Welding splicing type elbow flow meter

Abstract

The utility model discloses a welding splicing type elbow flow meter, which relates to the technical field of elbow flow meters, and comprises a flow meter body and a pipeline, a protective assembly is detachably arranged at the connecting weld joint of the flow meter body and the pipeline, and the protective assembly comprises two semi-ring hoops, two sealing gaskets and two fastening bolts. The two sealing gaskets are fixedly installed on inner rings of the two semi-annular hoops respectively, the two semi-annular hoops can be spliced into a complete pipe hoop through the two fastening bolts, and the supporting assemblies are installed on the flowmeter body and the pipeline. According to the elbow flow meter, the two semi-hoops can be assembled and installed at the connecting weld joint of the flow meter body and a pipeline through the fastening bolts, the weld joint is sealed and covered, the weld joint can be protected, the weld joint is prevented from cracking due to invasion of foreign objects in a severe working environment, the structural strength and the sealing performance of the elbow flow meter are improved, and the service life of the elbow flow meter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow flowmeters, in particular to a welded spliced ​​elbow flowmeter. Background Art

[0002] The elbow flowmeter is a flow measurement device that works based on the differential pressure principle. It uses the inertial force generated when the fluid passes through the elbow part of the pipe to form a pressure difference, and then measures the flow rate. The characteristics of the elbow flowmeter include no additional pressure loss, easy installation, wear resistance, maintenance-free, strong adaptability, wide measuring range and no strict requirements on straight pipe sections.

[0003] Welded spliced ​​elbow flowmeters are particularly suitable for measurement modifications on existing pipelines because they can be directly welded and installed on the pipeline without the need for additional flanges or connectors. Although this installation method helps reduce the risk of leakage and simplifies the installation process, in harsh working environments, they are subject to foreign object invasion and pipeline vibration, and are prone to common welding defects such as weld cracking. These defects may affect the structural strength and sealing performance of the elbow flowmeter, thereby affecting its measurement accuracy and reliability, and may accelerate the damage of the elbow flowmeter and shorten its service life. In response to the above problems, the inventors have proposed a welded spliced ​​elbow flowmeter to solve the above problems. Utility Model Content

[0004] In order to solve the problem that some existing welded spliced ​​elbow flowmeters are prone to common welding defects such as weld cracking in harsh working environments, which may affect the structural strength and sealing performance of the elbow flowmeter, thereby affecting its measurement accuracy and reliability; the purpose of this utility model is to provide a welded spliced ​​elbow flowmeter.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a welded spliced ​​elbow flowmeter, comprising a flowmeter body and a pipeline, two pressure taking tubes fixedly installed on the flowmeter body, the flowmeter body and the pipeline are connected by welding, and a protective component is detachably installed at the connecting weld between the flowmeter body and the pipeline, the protective component comprises two half hoops, two sealing gaskets, and two fastening bolts, the two sealing gaskets are respectively fixedly installed on the inner rings of the two half hoops, the two half hoops can be spliced ​​into a complete pipe hoop by two fastening bolts, and the sealing gasket can completely cover the weld, and a support component is installed on the flowmeter body and the pipeline.

[0006] Preferably, the support assembly includes a fixed frame, both ends of which are fixedly installed with a fixed frame, and the two fixed frames are respectively mounted on the flow meter body and the pipeline, and two mirror-distributed clamping plates are slidably installed in the two fixed frames, and two-way screws are rotatably installed on both sides of the two fixed frames, and the two-way screw threads are inserted in the corresponding two clamping plates.

[0007] Preferably, a drive shaft is rotatably installed on the top of the two fixed frames, a worm is fixedly installed on both ends of the two drive shafts, a knob is fixedly installed on one end of the two drive shafts, a worm gear is fixedly installed on the top of the four bidirectional screw rods, and the worm gear is engaged with the corresponding worm gear.

[0008] Preferably, a threaded rod is fixedly installed on the bottom end of the fixing frame, a threaded sleeve is threadedly sleeved on the threaded rod, and a mounting plate is fixedly installed on the bottom end of the threaded sleeve.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. In the present invention, by providing a protective assembly, the two half-hoops can be assembled and installed at the connection weld between the flow meter body and the pipeline using fastening bolts, thereby sealing and covering the weld and protecting the weld to prevent the weld from being cracked by foreign objects in harsh working environments, thereby improving the structural strength and sealing performance of the elbow flow meter and its service life;

[0011] 2. In the present invention, a support assembly is installed to support the connection between the flow meter body and the pipeline. When the pipeline vibrates, the flow meter body and the pipeline can vibrate synchronously, thereby avoiding weld cracking caused by pipeline vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the protective component of the utility model;

[0015] Figure 3 This is a schematic diagram of the fixed frame structure of the utility model.

