Calibration device of plug-in electromagnetic flowmeter

Abstract

The utility model relates to a calibration device of a plug-in electromagnetic flowmeter, and relates to the field of flowmeter calibration devices. The device comprises trusses, calibration water tanks, a control case, a guide assembly and a moving table, the multiple trusses are transversely assembled, the calibration water tanks are horizontally fixed to the bottoms of the trusses, the guide assembly is arranged on the front portions of the trusses and arranged above the calibration water tanks, the guide assembly comprises a guide frame, and the moving table is horizontally assembled on the top face of the guide frame in a sliding mode; a servo motor is vertically fixed to the end face of the side, close to the truss, of the moving table, a driving gear is horizontally fixed to the output end of the servo motor, and a sliding strip is horizontally fixed to the vertical end face of the side, close to the guide assembly, of the truss. During use, the truss transversely extends to calibrate the detection length, meanwhile, the length of the water tank is calibrated, the moving table horizontally moves on the guide assembly, the moving path of the flowmeter is expanded during calibration, the requirement for holding and clamping products of the same specification and different lengths is met, and the calibration range of the flowmeter is expanded.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a flow meter calibration device, in particular to a calibration device for an insertion type electromagnetic flow meter. BACKGROUND

[0002] The insertion type electromagnetic flow meter is an instrument for measuring the flow of conductive fluid. When the conductive liquid flows through the magnetic field perpendicular to the flow direction, an electromotive force is generated in the liquid, which can be detected by the electrodes located on the pipe wall. The electrodes transmit the detected signal to the converter, and the converter converts the signal into flow rate information. Flow meter calibration refers to a process of determining or verifying the accuracy of flow meter measurement values through a series of standard procedures.

[0003] The existing calibration device for the flow meter with the publication number CN212340379U includes a water tank. The water outlet of the water tank is connected with a water pump group through a water outlet control valve. The water pump group is fixedly connected with the water inlet of a pressure stabilizing tank through a standard pipe. The water outlet of the pressure stabilizing tank is communicated with a flow dividing pipe. A plurality of branch pipes are communicated on the flow dividing pipe. The branch pipes are communicated with a plurality of flow collecting pipes through a flow collecting pipe. The other end of the flow collecting pipe is communicated with the water return port of the water tank through the flow collecting pipe. The water tank provides water source for the calibration of the flow meter. The water outlet of the water tank is connected with the water pump group through the water outlet control valve. The water outlet control valve controls the opening and closing of the water outlet. The water pump group transports water flow to the pressure stabilizing tank for buffering. The pressure stabilizing tank is used for containing water flow, balancing water quantity and pressure. The water outlet of the pressure stabilizing tank is fixedly connected with the flow dividing pipe. The water outlet of the pressure stabilizing tank is communicated with the flow dividing pipe. A plurality of branch pipes are communicated on the flow dividing pipe. The branch pipes are communicated with a plurality of flow collecting pipes through a flow collecting pipe. The other end of the flow collecting pipe is communicated with the water return port of the water tank through the flow collecting pipe. The plurality of branch pipes and the flow collecting pipes are communicated through the flow collecting pipe.

[0004] For the related technology in the above, the inventor finds that when the flow meter is calibrated, the flow meter is fixed in the water tank during calibration, and the moving path of the flow meter during calibration is limited, which cannot meet the use of the same specification and different length products, and the calibration range of the flow meter is reduced. Practical new type content

[0005] In order to overcome the situation that the flow meter is fixed in the water tank during calibration, the moving path of the flow meter during calibration is limited, which cannot meet the use of the same specification and different length products, and the calibration range of the flow meter is reduced, the application provides a calibration device for an insertion type electromagnetic flow meter.

[0006] The calibration device for the insertion type electromagnetic flow meter provided by the application adopts the following technical scheme:

[0007] The utility model provides a kind of calibration device of insertion electromagnetic flowmeter, including truss, calibration water tank, control machine case, guide assembly and moving platform, truss is transversely assembled with multiple, and the bottom of truss is horizontally fixed with calibration water tank, guide assembly is set in truss front, and guide assembly is set above calibration water tank, guide assembly includes guide frame, the top surface of guide frame is horizontally slidably assembled with moving platform, and servo motor is vertically fixed on the side end surface of moving platform close to truss, and the output of servo motor is horizontally fixed with driving gear, the side vertical end surface of truss close to guide assembly is horizontally fixed with slide, and slide upper portion is horizontally fixed with rack, and rack is engaged with driving gear, the side vertical sliding assembly of moving platform is vertically slidably assembled with lifting piece away from guide frame, and insertion electromagnetic flowmeter is vertically assembled below lifting piece, one end of truss is fixed with control machine case, and control machine case is used to control servo motor operation.

