CN218973591U

CN218973591U - Novel flowmeter calibration device

Info

Publication number: CN218973591U
Application number: CN202223092022.4U
Authority: CN
Inventors: 张旭朋
Original assignee: Nexon Electronics Inc
Current assignee: Nexon Electronics Inc
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-05-05
Anticipated expiration: 2032-11-21

Abstract

The utility model relates to the technical field of flowmeter calibration, in particular to a novel flowmeter calibration device, which comprises a water storage tank, a flowmeter to be calibrated and a standard flowmeter, wherein the upper end of the water storage tank is fixedly connected with a water outlet pipe, the right end of the water outlet pipe is fixedly connected with a water pump, the lower end of the water storage tank is fixedly provided with a water pipe III, the right end of the water pipe is fixedly provided with a connecting component which can enable the water pipe III and the flowmeter to be calibrated to be installed together, the calibration flowmeter and the standard flowmeter are installed through the connecting component, the calibration flowmeter and the standard flowmeter are conveniently detached and installed in threaded connection, the two flowmeters are exchanged in front-back sequence, two groups of numerical values are detected, the detection results are compared, the influence of resistance to the detection results when water flows is reduced, and the detection results are more accurate; meanwhile, the utility model has simple structure and high economic benefit.

Description

Novel flowmeter calibration device

Technical Field

The utility model relates to the technical field of flowmeter calibration, in particular to a novel flowmeter calibration device.

Background

The flowmeter indicates the measured flow rate and/or the total amount of fluid in a selected time interval, simply a meter for measuring the flow rate of fluid in a pipe or open channel; the flow meter is divided into a differential pressure type flow meter, a rotameter, a throttling flow meter, a slit flow meter, a volumetric flow meter, an electromagnetic flow meter, an ultrasonic flow meter and the like; classified by medium: a liquid flow meter and a gas flow meter.

The working principle of the liquid flow calibration device in China is as follows: and installing the detected flowmeter on a checking device, starting a liquid circulation system to enable liquid to flow through the flowmeter and the detected flowmeter, synchronously operating the detected flowmeter and the flowmeter, and comparing output flow values of the detected flowmeter and the flowmeter, so as to determine the metering accuracy and repeatability of the detected flowmeter.

CN201772921U discloses a mass flowmeter calibration device; the flow meter has the advantages of simple structure and reliable function, can improve the calibration precision of the flow meter, and reduces the labor intensity of workers; the structure is as follows: the device comprises a container cylinder, wherein the container cylinder is sequentially connected with a pump motor, a flowmeter and a flowmeter to be calibrated through pipelines; the pump motor, the flowmeter and the flowmeter to be calibrated are all connected with the PLC control device; however, when the water flow passes through the flowmeter and is influenced by a certain resistance, and flows to the flowmeter to be calibrated through the flowmeter, the detection result is easy to have errors due to the influence of the resistance on the water flow.

Therefore, it is necessary to invent a new flow meter verification device.

Disclosure of Invention

Therefore, the novel flowmeter calibration device is provided by the utility model, the water pipe III and the flowmeter to be calibrated are installed through the connecting component, the calibration flowmeter and the flowmeter are convenient to detach and install, and the positions of the water pipe III and the flowmeter are exchanged, so that the problem that the detection result is easy to have errors due to the influence of resistance on water flow is solved.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a novel flowmeter verification device, includes the water storage tank, waits to check up flowmeter and flowmeter, water storage tank upper end fixedly connected with outlet pipe, outlet pipe right-hand member fixedly connected with water pump, water storage tank lower extreme fixed mounting has the raceway three, the three right-hand member fixed mounting of raceway has the coupling assembling that enables the raceway three and wait to check up flowmeter to install together.

Preferably, the right end of the water outlet pipe is fixedly connected with a water inlet of a water pump, the water outlet of the water pump is fixedly connected with a first water delivery pipe, and the outer wall of the water outlet pipe is fixedly provided with a water outlet valve.

Preferably, the three outer walls of the water delivery pipe are fixedly provided with water valves.

