Flowmeter comparison device

Abstract

The utility model provides a flowmeter comparison device which comprises a control system, a water pump, a foam remover, a marked flowmeter assembly, a manual stop valve assembly I, a compared meter assembly, a manual stop valve assembly II, a pneumatic quick-opening valve I, a pneumatic quick-opening valve II, a standard pool, a liquid level meter and a blow-down valve. According to the utility model, the control system carries out metering comparison on the marked flowmeter, the calibrated meter and the standard pool to obtain an error, whether the calibrated meter is in an allowable error range is judged according to the error, and the comparison device is simple in structure, can master the accuracy of the flowmeter under the use condition, carries out timely tracking, and improves the working efficiency. Therefore, the normal utilization rate and accuracy of the flow instrument are improved, real and effective data indexes are provided for production, and the purposes of energy conservation and efficiency improvement are achieved.

Description

Technical Field

[0001] The utility model specifically relates to a flowmeter comparison device. Background Art

[0002] Currently, an online portable ultrasonic flowmeter is used for comparison. In this technical solution, the emitted ultrasonic wave is incident on the flowing fluid and is reflected by the particles moving with the fluid to the receiver. A frequency difference is generated between the received reflected sound wave and the emitted sound wave. This frequency difference is the Doppler frequency shift, which is proportional to the fluid flow rate. Therefore, the flow rate can be obtained by measuring the frequency difference. However, it is impossible to measure and compare phosphoric acid and sewage. Moreover, electromagnetic flowmeters, mass flowmeters, vortex flowmeters, and mechanical water meters cannot be compared online, and the accuracy of the meters cannot be grasped. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a flowmeter comparison device.

[0004] The utility model is achieved through the following technical solutions.

[0005] A flowmeter comparison device includes a control system, a water pump, a calibrated flowmeter assembly, a meter to be compared assembly, a pneumatic quick-opening valve I, a pneumatic quick-opening valve II, and a liquid level gauge, which are electrically connected to the control system; a foam remover is arranged between the water pump and the calibrated flowmeter assembly; a manual stop valve assembly I is arranged between the calibrated flowmeter assembly and the meter to be compared assembly; the right end of the meter to be compared assembly is connected to one end of a manual stop valve assembly II through a water pipe, the other end of the manual stop valve assembly II is connected to one ends of the pneumatic quick-opening valve I and the pneumatic quick-opening valve II through a water pipe, the other end of the pneumatic quick-opening valve I is connected to a standard water tank through a water pipe, the other end of the pneumatic quick-opening valve II is connected to one end of a sewage discharge valve through a water pipe, and the other end of the sewage discharge valve is connected to the standard water tank through a water pipe; the liquid level gauge is also connected to the standard water tank through a water pipe.

[0006] The calibrated flowmeter assembly includes a calibrated flowmeter A and a calibrated flowmeter B. The water inlet ends of the calibrated flowmeter A and the calibrated flowmeter B are both connected to the water outlet end of the foam remover through water pipes.

[0007] The manual stop valve assembly I includes a manual stop valve assembly IA and a manual stop valve assembly IB; the water inlet end of the manual stop valve assembly IA is connected to the water outlet end of the calibrated flowmeter A through a water pipe; the water inlet end of the manual stop valve assembly IB is connected to the water outlet end of the calibrated flowmeter B through a water pipe.

[0008] The component to be compared includes component A to be compared and component B to be compared; the water inlet end of component A to be compared is connected to the water outlet end of manual stop valve component ⅠA through a water pipe; the water inlet end of component B to be compared is connected to the water outlet end of manual stop valve component manual stop valve component ⅠB through a water pipe.

[0009] The manual stop valve component Ⅱ includes manual stop valve component ⅡA and manual stop valve component ⅡB; the water inlet end of manual stop valve component ⅡA is connected to the water outlet end of component A to be compared through a water pipe; the water inlet end of manual stop valve component ⅡB is connected to the water outlet end of component B to be compared through a water pipe.

[0010] The D001 pin of the PLC controller is connected to the start button of the water pump, the AI01 pin is connected to the rotary joint Ⅰ of the marked flowmeter A and the rotary joint Ⅱ of the marked flowmeter B, the AI02 pin is connected to the rotary joint Ⅲ of component A to be compared and the rotary joint Ⅳ of component B to be compared, the AI03 pin is connected to the input end of the liquid level gauge, the D002 pin and the D003 pin are respectively connected to the pneumatic rotary joint Ⅰ of the pneumatic quick-opening valve Ⅰ and the pneumatic rotary joint Ⅱ of the pneumatic quick-opening valve Ⅱ, and the RS485 pin is connected to the RS485 pin of the intelligent flow integrator.