[0008] By adopting the above technical scheme, the insertion electromagnetic flowmeter to be calibrated is vertically assembled below the lifting piece during use. During calibration, the servo motor on the moving platform is controlled to rotate by the control machine case, which drives the driving gear at the output end of the servo motor to rotate, engages the rack on the guide assembly to move upward, drives the moving platform to move horizontally on the slide of the truss, and drives the insertion electromagnetic flowmeter to move horizontally in the calibration water tank. The truss is driven by the servo motor to move at a constant speed in a straight line. During operation, the water flow passing through the flow guide pipe of the insertion flowmeter generates an infrared pulse, which is compared with the output pulse of the servo motor, thereby calibrating the insertion flowmeter. Furthermore, the calibration detection length is extended by the lateral extension of the truss during use, and the length of the calibration water tank is utilized. The moving platform moves horizontally on the guide assembly, the moving path of the flowmeter is expanded during calibration, and the same specification products of different lengths can be clamped and used, thereby expanding the calibration range of the flowmeter.

[0009] Optionally, a sliding block is horizontally fixed on the side end surface of the moving platform close to the slide, and the sliding block is horizontally slidably assembled in the slide.

[0010] By adopting the above technical scheme, the sliding block on the moving platform is slidably assembled in the slide, and the laterally sliding moving platform is used to expand the moving path of the flowmeter during lateral calibration.

[0011] Optionally, a guide strip is vertically fixed on the vertical end surface of the moving platform, and a plurality of clamping holes are horizontally formed in the vertical end surface of the moving platform in the vertical direction.

[0012] By adopting the above technical scheme, the guide strip provided on the vertical end surface of the moving platform is used to vertically guide the vertical sliding of the lifting piece, change the insertion depth of the insertion electromagnetic flowmeter, and the clamping holes are used to control the anchoring height of the lifting piece.

[0013] Optionally, the lifting piece includes a lifting slide plate, which is horizontally arranged at the front of the moving platform and vertically slidably assembled in the guide strip.

[0014] By adopting the technical scheme, the sliding plate vertically slides with the guide strips on the vertical end face of the moving table, the vertical guide lifting member vertically slides, and the depth of the insertion type electromagnetic flowmeter is changed.

[0015] Optionally, a lifting electric telescopic rod is vertically fixed on the top of the vertical end face of the moving table, and an output end of the lifting electric telescopic rod is fixed on the lifting sliding plate.

[0016] By adopting the technical scheme, the moving table and the lifting electric telescopic rod extend to push the lifting sliding plate to vertically slide with the guide strips on the vertical end face of the moving table, and the depth of the insertion type electromagnetic flowmeter is changed.

[0017] Optionally, a hole seat is vertically fixed on the top surface of the lifting sliding plate, a clamping column is horizontally slidably assembled in the hole seat, a horizontal electric telescopic rod is horizontally fixed on the top surface of the lifting sliding plate, and an output end of the horizontal electric telescopic rod is fixed on the clamping column.

[0018] By adopting the technical scheme, in use, in order to ensure the height stability of the lifting sliding plate when sliding downward, when the horizontal electric telescopic rod is retracted when sliding, the clamping column is pulled to horizontally slide in the hole seat, the clamping column is pulled out of the clamping hole in the vertical end face of the moving table, the lifting sliding plate vertically slides on the guide strips on the vertical end face of the moving table, when reaching a suitable height, the horizontal electric telescopic rod is started to extend to push the clamping column to be inserted into the clamping hole in the vertical end face of the moving table, and the lifting sliding plate is anchored on the vertical end face of the moving table.

[0019] Optionally, a fixed clamping plate is vertically fixed on one side of the bottom surface of the lifting sliding plate, and a moving clamping plate is vertically arranged on the other side of the bottom surface of the lifting sliding plate.

[0020] By adopting the technical scheme, the fixed clamping plate is vertically fixed on the bottom surface of the lifting sliding plate, and the fixed clamping plate cooperates with the moving clamping plate to clamp the insertion type flowmeter.

[0021] Optionally, a threaded hole plate is vertically fixed on the vertical end face of the side of the lifting sliding plate away from the moving table, a clamping screw is horizontally and threadedly assembled in the threaded hole plate, and an end portion of the clamping screw is rotatably connected to the moving clamping plate.

