Pump body flow metering verification testing device

Abstract

The utility model relates to the technical field of testing devices, and discloses a pump body flow metering verification testing device which comprises a pedestal, a fixing assembly is arranged at the top of the pedestal, a flow control assembly is arranged on the side wall of the pedestal, the fixing assembly comprises a plurality of sliding tables, the sliding tables are arranged in the pedestal, and the flow control assembly is arranged on the side wall of the pedestal. A transverse groove is formed in the pedestal, the sliding tables are slidably connected to the interior of the transverse groove, the top of each sliding table is fixedly connected with a fixing plate, the side wall of each fixing plate is fixedly connected with a clamping table, the side wall of each sliding table is fixedly connected with a side plate, the bottom of each side plate is fixedly connected with a transmission shaft, and a rotating air cylinder is connected to the interior of the pedestal. According to the utility model, the pump body is effectively fixed through the displacement of the clamping table on the side wall of the fixing plate, and the pump body is effectively fixed, so that the rotating speed measurement error of a turbine blade caused by the transmission of the vibration of the pump body to the flowmeter can be avoided, and the accuracy of flow measurement data is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to test device technical field especially relates to a pump body flow measurement calibration test device. BACKGROUND

[0002] The pump body flow measurement calibration test device has extremely key significance in industrial production and scientific research fields, it can accurately determine the flow data of the pump body, thereby guaranteeing the reliability and efficiency of the pump body in various application scenarios, whether in the industrial fluid conveying link such as chemical industry, petroleum or in the municipal engineering field such as urban water supply, sewage treatment, provides indispensable technical support for pump body performance evaluation and quality control.

[0003] The conventional pump body flow measurement calibration test device is mainly composed of test pipeline, flow measurement instrument, pressure sensor, power system and control unit etc. structure. The test pipeline is used as the conveying channel of fluid, generally adopts metal material, has certain strength and sealing property. Flow measurement instrument such as electromagnetic flowmeter, turbine flowmeter etc. is used to accurately measure the flow size of fluid, and the measurement signal is transmitted to the control unit. The pressure sensor is installed at the specific position of the pipeline, and the pressure change of fluid at different parts is monitored. The power system is mostly motor equipment, provides power source for the flow of fluid, so that the fluid can run stably in the test pipeline. The control unit is responsible for receiving and processing the data from the flow measurement instrument and pressure sensor, realizes the control and data recording of the whole test process.

[0004] The base of the conventional device often adopts relatively simple flat plate structure, lacks sufficient shock absorption and anti-displacement design, under the vibration generated by the pump body operation and external environmental interference, is easy to appear to sway. Moreover, connecting components such as bolts, nuts etc. can appear loose phenomenon after long-term use, due to the lack of effective anti-loose design, cannot continuously maintain the fastening state. This unstable fixation can bring many adverse effects, in the aspect of flow measurement, the shaking of the device can cause the change of the measurement datum of the measuring instrument, makes the measurement data appear deviation, cannot accurately reflect the real flow of the pump body, influences the evaluation and quality determination of the pump body performance. In the safety aspect, the unstable device can cause the rupture of the pipeline connection due to violent shaking, causes fluid leakage, causes the safety threat to the surrounding environment and operating personnel, also can influence the normal progress of the test work, increases the cost and time of equipment repair and maintenance. UTILITY MODEL CONTENTS

[0005] In order to make up for the above insufficient, the utility model provides a pump body flow measurement calibration test device, aims at improving the problem that the shaking of the device can cause the change of the measurement datum of the measuring instrument, makes the measurement data appear deviation, cannot accurately reflect the real flow of the pump body.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: a pump body flow metering calibration test device, including pedestal, the top of pedestal is provided with fixed component, the lateral wall of pedestal is provided with flow control component,

[0007] The fixed component includes a sliding table, a plurality of sliding tables are arranged in the interior of the pedestal, a horizontal groove is formed in the interior of the pedestal, the sliding table is slidingly connected in the interior of the horizontal groove, the top of each sliding table is fixedly connected with a fixed plate, the lateral wall of the fixed plate is fixedly connected with a clamping table, the lateral wall of the sliding table is fixedly connected with a side plate, the bottom of the side plate is fixedly connected with a transmission shaft, a rotary air cylinder is connected in the interior of the pedestal, the output end of the rotary air cylinder is fixedly connected with a transmission disc, a plurality of inner grooves are formed in the interior of the transmission disc, and the transmission shaft is slidingly connected in the interior of the inner groove.