[0016] In the figure: 1. Flowmeter body; 11. Pressure taking tube; 2. Pipe; 3. Protective assembly; 31. Half hoop; 32. Sealing gasket; 33. Fastening bolt; 4. Support assembly; 41. Fixing bracket; 42. Threaded rod; 43. Threaded sleeve; 44. Mounting plate; 45. Fixing frame; 46. Clamping plate; 47. Bidirectional screw; 48. Drive shaft; 49. Worm; 410. Worm gear; 411. Knob. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example: Figure 1-3 As shown, the utility model provides a welded spliced ​​elbow flowmeter, including a flowmeter body 1 and a pipeline 2, two pressure taking pipes 11 are fixedly installed on the flowmeter body 1, the flowmeter body 1 and the pipeline 2 are connected by welding, and a protective component 3 is detachably installed at the connecting weld between the flowmeter body 1 and the pipeline 2, the protective component 3 includes two half-hoops 31, two sealing gaskets 32, and two fastening bolts 33, the two sealing gaskets 32 are fixedly installed on the inner rings of the two half-hoops 31, respectively, the two half-hoops 31 can be spliced ​​into a complete pipe hoop by two fastening bolts 33, and the sealing gasket 32 ​​can completely cover the weld, the flowmeter body 1 and the pipeline 2 are installed with a supporting component 4, the flowmeter body 1 is a welded spliced ​​elbow flowmeter, and when in use, the flowmeter can be The meter body 1 is welded to the pipeline 2, and the inertial force generated when the fluid passes through the elbow part of the elbow flowmeter is used to form a pressure difference. The flow and pressure are measured by the pressure taking tube 11. The two half ring hoops 31 can be assembled and installed at the connection weld between the flowmeter body 1 and the pipeline 2 using the fastening bolts 33 to seal and cover the weld. The protective component 3 can protect the weld to prevent the weld from being invaded by foreign objects and cracking in a harsh working environment. The connection between the flowmeter body 1 and the pipeline 2 is supported by installing the support component 4. When the pipeline 2 vibrates, the flowmeter body 1 and the pipeline 2 can be vibrated synchronously, thereby avoiding weld cracking caused by the vibration of the pipeline 2, thereby improving the structural strength and sealing performance of the elbow flowmeter, as well as the service life.

[0019] The support assembly 4 includes a fixing frame 41 , and fixing frames 45 are fixedly mounted on both ends of the fixing frame 41 , and the two fixing frames 45 are respectively sleeved on the flow meter body 1 and the pipeline 2 .

[0020] By adopting the above technical solution, the fixing bracket 41 and the fixing frame 45 are used to support the connection between the flow meter body 1 and the pipeline 2.

[0021] Two mirror-image-distributed clamping plates 46 are slidably mounted in the two fixed frames 45 . Two-way screw rods 47 are rotatably mounted on both sides of the two fixed frames 45 , and the two-way screw rods 47 are threadedly inserted in the corresponding two clamping plates 46 .

[0022] By adopting the above technical solution, the bidirectional screw rod 47 drives the corresponding two clamping plates 46 to slide toward each other, thereby clamping and fixing the flow meter body 1 and the pipeline 2.

[0023] A driving shaft 48 is rotatably mounted on the top of each of the two fixed frames 45 , a worm 49 is fixedly mounted on both ends of each of the two driving shafts 48 , and a knob 411 is fixedly mounted on one end of each of the two driving shafts 48 .

[0024] By adopting the above technical solution, the knob 411 is used to drive the driving shaft 48 to rotate, and the driving shaft 48 drives the worm 49 to rotate.

[0025] A worm gear 410 is fixedly mounted on the top of each of the four bidirectional lead screws 47 , and the worm gear 410 is meshed with the corresponding worm 49 .

[0026] By adopting the above technical solution, the worm 49 drives the worm wheel 410 to rotate, and the worm wheel 410 drives the bidirectional screw rod 47 to rotate.

