CN211121530U - Electromagnetic flow calibration device - Google Patents
Electromagnetic flow calibration device Download PDFInfo
- Publication number
- CN211121530U CN211121530U CN201922430567.3U CN201922430567U CN211121530U CN 211121530 U CN211121530 U CN 211121530U CN 201922430567 U CN201922430567 U CN 201922430567U CN 211121530 U CN211121530 U CN 211121530U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- tank
- water
- standard
- electromagnetic flowmeter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses an electromagnetic flowmeter calibration device, the device include water tank, water pump, reposition of redundant personnel surge tank, converge the surge tank, wherein the delivery outlet of water tank passes through the input port connection of water pump and reposition of redundant personnel surge tank, at reposition of redundant personnel surge tank and converge and be equipped with a main standard pipeline and many auxiliary standard pipelines between the surge tank, wherein, main standard pipeline and auxiliary standard pipeline constitute by standard table head tube, flowmeter etalon, standard table back union coupling, are equipped with by examining the table head tube, examined the flowmeter, the detection pipeline that is examined table back union coupling and constitutes between the delivery outlet of surge tank and the return water mouth of water tank that converges, reposition of redundant personnel surge tank, converge the surge tank and be airtight jar. The utility model discloses a main standard pipeline and many auxiliary standard pipelines can make up the use at will according to the demand for detectable flow range is big, detects with the flowmeter that is applicable to different flow, and then carries out the flow to the flowmeter of different specifications and mark.
Description
Technical Field
The utility model relates to a flowmeter calibration technical field, concretely relates to adopt standard table method to carry out the device of maring to electromagnetic flowmeter.
Background
The electromagnetic flowmeter is generally composed of a meter head and a detection pipeline with an electromagnetic coil, when the electromagnetic flowmeter is used for pipelines with different diameters, the diameter of the pipeline to be detected is matched with the pipeline to be detected, and the detection pipeline with various specifications is needed, so that the electromagnetic flowmeter needs to be calibrated before leaving a factory, and the indicating number of the meter head can truly reflect the flow of liquid in the detection pipeline. The flowmeter calibration device in the prior art is only provided with a steady flow tank and a standard pipeline, so the calibration requirements of electromagnetic flowmeters with different specifications are difficult to meet, when the diameter of the standard pipeline is greatly different from the diameter of a detection pipeline of the electromagnetic flowmeter to be calibrated, the calibration error is also large, the calibration device of the single standard pipeline has poor universality, and the water flow fluctuation is large in the working process, so the calibration accuracy is influenced to a certain extent.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an electromagnetic flowmeter calibration device, this calibration device can satisfy the electromagnetic flowmeter of multiple diameter and mark, and the calibration scope is wide, and it is undulant little to mark the in-process rivers, and the precision of demarcation is high.
In order to realize the technical purpose, the utility model adopts the following technical scheme:
an electromagnetic flowmeter calibration device comprises a water tank, water pumps, a flow-dividing buffer tank and a confluence pressure stabilizing tank, wherein an output port of the water tank is connected with an input port of the flow-dividing buffer tank through two water pumps arranged in parallel, a main standard pipeline and a plurality of auxiliary standard pipelines are arranged between the flow-dividing buffer tank and the confluence pressure stabilizing tank, the diameter of the main standard pipeline is larger than that of the auxiliary standard pipelines, the main standard pipeline and the auxiliary standard pipelines are respectively formed by connecting a standard meter front pipe, a flowmeter standard and a standard meter rear pipe, electric butterfly valves are respectively arranged on the main standard pipeline and each auxiliary standard pipeline, a detection pipeline formed by connecting a detected meter front pipe, a detected flowmeter and a detected meter rear pipe is arranged between an output port of the pressure stabilizing tank and a water return port of the water tank, and an electric butterfly valve is arranged on the detection pipeline and in front of the detected meter front pipe, the shunting buffer tank and the confluence pressure stabilizing tank are closed tanks.
Preferably, a residual water recovery pipeline is arranged beside the detection pipeline, the inlet end of the residual water recovery pipeline is communicated with the initial end of the detection pipeline, and the tail end of the residual water recovery pipeline is communicated with the water tank. And an electric drain valve and a drain pump are arranged on the residual water recovery pipeline. When the detected flowmeter is detached, the residual water in the pipeline and the water in the confluence pressure stabilizing tank can be prevented from leaking, and further the waste of water resources is avoided.
Preferably, the tail end of the back pipe of the detected meter is connected with an automatic pressing device for driving the back and forth movement of the back pipe of the detected meter through a blind plate, the automatic pressing device is connected with a hydraulic system, and the tail end of the back pipe of the detected meter is connected with a water return port of the water tank through a water return pipeline consisting of a movable hose, a dirt remover, an electric regulating valve and a water return pipe. When the automatic pressing device drives the back pipe of the detected meter to move backwards, the current detected flowmeter can be dismounted, and the next flowmeter to be detected is installed. The design can realize the quick installation and replacement of the checked meter.
