Tool for accurately installing plug-in type gas ultrasonic sensor on line

Abstract

The utility model relates to a tool for accurately installing a plug-in type gas ultrasonic sensor on line, and belongs to the technical field of gas ultrasonic flow sensors. According to the technical scheme, a tool body is an assembly formed by welding an inclined supporting plate and supporting legs, the supporting legs are fixed to the bottom of the rear end of the inclined supporting plate, the bottoms of the supporting legs are attached to the outer wall of the pipeline, a fastening steel belt penetrates through steel belt penetrating holes in the supporting legs and then is wound around the pipeline, and the tool body is fastened to the pipeline; a through hole is formed in the inclined supporting plate, middle section external threads are arranged on the outer wall of the upper portion of the middle section, middle section internal threads are arranged on the inner wall of the lower portion of the middle section, upper external threads of the base are connected with the middle section internal threads of the middle section, the bottom of the base is attached to the outer wall of a pipeline, and the upper middle section external threads of the middle section penetrate through the through hole to be in threaded connection with the locking nut. And the base is tightly pressed at the opening position of the pipeline. The base is easy to align and is not easy to deform during welding, so that the mounting angle and position of the sensor are more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tool for online accurate installation of plug-in type gas ultrasonic sensor and belongs to the technical field of gas ultrasonic flow sensor. BACKGROUND

[0002] At present, the gas ultrasonic flow sensor is mainly installed in plug-in type, and after the installation of the gas ultrasonic flow sensor is completed, the axis of the gas ultrasonic flow sensor and the axis of the on-site pipeline have a certain oblique angle. When the gas ultrasonic flow sensor is installed, a base needs to be welded on the on-site pipeline first, and whether the installation angle and position of the base are accurate directly affects the installation quality of the flow sensor. The upper part of the base is a regular circular body, the bottom part is an irregular circular body, and the end face of the bottom part is a slant ring surface with an arc, and the arc of the slant ring surface matches the outer diameter of the on-site pipeline. When the base is installed, the installation position of the base needs to be drawn on the on-site pipeline in advance, and generally, a cross intersection point is drawn as the base installation position. However, when the base is welded at the installation point drawn on site, since the base needs to be welded on the on-site pipeline as a whole, it is not easy to align the center of the whole inclined base with the center point of the cross intersection drawn, and in addition, the deformation during welding makes it difficult to ensure the accuracy of the installation angle after the welding of the base is completed, and in this case, the installation of the sensor is likely to cause the center lines of the two pairs of matched gas ultrasonic flow sensors respectively located on both sides of the pipeline to be different in axis, resulting in poor signal quality and low signal strength of the gas ultrasonic flow sensor. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a tool for online accurate installation of plug-in type gas ultrasonic sensor, which can ensure the accuracy of the installation angle and position of the base and the coaxiality of the two pairs of matched bases on both sides of the pipeline, so that the gas ultrasonic flow sensor has high signal strength and signal quality after the installation is completed, and the above problems existing in the background technology are solved.

[0004] The technical scheme of the utility model is as follows:

[0005] The utility model provides a tool for online precision installation plug-in gas ultrasonic sensor, containing tool main part, base, lock nut, intermediate section and fastening steel band, the tool main part contains inclined support plate and support leg, the rear end bottom of inclined support plate is fixed with support leg, and the bottom of support leg is pasted with the outer wall of pipeline, and fastening steel band is wound on the pipeline after penetrating the steel band perforation on the support leg, and the tool main part is fastened on the pipeline, and the inclination angle of inclined support plate is same with the installation angle of plug-in gas ultrasonic sensor, the inclined support plate is equipped with through -hole, and the intermediate section is the cavity structure of column, the outer wall of upper portion of intermediate section is equipped with intermediate section outer thread, and the inner wall of lower portion is equipped with intermediate section inner thread, and the outer thread of upper portion of base is connected with intermediate section inner thread of intermediate section, and the bottom of base is pasted on the outer wall of pipeline, and the center of base is aligned with the center point of base installation cross drawn on the pipeline, and the outer thread of upper portion of intermediate section is penetrated through the through -hole and is pressed tightly on the opening position on the pipeline through lock nut.

[0006] Further, the outer edge of the bottom of the intermediate section is provided with an annular step, and a plurality of adjusting flat washers are sleeved on the lower portion of the intermediate section, so that the top and bottom of the adjusting flat washers are in contact with the bottom of the inclined support plate and the upper end surface of the annular step, respectively, by sleeving adjusting flat washers with different numbers and thicknesses.

[0007] Further, the support leg is an L-shaped plate, and there are two of them, which are symmetrically arranged, one end of each of the two L-shaped plates is fixed on the bottom of the rear end of the inclined support plate, and the other end of each of the two L-shaped plates is provided with a steel band perforation at the bottom, and the fastening steel band is wound on the outer wall of the pipeline after penetrating the steel band perforations of the two L-shaped plates and is fixed through a buckle structure.

[0008] Further, the axis of the through -hole, the intermediate section and the base coincide.

