Delivery tank with decompression, saturation, and desaturation characteristics

Abstract

To provide a cryogenic liquid delivery tank which inhibits pressure rise in the cryogenic liquid delivery tank with a simple structure.SOLUTION: A cryogenic delivery tank 100 includes: a vessel having an inner shell 300 and an outer shell 200; and an interior that may contain a cryogenic liquid 101 with a headspace above. A transfer pipe passes through the interior of the vessel and includes a head space coil 111 positioned within an upper portion of the interior and a liquid side coil 112 positioned in a lower portion of the interior. The transfer pipe has a first port 601 adjacent to the head space coil and a second port 602 adjacent to the liquid side coil. The first port and the second port of the transfer pipe are configured to be removably attached to a second tank.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001]

[0001] (Claim of Priority) This application claims the benefit of U.S. Provisional Patent Application No. 62 / 983,901, filed March 2, 2020, the contents of which are hereby incorporated by reference.

[0002]

[0002] This disclosure relates generally to cryogenic tanks for injecting or extracting cryogenic fuels into or from on-board vehicle tanks or other use devices, and more specifically to cryogenic delivery tanks for injecting or extracting liquefied natural gas. [Background technology]

[0003]

[0003] Natural gas is a useful alternative fuel source for powering vehicle engines. It is typically stored and transported as liquefied natural gas (LNG), because it occupies a much smaller volume (approximately 600 times smaller than its gaseous state). Regulation of the temperature and pressure of LNG is crucial. Due to its low temperature (~-160°C) requirement, LNG is stored in insulated cryogenic tanks and is typically stored at low pressure. Furthermore, stored cryogenic liquids are typically saturated so that both the gas and liquid states exist simultaneously at the desired temperature and pressure.

[0004]

[0004] Vehicles that utilize natural gas typically include on-board vehicle tanks, which may have unique pressure and temperature requirements. During the filling and unfilling of on-board vehicle tanks with liquefied natural gas, a reduction in pressure or an increase in the saturation pressure of the liquefied natural gas is typically required to cool the vapor space of the liquefied natural gas delivery tank. Thus, refueling these vehicle tanks can be a complicated process.

[0005]

[0005] A prior art system for controlling the conditions of a cryogenic delivery tank utilizes two additional tanks, a cryogenic tank 50 having a cryogenic liquid 51 and a vapor 52, and a high-pressure cylinder 40 containing a cryogenic vapor, as shown in FIG. 1. The cryogenic liquid 51 may comprise liquid nitrogen. The vapor in the cylinder 40 may comprise natural gas. The delivery tank, generally designated 10, includes an inner shell 30 and an outer shell 20. The delivery tank 10 contains a cryogenic liquid 11 and a vapor 12. The cryogenic tank 50 is permanently connected to a first coil 70 by a delivery line 52 located in the vapor or head space of the delivery tank 10. The delivery line 52 includes a valve, generally designated 53, or other known method for regulating the liquid input from the tank 50. The high-pressure cylinder 40 is permanently connected to a second coil 80 via a delivery line 42 soldered to the inside surface of the outer shell of the delivery pump 10. The second delivery line 42 includes a valve, generally designated 43 , or other known method for regulating the gas input from the tank 40 .

[0006] 1 is achieved by introducing liquefied nitrogen 51 from tank 50 through coiled tubing 70 within the delivery tank. This condenses a portion of the vapor 12, reducing the pressure within the tank. The liquefied nitrogen converts to cryogenic nitrogen gas and exits the top of the delivery tank through the second end of coiled tubing 70 and is discharged through vent 71.

[0007] Saturation is achieved by introducing natural gas from tank 40 into the delivery tank through a second coil 80. Natural gas from tank 40 passes through coil 80 and is warmed by heat transfer from the atmosphere through outer shell 20 and coil 80. The warmed natural gas is sent to the bottom of delivery tank 10 and warms the liquid as it bubbles through it. In this current system, desaturation is only possible by depressurizing the entire delivery tank, either by venting methane vapor 12 to the atmosphere or by combusting the methane vapor.

