WO2013185406A1 - 超声波流量计及超声波流量计量方法 - Google Patents

超声波流量计及超声波流量计量方法 Download PDF

Info

Publication number
WO2013185406A1
WO2013185406A1 PCT/CN2012/078915 CN2012078915W WO2013185406A1 WO 2013185406 A1 WO2013185406 A1 WO 2013185406A1 CN 2012078915 W CN2012078915 W CN 2012078915W WO 2013185406 A1 WO2013185406 A1 WO 2013185406A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic
signal
tube
axis
cross
Prior art date
Application number
PCT/CN2012/078915
Other languages
English (en)
French (fr)
Inventor
谭文胜
Original Assignee
广州柏诚智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州柏诚智能科技有限公司 filed Critical 广州柏诚智能科技有限公司
Priority to EP12772186.8A priority Critical patent/EP2722652B8/en
Priority to ES12772186.8T priority patent/ES2686022T3/es
Publication of WO2013185406A1 publication Critical patent/WO2013185406A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters

Definitions

  • the invention relates to an ultrasonic flow meter and an ultrasonic flow metering method.
  • the ultrasonic flowmeter is provided with two mounting ports on the pipe body, and ultrasonic detecting elements are respectively disposed at the two mounting openings, and a signal reflecting table is disposed in the pipe body, and the ultrasonic waves emitted by the first ultrasonic detecting component pass through The signal reflection stage is further transmitted to the second ultrasonic detecting element, and the liquid flow rate flowing through the pipe body per unit time is detected according to the distance between the two ultrasonic detecting elements and the time taken for the ultrasonic signal to be transmitted between the two ultrasonic detecting elements. .
  • a signal reflection stage is generally disposed in the tube body, and the first ultrasonic transducer converts the electrical signal into an ultrasonic vibration signal, and the generated vibration signal enters through the first installation port. After being reflected by the first signal reflection stage, it is transmitted to the second signal reflection stage in the axial direction, reflected by the second signal reflection stage, and transmitted by the second installation port, and is driven by the second ultrasonic transducer. The ultrasonic vibration signal is converted into an electrical signal.
  • the current structure has the following drawbacks: 1.
  • the signal transmission path of the ultrasonic flowmeter is a 'U' shape, and the ultrasonic signal is a single-segment linear distance in the tube body, which cannot accurately reflect the flow of the liquid in the entire tube, and the accuracy is affected; 2.
  • the existing 'U' type structure has a large flow blocking member inside the flow measuring tube, which causes a large pressure loss to the pipeline. If there is impurity inside the fluid, the pipeline may be easily blocked; 3. Since the existing ultrasonic flowmeter only measures the linear distance of a single segment in the tube body, in order to improve the detection accuracy, the ultrasonic detecting component needs to be close to the axial center position of the pipe body, which is bound to affect the flow of the liquid in the pipe body. Increases the turbulence of the liquid and affects the accuracy of the measurement.
  • the present invention is to overcome the deficiencies of the prior art and to provide a
  • the ultrasonic flow meter and the ultrasonic flow metering method can more accurately detect the flow rate of the liquid flowing through, and reduce the attenuation of the signal, and also reduce the pressure loss of the flow meter, and the reliability is also improved.
  • An ultrasonic flowmeter comprising a pipe body, two mounting openings are arranged on the pipe body, ultrasonic detecting elements are respectively arranged at the two mounting openings, and a signal reflecting platform is arranged in the pipe body; perpendicular to the pipe body axis The face is a cross section, and the axes of the two ultrasonic detecting elements are inclined at an angle with respect to the cross section of the pipe body.
  • the pipe body comprises an outer pipe and an inner pipe, the inner pipe is sleeved in the outer pipe, and each signal reflection platform is disposed on an inner wall of the inner pipe.
  • An adjustment hole is arranged on the outer tube, and an adjustment nail is arranged at the adjustment hole, and an end of the adjustment nail is pressed against the inner tube.
  • the outer wall of the inner tube is provided with an adjustment ring groove, and the positioning ring groove corresponds to the positioning nail.
  • a mounting seat is disposed at the mounting port, the mounting seat includes a mounting end and a fixed end, the axis of the mounting end is parallel to the cross section of the pipe body, and the axis of the fixed end is inclined at an angle with the cross section of the pipe body.
  • the ultrasonic detecting element is disposed on a fixed end of the mount.
  • the utility model further includes a snap ring comprising a pressure ring and at least two lugs, wherein the mounting end of the mounting seat is provided with at least two fixing grooves, each fixing groove comprises a circumferential rotating groove and a communicating with the rotating groove
  • the card is inserted into the slot, and the latch corresponds to the fixing slot; at least two dismounting recesses are provided on the exposed side of the snap ring.
  • a flange is disposed on the ultrasonic detecting element, and a sealing ring is disposed between the snap ring and the flange.
  • the signal reflection stage is only two.
  • the ultrasonic detecting element is located above the axis of the tube body, the centers of the two signal reflecting stages are lower than the axis of the tube body, and the centers of the two signal reflecting stages are respectively located in the tube body Both sides of the axis.
  • the angle between the perpendicular of the ultrasonic detecting element and the cross section is 15 degrees to 85 degrees.
  • the first ultrasonic detecting component emits an ultrasonic signal
