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Flow measurement device and system with anti-blocking function

A flow measurement device and function technology, applied in the field of flow measurement devices and systems with anti-blocking function, can solve the problems of unstable differential pressure signal, easy accumulation and scaling, etc., to achieve stable flow coefficient, strong impact ability, and reduced The effect of permanent pressure loss

Pending Publication Date: 2018-04-13
NANJING EXACTRA AUTOMATION CONTROL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention proposes a flow measurement device and system with anti-blocking function, which can overcome the defects of unstable differential pressure signal and easy accumulation of fouling in existing flow measurement devices

Method used

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  • Flow measurement device and system with anti-blocking function
  • Flow measurement device and system with anti-blocking function

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] figure 1 A schematic structural view showing a flow measuring device with an anti-blocking function according to a first exemplary embodiment of the present invention, figure 2 A fluid state diagram is shown when the flow measurement device with anti-blocking function according to the first exemplary embodiment of the present invention is in operation.

[0076] Such as figure 1 with 2 As shown, flow measurement devices with anti-blocking function include:

[0077] Pressure guiding plate 2;

[0078] The rectifying dust cover 1, the rectifying dust cover 1 is arranged on one side of the pressure guide plate 2, and the rectifying dust cover 1 and the pressure guiding plate 2 surround to form a cavity communicating with the outside of the rectifying dust cover 1;

[0079] High pressure pressure induction pipe 3, one end of the high pressure pressure induction pipe 3 is arranged in the cavity;

[0080] Low-pressure pressure-inducing pipe 4, one end of low-pressure-indu...

Embodiment 2 4

[0085] The difference between the flow measurement device with anti-blocking function according to the second, third and fourth exemplary embodiments of the present invention and the first exemplary embodiment lies in the shape of the rectifying dust cover. Figure 3a , Figure 3b with Figure 3c The perspective views of the rectifying dust cover of the flow measuring device with anti-blocking function according to the second, third and fourth exemplary embodiments of the present invention are respectively shown. Such as Figure 3a , Figure 3b with Figure 3c As shown, the rectifying dust cover can be in the shape of a cone, a pyramid or a curved surface cone, and these shapes are all conducive to reducing the resistance of the rectifying dust cover to the fluid.

Embodiment 5 9

[0087] The difference between the flow measurement devices with anti-blocking function according to the fifth to ninth exemplary embodiments of the present invention and the first exemplary embodiment lies in the shape of the pressure guiding plate. Figure 4a , Figure 4b , Figure 4c , Figure 4d with Figure 4e The perspective views of the pressure guide plates of the flow measurement devices with anti-blocking function according to the fifth to ninth exemplary embodiments of the present invention are respectively shown. exist Figure 4a In the shown embodiment, the pressure guiding plate is a curved surface; Figure 4b In the shown embodiment, the pressure guiding plate is a disc; Figure 4c In the shown embodiment, the pressure guide plate is in the shape of a square tray; Figure 4d In the shown embodiment, the upper half of the pressure guiding plate is a curved surface, and the lower half is rectangular; Figure 4e In the illustrated embodiment, the pressure gui...

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Abstract

Provided are a flow measurement device and system with an anti-blocking function. The flow measurement device includes a pressure guiding plate, a dustproof flow rectifying cover, a high pressure guiding pipe and a low pressure guiding pipe; the dustproof flow rectifying cover is arranged at one side of the pressure guiding plate, and the dustproof flow rectifying cover and the pressure guiding plate define a cavity communicated with the exterior of the dustproof flow rectifying cover; one end of the high pressure guiding pipe is arranged in the cavity; one end of the low pressure guiding pipeis arranged at the side, opposite to the dustproof cover, of the pressure guiding plate. The flow measurement device can accurately measure the flow and have an anti-blocking effect.

Description

technical field [0001] The invention relates to the technical field of fluid measurement, in particular to a flow measurement device and system with an anti-blocking function. Background technique [0002] Dirty gas flow measurement is becoming increasingly important today. Whether it is the blast furnace, converter, coke oven gas of metallurgical enterprises, or the flue gas emitted by thermal power plants, as well as the primary and secondary air volume of boilers, cold furnace smoke flow, and pulverizing ventilation, accurate flow measurement is required. The above-mentioned measured gas medium often has the characteristics of large flow pipe diameter, limited length of straight pipe section, high medium temperature, low flow velocity, and high dust concentration. Conventional flow measurement devices are difficult to adapt to these characteristics. [0003] For example, the orifice plate requires a long front and rear straight pipe section and is prone to measurement de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/34
CPCG01F1/34
Inventor 明晓
Owner NANJING EXACTRA AUTOMATION CONTROL TECH CO LTD
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