Preferably, an exhaust valve and a pressure/temperature transmitter are respectively arranged on the shunt buffer tank and the confluence pressure stabilizing tank. The design of the exhaust valve and the pressure/temperature transmitter can lead the shunt buffer tank and the confluence pressure stabilizing tank to automatically exhaust redundant gas in the tank and keep the pressure in the tank stable.
Preferably, a pressure gauge is respectively arranged on the shunt buffer tank and the confluence pressure stabilizing tank. Whether the whole calibration device is stable or not can be judged by observing whether the readings on the pressure gauge are stable or not. When the indication of the pressure gauge is stable, the measurement is carried out, and the calibration precision and accuracy of the flow meter can be effectively ensured.
Preferably, the water tank is provided with a vent hole, an overflow pipe, a water replenishing port, an inlet and outlet manhole and a water level sensor. The design of the vent hole, the overflow pipe, the water replenishing port and the water level sensor is used for ensuring the stability of the pressure in the water tank; the design of the access manhole is used for facilitating the maintenance of workers.
Preferably, the device also comprises a control cabinet, wherein the control cabinet is respectively electrically connected with the water pump, the electric devices on the flow dividing buffer tank, the electric devices on the confluence voltage stabilizing tank and the standard pipeline, and the electric devices on the detection pipeline and the residual water recovery pipeline. The control cabinet controls the flow by controlling the rotating speed of the water pump, switches the working state of the device by controlling the opening of each valve and realizes the detection of different flows, is also used for automatically detecting the flow, the pressure and the temperature, automatically operates each calibration flow point after the device is stabilized, and can automatically read the data of the standard meter and automatically write in the data of the flow characteristic coefficient of the meter to be detected and the like.
Preferably, the control cabinet is electrically connected with the central control computer through the server, and the control cabinet is externally connected with a display. The server is used for storing calibrated historical data, and the central control computer control equipment automatically forms a calibration certificate and prints the calibration certificate.
The technical effects of the utility model:
(1) the utility model discloses in, adopt a main standard pipeline and many auxiliary standard pipelines, can make up the use at will according to the demand for detectable flow range is big, marks with the electromagnetic flowmeter who is applicable to different detection pipeline diameters.
(2) The utility model discloses the design of reposition of redundant personnel buffer tank, confluence surge tank is used, can effectively avoid the fluctuation of system when operation, and then makes the system more stable, and the measuring result is more accurate;
(3) the utility model discloses convenient operation adopts switch board control operation, and degree of automation is high, has realized low-cost, the high accuracy of flowmeter and has markd, and detection efficiency and detection reliability are high, take the circulating water mode simultaneously, have avoided the water waste.
Drawings
The following describes the calibration device of the electromagnetic flowmeter of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the electromagnetic flowmeter calibration device of the utility model.
In the figure: 1. the device comprises a water tank, 2, a water pump, 3, a confluence pressure stabilizing tank, 4, a diversion buffer tank, 5, a detected flowmeter, 6, a detected meter rear pipe, 7, a detected meter front pipe, 8, a standard meter front pipe, 9, a standard meter rear pipe, 10, a flowmeter standard, 11, an automatic pressing device, 12, a movable hose, 13, a dirt remover, 14, an electric regulating valve, 15, a water return pipe, 16, a blind plate, 17, a hydraulic system, 18, an electric butterfly valve, 19, a blow-down valve, 20, a residual water recovery pipeline, 21, an exhaust valve, 22, a pressure gauge, 23, a pressure/temperature transmitter, 24, a control cabinet, 25, an air vent, 26, an overflow pipe, 27, a water replenishing port, 28, an inlet and outlet manhole, 29, a water level sensor, 30, an electric drain valve, 31, a drain pump, 32, a server, 33, a central control computer, 34 and a display.
Detailed Description
As shown in figure 1, the calibration device of the electromagnetic flowmeter of the utility model comprises a water tank 1, a water pump 2, a shunt buffer tank 4 and a confluence pressure stabilizing tank 3, wherein the output port of the water tank 1 is connected with the input port of the diversion buffer tank 4 through two water pumps 2 which are arranged in parallel, a main standard pipeline and five auxiliary standard pipelines are arranged between the flow dividing buffer tank 4 and the confluence pressure stabilizing tank 3, wherein the main standard pipeline and the auxiliary standard pipeline are respectively formed by connecting a standard meter front pipe 8, a flowmeter standard 10 and a standard meter rear pipe 9, electric butterfly valves 18 are respectively installed on the main standard pipeline and each auxiliary standard pipeline, a detection pipeline formed by connecting a detected meter front pipe 7, a detected flow meter 5 and a detected meter rear pipe 6 is arranged between the output port of the confluence surge tank 3 and the water return port of the water tank 1, and the shunting buffer tank 4 and the confluence surge tank 3 are both closed tanks. An electric butterfly valve 18 is mounted on the detection line in front of the front pipe 4 of the meter to be tested.
