Ultrasonic flowmeter mounting device convenient to maintain

Abstract

The utility model discloses an ultrasonic flowmeter mounting device convenient to maintain. The ultrasonic flowmeter mounting device comprises a plane connecting plate and a tightening bolt. The front end face and the rear end face of the plane connecting plate are planes, the front end face is backwards provided with a round hole and an annular groove, and the round hole is located in the annular groove and not communicated with the annular groove. A groove is formed in the rear end face forwards, and the round hole is located in the groove and communicated with the groove. The front end face of the annular front sealing gasket exceeds the front end face of the plane connecting plate; and the rear end surface of the annular rear sealing gasket exceeds the rear end surface of the plane connecting plate. The front end face is further provided with a plurality of threaded holes distributed at equal angles around the circle center of the round hole, the length of the tightening bolts is larger than the depth of the threaded holes, and the tightening bolts can be screwed into the threaded holes from the rear. According to the device, the mounting success rate of the sealing gasket can be increased, the sealing gasket is prevented from deforming and shifting in the mounting process, the water leakage phenomenon is effectively prevented, unnecessary reworking is avoided, and the maintenance efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage flow measurement technical field, concretely relates to a kind of ultrasonic flowmeter installation device of easy maintenance. BACKGROUND

[0002] In the whole process of sewage treatment, accurately monitoring inflow is crucial to balance system load, which requires us to maintain a high degree of accuracy in water flow measurement. Ultrasonic flowmeter, with its advanced measurement technology and wide application adaptability, plays an indispensable role in the field of sewage treatment. Among them, the pipe section type ultrasonic flowmeter becomes the preferred tool for sewage treatment flow measurement with its excellent measurement accuracy and wide fluid adaptability.

[0003] However, in the actual application process, pipe section type ultrasonic flowmeter may need to be disassembled for various reasons, such as regular maintenance and calibration, coping with changes in pipeline conditions, or upgrading and replacing equipment. Although the removal process is relatively simple, challenges often arise when reinstalling. Improper installation or deformation of the gasket during installation often leads to rapid leakage of the flowmeter after reinstallation, which not only affects the measurement accuracy, but also may cause system failure, forcing maintenance personnel to have to rework, increasing maintenance costs and time consumption.

[0004] Therefore, it is particularly important to design a convenient and reliable installation device. The device should aim to improve the installation success rate of the gasket and effectively prevent the occurrence of leakage, thereby avoiding unnecessary rework and improving maintenance efficiency and quality. SUMMARY

[0005] The utility model aims at providing a kind of ultrasonic flowmeter installation device of easy maintenance to solve the problems described in the background art.

[0006] The technical scheme of the utility model is realized as follows:

[0007] The utility model provides an ultrasonic flowmeter installation device convenient to maintain, including plane connecting plate and tightening bolt, the front end surface and rear end surface of plane connecting plate are plane, the front end surface of plane connecting plate still is provided with round hole to rear, the front end surface of plane connecting plate still is provided with annular groove to rear, and the round hole is located in the internal range of annular groove, and the round hole is not communicated with annular groove, the rear end surface of plane connecting plate still is provided with recess to front, and the round hole is located in the internal range of recess, and the round hole is communicated with recess, and the annular groove still detachably embeds with annular front sealing pad, when the rear end surface of front sealing pad and the bottom of annular groove are in contact, the front end surface of front sealing pad is beyond the front end surface of plane connecting plate to front, the recess still detachably embeds with annular rear sealing pad, when the front end surface of rear sealing pad and the bottom of annular groove are in contact, the rear end surface of rear sealing pad is beyond the rear end surface of plane connecting plate to rear, the front end surface of plane connecting plate still is provided with a plurality of threaded holes to rear, a plurality of threaded holes are angularly spaced apart with the center of the round hole as the center, the center of a plurality of threaded holes is equal to the center of the round hole distance to ensure that a plurality of threaded holes are located on the same circumference, and the length of tightening bolt is greater than the depth of threaded hole, and tightening bolt is detachably screwed in threaded hole from the rear of threaded hole.

[0008] Further technical solutions are that the annular groove is a circular annular groove, and the front sealing pad is a circular annular pad.

[0009] Further technical solutions are that when the front sealing pad is embedded in the annular groove, the inner side wall of the front sealing pad is in contact with the inner side wall of the annular groove, and the outer side wall of the front sealing pad is in contact with the outer side wall of the annular groove.

[0010] Further technical solutions are that the recess is a circular groove, and the rear sealing pad is a circular annular pad.

[0011] Further technical solutions are that the rear end surface of the rear sealing pad is further provided with a circular embedding groove, and the center of the embedding groove coincides with the center of the rear sealing pad.

[0012] Further technical solutions are that when the rear sealing pad is embedded in the recess, the outer side wall of the rear sealing pad does not abut against the side wall of the recess.

[0013] Further technical solutions are that the number of threaded holes is a multiple of two and is not less than four.

[0014] Further technical solutions are that the plane connecting plate is a circular plate, and the center of the round hole coincides with the center of the plane connecting plate.

[0015] Further technical solutions are that the front sealing pad and the rear sealing pad are both made of elastic material.

[0016] Further technical solutions are that the front sealing pad and the rear sealing pad are both made of elastic rubber material.

[0017] The utility model discloses beneficial effect lies in:

[0018] 1, adjustable length design: through the cooperation of the compression bolt and the threaded hole realizes length dynamic adjustment: when installing, first compresses the back sealing washer with compression bolt and shortens the total length to facilitate insertion, and then restores the elastic length by gradually replacing the connecting bolt.

[0019] 2, step stress balancing technology: adopt the progressive installation method of interval screw compression bolt, cooperate the alternate pre-tightening operation of connecting bolt and nut, realize the uniform distribution of sealing washer stress.

[0020] 3, modular quick-mount structure: the plane connecting plate integrates the standardized threaded hole layout, and strictly corresponds with the flange hole, cooperates the positioning function of the back sealing washer embedded groove, realizes the quick centering installation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the pre-installation perspective drawing of the device, ultrasonic flowmeter and water pipe cooperation;

[0022] Figure 2 It is the complete installation drawing of the device, ultrasonic flowmeter and water pipe cooperation;

[0023] Figure 3 It is the connection cooperation schematic drawing of the device and ultrasonic flowmeter;

[0024] Figure 4 It is Figure 3 The partial structure section view of the device;

[0025] Figure 5 It is the connection cooperation schematic drawing of the device and ultrasonic flowmeter from another angle;

[0026] Figure 6 It is Figure 5 The partial structure section view of the device;

[0027] Figure 7 It is the connection cooperation section view of the device and the second flange.

[0028] In the figure, 1, water pipe, 2, flow pipe, 3, first flange, 4, flat connecting plate, 5, second flange, 6, first flange hole, 7, connecting bolt, 8, tightening bolt, 9, front gasket, 10, rear gasket, 11, second flange hole, 12, threaded hole, 13, annular groove, 14, groove, 15, embedded groove, 16, round hole. DETAILED DESCRIPTION

[0029] In order to better understand the technical content of the utility model, the following specific embodiments are provided, and the utility model is further explained in combination with the drawings.

[0030] Referring to Figure 1 , a simplified structure of a commonly used pipe section type ultrasonic flowmeter is shown, which includes a flow pipe 2, both ends of the flow pipe 2 are provided with a second flange 5, and the second flange 5 is connected to the first flange 3 of the front and rear water pipes 1. The second flange hole 11 on the second flange 5 can be four or six or eight, or even more. Generally, considering uniform pressure application, the second flange hole 11 on the second flange 5 of the commonly used pipe section type ultrasonic flowmeter is more commonly used in six and eight. Of course, the larger the pipe diameter of the water pipe 1, the more the first flange hole 6 on the first flange 3 and the second flange hole 11 on the second flange 5, which needs to be determined according to specific use needs.