  • the ultrasonic signal is inclined at an angle with respect to a cross section of the pipe body
  • the ultrasonic signal is transmitted to the signal reflecting table and reflected by the signal reflecting table
  • the flow rate of the liquid flowing through the tube body per unit time is detected based on the distance between the two ultrasonic detecting elements and the time during which the ultrasonic signal is transmitted between the two ultrasonic detecting elements.
  • the ultrasonic detecting element may be a commonly used ultrasonic transducer, and its function is to convert an electrical signal into an ultrasonic vibration signal, or to convert the ultrasonic vibration signal into an electrical signal.
  • the ultrasonic signal is sent by the first ultrasonic detecting component (the ultrasonic signal is not parallel or perpendicular to the axis of the pipe body), it is directly inclined into the pipe body, and the ultrasonic signal is not required to be reflected.
  • the pipe body is composed of an inner pipe and an outer pipe. When installing, the signal reflection table is first installed in the inner pipe, and then the inner pipe is sleeved into the outer pipe, which is more convenient to install; 3.
  • the function of the signal reflection stage is to reflect the ultrasonic vibration signal so that the ultrasonic vibration signal is accurately transmitted from the first ultrasonic detecting element to the second ultrasonic detecting element. Therefore, the position and angle of the signal reflecting table are very important.
  • a positioning hole is arranged on the outer tube, and the position of the inner tube can be adjusted by adjusting the nail, thereby adjusting the signal reflection stage in the inner tube to ensure the angle of the signal reflection stage, and the inner tube is up-regulated
  • the arrangement of the ring groove avoids the sliding of the inner tube in the outer tube; 4. Since the ultrasonic detecting component needs to be installed on the pipe body obliquely, it is difficult to install and process.
  • the mounting body is provided on the pipe body, and the fixed end of the mounting seat is inclined, which is convenient for processing, and the installation of the ultrasonic detecting component is more convenient; 5.
  • the ultrasonic detecting component is first installed in the mounting seat, and then the snap ring is inserted into the retaining ring of the snap ring by the tool, and the latch of the snap ring is inserted into the fixing slot to realize the snap ring. Fixing, when disassembling, the reverse rotation of the snap ring can exit the snap ring and take out the ultrasonic detection, and the disassembly and assembly of the ultrasonic detecting component is more convenient; 6.
  • the flange on the ultrasonic detecting component is matched with the sealing ring to avoid liquid leakage and improve the waterproof effect; 7. Since the ultrasonic detecting element is inclined with respect to the tube body, the number of signal reflecting stages can be reduced. When the number is two, the transmission path of the ultrasonic vibration signal in the tube body is at least two straight line segments, and the signal attenuation is reduced, and the ultrasonic flow rate is The test results are most ideal; 8.
  • the ultrasonic detecting component is located above the axis of the tube body, and the centers of the two signal reflecting tables are lower than the axis of the tube body and are located on both sides of the axis of the tube body instead of the middle portion, thereby reducing the accumulation of impurities in the tube in the signal reflection stage, thereby improving Reliability of detection; 9.
  • the angle between the perpendicular line of the ultrasonic detecting element and the cross section is 15 degrees to 85 degrees, which is convenient for the setting of the signal reflecting table and is more versatile.
  • FIG. 1 is an outline view of an ultrasonic flowmeter according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view showing an ultrasonic flowmeter according to an embodiment of the present invention
  • Figure 3 is an end view of the ultrasonic flowmeter according to the embodiment of the present invention
  • 4 is a schematic diagram of signal transmission of an ultrasonic flowmeter according to an embodiment of the present invention
  • Figure 5 is a view showing the mounting structure of the ultrasonic detecting element according to the embodiment of the present invention
  • Figure 6 is a structural view of a mounting seat according to an embodiment of the present invention
  • 7 is a structural diagram of a snap ring according to an embodiment of the present invention
  • Figure 8 is a partial enlarged view of Figure 6; Description of the reference signs: 10, pipe body, 11, inner pipe, 111, positioning ring groove, 12, outer pipe, 111, mounting port, 112, mounting seat, 1121, mounting end, 1122, fixed end, 1123, fixing groove, 11231, rotation Slot, 11232
  • an ultrasonic flowmeter includes a pipe body 10, two mounting ports 111 are disposed on the pipe body 10, and ultrasonic detecting elements 20 are respectively disposed at the two mounting ports 111.
  • a signal reflecting stage 30 is disposed in the tube body 10; a surface perpendicular to the axis of the tube body 10 is a cross section, and the axes of the two ultrasonic detecting elements 20 are inclined at an angle with respect to the cross section of the tube body 10.
  • the tube body 10 includes an outer tube 12 and an inner tube 11 .
  • the inner tube 11 is sleeved in the outer tube 12 , and each signal reflecting table 30 is disposed on an inner wall of the inner tube 11 .
  • An adjustment hole 114 is disposed on the outer tube 12, and an adjustment pin 115 is disposed at the adjustment hole 114, and an end portion of the adjustment pin 115 is pressed against the inner tube 11.
  • An outer ring wall of the inner tube 11 is provided with a positioning ring groove 111, and the positioning ring groove 111 corresponds to the positioning nail.