[0009] The tool main body is a combined assembly welded by the inclined support plate and the support leg, and the inclination angle of the inclined support plate is the same as the installation angle of the gas insertion type ultrasonic sensor. The middle section is screwed on the upper end of the welded base through the internal thread of the middle section, different numbers and thicknesses of adjusting flat washers are selected according to the pipe diameter and are sleeved on the middle section, the adjusting flat washers are located above the annular step, then the external thread of the middle section on the upper part of the middle section passes through the through hole on the inclined support plate of the tool main body, the lock nut is appropriately screwed, and the middle section, the adjusting flat washer and the base are fixed on the inclined support plate of the tool main body; the center of the welded base is aligned with the base installation cross center point drawn on the pipe in advance and is tightly attached to the outer surface of the pipe, at this time, the support leg of the tool main body is also attached to the outer wall of the pipe; two fastening steel belts pass through the corresponding steel belt perforations (rectangular holes) on the two support legs and are wound around the pipe for one turn, the fastening steel belts are tightened to fasten the combination of the tool main body and the base to the outer wall of the pipe, and the lock nut is screwed. Thus, the installation of the insertion type gas ultrasonic sensor is completed. By means of the tool, the base is firmly fixed on the outer wall of the pipe according to the installation angle and the installation position, then welding and hole opening are performed, the installation angle and the installation position of the base are accurate, and the center lines of the two pairs of matched bases on the two sides of the pipe are coaxial, so that the gas ultrasonic flow sensor has high signal strength and signal quality after installation.

[0010] The positive effect of the utility model is: using the tool can fasten one end of the welded base on the tool, better attach the other end to the outer wall of the pipe, easily align the base, not easy to deform during welding, make the installation angle and position of the sensor more accurate, make the center lines of the two pairs of matched gas ultrasonic flow sensors on the two sides of the pipe coaxial, and thus improve the signal quality and signal strength of the gas ultrasonic flow sensor. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the embodiment schematic view of the utility model;

[0012] Figure 2 It is the sectional view of the embodiment of the utility model;

[0013] Figure 3 It is the middle section structure schematic view of the embodiment of the utility model;

[0014] Figure 4 It is the tool main body structure schematic view of the embodiment of the utility model;

[0015] In the drawing: pipe 1, tool main body 2, base 3, adjusting flat washer 4, lock nut 5, middle section 6, fastening steel belt 7, middle section internal thread 8, middle section external thread 9, inclined support plate 10, through hole 11, support leg 12, steel belt perforation 13, annular step 14. DETAILED DESCRIPTION

[0016] The utility model discloses make further illustration to the utility model below combining with the drawing and example:

[0017] A tool for online accurate installation plug-in gas ultrasonic sensor, containing tool main part 2, base 3, lock nut 5, intermediate section 6 and fastening steel band 7, tool main part 2 contains inclined support plate 10 and support leg 12, the rear end bottom of inclined support plate 10 is fixed with support leg 12, and the bottom of support leg 12 is attached to the outer wall of pipeline 1, and fastening steel band 7 is wound on pipeline 1 after penetrating steel band perforation 13 on support leg 12, so that tool main part 2 is fastened on pipeline 1, and the inclination angle of inclined support plate 10 is same with the installation angle of gas plug-in ultrasonic sensor;The inclined support plate 10 is provided with through-hole 11, and the intermediate section 6 is columnar cavity structure, the upper outer wall of intermediate section 6 is provided with intermediate section outer thread 9, and the lower inner wall is provided with intermediate section inner thread 8, the upper outer thread of base 3 is connected with the intermediate section inner thread 8 of intermediate section 6, the bottom of base 3 is attached to the outer wall of pipeline 1, and the center of base 3 is aligned with the center point of base installation cross drawn on pipeline 1, and the upper intermediate section outer thread 9 of intermediate section 6 penetrates through-hole 11 and is pressed tightly on the opening position on pipeline 1 by lock nut 5.

[0018] Referring to the drawing, 3, the bottom outer edge of the intermediate section 6 is provided with an annular step 14, and a plurality of adjusting flat washers 4 are sleeved on the lower part of the intermediate section 6. By sleeving adjusting flat washers 4 of different number and thickness, the top and bottom of the adjusting flat washers are respectively in contact with the bottom of the inclined support plate 10 and the upper end surface of the annular step 14.

[0019] Referring to the drawing, Figure 4 The support leg 12 is an L-shaped plate, and the number is two. The two L-shaped plates are symmetrically arranged, one end of the two L-shaped plates is fixed on the bottom of the rear end of the inclined support plate 10 on both sides, and the other end of the two L-shaped plates is provided with two steel band perforations 13 arranged front and back on the bottom. Two fastening steel bands 7 penetrate through the two steel band perforations 13 arranged front and back of the two L-shaped plates and are wound on the outer wall of the pipeline 1, so as to fix the tool main part 2 on the pipeline 1.

[0020] Preferably, the axis of the through-hole 11, the intermediate section 6 and the base 3 coincides, and the included angle between the axis and the pipeline 1 axis is α.