[0031] It should be particularly noted that when using the above scheme, the skilled person in the art should naturally select the same specification of the first flange 3 and the second flange 5, that is, the number of the first flange hole 6 and the second flange hole 11 is the same and the positions coincide one by one.

[0032] Under the connection condition that the pipe section type ultrasonic flowmeter and the water pipe 1 are connected through the flanges, when the pipe section type ultrasonic flowmeter is disassembled and reinstalled, due to the clamping of the front and rear water pipes 1, when the flow pipe 2 of the pipe section type ultrasonic flowmeter is inserted, the gasket connected between the first flange 3 and the second flange 5 will be stuck, resulting in deformation and displacement of the gasket.

[0033] Figure 1 At the same time, the first step of the device in use is also shown, that is, the first flange hole 6 and the second flange hole 11 between the first flange 3 and the second flange 5 are not completely connected through the connecting bolt 7 and the matched nut. And the Figure 2 The effect after the first flange hole 6 and the second flange hole 11 are completely connected through the connecting bolt 7 is shown.

[0034] Therefore, when using the device, the appropriate length is left out when arranging the water pipe 1 for the first time, that is, the shortest length of the flow pipe 2 plus the device is less than the length left between the two ends of the water pipe 1, and the longest length of the flow pipe 2 plus the device is greater than the length left between the two ends of the water pipe 1.

[0035] According to the above description, the specific structure and application principle of the device will be described. The ultrasonic flowmeter installation device convenient to maintain includes a plane connecting plate 4 and a tightening bolt 8. The front end face and the rear end face of the plane connecting plate 4 are planes. The front end face of the plane connecting plate 4 is further provided with a circular hole 16 in the rear direction. The front end face of the plane connecting plate 4 is further provided with an annular groove 13 in the rear direction. The circular hole 16 is arranged within the internal range of the annular groove 13. The circular hole 16 is not communicated with the annular groove 13. The rear end face of the plane connecting plate 4 is further provided with a groove 14 in the front direction. The circular hole 16 is arranged within the internal range of the groove 14. The circular hole 16 is communicated with the groove 14. The annular groove 13 is further detachably embedded with an annular front sealing gasket 9. When the rear end face of the front sealing gasket 9 abuts against the bottom of the annular groove 13, the front end face of the front sealing gasket 9 protrudes forward beyond the front end face of the plane connecting plate 4. The groove 14 is further detachably embedded with an annular rear sealing gasket 10. When the front end face of the rear sealing gasket 10 abuts against the bottom of the annular groove 13, the rear end face of the rear sealing gasket 10 protrudes rearward beyond the rear end face of the plane connecting plate 4. The front end face of the plane connecting plate 4 is further provided with a plurality of threaded holes 12 in the rear direction. The plurality of threaded holes 12 are equiangularly distributed with the center of the circular hole 16 as the center. The center of the plurality of threaded holes 12 is equal in distance to the center of the circular hole 16 to ensure that the plurality of threaded holes 12 are located on the same circumference. The length of the tightening bolt 8 is greater than the depth of the threaded hole 12. The tightening bolt 8 is detachably screwed in the threaded hole 12 from the rear of the threaded hole 12.

[0036] When using the above scheme, the flow pipe 2 is first placed vertically. Then the rear sealing gasket 10 is placed on the second flange 5 at the upper end of the flow pipe 2, so that the center of the annular rear sealing gasket 10 coincides with the center of the flow pipe 2. Then the rear end face of the plane connecting plate 4 is aligned with the second flange 5 on the flow pipe 2. The groove 14 accurately sleeves the rear sealing gasket 10, and the threaded hole 12 is aligned with the second flange hole 11.

[0037] It should be particularly noted that in the normal manufacturing logic, the person skilled in the art should default that the number of threaded holes 12 is the same as the number of second flange holes 11 and one-to-one corresponding.

[0038] Reference Figures 3 to 7Subsequently, the tightening bolt 8 is passed through the second flange hole 11 from the rear of the threaded hole 12, screwed into the threaded hole 12, and the tightening bolt 8 should be spaced one threaded hole 12 to be screwed to ensure that the flat connecting plate 4 and the second flange 5 are tightened to evenly compress the rear gasket 10. After the second flange 5 at both ends of the flow tube 2 is connected to the flat connecting plate 4, the flat connecting plate 4 is tightened by the tightening bolt 8, the distance between the flat connecting plate 4 and the second flange hole 11 is shortened by compressing the rear gasket 10, thereby reducing the total length of the flow tube 2 plus the two flat connecting plates 4. Subsequently, the front gasket 9 is sleeved into the annular groove 13, and the shortest length of the flow tube 2 plus the device is less than the length left between the two water pipes 1, and the flow tube 2 and the device are placed between the two water pipes 1, at this time the front gasket 9 will not be blocked by the first flange 3, so as to avoid deformation or displacement. Align the threaded hole 12 with the first flange hole 6, pass the connecting bolt 7 through the first flange hole 6, the threaded hole 12 and the second flange hole 11, and connect the nut, pre-tighten, then loosen the tightening bolt 8 uniformly, and tighten the connecting bolt 7 and the nut uniformly, under the elastic reset of the rear gasket 10, the front gasket 9 abuts against the first flange 3, and the front gasket 9 is gradually compressed to form a sealed connection under the action of the connecting bolt 7 and the nut. When the tightening bolt 8 and the connecting bolt 7 are adjusted to the appropriate degree, the longest length of the flow tube 2 plus the device is greater than the length left between the two water pipes 1, and the front gasket 9 and the rear gasket 10 are compressed to form a sealed connection, and the tightening bolt 8 is removed and replaced with the connecting bolt 7 and the nut. At this point, the installation of the device with the pipe section type ultrasonic flowmeter is completed.

[0039] The device is convenient and reliable during installation, can improve the installation success rate of the gasket, prevent deformation and displacement of the gasket during installation, effectively prevent water leakage, avoid unnecessary rework, and improve maintenance efficiency and quality.

[0040] Preferably, the annular groove 13 is a circular annular groove, and the front gasket 9 is a circular gasket.

[0041] Preferably, when the front gasket 9 is embedded in the annular groove 13, the inner side wall of the front gasket 9 abuts against the inner side wall of the annular groove 13, and the outer side wall of the front gasket 9 abuts against the outer side wall of the annular groove 13.

[0042] When the above scheme is used, the inner side wall of the front gasket 9 abuts against the inner side wall of the annular groove 13, and the outer side wall of the front gasket 9 abuts against the outer side wall of the annular groove 13, which can effectively block the front gasket 9, prevent the front gasket 9 from falling and moving during the movement of the flow tube 2 between the water pipes 1, and improve the installation convenience and connection accuracy.

[0043] Preferably, the recess 14 is a circular groove, and the rear gasket 10 is a circular ring-shaped gasket.

[0044] Preferably, the rear end surface of the rear gasket 10 is further provided with a circular embedding groove 15 forwardly, and the center of the embedding groove 15 coincides with the center of the rear gasket 10.

[0045] When the above scheme is used, the embedding groove 15 can be used in cooperation with the convex ring on the second flange 5 of most pipe section type ultrasonic flowmeters, and the convex ring on the second flange 5 is sleeved by the embedding groove 15, thereby playing a role of quick positioning.

[0046] Preferably, when the rear gasket 10 is embedded in the recess 14, the outer side wall of the rear gasket 10 does not abut against the side wall of the recess 14.