  • a mounting seat 112 is disposed at the mounting opening 111.
  • the mounting seat 112 includes a mounting end 1121 and a fixed end 1122.
  • the axis of the mounting end 1121 is parallel to the cross section of the tube 10, and the axis of the fixed end 1122 is
  • the cross section of the tubular body 10 is at an oblique angle, and the ultrasonic detecting element 20 is disposed on the fixed end 1122 of the mount 112.
  • the card ring 113 includes a pressure ring 1131 and at least two latches 1132.
  • the mounting end 1121 of the mounting seat 112 is provided with at least two fixing slots 1123, and each fixing slot 1123 includes a circumferential direction.
  • the rotating groove 11231 and the engaging groove 11232 communicating with the rotating groove 11231, the latch 1132 corresponds to the fixing groove 1123; and at least two dismounting recesses 1133 are provided on the exposed side of the snap ring 113.
  • a flange 21 is provided on the ultrasonic detecting element 20, and a seal ring 22 is provided between the snap ring 113 and the flange 21.
  • the signal reflection stage 30 is only two.
  • the ultrasonic detecting element 20 is located above the axis of the tube body 10, the centers of the two signal reflecting stages 30 are lower than the axis of the tube body 10, and the centers of the two signal reflecting stages 30 are respectively located Both sides of the axis of the tube body 10.
  • the angle between the perpendicular of the ultrasonic detecting element 20 and the cross section is 15 to 85 degrees.
  • the ultrasonic flow metering method is as follows: the first ultrasonic detecting element 20 emits an ultrasonic signal, and the ultrasonic signal is inclined at an angle with respect to the cross section of the tube body 10, and the ultrasonic signal is transmitted to the signal reflecting stage 30. And reflected by the signal reflection stage 30 to the second ultrasonic detecting element 20, according to the distance between the two ultrasonic detecting elements 20, the time taken for the ultrasonic signal to be transmitted between the two ultrasonic detecting elements 20, and the unit time is detected. The flow rate of the liquid flowing through the tube 10.
  • This embodiment has the following advantages: 1. During the detection process, after the ultrasonic signal is sent by the first ultrasonic detecting component 20 (the ultrasonic signal is not parallel or perpendicular to the axis of the pipe body 10), it is directly inclined into the pipe body 10, and the ultrasonic signal does not need to be reflected.
  • the first transmission is performed, and when the ultrasonic vibration signal is reflected by the signal reflection stage 30, the second transmission (or the third transmission) is performed, and finally the ultrasonic signal is received by the second ultrasonic detecting element 20;
  • the detecting elements 20 are all inclined with respect to the tube body 10, so that at least two signal reflections are reduced, pressure loss is reduced, reliability is mentioned to be improved, and the transmission path of the ultrasonic signals is not parallel to the axis of the tube body 10, and is also improved.
  • the pipe body 10 is composed of an inner pipe 11 and an outer pipe 12.
  • the signal reflecting stage 30 functions to reflect the ultrasonic vibration signal so that the ultrasonic vibration signal is accurately transmitted from the first ultrasonic detecting element 20 to the second ultrasonic detecting element 20, so the position of the signal reflecting stage 30 and The angle is very important.
  • the outer tube 12 is provided with a positioning hole 114.
  • the position of the inner tube 11 can be adjusted by adjusting the nail 115, thereby adjusting the signal reflection stage 30 in the inner tube 11.
  • the setting of the adjusting ring groove 111 on the inner tube 11 further avoids the sliding of the inner tube 11 in the outer tube 12; 4.
  • the pipe body 10 is provided with a mounting seat 112, and the fixed end 1122 of the mounting seat 112 is inclined, which can be easily processed, and the ultrasonic detecting component is convenient.
  • the installation of 20 is also more convenient; 5.
  • the ultrasonic detecting component 20 is first mounted in the mounting seat 112, and then inserted into the snap ring 113, and the tool is inserted into the dismounting recess 1133 of the snap ring 113 to rotate, and the latch 1132 of the snap ring 113 is engaged.
  • the fixing groove 1123 the fixing of the snap ring 113 is realized.
  • the snap ring 113 When the opening is reversed, the snap ring 113 can be reversely rotated to exit the snap ring 113 and the ultrasonic detecting is taken out, and the ultrasonic detecting element 20 is more convenient to be disassembled and assembled; 6.
  • the flange 21 on the ultrasonic detecting component 20 cooperates with the sealing ring 22 to avoid liquid leakage and improve the waterproof effect; 7. Since the ultrasonic detecting element 20 is inclined with respect to the tube body 10, the number of the signal reflecting stages 30 can be reduced. When the number is two, the transmission path of the ultrasonic vibration signal in the tube body 10 is at least two straight line segments, and the signal The attenuation is reduced, and the ultrasonic flowmeter has the best detection effect; 8.
  • the ultrasonic detecting element 20 is located above the axis of the tube body 10.
  • the centers of the two signal reflecting stages 30 are lower than the axis of the tube body 10 and are located on both sides of the axis of the tube body 10 instead of the middle portion, thereby reducing the impurity signal in the tube body 10.
  • the accumulation of the reflection stage 30 improves the reliability of the detection; 9.
  • the angle between the perpendicular line of the ultrasonic detecting element 20 and the cross section is 15 degrees to 85 degrees, which facilitates the setting of the signal reflecting table 30 and is more versatile.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

