HL5000检漏仪的特点及应用分析.docx

1、HL5000检漏仪的特点及应用分析HL5000检漏仪的特点及应用分析摘要： 本文结合新型德国SEBA的HL5000型数字检漏仪的原理及功能特点，结合实际使用情况介绍HL5000型数字检漏仪在供水管网泄漏检测中的应用。Abstract: this paper combines the new German SEBA HL5000 type digital leak detector principle and function characteristics, combined with the actual usage is introduced HL5000 type digital lea

2、k detector in the application of the water supply pipeline leak detection.关键词： 检漏仪、数字滤波 、泄漏检测Keywords: leak detector, digital filtering, leak detection1 检漏仪的发展状况1 development of leak detector随着漏损的不断增加，应用预定位技术听音棒，解决漏损问题已经不能满足社会发展的需要，人们对检漏速度和检漏质量的要求越来越高，随之产生了检漏仪。目前国外品牌的检漏仪主要有日本富士检漏仪，英国雷迪检漏仪和德国SEBA检漏仪，

3、国内生产检漏仪的厂商主要有哈尔滨无线电六厂、扬州西蜀仪器厂和扬州捷通仪器厂。我公司近年来引进的检漏仪主要是德国SEBA检漏仪。从德国SEBA检漏仪的发展来看，从原来的模拟信号处理发展到现代数字信号处理。数字型号的检漏仪其中以德国SEBA的HL5000检漏仪为代表，它是采用数字信号处理，具有数字频率分析数字滤波瞬时值和最小值记录及区分漏水与短时用水地连续监测等功能，只有数字化的仪器才能实现，这使得其抗环境噪声干扰能力大大增强。Along with the increase of leakage, the application due to technology - listening, sol

4、ve the problem of leakage has cant meet the needs of social development, people for leak detection and leak detection speed more and more high quality requirements, the resulting the leak detector. Foreign brands now leak detector are mainly Japan Fuji leak detector, the leak detector and Germany re

5、ddy SEBA leak detector, domestic production of leak detector manufacturer mainly has six Harbin radio factory, yangzhou west sichuan instrument factory and yangzhou JieTong instrument plant. My company in recent years the introduction of leak detector mainly Germany SEBA leak detector. SEBA from Ger

6、many leak detector development, from the original analog signal processing to modern digital signal processing. Digital type of leak detector with Germany SEBA HL5000 leak detector, it is to use digital signal processing, a digital frequency analysis, digital filtering, instantaneous value and the m

7、inimum record and distinguish between leakage and short water continuous monitoring, and other functions, only digital instrument can realize, this makes the environment noise interference ability greatly enhanced.2 HL5000检漏仪主要功能The main functions 2 HL5000 leak detector2.1 HL5000检漏仪配有音量与扩音的双向调节功能。每一

8、位使用者可根据所需来调节适宜的音量。扩音值有8个刻度，在每次检测时，应选择中等值3或4为佳，选好后对目标管线进行检测，这时在主机显示屏上会出现水平显示条，可以显示被扩漏点声响的瞬时之和最小值，其中瞬时值就是显示的外界噪声变化，最小值则是捕捉地下发出的持续噪音的变化，根据泄漏噪音应该是连续的声音信号的原理，因此可以把最小值作为真正的漏水声，因此我们在检测漏水时主要以最小值为准，观察最小值水平显示条的长短变化和数值变化，当检测到某点的最小值的水平显示条最长和显示数值最大时，则此点基本上可以判断为漏水点。2.1 HL5000 leak detector is equipped with the vo

9、lume and the amplification of two-way adjustment function. Every user can according to need to adjust the appropriate volume. Amplification values have eight scale, at every time of test, should choose the contour is better 3 or 4, choose the right after the detection of target pipeline, at this tim

10、e will appear on the host screen level display, can display by expanding funnelled sound of minimizing the sum of the instantaneous value of the instantaneous value is displayed outside noise changes, the minimum is to capture the change of the underground continuous noise, according to the leak noi

11、se should be the principle of continuous sound signal, therefore can use minimum as a real sound leakage, so we mainly will be subject to the minimum when detecting leaks, observe the length of the article according to the minimum level and numerical changes, when detected some point of the minimum

