阅读说明：本技术 一种交叉式超声测温管段体结构及方法 (Cross type ultrasonic temperature measurement pipe section structure and method ) 是由 张力新 严学智 冯宪奎 朱向娜 李德海 于 2021-10-19 设计创作，主要内容包括：本发明涉及一种交叉式超声测温管段体结构及方法,属于超声测流、测温技术领域。技术方案是：所述探头安装座(3)设有安装孔,安装孔中心线(6)与水平线(7)之间有夹角,相互不平行；上游侧探头的数量与下游侧探头的数量相等；一个上游侧探头在其波束宽度范围内与两个下游侧探头匹配,一个下游侧探头在其波束宽度范围内与两个上游侧探头匹配,发射和接收超声波,形成多个交叉布置的超声测量声路。本发明有益效果：通过改变探头安装孔与水平线之间的角度,使得一个探头在其波束宽度范围内与相对应的两个探头匹配,实现了同一管段体上有效声路数大于等于该管段体上探头数量总和,大大减少了探头的数量,使得小口径上也可以实现更多声路的测量。(The invention relates to a cross type ultrasonic temperature measurement pipe section structure and a method, belonging to the technical field of ultrasonic flow measurement and temperature measurement. The technical scheme is as follows: the probe mounting seat (3) is provided with a mounting hole, and an included angle is formed between the central line (6) of the mounting hole and the horizontal line (7) and is not parallel to each other; the number of the upstream side probes is equal to that of the downstream side probes; one upstream side probe is matched with the two downstream side probes in the beam width range, and the other downstream side probe is matched with the two upstream side probes in the beam width range, transmits and receives ultrasonic waves and forms a plurality of ultrasonic measurement sound paths which are arranged in a crossed mode. The invention has the beneficial effects that: by changing the angle between the probe mounting hole and the horizontal line, one probe is matched with two corresponding probes in the wave beam width range, the sum of the number of the probes on the same pipe section body is greater than or equal to the number of the probes on the pipe section body, the number of the probes is greatly reduced, and the measurement of more sound paths on a small caliber can be realized.)

1. The utility model provides a cross-type supersound temperature measurement pipe section body structure which characterized in that: comprises a pipe section body (1), a probe mounting seat (3), a probe (2), a temperature sensor (5) and a temperature sensor mounting seat (4); the pipe section body (1) is provided with a probe mounting seat (3) and a temperature sensor mounting seat (4), and the probe (2) and the temperature sensor (5) are respectively mounted on the probe mounting seat (3) and the temperature sensor mounting seat (4); the probe mounting seat (3) is provided with a mounting hole, and an included angle is formed between the central line (6) of the mounting hole and the horizontal line (7) and is not parallel to each other; the number of the probes is multiple, and the probes are divided into upstream side probes and downstream side probes according to arrangement positions; the number of the upstream side probes is equal to that of the downstream side probes; one upstream side probe is matched with the two downstream side probes in the beam width range, and the other downstream side probe is matched with the two upstream side probes in the beam width range, transmits and receives ultrasonic waves and forms a plurality of ultrasonic measurement sound paths which are arranged in a crossed mode.

2. The cross-type ultrasonic temperature measuring tube segment structure of claim 1, wherein: the probe mounting seats (3) are integrated, each probe mounting seat (3) is provided with two mounting holes, and the two mounting holes are symmetrically arranged on two sides of a horizontal line (7).

3. The cross-type ultrasonic temperature measuring tube segment structure according to claim 1 or 2, wherein: the central line (6) of the mounting hole of the probe mounting seat forms an alpha angle with the horizontal line (7), the alpha range is 0-90 degrees, and 0 degree is excluded.

4. The cross-type ultrasonic temperature measuring tube segment structure according to claim 1 or 2, wherein: the plurality of probes (2) are arranged on the same section of the pipe section body (1), each probe (2) on the pipe section body is simplified into a point, each point of the upstream side probe forms a polygon X, each point of the downstream side probe forms a polygon Y, a plane Z is arranged at the position where the distances between the polygon X and the polygon Y are equal, and the polygon X and the polygon Y are completely symmetrical relative to the plane Z.