一种超声波流量计，包括管体（10），在管体（10）上设有两个安装口（111），在两个安装口（111）处分别设有超声波检测元件（20），在管体（10）内设有信号反射台（30）；垂直于管体（10）轴线的面为横截面，两个超声波检测元件（20）的轴线相对于管体（10）的横截面均呈倾斜夹角。还公开了一种超声波流量计量方法。该超声波流量计及超声波流量计量方法可以更准确地对流经液体的流量进行检测，并且减少了信号的衰减，同时也降低了流量计的压力损失，可靠性也得到了提高。

Description

超声波流量计及超声波流量计量方法
技术领域
本发明涉及一种 超声波流量计及超声波流量计量方法。
背景技术
超声波流量计是在管体上设有两个安装口，在两个安装口处分别设有超声波检测元件，在所述管体内设有信号反射台，第一个超声波检测元件所发出的超声波通过信号反射台再传输至第二个超声波检测元件，根据两个超声波检测元件之间的距离、超声波信号在两个超声波检测元件之间传输所用的时间，检测出单位时间内流经管体的液体流量。
现有的超声波流量计的管体内一般需在管体内设置有信号反射台，第一个超声波换能器将电信号转换为超声波振动信号，所产生的振动信号通过第一个安装口进入后，经第一个信号反射台反射后，沿轴向方向传输至第二个信号反射台，经第二个信号反射台反射后由第二个安装口传出，并由第二个超声波换能器将超声波振动信号转换为电信号。
现结构具有如下缺陷：
1 、该超声波流量计的信号传输路径为'U'字形，超声波信号在管体内为单段的直线距离，无法准确的反映整段管体内液体的流动情况，精确性受到影响；
2 、现有的'U'型结构在流量测量管内部有较大的阻流件，对管路产生较大的压力损失，如果流体里面有杂质，会容易造成管路堵塞；
3 、由于现有的超声波流量计在管体内仅仅测量单段的直线距离，所以，为提高检测精度，超声波检测元件需要靠近管体的轴心位置，这势必会对管体内液体的流动造成影响，加重了液体的扰流，并影响到测量的准确性。
后来又出现另一种超声波流量计，使超声波信号在管体内经过多次反射，通过对管体内多段直线距离进行检测，以提高检测的精度；
1 、随着信号反射台数量的增加，超声波信号的衰减也越来越大，如果在信号反射台上积存有灰尘或杂质，其信号的衰减将更为明显，影响到检测的可靠性；
2 、另一方面，随着信号反射台的数量的增加，考虑反射角度设置、安装位置的需要，有部分信号反射台需要设置在管体的上部或下部，如果信号反射台设于管体的上部，管体内的气泡会影响到超声波信号的传输，如果信号反射台设于管体的下部，信号反射台上积存的杂质也会影响到超声波信号的传输。
所以，就现有的超声波流量计而言，一方面，需要增加超声波信号所经过的直线段的数量来提高检测的精度，另一方面，又要减少超声波信号的反射次数，减少超声波信号在传输过程中的衰减与损失，但现的的超声波流量计无法解决该技术问题。
发明内容
基于此，本发明在于克服现有技术的缺陷，提供一种 超声波流量计及超声波流量计量方法，本发明可以更准确的对流经液体的流量进行检测，并且减少了信号的衰减，同时也降低了流量计的压力损失，可靠性也得到了提高。
其技术方案如下：
一种超声波流量计，包括管体，在管体上设有两个安装口，在两个安装口处分别设有超声波检测元件，在所述管体内设有信号反射台；垂直于管体轴线的面为横断面，两个超声波检测元件的轴线相对于所述管体的横断面均呈倾斜夹角。
下面对进一步技术方案进行说明：
所述管体包括外管及内管，内管套设于外管内，各信号反射台设于内管的内壁。
在所述外管上设有调位孔，在调位孔处设有调节钉，调节钉的端部抵压在所述内管上。
在所述内管的外壁设有调位环槽，该调位环槽所述调位钉相对应。
在所述安装口处设有安装座，该安装座包括安装端及固定端，安装端的轴线与所述管体的横断面平行，固定端的轴线与所述管体的横断面呈倾斜夹角，所述超声波检测元件设于安装座的固定端上。
还包括有卡环，该卡环包括压环及至少两个卡耳，所述安装座的安装端处设有至少两个固定槽，各固定槽包括周向的旋转槽及与旋转槽相通的卡入槽，卡耳与固定槽相对应；在卡环的外露侧设有至少两个拆装凹部。
在所述超声波检测元件上设有法兰，在所述卡环与法兰之间设有密封圈。
所述信号反射台仅为两个。
所述超声波检测元件位于所述管体的轴线的上方，两个所述信号反射台的中心低于所述管体的轴线，且两个所述信号反射台的中心分别位于所述管体的轴线的两侧。
所述超声波检测元件的垂线与所述横断面之间的夹角为15度至85度。
一种超声波流量计量方法，第一个超声波检测元件发出超声波信号，该超声波信号相对于所述管体的横断面均呈倾斜夹角，该超声波信号传输至信号反射台，并经信号反射台反射至第二个超声波检测元件，根据两个超声波检测元件之间的距离、超声波信号在两个超声波检测元件之间传输所用的时间，检测出单位时间内流经管体的液体的流量。
超声波检测元件可以是常用的超声波换能器，其作用是将电信号转换为超声波振动信号，也可以将超声波振动信号转换为电信号。
下面对前述技术方案的优点或原理进行说明：
1 、在检测过程中，第一个超声波检测元件所发出超声波信号后（该超声波信号不会与管体轴线平行或垂直），直接倾斜的进入管体内，超声波信号不需经过反射即进行第一次传输，当超声波振动信号经信号反射台反射后再进行第二次传输（或第三次传输），最终超声波信号由第二个超声波检测元件所接收；由于两个超声波检测元件均相对于管体倾斜，所以，至少减少了两次信号反射，减少了压力损失，可靠性提到了提高，并且超声波信号的传输路径并非与管体的轴线平行，也提高了检测的精度；
2 、管体由内管及外管组成，在安装时，先将信号反射台装于内管内，再将内管套入外管，安装更方便；
3 、信号反射台的作用是对超声波振动信号进行反射，以使超声波振动信号从第一个 超声波检测元件准确的传输至第二个超声波检测元件，所以，信号反射台的位置及角度非常重要，为保证信号反射台的正确安装，在外管上设有调位孔，通过调节钉可以调节内管的位置，进而对内管内的信号反射台进行调节，以保证信号反射台的角度，内管上调位环槽的设置，更避免了内管在外管内的滑动；
4 、由于超声波检测元件需要倾斜的安装在管体上，安装及加工难度大，在管体上设有安装座，安装座的固定端倾斜，可以方便加工，超声波检测元件的安装也更方便；
5 、在安装时，先将超声波检测元件装于安装座内，再装入卡环，通过工具抵入卡环的拆装凹部旋转，将卡环的卡耳卡入固定槽内，实现卡环的固定，在拆开时，反向旋转卡环即可退出卡环而将超声波检测取出，超声波检测元件的拆装更方便；