[0027] A threaded rod 42 is fixedly mounted on the bottom end of the fixing frame 41 . A threaded sleeve 43 is threadedly sleeved on the threaded rod 42 . A mounting plate 44 is fixedly mounted on the bottom end of the threaded sleeve 43 .

[0028] By adopting the above technical solution, the threaded sleeve 43 can drive the mounting plate 44 to rotate spirally on the threaded rod 42 to adjust the position according to the distance between the pipe 2 and the ground or wall, and the support assembly 4 can be installed and fixed on the ground or wall through the mounting plate 44.

[0029] Working principle: When the utility model is in use, the flow meter body 1 is welded to the pipe 2, and then the fixing frame 45 is respectively sleeved on the flow meter body 1 and the pipe 2, and the knob 411 is used to drive the drive shaft 48 to rotate, the drive shaft 48 drives the worm 49 to rotate, the worm 49 drives the worm gear 410 to rotate, the worm gear 410 drives the bidirectional screw 47 to rotate, and the bidirectional screw 47 drives the corresponding two clamping plates 46 to slide toward each other, clamping and fixing the flow meter body 1 and the pipe 2, and according to the distance between the pipe 2 and the ground or wall, the threaded sleeve 43 drives the mounting plate 44 to spirally rotate on the threaded rod 42 to adjust the position, and the mounting plate 44 is installed. The support assembly 4 is installed and fixed on the ground or wall. The support assembly 4 is installed to support the connection between the flow meter body 1 and the pipe 2. When the pipe 2 vibrates, the flow meter body 1 and the pipe 2 can vibrate synchronously, thereby avoiding the weld cracking caused by the vibration of the pipe 2. Then, the two half ring hoops 31 are assembled and installed at the connection weld between the flow meter body 1 and the pipe 2 using the fastening bolts 33 to seal and cover the weld. The protective assembly 3 can protect the weld to prevent the weld from being cracked due to invasion by foreign objects in harsh working environments, thereby improving the structural strength and sealing performance of the elbow flowmeter, as well as its service life.

[0030] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A welded spliced ​​elbow flowmeter, comprising a flowmeter body (1) and a pipeline (2), characterized in that: Two pressure-taking pipes (11) are fixedly mounted on the flowmeter body (1). The flowmeter body (1) is connected to the pipeline (2) by welding. A protective assembly (3) is detachably mounted at the connection weld between the flowmeter body (1) and the pipeline (2). The protective assembly (3) comprises two half hoops (31), two sealing gaskets (32), and two fastening bolts (33). The two sealing gaskets (32) are respectively fixedly mounted on the inner rings of the two half hoops (31). The two half hoops (31) can be spliced ​​into a complete pipe hoop by the two fastening bolts (33), and the sealing gasket (32) can completely cover the weld. A support assembly (4) is mounted on the flowmeter body (1) and the pipeline (2).

2. A welded spliced ​​elbow flowmeter according to claim 1, characterized in that: The support assembly (4) comprises a fixing frame (41), both ends of the fixing frame (41) are fixedly mounted with fixing frames (45), and the two fixing frames (45) are respectively sleeved on the flow meter body (1) and the pipeline (2).

3. A welded spliced ​​elbow flowmeter as claimed in claim 2, characterized in that: Two mirror-distributed clamping plates (46) are slidably installed in the two fixing frames (45), and two-way screw rods (47) are rotatably installed on both sides of the two fixing frames (45), and the two-way screw rods (47) are threadedly inserted in the corresponding two clamping plates (46).

4. A welded spliced ​​elbow flowmeter as claimed in claim 2, characterized in that: The top ends of the two fixed frames (45) are both rotatably mounted with drive shafts (48), both ends of the two drive shafts (48) are both fixedly mounted with worms (49), and one end of the two drive shafts (48) is both fixedly mounted with knobs (411).

5. A welded spliced ​​elbow flowmeter as claimed in claim 3, characterized in that: A worm wheel (410) is fixedly mounted on the top end of each of the four bidirectional screw rods (47), and the worm wheel (410) is meshed with the corresponding worm (49).

6. A welded spliced ​​elbow flowmeter as claimed in claim 2, characterized in that: A threaded rod (42) is fixedly mounted on the bottom end of the fixing frame (41), a threaded sleeve (43) is threadedly sleeved on the threaded rod (42), and a mounting plate (44) is fixedly mounted on the bottom end of the threaded sleeve (43).

Images