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Pressure overflow type pressure/flow stabilizing system and method

A voltage stabilization and overflow technology, which is used in liquid/fluid solid measurement, measurement devices, instruments, etc., to achieve the effect of saving construction costs and small footprint

Inactive Publication Date: 2012-02-15
NAT INST OF METROLOGY CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can only meet the general voltage regulation requirements

Method used

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  • Pressure overflow type pressure/flow stabilizing system and method
  • Pressure overflow type pressure/flow stabilizing system and method
  • Pressure overflow type pressure/flow stabilizing system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1 It is a sectional view of the pressure stabilizing system of the liquid flow metering standard device of the present invention, as shown in the figure, the voltage stabilizing system includes a main body container 1; an air compressor 7 connected to the main body container 1, and the air compressor 7 is used to The main body container 1 is filled with a certain pressure of gas; between the main body container 1 and the air compressor 7, an on-off valve 9 is arranged, and the on-off valve 9 is used to control the filling or release of gas; Baffle plate 2, the left side of the baffle plate 2 is zone A, and the right side of the baffle plate 2 is zone B, wherein the inlet port 4 is set in zone B, and the outlet port 5 is set in zone A. Orifice 5 is separated from inlet port 4; Partition plate 13 is further provided with in main body container 1, and the left side of this partition plate 13 is B district, and the right side of partition plate 13 is C district; fig...

Embodiment 2

[0035] As another modified embodiment of the present invention, relative to figure 1 The overflow groove in the horizontal direction, in this embodiment, the overflow groove is set in the direction vertical to the paper surface, and there are water flow channels at both ends of the overflow groove in the length direction, when the overflow from the overflow groove The liquid flows into the water flow channel on both sides from the bottom surface of the overflow structure 16, and then flows into the backflow area from the water flow channel. The height of the channel at the end near the return zone is slightly lower to facilitate the flow of the overflow liquid into the return zone. Among them, according to the specific design requirements of the main container structure, the specific structure and installation position of the overflow tank can be deformed, as long as the overflow effect can meet the voltage stabilization requirements of the voltage stabilization system.

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Abstract

The invention relates to a pressure stabilizing system which comprises a main container, an overflow groove, an overflow control component, a pneumatic control component and a liquid pumping component, wherein the main container is provided with an in-flow area, an out-flow area and a return flow area; the overflow groove is located above the in-flow area and out-flow area of the main container; liquid overflowing from the overflow groove flows to the return flow area of the main container; the overflow control component is located between the return flow area and a liquid pool, and controls the liquid level height of the liquid in the return flow area to be constant; the pneumatic control component is used for filling gas with specific pressure into the main container; and the liquid pumping component is used for pumping liquid in the liquid pool into the in-flow area of the main container. In the pressure stabilizing system provided by the invention, pressure in the main container is equivalent to a pressure head provided by a water tower; with enough overflow length, the liquid level height in the tank can be protected from the influence of the change of overflow discharge; andthrough the closed-loop regulation of an overflow control valve, the liquid level height of the return flow area is stable, so that the capacity and pressure in the tank are constant and a good pressure stabilizing effect of the pressure stabilizing system is ensured. In addition, the pressure stabilizing system provided by the invention can adjust the pressure output, occupies a small floor area, is not limited by the ambient environment and site, saves the construction cost and can replace the water-tower pressure stabilizing method to a certain degree.

Description

technical field [0001] The invention relates to a liquid flow measurement standard device for verifying and calibrating a liquid flow meter, more particularly to a pressure overflow type stabilizing system in a liquid flow measurement standard device, and the pressure overflow type pressure stabilization system using the pressure overflow type A method for stabilizing voltage in a voltage stabilizing system. Background technique [0002] Flow measurement standard devices are widely used in the verification and calibration of flow meters. During the verification and calibration process, it is very important to maintain the stability of the flow through the instrument, and the flow stability is also an important performance index of the device. For liquid flow measurement standard devices, water pumps are generally used as the power source of fluids. Changes in the voltage and frequency of the power grid directly affect the rotation speed of the motor, resulting in changes in...

Claims

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Application Information

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IPC IPC(8): G01F25/00
Inventor 胡鹤鸣孟涛王池
Owner NAT INST OF METROLOGY CHINA