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Pressure relief apparatus for hydropneumatic vessel

A hydropneumatic and pressure technology, used in mechanical equipment, pipe components, water supply mains, etc., can solve problems such as valve failure, wear, interference with normal work, etc., and achieve the effect of reducing the amount of energy

Inactive Publication Date: 2012-11-28
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Without noticing this manifestation, the worker is likely not to notice the underlying conditions that cause the unanticipated overstress
[0007] Additionally, since an overpressure condition is allowed in the incompressible fluid flow, repeated actuation of the pressure relief valve is allowed, potentially causing wear which can eventually lead to failure
Even if wear does not cause failure, repeated actuation of a pressure relief valve in a liquid stream can cause dissolved solids or other contaminants present in the incompressible fluid to interfere with proper valve operation
Over time, this contamination can cause the pressure relief valve to plug, corrode, or seize, eventually leading to valve failure
[0008] In the event of such a pressure relief valve failure, an incompressible fluid flow could be left under pressure unchecked, possibly resulting in periodic or continuous unsafe pressure in the hydropneumatic tank

Method used

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  • Pressure relief apparatus for hydropneumatic vessel
  • Pressure relief apparatus for hydropneumatic vessel
  • Pressure relief apparatus for hydropneumatic vessel

Examples

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example

[0046] Suppose the fluid vessel 100 is as Figures 1A-1B shown and have the volumes shown in Table 1 below, except that the pressure relief device 180 is not provided. In addition, compressible and incompressible fluids are assumed to have the properties described in Table 1 below:

[0047] Table 1

[0048]

[0049] Next, assume a sufficiently inflatable flexible diaphragm 110 such that the entire internal volume of the fluid vessel (now free of any incompressible fluid) is initially prefilled to atmospheric pressure with air as the compressible fluid. It should be understood that the above assumptions reflect an ideal state, which, although unlikely to be realized in practice, serves to illustrate the beneficial effects of the present invention.

[0050] The fluid vessel is then connected to the hydropneumatic system 10 and an incompressible fluid (water) is introduced into the incompressible fluid portion 120 of the fluid vessel from an incompressible fluid source. T...

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PUM

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Abstract

An accumulator with a bladder or a diaphragm separating a gas chamber from an incompressible liquid chamber, the accumulator having a pressure relief valve to release gas from the gas chamber in case of overpressure; a device for filling and releasing the gas from the gas chamber.

Description

Background technique [0001] Incompressible fluids such as water or other liquids are commonly supplied for residential and commercial applications. Typically, such fluids are supplied by a pump or other motive force to an outlet, such as a faucet, for use by a user or machine. Users or machines often require a relatively high steady flow of fluid to ensure that the fluid is delivered in a timely manner for a given end use. For example, a user may need to quickly fill several containers with drinking water. As another example, a commercial coffee machine may require a relatively large volume of water to fill a water bottle in short time intervals, thereby satisfying customers with hot coffee during periods of high demand. In such applications, it may be desirable to provide a steady flow of water for consistent brewing so that each batch of brewed coffee will taste the same. [0002] Usually, pumps alone are not enough to meet the above needs of stable high flow. A typical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B7/08F16L55/053E03B7/09F15B1/10
CPCF16L55/053E03B7/075Y10T137/0318
Inventor 马丁·J·布拉兹赫曼·R·帕特尔尼尔·M·杜瓦尔
Owner 3M INNOVATIVE PROPERTIES CO
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