CN216524279U - Multichannel float flowmeter calibrating device - Google Patents

Abstract

The utility model relates to the field of calibrating instruments and equipment, in particular to a calibrating device of a multi-channel float flowmeter, which comprises a base, wherein a first pipeline is arranged on the base and is vertical to the base; the side surface of the first pipeline is communicated with an air source pipeline, the top of the first pipeline is provided with a support plate, and the upper surface of the support plate is horizontally provided with a laser level meter; the second pipelines are symmetrically arranged on two sides of the support plate, the support plate is hollow to form a hollow cavity, and the hollow cavity is communicated with the first pipeline and the second pipeline; the second pipeline is provided with a plurality of interfaces which are communicated with the control valve, and the control valve is sequentially communicated with the float flowmeter to be calibrated and the standard flowmeter. The utility model can calibrate a plurality of float flowmeters at the same time, or calibrate a plurality of float flowmeters with different models at the same time, thereby greatly improving the working efficiency; meanwhile, the control valve adopts a wireless control valve, so that the problem of low efficiency caused by manual control is avoided, and the calibration efficiency is further improved.

Description

Multichannel float flowmeter calibrating device

Technical Field

The utility model relates to the field of calibrating instruments and equipment, in particular to a calibrating device of a multi-channel float flowmeter.

Background

The float flowmeter is a variable-area flowmeter in which the weight of a float in a vertical pipe having a conical inner bore which is enlarged from bottom to top is received by the force generated by the fluid from bottom to top, and the flow rate indication is represented by the position of the float in the pipe. The working principle of the float flowmeter is as follows: when the measured fluid passes through the annular gap formed by the taper pipe and the floater from bottom to top, differential pressure is generated at the upper end and the lower end of the floater to form the rising force of the floater, when the rising force borne by the floater is larger than the weight of the floater immersed in the fluid, the floater rises, the area of the annular gap is increased, the flow rate of the fluid at the annular gap is immediately reduced, the differential pressure at the upper end and the lower end of the floater is reduced, the rising force acting on the floater is reduced, and the floater is stabilized at a certain height until the rising force is equal to the weight immersed in the fluid. The height of the float in the taper pipe corresponds to the flow passing through.

In the actual production process, the float flowmeter is generally arranged on a gas pipeline and used for observing the flow of gas in the pipeline in real time, so that the effect of the float flowmeter on the actual production is very important. Therefore, it is necessary to calibrate float flow meters to ensure their accuracy. In the calibration process of the float flowmeter, an instrument to be calibrated is generally connected to an air path pipe through a joint, a manual valve is arranged at the joint of the joint, and the air path pipe is connected with a pressure-stabilizing air source sampling pipe. During calibration, a proper adapter is selected according to the model of an instrument to be calibrated, the adapter is connected to a pipeline, the switch valve is closed first, the air tightness of the device is checked after the pressure stabilizing air source is connected and ventilated, and the float flowmeter can be calibrated by opening the switch valve after the air tightness is confirmed. This calibration approach, while able to solve the float flow meter calibration problem, has a number of drawbacks. 1. The calibration channel is single, at most two float flowmeters can be calibrated at the same time, and the efficiency is too low; 2. the float flowmeter needs to be kept in a horizontal state and a vertical state during calibration, and the device cannot determine whether the float flowmeter is in the horizontal state or the vertical state; 3. the device needs to manually adjust the valve switch every time of operation, and the efficiency is low.

The patent CN214277148U found in the prior art discloses a calibrating device for a metal tube float flowmeter, which comprises a base, a water tank, a water pump, a voltage stabilizer, a float flowmeter, a first standard container and a second standard container, wherein the calibrating device for the metal tube float flowmeter adapts to the installation of different types of float flowmeters through the voltage stabilizer, the pressure gauge, a thermometer and a densimeter, solves the problem that no special float flowmeter calibrating device exists so far, improves the calibration accuracy, the communicating tube, the liquid guide tube and the liquid return tube are made of metal tubes, the material of the pipeline is improved, the pipeline is not easy to corrode, the use effect is improved, the device is controlled through the cooperation of a controller and control keys, the remote transmission of data can be realized through a wireless communication device, and the remote control mode of the device is improved, the equipment is more convenient to use. The calibration device has not been able to calibrate multiple float flowmeters simultaneously.

In order to solve the problems, the utility model designs a calibration device of a multi-channel float flowmeter.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem, the utility model provides a calibration device for a multi-channel float flowmeter, aiming at realizing the simultaneous calibration of a plurality of float flowmeters and improving the working efficiency; and realize valve automatic control, automatic calibration.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a calibration device for a multi-channel float flowmeter comprises a base, wherein a first pipeline is arranged on the base and is perpendicular to the base; the side surface of the first pipeline is communicated with an air source pipeline, a support plate is arranged at the top of the first pipeline, and a laser level meter is horizontally arranged on the upper surface of the support plate; second pipelines are symmetrically arranged on two sides of the support plate, the support plate is hollow to form a hollow cavity, and the hollow cavity is communicated with the first pipeline and the second pipeline; the second pipeline is provided with a plurality of interfaces which are communicated with a control valve, and the control valve is sequentially communicated with a float flowmeter to be calibrated and a standard flowmeter.

Further, the control system is further included, the control valve is a wireless control valve, and the control valve is communicated with the control system through wireless communication.

Further, the second pipeline comprises a main pipeline and a plurality of branch pipelines, the main pipeline is communicated with the hollow cavity, and the branch pipelines are provided with the interfaces; the branch pipelines and the main pipeline are arranged in parallel, and all the branch pipelines are located on the same horizontal plane.

Further, a conversion interface is arranged between the interface and the control valve.

Further, the number of the laser levels is at least two.

Further, the base is circular, and the base is made of metal.