5. The cross-type ultrasonic temperature measuring tube segment structure of claim 4, wherein: the ultrasonic reflection point emitted by each probe on the upstream side is on the midline between the corresponding two probes on the downstream side, so that one probe on the upstream side is matched with the corresponding two probes on the downstream side within the beam width range of the probe; the ultrasonic reflection point emitted by each probe at the downstream side is on the midline between the corresponding two probes at the upstream side, so that one probe at the downstream side is matched with the corresponding two probes at the upstream side in the beam width range.

6. The cross-type ultrasonic temperature measuring tube segment structure of claim 1, wherein: the temperature sensor mounting seats (4) are mounted on the downstream side of the pipe section body (1), and the mounting positions of the temperature sensor mounting seats are above the intersection points of the axes of all the probe mounting seats (3).

7. An assembling method of a cross type ultrasonic temperature measuring pipe section structure is characterized by comprising the following steps:

the pipe section body (1) is respectively provided with a probe mounting seat mounting hole and a temperature sensor mounting seat mounting hole;

the probe mounting seat (3) is provided with a mounting hole of the probe, and the central line (6) of the mounting hole and the horizontal line (7) form an included angle which is not parallel to each other;

welding the probe mounting seat (3) and the temperature sensor mounting seat (4) in a probe mounting seat mounting hole and a temperature sensor mounting seat mounting hole of the pipe section body (1);

the probe (2) and the temperature sensor (5) are respectively arranged in the probe mounting seat (3) and the temperature sensor mounting seat (4); the number of the probe mounting seats (3) is multiple, the number of the probes is multiple, and the probes are divided into an upstream side probe and a downstream side probe according to arrangement positions; the number of the upstream side probes is equal to that of the downstream side probes; an upstream side probe is matched with two downstream side probes in the range of the beam width of the upstream side probe, and a downstream side probe is matched with the two upstream side probes in the range of the beam width of the downstream side probe, transmits and receives ultrasonic waves and forms a plurality of ultrasonic measurement sound paths which are arranged in a crossed mode;

the probe mounting seat (3) is provided with two mounting holes which are symmetrically arranged at two sides of a horizontal line (7);

the central line (6) of the mounting hole of the probe mounting seat and a horizontal line (7) form an angle alpha, the range of alpha is 0-90 degrees, and the angle alpha is not 0 degree;

the temperature sensor mounting seats (4) are mounted on the downstream side of the pipe section body (1), and the mounting positions of the temperature sensor mounting seats are above the intersection points of the axes of all the probe mounting seats (3).

8. The assembly method of the cross-type ultrasonic temperature measurement pipe section body structure according to claim 7, wherein the assembly method comprises the following steps: the probe mounting seat (3) is provided with two mounting holes which are symmetrically arranged on two sides of a horizontal line (7).

9. The method for assembling the crossed ultrasonic temperature measurement pipe section structure according to claim 7 or 8, wherein the method comprises the following steps: the central line (6) of the mounting hole of the probe mounting seat forms an alpha angle with the horizontal line (7), the alpha range is 0-90 degrees, and 0 degree is excluded.

10. The method for assembling the crossed ultrasonic temperature measurement pipe section structure according to claim 7 or 8, wherein the method comprises the following steps: the temperature sensor mounting seats (4) are mounted on the downstream side of the pipe section body (1), and the mounting positions of the temperature sensor mounting seats are above the intersection points of the axes of all the probe mounting seats (3).

Technical Field

The invention relates to a cross-type ultrasonic temperature measurement pipe section structure and a cross-type ultrasonic temperature measurement method, which are used for an ultrasonic flowmeter (including a liquid and gas flowmeter), an ultrasonic water meter, an ultrasonic heat meter and the like, and belong to the technical field of ultrasonic flow measurement and temperature measurement.