[0047] When the above scheme is used, the outer side wall of the rear gasket 10 does not abut against the side wall of the recess 14, and when the flat connecting plate 4 and the second flange 5 are tightened, a release space is provided for deformation of the rear gasket 10, so that the deformation of the rear gasket 10 always remains in the recess 14, and the distance between the flat connecting plate 4 and the second flange 5 can be effectively shortened.

[0048] Preferably, the number of the threaded holes 12 is a multiple of two and is not less than four.

[0049] Preferably, the flat connecting plate 4 is a circular plate, and the center of the circular hole 16 coincides with the center of the flat connecting plate 4.

[0050] Preferably, the front gasket 9 and the rear gasket 10 are both made of elastic material.

[0051] Preferably, the front gasket 9 and the rear gasket 10 are both made of elastic rubber material, and the rubber material can be selected.

[0052] The above only describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An ultrasonic flow meter installation device that facilitates maintenance, characterized by: The flat connecting plate has a front end face and a rear end face, both of which are flat, the front end face of the flat connecting plate is further provided with a circular hole in the rear direction, the front end face of the flat connecting plate is further provided with an annular groove in the rear direction, the circular hole is arranged within the internal range of the annular groove, the circular hole is not communicated with the annular groove, the rear end face of the flat connecting plate is further provided with a recess in the front direction, the circular hole is arranged within the internal range of the recess, the circular hole is communicated with the recess, the annular groove is further detachably embedded with an annular front sealing gasket, when the rear end face of the front sealing gasket abuts against the bottom of the annular groove, the front end face of the front sealing gasket protrudes forward beyond the front end face of the flat connecting plate, the recess is further detachably embedded with an annular rear sealing gasket, when the front end face of the rear sealing gasket abuts against the bottom of the annular groove, the rear end face of the rear sealing gasket protrudes rearward beyond the rear end face of the flat connecting plate, the front end face of the flat connecting plate is further provided with a plurality of threaded holes in the rear direction, the plurality of threaded holes are distributed at equal angles with the center of the circular hole as the center, the center of the plurality of threaded holes is equal in distance to the center of the circular hole to ensure that the plurality of threaded holes are located on the same circumference, the length of the tightening bolt is greater than the depth of the threaded hole, and the tightening bolt is detachably screwed in the threaded hole from the rear of the threaded hole.

2. The ultrasonic flow meter installation device of claim 1, wherein: The annular groove is a circular annular groove, and the front sealing gasket is a circular annular gasket.

3. The ultrasonic flow meter installation device of claim 2, wherein: When the front sealing gasket is embedded in the annular groove, the inner side wall of the front sealing gasket abuts against the inner side wall of the annular groove, and the outer side wall of the front sealing gasket abuts against the outer side wall of the annular groove.

4. The ultrasonic flow meter installation device of claim 1, wherein: The recess is a circular groove, and the rear sealing gasket is a circular annular gasket.

5. A maintenance-friendly ultrasonic flow meter mounting apparatus according to claim 4, characterized in that: The rear end face of the rear sealing gasket is further provided with a circular embedding groove in the front direction, and the center of the embedding groove coincides with the center of the rear sealing gasket.

6. A maintenance-friendly ultrasonic flow meter mounting apparatus according to claim 5, characterized in that: When the rear sealing gasket is embedded in the recess, the outer side wall of the rear sealing gasket does not abut against the side wall of the recess.

7. The ultrasonic flow meter installation device of claim 1, wherein: The number of the threaded holes is a multiple of two and is not less than four.

8. The ultrasonic flow meter installation device of claim 1, wherein: The flat connecting plate is a circular plate, and the center of the circular hole coincides with the center of the flat connecting plate.

9. The ultrasonic flow meter installation device of claim 1, wherein: The front sealing gasket and the rear sealing gasket are both made of elastic material.

10. The ultrasonic flow meter installation device of claim 9, wherein: The front sealing gasket and the rear sealing gasket are both made of elastic rubber material.

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