[0008] The above-described system utilizes two additional tanks and line connections between each of the additional tanks and the delivery tank. The processes for depressurization, increasing saturation, and decreasing saturation are complex. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] U.S. Provisional Patent Application No. 62 / 983901 Summary of the Invention [Problem to be solved by the invention]

[0010] It would be desirable to provide a portable cryogenic liquid delivery tank to provide a simple and convenient solution for the storage of liquefied natural gas and the associated refueling and de-fueling of liquefied natural gas vehicle tanks. [Means for solving the problem]

[0011]

[0010] Several aspects of the present subject matter can be embodied separately or collectively in the methods, devices, and systems described and claimed below. These aspects may be employed alone or in combination with other aspects of the subject matter described herein, and describing these aspects as a group does not intend to exclude the use of these aspects separately or to exclude the claiming of such aspects separately or in different combinations as set forth in the accompanying claims.

[0012] In one aspect, a cryogenic liquid delivery tank includes a container having an inner shell and an outer shell. The container inner shell defines an interior configured to contain a cryogenic liquid with a headspace above the cryogenic liquid. The delivery tank has a transfer tube passing through the interior of the container, the transfer tube including a headspace coil positioned within an upper portion of the interior of the container and a liquid-side coil positioned in a lower portion of the interior of the container. The transfer tube has a first port adjacent to the headspace coil and a second port adjacent to the liquid-side coil. The first and second ports of the transfer tube are configured to be removably attached to a second tank.

[0013] In another aspect, a cryogenic delivery tank system includes a first cryogenic liquid delivery tank including a container having an inner shell and an outer shell. The container's inner shell defines an interior configured to contain a cryogenic liquid with a headspace above the cryogenic liquid. The delivery tank has a transfer tube passing through the container's interior, the transfer tube including a headspace coil positioned within an upper portion of the container's interior and a liquid-side coil positioned in a lower portion of the container's interior. The transfer tube has a first port adjacent to the headspace coil and a second port adjacent to the liquid-side coil. The cryogenic liquid delivery tank further includes a second cryogenic tank. The second cryogenic tank has a second tank interior configured to hold a second cryogenic liquid with a second headspace above the second cryogenic liquid. The second cryogenic tank has a gas outlet tube and a liquid outlet tube. The gas outlet tube is in fluid communication with a top portion of the second tank interior and is configured for removable connection to the second port. The liquid outlet tube is in fluid communication with the lowermost portion of the interior of the second tank and is configured to removably connect to the first port and / or the second port of the transfer tube.

[0014] In a further aspect, a method for regulating the pressure of a first cryogenic liquid stored in a delivery tank includes providing a transfer line within the vessel. The transfer line includes a headspace coil positioned within an upper portion of the interior and a liquid-side coil positioned within a lower portion of the interior. A second cryogenic liquid is directed from the second tank first through the headspace coil and then through the liquid-side coil, or from the second tank first through the liquid-side coil and then through the headspace coil. Alternatively, gas is directed from the second tank through the liquid-side coil and then through the headspace coil, resulting in the generation of waste gas. The waste gas is then degassed.

[0015] In another aspect, a cryogenic liquid delivery tank system includes a first cryogenic liquid delivery tank including a container having an inner shell and an outer shell. The container's inner shell defines an interior configured to contain a cryogenic liquid with a headspace above the cryogenic liquid. The delivery tank has a transfer tube passing through the container's interior, the transfer tube including a headspace coil positioned within an upper portion of the container's interior and a liquid-side coil positioned in a lower portion of the container's interior. The transfer tube has a first port adjacent to the headspace coil and a second port adjacent to the liquid-side coil. The cryogenic liquid delivery tank further includes a second tank. The second tank has a second tank interior configured to hold a gas. The second tank has a gas outlet tube. The gas outlet tube is in fluid communication with the second tank interior and configured for removably connection to the second port. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a schematic diagram of a conventional cryogenic liquid delivery tank system. [Figure 2] FIG. 1 is a schematic diagram of one embodiment of a delivery tank of the current disclosure. [Figure 3]