[0011] The model of the PLC controller is: SIMATIC S7-1200.

[0012] The manual stop valve component ⅠA is composed of at least 1 manual stop valve; the manual stop valve component ⅠB is composed of at least 1 manual stop valve.

[0013] The component A to be compared is composed of at least 1 component to be compared; the component B to be compared is composed of at least 1 component to be compared.

[0014] The manual stop valve component ⅡA is composed of at least 1 manual stop valve; the manual stop valve component ⅡB is composed of at least 1 manual stop valve.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The present utility model performs measurement and comparison on the marked flowmeter, the component to be compared and the standard water tank through the control system to obtain the error, and judges whether the meter under calibration is within the allowable error range according to the error. Moreover, the comparison device has a simple structure, can master the accuracy of the flowmeter under use conditions, and perform timely tracking, so as to improve the normal usage rate and accuracy of the flowmeter, provide real and effective data indicators for production, and achieve the purpose of energy conservation and efficiency improvement. Description of the Drawings

[0017] Figure 1 It is a structural schematic diagram of the present utility model;

[0018] In the figure: 1 - control system, 2 - water pump, 3 - foam remover, 4 - marked flowmeter assembly, 5 - manual shut-off valve assembly I, 6 - meter to be compared assembly, 7 - manual shut-off valve assembly II, 8 - pneumatic quick-opening valve I, 9 - pneumatic quick-opening valve II, 10 - standard water tank, 11 - liquid level gauge, 12 - drain valve, 13 - marked flowmeter A, 14 - marked flowmeter B, 15 - manual shut-off valve assembly IA, 16 - manual shut-off valve assembly IB, 17 - meter to be compared assembly A, 18 - meter to be compared assembly B, 19 - manual shut-off valve assembly IIA, 20 - manual shut-off valve assembly IIB, 21 - pneumatic swivel joint I, 22 - pneumatic swivel joint II, 23 - start button, 24 - swivel joint I, 25 - swivel joint II, 26 - swivel joint III, 27 - swivel joint IV. Detailed implementation

[0019] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and embodiments, but the scope of protection claimed is not limited thereto.

[0020] As Figure 1 shown in the structural schematic diagram of the present utility model, a flowmeter comparison device includes a control system 2, a water pump 1, a marked flowmeter assembly 4, a meter to be compared assembly 6, a pneumatic quick-opening valve I 8, a pneumatic quick-opening valve II 9 and a liquid level gauge 11 that are electrically connected to the control system 2; a foam remover 3 is provided between the water pump 1 and the marked flowmeter assembly 4; a manual shut-off valve assembly I 5 is provided between the marked flowmeter assembly 4 and the meter to be compared assembly 6; the right end of the meter to be compared assembly 6 is connected to one end of a manual shut-off valve assembly II 7 through a water pipe, the other end of the manual shut-off valve assembly II 7 is connected to one end of the pneumatic quick-opening valve I 8 and the pneumatic quick-opening valve II 9 through a water pipe, the other end of the pneumatic quick-opening valve I 8 is connected to the standard water tank 10 through a water pipe, the other end of the pneumatic quick-opening valve II 9 is connected to one end of the drain valve 12 through a water pipe, and the other end of the drain valve 12 is connected to the standard water tank 10 through a water pipe; the liquid level gauge 11 is also connected to the standard water tank 10 through a water pipe.

[0021] The marked flowmeter assembly 4 includes a marked flowmeter A 13 and a marked flowmeter B 14, and the water inlet ends of the marked flowmeter A 13 and the marked flowmeter B 14 are both connected to the water outlet end of the foam remover 3 through water pipes.

[0022] The manual shut-off valve assembly I 5 includes a manual shut-off valve assembly IA 15 and a manual shut-off valve assembly IB 16; the water inlet end of the manual shut-off valve assembly IA 15 is connected to the water outlet end of the marked flowmeter A 13 through a water pipe; the water inlet end of the manual shut-off valve assembly IB 16 is connected to the water outlet end of the marked flowmeter B 14 through a water pipe.

[0023] The component to be compared 6 includes the component to be compared A17 and the component to be compared B18; the water inlet end of the component to be compared A17 is connected to the water outlet end of the manual stop valve component ⅠA15 through a water pipe; the water inlet end of the component to be compared B18 is connected to the water outlet end of the manual stop valve component ⅠB16 through a water pipe.

