainage System of mine down-hole maximum flooding quantity size decision, the outfit of each mining area drainage system is all inequality, and differentiation control becomes inevitable, and improving drainage system pipe network efficient is the inevitable requirement of energy-saving and emission-reduction.According to satisfying the requirement that each horizontal geology water yield size of mine is equipped with drainage system, the ability to work of work water pump is required in 20h, to discharge the normal water yield of mine 24h.The ability of reserve pump should be not less than 70% of working water pump capacity.The work and the total capacity of stand by pump should be able to be discharged the maximum flooding quantity of mine 24h in 20h.The ability of maintenance water pump should be not less than 25% of working water pump capacity.Require that for discharge pipe line work and spare duct must be arranged.Therefore, mine is in design, and just the maximum flooding quantity that possibly occur according to this design mine is equipped with working barrel, stand by pump and maintenance pump, and also has been equipped with corresponding working line and spare duct.But in actual use, the utilization rate of drainage system most of time actual motion platform number and pipeline time number only accounts for 15～30% of the actual outfit of mine, and the idle ratio of its idle water pump and working line accounts for 70～85% of the actual outfit of mine.With certain New Built Mine is example, and its pump house has disposed 13 water pumps, just one day water yield of this level of mine can be discharged in 7 hours but only open a pump working in routine duties in the second half of the night.After mine construction was accomplished, the outfit of the type selecting of water pump, the type selecting of motor and pipeline was definite fully, and wherein motor is by the full load type selecting, so electric efficiency is definite basically when work.Under normal operation, when regulating pipe network efficient, can make pump efficiency, drainage system efficient be operated in optimal working point with optimum flow rate, when flow velocity during at optimum flow rate, pipe network efficient and pump efficiency can reach optimal value.Therefore, the drainage system existing resource that makes full use of mine is equipped with, and regulates the outfit of pipe network, reaches the optimum of system effectiveness, thereby realizes saving energy and reduce the cost, and technical meaning is great.
The drainage underground system adopts multistage centrifugal to crouch pump as main drain pump at present, and the operation of drainage system leans on manual work to accomplish with sense of responsibility by rule of thumb fully.The discharge pipe line flow velocity departs from the economic velocity scope more, and the platform number of operation and the aperture of gate valve all lack the effective technology means to be regulated and control, and causes most of water pump actual operating mode point to depart from efficient district.
Summary of the invention
Technical problem to be solved by this invention is how to regulate drainage system pipeline flow velocity to reach optimum flow rate, and then is implemented in drainage system pipe network efficient, pump efficiency and total drainage system efficient and reaches optimum value.
In order to solve the problems of the technologies described above; The present invention provides a kind of method with pipeline flow velocity control drainage system efficient; Should may further comprise the steps with the method for pipeline flow velocity control drainage system efficient: step 1: gather actual flow, flow velocity, power, voltage, electric current, mineral water density, water sucking mouth caliber and outfall caliber, suction lift, draining lift, suction head, draining height when water pump is opened in the drainage system, and calculate, required pipeline time number under the draining optimum flow rate when finding drainage system most effective; Step 2: the data that step 1 is gathered and calculated are made as a control software as basic data, are input in the single-chip microcomputer; Step 3: each the pipeline electric gate valve of single-chip microcomputer centralized Control with step 2 opens and closes and each water pump console switch.
Further, said step 1 is gathered the drainage system parameter and is comprised that the separate unit water pump opens the data when opening with many water pumps combinations, and calculates said separate unit water pump and open when making up unlatching with many water pumps required pipeline time number under the optimum flow rate.
Further again, the single-chip microcomputer of said step 2 is provided with a control panel, and each operating point selector button of water pump is set on this control panel.
Beneficial effect of the present invention is:
Real data when 1, technical scheme of the present invention adopts the comprehensive data acquisition mode to gather separate unit water pump or many water pump operations; Again according to above-mentioned practical basis data; Calculate under the separate unit pump working state or many water pump work in combination states under the pipeline time number of required usefulness during optimum flow rate and the optimum flow rate of drainage system when most effective; According to this measuring and calculating mode; Scientifically confirm the unlatching platform number and institute pipeline path of walking and time number of working barrel; The error of having avoided artificial experiential operating to bring --- during the causes water pump work, there is not the bigger problem of energy consumption that work is brought under optimum flow rate.