12、level of display the longest and largest numerical, it basically can be judged as leaking point.2.2 HL5000 检漏仪提供了多种组合滤波选择功能。检漏人员可以根据管道材质，土壤特性和传感器进行最佳选择。可供选择的频率有九个，分别是：70HZ、106HZ、160HZ、240HZ、360HZ、540HZ、800HZ、1200HZ、1800HZ。对于经验丰富的检漏人员，也可选择组合滤波，通过选择与漏水声相匹配的频率，以增强仪器抗干扰能力。一般来说，松软的土地，选择的频率范围是70-360HZ，硬化较

13、好的路面选择的频率范围是240-540HZ，在塑胶或低工作压管线检漏，选择的频率范围是70-240HZ，直接用接触式传感器检漏，选择的频率范围是540-1200HZ,电力管线或电力设备会产生300HZ以下的低调波回路声，因此检漏时周围有电力管线干扰的可把频率选择240HZ或360HZ以上的频率组合，避开此波段干扰。以上这些波段可任意组合，可组合多种滤波范围，比档位滤波的可选性大，滤波范围更宽。HL5000检漏仪还具有频率分析功能，能自动提示所听漏水声的频率，从而为使用者适时选择滤波范围提供了帮助。使用者最终选择决定选用哪种滤波波段频率。一般而言，用地面传感器测量时用低频波段，按键接触式传感器用

14、高频波段。若测量不成功，调到更宽波段，以防止漏点声响被过滤。2.2 HL5000 leak detector provides a variety of combination filtering option. Leak detection personnel can according to the pipe material, soil properties and sensors for the best choice. Nine alternative frequency, respectively is: 70 hz, 106 hz and 160 hz, 240 hz and 3

15、60 hz, 540 hz and 800 hz, 1200 hz and 1800 hz. Personnel for experienced leak detection, also can choose combination filter, by selecting the match the leakage acoustic frequency, to enhance anti-interference ability instrument. In general, soft soil, selection of frequency range is 70-360 hz, and g

16、ood road surface hardening of the selected frequency range is 240-540 hz, working in plastic or low pressure pipeline leak detection, the selection of frequency range is 70-240 hz, with non-contact sensor directly leak detection, the selection of frequency range is 540-1200 hz, power line or power e

17、quipment will produce 300 hz low sound wave circuit, so the leak detection with power line interference can turn around when the frequency above 240 hz and 360 hz frequency combination, avoid the band interference. These wavelengths can be any combination, combination of a variety of filter, filter

18、optional sex is large than the gear, filter range are more wide. HL5000 leak detector also has the function of frequency analysis, it can automatic prompt hear leakage acoustic frequency, thus timely choose filter provides the help for users. The user decided to choose what kind of filter band frequ

19、ency was finally chosen. In general, use the ground sensor in the low frequency band, key touch sensor with high frequency band. If the measurement is not successful, transferred to the more wide range, in order to prevent the funnelled noise by filtering.2.3 HL5000检漏仪具有连续监测功能。原理是：设定好测量时间后，启动定时测量，主机

20、液晶显示屏上以图标形式显示在设定的时间段内测定的该管道声响。此方法主要适用于小区分户的测量，区分漏水和短时用水。当进行小区排查时，发现分户自来水管道有漏水异常时，将传感器固定在管道上，设定时间后启动定时测量，测量结束，液（版权声明：本文转载自论文网在线()，版权归原作者所有。）晶显示屏上会显示声级曲线。如果声级曲线是直的，则说明此管道有漏水存在，反之有凹的声级曲线，则说明不存在漏水，是用户用短时水情况。这种方法的最大优点是不用人工长时间监听，节省了检漏人员的耳力。3、 HL5000数字检漏仪的优点缺点。2.3 HL5000 leak detector with continuous monit

21、oring function. Principle is: after set measuring time, start the timing measurement, the host in the form of ICONS on the LCD panel is shown in the set time period that the pipeline noise measurement. This method is mainly used in the area of household measurement, to distinguish the leakage and th

22、e short of water. When screening for village, found that household tap water pipeline leakage anomaly, sensor fixed on the pipeline, set a time after the start timing measurement, measuring end, fluid (net of paper of copyright statement: this article reprinted from online (), all peer originator.)