[0024] The manual stop valve component Ⅱ7 includes the manual stop valve component ⅡA19 and the manual stop valve component ⅡB20; the water inlet end of the manual stop valve component ⅡA19 is connected to the water outlet end of the component to be compared A17 through a water pipe; the water inlet end of the manual stop valve component ⅡB20 is connected to the water outlet end of the component to be compared B18 through a water pipe.

[0025] The control system 2 includes a connected PLC controller and an intelligent flow integrator; the D001 pin of the PLC controller is connected to the start button 23 of the water pump 1, the AI01 pin is connected to the rotary joint Ⅰ24 of the marked flowmeter A13 and the rotary joint Ⅱ25 of the marked flowmeter B14, the AI02 pin is connected to the rotary joint Ⅲ26 of the component to be compared A17 and the rotary joint Ⅳ27 of the component to be compared B18, the AI03 pin is connected to the input end of the liquid level gauge 11, the D002 pin and the D003 pin are respectively connected to the pneumatic rotary joint Ⅰ21 of the pneumatic quick-opening valve Ⅰ8 and the pneumatic rotary joint Ⅱ22 of the pneumatic quick-opening valve Ⅱ9, and the RS485 pin is connected to the RS485 pin of the intelligent flow integrator;

[0026] Specifically, the model of the intelligent flow integrator is: JL-XMJA.

[0027] The model of the PLC controller is: SIMATIC S7-1200.

[0028] The manual stop valve component ⅠA15 is composed of at least 1 manual stop valve; the manual stop valve component ⅠB16 is composed of at least 1 manual stop valve;

[0029] The component to be compared A17 is composed of at least 1 component to be compared; the component to be compared B18 is composed of at least 1 component to be compared;

[0030] The manual stop valve component ⅡA19 is composed of at least 1 manual stop valve; the manual stop valve component ⅡB20 is composed of at least 1 manual stop valve;

[0031] Specifically, when the manual stop valve assembly ⅠA15 and the manual stop valve assembly ⅠB16 are respectively composed of multiple manual stop valves, the compared meter assembly A17 and the compared meter assembly B18 are respectively composed of multiple compared meters, and the manual stop valve assembly ⅡA19 and the manual stop valve assembly ⅡB20 are respectively composed of multiple manual stop valves, then one manual stop valve is arranged on each side of a compared meter.

[0032] Embodiment 1

[0033] Working principle of the control system 2: Press the start button of the PLC controller to send a start signal to start the water pump 1. The pneumatic quick-opening valve Ⅱ9 is closed, and the pneumatic quick-opening valve Ⅰ8 is opened. After the flow rate display of the standard flowmeter is stable, press the comparison button of the PLC controller. The pneumatic quick-opening valve Ⅱ9 is opened, and the pneumatic quick-opening valve Ⅰ8 is closed. The comparison flow enters the standard water tank. The PLC controller starts to read the data of the standard flowmeter, the meter under test, and the liquid level gauge for on-line comparison. When the liquid level reaches the high alarm, the comparison automatically stops, and the comparison result is displayed on the intelligent flow integrator. The pneumatic quick-opening valve Ⅱ9 is closed, the pneumatic quick-opening valve Ⅰ8 is opened, and the stop button is pressed to stop the water pump.

[0034] Embodiment 2

[0035] Start the water pump 1 to pump up water. After passing through the foam remover 3, ensure that the subsequent pipeline is full of water. For the accuracy of comparison, divide it into two ranges. Compare the DN80 flowmeter. After the water passes through the foam remover 3, it enters the standard flowmeter A41, then passes through the manual stop valve DN80 of the manual stop valve assembly ⅠA15, and then passes through the manual stop valve DN80 of the manual stop valve assembly ⅠB16. All other manual stop valves are closed. The pneumatic quick-opening valve 8 is opened. After the water flow is normal, press the comparison button on the PLC controller. The pneumatic quick-opening valve Ⅰ8 is closed, and the pneumatic quick-opening valve Ⅱ9 is opened. The control system 2 starts to record data. When the liquid level of the standard water tank 10 reaches the set value, the water pump 1 automatically stops. The control system 2 performs metering comparison on the standard flowmeter, the meter under test, and the standard water tank to obtain the error, and judges whether the meter under test is within the allowable error range according to the error.

[0036] Advantages of the present utility model: Through the control system, metering comparison is performed on the standard flowmeter, the compared meter, and the standard water tank to obtain the error, and it is judged whether the meter under test is within the allowable error range according to the error. Moreover, the comparison device has a simple structure, can master the accuracy of the flowmeter during use, and perform timely tracking, so as to improve the normal usage rate and accuracy of the flowmeter, provide real and effective data indicators for production, and achieve the purpose of energy saving and efficiency improvement.