Preferably, the lower end of the water pipe is fixedly arranged at the upper end of the flow meter through the connecting component, the lower end of the flow meter is fixedly connected with a second water pipe through the connecting component, the lower end of the second water pipe is fixedly provided with a flow meter to be checked through the connecting component, and the lower end of the flow meter to be checked is fixedly arranged at the three right ends of the water pipe through the connecting component.

Preferably, the connecting assembly comprises a mounting block, a metal hexagonal nut, an external threaded rod, an inner mounting rod, a water pipe sleeve, a first through hole, a rubber ring and a second through hole, wherein the water pipe sleeve is slidably mounted at the right end of the three outer walls of the water pipe sleeve, the rubber ring is fixedly mounted at the bottom end of the inner wall of the water pipe sleeve and is in a round table shape, the second through hole is formed in the inner wall of the rubber ring, the first through hole is formed in the bottom of the water pipe sleeve, and the third water pipe sleeve is slidably mounted on the inner wall of the water pipe sleeve through the first through hole and the second through hole.

Preferably, the installation piece fixed mounting is at the upper and lower both ends of treating the check-up flowmeter, metal hexagon nut fixed mounting is at the installation piece lower extreme, external screw rod fixed mounting is at the installation piece lower extreme, installation interior pole fixed mounting is at external screw rod lower extreme, installation interior pole and external screw rod are hollow cylinder.

Preferably, the water pipe sleeve is provided with a thread structure, the water pipe sleeve is connected with the external threaded rod in a threaded manner, and the rubber ring is tightly attached to the water pipe sleeve.

The beneficial effects of the utility model are as follows:

1. the check flow meter and the flow meter are installed through the connecting component, the check flow meter and the flow meter are conveniently detached and installed in a threaded connection mode, the two flow meters are exchanged in front-back sequence, two groups of numerical values are detected, and the detection results are compared, so that the influence of resistance to the detection results when water flows is reduced, and the detection results are more accurate; meanwhile, the utility model has simple structure and high economic benefit;

2. the rubber ring can enter the gap between the water pipe sleeve III and the water pipe sleeve, the rubber ring is deformed by extrusion along with the connection of the water pipe sleeve and the external thread rod, and finally the rubber ring is clung to the outer wall of the water pipe sleeve III, so that the water pipe sleeve III and the installation inner rod form interference fit, the friction force between the water pipe sleeve III and the installation inner rod is larger than the impact force of water flow on the installation inner rod, and the installation structure of the device is more stable.

Drawings

FIG. 1 is a diagram of a verification structure provided by the present utility model;

FIG. 2 is a diagram of a verification structure provided by the present utility model;

FIG. 3 is a diagram of the installation structure of the flowmeter to be verified;

FIG. 4 is a block diagram of a flowmeter to be verified according to the present utility model;

FIG. 5 is a view showing the installation of a water jacket according to the present utility model;

FIG. 6 is a view showing the internal structure of the water pipe sleeve provided by the utility model;

FIG. 7 is a top view of a water jacket provided by the present utility model;

fig. 8 is a bottom view of the water jacket according to the present utility model.

In the figure: the water storage tank 1, a first water delivery pipe 2, a water outlet valve 3, a water pump 4, a flowmeter 5, a second water delivery pipe 6, a flowmeter 7 to be verified, a third water delivery pipe 8, a water closing valve 9, a mounting block 10, a metal hexagonal nut 11, an external threaded rod 12, a mounting inner rod 13, a water pipe sleeve 14, a first through hole 1401, a rubber ring 15, a second through hole 1501 and a water outlet pipe 20.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Referring to fig. 1-8, the novel flowmeter calibration device provided by the utility model comprises a water storage tank 1, a flowmeter 7 to be calibrated and a flowmeter 5, wherein the upper end of the water storage tank 1 is fixedly connected with a water outlet pipe 20, the right end of the water outlet pipe 20 is fixedly connected with a water pump 4, the lower end of the water storage tank 1 is fixedly provided with a water pipe III 8, and the right end of the water pipe III 8 is fixedly provided with a connecting component which enables the water pipe III 8 and the flowmeter 7 to be calibrated to be mounted together.