[0017] FIG. 1 is a schematic diagram of one embodiment of a delivery tank system of the current disclosure. [Figure 4]

[0018] FIG. 1 is a schematic diagram of the pressure reduction operation of the current disclosure. [Figure 5]

[0019] FIG. 1 is a schematic diagram of the saturation operation of the present disclosure. [Figure 6]

[0020] FIG. 1 is a schematic diagram of the desaturation operation of the current disclosure. [Figure 7]

[0021] FIG. 1 is a schematic diagram of another embodiment of a delivery tank of the current disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0017]

[0022] Certain disclosed embodiments provide a delivery tank with a dual coil transfer pipe, eliminating the need for separate first and second coil transfer pipe structures. Certain disclosed embodiments also eliminate the need for a second tank with natural gas to regulate pressure and saturation.

[0018]

[0023] 2 illustrates a cryogenic delivery tank 100 of the present disclosure. Cryogenic tank 100 is employed to store a cryogenic liquid. For example, the cryogenic liquid may be at least one of nitrogen, helium, neon, argon, krypton, carbon dioxide, hydrogen, liquefied natural gas, and oxygen, although other types of gases are within the scope of this disclosure. In a preferred embodiment, cryogenic delivery tank 100 is used to store and deliver liquefied natural gas.

[0019]

[0024] In the illustrated embodiment, delivery tank 100 has an inner shell 300 and an outer shell 200, the inner shell defining the interior of the tank. Stored within the interior of inner shell 300 is a cryogenic liquid 101. Cryogenic liquid 101 occupies a certain volume of delivery tank 100, with the remaining volume being occupied by cryogenic gas or vapor 102. A liquid level 103 is included for illustrative purposes, although the liquid level may vary, particularly during each event (LNG delivery, LNG intake).

[0020]

[0025] The delivery tank 100 includes a dual coil transfer tube 110 mounted within the inner shell 300 of the delivery tank. The dual coil transfer tube 110 may be mounted in any manner known in the art. As shown in FIG. 2 , in the illustrated embodiment, the transfer tube 110 includes two coiled sections forming a headspace coil 111 and a liquid side coil 112. In different embodiments, the transfer tube 110 may include more or less than two coiled sections. The coiled sections 111 and 112 are located within the interior of the cryogenic delivery tank. The coiled sections 111 and 112 may utilize any coil configuration known in the art. The coiled sections 111 and 112 may be mounted in different portions of the inner shell 300 of the delivery tank 100. As illustrated in FIG. 2, coiled section 112 is at the top of the vessel and is at least partially within the cryogenic gas 102 section, while coiled section 111 is at the bottom of the vessel and is at least partially within the cryogenic liquid 101 section.

[0021]

[0026] The dual coil transfer tube 110 has a first tube port 601 and a second tube port 602 at the other end. The first tube port 601 and the second tube port 602 can be located along different sides of the delivery tank 100. In a preferred embodiment, the first tube port 601 is located at the top of the delivery tank, and the second tube port 602 is located on one side of the delivery tank. Both tube ports can be external to the delivery tank 100. Both tube ports can also be flush with the edge of the container or partially within the container. Both tube ports depicted in FIG. 2 are accessible external to the delivery tank 100 container. Although specific details are not shown in the figures, both tube ports (601 and 602) can feature a number of specific fittings. For example, each can have a removable, reusable seal. Additionally, each outlet can include a valve or vent. The cross-sections of the tubes and other structures can have a variety of shapes, such as circular, oval, square, triangular, pentagonal, hexagonal, polygonal, or other shapes.

[0022]

[0027] Coiled sections 111 and 112 may be closely adjacent to or adjacent to first ductal port 601 and second ductal port 602, respectively. In the illustrated embodiment, first coiled section 111 is adjacent to first ductal port 601 and coiled section 112 is adjacent to second ductal port 602.

[0023]

[0028] In the illustrated embodiment, the cryogenic delivery tank 100 is a vertical tank. In other embodiments, the tank 100 may be a horizontal tank.

[0024]

[0029] The cryogenic delivery tank 100 of the present invention is shown as being double-walled, but may also be single-walled or triple-walled. The cryogenic tank may be made from copper alloys, nickel alloys, carbon, stainless steel, or any other material known in the art.