Background

At present, the measuring pipe section of the traditional ultrasonic flowmeter adopts a structural form that a probe mounting hole is a straight hole parallel to a horizontal plane and is transmitted by one-to-one sound paths. To meet the requirement of improving the measurement accuracy, the only available techniques are: the number of sound channels is increased, the measuring instrument is converted into a plurality of sound channels from one sound channel, and the number of the sound channels is in proportion to the number of the probes and is 1:2, so that the number of the probes is increased as the number of the sound channels is increased. The problems of the prior art are as follows: to improve measurement accuracy, an ultrasonic flow meter may be matched to a plurality of ultrasonic probes and must be installed in the same pipe. Therefore, the pipe section with the ultrasonic probe is more and more complex in design, higher in machining precision, higher in manufacturing cost and higher in assembly condition, the number of the sound channels is limited by the pipe diameter of the pipe body, if the ultrasonic probes are the same in size and the diameter of the installed pipe section is smaller, more probes cannot be installed, and therefore multi-sound-path measurement cannot be achieved.

Disclosure of Invention

The invention aims to provide a cross-type ultrasonic temperature measurement pipe section structure and a cross-type ultrasonic temperature measurement method, wherein one probe is matched with two corresponding probes within the wave beam width range by changing the angle between a probe mounting hole and a horizontal line, so that the sum of the number of effective sound paths on the same pipe section is more than or equal to that of the probes on the pipe section, the number of the probes is greatly reduced, the measurement of more sound paths on a small caliber can be realized, and the problems in the background technology are solved.

The technical scheme of the invention is as follows:

a cross-type ultrasonic temperature measurement pipe section structure comprises a pipe section body, a probe mounting seat, a probe, a temperature sensor and a temperature sensor mounting seat; the pipe section body is provided with a probe mounting seat and a temperature sensor mounting seat, and the probe and the temperature sensor are respectively mounted on the probe mounting seat and the temperature sensor mounting seat; the probe mounting seat is provided with a mounting hole, and the central line of the mounting hole and the horizontal line form an included angle which is not parallel to each other; the number of the probes is multiple, and the probes are divided into upstream side probes and downstream side probes according to arrangement positions; the number of the upstream side probes is equal to that of the downstream side probes; one upstream side probe is matched with the two downstream side probes in the beam width range, and the other downstream side probe is matched with the two upstream side probes in the beam width range, transmits and receives ultrasonic waves and forms a plurality of ultrasonic measurement sound paths which are arranged in a crossed mode.

The probe mounting seats are integrated, each probe mounting seat is provided with two mounting holes, and the two mounting holes are symmetrically arranged on two sides of a horizontal line.

The central line of the mounting hole of the probe mounting seat forms an alpha angle with the horizontal line, the alpha range is 0-90 degrees, and 0 degree is excluded.

The plurality of probes are arranged on the same cross section of the pipe section body, each probe on the pipe section body is simplified into one point, each point of the probe on the upstream side forms a polygon X, each point of the probe on the downstream side forms a polygon Y, a plane Z is arranged at the position where the distances between the polygon X and the polygon Y are equal, and the polygon X and the polygon Y are completely symmetrical relative to the plane Z.

The ultrasonic reflection point emitted by each probe on the upstream side is on the midline between the corresponding two probes on the downstream side, so that one probe on the upstream side is matched with the corresponding two probes on the downstream side within the beam width range of the probe; the ultrasonic reflection point emitted by each probe at the downstream side is on the midline between the corresponding two probes at the upstream side, so that one probe at the downstream side is matched with the corresponding two probes at the upstream side in the beam width range.

The temperature sensor mounting seat is mounted on the downstream side of the pipe section body, and the mounting position of the temperature sensor mounting seat is above the intersection point of the axes of all the probe mounting seats.