[0022] By adopting the technical scheme, in use, the clamping screw on the threaded hole plate is rotated to push the moving clamping plate to horizontally move, and the fixed clamping plate cooperates with the moving clamping plate to clamp the insertion type flowmeter.

[0023] In summary, the present application comprises at least one of the following beneficial technical effects: the plug-in electromagnetic flowmeter to be calibrated is vertically assembled below the lifting member, the servo motor on the moving table is rotated by using the control cabinet during calibration, the driving gear at the output end of the servo motor is rotated, the rack on the guide assembly is driven to move, the moving table is driven to run horizontally on the slide of the truss, the plug-in electromagnetic flowmeter is driven to run horizontally in the calibration water tank, the truss is driven to move at a constant speed in a straight line by the servo motor, when running, the water flow passing through the flow guide pipe of the plug-in flowmeter generates an infrared pulse which is compared with the output pulse of the servo motor, so as to calibrate the plug-in flowmeter, and then the calibration detection length is extended by using the horizontal extension of the truss, and the length of the calibration water tank is used, the moving table moves horizontally on the guide assembly, the moving path of the flowmeter is expanded during calibration, the same specification and different length products are clamped for use, and the calibration range of the flowmeter is expanded. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a front view of the embodiment of the present application.

[0025] Figure 2 is a side view of the embodiment of the present application.

[0026] Figure 3 is a top view of the embodiment of the present application.

[0027] Figure 4 is a structure schematic diagram of the moving table in a disassembled state of the embodiment of the present application.

[0028] Figure 5 is a structure schematic diagram of the lifting member in a disassembled state of the embodiment of the present application.

[0029] BRIEF DESCRIPTION OF DRAWINGS: 1, truss; 2, calibration water tank; 3, control cabinet; 3, control cabinet; 4, guide assembly; 41, guide frame; 42, slide; 43, rack; 5, moving table; 51, sliding block; 52, guide bar; 53, clamping hole; 54, lifting member; 541, lifting slide; 542, hole seat; 543, clamping column; 544, horizontal electric telescopic rod; 545, fixed clamping plate; 546, threaded hole plate; 547, moving clamping plate; 548, clamping screw; 6, servo motor; 61, driving gear; 7, lifting electric telescopic rod. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] The embodiment of the present application discloses a calibration device for a plug-in electromagnetic flowmeter. Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides a kind of calibration device of insertion electromagnetic flowmeter, including truss 1, calibration water tank 2, control machine box 3, guide assembly 4 and mobile station 5, truss 1 is transversely assembled and is provided with multiple, and the bottom of truss 1 is horizontally fixed with calibration water tank 2, guide assembly 4 is set in the front of truss 1, and guide assembly 4 is set above calibration water tank 2, guide assembly 4 includes guide frame 41, the top surface of guide frame 41 is horizontally slidably assembled with mobile station 5, and servo motor 6 is vertically fixed on the side end surface of mobile station 5 close to truss 1, and the output of servo motor 6 is horizontally fixed with driving gear 61, the side vertical end surface of truss 1 close to guide assembly 4 is horizontally fixed with slide bar 42, and rack 43 is horizontally fixed on the upper portion of slide bar 42, and rack 43 is engaged with driving gear 61, the side vertical sliding assembly of mobile station 5 away from guide frame 41 is vertically assembled with lifting piece 54, and insertion electromagnetic flowmeter is vertically assembled below lifting piece 54, one end of truss 1 is fixed with control machine box 3, and control machine box 3 is used to control the operation of servo motor 6.

[0032] By adopting the above technical scheme, the insertion electromagnetic flowmeter to be calibrated is vertically assembled below the lifting piece 54 in use, and the servo motor 6 on the mobile station 5 is rotated by using the control machine box 3 during calibration, to drive the driving gear 61 at the output end of the servo motor 6 to rotate, to drive the rack 43 on the guide assembly 4 to move upwards, to drive the mobile station 5 to move laterally on the slide bar 42 of the truss 1, to drive the insertion electromagnetic flowmeter to move laterally in the calibration water tank 2, the truss 1 is driven to move at a uniform speed in a straight line by the servo motor 6, and when water flows through the magnetic field perpendicular to the flow direction of the insertion flowmeter, an electromotive force is generated in the liquid, which can be detected by the electrodes located on the pipe wall, the electrodes transmit the detected signal to the transducer, and the transducer converts the signal into flow rate information, the mobile station 5 moves laterally on the slide bar 42 of the truss 1 driven by the servo motor 6 to generate a moving speed, to drive the insertion flowmeter to move laterally in the water tank 2 to simulate the flow rate of the water flow in the calibration water tank 2, and the flow rate data measured by the insertion electromagnetic flowmeter is compared with the infrared pulse movement data generated by the movement of the servo motor 6, and whether the output signal of the flowmeter accurately reflects the actual flow rate of the fluid is adjusted or verified according to the numerical difference between the two, to calibrate the insertion flowmeter, and then the calibration detection length is extended laterally by the truss 1 in use, and the length of the calibration water tank 2 is used, the mobile station 5 moves horizontally on the guide assembly 4, the moving path of the flowmeter is expanded during calibration, to meet the clamping use of products of the same specification and different lengths, and the calibration range of the flowmeter is expanded.