The diameter of the main standard line pipe is larger than that of the auxiliary standard line pipe.
A residual water recycling pipeline 20 is arranged beside the detection pipeline, the inlet end of the residual water recycling pipeline 20 is communicated with the initial end of the detection pipeline, and the tail end of the residual water recycling pipeline 20 is communicated with the water tank 1. The residual water recycling pipeline 20 is provided with an electric drain valve 30 and a drain pump 31.
The tail end of the back pipe 6 of the detected meter is connected with an automatic pressing device 11 for driving the back and forth movement of the back pipe through a blind plate 16, the automatic pressing device 11 is connected with a hydraulic system 17, and the tail end of the back pipe 6 of the detected meter is connected with a water return port of the water tank 1 through a water return pipeline composed of a movable hose 12, a dirt remover 13, an electric regulating valve 14 and a water return pipe 15.
An exhaust valve 21 and a pressure/temperature transmitter 23 are respectively installed on the shunt buffer tank 4 and the confluence surge tank 3.
The water tank 1 is provided with a vent 25, an overflow pipe 26, a water replenishing port 27, an access hole 28 and a water level sensor 29.
The device also comprises a control cabinet 24, wherein the control cabinet 24 is respectively electrically connected with the electric devices on the water pump 2 and the flow dividing buffer tank 4, the electric devices on the confluence voltage stabilizing tank 3 and the standard pipeline, and the electric devices on the detection pipeline and the residual water recovery pipeline 20.
The control cabinet 24 is electrically connected with a central control computer 33 through a server 32, and the control cabinet 24 is externally connected with a display 34.
The working principle is as follows: firstly, selecting a corresponding standard pipeline according to the diameter of a detection pipeline of a detected flowmeter 5 or using the selected standard pipeline in a combined manner, opening a corresponding electric butterfly valve 18, pumping water in a water tank 1 into a shunt buffer tank 4 through two water pumps 2 arranged in parallel, converging the water in the shunt buffer tank 4 to a converging pressure stabilizing tank 3 through the corresponding standard pipeline, finally refluxing the water in the converging pressure stabilizing tank 3 to the water tank 1 through the detection pipeline, reading the indicator number of each flowmeter standard and the indicator number of the detected flowmeter after the pressure of the water tank 1, the shunt buffer tank 4, the converging pressure stabilizing tank 3 and all connecting pipelines is stabilized, calculating a correction coefficient of the detected flowmeter, writing the correction coefficient into an indicator chip, enabling the indicator number of the detected flowmeter to be equal to the sum of the indicator numbers of the flowmeters, and finishing the calibration of the detected flowmeter.
Claims (8)
1. The utility model provides an electromagnetic flowmeter calibrating device which characterized in that: comprises a water tank (1), a water pump (2), a shunt buffer tank (4) and a confluence pressure stabilizing tank (3), wherein the output port of the water tank (1) is connected with the input port of the shunting buffer tank (4) through the water pump (2), a main standard pipeline and a plurality of auxiliary standard pipelines are arranged between the shunting buffer tank (4) and the confluence pressure stabilizing tank (3), the diameter of the main standard pipeline is larger than that of the auxiliary standard pipeline, the main standard pipeline and the auxiliary standard pipeline are formed by connecting a standard meter front pipe (8), a flowmeter standard device (10) and a standard meter rear pipe (9), a detection pipeline formed by connecting a front pipe (7) of a detected meter, a detected flow meter (5) and a rear pipe (6) of the detected meter is arranged between the output port of the confluence pressure stabilizing tank (3) and the water return port of the water tank (1), the shunt buffer tank (4) and the confluence pressure stabilizing tank (3) are closed tanks.
2. The electromagnetic flowmeter calibration device as set forth in claim 1, wherein: a residual water recovery pipeline (20) is arranged beside the detection pipeline, the inlet end of the residual water recovery pipeline (20) is communicated with the initial end of the detection pipeline, the tail end of the residual water recovery pipeline (20) is communicated with the water tank (1), and an electric drain valve (30) and a drain pump (31) are arranged on the residual water recovery pipeline (20).
