OVER-PRESSURE PROTECTION SYSTEM

• US 20200132093A1
• Filed: 10/24/2018
• Published: 04/30/2020
• Est. Priority Date: 10/24/2018
• Status: Active Grant

• Current Assignee: Mueller International LLC (Mueller Water Products Incorporated)
• Original Assignee: Mueller International LLC (Mueller Water Products Incorporated)
• Inventors: Gibson, Daryl Lee, Sitnikov, Timofey, Robertson, Bruce
• Granted Patent: US 10,767,673 B2
• Time in Patent Office: Days
• CPC Class Codes: F15B 11/0423 by controlling pump output or bypass, other than to maintain constant speed
• CPC Class Codes: F15B 20/007 Overload
• CPC Class Codes: F15B 21/048 Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
• CPC Class Codes: F15B 2211/251 High pressure control
• CPC Class Codes: F15B 2211/252 Low pressure control
• CPC Class Codes: F15B 2211/253 Pressure margin control, e.g. pump pressure in relation to load pressure
• CPC Class Codes: G01L 19/06 Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
• CPC Class Codes: G01L 19/0609 Pressure pulsation damping arrangements

Abstract

Example aspects of an over-pressure protection system and a method for using an over-pressure protection system are disclosed. The over-pressure protection system can comprise a main body comprising a main body housing, the main body housing defining a main body chamber; an incompressible fluid received in the main body chamber, the fluid defining a fluid pressure; a pressure sensor for measuring the fluid pressure of the incompressible fluid, the pressure sensor configurable an activated mode and a deactivated mode; a first barrier movable between a first position and a second position; wherein the over-pressure protection system is configurable an under-pressure configuration, wherein the pressure of the incompressible fluid is below a threshold pressure, and an over-pressure configuration, wherein the pressure of the incompressible fluid is equal to or above the threshold pressure; and a control system configuring the pressure sensor in the deactivated mode in the over-pressure configuration

Claims

1. An over-pressure protection system comprising:

a main body comprising a main body housing, the main body housing defining a main body chamber;

an incompressible fluid received in the main body chamber, the fluid defining a fluid pressure;

a pressure sensor configured to measure fluid pressure of the incompressible fluid, the pressure sensor configurable in an activated mode and a deactivated mode;

a first barrier configured to move between a first position and a second position;

wherein the over-pressure protection system is configurable in an under-pressure configuration, wherein the pressure of the incompressible fluid is below a threshold pressure, and an over-pressure configuration, wherein the pressure of the incompressible fluid is equal to or above the threshold pressure; and

a control system configured to place the pressure sensor in the deactivated mode in the over-pressure configuration.

2. The over-pressure protection system of claim 1, wherein the control system is configure to place the pressure sensor in the activated mode in the under-pressure configuration.

3. The over-pressure protection system of claim 1, wherein in the under-pressure configuration, the first barrier is in the first position, and in the over-pressure configuration, the first barrier is in the second position.

4. The over-pressure protection system of claim 3, wherein the first barrier defines a seal and the main body defines a stop surface, and wherein the seal is disengaged from the stop surface in the first position and the seal is engaged with the stop surface in the second position.

5. The over-pressure protection system of claim 1, further comprising a spring, the spring defining a spring force.

6. The over-pressure protection system of claim 5, wherein the fluid pressure is less than the spring force in the under-pressure configuration and greater than the spring force in the over-pressure configuration.

7. The over-pressure protection system of claim 1, further comprising a first wire on the first barrier and a second wire on the main body housing, wherein, in the under-pressure configuration, the first wire does not contact the second wire, and in the over-pressure configuration, the first wire contacts the second wire.

8. The over-pressure protection system of claim 1, wherein the control system sends an alert signal to a third party when the over-pressure protection system is in the over-pressure configuration.

9. The over-pressure protection system of claim 1, wherein the main body housing is formed from a sheet material.

10. The over-pressure protection system of claim 1, wherein the main body housing defines a spring.

11. The over-pressure protection system of claim 10, wherein the spring is configurable in an un-expanded orientation in the under-pressure configuration and an expanded orientation in the over-pressure configuration.

12. The over-pressure protection system of claim 1, wherein the first barrier comprises a flexible member and a seal attached to the flexible diaphragm.

13. An over-pressure protection system comprising:

a main body comprising a main body housing, the main body housing defining a main body chamber;

an incompressible fluid received in the main body chamber, the incompressible fluid defining a fluid pressure;

a pressure sensor configured to measure fluid pressure of the incompressible fluid;

a first barrier comprising a barrier housing and a seal, the barrier housing defining a barrier chamber, the seal received in the barrier chamber, the seal configured to move between a first seal position, wherein the barrier chamber is sealed, and a second seal position, wherein the barrier chamber is unsealed; and

a second barrier positioned in the main body chamber, the second barrier comprising a sealing surface, the sealing surface configured to move between a first sealing surface position and a second sealing surface position.

14. The over-pressure protection system of claim 13, wherein the seal is biased to the first seal position by a spring, the spring defining a spring force.

15. The over-pressure protection system of claim 14, wherein the over-pressure protection system is configurable in an under-pressure configuration, wherein the fluid pressure is less than the spring force, and an over-pressure configuration, wherein the fluid pressure is greater than the spring force.

16. The over-pressure protection system of claim 13, wherein, in the under-pressure configuration, the seal is positioned in the first seal position and the sealing surface is positioned in the first sealing surface position, and wherein, in the over-pressure configuration, the seal is positioned in the second seal position and the sealing surface is positioned in the second sealing surface position.

17. The over-pressure protection system of claim 13, further comprising a channel extending between the barrier chamber and the main body chamber.

18. A method for operating an over-pressure protection system, the method comprising:

coupling the over-pressure protection system to a pipeline, the pipeline defining a pipeline pressure, the over-pressure protection system comprising a main body housing, the main body housing defining a main body chamber, an incompressible fluid received in the main body chamber;

transmitting the pipeline pressure to the incompressible fluid;

measuring a fluid pressure of the incompressible fluid with a pressure sensor of the over-pressure protection system;

reconfiguring the over-pressure protection system from an under-pressure configuration to an over-pressure configuration at a threshold pressure of the incompressible fluid; and

deactivating the pressure sensor in the over-pressure configuration.

19. The method of claim 18, wherein reconfiguring the over-pressure protection system from an under-pressure configuration to an over-pressure configuration at a threshold pressure of the incompressible fluid comprises unsealing a barrier chamber of a first barrier, receiving a portion of the incompressible fluid in the barrier chamber, and engaging a second barrier with a stop surface of the main body housing.

20. The method of claim 18, wherein deactivating the pressure sensor comprises contacting a first wire of the second barrier with a second wire of the main body housing and sending an electrical signal to deactivate the pressure sensor.