[0008] Further, the flow control component includes a side table, and the side table is fixedly connected to the lateral wall of the pedestal.

[0009] Further, the lateral wall of the side table is fixedly connected with a supporting table, and the top of the supporting table is fixedly connected with a connecting bottom ring.

[0010] Further, a rotating ring is rotatably connected in the interior of the connecting bottom ring, and a fixed ring is fixedly connected in the interior of the rotating ring.

[0011] Further, a plurality of sliding frames are arranged between the rotating ring and the fixed ring, and an inclined groove is formed in the interior of each sliding frame.

[0012] Further, a bottom plate is fixedly connected in the interior of the connecting bottom ring, and a plurality of intersecting grooves are formed in the interior of the bottom plate.

[0013] Further, a plurality of sliding shafts are arranged in the interior of the bottom plate, and a flow plate is rotatably connected to the outer wall of the sliding shaft.

[0014] Further, the sliding shaft is slidingly connected in the interior of the intersecting groove, and the sliding shaft is slidingly connected in the interior of the inclined groove.

[0015] The utility model has the advantages of:

[0016] 1、in the utility model, first, the rotary air cylinder outputs rotary power to the transmission disc, and finally, the horizontal sliding of the sliding table further drives the displacement of the fixed plate at the top of the sliding table and the clamping table on the lateral wall of the fixed plate, so that the pump body is effectively fixed, the effective fixing of the pump body can avoid the transmission of the pump body vibration to the flow meter, so that the error of the rotational speed measurement of the turbine blade is avoided, and the accuracy of the flow measurement data is ensured.

[0017] 2、The utility model discloses, through the rotation of the ring, the rotation of the flow plate of the sliding axle outer wall is caused finally through the track restraint of the cross groove, the synchronous movement of multiple flow plates realizes the flow regulation of the bottom ring, and the suitable test flow of the pump body of different flow demand is set, and then the performance of the pump body is comprehensively and accurately evaluated, including the key performance index such as flow head curve, efficiency curve. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A three-dimensional view of a pump body flow metering calibration test device is provided for the utility model;

[0019] Figure 2 A groove structure schematic view of a pump body flow metering calibration test device is provided for the utility model;

[0020] Figure 3 A rotating ring structure schematic view of a pump body flow metering calibration test device is provided for the utility model;

[0021] Figure 4 A bottom plate structure schematic view of a pump body flow metering calibration test device is provided for the utility model.

[0022] Legend:

[0023] 1, pedestal; 2, horizontal groove; 3, sliding table; 4, fixed plate; 5, clamping table; 6, side plate; 7, transmission shaft; 8, rotary cylinder; 9, transmission disc; 10, inner groove; 11, side table; 12, support table; 13, rotating ring; 14, fixed ring; 15, sliding frame; 16, inclined groove; 17, bottom ring; 18, bottom plate; 19, cross groove; 20, flow plate; 21, sliding axle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Reference Figures 1-2 An embodiment provided by the utility model: a pump body flow metering calibration test device, including pedestal 1, the top of pedestal 1 is provided with fixed assembly, and the side wall of pedestal 1 is provided with flow control assembly;

[0026] The fixed assembly comprises a sliding table 3, a plurality of sliding tables 3 are arranged in the pedestal 1, a horizontal groove 2 is arranged in the pedestal 1, the sliding table 3 is slidably connected in the horizontal groove 2, the top of each sliding table 3 is fixedly connected with a fixed plate 4, the side wall of the fixed plate 4 is fixedly connected with a clamping table 5, the side wall of the sliding table 3 is fixedly connected with a side plate 6, the bottom of the side plate 6 is fixedly connected with a transmission shaft 7, a rotary cylinder 8 is connected in the pedestal 1, the output end of the rotary cylinder 8 is fixedly connected with a transmission disc 9, a plurality of inner grooves 10 are arranged in the transmission disc 9, and the transmission shaft 7 is slidably connected in the inner groove 10.

[0027] Specifically, when the task of fixing the test pump body is first faced, the rotary cylinder 8 needs to be started, and after receiving the starting signal and being forced, the rotary cylinder 8 outputs rotary power to the transmission disc 9, so that the transmission disc 9 starts to rotate. With the rotation of the transmission disc 9, the positions of the plurality of inner grooves 10 arranged in the transmission disc 9 also change accordingly. Since the transmission shaft 7 is in the inner groove 10 and is slidably connected with the inner groove 10, when the position of the inner groove 10 changes, the transmission shaft 7 will be subjected to a force. The transmission shaft 7 transmits the force to the sliding table 3 through the connection with the side plate 6, and pushes and pulls the sliding table 3. After being forced, the sliding table 3 can slide in the horizontal direction in the horizontal groove 2 in the pedestal 1. The horizontal sliding of the sliding table 3 is not an isolated movement, but further drives the fixed plate 4 at the top of the sliding table 3 and the clamping table 5 on the side wall of the fixed plate 4 to displace together. Through the change of the position of the clamping table 5, the pump body is finally effectively fixed. This way of effectively fixing the pump body is of great significance. Because in the test process, if the pump body is not firmly fixed, the vibration generated by the pump body will be transmitted to the flowmeter. The rotational speed measurement of the turbine blade in the flowmeter plays a decisive role in the accuracy of the flow measurement data. The vibration of the pump body will interfere with the normal rotation of the turbine blade, and then cause errors in the rotational speed measurement, so that the finally obtained flow measurement data is inaccurate. Through the above fixing method, the measurement error caused by the vibration of the pump body can be effectively avoided, thereby effectively ensuring the accuracy of the flow measurement data, providing reliable data support for related tests, experiments and engineering applications, and ensuring that the system can normally and efficiently operate.

[0028] Reference Figure 3 and Figure 4The flow control assembly comprises a side table 11 fixedly connected to the side wall of the pedestal 1, a supporting table 12 fixedly connected to the side wall of the side table 11, a connecting bottom ring 17 fixedly connected to the top of the supporting table 12, a rotating ring 13 rotatably connected to the inside of the connecting bottom ring 17, a fixed ring 14 fixedly connected to the inside of the rotating ring 13, a plurality of sliding frames 15 arranged between the rotating ring 13 and the fixed ring 14, an inclined groove 16 formed in each sliding frame 15, a bottom plate 18 fixedly connected to the inside of the connecting bottom ring 17, a plurality of cross grooves 19 formed in the inside of the bottom plate 18, a plurality of sliding shafts 21 arranged in the inside of the bottom plate 18, and a flow plate 20 rotatably connected to the outer wall of the sliding shaft 21.

[0029] Specifically, when it is necessary to adjust the flow of the pump body, first manually rotate the rotating ring 13. After the rotating ring 13 is subjected to an external force, it will begin to rotate around its axis. Since the rotating ring 13 and the fixed ring 14 have a specific connection relationship, the rotation of the rotating ring 13 will drive the fixed ring 14 and the sliding frame 15 therebetween to move in a centripetal direction. In the displacement process of the plurality of sliding frames 15, the sliding shaft 21 arranged in the sliding frame 15 will be pushed due to the special trajectory of the inclined groove 16 on the sliding frame 15, thereby being forced to displace. The movement of the sliding shaft 21 is carried out in the cross groove 19 in the inside of the bottom plate 18. The special trajectory of the cross groove 19 plays a role in restraining and guiding the movement of the sliding shaft 21, so that the flow plate 20 connected to the outer wall of the sliding shaft 21 will rotate with the movement of the sliding shaft 21. When a plurality of flow plates 20 synchronously rotate in this way, the purpose of adjusting the flow of the connecting bottom ring 17 can be achieved. In this way, the test flow can be accurately set according to the pump body with different flow requirements. In this way, the performance of the pump body can be comprehensively and accurately evaluated, including the flow-head curve, the efficiency curve and other key performance indicators. These performance indicators are of great significance in understanding the working characteristics, working capacity and operating efficiency of the pump body, and can provide solid data basis and technical support for the selection, optimized design and reasonable application of the pump body in actual engineering, which helps to improve the running stability and reliability of the pump body under different working conditions, and reduce energy consumption and operating cost.