3. The electromagnetic flowmeter calibration device as set forth in claim 1, wherein: the tail end of the back pipe (6) of the checked meter is connected with an automatic pressing device (11) for driving the back and forth movement of the back pipe through a blind plate (16), the automatic pressing device (11) is connected with a hydraulic system (17), and the tail end of the back pipe (6) of the checked meter is connected with a water return port of the water tank (1) through a water return pipeline composed of a movable hose (12), a dirt remover (13), an electric regulating valve (14) and a water return pipe (15).
4. The electromagnetic flowmeter calibration device as set forth in claim 1, wherein: and an exhaust valve (21) and a pressure/temperature transmitter (23) are respectively arranged on the shunt buffer tank (4) and the confluence pressure stabilizing tank (3).
5. The electromagnetic flowmeter calibration device as set forth in claim 1, wherein: and pressure gauges (22) are respectively arranged on the shunt buffer tank (4) and the confluence pressure stabilizing tank (3).
6. The electromagnetic flowmeter calibration device as set forth in claim 1, wherein: the water tank (1) is provided with a vent hole (25), an overflow pipe (26), a water replenishing port (27), an inlet and outlet manhole (28) and a water level sensor (29).
7. An electromagnetic flowmeter calibration device as set forth in any of claims 1-6, characterized in that: the electromagnetic flowmeter calibration device further comprises a control cabinet (24), wherein the control cabinet (24) is respectively connected with electric devices on the water pump (2) and the flow dividing buffer tank (4), electric devices on the converging pressure stabilizing tank (3) and the standard pipeline, and electric devices on the detection pipeline and electric devices on the residual water recovery pipeline (20).
8. The electromagnetic flowmeter calibrating device as set forth in claim 7, wherein: the control cabinet (24) is electrically connected with a central control computer (33) through a server (32), and a display (34) is externally connected with the control cabinet (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922430567.3U CN211121530U (en) | 2019-12-30 | 2019-12-30 | Electromagnetic flow calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922430567.3U CN211121530U (en) | 2019-12-30 | 2019-12-30 | Electromagnetic flow calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211121530U true CN211121530U (en) | 2020-07-28 |
Family
ID=71695963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922430567.3U Active CN211121530U (en) | 2019-12-30 | 2019-12-30 | Electromagnetic flow calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211121530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945359A (en) * | 2021-03-29 | 2021-06-11 | 开封市全盛流量计衬里有限公司 | Calibration device for flow testing tool of electromagnetic flowmeter |
-
2019
- 2019-12-30 CN CN201922430567.3U patent/CN211121530U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945359A (en) * | 2021-03-29 | 2021-06-11 | 开封市全盛流量计衬里有限公司 | Calibration device for flow testing tool of electromagnetic flowmeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203745051U (en) | Two-position one-way reversing valve type pVTt-method gas flow device | |
| CN102889906B (en) | Single-pipe gas relay detecting bench, centering clamping mechanism and detection method thereof | |
| CN201122109Y (en) | Water meter self-checking device | |
| CN204330091U (en) | Bell jar type gas flowmeter calibrating installation | |
| CN104359521A (en) | Large-capacity storage tank volume detection system and calibration method | |
| CN201229202Y (en) | Engineering demarcating device of liquid flowmeter measured by normal volume method | |
| CN211121530U (en) | Electromagnetic flow calibration device | |
| CN207923246U (en) | Multi-epitope is the same as inspection automatic water device for mark integrated system | |
| CN2872061Y (en) | Liquid-phase leakage detector | |
| CN103900665A (en) | Container combination and reversing valve type pVTt-method gas flow device | |
| CN103175591A (en) | Hand-automatic liquid level meter detection device | |
| CN211573919U (en) | Pressure detection device for hydraulic system of excavator | |
| CN103837215A (en) | Reversing valve type pVTt-method gas flow device | |
| CN1529139A (en) | Automatic calibrating system for heat meter | |
| CN111289064A (en) | Online calibrating device and method for metering performance of hydrogenation machine | |
| CN204085644U (en) | A kind of flow calibrating device | |
| CN215338512U (en) | Calibrating device for orifice flowmeter | |
| CN113720424B (en) | Series-parallel coupling type multi-station water meter calibrating device and method | |
| CN102798444B (en) | High-pressure water injection meter detecting device | |
| CN1179536A (en) | Method for setting-up pressure flowmeter and apparatus thereof | |
| CN113375742A (en) | Device and method for measuring steam flow of heat supply pipeline | |
| CN207423293U (en) | Oil consumption computing device and engineering machinery | |
| CN203745052U (en) | Container parallel connection and reversing valve type pVTt method gas flow device | |
| CN2789732Y (en) | Portable intelligent digital display micro-flowmeter | |
| CN217384412U (en) | Portable static mass method micro-caliber liquid flowmeter online calibration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |