Fluid transfer and depressurization system

• US 10,443,586 B1
• Filed: 09/12/2018
• Issued: 10/15/2019
• Est. Priority Date: 09/12/2018
• Status: Active Grant

• Current Assignee: Tpe Midstream LLC
• Original Assignee: Tpe Midstream LLC
• Inventors: Sahm, Douglas A
• Primary Examiner(s): Zollinger, Nathan C
• Application Number:
  US16/129,225
• Time in Patent Office: 398 Days
• CPC Class Codes: F04B 1/02 having two cylinders in V-arrangement F04B1/04
• CPC Class Codes: F04B 17/03 driven by electric motors
• CPC Class Codes: F04B 25/00 Multi-stage pumps
• CPC Class Codes: F04B 27/005 with two cylinders
• CPC Class Codes: F04B 27/02 having cylinders arranged oppositely relative to main shaft
• CPC Class Codes: F04B 35/008 the means being a fluid transmission link
• CPC Class Codes: F04B 39/121 Casings
• CPC Class Codes: F04B 39/122 Cylinder block
• CPC Class Codes: F04B 39/123 Fluid connections
• CPC Class Codes: F04B 49/08 Regulating by delivery pressure
• CPC Class Codes: F04B 49/22 by means of valves F04B49/03 takes precedence
• CPC Class Codes: F04B 53/16 Casings; Cylinders; Cylinder liners or heads; Fluid connections
• CPC Class Codes: F04B 7/0266 the inlet and discharge means being separate members
• CPC Class Codes: F04B 9/133 reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid motor
• CPC Class Codes: F17D 3/10 for taking out the product in the line sampling in general, examining the physical or chemical properties of materials G01N
• CPC Class Codes: F17D 5/02 Preventing, monitoring, or locating loss

Abstract

A gas transfer and depressurization system that is configured to transfer gas from a first location to a second location wherein during the transfer of gas the pressure of the first location is reduced. The gas transfer and depressurization system includes a drive chamber having an interior volume with a drive assembly movably disposed therein. A first cylinder and a second cylinder are operably coupled to the drive chamber on opposing sides thereof. The drive assembly includes a drive rod having portions extending into the first cylinder and second cylinder wherein the drive rod has pistons formed on opposing ends thereof. A controller is operably coupled to a compressed air source and is configured to provide compressed air into said drive chamber so as to reciprocally move the drive assembly. Gas blocks and coupling block are additionally present and facilitate flow of gas intermediate the first and second cylinders.

Claims

1. A gas transfer and depressurization system that is configured to transfer a gas from a first location to a second location wherein the pressure at the first location is at a pressure that is greater than that of atmospheric pressure and wherein gas is inhibited from propagating into the surrounding environment during transfer wherein the gas transfer and depressurization system comprises:

an air inlet, said air inlet being coupled to a compressed air source, said air inlet operable to facilitate introduction of compressed air into the gas transfer and depressurization system;

a gas inlet, said gas inlet being operably coupled to the first location, said gas inlet having tubing coupled thereto, said tubing configured to direct gas into the fluid transfer and depressurization system;

a gas discharge port, said gas discharge port being operably coupled to the second location facilitating the deposit of gas thereinto;

a drive chamber, said drive chamber having an interior volume, said drive chamber having a first end and a second end, said drive chamber having a first switch mounted proximate said first end, said drive chamber having a second switch proximate said second end of said drive chamber, said drive chamber having disposed therein a drive assembly, said drive assembly being movable within said interior volume of said drive chamber, said drive assembly having a first movement and a second movement, said first movement and said second movement of said drive assembly being reciprocal, said drive assembly having a drive member, said drive member sealably mounted within the interior volume of said drive chamber, said drive member having a first side and a second side, said drive assembly having a drive rod, said drive rod having a first portion and a second portion, said first portion of said drive rod extending outward from said first side of said drive member, said first portion of said drive rod having a piston integrally formed thereon distal to said drive member, said second portion of said drive rod extending outward from said second side of said drive rod, said second portion of said drive rod having a piston formed thereon distal to said drive member, wherein during the first movement said drive member traverses in a first direction and wherein during said second movement said drive member traverses in a second direction;

