CN211927034U

CN211927034U - Liquid flowmeter calibrating device

Info

Publication number: CN211927034U
Application number: CN202020982126.4U
Authority: CN
Inventors: 戴丽娜
Original assignee: Ningbo Metrology And Testing Institute
Current assignee: Ningbo Metrology And Testing Institute
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-11-13
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a liquid flowmeter calibrating device, include: the water storage tank is provided with a connecting pipe on the left side, a water pump is arranged on the left side of the connecting pipe, the water pump is communicated with the water storage tank through the connecting pipe, the output end of the water pump is provided with a water pipe, the side face of the water pipe is connected with a high-level water tank, and a controller is arranged on the surface of the high-level water tank. The utility model discloses the detection water of capacity is poured into in water storage box inside, through in the high-order water tank of water pump suction, the inside level sensor of a plurality of groups that sets up of high-order water tank, can control the water pump and let in quantitative detection water, it is fixed to guarantee to detect the water yield of water, install the flowmeter between first test tube and second test tube, water flows down along the test tube, the high-order water tank water level changes, the flow stability is unchangeable, can measure the liquid volume that the pipeline flowed out in a certain time, and then obtain the velocity of flow, can obtain standard flow, contrast with the flowmeter, in order to reach the calibration purpose.

Description

Liquid flowmeter calibrating device

Technical Field

The utility model relates to a flowmeter calibration technical field, more specifically are a liquid flowmeter calibrating device.

Background

The flowmeter is known by its english name flowmeter, which is defined by the national committee for the examination and determination of scientific and technical terms as: meters that indicate the measured flow rate and/or the total amount of fluid in a selected time interval. The flow meters are classified into a rotameter, a throttling flow meter, a slit flow meter, a volumetric flow meter, an electromagnetic flow meter, an ultrasonic flow meter, a weir, and the like. Classifying according to media: liquid flow meters and gas flow meters. Metering is on the eye of industrial production. The flow measurement is one of the components of the measurement science and technology, and has close relation with national economy, national defense construction and scientific research.

At present, calibration is carried out regularly to ensure the accuracy of the flowmeter, but the traditional calibration device has the following defects: 1. the traditional calibration device needs to use a water pump with high-precision flow control for testing, and has high manufacturing cost, high calibration cost and low repeated utilization rate; 2. traditional calibrating device need the installation at installation flow timing dismantles the bolt, wastes time and energy, the flowmeter of the multiple model of unable adaptation simultaneously. Therefore, a new technical solution needs to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid flowmeter calibrating device, this calibrating device pours into the detection water of capacity in water storage box inside, through the water pump suction head tank in, the head tank is inside to be set up a plurality of groups level sensor, can control the water pump and let in quantitative detection water, it is fixed to guarantee to detect the water yield of water, install the flowmeter between first test tube and second test tube, water flows down along the test tube, the head tank water level changes, the flow stability is unchangeable, can measure the liquid volume that the pipeline flows in the certain time, and then obtain the velocity of flow, can obtain standard flow, compare with the flowmeter, in order to reach the calibration purpose, satisfy the practical application demand.

In order to achieve the above object, the utility model provides a following technical scheme: a fluid flow meter prover device comprising: the water storage tank is provided with a connecting pipe on the left side, a water pump is arranged on the left side of the connecting pipe, the water pump is communicated with the water storage tank through the connecting pipe, the output end of the water pump is provided with a water pipe, the side surface of the water pipe is connected with a high-level water tank, the surface of the high-level water tank is provided with a controller, a plurality of groups of liquid level sensors are arranged in the high-level water tank, the liquid level sensors are arranged in a vertical structure and are electrically connected with the controller through leads, a first test pipe is arranged at the middle lower part of the high-level water tank, a first support is arranged at the lower part of the first test pipe, the first support is fixedly connected with the water storage tank through bolts, a slide rail is arranged at the upper right part of the water storage tank, a second support is arranged at the upper part of the slide rail, a second test pipe is arranged on the second support, the outlet of the, the side that both sides were equipped with spring and spring in the mounting disc is equipped with splint, splint are half arc structure setting and the inboard is equipped with the flexure strip, the flexure strip is reverse arc structure that sets up and passes through bolt and splint fixed connection, the inboard of spring is equipped with and contacts each other between fastening bolt and fastening bolt's the bottom and the splint, it is equipped with the flowmeter to install flange and flange upper portion between the mounting disc.

As a preferred embodiment of the present invention, the surface of the water service pipe is provided with the first valve and the surface of the first testing pipe is provided with the second valve, and the first valve and the second valve are both solenoid valves and are electrically connected to the controller through wires.

As an optimal implementation manner of the utility model, high flush tank's surface is equipped with observes the scale mark and be the transparence, it is corresponding between scale and the level sensor to observe the scale mark.

As an optimized implementation mode of the utility model, the bottom in the high-level water tank is provided with a slope and the middle part of the slope is corresponding to the water outlet.

As a preferred embodiment of the utility model, the mounting disc all is equipped with sealing washer and sealing washer with the junction of first test tube and second test tube and is the toper structure setting, the sealing washer is equipped with the elasticity piece with the junction of first test tube and second test tube, and the sealing washer passes through flexible connection between elasticity piece and first test tube and the second test tube.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the utility model discloses pour into the detection water of capacity in water storage box inside, through in the high-order water tank of water pump suction, the inside level sensor of a plurality of groups that sets up of high-order water tank, can control the water pump and let in quantitative detection water, it is fixed to guarantee to detect the water yield of water, install the flowmeter between first test tube and second test tube, water flows down along the test tube, the high-order water tank water level changes, the flow stability is unchangeable, can measure the liquid volume that the pipeline flowed out in a certain time, and then obtain the velocity of flow, can obtain standard flow, contrast with the flowmeter, in order to reach the calibration purpose.

(2) The utility model discloses side at first test tube and second test tube is equipped with the mounting disc, the mounting disc inboard is equipped with spring and splint, and the splint inboard sets up the flexure strip, rotating spring inboard fastening bolt, thereby make between it and the splint contact each other and descend, take place deformation after the inboard flexure strip of splint links to each other with the link of flowmeter, it realizes the parcel from the outside to drive splint, the compactness of connection has been increased, simultaneously with the junction erection joint sealing washer of test tube way, the sealing washer is the toper structure and sets up the convenience and is linked together with the flowmeter, can the end of connecting back sets up the elastic block simultaneously, conveniently install.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the high level water tank of the present invention;

FIG. 3 is a schematic side view of the mounting plate of the present invention;

fig. 4 is a schematic view of the structure of the sealing ring of the present invention.

In the drawing, a water storage tank-1, a connecting pipe-2, a water pump-3, a water pipe-4, a first valve-5, a high-level water tank-6, a controller-7, an observation scale mark-8, a first test pipe-9, a second valve-10, a first support-11, a slide rail-12, a second support-13, a second test pipe-14, a mounting disc-15, a connecting flange-16, a flowmeter-17, a liquid level sensor-18, a slope-19, a spring-20, a clamping plate-21, an elastic sheet-22, a fastening bolt-23, a sealing ring-24 and an elastic block-25.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a fluid flow meter prover device comprising: the water storage tank comprises a water storage tank 1, wherein a connecting pipe 2 is arranged on the left side of the water storage tank 1, a water pump 3 is arranged on the left side of the connecting pipe 2, the water pump 3 is communicated with the water storage tank 1 through the connecting pipe 2, a water through pipe 4 is arranged at the output end of the water pump 3, a high-level water tank 6 is connected to the side face of the water through pipe 4, a controller 7 is arranged on the surface of the high-level water tank 6, a plurality of groups of liquid level sensors 18 are arranged in the high-level water tank 6, the liquid level sensors 18 are arranged in a vertical structure and electrically connected with the controller 7 through wires, a first testing pipe 9 is arranged at the middle lower part of the high-level water tank 6, a first support 11 is arranged at the lower part of the first testing pipe 9, the first support 11 is fixedly connected with the water storage tank 1 through bolts, a sliding rail 12 is arranged at the upper part of the right of the water storage tank, when the device is used, test water is injected into the water storage tank 1 and is pumped into the high-level water tank 6 through the water pump 3, a plurality of groups of liquid level sensors 18 are arranged inside the high-level water tank 6, the input water amount can be quantitatively controlled, the first test pipe 9 is connected with the second test pipe 14, the test water flows into the water storage tank 1 again through the test pipes, the test water is continuously discharged, the water level in the high-level water tank 6 is changed, meanwhile, the volume of liquid flowing out of the test pipes in a certain time can be measured due to the fixed water amount, the flow rate is calculated, the standard flow is obtained, the comparison is convenient, the side surfaces of the first test pipe 9 and the second test pipe 14 are both provided with the mounting disc 15 and are arranged in a circular structure, the springs 20 are arranged on two sides in the mounting disc 15, the clamping plates 21 are arranged on the side surfaces of the springs 20, the clamping plates 21 are arranged in a semi-arc structure, the elastic plates 22 are arranged on the inner sides of the clamping plates, spring 20's inboard is equipped with the bottom and the splint 21 of fastening bolt 23 and contacts each other, install between the mounting disc 15 that flange 16 and flange 16 upper portion are equipped with flowmeter 17, link to each other flange 16 and mounting disc 15 at flowmeter 17 both ends, make contact each other between splint 21 and the flange 16 through rotating fastening bolt 23, the flexure strip 22 atress that its inboard set up simultaneously takes place deformation, it is outside at flange 16 to drive splint 21 parcel, guarantee the compactness of connecting, and easy to assemble dismantlement, the step of repeated measurement standard flow, obtain flow numerical value through flowmeter 17, compare with standard numerical value, in order to reach the calibration mesh.

Further improved, as shown in fig. 1: the surface of water service pipe 4 is equipped with first valve 5 and the surface of first test tube 9 is equipped with second valve 10, first valve 5 and second valve 10 are the solenoid valve and pass through electric connection between wire and the controller 7, and the input and the output of convenient control rivers of setting up of first valve 5 and second valve 10.

