INTERCHANGEABLE DOSING ARM DEVICE, SYSTEM AND METHOD

• US 20180119884A1
• Filed: 10/19/2017
• Published: 05/03/2018
• Est. Priority Date: 10/19/2016
• Status: Active Grant

• Current Assignee: US Bank Trust Company National Association As Notes Collateral Agent
• Original Assignee: Chart Incorporated (Chart Industries Incorporated)
• Inventors: Gaddis, Nathan Daniell, Hight, JR., James Robert, Jones, Bryson Tyler, Ng, Peter Zhi
• Granted Patent: US 10,451,221 B2
• Time in Patent Office: Days
• CPC Class Codes: F17C 13/04 Arrangement or mounting of valves valves per se F16K ; snap-coupling of nipples F16L37/00
• CPC Class Codes: F17C 2201/032 with substantially vertical main axis
• CPC Class Codes: F17C 2203/0391 by vacuum
• CPC Class Codes: F17C 2205/0355 Insulation thereof
• CPC Class Codes: F17C 2205/037 Quick connecting means, e.g. couplings
• CPC Class Codes: F17C 2221/014 Nitrogen
• CPC Class Codes: F17C 2223/013 liquid
• CPC Class Codes: F17C 2223/0161 cryogenic, e.g. LNG, GNL, PLNG
• CPC Class Codes: F17C 2223/031 Not under pressure, i.e. containing liquids or solids only
• CPC Class Codes: F17C 2223/033 Small pressure, e.g. for liquefied gas
• CPC Class Codes: F17C 2223/046 in the liquid
• CPC Class Codes: F17C 2225/0161 cryogenic, e.g. LNG, GNL, PLNG
• CPC Class Codes: F17C 2225/033 Small pressure, e.g. for liquefied gas
• CPC Class Codes: F17C 2227/0121 by gravity
• CPC Class Codes: F17C 2250/0621 Volume
• CPC Class Codes: F17C 2265/06 Fluid distribution
• CPC Class Codes: F17C 2270/0509 "Dewar" vessels
• CPC Class Codes: F17C 2270/059 Mass bottling, e.g. merry belts
• CPC Class Codes: F17C 3/08 by vacuum spaces, e.g. Dewar flask for household use A47J41/02
• CPC Class Codes: F17C 7/02 Discharging liquefied gases
• CPC Class Codes: F17C 9/02 : with change of state, e.g. vaporisation

Abstract

A doser for dispensing a cryogenic fluid includes a doser body configured to receive the cryogenic fluid. The dosing arm has a proximal end and a distal end and a central passage extending between the proximal and distal ends. Furthermore, the dosing arm is configured to receive cryogenic fluid from the doser body. A bayonet connection removably connects the proximal end of the dosing arm to the doser body. A dosing head is mounted to the distal end of the dosing arm and is configured to receive cryogenic fluid from the central passage of the dosing arm and to dispense the cryogenic fluid.

Claims

1. A doser for dispensing a cryogenic fluid comprising:

a. a doser body configured to receive the cryogenic fluid;

b. a dosing arm having a proximal end and a distal end, said dosing arm having a central passage extending between the proximal and distal ends and configured to receive cryogenic fluid from the doser body;

c. a bayonet connection removably connecting the proximal end of the dosing arm to the doser body; and

d. a dosing head mounted to the distal end of the dosing arm and configured to receive cryogenic fluid from the central passage of the dosing arm and to dispense the cryogenic fluid.

2. The doser of claim 1 wherein the dosing arm is vacuum insulated and the dosing arm proximal end includes a female bayonet connector.

3. The doser of claim 2 further comprising an outlet fitting in fluid communication with the doser body, said outlet fitting provided with a male bayonet connector having an insertion stem removably positioned within the central passage of the dosing arm.

4. The doser of claim 3 wherein the female bayonet connector includes a female bayonet flange and the male bayonet connector includes a male bayonet flange that is removably attached to the female bayonet flange.

5. The doser of claim 4 wherein the male bayonet flange is removably attached to the female bayonet flange by a clamp.

6. The doser of claim 4 wherein the male bayonet flange is removably attached to the female bayonet flange by fasteners.

7. The doser of claim 4 further comprising a bushing sandwiched between the male bayonet flange and the female bayonet flange.

8. The doser of claim 1 wherein the doser body includes an doser body outer jacket and an inner tank positioned within the doser body outer jacket so that a doser body insulation space is defined therebetween, said space generally evacuated of air.