Further, the right end of the water outlet pipe 20 is fixedly connected with a water inlet of the water pump 4, a water outlet of the water pump 4 is fixedly connected with a water delivery pipe I2, and a water outlet valve 3 is fixedly arranged on the outer wall of the water outlet pipe 20; the water pump 4 is a mechanism for delivering or pressurizing liquid, and transmits mechanical energy of a prime motor or other external energy to water flow so as to increase the energy of the water flow; the water outlet valve 3 can control water flow to flow out of the water storage tank 1, and is pressurized and conveyed into the first water conveying pipe 2 through the water pump 4;

further, the outer wall of the water pipe III 8 is fixedly provided with a water valve 9; the water closing valve 9 can control and regulate the water flow to return to the inside of the water storage tank 1;

further, the lower end of the first water pipe 2 is fixedly arranged at the upper end of the flowmeter 5 through a connecting component, the lower end of the flowmeter 5 is fixedly connected with a second water pipe 6 through the connecting component, the lower end of the second water pipe 6 is fixedly provided with a flowmeter 7 to be verified through the connecting component, and the lower end of the flowmeter 7 to be verified is fixedly arranged at the right end of a third water pipe 8 through the connecting component; the check flow meter 7 and the flow meter 5 are installed through the connecting assembly, the check flow meter 7 and the flow meter 5 are convenient to detach and install, the two flow meters are exchanged in front-back sequence, two groups of numerical values are detected, the detection results are compared, and the influence of resistance to the detection results when water flows is reduced;

further, the connecting assembly comprises a mounting block 10, a metal hexagonal nut 11, an external threaded rod 12, a mounting internal rod 13, a water pipe sleeve 14, a first through hole 1401, a rubber ring 15 and a second through hole 1501, wherein the water pipe sleeve 14 is slidably mounted at the right end of the outer wall of the third water pipe sleeve 8, the rubber ring 15 is fixedly mounted at the bottom end of the inner wall of the water pipe sleeve 14, the rubber ring 15 is in a round table shape, the second through hole 1501 is formed in the inner wall of the rubber ring 15, the first through hole 1401 is formed in the bottom of the water pipe sleeve 14, and the third water pipe sleeve 8 is slidably mounted on the inner wall of the water pipe sleeve 14 through the first through hole 1401 and the second through hole 1501; the rubber ring 15 can enter a gap between the water pipe III 8 and the water pipe sleeve 14, and the rubber ring 15 is tightly attached to the outer wall of the water pipe III 8 through extrusion deformation along with the tight connection between the water pipe sleeve 14 and the externally threaded rod 12, so that the water pipe III 8 and the mounting inner rod 13 form interference fit, and the friction force between the water pipe III 8 and the mounting inner rod 13 is larger than the impact force of water flow on the mounting inner rod 13;

further, the installation block 10 is fixedly installed at the upper end and the lower end of the flowmeter 7 to be verified, the metal hexagonal nut 11 is fixedly installed at the lower end of the installation block 10, the external threaded rod 12 is fixedly installed at the lower end of the installation block 10, the installation inner rod 13 is fixedly installed at the lower end of the external threaded rod 12, and the installation inner rod 13 and the external threaded rod 12 are hollow cylinders; the inner rod 13 and the outer threaded rod 12 are hollow cylinders, so that water can conveniently flow through the flowmeter 7 to be verified and the flowmeter 5 to be verified;

further, the water pipe III 8 is slidably mounted on the outer wall of the mounting inner rod 13, the water pipe III 8 is attached to the mounting inner rod 13, a thread structure is formed on the inner wall of the water pipe sleeve 14, the water pipe sleeve 14 is in threaded connection with the external threaded rod 12, and the rubber ring 15 is tightly attached to the water pipe III 8; the water pipe III 8, the check flowmeter 7 and the flowmeter 5 are installed through a threaded structure, so that the check flowmeter 7 and the flowmeter 5 are convenient to detach and install;