An assembling method of a cross-type ultrasonic temperature measuring pipe section structure comprises the following steps:

the pipe section body is respectively provided with a probe mounting seat mounting hole and a temperature sensor mounting seat mounting hole;

the probe mounting seat is provided with a mounting hole of the probe, and the central line of the mounting hole and the horizontal line form an included angle which is not parallel to each other;

welding a probe mounting seat and a temperature sensor mounting seat in a probe mounting seat mounting hole and a temperature sensor mounting seat mounting hole of the pipe section body;

respectively installing a probe and a temperature sensor in a probe installation seat and a temperature sensor installation seat; the number of the probe mounting seats is multiple, the number of the probes is multiple, and the probes are divided into upstream side probes and downstream side probes according to arrangement positions; the number of the upstream side probes is equal to that of the downstream side probes; one upstream side probe is matched with the two downstream side probes in the beam width range, and the other downstream side probe is matched with the two upstream side probes in the beam width range, transmits and receives ultrasonic waves and forms a plurality of ultrasonic measurement sound paths which are arranged in a crossed mode.

The probe mounting seat is provided with two mounting holes which are symmetrically arranged on two sides of a horizontal line.

The central line of the mounting hole of the probe mounting seat forms an alpha angle with the horizontal line, the alpha range is 0-90 degrees, and 0 degree is excluded.

The temperature sensor mounting seat is mounted on the downstream side of the pipe section body, and the mounting position of the temperature sensor mounting seat is above the intersection point of the axes of all the probe mounting seats.

The invention has the beneficial effects that: by changing the angle between the probe mounting hole and the horizontal line, one probe is matched with two corresponding probes in the wave beam width range, the sum of the number of the probes on the same pipe section body is greater than or equal to the number of the probes on the pipe section body, the number of the probes is greatly reduced, and the measurement of more sound paths on a small caliber can be realized.

Drawings

FIG. 1 is a schematic view of the assembled structure of the present invention;

FIG. 2 is a schematic external view of a probe mount of the present invention;

FIG. 3 is a schematic diagram of the position relationship of each probe observed along the axial line direction of the pipe section after each probe is simplified into a point according to the present invention;

FIG. 4 is a schematic diagram of a prior art single acoustic path propagation approach;

FIG. 5 is a schematic diagram of the propagation of the acoustic path of the present invention;

FIG. 6 is a schematic diagram of the sound path propagation structure of the present invention;

FIG. 7 is a schematic view of the internal structure of the probe mounting base according to the present invention;

FIG. 8 is a schematic view of the internal structure of a prior art probe mount;

in the figure: the device comprises a pipe section body 1, a probe 2, a probe mounting seat 3, a temperature sensor mounting seat 4, a temperature sensor 5, a mounting hole central line 6 and a horizontal line 7.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings.

A cross-type ultrasonic temperature measurement pipe section structure comprises a pipe section body 1, a probe mounting seat 3, a probe 2, a temperature sensor 5 and a temperature sensor mounting seat 4; the pipe section body 1 is provided with a probe mounting seat 3 and a temperature sensor mounting seat 4, and the probe 2 and the temperature sensor 5 are respectively mounted on the probe mounting seat 3 and the temperature sensor mounting seat 4; the probe mounting base 3 is provided with a mounting hole, and an included angle is formed between the central line 6 of the mounting hole and the horizontal line 7 and is not parallel to each other; the number of the probes is multiple, and the probes are divided into upstream side probes and downstream side probes according to arrangement positions; the number of the upstream side probes is equal to that of the downstream side probes; one upstream side probe is matched with the two downstream side probes in the beam width range, and the other downstream side probe is matched with the two upstream side probes in the beam width range, transmits and receives ultrasonic waves and forms a plurality of ultrasonic measurement sound paths which are arranged in a crossed mode.

The probe mounting seats 3 are integrated mounting seats, each probe mounting seat 3 is provided with two mounting holes, and the two mounting holes are symmetrically arranged on two sides of the horizontal line 7.

The central line 6 of the mounting hole of the probe mounting seat forms an angle alpha with the horizontal line 7, the range of alpha is 0-90 degrees, and 0 degree is excluded.

The plurality of the probes 2 are arranged on the same cross section of the pipe section body 1, each probe 2 on the pipe section body is simplified into one point, each point of the probe on the upstream side forms a polygon X, each point of the probe on the downstream side forms a polygon Y, a plane Z is arranged at the position where the distances between the polygon X and the polygon Y are equal, and the polygon X and the polygon Y are completely symmetrical relative to the plane Z.