2, technical scheme of the present invention can be set solution one to one according to the concrete equipment configuration situation in each mining area, has very strong specific aim, and is actual workable; The present invention is provided with the mode of each operating point operation selector button, and workman's operation is more convenient, and disposable data setting is repeatedly used, and the stability of system is high.
3, technical scheme of the present invention is an open loop control scheme; Do not have feedback function, therefore, system constitutes simple; All little for transformation of existing mining area water pump drainage system or New Built Mine water pump drainage system construction input cost, the stability of system's operation is more superior compared with closed-loop control system.
4, technical scheme of the present invention is applied in drainage system and new the installation in the drainage system, can guarantee that the water pump pipe-line system operates in the optimum flow rate, reduces the drainage system energy consumption, and is obvious for energy-saving and cost-reducing meaning.
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail.
Description of drawings
Fig. 1 is the pump characteristic sketch map of the present invention with pipeline flow velocity control drainage system efficiency method.
The specific embodiment
The present invention provides a kind of method with pipeline flow velocity control drainage system efficient; Should may further comprise the steps with the method for pipeline flow velocity control drainage system efficient: step 1: gather separate unit water pump in the drainage system and open actual flow, flow velocity, power, voltage, electric current, mineral water density, water sucking mouth caliber and outfall caliber, suction lift, draining lift, suction head, draining height when opening with each water pump combination, and calculate, find the separate unit water pump open and the optimum flow rate of many water pumps combinations when drainage system is most effective when opening under required pipeline time number; Step 2: the data that step 1 is gathered and calculated are made as a control software as basic data, are input in the single-chip microcomputer; Said single-chip microcomputer is provided with a control panel, and each operating point selector button of water pump is set on this control panel.Step 3: each the pipeline electric gate valve of single-chip microcomputer centralized Control with step 2 opens and closes and each water pump console switch.
The concrete operations mode is as described below:
Confirm each working barrel in the drainage system; Stand by pump; Working line and spare duct are in normal condition; Open single pump successively; The sundstrand pump that possibly need unlatching in the work; Actual flow when measuring water pump drainage system each duty of living in; Flow velocity; Power; Voltage; Electric current; Mineral water density; Water sucking mouth caliber and outfall caliber; The suction lift; The draining lift; Suction head; The draining height; Required pipeline time number under the optimum flow rate when calculating the unlatching of separate unit water pump with each water pump combination unlatching according to above-mentioned basic data again; With the pipeline time number that calculated and pairing water pump and water pump combined information data creating is a simple control software; Should control software afterwards is input in the single-chip microcomputer; Single-chip microcomputer links to each other with the console switch of each water pump, also links to each other with the electromagnetic valve of each pipeline; Single-chip microcomputer is connected with an action button plate; On this action button plate selector button is arranged; Said selector button comprises the start-up operation button and each combination water pump startup action button of each separate unit water pump; This action button is carried out the operating in a key pattern; After promptly touching a certain button; Starting mode of pump, pipeline electromagnetic valve to should button be opened, and have no truck with water pump and electromagnetic valve are in and stop and closed condition; Therefore, this control system can realize quick response, and is easy to operate, has very strong practicality.Technique scheme is to use the preferred plan of mine in normal operating conditions; When unexpected incidents such as well occurring flooding when mine; No longer consider the problem of optimum flow rate, but open the used drainage system equipment that mine was equipped with, to guarantee the ageing and safety of rescue and relief work.
As shown in Figure 1, Q-H is that flow lift curve, Q-η are that flow efficiency curve, Hg are the Terrain Elevation in the water pump pipeline, and this numerical value is constant in specific mine; When drainage system started separate unit water pump, single time pipeline of operation, pump operating point was lift H
1, flow Q
1When this drainage system started above-mentioned separate unit water pump, many times pipelines of operation with technical scheme of the present invention, pump operating point was lift H
2, flow Q
2, it is big flow, low lift, optimum flow rate, drainage system efficiency optimization value; When this drainage system started separate unit water pump, operation pipeline time number and surpasses technical scheme of the present invention, pump operating point was lift H
3, flow Q
3H wherein
1=Hg+R Q
1 2, H
2=Hg+R ' Q
2 2, H
3=Hg+R " Q
3 2R, R ', R in above-mentioned three equalities " be the pipeline constant; Can find out that by Fig. 1 Q-η flow efficiency curve drainage system reaches optimum value in the system effectiveness of the operating point that technical scheme of the present invention is worked.