the application process of the utility model is as follows: the person skilled in the art will open the water outlet valve 3 and the water closing valve 9, carry to the raceway one 2 inside through the pressurization of water pump 4, rivers flow through flowmeter 5 from raceway one 2 and detect numerical value V1, detect numerical value V2 through treating check flowmeter 7 through raceway two 6 in the flow, close water outlet valve 3, carry back the rivers of pipeline inside water storage tank 1, close water valve 3, open water pipe sleeve 14 and change the position with flowmeter 5 and treating check flowmeter 7, restart the device, detect the numerical value V3 of treating check flowmeter 7 this moment, and numerical value V4 of flowmeter 5, if V1 and V3 numerical value are the same, V2 and V4 numerical value are the same, treat check flowmeter 7 and be qualified product, otherwise, treat check flowmeter 7 and be unqualified product.

The above description is of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.

Claims

1. The utility model provides a novel flowmeter verification device, includes water storage tank (1), waits to check flowmeter (7) and flowmeter (5), its characterized in that: the water storage tank is characterized in that the upper end of the water storage tank (1) is fixedly connected with a water outlet pipe (20), the right end of the water outlet pipe (20) is fixedly connected with a water pump (4), the lower end of the water storage tank (1) is fixedly provided with a water delivery pipe III (8), and the right end of the water delivery pipe III (8) is fixedly provided with a connecting component which enables the water delivery pipe III (8) and the flowmeter (7) to be verified to be installed together.

2. The novel flow meter verification device of claim 1, wherein: the right end of the water outlet pipe (20) is fixedly connected with a water inlet of the water pump (4), a water outlet of the water pump (4) is fixedly connected with a first water delivery pipe (2), and a water outlet valve (3) is fixedly arranged on the outer wall of the water outlet pipe (20).

3. The novel flow meter verification device of claim 1, wherein: the outer wall of the water delivery pipe III (8) is fixedly provided with a water closing valve (9).

4. The novel flow meter verification device of claim 2, wherein: the utility model discloses a flowmeter, including raceway (5) and flowmeter, including raceway (7) and flowmeter (7), the raceway (5) lower extreme is through coupling assembling fixed mounting in flowmeter (5) upper end, flowmeter (5) lower extreme is through coupling assembling fixedly connected with raceway two (6), raceway two (6) lower extreme is through coupling assembling fixed mounting has to wait to check flowmeter (7), wait to check flowmeter (7) lower extreme is through coupling assembling fixed mounting in raceway three (8) right-hand member.

5. The novel flow meter verification device of claim 1, wherein: coupling assembling includes installation piece (10), metal hexagon nut (11), external screw rod (12), installation interior pole (13), water pipe cover (14), through-hole one (1401), rubber circle (15) and through-hole two (1501), water pipe cover (14) slidable mounting is at three (8) outer wall right-hand member of raceway, rubber circle (15) fixed mounting is in water pipe cover (14) inner wall bottom, and rubber circle (15) are round platform form, through-hole two (1501) have been seted up to rubber circle (15) inner wall, through-hole one (1401) have been seted up to water pipe cover (14) bottom, three (8) of raceway are through-hole one (1401) and through-hole two (1501) slidable mounting at water pipe cover (14) inner wall.

6. The novel flow meter verification device of claim 5, wherein: the installation piece (10) fixed mounting is at the upper and lower both ends of treating check-up flowmeter (7), metal hexagon nut (11) fixed mounting is at installation piece (10) lower extreme, external screw rod (12) fixed mounting is at installation piece (10) lower extreme, interior pole (13) fixed mounting of installation is at external screw rod (12) lower extreme, interior pole (13) of installation and external screw rod (12) are hollow cylinder.

7. The novel flow meter verification device of claim 6, wherein: the water pipe third (8) is slidably mounted on the outer wall of the inner mounting rod (13), the water pipe third (8) is attached to the inner mounting rod (13), a threaded structure is formed in the inner wall of the water pipe sleeve (14), the water pipe sleeve (14) is in threaded connection with the external threaded rod (12), and the rubber ring (15) is tightly attached to the water pipe third (8).