[0025]

[0030] The cryogenic delivery tank 100 may have insulation between its inner and outer walls (inner shell) and / or may be vacuum insulated. Single or multiple layers of insulation of any known material for insulation may be utilized.

[0026]

[0031] The inner container 300 may be joined to the outer container 200 by one or more inner container support members. For example, the inner container support members may connect the neck and base of the inner container to the outer container, as known in the art.

[0027]

[0032] The cryogenic tank 100 may include devices or gauges for reading different characteristics of the tank. These devices or gauges may indicate pressure, temperature, differential pressure, liquid level, etc.

[0028]

[0033] In the embodiment of FIG. 2 or any other embodiment of the current disclosure, the delivery tank 100 includes at least one line for filling with liquefied natural gas or withdrawing liquefied natural gas from the tank. In one embodiment, a separate fill line and a separate return line are provided. Similarly, other paths may exit the inner vessel for filling or withdrawing liquid. The fill line and return line may be any suitable conduit for carrying or allowing the flow of fluid therethrough.

[0029]

[0034] FIG. 3 illustrates one embodiment of a cryogenic delivery tank system of the present disclosure. In the illustrated embodiment, a second tank is presented for connection to the cryogenic delivery tank 100. In one embodiment, the second tank is a cryogenic tank. The cryogenic tank 500 has a gas outlet tube 520 and a liquid outlet tube 510, which includes a dip tube above the liquid outlet tube. Although shown separately, both outlets may alternatively be combined into a single head from the tank 500. The outlet tubes 520 and 510 may be connected to a first tube port 601 and a second tube port 602 of the dual-coil transfer tube 110 of the delivery tank 100. The tube outlets of the cryogenic tank 500 may be connected to either tube port of the dual-coil transfer tube 110 by flexible hoses. While flexible hoses are the preferred connection means, the tubes of each tank may be connected by any other known connection means, including, but not limited to, insulated piping. The connecting means may be permanent or temporary and may consist of any piping, tubing, hose, or suitable conduit. Additionally, the tubing outlet of cryogenic tank 500 may be selectively connected to ports 601 and 602 by lines containing one or more valves 511 and 521 that direct fluid from tank 500 to either port 601 or 602 of tank 100 according to the configurations described below.

[0030]

[0035] The second cryogenic tank 500 has an inner shell 600 and an outer shell 700. A cryogenic liquid 501 is stored within the inner shell 600. The cryogenic liquid occupies a certain volume of the cryogenic tank 500, with the remaining volume being occupied by a cryogenic gas or vapor 502. The liquid level is included in the figure for illustrative purposes, but the liquid may change, particularly during each event (such as delivery of the cryogenic liquid or gas).

[0031]

[0036] In the depicted embodiment, the second cryogenic tank 500 is a vertical storage tank. In other embodiments, the storage tank 500 may be a horizontal storage tank.

[0032]

[0037] The cryogenic delivery tank 500 of the current invention is shown as being double-walled, but may also be single-walled or triple-walled. The cryogenic tank may be made from copper alloys, nickel alloys, carbon, stainless steel, or any other material known in the art.

[0033]

[0038] Cryogenic tank 500 may also include devices or gauges for reading different characteristics of the tank. These devices or gauges may indicate pressure, temperature, differential pressure, liquid level, etc.

[0034]

[0039] In another embodiment, the second tank may be a gas tank. It may be a high-pressure gas tank. The high-pressure gas may be nitrogen. In this embodiment, the second tank is filled with gas and does not contain a liquid. The second tank has a gas outlet tube. The gas outlet tube may be connected to the first tube port 601 and the second tube port 602 of the dual coil transfer tube 110 of the delivery tank 100. The tube outlet of the gas tank may be connected to either tube port of the dual coil transfer tube 110 by a flexible hose. Although a flexible hose is the preferred connection means, the tubes of each tank may be connected by any other known connection means, including, but not limited to, insulated piping. The connection means may be permanent or temporary and may consist of any piping, tubing, hose, or suitable conduit. Additionally, the tube outlet of the gas tank can be selectively connected to ports 601 and 602 by a line containing one or more valves that direct gas from the tank to either port 601 or 602 of tank 100 according to the configuration described below.

[0035]

[0040] FIG. 4 illustrates a depressurization configuration, generally designated 801, of the cryogenic delivery tank system of the present disclosure. When tank pressure needs to be reduced in delivery tank 100, an operator connects liquid outlet 510 of cryogenic tank 500 to delivery tank 100 at first line port 601 of dual coil transfer tubing 110. As indicated by the arrows in FIG. 4, cryogenic liquid from tank 500 passes through transfer tubing 110 in delivery tank 100 from first line port 601 to second line port 602. While in coiled section 111, the cryogenic liquid from tank 500 will cause condensation of gas 102, lowering the pressure within the delivery tank. As it continues down transfer tubing 100, the liquid changes state to gas and exits line port 602 as a gas.

[0036]

[0041] Figure 5 illustrates the saturation configuration of the cryogenic delivery tank system of the present disclosure, generally designated 802. When the saturation pressure of the cryogenic liquid 101 needs to be increased, an operator connects the gas outlet tube 520 of the cryogenic tank 500 to the tube port 602 of the dual coil transfer tube 110 of the delivery tank 100. As indicated by the arrows in Figure 5, warm gas 502 passes through the dual coil transfer tube 110 from the second tube port 602 to the first tube port 601 and escapes as cooler gas. The warm gas warms the cryogenic liquid 101 while within the coiled section 112, increasing the temperature and therefore the saturation pressure of the cryogenic liquid.

[0037]

[0042] Saturation can also be achieved if the second tank is a gas tank. When the saturation pressure of the cryogenic liquid 101 needs to be increased, the operator connects the gas outlet tube 520 of the gas tank to the tube port 602 of the dual coil transfer tube 110 of the delivery tank 100. Warm gas passes through the dual coil transfer tube 110 from the second tube port 602 to the first tube port 601 and escapes as cooler gas. The warm gas warms the cryogenic liquid 101 while in the coiled section 112, increasing the temperature and therefore the saturation pressure of the cryogenic liquid.

[0038]

[0043] Figure 6 illustrates the desaturation configuration, generally designated 803, of the disclosed cryogenic delivery tank system. When the saturation pressure of the cryogenic liquid needs to be reduced, the liquid outlet tube 510 of the cryogenic tank 500 is connected to the second tube port 602 of the dual coil transfer tube 110 of the cryogenic delivery tank 10. As shown by the arrows in Figure 6, cold cryogenic liquid 501 is forced through the dual coil transfer tube 110 from the second tube port 602 to the first tube port 601. The cold liquid 501 cools the cryogenic liquid 101 and exits the first tube port 601 as a cold gas. The saturation pressure of the cryogenic liquid is reduced.

[0039]

[0044] 7 depicts an additional embodiment of a cryogenic delivery tank 104 of the present disclosure. The cryogenic tank 104 is employed to store a cryogenic liquid. For example, the cryogenic liquid may be at least one of nitrogen, helium, neon, argon, krypton, carbon dioxide, hydrogen, liquefied natural gas, and oxygen, although other types of gases are within the scope of this disclosure. In a preferred embodiment, the cryogenic delivery tank 100 is used to store and deliver liquefied natural gas.

[0040]

[0045] In the illustrated embodiment, the delivery tank 104 has an inner shell 300 and an outer shell 200, the inner shell defining the interior of the tank. Stored within the interior of the inner shell 300 is a cryogenic liquid 101. The cryogenic liquid 101 occupies a certain volume of the delivery tank 104, with the remaining volume being occupied by a cryogenic gas or vapor 102. A liquid level 103 is included for illustrative purposes, although the liquid level may vary, particularly during each event (LNG delivery, LNG intake).

