Low-temperature fluid delivery system and air conditioning apparatus using the same

Abstract

A cryogenic fluid delivery system for use with a cryogenic fluid tank and a tank connector device for connecting the cryogenic fluid tank to the cryogenic fluid delivery system. The cryogenic fluid delivery system has a tank engagement member configured to attach to the cryogenic fluid tank, at least one dispensing member configured to dispense cryogenic fluid, and a vaporizer module including a boiling chamber configured to receive liquid cryogenic fluid and allow the liquid cryogenic fluid positioned in the boiling chamber to boil into gaseous cryogenic fluid and facilitate delivery of the gaseous cryogenic fluid in an unpressurized manner toward the at least one dispensing member.

Description

Technical Field

[0001] The currently disclosed subject matter pertains to the field of air conditioning equipment, specifically to air conditioning equipment that utilizes the release of cryogenic fluids into its surrounding environment. Background Technology

[0002] Examples of such carriers related to the currently disclosed subject matter are disclosed in: US5960635 discloses an air conditioning device using liquid nitrogen, comprising: a liquid nitrogen source located in a pressure vessel; a release valve for releasing liquid nitrogen from the pressure vessel into a housing to absorb latent heat and become nitrogen gas. The device further includes: a thermostat for controlling the release valve; and a dehumidification arrangement that blows warmer air from outside the housing to mix with the nitrogen gas inside the housing to form a cooler air mixture. The dehumidification arrangement further dehumidifies the cooler air mixture before directing it to the atmosphere outside the housing; and • KR101666183 discloses a cooling device for discharging oxygen, the cooling device having: a cooling air discharge unit formed at the upper end of a body, wherein a lower cover is detachably attached to the lower end of the body; and a control unit for controlling the amount of oxygen discharged from a filling container, wherein the oxygen discharged from at least one liquefied oxygen (LOX) filling container is discharged through a blower and at least one discharge pipe for guiding the discharge pipe discharge. Summary of the Invention

[0003] According to a first aspect of the currently disclosed subject matter, a cryogenic fluid delivery system for use with a cryogenic fluid tank is provided, comprising: a. A tank engagement member configured to be fixedly attached to the cryogenic fluid tank and selectively allow cryogenic fluid to flow out of the tank and into the system. b. A distribution member configured to distribute cryogenic fluid to the outside of the system; and c. A vaporizer module fluidly connected to the tank engagement member and the dispensing section, and including a boiling chamber having a liquid receiving section and a gas releasing section, the liquid receiving section being configured to receive a liquid cryogenic fluid, the gas releasing section allowing the liquid cryogenic fluid positioned therein to boil into a gaseous cryogenic fluid, and facilitating the delivery of the gaseous cryogenic fluid toward the dispensing member in a non-pressurized manner.

[0004] The first aspect may include at least the implementation schemes listed below.

[0005] 1. A cryogenic fluid delivery system for use with a cryogenic fluid tank, comprising: a. A tank engagement member configured to be fixedly attached to the cryogenic fluid tank and selectively allow cryogenic fluid to flow out of the tank and into the system. b. A distribution member configured to distribute cryogenic fluid to the outside of the system and held at least during operation of the system in an elevated position relative to the tank connection member; and c. A vaporizer module fluidly connected to the tank engagement member and the dispensing section, and including a boiling chamber having a liquid receiving section and a gas releasing section, the liquid receiving section being configured to receive a liquid cryogenic fluid, the gas releasing section allowing the liquid cryogenic fluid positioned therein to boil into a gaseous cryogenic fluid, and facilitating the delivery of the gaseous cryogenic fluid toward the dispensing member in a non-pressurized manner.

[0006] 2. The cryogenic fluid transport system according to embodiment 1, wherein the boiling chamber comprises: a. A liquid receiving container, which constitutes the liquid receiving section, the liquid receiving container including a cryogenic liquid inlet and a liquid outlet in fluid communication with the tank connection member; b. A gas distribution container constituting the gas release portion, the gas distribution container including a fluid inlet in fluid communication with the liquid outlet of the liquid receiving container and a gas outlet in fluid communication with the distribution member; and c. A flow-blocking member configured to selectively prevent liquid communication between the liquid receiving container and the gas dispensing container when a predetermined amount of liquid is found in / located within the gas dispensing tank.

[0007] 3. The cryogenic fluid delivery system according to embodiment 2, wherein the flow blocking member includes a float member located within the gas distribution container and a plug member located within the liquid receiving container and connected to the float member by a connecting element, wherein the plug member is configured to have a shape suitable for plugging the liquid outlet of the liquid receiving container.

[0008] 4. The cryogenic fluid delivery system according to embodiment 3, wherein the liquid receiving container is located adjacent to and below the gas distribution container, and the liquid outlet of the liquid receiving container is located adjacent to and below the fluid inlet of the gas distribution container.

[0009] 5. The cryogenic fluid delivery system according to embodiment 4, wherein the connecting element is a metal rod extending from the float member through the fluid inlet of the gas distribution container and the liquid outlet of the liquid receiving container to the plug member.