23、Crystal display screens will show sound level curve. If the sound level curve is a straight, explain the pipeline leak exists, whereas it can concave sound level curve, then there is no leaking, users are short of water. The biggest advantage of this method is not the master of time listening, saves

24、 ErLi of leak detection. 3, advantages disadvantages HL5000 digital leak detector.3.1 具有携带轻便，外形好看颜色醒目，触摸时按键手感舒服，可视操作与耳机监听相结合，有效的保护了各种噪声对检漏人员的耳朵损害，操作简便设计更加人性化。3.1 has a portable, great-looking color striking, when touch buttons feel is comfortable, visible operation combined with headphones listening

25、, effective protection of various noise on leak detection personnel ear damage, easy to operate more humanized design.3.2 扩音显示、柱状图测量显示和连续监测显示，具有较强的直观性，更加适用于刚从事检漏工作的人员，通过判定最小值的办法便可测出漏水点的位置，简单易学，最大限度的节省了检漏人员的人力。3.2 pa display, the histogram display and continuous monitoring measurement showed that the

26、 strong intuitive, more suitable for personnel engaged in the work of leak detection, by determining the minimum method can measure the location of the leaking point, easy to learn, maximum saved a leak detection of human.3.3 具有较强的数字滤波功能，抗干扰能力强，可以自动滤波，也可选择组合滤波，可选择的频率较多，适合在干扰较大的地方使用。3.3 strong digita

27、l filtering function, the anti-interference ability is strong, can automatic filtering, combined filter, can choose the optional frequency, more suitable for use in interference bigger place.3.4 传感器连接插头易松动固定不牢。3.4 sensor fixed connection plug is easy to loose.3.5 显示屏有时会出现死机状态，必须按开关键重启才能恢复正常。3.5 stat

28、e display sometimes fail, must according to the open key to reboot to return to normal.4 、应用案例分析。4, the application case analysis.我们对德国HL5000型检漏仪和原有设备德国HL90型检漏仪的配合使用作一对比，效果显著。以下我就对在检漏中遇到的难点，疑点，结合该仪器发挥的主要作用，对漏点情况加以分析，提供给大家。We have German HL5000 leak detector and the original equipment HL90 type of le

29、ak detector used in Germany as a contrast, effect is obvious. Here to encounter difficulties in leak detection, I suspect, in combination with the instrument play a main role, to funnelled situation analysis, provided to you.4.1 我市黄河大桥收费站在2006年6月发生了一次DN1200的管道漏水，具体情况如下：我们到达现场后发现，此次漏水面积非常大，约在300米*20米

30、的矩形范围内，此收费站过往车辆较多，外界环境噪音较大，管道材质为水泥管，管道埋伏有六七深，附近没有任何阀门，无法采取阀拴听音和相关分析，因管道较深，管线定位仪也无法检测到泄漏管道的准确位置 ，漏点具体位置很难判定。我们通过对现场情况的认真分析和研究，立即制订检测方案，决定同时使用HL5000型检漏仪和HL90型检漏仪对该段漏水区域进行大面积的路面听音检测，使用HL90检漏仪对该段漏水管道检测时，无法捕捉到漏水信息，无法确定准确漏水点位置。利用HL5000检漏仪，在漏水区域内进行大面积听音，使用扩音显示和柱状图形显示，对瞬时值和最小值进行观察分析和数据对比，并通过选择组合滤波70-106HZ,1

31、06-360HZ 频率范围，滤掉外界环境噪声干扰，很快定出漏点位置。经开挖后状态如下：管道埋深6.7米，管径为DN1200mm水泥管道，漏点为水泥管道承接口处漏水，漏水口朝下方，周围泥土被冲出地面，路面下方已空，形成水包漏水口的现象，漏量约为100立方米/小时。4.1 the city of the Yellow River bridge toll station in June 2006 has been a 48 ) of the pipe is leaking, details are as follows: after we arrived at the scene found tha

32、t the leakage area is very large, about 300 meters * 20 meters of rectangle within the scope of this toll vehicles is more, the environment noise is bigger, pipe material for the cement pipe, pipe lie about six or seven deep and not near any valves, cant take the valve to listening and correlation analysis, because pipeline is deeper, pipeline locator does not detect the position of the pipeline leakage, funnelled location is difficult to determine. We are through the careful analysis and study of site condition, immediately make testing plan, decided to use both HL5000 leak detector