a first cylinder, said first cylinder operably coupled to said drive chamber adjacent said first end of said drive chamber, said first cylinder having a first end and a second end, said first cylinder having an interior volume, said first cylinder having the first portion of said drive rod extending thereinto, said piston of said first portion of said drive rod operably dividing the interior volume of said first cylinder so as to hermetically isolate gas on opposing sides thereof;

a second cylinder, said second cylinder being operably coupled to said drive chamber adjacent said second end of said drive chamber, said second cylinder having a first end and a second end, said second cylinder having an interior volume, said second cylinder being operably coupled to said gas discharge port, said second cylinder having the second portion of said drive rod extending thereinto, said piston formed on said second portion of said drive rod operably dividing the interior volume of said second cylinder so as to hermetically isolate gas on opposing sides thereof;

a controller, said controller being operably coupled to said air inlet, said controller configured to be operated by compressed air having a plurality of valves therein, said controller having a first exit tube and a second exit tube, said first exit tube operably coupled intermediate said controller and said drive chamber proximate said first end of said drive chamber, said second exit tube being operably coupled intermediate said controller and said second end of said drive chamber, said first exit tube and said second exit tube configured to provide alternating sources of compressed air into the interior volume of said drive chamber so as to reciprocally move said drive member between said first movement and said second movement, said controller further having a cooling tube, said cooling tube configured to provide air proximate said first cylinder and said second cylinder in order to reduce temperature thereof;

a first coupling block, said first coupling block being mounted intermediate said first cylinder and said drive chamber, said first coupling block having the first portion of said drive rod extending therethrough, said first coupling block having sealing members being operably coupled with said first portion of said drive rod, said first coupling block having an upper passage, said upper passage configured to facilitate flow of gas therethrough from said gas inlet to the interior volume of said at least one first cylinder, said first coupling block further having a lower passage, said lower passage configured to operably couple said first coupling block to a second coupling block;

said second coupling block being mounted intermediate said second cylinder and said drive chamber, said second coupling block having the second portion of said drive rod extending therethrough, said second coupling block having sealing members being operably coupled with said second portion of said drive rod, said second coupling block having an upper passage and a lower passage, said lower passage configured to facilitate flow of gas therethrough from said lower passage of said first gas block to the interior volume of said second cylinder;

at least one gas inlet manifold, said at least one gas inlet manifold being operably intermediate said gas inlet and said first cylinder;

at least one gas discharge manifold, said at least one gas discharge manifold being operably intermediate said second cylinder and said gas discharge port;

wherein gas is transferred from the first location to the second location during execution of the first movement and second movement of the drive assembly and wherein during the transfer of gas the pressure at the first location is reduced to a pressure that is at or less than atmospheric pressure.

2. The gas transfer and depressurization system as recited in claim 1, wherein said drive member traverses towards said second cylinder during said first movement, wherein during said first movement of said drive assembly, gas, intermediate said piston formed at said end of said first portion of said drive rod, is transferred through said lower passage of said first coupling block into said second cylinder wherein the gas is intermediate said drive chamber and the piston formed on the second end of said second portion of said drive rod.

3. The gas transfer and depressurization system as recited in claim 2, wherein during said first movement of said drive assembly, gas is introduced from said at least one gas inlet manifold into said first cylinder and is disposed intermediate said piston at said first end of said first portion of said drive rod and said first gas block.

4. The gas transfer and depressurization system as recited in claim 3, wherein during said first movement of said drive assembly, gas, intermediate said piston formed at said end of said first portion of said drive rod and said drive chamber, is transferred through said lower passage of said first coupling block into said second cylinder wherein the gas is intermediate said drive chamber and the piston formed on the second end of said second portion of said drive rod.

5. The gas transfer and depressurization system as recited in claim 4, wherein during the first movement, gas, disposed in the at least one second cylinder intermediate the piston formed on the second portion of the drive rod and the second gas block, egresses through said second passage of said second gas block and is transferred to said gas discharge port.

6. The gas transfer and depressurization system as recited in claim 5, wherein during the second movement of said drive assembly said drive member is traversing towards said first cylinder and wherein during said second movement of said drive assembly, gas flows through said upper passage of said second coupling block to said at least one gas discharge manifold and gas additionally travels through said second passage of said first gas block to said second passage of said second gas block and wherein gas travels from said at least one gas inlet manifold through said upper passage of said first coupling block into the interior volume of said first cylinder.