6 、超声波检测元件上的法兰与密封圈配合，避免出现液体泄漏，提高防水效果；
7 、由于超声波检测元件相对于管体倾斜，可以减少信号反射台的数量，其数量为两个时，超声波振动信号在管体内的传输路线为至少两段直线段，且信号衰减少，超声波流量计的检测效果最为理想；
8 、超声波检测元件位于管体轴线的上方，两个信号反射台的中心低于管体轴线且位于管体轴线的两侧而非中部，减少了管体内杂质在信号反射台的积存，提高了检测的可靠性；
9 、超声波检测元件的垂线与所述横断面之间的夹角为15度至85度，方便信号反射台的设置，通用性更强。
附图说明
图1是本发明实施例所述 超声波流量计的外形图；
图2是本发明实施例所述 超声波流量计的剖视图；
图3是本发明实施例所述 超声波流量计的端部视图；
图4是本发明实施例所述 超声波流量计的信号传输示意图；
图5是 本发明实施例所述超声波检测元件的安装结构图；
图6是 本发明实施例所述安装座的结构图；
图7是 本发明实施例所述卡环的结构图；
图8是图6的局部放大图；
附图标记说明：
10 、管体，11、内管，111、调位环槽，12、外管，111、安装口，112、安装座，1121、安装端，1122、固定端，1123、固定槽，11231、旋转槽，11232、卡入槽，113、卡环，1131、压环，1132、卡耳，1133、 拆装凹部 ，114、调位孔，115、调节钉，20、超声波检测元件，21、法兰，22、密封圈，30、信号反射台。
具体实施方式
下面对本发明的实施例进行详细说明：
如图1至图8所示， 一种超声波流量计，包括管体10，在管体10上设有两个安装口111，在两个安装口111处分别设有超声波检测元件20，在所述管体10内设有信号反射台30；垂直于管体10轴线的面为横断面，两个超声波检测元件20的轴线相对于所述管体10的横断面均呈倾斜夹角。
其中， 所述管体10包括外管12及内管11，内管11套设于外管12内，各信号反射台30设于内管11的内壁。在所述外管12上设有调位孔114，在调位孔114处设有调节钉115，调节钉115的端部抵压在所述内管11上。在所述内管11的外壁设有调位环槽111，该调位环槽111所述调位钉相对应。
在所述安装口111处设有安装座112，该安装座112包括安装端1121及固定端1122，安装端1121的轴线与所述管体10的横断面平行，固定端1122的轴线与所述管体10的横断面呈倾斜夹角，所述超声波检测元件20设于安装座112的固定端1122上。还包括有卡环113，该卡环113包括压环1131及至少两个卡耳1132，所述安装座112的安装端1121处设有至少两个固定槽1123，各固定槽1123包括周向的旋转槽11231及与旋转槽11231相通的卡入槽11232，卡耳1132与固定槽1123相对应；在卡环113的外露侧设有至少两个拆装凹部1133。在所述超声波检测元件20上设有法兰21，在所述卡环113与法兰21之间设有密封圈22。
所述信号反射台30仅为两个。所述超声波检测元件20位于所述管体10的轴线的上方，两个所述信号反射台30的中心低于所述管体10的轴线，且两个所述信号反射台30的中心分别位于所述管体10的轴线的两侧。所述超声波检测元件20的垂线与所述横断面之间的夹角为15度至85度。
本实施例中，超声波流量计量方法如下：第一个超声波检测元件20发出超声波信号，该超声波信号相对于所述管体10的横断面均呈倾斜夹角，该超声波信号传输至信号反射台30，并经信号反射台30反射至第二个超声波检测元件20，根据两个超声波检测元件20之间的距离、超声波信号在两个超声波检测元件20之间传输所用的时间，检测出单位时间内流经管体10的液体的流量。
本实施例具有如下优点：
1 、在检测过程中，第一个超声波检测元件20所发出超声波信号后（该超声波信号不会与管体10轴线平行或垂直），直接倾斜的进入管体10内，超声波信号不需经过反射即进行第一次传输，当超声波振动信号经信号反射台30反射后再进行第二次传输（或第三次传输），最终超声波信号由第二个超声波检测元件20所接收；由于两个超声波检测元件20均相对于管体10倾斜，所以，至少减少了两次信号反射，减少了压力损失，可靠性提到了提高，并且超声波信号的传输路径并非与管体10的轴线平行，也提高了检测的精度；
2 、管体10由内管11及外管12组成，在安装时，先将信号反射台30装于内管11内，再将内管11套入外管12，安装更方便；
3 、信号反射台30的作用是对超声波振动信号进行反射，以使超声波振动信号从第一个 超声波检测元件20准确的传输至第二个超声波检测元件20，所以，信号反射台30的位置及角度非常重要，为保证信号反射台30的正确安装，在外管12上设有调位孔114，通过调节钉115可以调节内管11的位置，进而对内管11内的信号反射台30进行调节，以保证信号反射台30的角度，内管11上调位环槽111的设置，更避免了内管11在外管12内的滑动；
4 、由于超声波检测元件20需要倾斜的安装在管体10上，安装及加工难度大，在管体10上设有安装座112，安装座112的固定端1122倾斜，可以方便加工，超声波检测元件20的安装也更方便；
5 、在安装时，先将超声波检测元件20装于安装座112内，再装入卡环113，通过工具抵入卡环113的拆装凹部1133旋转，将卡环113的卡耳1132卡入固定槽1123内，实现卡环113的固定，在拆开时，反向旋转卡环113即可退出卡环113而将超声波检测取出，超声波检测元件20的拆装更方便；
6 、超声波检测元件20上的法兰21与密封圈22配合，避免出现液体泄漏，提高防水效果；
7 、由于超声波检测元件20相对于管体10倾斜，可以减少信号反射台30的数量，其数量为两个时，超声波振动信号在管体10内的传输路线为至少两段直线段，且信号衰减少，超声波流量计的检测效果最为理想；
8 、超声波检测元件20位于管体10轴线的上方，两个信号反射台30的中心低于管体10轴线且位于管体10轴线的两侧而非中部，减少了管体10内杂质在信号反射台30的积存，提高了检测的可靠性；
9 、超声波检测元件20的垂线与所述横断面之间的夹角为15度至85度，方便信号反射台30的设置，通用性更强。
以上所述实施例仅表达了本发明的具体实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。

