CN217980480U

CN217980480U - Flow meter calibrating device for large-range and multi-standard meter

Info

Publication number: CN217980480U
Application number: CN202222081286.3U
Authority: CN
Inventors: 董隐; 吕志勇; 王亚飞; 李晔秋; 刘慧军; 任瑞新; 张永健; 李洋; 刘洋; 宋勇兵; 王印森
Original assignee: Inner Mongolia Yili Industrial Group Co Ltd
Current assignee: Inner Mongolia Yili Industrial Group Co Ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2022-12-06
Anticipated expiration: 2032-08-08

Abstract

The utility model discloses a flow meter calibrating device of a wide-range and multi-standard meter, which comprises a supporting frame and a lifting bracket, wherein a water tank, a water pump set, a buffer tank and a standard meter component are fixed on the supporting frame, and a clamping component of the flow meter to be measured is fixed on the lifting bracket; the outlet of the water tank is connected with an inlet pipeline of the water pump unit, the outlet of the water pump unit is connected with an inlet pipeline of the buffer tank, the outlet of the buffer tank is communicated with the inlet of the standard meter assembly, the outlet of the standard meter assembly is connected with an inlet pipeline of the clamping assembly, the outlet of the clamping assembly is communicated with the inlet of the bent pipe through a second hose, the bent pipe is fixedly connected with the support frame, and the outlet of the bent pipe is communicated with the inside of the water tank through a third hose. The advantages are that: the device after the verification can be used for verifying the flow meter to be tested in an enterprise, the flow meter to be tested does not need to be checked back and forth, the collision of the flow meter to be tested on a checking road is reduced, the checking time is saved, the calibration efficiency is improved, and the production is ensured.

Description

Flow meter calibrating device for large-range and multi-standard meter

The technical field is as follows:

the utility model relates to a flow meter technical field, concretely relates to flow meter calibrating device of wide range, multistandard table.

Background art:

along with the increasing requirements of people on product quality, process control, production flow and cost control, more and more flow meter products with high precision and high performance enter various fields, the accuracy of the high-precision flow meter products is ensured, and the flow meter calibration device has higher requirements on the metering work of production enterprises, so that the establishment of the high-precision, high-reliability and high-efficiency flow calibration device becomes an important ring in the metering work.

The principle of the method is that the standard flow meter is used as a measurement reference, fluid continuously passes through the standard flow meter and the flow meter to be measured in the same time interval, and the measurement performance of the flow meter to be measured is determined by comparing output flow values of the standard flow meter and the flow meter to be measured, wherein the conventional standard meter calibration method has the following defects in the use process: at present, the flow meter needs to be disassembled and sent to a professional mechanism for calibration, the quantity is large, the flow meter is transported back and forth, the cost is increased, the production is delayed, and the flow meter is not suitable for being used in enterprises.

The utility model has the following contents:

an object of the utility model is to provide a flow meter calibrating device of wide range, multistandard table.

The utility model discloses by following technical scheme implement: the flow meter calibration device of the wide-range and multi-standard meter comprises a support frame and a lifting support, wherein a water tank, a water pump set, a buffer tank and a standard meter assembly are fixed on the support frame, and a clamping assembly of the flow meter to be measured is fixed on the lifting support;

the delivery port of water tank and the entry pipe connection of water pump package, the export of water pump package with the entry pipe connection of buffer tank, the export of buffer tank with the entry intercommunication of standard table subassembly, the export of standard table subassembly with the entry pipe connection of centre gripping subassembly, the export of centre gripping subassembly passes through the entry intercommunication of second hose and return bend, the return bend with support frame fixed connection, the export of return bend pass through the third hose with the inside intercommunication of water tank.

Further, the standard meter subassembly includes first connector, second connector, connecting pipe, standard meter, control valve, the entry of first connector with the export intercommunication of buffer tank, the exit end tilt up of first connector sets up, vertically on the first connector be fixed with many with the connecting pipe of the inside intercommunication of first connector, control valve, standard meter, each have been installed in proper order to connecting pipe top-down the standard meter follows in proper order the incline direction of first connector arranges, the intercommunication has the second connector between the top of connecting pipe, the second connector with first connector longitudinal symmetry sets up, the export of second connector through first hose with the entry pipeline connection of centre gripping subassembly.

