Ball valve with flow-rate gauge incorporated directly in the ball

• US 6,923,074 B2
• Filed: 05/02/2003
• Issued: 08/02/2005
• Est. Priority Date: 05/03/2002
• Status: Expired due to Fees

• Current Assignee: Enolgas Bonomi S.p.A.
• Original Assignee: Enolgas Bonomi S.p.A.
• Inventors: Benini, Ernesto, Lazzaretto, Andrea, Cipolla, Giovanni
• Primary Examiner(s): PATEL, HARSHAD R
• Application Number:
  US10/428,971
• Publication Number:
  US 20030205095A1
• Time in Patent Office: 823 Days
• Field of Search: 738/615.5, 738/615.3, 738/615.2, 731/68, 137/487.5, 137/614.17, 251/315.16, 251/118, 251/315.01, 138/40, 138/44
• US Class Current: 73/861.55
• CPC Class Codes: G01F 1/40 Details of construction of the flow constriction devices
• CPC Class Codes: G01F 15/005 Valves valves in general F16K

Abstract

A fluid-flow measuring ball valve includes a replaceable ball within a housing. The replaceable ball includes a flow restriction calibrated to the characteristics of the fluid. Pressure ports on either side of the ball provide for obtaining pressure readings which can be used to determine fluid flow.

Claims

1. A fluid-flow measuring ball valve comprising:

a housing;

a replaceable ball contained within said housing;

an actuator for turning said replaceable ball within said housing;

said replaceable ball including a calibrated orifice formed within said replaceable ball, wherein said calibrated orifice is constructed and arranged to be a constriction to the passage of a fluid that passes through said replaceable ball;

a first pressure port positioned in said housing upstream from said replaceable ball; and

a second pressure port positioned in said housing downstream from said replaceable ball.

2. The fluid-flow measuring ball valve of claim 1 further comprising:

a first flanged end and 2 second flanged end connected to opposite sides of said housing;

first and second tie-rods enabling the dismantling of the fluid-flow measuring ball valve and replacement of said replaceable ball with a second ball including a borehole whose calibration is determined the dynamic or thermodynamic characteristics of the fluid.

3. The fluid-flow measuring ball valve of claim 1, wherein said first and second pressure ports can be rotated with respect to said housing.

4. The fluid-flow measuring ball valve of claim 3, wherein the rotation of the two pressure intake includes rotating the two pressure intakes to a position above the ball for measurement of the flow rate of a gas.

5. The fluid-flow measuring ball valve of claim 3, wherein the rotation of the two pressure intake includes rotating the two pressure intakes to a position below the ball for measurement of the flow rate of a liquid.

6. The fluid-flow measuring ball valve of claim 1, wherein the measurement of the flow rate includes the measurement of the flow-rate of a gas.

7. The fluid-flow measuring ball valve of claim 1, wherein the measurement of the flow rate includes the measurement of the flow-rate of a liquid.

8. The fluid-flow measuring ball valve of claim 1, wherein the measurement of the flow rate includes the measurement of fluids with different dynamic and thermodynamic characteristics.