[0041]

[0046] The delivery tank 104 has two transfer tubes 113 and 114 installed within the inner shell 300 of the delivery tank. The transfer tubes 113 and 114 may be installed in any manner known in the art. As shown in FIG. 7, in the illustrated embodiment, the first transfer tube 113 includes a coiled section 111 forming a headspace coil. The second transfer tube 114 includes a coiled section 112. The coiled sections 111 and 112 are within the interior of the cryogenic delivery tank. The coiled sections 111 and 112 may utilize any coil configuration known in the art. As illustrated in FIG. 7, the coiled section 112 is at the top of the vessel and is at least partially within the cryogenic gas 102 section, while the coiled section 111 is at the bottom of the vessel and is at least partially within the cryogenic liquid 101 section.

[0042]

[0047] The transfer tube 113 has a first tube port 604 and a second tube port 607 at its other end. The transfer tube 114 has a first tube port 605 and a second tube port 606 at its other end. The tube ports 604, 605, 606, and 607 can be located along different sides of the delivery tank 104. In a preferred embodiment, the first tube ports 604 and 605 are located at the top of the delivery tank, and the second tube ports 606 and 607 are located on one side of the delivery tank. The tube ports can be external to the delivery tank 104. The tube ports can also be flush with the edge of the container or partially within the container. As depicted in FIG. 7, the tube ports are accessible external to the delivery tank 104 container. While specific details are not shown in the figures, the tube ports (604, 605, 606, and 607) can feature a number of specific fittings. For example, they can each have a removable, reusable seal. Additionally, each port may include a valve or vent. The cross-sections of the tubes and other structures may have a variety of shapes, such as circular, oval, square, triangular, pentagonal, hexagonal, polygonal, or other shapes.

[0043]

[0048] Each of the coiled sections 111 and 112 may be closely adjacent to or adjacent to a duct port 604, 605, 606, and 607. In the illustrated embodiment, the first coiled section 111 is adjacent to the first duct ports 604 and 605, and the coiled section 112 is adjacent to the second duct ports 606 and 607.

[0044]

[0049] In the illustrated embodiment, the cryogenic delivery tank 104 is a vertical tank. In other embodiments, the tank 104 may be a horizontal tank.

[0045]

[0050] The cryogenic delivery tank 104 of the current invention is shown as being double-walled, but may also be single-walled or triple-walled. The cryogenic tank may be made from copper alloys, nickel alloys, carbon, stainless steel, or any other material known in the art.

[0046]

[0051] The cryogenic delivery tank 104 may have insulation between its inner and outer walls (inner shell) and / or may be vacuum insulated. Single or multiple layers of insulation of any known material for insulation may be utilized.

[0047]

[0052] The inner container 300 may be joined to the outer container 200 by one or more inner container support members. For example, the inner container support members may connect the neck and base of the inner container to the outer container, as known in the art.

[0048]

[0053] The cryogenic tank 104 may include devices or gauges for reading different characteristics of the tank. These devices or gauges may indicate pressure, temperature, differential pressure, liquid level, etc.

[0049]

[0054] In the embodiment of FIG. 7 or other embodiments of the present disclosure, the delivery tank 104 includes at least one line for filling with liquefied natural gas or withdrawing liquefied natural gas from the tank. In one embodiment, a separate fill line and a separate return line are provided. Similarly, other paths may lead out of the inner vessel for filling or withdrawing liquid. The fill line and return line may be any suitable conduit for carrying or allowing the flow of fluid therethrough.

[0050]

[0055] While preferred embodiments of the disclosure have been shown and described, it will be apparent to those skilled in the art that changes and modifications may be made therein without departing from the spirit of the disclosure, the scope of which is defined by the appended claims. [Item 1] a container comprising an inner shell and an outer shell, the inner shell defining an interior configured to contain a cryogenic liquid with a headspace above the cryogenic liquid; a transfer tube passing through the interior of the vessel, the transfer tube including a headspace coil positioned within an upper portion of the interior and a liquid side coil positioned in a lower portion of the interior; a transfer tube having a first port adjacent to the head space coil and a second port adjacent to the liquid side coil; 1. A cryogenic liquid delivery tank comprising: The first port and the second port of the transfer tube are configured to be removably attached to a second tank. [Item 2] Item 1. The delivery tank of item 1, wherein the first port is located on or extends from a top portion of the outer shell, and the second port is located on or extends from a side of the outer shell. [Item 3] 3. The delivery tank of claim 2, wherein the second port is located at or extends from a lowermost portion of the side of the outer shell. [Item 4] 2. The cryogenic liquid delivery tank of claim 1, wherein the cryogenic liquid is liquefied natural gas. [Item 5] 2. The cryogenic liquid delivery tank of claim 1, wherein a single coil includes the headspace coil and the liquid side coil. [Item 6] 2. The cryogenic liquid delivery tank of claim 1, wherein the headspace coil is separate and spaced apart from the liquid side coil but is in fluid communication with the liquid side coil. [Item 7] a vessel comprising an inner shell and an outer shell, the inner shell defining an interior configured to contain a first cryogenic liquid with a first cryogenic liquid headspace above the first cryogenic liquid; a transfer tube passing through the interior of the vessel, the transfer tube including a headspace coil positioned within an upper portion of the interior and a liquid side coil positioned in a lower portion of the interior; a transfer tube having a first port adjacent to the head space coil and a second port adjacent to the liquid side coil; a second cryogenic tank, a second tank interior configured to hold a second cryogenic liquid with a second headspace above the second cryogenic liquid; a gas outlet tube in fluid communication with an uppermost portion of the second tank interior and configured to removably connect to the second port; and a second cryogenic tank including a liquid outlet tube in fluid communication with a lowermost portion of the second tank interior and configured to removably connect to the first port and / or the second port; Cryogenic liquid delivery tank system comprising: [Item 8] 8. The cryogenic liquid delivery system of claim 7, wherein the second cryogenic liquid is the same as the first cryogenic liquid. [Item 9] 8. The cryogenic liquid delivery system of claim 7, wherein the second cryogenic liquid is different from the first cryogenic liquid. [Item 10] 8. The cryogenic liquid delivery tank system of item 7, wherein the first cryogenic liquid is liquefied natural gas. [Item 11] 8. The cryogenic liquid delivery tank system of item 7, wherein the second cryogenic liquid is liquid nitrogen and the second gas is nitrogen. [Item 12] 8. The cryogenic liquid delivery tank system of claim 7, further comprising one or more flexible hoses configured to removably connect the gas outlet tube to the second port and the liquid outlet tube to the first port and / or the second port. [Item 13] 8. The cryogenic liquid delivery tank system of claim 7, further comprising a plurality of lines including one or more valves configured to selectively connect the gas outlet tube to the second port and the liquid outlet tube to the first port and / or the second port. [Item 14] 1. A method of regulating the pressure of a first cryogenic liquid stored in a delivery tank, comprising: providing a transfer tube within the interior of the vessel, the transfer tube including a head space coil positioned within an upper portion of the interior and a liquid side coil positioned in a lower portion of the interior; directing a second cryogenic liquid from a second tank first through the head space coil and then through the liquid side coil, or directing a cryogenic liquid from the second tank first through the liquid side coil and then through the head space coil, or directing a gas from the second tank first through the liquid side coil and then through the head space coil, resulting in the generation of exhaust gas; degassing the exhaust gas; A method of providing [Item 15] Item 15. The method of item 14, wherein the first cryogenic liquid is different from the second cryogenic liquid. [Item 16] Item 15. The method of item 14, wherein the first cryogenic liquid is the same as the second cryogenic liquid. [Item 17] Item 15. The method of item 14, wherein the pressure of the first cryogenic liquid is reduced. [Item 18] Item 15. The method of item 14, wherein the saturation pressure of the first cryogenic liquid is increased. [Item 19] Item 15. The method of item 14, wherein the saturation pressure of the second cryogenic liquid is reduced. [Item 20] a vessel comprising an inner shell and an outer shell, the inner shell defining an interior configured to contain a first cryogenic liquid with a first cryogenic liquid headspace above the first cryogenic liquid; a transfer tube passing through the interior of the vessel, the transfer tube including a headspace coil positioned within an upper portion of the interior and a liquid side coil positioned in a lower portion of the interior; a transfer tube having a first port adjacent to the head space coil and a second port adjacent to the liquid side coil; a second tank, a second tank interior configured to hold a gas; a second tank including a gas outlet tube in fluid communication with the interior of the second tank and configured to removably connect to the second port; 1. A cryogenic liquid delivery tank system comprising:

[0051] 100 cryogenic delivery tanks 101 Cryogenic Liquid 102 Cryogenic gases or vapors 103 Liquid level 104 Cryogenic Delivery Tank 110 Dual coil transfer tube 111 Headspace Coil 112 Liquid side coil 113 First Transfer Pipe 114 Second Transfer Pipe 200 outer shell 300 inner shell 500 cryogenic tanks 501 Cryogenic Liquid 502 Gas or steam 510 Liquid outlet pipe 511 Valve 520 Gas outlet pipe 521 Valve 600 inner shell 601, 604, 605 First pipe port 602, 606, 607 Second pipe port 700 outer shell 801 Pressure Reducing Configuration 802 Saturation configuration 803 Desaturation Configuration

Claims

1. a vessel comprising an inner shell and an outer shell, the inner shell defining an interior configured to contain a first cryogenic liquid with a first cryogenic liquid headspace above the first cryogenic liquid; a transfer tube passing through the interior of the vessel, the transfer tube including a headspace coil positioned within an upper portion of the interior and a liquid side coil positioned in a lower portion of the interior; a transfer tube having a first port adjacent to the head space coil and a second port adjacent to the liquid side coil; a second cryogenic tank, a second tank interior configured to hold a second cryogenic liquid with a second headspace above the second cryogenic liquid; a gas outlet tube in fluid communication with an uppermost portion of the second tank interior and configured to removably connect to the second port; and a second cryogenic tank including a liquid outlet tube in fluid communication with a lowermost portion of the second tank interior and configured to removably connect to the first port and / or the second port; It is equipped with A cryogenic liquid delivery tank system, wherein a single coil includes the headspace coil and the liquid side coil.

2. 10. The cryogenic liquid delivery system of claim 1, wherein the second cryogenic liquid is the same as the first cryogenic liquid.

3. The cryogenic liquid delivery system of claim 1 , wherein the second cryogenic liquid is different from the first cryogenic liquid.

4. 10. The cryogenic liquid delivery tank system of claim 1, wherein the first cryogenic liquid is liquefied natural gas.

5. 10. The cryogenic liquid delivery tank system of claim 1, wherein the second cryogenic liquid is liquid nitrogen and the second gas is nitrogen.

6. 10. The cryogenic liquid delivery tank system of claim 1, further comprising one or more flexible hoses configured to removably connect the gas outlet tube to the second port and the liquid outlet tube to the first port and / or the second port.

7. 10. The cryogenic liquid delivery tank system of claim 1, further comprising a plurality of lines including one or more valves configured to selectively connect the gas outlet line to the second port and the liquid outlet line to the first port and / or the second port.

8. a vessel comprising an inner shell and an outer shell, the inner shell defining an interior configured to contain a first cryogenic liquid with a first cryogenic liquid headspace above the first cryogenic liquid; a transfer tube passing through the interior of the vessel, the transfer tube including a headspace coil positioned within an upper portion of the interior and a liquid side coil positioned in a lower portion of the interior; a transfer tube having a first port adjacent to the head space coil and a second port adjacent to the liquid side coil; a second tank, a second tank interior configured to hold a gas; a second tank including a gas outlet tube in fluid communication with the interior of the second tank and configured to removably connect to the second port; It is equipped with A cryogenic liquid delivery tank system, wherein a single coil includes the headspace coil and the liquid side coil.

9. 10. The cryogenic liquid delivery tank system of claim 1, a cryogenic liquid delivery tank configured such that when one of the first port and the second port is connected to the second cryogenic tank, fluid passes from one of the first port and the second port to the other.

10. 9. The cryogenic liquid delivery tank system of claim 8, comprising: A cryogenic liquid delivery tank system wherein the gas passes from the second port to the first port when the second port is connected to the second tank.

Images