Further, the centre gripping subassembly includes first reducing joint, second reducing joint, first reducing joint with lifting support's top sliding connection, the second reducing joint with lifting support's top fixed connection, first reducing joint with there is the flow meter that awaits measuring through the pipe connection between the second reducing joint, first reducing joint's the other end with first hose connection, the second reducing joint's the other end with second hose connection.

Furthermore, the support frame includes first support body and the second support body that the components of a whole that can function independently set up, be fixed with on the first support body the water tank water pump group, be fixed with standard table subassembly and buffer tank on the second support body.

Furthermore, a water return pipe is communicated with a pipeline between the outlet of the water pump set and the inlet of the buffer tank, the water return pipe is communicated with the inside of the water tank, and a regulating valve is arranged on the water return pipe.

The flow meter assembly further comprises a controller, and the input end of the controller is electrically connected with the flow meter to be measured and each standard meter of the standard meter assembly.

Furthermore, the lifting support comprises a sleeve, triangular legs, a screw rod and a nut, the triangular legs are fixed at the bottom of the sleeve, the screw rod is movably inserted into the sleeve, the top end of the screw rod extends to the outer side of the sleeve and is in threaded connection with the nut arranged on the outer side of the sleeve, the nut is in movable contact with the sleeve, a limit block is fixed on the screw rod, a guide groove corresponding to the limit block is formed in the axial direction of the sleeve, and the limit block is arranged in the guide groove in a sliding mode.

Furthermore, the bottom ends of the triangular legs are fixedly connected with the supporting frame.

Furthermore, a plurality of baffle plates which are staggered up and down are fixed inside the water tank.

The utility model has the advantages that: the device is good in field use, high in measurement preparation degree, the flow meter to be measured is subjected to inspection only by the inspection of the device, the device can be used for inspecting the flow meter to be measured in an enterprise after being qualified, the flow meter to be measured does not need to be subjected to inspection back and forth, the collision of the inspection road on the flow meter to be measured is reduced, the inspection time is saved, meanwhile, the standard meter does not need to be frequently replaced, the standard meter only needs to be opened through a control valve according to needs, the disassembly frequency of the standard meter is reduced, the calibration efficiency is provided, the production is ensured, and meanwhile, the inspection range of the flow is expanded through the combined use of the standard meters; the connecting pipe is vertically arranged, so that the medium in the pipe can be filled by the fluid under the action of gravity, the volume of the gas in the pipeline is reduced, and the problem of introduced uncertainty of measurement is solved; through the lifting support, the up-and-down movement of the screw rod is limited under the action of the limiting block and the guide groove, and the up-and-down movement of the screw rod is realized by rotating the nut according to the self condition of an operator, so that the position of the flow meter to be measured is adjusted.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the structure of the utility model;

in the figure: the flow meter comprises a support frame 1, a lifting support 2, a water tank 3, a water pump set 4, a buffer tank 5, a standard meter component 6, a flow meter 7 to be measured, a clamping component 8, a first reducing joint 81, a second reducing joint 82, a baffle plate 9, a second hose 10, a bent pipe 11, a third hose 12, a first connector 13, a second connector 14, a connecting pipe 15, a standard meter 16, a control valve 17, a first hose 18, a first frame body 19, a second frame body 20, a water return pipe 21, a regulating valve 22, a controller 23, a sleeve 24, a triangular leg 25, a screw 26, a nut 27, a limiting block 28 and a guide groove 29.

The specific implementation mode is as follows:

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 efforts belong to the protection scope of the present invention.