The ultrasonic reflection point emitted by each probe on the upstream side is on the midline between the corresponding two probes on the downstream side, so that one probe on the upstream side is matched with the corresponding two probes on the downstream side within the beam width range of the probe; the ultrasonic reflection point emitted by each probe at the downstream side is on the midline between the corresponding two probes at the upstream side, so that one probe at the downstream side is matched with the corresponding two probes at the upstream side in the beam width range.

The temperature sensor mounting seat 4 is mounted on the downstream side of the pipe section body 1, and the mounting position thereof is above the intersection point of the axes of all the probe mounting seats 3.

An assembling method of a cross-type ultrasonic temperature measuring pipe section structure comprises the following steps:

the pipe section body 1 is respectively provided with a probe mounting seat mounting hole and a temperature sensor mounting seat mounting hole;

the probe mounting base 3 is provided with a mounting hole of the probe, and the central line 6 of the mounting hole and the horizontal line 7 form an included angle which is not parallel to each other;

welding the probe mounting seat 3 and the temperature sensor mounting seat 4 in a probe mounting seat mounting hole and a temperature sensor mounting seat mounting hole of the pipe section body 1;

the probe 2 and the temperature sensor 5 are respectively arranged in the probe mounting seat 3 and the temperature sensor mounting seat 4; the number of the probe installation seats 3 is multiple, the number of the probes is multiple, and the probes are divided into upstream side probes and downstream side probes according to arrangement positions; the number of the upstream side probes is equal to that of the downstream side probes; one upstream side probe is matched with the two downstream side probes in the beam width range, and the other downstream side probe is matched with the two upstream side probes in the beam width range, transmits and receives ultrasonic waves and forms a plurality of ultrasonic measurement sound paths which are arranged in a crossed mode.

The probe mounting seat 3 is provided with two mounting holes which are symmetrically arranged on two sides of a horizontal line 7.

The central line 6 of the mounting hole of the probe mounting seat forms an angle alpha with the horizontal line 7, the range of alpha is 0-90 degrees, and 0 degree is excluded.

The temperature sensor mounting seat 4 is mounted on the downstream side of the pipe section body 1, and the mounting position thereof is above the intersection point of the axes of all the probe mounting seats 3.

The prior art will be described with reference to fig. 4 and 8, taking 2 sound paths and 4 probes as examples. 4 probes are arranged on a pipe section body of the ultrasonic flow measurement equipment, the probes are divided into an upstream side probe and a downstream side probe according to arrangement positions on the pipe section body, one upstream side probe is matched with one downstream side probe within the beam width range of the upstream side probe and is in one-to-one correspondence, the 4 upstream side probes are matched with the 4 downstream side probes, ultrasonic waves are transmitted and received, and 2 ultrasonic measurement sound paths are formed.

The embodiment of the invention refers to the attached figures 1, 2, 3, 5, 6 and 7. The invention has the advantages of sound path propagation structure schematic diagram, 4 sound paths and 4 probes.

4 probes are arranged on the pipe section body, the probes are divided into an upstream side probe and a downstream side probe according to arrangement positions on the pipe section body, one upstream side probe is matched with the two downstream side probes in the wave beam width range of the upstream side probe, one downstream side probe is matched with the two upstream side probes in the wave beam width range of the downstream side probe, the 4 upstream side probes are matched with the 4 downstream side probes, ultrasonic waves are transmitted and received, 4 ultrasonic measurement sound paths are formed, and the sum of the number of the probes on the pipe section body is equal to the sum of the number of the probes on the pipe section body.

The probe mounting seats 3 are integrated mounting seats, each probe mounting seat 3 is provided with two mounting holes, and the two mounting holes are symmetrically arranged on two sides of the horizontal line 7. The central line 6 of the mounting hole of the probe mounting seat forms an angle alpha with the horizontal line 7, and the angle alpha is 20 degrees.