Claims

1. A flow meter comparison device, characterized in that: The invention comprises a control system (2), a water pump (1) electrically connected to the control system (2), a marking flow meter assembly (4), a measured meter assembly (6), a pneumatic quick-opening valve I (8), a pneumatic quick-opening valve II (9) and a liquid level meter (11); a foam remover (3) is arranged between the water pump (1) and the marking flow meter assembly (4); a manual stop valve assembly I (5) is arranged between the marking flow meter assembly (4) and the measured meter assembly (6); the right end of the measured meter assembly (6) is connected to the manual stop valve assembly (11) through a water pipe. One end of the valve assembly II (7) is connected, the other end of the manual stop valve assembly II (7) is connected to the pneumatic quick-opening valve I (8) and one end of the pneumatic quick-opening valve II (9) through a water pipe, the other end of the pneumatic quick-opening valve I (8) is connected to the standard water tank (10) through a water pipe, the other end of the pneumatic quick-opening valve II (9) is connected to one end of the sewage valve (12) through a water pipe, and the other end of the sewage valve (12) is connected to the standard water tank (10) through a water pipe; the liquid level meter (11) is also connected to the standard water tank (10) through a water pipe.

2. A flow meter comparison device as claimed in claim 1, characterized in that: The marked flow meter assembly (4) comprises a marked flow meter A (13) and a marked flow meter B (14), and the water inlet ends of the marked flow meter A (13) and the marked flow meter B (14) are both connected to the water outlet end of the foam remover (3) through a water pipe.

3. A flow meter comparison device according to claim 1, characterized in that: The manual stop valve assembly I (5) comprises a manual stop valve assembly IA (15) and a manual stop valve assembly IB (16); the water inlet end of the manual stop valve assembly IA (15) is connected to the water outlet end of the marked flow meter A (13) through a water pipe; the water inlet end of the manual stop valve assembly IB (16) is connected to the water outlet end of the marked flow meter B (14) through a water pipe.

4. A flow meter comparison device according to claim 1, characterized in that: The compared meter component (6) comprises a compared meter component A (17) and a compared meter component B (18); the water inlet end of the compared meter component A (17) is connected to the water outlet end of the manual stop valve component IA (15) through a water pipe; the water inlet end of the compared meter component B (18) is connected to the water outlet end of the manual stop valve component manual stop valve component IB (16) through a water pipe.

5. A flow meter comparison device as claimed in claim 1, characterized in that: The manual stop valve assembly II (7) comprises a manual stop valve assembly IIA (19) and a manual stop valve assembly IIB (20); the water inlet end of the manual stop valve assembly IIA (19) is connected to the water outlet end of the measured surface assembly A (17) through a water pipe; the water inlet end of the manual stop valve assembly IIB (20) is connected to the water outlet end of the measured surface assembly B (18) through a water pipe.

6. A flow meter comparison device as claimed in claim 1, characterized in that: The control system (2) comprises a PLC controller and an intelligent flow totalizer connected to each other; the D001 pin of the PLC controller is connected to the start button (23) of the water pump (1), the AI01 pin is connected to the rotary joint I (24) of the flow meter A (13) and the rotary joint II (25) of the flow meter B (14), the AI02 pin is connected to the rotary joint III (26) of the measured meter component A (17) and the rotary joint IV (27) of the measured meter component B (18), the AI03 pin is connected to the input end of the liquid level meter (11), the D002 pin and the D003 pin are respectively connected to the pneumatic rotary joint I (21) of the pneumatic quick-opening valve I (8) and the pneumatic rotary joint II (22) of the pneumatic quick-opening valve II (9), and the RS485 pin is connected to the RS485 pin of the intelligent flow totalizer.

7. A flow meter comparison device as claimed in claim 6, characterized in that: The model of the PLC controller is: SIMATIC S7-1200.

8. A flow meter comparison device as claimed in claim 3, characterized in that: The manual stop valve assembly IA (15) is composed of at least one manual stop valve; the manual stop valve assembly IB (16) is composed of at least one manual stop valve.

9. A flow meter comparison device as claimed in claim 4, characterized in that: The compared table component A (17) is composed of at least one compared table; the compared table component B (18) is composed of at least one compared table.

10. A flow meter comparison device as claimed in claim 5, characterized in that: The manual stop valve assembly IIA (19) is composed of at least one manual stop valve; the manual stop valve assembly IIB (20) is composed of at least one manual stop valve.

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