The utility model has the following beneficial effects: a first pipeline is arranged on a circular base made of metal, a support plate is arranged above the first pipeline, and a laser level meter is arranged above the support plate; the support board both sides set up a plurality of second pipelines, and second pipeline intercommunication control valve, float flowmeter and standard flowmeter can calibrate a plurality of float flowmeters simultaneously to set up different conversion interfaces between second pipeline and control valve, then can change different control valves, realize calibrating the float flowmeter of different models simultaneously, very big improvement work efficiency. The circular metal base can increase the stability of the device, and the laser level meter can measure the levelness and the verticality of the device, so that the detection accuracy is improved; the control valve adopts a wireless control valve, so that the problem of low efficiency caused by manual control is avoided, and the calibration efficiency is further improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Description of reference numerals:

1. a base; 2. a first conduit; 3. a gas source conduit; 4. a support plate; 5. a laser level; 6. a second conduit; 7. a control valve; 8. a float flow meter; 9. a standard flow meter.

Detailed Description

The technical solutions of the present invention will be described in detail with reference to the accompanying drawings, and it is obvious that the described embodiments are not all embodiments of the present invention, and all other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention.

It is to be understood that the terms "center," "upper," "lower," "horizontal," "left," "right," "front," "rear," "lateral," "longitudinal," and the like are used in the illustrated orientation or positional relationship as shown in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

As shown in fig. 1, the utility model provides a calibration device for a multi-channel float flowmeter, which comprises a base 1, wherein the base 1 is circular and made of metal, and has the function of improving the stability of the device; a first pipeline 2 is arranged on the base 1, the first pipeline 2 is a circular hollow pipeline, and the first pipeline 2 is arranged perpendicular to the base 1; the side surface of the first pipeline 2 is communicated with an air source pipeline 3, and the air source pipeline 3 is communicated with an air source and used for conveying gas for measurement for the device.

The top of the first pipeline 2 is provided with a support plate 4, the upper surface of the support plate 4 is horizontally provided with three laser levels 5, the laser levels 5 are provided with double bubbles for observing the horizontal state and the vertical state, the verticality of the installation surface of the laser levels can be displayed, and the horizontal state and the vertical state of the device can be observed by comparing the measured values of the three laser levels 5. The two sides of the support plate 4 are symmetrically provided with second pipelines 6, the support plate 4 is hollow to form a hollow cavity, the hollow cavity is communicated with the first pipeline 2 and the second pipeline 6, and the hollow cavity can be a hollow channel similar to the interior of a three-way valve.

The second pipeline 6 is horizontally arranged, the second pipeline 6 comprises a main pipeline and three branch pipelines, the main pipeline is communicated with the hollow cavity, and the branch pipelines are provided with the interfaces; the branch pipelines are arranged in parallel with the main pipeline, and all the branch pipelines are positioned on the same horizontal plane; the interface is communicated with a control valve 7, and the control valve 7 is sequentially communicated with a float flowmeter 8 to be calibrated and a standard flowmeter 9.

The working principle of the utility model is as follows: after the device is installed, the horizontal state and the vertical state of the device are adjusted through the laser level meter 5, then gas is introduced into the gas source pipeline 3, the gas sequentially passes through the first pipeline 2, the support plate 4, the second pipeline 6, the control valve 7, the float flowmeter 8 and the standard flowmeter 9 are connected in series, therefore, the gas flow of the float flowmeter 8 and the gas flow of the standard flowmeter 9 are equal, the actual measurement values of the float flowmeter 8 and the standard flowmeter 9 are compared, the measurement error of the float flowmeter 8 can be detected, and the float flowmeter 8 is further corrected through the measurement error of the float flowmeter 8.

Preferably, the present invention further comprises a control system (not shown in the figures), wherein the control valve 7 is a wireless control valve, the control valve 7 is communicated with the control system through wireless communication, and the opening and closing state of the control valve 7 is automatically controlled through the control system, so as to improve calibration efficiency.

Preferably, a conversion interface (not shown in the figure) is arranged between the interface and the control valve 7, and different control valves 7 can be connected by connecting different conversion interfaces, so that different float flowmeters 8 can be connected, and a plurality of float flowmeters 8 with different specifications can be calibrated at the same time.

The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be added or subtracted according to actual needs to meet the needs of different situations.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims (6)

1. A calibration device for a multi-channel float flowmeter comprises a base, wherein a first pipeline is arranged on the base and is perpendicular to the base; first pipeline side intercommunication air supply pipeline, its characterized in that: a support plate is arranged at the top of the first pipeline, and a laser level meter is horizontally arranged on the upper surface of the support plate; second pipelines are symmetrically arranged on two sides of the support plate, the support plate is hollow to form a hollow cavity, and the hollow cavity is communicated with the first pipeline and the second pipeline; the second pipeline is provided with a plurality of interfaces which are communicated with a control valve, and the control valve is sequentially communicated with a float flowmeter to be calibrated and a standard flowmeter.

2. The multi-channel float flow meter calibration device of claim 1, wherein: the control valve is a wireless control valve and is communicated with the control system through wireless communication.

3. The multi-channel float flow meter calibration device of claim 1, wherein: the second pipeline comprises a main pipeline and a plurality of branch pipelines, the main pipeline is communicated with the hollow cavity, and the branch pipelines are provided with the interfaces; the branch pipelines and the main pipeline are arranged in parallel, and all the branch pipelines are located on the same horizontal plane.

4. The multi-channel float flowmeter calibration device of claim 1 or 2, wherein: and a conversion interface is arranged between the interface and the control valve.

5. The multi-channel float flow meter calibration device of claim 1, wherein: the number of the laser levels is at least two.

6. The multi-channel float flow meter calibration device of claim 1, wherein: the base is circular, the base is the metal material.

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