Protection scope of the present invention is not limited to the foregoing description, and every apparent technology distortion of doing according to know-why of the present invention all falls within protection scope of the present invention.
Claims (3)
1. the method with pipeline flow velocity control drainage system efficient is characterized in that, should may further comprise the steps with the method for pipeline flow velocity control drainage system efficient:
Step 1: gather actual flow, flow velocity, power, voltage, electric current, mineral water density, water sucking mouth caliber and outfall caliber, suction lift, draining lift, suction head, draining height when water pump is opened in the drainage system, and calculate, required pipeline time number under the draining optimum flow rate when finding drainage system most effective;
Step 2: the data that step 1 is gathered and calculated are made a control software as basic data, be input in the single-chip microcomputer;
Step 3: each the pipeline electric gate valve of single-chip microcomputer centralized Control with step 2 opens and closes and each water pump console switch.
2. according to the said method of claim 1 with pipeline flow velocity control drainage system efficient; It is characterized in that; Said step 1 is gathered the drainage system parameter and is comprised that the separate unit water pump opens the data when opening with each water pump combination, and calculates said separate unit water pump and open when opening with each water pump combination required pipeline time number under the optimum flow rate.
3. according to the said method of claim 2, it is characterized in that the single-chip microcomputer of said step 2 is provided with a control panel, each operating point selector button of water pump is set on this control panel with pipeline flow velocity control drainage system efficient.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102113640A CN102352774A (en) | 2011-07-27 | 2011-07-27 | Method for controlling efficiency of drainage system by using flow rate of pipelines |
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| CN2011102113640A CN102352774A (en) | 2011-07-27 | 2011-07-27 | Method for controlling efficiency of drainage system by using flow rate of pipelines |
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| CN102352774A true CN102352774A (en) | 2012-02-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677569A (en) * | 2018-12-29 | 2019-04-26 | 深圳市水务科技发展有限公司 | The control method of dock draining |
| CN111677549A (en) * | 2020-06-10 | 2020-09-18 | 开滦（集团）有限责任公司电信分公司 | Mine drainage control method, device, equipment and storage medium |
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| CN201460978U (en) * | 2009-06-09 | 2010-05-12 | 王红军 | Mine water drainage automatic device |
| CN201606271U (en) * | 2009-12-24 | 2010-10-13 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Fixed type water pump redundant starting signal automatic conversion device |
| CN101979838A (en) * | 2010-10-27 | 2011-02-23 | 锦州重型水泵有限公司 | System for forecasting mine water regime and intelligently controlling drainage |
| CN201884062U (en) * | 2010-07-30 | 2011-06-29 | 八达电气有限公司 | Mine intrinsic safety type automatic dewatering and measurement and control protective device |
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2011
- 2011-07-27 CN CN2011102113640A patent/CN102352774A/en active Pending
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| JPH11217994A (en) * | 1998-01-30 | 1999-08-10 | Maeda Corp | Draining device for tunnel |
| US20010010432A1 (en) * | 1998-11-20 | 2001-08-02 | Cdx Gas, Llc, Texas Limited Liability Company | Method and system for accessing subterranean deposits from the surface |
| CN101008317A (en) * | 2006-01-27 | 2007-08-01 | 李维熙 | Coal mine safety disaster-resistant type automatic main drainage system |
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| CN201460978U (en) * | 2009-06-09 | 2010-05-12 | 王红军 | Mine water drainage automatic device |
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| CN201884062U (en) * | 2010-07-30 | 2011-06-29 | 八达电气有限公司 | Mine intrinsic safety type automatic dewatering and measurement and control protective device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677569A (en) * | 2018-12-29 | 2019-04-26 | 深圳市水务科技发展有限公司 | The control method of dock draining |
| CN111677549A (en) * | 2020-06-10 | 2020-09-18 | 开滦（集团）有限责任公司电信分公司 | Mine drainage control method, device, equipment and storage medium |
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Application publication date: 20120215 |