Claims (10)

  1. 一种超声波流量计，包括管体，在管体上设有两个安装口，在两个安装口处分别设有超声波检测元件，在所述管体内设有信号反射台；其特征在于，垂直于管体轴线的面为横断面，两个超声波检测元件的轴线相对于所述管体的横断面均呈倾斜夹角。
  2. 如权利要求1所述超声波流量计，其特征在于，所述管体包括外管及内管，内管套设于外管内，各信号反射台设于内管的内壁。
  3. 如权利要求2所述超声波流量计，其特征在于，在所述外管上设有调位孔，在调位孔处设有调节钉，调节钉的端部抵压在所述内管上。
  4. 如权利要求3所述超声波流量计，其特征在于，在所述内管的外壁设有调位环槽，该调位环槽所述调位钉相对应。
  5. 如权利要求1至4中任一项所述超声波流量计，其特征在于，在所述安装口处设有安装座，该安装座包括安装端及固定端，安装端的轴线与所述管体的横断面平行，固定端的轴线与所述管体的横断面呈倾斜夹角，所述超声波检测元件设于安装座的固定端上。
  6. 如权利要求5所述超声波流量计，其特征在于，还包括有卡环，该卡环包括压环及至少两个卡耳，所述安装座的安装端处设有至少两个固定槽，各固定槽包括周向的旋转槽及与旋转槽相通的卡入槽，卡耳与固定槽相对应；在卡环的外露侧设有至少两个拆装凹部。
  7. 如权利要求1至4中任一项所述超声波流量计，其特征在于，所述信号反射台仅为两个。
  8. 如权利要求5所述超声波流量计，其特征在于，所述超声波检测元件位于所述管体的轴线的上方，两个所述信号反射台的中心低于所述管体的轴线，且两个所述信号反射台的中心分别位于所述管体的轴线的两侧。
  9. 如权利要求5所述超声波流量计，其特征在于，所述超声波检测元件的垂线与所述横断面之间的夹角为15度至85度。
  10. 一种超声波流量计量方法，其特征在于，第一个超声波检测元件发出超声波信号，该超声波信号相对于所述管体的横断面均呈倾斜夹角，该超声波信号传输至信号反射台，并经信号反射台反射至第二个超声波检测元件，根据两个超声波检测元件之间的距离、超声波信号在两个超声波检测元件之间传输所用的时间，检测出单位时间内流经管体的液体的流量。
PCT/CN2012/078915 2012-06-13 2012-07-20 超声波流量计及超声波流量计量方法 WO2013185406A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12772186.8A EP2722652B8 (en) 2012-06-13 2012-07-20 Ultrasonic flowmeter and ultrasonic flow measuring method
ES12772186.8T ES2686022T3 (es) 2012-06-13 2012-07-20 Medidor ultrasónico de flujo y método de medición ultrasónico del flujo