[0033] Refer to Figure 1 , Figure 2 , Figure 3 And Figure 4The mobile platform 5 is horizontally fixed with a sliding block 51 on one side end surface of the slide bar 42, and the sliding block 51 is horizontally slidingly assembled in the slide bar 42. The sliding block 51 on the mobile platform 5 is slidingly assembled in the slide bar 42, and the mobile platform 5 is used for lateral calibration of the flowmeter moving path expansion. The vertical end surface of the mobile platform 5 is vertically fixed with a guide bar 52, and a plurality of clamping holes 53 are horizontally arranged on the vertical end surface of the mobile platform 5. The guide bar 52 arranged on the vertical end surface of the mobile platform 5 is used for vertically guiding the vertical sliding of the lifting piece 54, and changing the insertion depth of the plug-in electromagnetic flowmeter. The clamping hole 53 is used for controlling the anchoring height of the lifting piece 54.

[0034] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The lifting piece 54 includes a lifting slide plate 541, which is horizontally arranged on the front of the mobile platform 5 and is vertically slidingly assembled in the guide bar 52. The lifting slide plate 541 vertically slides with the guide bar 52 on the vertical end surface of the mobile platform 5, vertically guides the vertical sliding of the lifting piece 54, and changes the insertion depth of the plug-in electromagnetic flowmeter. The vertical end surface of the mobile platform 5 is vertically fixed with a lifting electric telescopic rod 7, and the output end of the lifting electric telescopic rod 7 is fixed on the lifting slide plate 541. The mobile platform 5 and the lifting electric telescopic rod 7 extend to push the lifting slide plate 541 to vertically slide on the guide bar 52 on the vertical end surface of the mobile platform 5, so as to change the insertion depth of the plug-in electromagnetic flowmeter by vertical movement. The top surface of the lifting slide plate 541 is vertically fixed with a hole seat 542, the hole seat 542 is horizontally slidingly assembled with a clamping column 543, the top surface of the lifting slide plate 541 is horizontally fixed with a horizontal electric telescopic rod 544, and the output end of the horizontal electric telescopic rod 544 is fixed on the clamping column 543. In use, in order to ensure the height stability of the lifting slide plate 541 when sliding downward, the horizontal electric telescopic rod 544 is retracted when sliding, the clamping column 543 is pulled to horizontally slide in the hole seat 542, the clamping column 543 is pulled out of the clamping hole 53 on the vertical end surface of the mobile platform 5, the lifting slide plate 541 vertically slides on the guide bar 52 on the vertical end surface of the mobile platform 5, and when reaching the appropriate height, the horizontal electric telescopic rod 544 is started to extend to push the clamping column 543 to be inserted into the clamping hole 53 on the vertical end surface of the mobile platform 5, so as to anchor the lifting slide plate 541 on the vertical end surface of the mobile platform 5.

[0035] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The bottom side of the lifting slide 541 is vertically fixed with a fixed clamping plate 545, and the other side of the bottom side of the lifting slide 541 is vertically provided with a moving clamping plate 547. The fixed clamping plate 545 is vertically fixed on the bottom side of the lifting slide 541, and cooperates with the moving clamping plate 547 to clamp the plug-in flowmeter. The vertically end face of the side of the lifting slide 541 away from the moving table 5 is vertically fixed with a threaded hole plate 546, and the threaded hole plate 546 is horizontally screwed with a clamping screw 548, and the end of the clamping screw 548 is rotatably connected to the moving clamping plate 547. In use, the clamping screw 548 on the threaded hole plate 546 is rotated to push the moving clamping plate 547 to horizontally move, and the fixed clamping plate 545 cooperates with the moving clamping plate 547 to clamp the plug-in flowmeter.

