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Turbine flowmeter flow compensation parameter test system

A turbine flowmeter and flow compensation technology, applied in the field of precision instruments, can solve problems such as changes and difficulty in effectively maintaining the balance state of the impeller

Pending Publication Date: 2022-08-02
ANHUI RUILING GAUGE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, in order to solve the problem that the stress state of the impeller in the turbine flowmeter changes dynamically with the fluid measurement state, which makes it difficult to effectively maintain the balance state of the impeller; the invention provides a test system for the flow compensation parameters of the turbine flowmeter

Method used

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  • Turbine flowmeter flow compensation parameter test system
  • Turbine flowmeter flow compensation parameter test system
  • Turbine flowmeter flow compensation parameter test system

Examples

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Effect test

Embodiment 1

[0044] This embodiment provides a magnetic levitation-based tangential turbine flowmeter, which has the same main structure and working principle as a conventional tangential turbine flowmeter; both include a meter head and a measurement component.

[0045] Among them, such as figure 1 and figure 2 As shown, the measurement assembly includes a base plate 1 , a turbine casing 2 , an impeller 3 , two bushings 4 , a fluid inlet 5 and a fluid outlet 6 . The turbine casing 2 is fixedly connected to the base plate 1 , and the two shaft sleeves 4 are respectively connected to both sides of the turbine casing 2 . Both ends of the impeller shaft 7 in the impeller 3 pass through the turbine casing 2 and are rotatably connected with the two shaft sleeves 4 . The turbine shell 2 contains a turbine cavity, the impeller 3 is located in the turbine cavity, the fluid inlet 5 and the fluid outlet 6 are respectively located on both sides of the turbine cavity, and the connecting direction of...

Embodiment 2

[0070] This embodiment provides a method for testing the deviation correction of the impeller 3 of a turbine flowmeter, and the flowmeter tested by the test method is the tangential turbine flowmeter based on the side suspension in the first embodiment. In the turbine flowmeter, magnetic bearings 8 are arranged in the shaft sleeves 4 at both ends of the impeller 3 ; each set of magnetic bearings 8 includes a permanent magnet group 81 and an electromagnet group 82 . The permanent magnet group 81 and the electromagnet group 82 in the magnetic bearing 8 balance the influence of the gravity of the turbine and the dynamic load caused by the fluid by generating a constant magnetic field and a dynamic magnetic field respectively, thereby keeping the impeller shaft 7 always in the center of the shaft sleeve 4 .

[0071] The main task of the testing method provided in this embodiment is to establish a mapping relationship between the excitation current of the electromagnet group 82 in t...

Embodiment 3

[0101] This embodiment provides a test system for flow compensation parameters of a turbine flowmeter, and the test system is mainly used to implement the deviation correction test method of the impeller 3 of a turbine flowmeter as described in the second embodiment.

[0102] The test object of the test system provided in this embodiment is the magnetic levitation-based tangential turbine flowmeter as described in Embodiment 1. like Figure 1-3 As shown, the turbine flowmeter includes two parts: the meter head and the measuring assembly. The measurement assembly includes: a base plate 1 , a turbine casing 2 , an impeller 3 , two shaft sleeves 4 , a fluid inlet 5 and a fluid outlet 6 . Both sides of the turbine casing 2 are fixedly connected to the base plate 1 , and the shaft sleeve 4 is fixedly connected to the turbine casing 2 . The two ends of the impeller shaft 7 in the impeller 3 are respectively sleeved in the two shaft sleeves 4, and the impeller shaft 7 and the shaft...

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Abstract

The invention relates to the field of precision instruments, in particular to a system for testing flow compensation parameters of a turbine flowmeter. The testing system comprises a reference flow meter, a fluid simulator, an offset sensing unit, a driving signal generating module and an upper computer. Wherein the structures and parameters of the measuring components in the reference flowmeter and the measured flowmeter are completely the same. The fluid simulator comprises a container, a circulating pump and a circulating pipeline. The fluid simulator is used for simulating fluid conveying working conditions required by testing. The offset sensing module is used for detecting the offset state of the impeller in the turbine cavity. And the driving signal generation module outputs a corresponding deviation correction control signal to the measured flow meter or the reference flow meter according to the received driving instruction. The upper computer is used for controlling the execution process of the whole test task. The test system provided by the invention is used for establishing a mapping relation between a flow detection result and a deviation correction control signal and generating a corresponding flow compensation control parameter so as to realize automatic deviation correction of the impeller.

Description

technical field [0001] The invention relates to the field of precision instruments, in particular to a test system for flow compensation parameters of a turbine flowmeter. Background technique [0002] The turbine flowmeter is a transmitter that uses the turbine as the detection element, obtains the flow rate of the fluid by collecting the rotational speed of the turbine, and calculates the corresponding flow data according to the flow rate of the fluid. Turbine flowmeters are widely used in the flow measurement of various high-precision liquid or gas media because of their good repeatability, small inertia, and fast response, and can be used to measure clean liquids with low viscosity. For different usage scenarios, the turbine flowmeter itself also has a variety of different structure types. Among them, the tangential turbine flowmeter is a turbine flowmeter whose fluid motion direction is tangent to the rotating surface of the turbine. [0003] Tangential turbines are mo...

Claims

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Application Information

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IPC IPC(8): G01F25/10
CPCG01F25/10
Inventor 徐伶俐胡炜段宏亮卜继兵张月
Owner ANHUI RUILING GAUGE MFG CO LTD
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