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210194469.4 2012-06-13
CN201210194469.4A CN102706399B (zh) 2012-06-13 2012-06-13 超声波流量计及超声波流量计量方法

Publications (1)

Publication Number Publication Date
WO2013185406A1 true WO2013185406A1 (zh) 2013-12-19

Family

ID=46899350

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/078915 WO2013185406A1 (zh) 2012-06-13 2012-07-20 超声波流量计及超声波流量计量方法

Country Status (5)

Country Link
EP (1) EP2722652B8 (zh)
CN (1) CN102706399B (zh)
DE (1) DE202012104552U1 (zh)
ES (1) ES2686022T3 (zh)
WO (1) WO2013185406A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106949993A (zh) * 2017-05-23 2017-07-14 安徽汉威电子有限公司 可观测的限定调节式超声波热量表
CN106989786A (zh) * 2017-05-23 2017-07-28 安徽汉威电子有限公司 可观测的滑动微调式超声波热量表
CN107219024A (zh) * 2017-05-23 2017-09-29 安徽汉威电子有限公司 超声波热量表
CN107300431A (zh) * 2017-05-23 2017-10-27 安徽汉威电子有限公司 滑动微调式超声波热量表
CN112129362A (zh) * 2019-06-25 2020-12-25 西克工程有限公司 超声波流量计

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103323064A (zh) * 2013-05-31 2013-09-25 合肥瑞纳表计有限公司 超声波多点反射流量计
DE102013114744A1 (de) * 2013-12-20 2015-06-25 Endress + Hauser Flowtec Ag Messanordnung und Ultraschall-Durchflussmessgerät
DE102014010375B4 (de) * 2014-07-12 2021-06-17 Diehl Metering Gmbh Ultraschallwandleranordnung sowie Ultraschallwasserzähler
EP4089374A1 (en) * 2014-07-21 2022-11-16 Apator Miitors ApS Flow conduit insert for an ultrasonic flowmeter
CN106441471A (zh) * 2016-10-14 2017-02-22 青岛海威茨仪表有限公司 一种大口径超声波流量计
CN112525276A (zh) * 2020-12-14 2021-03-19 北京化工大学 一种基于激光光路的外夹超声流量计安装误差模拟装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461403A1 (de) * 1974-12-24 1976-07-01 Joseph Baumoel Digitales stroemungsmessgeraet
CN1478194A (zh) * 2000-11-30 2004-02-25 兰迪斯+Gyr有限公司 流量计
CN101084415A (zh) * 2004-12-21 2007-12-05 罗伯特·博世有限公司 具有压力传感器的超声波流量计
CN201210067Y (zh) * 2008-05-08 2009-03-18 申思 小管径管道燃气流量超声测量结构
CN201555623U (zh) * 2009-12-17 2010-08-18 重庆市伟岸测器制造有限公司 一种超声节流装置
CN201589631U (zh) * 2009-12-16 2010-09-22 天津市光大伟业计量仪表技术有限公司 利用流量管内壁进行声波反射的超声波流量管
CN101858762A (zh) * 2010-05-19 2010-10-13 邓鲁坚 管壁反射式超声波流量传感器
CN201811811U (zh) * 2010-11-02 2011-04-27 石家庄长通电器有限公司 一种超声波热量表换能器测量管段
CN102288236A (zh) * 2011-05-06 2011-12-21 陈贤在 一种反射式超声波热量表的流量传感器
CN202092691U (zh) * 2011-05-06 2011-12-28 陈贤在 一种反射式超声波热量表的流量传感器
CN202209967U (zh) * 2011-08-02 2012-05-02 蒋韵坚 一种可拆卸反射块的v形反射超声波热量表的流量传感器
CN102435231A (zh) * 2010-09-08 2012-05-02 罗伯特·博世有限公司 用于检测流体介质的特性的流量计

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544456A1 (de) * 1985-12-16 1987-06-19 Siemens Ag Durchflussmessgeraet in ultraschalltechnik
NL8602690A (nl) * 1986-10-27 1988-05-16 Servex Bv Inrichting voor het bepalen van de stromingssnelheid van een medium in een cylindrische leiding.
DE59200021D1 (de) * 1992-03-11 1993-12-02 Siemens Ag Durchflussmesseinrichtung für flüssige Medien nach dem Ultraschall-Laufzeitprinzip.
US7194919B2 (en) * 2003-05-29 2007-03-27 Transonic Systems, Inc. Acoustically coupled ultrasonic transit time flow sensors
DE10327076B3 (de) * 2003-06-13 2005-04-07 Hydrometer Gmbh Ultraschallzähler zur Bestimmung der Durchflussmenge eines strömenden Mediums
CN100578162C (zh) * 2008-05-22 2010-01-06 谭文胜 一种超声波流量测量装置
CN201622086U (zh) * 2009-11-12 2010-11-03 中环天仪股份有限公司 超声波流量仪表的传感器装置
CN201740552U (zh) * 2010-06-10 2011-02-09 重庆市伟岸测器制造股份有限公司 一种管壁反射式超声流量传感器
CN102062623B (zh) * 2010-11-09 2012-06-20 郭荣岭 消除零点误差的超声波流量计
CN202693050U (zh) * 2012-06-13 2013-01-23 广州柏诚智能科技有限公司 超声波流量计

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461403A1 (de) * 1974-12-24 1976-07-01 Joseph Baumoel Digitales stroemungsmessgeraet
CN1478194A (zh) * 2000-11-30 2004-02-25 兰迪斯+Gyr有限公司 流量计
CN101084415A (zh) * 2004-12-21 2007-12-05 罗伯特·博世有限公司 具有压力传感器的超声波流量计
CN201210067Y (zh) * 2008-05-08 2009-03-18 申思 小管径管道燃气流量超声测量结构
CN201589631U (zh) * 2009-12-16 2010-09-22 天津市光大伟业计量仪表技术有限公司 利用流量管内壁进行声波反射的超声波流量管
CN201555623U (zh) * 2009-12-17 2010-08-18 重庆市伟岸测器制造有限公司 一种超声节流装置
CN101858762A (zh) * 2010-05-19 2010-10-13 邓鲁坚 管壁反射式超声波流量传感器
CN102435231A (zh) * 2010-09-08 2012-05-02 罗伯特·博世有限公司 用于检测流体介质的特性的流量计
CN201811811U (zh) * 2010-11-02 2011-04-27 石家庄长通电器有限公司 一种超声波热量表换能器测量管段
CN102288236A (zh) * 2011-05-06 2011-12-21 陈贤在 一种反射式超声波热量表的流量传感器
CN202092691U (zh) * 2011-05-06 2011-12-28 陈贤在 一种反射式超声波热量表的流量传感器
CN202209967U (zh) * 2011-08-02 2012-05-02 蒋韵坚 一种可拆卸反射块的v形反射超声波热量表的流量传感器

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106949993A (zh) * 2017-05-23 2017-07-14 安徽汉威电子有限公司 可观测的限定调节式超声波热量表
CN106989786A (zh) * 2017-05-23 2017-07-28 安徽汉威电子有限公司 可观测的滑动微调式超声波热量表
CN107219024A (zh) * 2017-05-23 2017-09-29 安徽汉威电子有限公司 超声波热量表
CN107300431A (zh) * 2017-05-23 2017-10-27 安徽汉威电子有限公司 滑动微调式超声波热量表
CN107219024B (zh) * 2017-05-23 2023-08-08 安徽汉威电子有限公司 超声波热量表
CN107300431B (zh) * 2017-05-23 2023-08-29 安徽汉威电子有限公司 滑动微调式超声波热量表
CN106989786B (zh) * 2017-05-23 2023-09-01 安徽汉威电子有限公司 可观测的滑动微调式超声波热量表
CN106949993B (zh) * 2017-05-23 2023-10-27 安徽汉威电子有限公司 可观测的限定调节式超声波热量表
CN112129362A (zh) * 2019-06-25 2020-12-25 西克工程有限公司 超声波流量计

Also Published As

Publication number Publication date
CN102706399B (zh) 2018-05-22
EP2722652B1 (en) 2018-06-06
ES2686022T3 (es) 2018-10-16
EP2722652B8 (en) 2018-12-19
CN102706399A (zh) 2012-10-03
EP2722652A1 (en) 2014-04-23
DE202012104552U1 (de) 2013-02-04
EP2722652A4 (en) 2015-04-08

Similar Documents

Publication Publication Date Title
WO2013185406A1 (zh) 超声波流量计及超声波流量计量方法
US20220276082A1 (en) Flow sensor devices and systems
JP5728639B2 (ja) 超音波流量計
CN107505016B (zh) 气体流量计量气室及气体流量计量表
CN111272240B (zh) 一种内置式斜反射多声道超声波流量测量模块及流量计
CN114993395A (zh) 一种可拆卸式超声波流量计管道及换能器安装结构
CN219641059U (zh) 一种用于机动车检测的可进行校准对接的流量计
JP2018077066A (ja) サドル型超音波流速計及び流速計測方法
CN211717528U (zh) 一种内置式斜反射多声道超声波流量测量模块及流量计
CN213067758U (zh) 一种便于气体整流的超声波流量计
CN105222838B (zh) 流量计壳体及流量计
CN114543950A (zh) 基于多声道超声波水表正交测量方法及多声道超声波水表
CN220269160U (zh) 一种供水管道水压检测装置
CN214308937U (zh) 一种超声波气体流量计
CN217132272U (zh) 一种防干扰的电磁流量计
CN214251110U (zh) 气体流量检测装置
CN220472720U (zh) 一种电磁流量计用阻磁保护装置
CN219694249U (zh) 一种信号反射装置
CN220120176U (zh) 便捷安装底座及含有其的能源计量监控装置
CN219179433U (zh) 一种用于水阀的检测装置
KR102575886B1 (ko) 고온 고압용 밸브의 미세누설 감지센서모듈
CN220136407U (zh) 一种涡街流量计
CN218883695U (zh) 一种高温密封气体泄漏量测试装置
CN219735610U (zh) 一种加热体结构
CN210603434U (zh) 一种便于固定的流量测量仪

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2012772186

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12772186

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE