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CN102175293A - System and method for adjusting accuracy of mechanical water meter - Google Patents

System and method for adjusting accuracy of mechanical water meter Download PDF

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Publication number
CN102175293A
CN102175293A CN 201110031562 CN201110031562A CN102175293A CN 102175293 A CN102175293 A CN 102175293A CN 201110031562 CN201110031562 CN 201110031562 CN 201110031562 A CN201110031562 A CN 201110031562A CN 102175293 A CN102175293 A CN 102175293A
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water meter
plum blossom
finger
tested
speed sensor
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CN 201110031562
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孔明
管清岩
陈允睿
赖欣欢
汪晨
李相臣
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China Jiliang University
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China Jiliang University
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Priority to CN 201110031562 priority Critical patent/CN102175293A/en
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Abstract

本发明公开了一种机械式水表准确性调节系统和方法。包括数据处理系统、梅花指转速传感器、开关阀、标准水表和待测水表；水表调节系统依次串接有开关阀、标准水表和待测水表；在标准水表和待测水表表盘上方分别安装有梅花指转速传感器，梅花指转速传感器与数据处理系统相连。本发明利用比较法，通过检测测水表表盘上的梅花指转速测定机械式水表转速，代替了人眼根据经验目测，提高了水量检测准确度，从而提高了水表检测准确度。结构简单，无须采用计算机设备，在很大程度上降低了水表调节装置的成本。非接触式测量，对水表本身不会造成影响。使水表调节快速直观，节约大量的时间以及人力成本。

Figure 201110031562

The invention discloses a mechanical water meter accuracy adjustment system and method. Including data processing system, plum blossom finger speed sensor, on-off valve, standard water meter and water meter to be tested; the water meter adjustment system is connected in series with on-off valve, standard water meter and water meter to be tested; Refers to the rotation speed sensor, and the plum blossom refers to the connection between the rotation speed sensor and the data processing system. The invention uses a comparison method to measure the rotational speed of a mechanical water meter by detecting the rotational speed of the plum blossom finger on the dial of the water meter, which replaces the visual inspection by human eyes based on experience, and improves the accuracy of water volume detection, thereby improving the detection accuracy of the water meter. The structure is simple, no computer equipment is needed, and the cost of the water meter regulating device is greatly reduced. Non-contact measurement will not affect the water meter itself. Make water meter adjustment fast and intuitive, saving a lot of time and labor costs.

Figure 201110031562

Description

Mechanical type water meter accuracy regulating system and control method
Technical field
The present invention relates to liquid flow mearuement device and control method, especially relate to a kind of mechanical type water meter accuracy regulating system and control method.
Background technology
In the process of manufacturer production mechanical type water meter, have a part of product water consumption is measured inaccurate situation, this just requires the workman before the input practical application of dispatching from the factory, set screw by adjusting the water meter rear end makes it be able to accurately measure the requirement of water consumption with this measurement accuracy of regulating water meter.At present the workman to regulate the device of water meter mainly be that some water meters to be measured are installed in series at test section, open switch valve to the test section water flowing and inject work measuring instrument, discharge is transferred to the flow value of regulation with variable valve.The workman estimates rule of thumb that plum blossom refers to that (plum blossom refers to rotate with mechanical water meter turbine rotating speed in the water meter dial plate, its rotating speed is directly proportional with wheel speed, so the rotating speed that plum blossom refers to is relevant with the accuracy of water meter), adjust the set screw of water meter rear end, refer to that until plum blossom rotating speed reaches the rated rotational frequency of water meter under this flow value.This water meter promptly is considered as being adjusted into eligible list.
This control method accuracy is low, poor reliability, adjustment process are consuming time serious, is not easy to water meter is carried out quick adjustment.The time of flow of 4 flow points such as flow wherein commonly used, boundary flow, minimum flow, mistake current-carrying capacity is wanted 30 minutes, about 1 hour consuming time of whole detection palpus.Adjustment process depends on workman's operating experience fully and is responsible for and estimates that reliability is very low.And it is lower to have caused water meter to regulate work efficiency, for some large-scale water meter manufacturing enterprises, produces ten hundreds of water meters every day, also is a hard work that workload is big, labour intensity is high to the adjusting of water meter.And long-acting rate is low detection time, is not easy to water meter is carried out quick adjustment.Because needs of production before water meter drops into commercial Application, need be regulated water meter in industry spot.Present regulating device complex structure is unfavorable for that dismounting moves and install, at the convenience of practical application and rapidly and efficiently also exist very big problem on the property.
Summary of the invention
The purpose of this invention is to provide a kind of mechanical type water meter accuracy regulating system and control method, can improve the accuracy in detection of water meter, reduce cost, be convenient to the staff and carry out the work of water meter quick adjustment.
The objective of the invention is to realize by following technical scheme:
One, a kind of mechanical type water meter regulating system:
The present invention includes data handling system, plum blossom refers to speed probe, switch valve, standard water meter and water meter to be measured; The water meter regulating system is serially connected with switch valve, standard water meter and water meter to be measured successively; Be separately installed with plum blossom and refer to speed probe above standard water meter and water meter dial plate to be measured, plum blossom refers to that speed probe links to each other with data handling system.
Described plum blossom refers to speed probe: comprise laser instrument, phototriode and amplifier; One end of first resistance is connected with the 5V power supply, and the other end is connected with the positive pole of laser instrument; The minus earth of laser instrument; The collector 5V power supply of phototriode connects, and emitter connects an end of second resistance and 3 pin of amplifier respectively; The other end ground connection of second resistance; One end of the 3rd resistance connects an end of the 4th resistance and 2 pin of amplifier respectively; The other end ground connection of the 4th resistance; 8 pin of amplifier are connected with the 5V power supply, 4 pin ground connection, and the end that 1 pin connects the 5th resistance respectively is connected with the ARM embedded system, and plum blossom refers to the laser alignment water meter.
Two, a kind of mechanical type water meter control method, the step of this method is as follows:
1) switch valve, standard water meter and water meter to be measured are connected successively is connected into pipeline, plum blossom is installed on each water meter refers to speed probe;
2) in testing process, at first switch valve is opened water flowing in pipeline.This moment, current passed through standard water meter and water meter to be measured, and plum blossom refers to rotate;
3) plum blossom referred to that speed probe begins to gather after the data handling system time-delay made described two water meter smooth operations in 30 seconds, the water yield that flows through in pipeline reaches fixed volume, be that standard water meter plum blossom refers to rotate 100 circles, this moment, plum blossom referred to that speed probe produces n * 100 pulse, n is the number of teeth that plum blossom refers to, the timer of data handling system calculates plum blossom and refers to that speed probe produces n * 100 a time t that pulse consumed 1Measure simultaneously that water meter plum blossom to be measured refers to rotate 100 circles, plum blossom refers to that speed probe produces n * 100 a time t that pulse consumed 2Refer to umber of pulse and the time that speed probe produces according to plum blossom, draw standard scale respectively and tested table plum blossom refers to tachometer value;
4) difference of the tachometer value that observation standard water meter and water meter plum blossom to be measured refer on display device is adjusted the water meter set screw of water meter to be measured, the tachometer value data consistent that tachometer value that water meter plum blossom to be measured refers to and standard water meter plum blossom are referred to, and adjusting is finished.
The present invention compares with background technology, and the useful effect that has is:
1. utilize relative method, refer to tachometry mechanical type water meter rotating speed, replaced human eye rule of thumb to estimate, improved water yield accuracy in detection, thereby improved the water meter accuracy in detection by detecting the plum blossom of surveying on the water meter dial plate.
2. simple in structure, need not adopt computer equipment, reduced the cost of water meter regulating device to a great extent.
3. non-contact measurement can not impact water meter itself.
4. make water meter regulate quicklook, save a large amount of time and human cost.
Description of drawings
Fig. 1 is a mechanical type water meter regulating system structural drawing.
Fig. 2 is that plum blossom refers to the speed probe circuit diagram.
Fig. 3 is a water meter regulating system block diagram.
Among Fig. 1: 1. data handling system, 2. water meter set screw, 3. plum blossom refers to speed probe, 4. switch valve, 5. standard water meter, 6. tested water meter, 7. pipeline;
Among Fig. 2: U1 is a laser instrument, and Q1 is a phototriode, and U2 is the NE5332 amplifier.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
As Fig. 1, Fig. 2, shown in Figure 3, the present invention includes: data handling system 1, water meter set screw 2, plum blossom refer to speed probe 3, switch valve 4, standard water meter 5 and water meter to be measured 6, pipeline 7.The water meter regulating system is serially connected with switch valve 4, standard water meter 5 and water meter to be measured 6 successively, is connected by pipeline 7 between each device.Be separately installed with plum blossom and refer to speed probe 3 above standard water meter 5 and water meter to be measured 6 dial plates, plum blossom refers to that speed probe 3 links to each other with data handling system 1.
Described plum blossom refers to speed probe 3: comprise laser instrument U1, phototriode Q1 and amplifier U2; One end of first resistance R 1 is connected with the 5V power supply, and the other end is connected with the positive pole of laser instrument U1; The minus earth of laser instrument U1; The collector 5V power supply of phototriode Q1 connects, and emitter connects an end of second resistance R 2 and 3 pin of amplifier U2 respectively; The other end ground connection of second resistance R 2; One end of the 3rd resistance R 3 connects an end of the 4th resistance R 4 and 2 pin of amplifier U2 respectively; The other end ground connection of the 4th resistance R 4; 8 pin of amplifier U2 are connected with the 5V power supply, 4 pin ground connection, and the end that 1 pin connects the 5th resistance R 5 respectively is connected with the ARM embedded system, and laser instrument U1 aims at the water meter plum blossom and refers to.Wherein, phototriode Q2 is a high speed 3DU33 silicon phototriode, can respond laser instrument U1 emitted laser.When with laser instrument U1 emitted laser when water meter plum blossom digital reflex is returned, phototriode Q2 is converted into electric signal by emitter output with the laser signal of reflected back.The pulse signal input data processing system 1 paired pulses waveform that comparer obtains is counted, and each high level is the tooth that plum blossom refers to and turns over the detection position.By to the high level in certain hour counting, thereby obtain the rotating speed that plum blossom refers to.
Described data handling system 1 comprises ARM embedded system, keyboard and display device.Plum blossom refers to that pulse signal that speed pickup 3 collects can import the ARM embedded system and handle.The plum blossom that processing obtains refers to that rotary speed data shows on display device.Data handling system is carried out man-machine interaction by keyboard.
Principle of work of the present invention is as follows:
1) switch valve 4, standard water meter 5 and water meter to be measured 6 are connected successively is connected into pipeline 7, plum blossom is installed on each water meter refers to speed probe 3; Note during installation that plum blossom refers to that the laser instrument U1 of speed probe 3 aims at the water meter plum blossom and refers to;
2) in testing process, at first switch valve 4 is opened water flowing in pipeline 7.This moment, current passed through standard water meter 5 and water meter to be measured 6, and plum blossom refers to rotate;
3) data handling system 1 time-delay is 30 seconds, make described two water meter smooth operations after plum blossom refer to that speed probe begins to gather.The water yield that flows through in pipeline 7 reaches fixed volume, and promptly standard water meter 5 plum blossoms refer to rotate 100 circles, and this moment, plum blossom referred to that speed probe produces n * 100 pulse, and wherein n is the number of teeth that plum blossom refers to.The timer of data handling system 1 calculates plum blossom and refers to that speed probe produces n * 100 a time t that pulse consumed 1The timer of data handling system measures simultaneously that water meter 6 plum blossoms to be measured refer to rotate 100 circles, plum blossom refers to that speed probe produces n * 100 a time t that pulse consumed 2Refer to umber of pulse and the time that speed probe produces according to plum blossom, draw standard water meter 5 respectively and water meter to be measured 6 plum blossoms refer to tachometer value; And, can also obtain the wheel speed of standard water meter 5 and water meter to be measured 6 by data-switching;
4) difference of the tachometer value that observation standard water meter 5 and water meter to be measured 6 plum blossoms refer on display device, the water meter set screw 2 of tested water meter is carried out regulating clockwise or counterclockwise, repeat above-mentioned steps, until the detected value of water meter 6 to be measured and the detected value data consistent of standard water meter 5, adjusting is finished.This moment, but the people thought that the accuracy of water meter 6 to be measured is identical with the accuracy of standard water meter 5.The data that measure in adjustment process can be stored in for future referencely in the data handling system 1 to be seen and calls.

Claims (3)

1.一种机械式水表调节系统，其特征在于：包括数据处理系统（1）、梅花指转速传感器（3）、开关阀（4）、标准水表（5）和待测水表（6）；水表调节系统依次串接有开关阀（4）、标准水表（5）和待测水表（6）；在标准水表（5）和待测水表（6）表盘上方分别安装有梅花指转速传感器（3），梅花指转速传感器（3）与数据处理系统（1）相连。1. A mechanical water meter adjustment system, characterized in that it includes a data processing system (1), a plum blossom finger speed sensor (3), an on-off valve (4), a standard water meter (5) and a water meter to be tested (6); the water meter The adjustment system is connected in series with the on-off valve (4), the standard water meter (5) and the water meter to be tested (6); the plum blossom finger speed sensor (3) is respectively installed above the dials of the standard water meter (5) and the water meter to be tested (6) , the plum blossom finger speed sensor (3) is connected with the data processing system (1). 2.根据权利要求1所述的一种机械式水表调节系统，其特征在于：所述的梅花指转速传感器（3）：包括激光器（U1）、光敏三极管（Q1）和放大器（U2）；第一电阻（R1）的一端与5V电源连接，另一端与激光器（U1）的正极连接；激光器（U1）的负极接地；光敏三极管（Q1）的集电极5V电源连接，发射极分别连接第二电阻（R2）的一端和放大器（U2）的3脚；第二电阻（R2）的另一端接地；第三电阻（R3）的一端分别连接第四电阻（R4）的一端和放大器（U2）的2脚；第四电阻（R4）的另一端接地；放大器（U2）的8脚与5V电源连接，4脚接地，1脚分别连接第五电阻（R5）的一端和ARM嵌入式系统连接，激光器（U1）对准水表梅花指。2. A mechanical water meter adjustment system according to claim 1, characterized in that: the plum-blossom finger speed sensor (3): includes a laser (U1), a phototransistor (Q1) and an amplifier (U2); the second One end of a resistor (R1) is connected to the 5V power supply, and the other end is connected to the positive pole of the laser (U1); the negative pole of the laser (U1) is grounded; the collector of the phototransistor (Q1) is connected to the 5V power supply, and the emitter is connected to the second resistor respectively. One end of (R2) and pin 3 of the amplifier (U2); the other end of the second resistor (R2) is grounded; one end of the third resistor (R3) is respectively connected to one end of the fourth resistor (R4) and 2 pins of the amplifier (U2) pin; the other end of the fourth resistor (R4) is grounded; pin 8 of the amplifier (U2) is connected to a 5V power supply, pin 4 is grounded, pin 1 is connected to one end of the fifth resistor (R5) and the ARM embedded system, and the laser ( U1) Align the plum blossom finger of the water meter. 3.根据权利要求1所述装置的一种机械式水表调节方法，其特征在于该方法的步骤如下：3. A kind of mechanical water meter adjusting method of the device according to claim 1, characterized in that the steps of the method are as follows: 1）将开关阀、标准水表和待测水表依次串联连入管路，在各水表上安装梅花指转速传感器；1) Connect the on-off valve, the standard water meter and the water meter to be tested into the pipeline in series, and install the plum blossom finger speed sensor on each water meter; 2）在检测过程中，首先将开关阀打开向管路中通水；2) During the detection process, first open the switch valve to pass water into the pipeline; 此时水流通过标准水表和待测水表，梅花指产生转动；At this time, the water flow passes through the standard water meter and the water meter to be tested, and the plum blossom finger rotates; 3）数据处理系统延时30秒使所述两个水表平稳运转之后梅花指转速传感器开始采集，当管路中流过的水量达到固定容积，即标准水表梅花指转动100圈，此时梅花指转速传感器产生n×100个脉冲，n为梅花指的齿数，数据处理系统的计时器计算梅花指转速传感器产生n×100个脉冲所消耗的时间t1，同时测量待测水表梅花指转动100圈、梅花指转速传感器产生n×100个脉冲所消耗的时间t2；根据梅花指转速传感器产生的脉冲数以及时间，分别得出标准表和被测表梅花指转速值；3) After the data processing system delays for 30 seconds to make the two water