[0036] The implementation principle of the calibration device for the plug-in electromagnetic flowmeter is as follows: in use, the plug-in electromagnetic flowmeter to be calibrated is vertically assembled below the lifting member 54, and in calibration, the servo motor 6 on the moving table 5 is controlled to rotate by the control cabinet 3, the driving gear 61 at the output end of the servo motor 6 is driven to rotate, the rack 43 on the guide assembly 4 is driven to move, the moving table 5 is driven to move laterally on the slide 42 of the truss 1, the plug-in electromagnetic flowmeter is driven to move laterally in the calibration water tank 2, the truss 1 is driven to move at a constant speed in a straight line by the servo motor 6, and when moving, the water flow passing through the flow guide pipe of the plug-in flowmeter generates an infrared pulse, which is compared with the output pulse of the servo motor 6, so that the plug-in flowmeter is calibrated.

[0037] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A calibration device for an insertion electromagnetic flowmeter, characterized in that, The utility model provides a kind of water quality calibration device, including truss (1), calibration water tank (2), control machine case (3), guide assembly (4) and mobile station (5), the truss (1) is transversely assembled and is provided with multiple, and the bottom of truss (1) is horizontally fixed with the calibration water tank (2), the guide assembly (4) is arranged in truss (1) front, and guide assembly (4) is arranged above calibration water tank (2), the guide assembly (4) includes guide frame (41), the top surface of guide frame (41) is horizontally slidably assembled with mobile station (5), and servo motor (6) is vertically fixed on the side end surface of mobile station (5) close to truss (1), and the output of servo motor (6) is horizontally fixed with driving gear (61), the side vertical end surface of truss (1) close to guide assembly (4) is horizontally fixed with slide bar (42), and the upper portion of slide bar (42) is horizontally fixed with rack (43), and rack (43) engages with driving gear (61), the side vertical sliding assembly of mobile station (5) away from guide frame (41) is vertically assembled with lifting piece (54), and plug-in electromagnetic flowmeter is vertically assembled below lifting piece (54), one end of the truss (1) is fixed with the control machine case (3), and control machine case (3) is used to control servo motor (6) operation.

2. A calibration device for an insertion electromagnetic flowmeter according to claim 1, characterized in that: The side end surface of the mobile station (5) close to the slide bar (42) is horizontally fixed with a sliding block (51), and the sliding block (51) is horizontally slidably assembled in the slide bar (42).

3. A calibration device for an insertion electromagnetic flowmeter according to claim 2, characterized in that: A guide bar (52) is vertically fixed on the vertical end surface of the mobile station (5), and a plurality of clamping holes (53) are horizontally formed in the vertical end surface of the mobile station (5) in the vertical direction.

4. A calibration device for an insertion electromagnetic flowmeter according to claim 3, characterized in that: The lifting piece (54) includes a lifting slide plate (541), which is horizontally arranged at the front of the mobile station (5) and vertically slidably assembled on the guide bar (52).

5. A calibration device for an insertion electromagnetic flowmeter according to claim 4, characterized in that: A lifting electric telescopic rod (7) is vertically fixed on the vertical end surface of the mobile station (5), and the output end of the lifting electric telescopic rod (7) is fixed on the lifting slide plate (541).

6. A calibration device for an insertion electromagnetic flowmeter according to claim 5, characterized in that: A hole seat (542) is vertically fixed on the top surface of the lifting slide plate (541), and a clamping column (543) is horizontally slidably assembled in the hole seat (542).

7. A calibration device for an insertion electromagnetic flowmeter according to claim 6, characterized in that: A horizontal electric telescopic rod (544) is horizontally fixed on the top surface of the lifting slide plate (541), and the output end of the horizontal electric telescopic rod (544) is fixed on the clamping column (543).

8. A calibration device for an insertion electromagnetic flowmeter according to claim 7, characterized in that: One end of the clamping column (543) is inserted into the clamping hole (53). A fixed clamping plate (545) is vertically fixed on one side of the bottom surface of the lifting slide plate (541), and a moving clamping plate (547) is vertically arranged on the other side of the bottom surface of the lifting slide plate (541). A threaded hole plate (546) is vertically fixed on the vertical end surface of the side of the lifting slide plate (541) away from the mobile station (5), and a clamping screw (548) is horizontally and threadedly assembled in the threaded hole plate (546), and the end of the clamping screw (548) is rotatably connected to the moving clamping plate (547).

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