Further improved, as shown in fig. 1: the surface of high flush tank 6 is equipped with observes scale mark 8 and be transparent, observe between scale mark 8's the scale and the level sensor 18 correspondingly, observe setting up of scale mark 8 and make things convenient for the water level information in the understanding high flush tank of measurement personnel branch pipe.

Further improved, as shown in fig. 2: the bottom in the high-level water tank 6 is provided with a slope 19, the middle of the slope 19 corresponds to the water outlet, and the slope 19 is convenient for test water to flow out.

Further improved, as shown in fig. 4: mounting disc 15 all is equipped with sealing washer 24 and sealing washer 24 with the junction of first test tube 9 and second test tube 14 and is the setting of toper structure, sealing washer 24 is equipped with elastic block 25 with the junction of first test tube 9 and second test tube 14, and sealing washer 24 passes through elastic block 25 and first test tube 9 and second test tube 14 between the flexible connection, and sealing washer 24 is the flowmeter of toper structure setting convenience and different models and is connected, and elastic block 25's setting makes things convenient for tensile sealing washer 24 to be connected simultaneously.

When the utility model is used, test water is injected into the water storage tank 1 and is pumped into the high-level water tank 6 through the water pump 3, a plurality of groups of liquid level sensors 18 are arranged inside the high-level water tank 6, the input water amount can be quantitatively controlled, the first test tube 9 is connected with the second test tube 14, the test water flows into the water storage tank 1 again through the test tubes, the test water is continuously discharged, the water level in the high-level water tank 6 is changed, simultaneously, the volume of the liquid flowing out in the test tubes within a certain time can be measured because the water amount is fixed, thereby calculating the flow rate, obtaining the standard flow, facilitating the comparison, connecting flanges 16 at two ends of the flowmeter 17 are connected with the mounting disc 15, the clamp plate 21 is contacted with the connecting flanges 16 by rotating the fastening bolt 23, meanwhile, the elastic sheet 22 arranged at the inner side of the flowmeter is deformed under stress, and drives the clamp plate 21 to wrap the outer part of, the tightness of connection is guaranteed, the installation and the disassembly are convenient, the step of measuring the standard flow is repeated, the flow value is obtained through the flowmeter 17 and is compared with the standard value, and the aim of calibration is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid flowmeter calibrating device which characterized in that: the method comprises the following steps: the water storage tank (1), a connecting pipe (2) is arranged on the left side of the water storage tank (1), a water pump (3) is arranged on the left side of the connecting pipe (2), the water pump (3) is communicated with the water storage tank (1) through the connecting pipe (2), a water through pipe (4) is arranged at the output end of the water pump (3), a high-level water tank (6) is connected to the side face of the water through pipe (4), a controller (7) is arranged on the surface of the high-level water tank (6), a plurality of groups of liquid level sensors (18) are arranged in the high-level water tank, the liquid level sensors (18) are arranged in a vertical structure and are electrically connected with the controller (7) through wires, a first testing pipe (9) is arranged on the middle lower portion of the high-level water tank (6), a first support (11) is arranged on the lower portion of the first testing pipe (9), the first support (11) is fixedly connected with the water storage tank (1) through bolts, a sliding rail (12) is arranged on the, the second support (13) is provided with a second testing pipe (14), the outlet of the second testing pipe (14) is communicated with the water storage tank (1), the side surfaces of the first test tube (9) and the second test tube (14) are both provided with mounting discs (15) which are arranged in a circular structure, springs (20) are arranged on two sides in the mounting disc (15), clamping plates (21) are arranged on the side surfaces of the springs (20), the clamping plate (21) is arranged in a semi-arc structure, the inner side of the clamping plate is provided with an elastic sheet (22), the elastic sheet (22) is of an arc structure which is arranged reversely and is fixedly connected with the clamping plate (21) through a bolt, the inner side of the spring (20) is provided with a fastening bolt (23), the bottom of the fastening bolt (23) is contacted with the clamping plate (21), and a connecting flange (16) is arranged between the mounting discs (15), and a flowmeter (17) is arranged at the upper part of the connecting flange (16).

2. The fluid flow meter calibration device of claim 1, wherein: the surface of water service pipe (4) is equipped with first valve (5) and the surface of first test tube (9) is equipped with second valve (10), first valve (5) and second valve (10) are the solenoid valve and pass through electric connection between wire and controller (7).

3. The fluid flow meter calibration device of claim 1, wherein: the surface of high flush tank (6) is equipped with and observes scale mark (8) and observe scale mark (8) and be transparent, it is corresponding between scale and level sensor (18) of observing scale mark (8).

4. A fluid flow meter calibration device according to claim 3, wherein: the bottom in the high-level water tank (6) is provided with a slope (19), and the middle part of the slope (19) corresponds to the water outlet.

5. The fluid flow meter calibration device of claim 1, wherein: mounting disc (15) all are equipped with sealing washer (24) and sealing washer (24) with the junction of first test tube (9) and second test tube (14) and are the toper structure setting, sealing washer (24) are equipped with elasticity piece (25) with the junction of first test tube (9) and second test tube (14), and sealing washer (24) are through flexible connection between elasticity piece (25) and first test tube (9) and second test tube (14).