Apparatus for monitoring and controlling material handling system operations

• US 20100023170A1
• Filed: 07/21/2009
• Published: 01/28/2010
• Est. Priority Date: 06/08/2001
• Status: Abandoned Application

• Current Assignee: Spillguard Technologies, Inc.
• Original Assignee: Spillguard Technologies, Inc.
• Inventors: Sherwood, Randall L.
• Application Number:
  US12/460,595
• Publication Number:
  US 20100023170A1
• Time in Patent Office: Days
• US Class Current: 700/282
• CPC Class Codes: G05B 9/02 electric

Abstract

A SIS-SCS for a fluid transfer facility has a connective interface providing signal connectivity to overfill and ground circuitry in individual fill lanes, to pump and valve control circuitry, and to individual ones of input mechanisms, and executable software routines for monitoring input at the connective interface, and for providing output signals through the connective interface to external devices and equipment including at least the pump and valve control circuitry, the input mechanisms for input of fill parameters, and to the one or both of overfill and ground monitoring circuits.

Claims

1. A supervisory independent secondary shutoff control system (SIS-SCS) that interfaces with at least one stream in a material transfer facility, each stream of material transfer with one or more components including

a transfer apparatus composed of one or more material transfer components that are adapted to transfer material from a first material region to a second material region;

and

a primary monitor adapted to control the transfer apparatus wherein the SIS-SCS is adapted to send signals to the primary monitor or the transfer apparatus wherein the signals include signals instructing the transfer apparatus or primary monitor to end material transfer or signals allowing or forbidding material transfer or any combination of these signals.

2. The SIS-SCS of claim 1 wherein the SIS-SCS executes software routines that cause the SIS-SCS to monitor signals from the primary monitor or the transfer apparatus and cause the SIS-SCS to send signals instructing the transfer apparatus or primary monitor to end material transfer, signals allowing material transfer, signals forbidding material transfer, or any combination of these signals.

3. The SIS-SCS of claim 1 adapted to receive data from a vapor recovery system of a material transfer facility wherein the vapor recovery system comprises a pressure transducer upstream of an inlet filter.

4. The SIS-SCS of claim 3 adapted to initiate a signal communication when the pressure transducer registers a spike in pressure.

5. The SIS-SCS of claim 3 adapted to initiate a signal communication when the pressure transducer registers a pressure exceeding a pre-selected pressure.

6. The SIS-SCS of claim 3 wherein the pre-selected pressure is 18, 16, 14, 12, or 10 inches of water.

7. The SIS-SCS of claim 3 adapted to send signals forbidding material transfer when the pressure in the vapor recovery system fails to reach a pressure below a pre-selected pressure or adapted to send signals generating an alert when the pressure in the vapor recovery system fails to reach a pressure below a pre-selected pressure.

8. The SIS-SCS of claim 7 where in the pre-selected pressure is 18, 16, 14, 12, or 10 inches of water.

9. The SIS-SCS of claim 8 wherein the material of the material transfer facility is fuel or a petroleum-based product.

10. The SIS-SCS of claim 8 wherein the material of the material transfer facility is intended for animal or human consumption.

11. The SIS-SCS of claim 1 further adapted to receive input signals from the material transfer facility including signals from the primary monitor, the transfer apparatus, or other material transfer facility component;

to execute software routines based on input signals; and

to send signals to end material transfer;

signals allowing material transfer;

signals forbidding material transfer;

or any combination of these signals.

12. The SIS-SCS of claim 11 wherein other material transfer facility components include a vapor recovery system comprising a pressure transducer upstream of an inlet filter and input signals include signals from the pressure transducer.

13. The SIS-SCS of claim 12 adapted to signal an alert or shutdown material flow when the transducer registers a spike in pressure or send signals forbidding material transfer or generating an alert when the pressure in the vapor recovery system fails to reach a pressure below a pre-selected value.