As shown in fig. 1, the flow meter calibration device for a wide-range and multi-standard meter comprises a support frame 1 and a lifting support 2, wherein a water tank 3, a water pump set 4, a buffer tank 5 and a standard meter component 6 are fixed on the support frame 1, and a clamping component 8 of a flow meter 7 to be measured is fixed on the lifting support 2;

the outlet of the water tank 3 is connected with the inlet pipeline of the water pump group 4, a plurality of baffle plates 9 which are arranged in an up-and-down staggered manner are fixed inside the water tank 3, the purpose is to reduce the water flow speed as much as possible to prolong the water flow time, the influence of bubbles, vortexes and the like brought by return water of the water tank 3 on the system stability is eliminated, the flow stability of the whole device is improved, the fluctuation of liquid in the tank and the generation of bubbles can be reduced, and the water tank 3 is reinforced, the outlet of the water pump group 4 is connected with the inlet pipeline of the buffer tank 5, the buffer tank 5 has the function of stabilizing the water pressure of fluid, the measurement error of the flow meter caused by unstable water pressure is reduced, the outlet of the buffer tank 5 is communicated with the inlet of the standard meter component 6, the standard meter component 6 has the function of enlarging the measurement range and calibrating the flow meter 7 to be measured, the opening number of the standard meter 16 is selected according to the range of the flow meter to be measured 7, so that the measurement range of the opened standard meter 16 meets the range of the flow meter 7 to be measured, the range of the standard meter component 6 is communicated with the inlet pipeline of the clamping component 8, the outlet of the elbow 11 is communicated with the inlet pipeline of the elbow 11, the outlet of the water tank 11 is communicated with the support frame 11, and the outlet of the water tank 3, and the elbow 11 are communicated with the hose 12.

Calibrating the device: before the device is used for calibrating the flow meter 7 to be calibrated, the device needs to be integrally checked and calibrated before being used for calibrating the flow meter in an enterprise, when the device is calibrated, selected calibration points, namely the range values of the corresponding flow meters are determined according to the maximum range and the combination of the standard meters 16, the corresponding standard flow meters with higher levels are selected to be connected to the clamping component 8 according to each calibration point, meanwhile, pipelines matched with the standard flow meters with higher levels are connected to the clamping component 8, water pumps with power of the corresponding levels of the device are started, fluid is introduced through the water tank 3 to circulate, the calibration points are obtained, and the numerical values displayed on the corresponding combined standard meters 16 are used as the set values of the flow meters 7 to be calibrated at the later stage;

the device after verification can be used for verifying the flow meter 7 to be tested in an enterprise, the flow meter 7 to be tested does not need to be subjected to back and forth inspection, the collision of the inspection road on the flow meter 7 to be tested is reduced, the inspection time is saved, meanwhile, the standard meter 16 does not need to be frequently replaced, only the standard meter 16 needs to be opened through the control valve according to needs, the disassembly frequency of the standard meter is reduced, the calibration efficiency is improved, the production is ensured, and meanwhile, the verification range of the flow is expanded through the combined use of the standard meter 16;

a water return pipe 21 is communicated on a pipeline between the outlet of the water pump set 4 and the inlet of the buffer tank 5, the water return pipe 21 is communicated with the inside of the water tank 3, a regulating valve 22 is arranged on the water return pipe 21, and the flow rate in the device can be finely regulated through the water return pipe 21 and the regulating valve 22, so that the required measured value of the standard meter 16 is consistent with the set value;

the standard meter assembly 6 comprises a first connector 13, a second connector 14, connecting pipes 15, a standard meter 16 and a control valve 17, wherein an inlet of the first connector 13 is communicated with an outlet of the buffer tank 5, an outlet end of the first connector 13 is arranged in an upward inclined manner, the first connector 13 is arranged in an inclined manner to ensure the filling sequence of the aqueous medium, a plurality of connecting pipes 15 communicated with the inside of the first connector 13 are vertically fixed on the first connector 13, the connecting pipes 15 are vertically arranged to ensure that the medium in the pipes can be filled under the action of gravity, the introduced measurement uncertainty is reduced, the connecting pipes 15 are sequentially provided with the control valve 17 and the standard meter 16 from top to bottom, the standard meters 16 with different specifications are selected, meanwhile, the connecting pipes 15 with corresponding diameters are selected according to the specifications of the standard meters 16, so that the maximum flow of the connecting pipes 15 meets the maximum measurement range of the standard meters 16, and when the meter 7 to be measured is calibrated, the combination of one or more standard meters 16 is selectively used, and the measurement range is expanded; the standard meters 16 are sequentially arranged along the inclination direction of the first connector 13, the measuring range of each standard meter 16 is decreased gradually along the inclination direction of the first connector 13, the combination form of the standard meters is selected according to the measuring range of the flow meter to be measured, the maximum measuring range in the standard meters 16 in the combination is controlled by adjusting the control valve 17 of the minimum measuring range standard meter 16 in the combination to firstly measure the flow so as to meet the set value, namely the maximum measuring range value of the standard meter is reached, the rest flow is compensated by the minimum measuring range standard meter 16 in the combination, and then the flow passing through the device is finely adjusted by the adjusting valve 22 of the water return pipe 21 and the control valve 17 of the minimum measuring range standard meter 16, so that the measured value of the small measuring range standard meter 16 is consistent with the set value, namely, the measured value of the flow meter to be measured is compared with the value displayed by the standard flow meter of a higher level when the device is sent and detected in the current state, so as to judge the accuracy of the flow meter to be measured.

The top ends of the connecting pipes 15 are communicated with the second connectors 14, the second connectors 14 and the first connectors 13 are arranged in a vertically symmetrical mode, the second connectors 14 are arranged obliquely, so that the water quantity is smoother, meanwhile, the first connectors 13 and the second connectors 14 are arranged obliquely, the fact that no accumulated water remains in the standard meter assembly can be guaranteed, water can be discharged conveniently, and measuring errors are reduced; the outlet of the second connector 14 is connected with the inlet pipeline of the clamping assembly 8 through the first hose 18, the standard meter 16 on each connecting pipe 15 is adjusted through the control valve 17 and the adjusting valve 22 when the flow meter 7 to be measured corresponding to the calibration point is calibrated through the device in the later stage, so that the value displayed by the standard meter 16 is consistent with the set value, the value displayed by the flow meter 7 to be measured is observed, namely whether the flow meter 7 to be measured is consistent with a standard flow meter of a higher level used for inspection is indirectly proved, and the accuracy of the flow meter 7 to be measured is determined;

the clamping assembly 8 comprises a first reducing joint 81 and a second reducing joint 82, the first reducing joint 81 is in sliding connection with the top of the lifting support 2, a sliding groove is formed in the top of the lifting support 2, the first reducing joint 81 is connected with the sliding groove through a sliding block, the effect is that the first reducing joint 81 is moved according to different sizes of the flow meter 7 to be measured, the flow meter 7 to be measured is clamped, and adaptability is achieved; the second reducing joint 82 is fixedly connected with the top of the lifting support 2, the flow meter 7 to be measured is connected between the first reducing joint 81 and the second reducing joint 82 through a pipeline, the diameter of the pipeline between the first reducing joint 81 and the second reducing joint 82 needs to be matched with the maximum range of the flow meter to be measured, the other end of the first reducing joint 81 is connected with the first hose 18, the other end of the second reducing joint 82 is connected with the second hose 10, the hose is used for facilitating disassembly, meanwhile, the moisture in the hose is conveniently discharged, and the error of residual moisture in the hose on flow measurement is reduced;

support frame 1 is fixed with water tank 3, water pump unit 4 including first support body 19 and the second support body 20 that the components of a whole that can function independently set up on the first support body 19, and the bottom of first support body 19 and second support body 20 is equipped with the pulley, is fixed with stopwatch subassembly 6 and buffer tank 5 on the second support body 20, through the dismantlement of first support body 19 and second support body 20, convenient transport.

The flow meter assembly further comprises a controller 23, the input end of the controller 23 is electrically connected with the flow meter 7 to be measured and each standard meter 16 of the standard meter assembly 6, and flow values detected by the standard meter 16 and the flow meter 7 to be measured are displayed through a display screen on the controller 23, so that recording and comparison are facilitated.