[0030] Working principle: first need to fix the test pump body, start rotating cylinder 8, rotating cylinder 8 to the transmission disc 9 output power, transmission disc 9 at this time rotates and drives its inside the multiple inner groove 10 change their own position, because the transmission shaft 7 in the inner groove 10 inside the sliding so that the transmission shaft 7 will be stressed and through the connection with the side plate 6 to the sliding table 3 push-pull, sliding table 3 after being stressed can be in the horizontal groove 2 in the base 1 horizontal sliding, the horizontal sliding of sliding table 3 further drive its top fixed plate 4 and the fixed plate 4 side wall of the clamp table 5 displacement, from the realization of the effective fixation of pump body, effective fixation of pump body can avoid the vibration of pump body to the flowmeter and lead to the error of turbine blade speed measurement, so as to ensure the accuracy of flow measurement data, when the need to adjust the pump test flow, rotate the rotating ring 13, rotating ring 13 after being stressed will occur self-rotation, and through the connection between the fixed ring 14 and the rotating ring 13 drive the slide 15 between the fixed ring 14 and the rotating ring 13 centripetal displacement, multiple slide 15 in displacement, its inside the slide shaft 21 will be pushed by the track of the inclined groove 16, further make the slide shaft 21 displacement, the movement of the slide shaft 21 further occurs in the cross groove 19 in the bottom plate 18, and through the track of the cross groove 19 constraint make the flow plate 20 on the outer wall of the slide shaft 21 rotation, multiple flow plate 20 synchronous movement realizes the flow regulation of the continuous bottom ring 17, for different flow demand pump body set appropriate test flow, further comprehensive, accurate evaluation of pump performance, including flow head curve, efficiency curve and other key performance indicators.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application have, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. Pump body flow metering verification test device comprising a base (1), characterized in that: The pedestal (1) top is provided with a fixed component, the pedestal (1) side wall is provided with flow control assembly; The fixed component includes a sliding table (3), a plurality of sliding tables (3) are arranged in the pedestal (1), a horizontal groove (2) is formed in the pedestal (1), the sliding table (3) is slidably connected in the horizontal groove (2), the top of each sliding table (3) is fixedly connected with a fixed plate (4), the side wall of the fixed plate (4) is fixedly connected with a clamping table (5), the side wall of the sliding table (3) is fixedly connected with a side plate (6), the bottom of the side plate (6) is fixedly connected with a transmission shaft (7), the inside of the pedestal (1) is connected with a rotary air cylinder (8), the output end of the rotary air cylinder (8) is fixedly connected with a transmission disc (9), a plurality of inner grooves (10) are formed in the transmission disc (9), and the transmission shaft (7) is slidably connected in the inner grooves (10).

2. A pump body flow metrology verification test apparatus according to claim 1, wherein: The flow control assembly includes a side table (11), and the side table (11) is fixedly connected to the side wall of the pedestal (1).

3. A pump body flow metrology verification test apparatus according to claim 2, wherein: The side wall of the side table (11) is fixedly connected with a supporting table (12), and the top of the supporting table (12) is fixedly connected with a connecting bottom ring (17).

4. A pump body flow metrology verification test apparatus as claimed in claim 3, wherein: The inside of the connecting bottom ring (17) is rotatably connected with a rotating ring (13), and the inside of the rotating ring (13) is fixedly connected with a fixed ring (14).

5. A pump body flow metrology verification test apparatus as claimed in claim 4, wherein: A plurality of sliding frames (15) are arranged between the rotating ring (13) and the fixed ring (14), and an inclined groove (16) is formed in the inside of each sliding frame (15).

6. A pump body flow metrology verification test apparatus as claimed in claim 5, wherein: The inside of the connecting bottom ring (17) is fixedly connected with a bottom plate (18), and a plurality of intersecting grooves (19) are formed in the inside of the bottom plate (18).

7. A pump body flow metrology verification test apparatus as claimed in claim 6, wherein: A plurality of sliding shafts (21) are arranged in the inside of the bottom plate (18), and the outer wall of the sliding shaft (21) is rotatably connected with a flow plate (20).

8. A pump body flow metrology verification test apparatus as claimed in claim 7, wherein: The sliding shaft (21) is slidably connected in the intersecting groove (19), and the sliding shaft (21) is slidably connected in the inclined groove (16).

Images