[0021] Preferably, the fastening steel band 7 is fixed by a buckle structure.

[0022] The specific installation steps of the embodiment are as follows: ①The middle section 6 is screwed on the upper end of the base 3 to be welded through the middle section inner thread 8. ②According to the different pipe diameters of the pipeline 1 on site, different numbers and thicknesses of adjusting flat washers 4 are sleeved on the outside of the middle section 6. The tool is suitable for pipelines with a nominal diameter of ≥125 mm. When the nominal diameter of the pipeline is 125 mm, the outside of the middle section 6 does not need to be sleeved with adjusting flat washers 4. When the nominal diameter of the pipeline is 150 mm, the outside of the middle section 6 needs to be sleeved with adjusting flat washers 4 with a total thickness of 5.1 mm. The larger the pipe diameter, the greater the total thickness and the more the number of adjusting flat washers 4 that need to be sleeved on the outside of the middle section 6 (the number of adjusting flat washers 4 is related to the thickness of a single flat washer). ③The middle section outer thread 9 on the upper part of the middle section 6 is passed through the through hole 11 on the inclined support plate 10, and the locking nut 5 is appropriately tightened to fix the middle section 6, the adjusting flat washer 4, the base 3 and the inclined support plate 10 together. ④Align the center of the welding base 3 with the base installation cross center point drawn on the pipeline 1 in advance and tightly fit on the surface of the pipeline. At this time, the support leg 12 of the tool body 2 also fits on the outer wall of the pipeline 1. The support leg 12 is 2 in total and is located on both sides of the rear end bottom of the welding base 3. The length direction of the support leg 12 is parallel to the center line of the pipeline 1. ⑤The fastening steel belt 7 (2 in total) is respectively passed through the corresponding steel belt perforation 13 (rectangular hole) on the two support legs 12 and wrapped around the pipeline 1 once, and the fastening steel belt 7 is tightened to fasten the combination of the tool body 2 and the base 3 to the outer wall of the pipeline 1. During the tightening of the fastening steel belt 7, the position of the base 3 needs to be adjusted at any time to keep it at the best point. ⑥Tighten the locking nut 5 to make the base 3 tightly fit on the outer wall of the pipeline 1. At this time, the installation of the plug-in type gas ultrasonic sensor tool is completed, and the subsequent welding of the base 3 and the subsequent pressure tapping work can be carried out. The installation of another sensor base at the corresponding position on the other side of the pipeline 1 is completed according to the above steps.

Claims

1. A tooling for precise online installation of an insertion-type gas ultrasonic sensor, characterized in that: The fixture includes a main body (2), a base (3), a locking nut (5), an intermediate section (6), and a fastening steel strip (7). The main body (2) includes an inclined support plate (10) and a support leg (12). The support leg (12) is fixed to the bottom of the rear end of the inclined support plate (10). The bottom of the support leg (12) is in contact with the outer wall of the pipe (1). The fastening steel strip (7) passes through the steel strip through hole (13) on the support leg (12) and is wrapped around the pipe (1) to fasten the main body (2) to the pipe (1). The inclination angle of the inclined support plate (10) is the same as the installation angle of the gas insertion ultrasonic sensor. (10) has a through hole (11), the middle section (6) is a columnar cavity structure, the upper outer wall of the middle section (6) has an external thread (9), the lower inner wall has an internal thread (8), the upper external thread of the base (3) is connected to the internal thread (8) of the middle section (6), the bottom of the base (3) is attached to the outer wall of the pipe (1), the center of the base (3) is aligned with the center point of the base installation cross drawn on the pipe (1), the upper middle section external thread (9) of the middle section (6) passes through the through hole (11) and is threadedly connected to the locking nut (5), pressing the base (3) on the opening position of the pipe (1).

2. The tooling for precise online installation of an insertion-type gas ultrasonic sensor according to claim 1, characterized in that: The bottom outer edge of the intermediate section (6) is provided with an annular step (14), and several adjusting washers (4) are fitted on the lower part of the intermediate section (6). By fitting adjusting washers (4) of different numbers and thicknesses, the top and bottom of the adjusting washers (4) are made to contact the bottom of the inclined support plate (10) and the upper surface of the annular step (14) respectively.

3. A tooling for precise online installation of an insertion-type gas ultrasonic sensor according to claim 1 or 2, characterized in that: The support leg (12) is an L-shaped plate, and there are two of them. The two L-shaped plates are symmetrically arranged. One end of the two L-shaped plates is fixed to the bottom of the rear end of the inclined support plate (10) on both sides. The bottom of the other end of the two L-shaped plates is provided with steel strip through holes (13). The fastening steel strip (7) passes through the steel strip through holes (13) of the two L-shaped plates and then wraps around the outer wall of the pipe (1).

4. A tooling for precise online installation of an insertion-type gas ultrasonic sensor according to claim 1 or 2, characterized in that: The axes of the through hole (11), the intermediate section (6), and the base (3) coincide.

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