20. The SIS-SCS of claim 1 wherein the system interfaces with at least one stream of fluid transfer in a fluid transfer facility, each stream of fluid transfer with (i) a flow control device that is either a start/stop switch or a batch controller system that includes an optional preset in communication with a meter, and a flow control valve connected to the meter;

(ii) a pump and valve controller system, in communication with the batch controller system, the flow control device, the pump and valve controller system with a secondary flow control valve connected to the flow control valve, a pump connected to the secondary flow control valve and to a product storage tank, and a motor control connected to the pump;

(iii) an emergency shutdown circuit or emergency fuel shut off circuit connected to the pump and valve controller system;

(iv) a ground verification unit connected to the pump and valve controller system; and

(v) an overfill detection system connected to the pump and valve controller system, wherein the batch controller system is adapted to send operation signals to the pump and valve controller system and the pump and valve controller system is adapted to respond to operation signals from the batch controller system wherein the operation signals include signals to start the pump, signals to open the flow control valve, or both of these signals,

the system comprising a monitoring system in communication with a supervisory pump and valve control system, or the emergency shutdown circuit or emergency fuel shut off circuit, or both

the monitoring system including

a input channel connected to the meter;

an input channel connected to the overfill-detection system, the ground-verification-unit, or both;

an output channel;

executable software routines adapted to process signals received through any of the input channels;

executable software routines adapted to sending signals through the output channel to the supervisory pump and valve control system, to sending signals through the output channel for activating the emergency shutdown circuit or emergency fuel shut off circuit, or to sending signals through the output channel to both; and

the supervisory pump and valve control system connected to the pump and valve controller system and adapted to

receiving signals from the monitoring system;

enabling or disabling pumping in response to the signals; and

opening or closing the secondary flow control valve in response to the signals.

14. The SIS-SCS of claim I wherein the SIS-SCS interfaces with at least one stream in a fluid transfer facility, each fluid stream with one or more components including

a flow control device;

a pump and valve controller system (PVS) connected to the flow control device, with a secondary flow control valve connected to the flow control valve, a pump connected to the secondary flow control valve and a product storage tank, and a motor control connected to the pump;

at least one of

a ground verification connected to the PVS;

an overfill detection system connected to the PVS;

or

a vapor recovery system connected to the PVS,

wherein the flow control device is adapted to send signals to the PVS and the PVS is adapted to respond to signals from the flow control device and,

wherein the SIS-SCS connects to the PVS and is adapted to enable or disable pumping;

open or close the secondary control valve or any combination of these in response to any combination of signals from the ground verification system, the overfill detection system or the vapor recovery system.

15. A method of preventing fuel spills in a fuel transfer station having fuel transfer components, an overfill detection unit that signals fuel overfill and a vapor recovery system that measures vapor recovery system pressure, wherein the method comprises:

beginning fuel transfer;

monitoring signals from the overfill detection unit and the vapor recovery system during fuel transfer; and

ending fuel transfer after observing a pressure spike in the vapor recovery system pressure.

16. The method of claim 15 wherein the step of ending fuel transfer comprises

registering a pressure spike in the vapor recovery system;

monitoring the fuel transfer components to predict time until the end of fuel transfer;

initiating secondary shutdown of fuel flow if time is greater than a predetermined value.

17. The method of claim 16 wherein the steps of registering, monitoring and initiating are carried out by a supervisory independent secondary shutoff control system (SIS-SCS) that interfaces with at least one fuel stream in a fuel transfer facility, each stream of material transfer with one or more components including

a transfer apparatus composed of one or more material transfer components that are adapted to transfer material from a first material region to a second material region;

and

a primary monitor adapted to control the transfer apparatus

wherein the SIS-SCS is adapted to send signals to the primary monitor or the transfer apparatus wherein the signals include signals instructing the transfer apparatus or primary monitor to end material transfer or signals allowing or forbidding material transfer or any combination of these signals.

18. A method of preventing fuel spills in a fuel transfer station having a vapor recovery system that measures vapor recovery system pressure with a pressure transducer upstream of an inlet, wherein the method comprises:

monitoring the pressure in the vapor recovery system;

sending signals forbidding fuel transfer if the pressure falls below a pre-selected value.

19. The method of claim 18 wherein the steps of monitoring and sending are carried out by a supervisory independent secondary shutoff control system (SIS-SCS) that interfaces with at least one fuel stream in a fuel transfer facility, each stream of material transfer with one or more components including

a transfer apparatus composed of one or more material transfer components that are adapted to transfer material from a first material region to a second material region;

and

a primary monitor adapted to control the transfer apparatus

wherein the SIS-SCS is adapted to send signals to the primary monitor or the transfer apparatus wherein the signals include signals instructing the transfer apparatus or primary monitor to end material transfer or signals allowing or forbidding material transfer or any combination of these signals.