meters run smoothly, the speed sensor of the plum blossom finger starts to collect. When the water flowing in the pipeline reaches a fixed volume, that is, the standard water meter plum blossom finger rotates 100 times. At this time, the speed of the plum blossom finger The sensor generates n×100 pulses, n is the number of teeth of the plum blossom finger, the timer of the data processing system calculates the time t 1 consumed by the plum blossom finger speed sensor to generate n×100 pulses, and simultaneously measures the rotation of the plum blossom finger of the water meter to be tested 100 times, The time t 2 consumed by the plum blossom finger speed sensor to generate n×100 pulses; according to the pulse number and time generated by the plum blossom finger speed sensor, the standard table and the measured table are respectively obtained. 4）在显示装置上观测标准水表和待测水表梅花指的转速值的差异，调整待测水表的水表调节螺钉，使待测水表梅花指的转速值和标准水表梅花指的转速值数据一致，调节完成。4) Observe the difference between the rotational speed values of the standard water meter and the plum blossom finger of the water meter to be tested on the display device, adjust the water meter adjustment screw of the water meter to be tested, so that the rotational speed value of the plum blossom finger of the water meter to be tested is consistent with the speed value data of the plum blossom finger of the standard water meter, Adjustment is complete.
CN 201110031562 2011-01-29 2011-01-29 System and method for adjusting accuracy of mechanical water meter Pending CN102175293A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102589657A (en) * 2012-02-29 2012-07-18 宁波明泰流量设备有限公司 Large-caliber multi-meter serial-connection fast calibrating device and large-caliber multi-meter serial-connection fast calibrating method
CN103234606A (en) * 2013-04-19 2013-08-07 睿能太宇（沈阳）能源技术有限公司 System and method for verifying flow rate
CN113865677A (en) * 2021-10-12 2021-12-31 安徽翼迈科技股份有限公司 Water meter plum-blossom needle rotation speed detection method and water meter plum-blossom needle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554924A1 (en) * 1983-11-15 1985-05-17 Comeureg Sa Digital thermometer
KR100760180B1 (en) * 2006-02-16 2007-09-20 (주) 한일네트워크엔지니어링 Comparative Flow Measurement System for Mechanical Water Meter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554924A1 (en) * 1983-11-15 1985-05-17 Comeureg Sa Digital thermometer
KR100760180B1 (en) * 2006-02-16 2007-09-20 (주) 한일네트워크엔지니어링 Comparative Flow Measurement System for Mechanical Water Meter

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* Cited by examiner, † Cited by third party
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102589657A (en) * 2012-02-29 2012-07-18 宁波明泰流量设备有限公司 Large-caliber multi-meter serial-connection fast calibrating device and large-caliber multi-meter serial-connection fast calibrating method
CN103234606A (en) * 2013-04-19 2013-08-07 睿能太宇（沈阳）能源技术有限公司 System and method for verifying flow rate
CN113865677A (en) * 2021-10-12 2021-12-31 安徽翼迈科技股份有限公司 Water meter plum-blossom needle rotation speed detection method and water meter plum-blossom needle

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Application publication date: 20110907