The lifting support 2 comprises a sleeve 24, triangular legs 25, a screw rod 26 and a nut 27, the triangular legs 25 are fixed at the bottom of the sleeve 24, the screw rod 26 is movably inserted into the sleeve 24, the top end of the screw rod 26 extends to the outer side of the sleeve 24 and is in threaded connection with the nut 27 arranged on the outer side of the sleeve 24, the nut 27 is in movable contact with the sleeve 24, a limit block 28 is fixed on the screw rod 26, a guide groove 29 corresponding to the limit block 28 is formed in the axial direction of the sleeve 24, the limit block 28 is arranged in the guide groove 29 in a sliding mode, the up-and-down movement of the screw rod 26 is limited under the action of the limit block 28 and the guide groove 29, the up-and-down movement of the screw rod 26 is achieved by rotating the nut 27 according to the self condition of an operator, and the position of the flowmeter 7 to be measured is adjusted.

The bottom of triangle leg 25 and support frame 1 fixed connection, specifically second support body 20, the convenient transport.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The flow meter calibration device of the wide-range and multi-standard meter is characterized by comprising a support frame and a lifting support, wherein a water tank, a water pump set, a buffer tank and a standard meter assembly are fixed on the support frame, and a clamping assembly of the flow meter to be measured is fixed on the lifting support;

the water tank is internally fixed with a plurality of baffle plates which are staggered up and down, the water outlet of the water tank is connected with the inlet pipeline of the water pump set, the outlet of the water pump set is connected with the inlet pipeline of the buffer tank, the outlet of the buffer tank is communicated with the inlet of the standard meter assembly, the outlet of the standard meter assembly is connected with the inlet pipeline of the clamping assembly, the outlet of the clamping assembly is communicated with the inlet of the bent pipe through a second hose, the bent pipe is fixedly connected with the support frame, and the outlet of the bent pipe is communicated with the inside of the water tank through a third hose.

2. The calibrating device for the flow meter of the wide-range and multi-standard meter according to claim 1, wherein the lifting support comprises a sleeve, a triangular leg, a screw rod and a nut, the triangular leg is fixed at the bottom of the sleeve, the screw rod is movably inserted into the sleeve, the top end of the screw rod extends to the outer side of the sleeve and is in threaded connection with the nut arranged on the outer side of the sleeve, the nut is in movable contact with the sleeve, a limiting block is fixed on the screw rod, a guide groove corresponding to the limiting block is formed in the axial direction of the sleeve, and the limiting block is slidably arranged in the guide groove.

3. A flow meter calibration device for a wide range, multi-standard meter according to claim 2 wherein the bottom ends of said triangular legs are fixedly attached to said support frame.

4. A flow meter calibrating device for a wide-range, multi-standard meter according to claim 1, wherein said support frame comprises a first frame body and a second frame body which are separately arranged, said first frame body is fixed with said water tank and said water pump set, and said second frame body is fixed with a standard meter assembly and a buffer tank.

5. The device of claim 4, wherein a return pipe is connected to a pipe between the outlet of the water pump set and the inlet of the buffer tank, the return pipe is connected to the inside of the water tank, and the return pipe is provided with a regulating valve.

6. The flow meter calibrating device for the wide-range and multi-standard meter according to claim 1, wherein the standard meter assembly comprises a first connector, a second connector, a connecting pipe, a standard meter and a control valve, the inlet of the first connector is communicated with the outlet of the buffer tank, the outlet of the first connector is arranged in an upward inclined manner, a plurality of connecting pipes communicated with the interior of the first connector are vertically fixed on the first connector, the connecting pipe is sequentially provided with the control valve and the standard meter from top to bottom, the standard meters are sequentially arranged in an inclined direction of the first connector, the second connector is communicated between the top ends of the connecting pipes, the second connector and the first connector are arranged in an up-down symmetrical manner, and the outlet of the second connector is connected with the inlet pipeline of the clamping assembly through a first hose.

7. A flow meter calibrating device for a wide-range and multi-standard meter according to claim 2, wherein the clamping assembly comprises a first reducing joint and a second reducing joint, the first reducing joint is slidably connected with the top of the lifting support, the second reducing joint is fixedly connected with the top of the lifting support, a flow meter to be measured is connected between the first reducing joint and the second reducing joint through a pipeline, the other end of the first reducing joint is connected with a first hose, and the other end of the second reducing joint is connected with a second hose.

8. The wide range, multi-standard flow meter calibration device of claim 3 further comprising a controller, wherein an input of said controller is electrically connected to the flow meter to be measured and each of the standard meters of said standard meter assembly.