9. The doser of claim 8 further comprising an outlet fitting having an outlet fitting outer jacket and an outlet fitting inner pipe positioned within the outlet fitting outer jacket so that an annular space is defined therebetween, said annular space in fluid communication with the doser body insulation space so that the outlet fitting is vacuum insulated.

10. The doser of claim 1 wherein the cryogenic fluid is liquid nitrogen.

11. The doser of claim 1 further comprising at least one additional dosing head mounted to the distal end of the dosing arm and configured to receive cryogenic fluid from the central passage of the dosing arm and to dispense the cryogenic fluid.

12. A doser for dispensing a cryogenic fluid comprising:

a. a doser body including a reservoir configured to receive the cryogenic fluid;

b. an outlet fitting including;

i) an outlet fitting outer jacket;

ii) an outlet fitting inner pipe positioned within the outlet fitting outer jacket, said outlet inner pipe in fluid communication with the doser body reservoir;

iii) an outlet fitting sleeve connected to the outlet fitting outer jacket and inner pipe so that an annular pace is defined therebetween;

iv) an outlet fitting flange positioned on the outlet fitting sleeve;

v) a male bayonet insertion stem attached to the outlet fitting sleeve and in fluid communication with the outlet fitting inner pipe;

c. a dosing arm having a proximal end and a distal end, said dosing arm including;

i) a dosing arm outer jacket;

ii) a dosing arm inner pipe positioned within the dosing arm outer jacket and having a central passage;

iii) a dosing arm sleeve connected to the dosing arm outer jacket and inner pipe so that a sealed annular space is defined therebetween, said annular space generally evacuated of air;

iv) a dosing arm flange positioned on the dosing arm sleeve, said dosing arm flange removably attached to the outlet fitting flange;

d. said male bayonet insertion stem removably positioned within and in fluid communication with the central passage of the dosing arm inner pipe; and

e. a dosing head mounted to the distal end of the dosing arm and configured to receive cryogenic fluid from the central passage of the dosing arm inner pipe and to dispense the cryogenic fluid.

13. The doser of claim 12 wherein the doser body includes a doser body outer jacket and wherein the reservoir is an inner tank positioned with the doser body outer jacket with an annular space therebetween that is generally evacuated of air.

14. The doser of claim 12 further comprising a bellows having a first end in fluid communication with the central passage of the dosing arm inner pipe and a second end in fluid communication with the dosing head.

15. The doser of claim 12 wherein the dosing head includes a dosing valve.

16. The doser of claim 12 wherein the outlet fitting flange is removably attached to the dosing arm flange by a clamp.

17. The doser of claim 12 wherein the outlet fitting flange is removably attached to the dosing arm flange by fasteners.

18. The doser of claim 12 wherein the cryogenic fluid is liquid nitrogen.

19. The doser of claim 12 further comprising at least one additional dosing head mounted to the distal end of the dosing arm and configured to receive cryogenic fluid from the central passage of the dosing arm and to dispense the cryogenic fluid.

20. A dosing arm comprising:

a. a dosing arm outer jacket;

b. a dosing arm inner pipe positioned within the dosing arm outer jacket and having a central passage;

c. a dosing head positioned on a distal end of the dosing arm and configured to receive a cryogenic fluid from the central passage;

d. a dosing arm sleeve connected to the dosing arm outer jacket and inner pipe at a proximal end of the dosing arm so that a sealed annular space is defined therebetween, said annular space generally evacuated of air; and

e. a dosing arm flange positioned on the dosing arm sleeve.

21. The dosing arm of claim 20 further comprising at least one additional dosing head positioned on the distal end of the dosing arm and configured to receive cryogenic fluid from the central passage of the dosing arm.

22. A method of changing a dosing arm of a doser comprising the steps of:

a. disconnecting flanges of a male bayonet connector and a first female bayonet connector, where the male bayonet connector is attached to a doser body of the doser and the first female bayonet connector is attached to a first dosing arm;

b. removing an insertion stem of the male bayonet connector from a central passage of the first female bayonet connector;

c. inserting the insertion stem into a central passage of a second female bayonet connector of a second dosing arm;

d. connecting the flanges of the male bayonet connector and the second female bayonet connector.

23. A method of changing a dosing arm of a doser comprising the steps of:

a. disconnecting flanges of a first male bayonet connector and a female bayonet connector, where the first male bayonet connector is attached to a first dosing arm and the female bayonet connector is attached to the doser body of the closer;

b. removing an insertion stem of the first male bayonet connector from a central passage of the female bayonet connector;

c. inserting an insertion stem of a second dosing arm into the central passage of the female bayonet connector; and

d. connecting the flanges of the second male bayonet connector and the female bayonet connector.