[0010] 6. The cryogenic fluid transport system according to any one of embodiments 3 to 5, wherein the float component is configured to have a size and density sufficient to allow floating in a certain type of cryogenic fluid stored in the cryogenic fluid tank.

[0011] 7. The cryogenic fluid transport system according to embodiment 6, wherein the float is formed of a material suitable for working with cryogenic fluids.

[0012] 8. The cryogenic fluid transport system according to embodiment 7, wherein the float is formed of polyoxymethylene.

[0013] 9. The cryogenic fluid delivery system according to any one of embodiments 3 to 8, wherein the float component is configured to have a cross-section similar to but smaller than that of the gas distribution container.

[0014] 10. The cryogenic fluid transport system according to any one of the foregoing embodiments, wherein the cryogenic fluid transport system is environmental.

[0015] 11. The cryogenic fluid transport system according to any one of the foregoing embodiments, wherein the cryogenic fluid transport system is at least partially without thermal insulation.

[0016] 12. The cryogenic fluid transport system according to embodiment 11, wherein at least a portion of the boiling chamber is configured to have an insulating layer.

[0017] 13. The cryogenic fluid delivery system according to embodiment 12, wherein the insulating layer is configured to allow it to be dressed on the boiling chamber and removed from the boiling chamber.

[0018] 14. The cryogenic fluid transport system according to any one of embodiments 1 to 13 further includes a pressurization arrangement configured to controllably apply pressure to the cryogenic fluid within the boiling member.

[0019] 15. The cryogenic fluid transport system according to embodiment 14, wherein the pressurization arrangement includes at least one heating element and a pressure sensor, the at least one heating element being configured to apply heat to the interior of the boiling member at least indirectly, and the pressure sensor being configured to measure the gas pressure inside the boiling member.

[0020] 16. The cryogenic fluid transport system according to embodiment 14 or 15, wherein the pressurization arrangement is configured to be operated by an independent power source.

[0021] 17. The cryogenic fluid transport system according to any one of the foregoing embodiments, wherein the cryogenic fluid is a non-toxic cryogenic liquid.

[0022] 18. The cryogenic fluid transport system according to embodiment 17, wherein the cryogenic fluid is liquid nitrogen.

[0023] 19. The cryogenic fluid transport system according to embodiment 17, wherein the cryogenic fluid is liquid air.

[0024] 20. The cryogenic fluid transport system according to any one of the foregoing embodiments, wherein the boiling chamber further includes a safety arrangement configured to prevent the liquid cryogenic fluid from leaving the system.

[0025] 21. An air conditioning device for use with a cryogenic fluid tank, comprising a housing having: a tank receiving portion located at a bottom end of the housing, the tank receiving portion being configured to receive a cryogenic fluid tank; a hollow neck extending vertically upward from the tank receiving portion and configured to receive therein a cryogenic fluid delivery system according to any one of embodiments 1 to 20; and a dispensing portion located at an upper portion of the housing, the dispensing portion being configured to receive the dispensing member of the cryogenic fluid delivery system.

[0026] 22. The air conditioning device according to embodiment 21, wherein the neck is configured to have an elongation mechanism such that the neck portion can increase and decrease the length of the neck, and correspondingly increase and decrease the distance between the tank receiving portion and the dispensing portion.

[0027] 23. The air conditioning equipment according to embodiment 21 or 22, wherein the neck portion has a much smaller footprint than the tank receiving portion and the dispensing head.

[0028] 24. The air conditioning equipment according to any one of embodiments 21 to 23, wherein the distribution section is configured to be positioned at least 1 meter to 3 meters above the tank receiving section during operation of the equipment.

[0029] 25. The air conditioning equipment according to any one of embodiments 21 to 24, wherein the equipment further includes a scale configured to measure the amount of cryogenic fluid stored in the cryogenic fluid tank.

[0030] 26. The air conditioning equipment according to embodiment 25, wherein the weight measurement arrangement includes a communication module configured to transmit the measurement results to at least one remote device.

[0031] 27. The air conditioning device according to any one of embodiments 21 to 26, wherein the air conditioning device further includes a cryogenic gas saving module configured to transfer the cold generated around the boiling chamber after operation of the boiling chamber to the outside of the housing, while preventing cryogenic fluid from flowing toward the boiling chamber.

[0032] 28. The air conditioning device according to embodiment 27, wherein the cryogenic gas saving module comprises: a cryogenic valve that interconnects the tank connection member and the boiling chamber and is configured to prevent fluid flow between the tank connection member and the boiling chamber when a predetermined amount of cold accumulates around the boiling chamber; and a convection member configured to generate an airflow for promoting / transferring the accumulated cold to the outside of the housing.

[0033] 29. The air conditioning device according to embodiment 28, wherein the low-temperature valve is normally open and is configured to close when the temperature element and the convection member are electrically operated.

[0034] According to a second aspect of the currently disclosed subject matter, a tank connector device is provided for connecting a cryogenic fluid tank to a cryogenic fluid delivery system. The cryogenic fluid tank includes a neck and an inner container having a bottom, a top formed by the neck, and a sidewall extending between the bottom and the top. The cryogenic fluid delivery system includes a cryogenic liquid inlet. The tank connector device includes: a. A tank attachment arrangement configured to be fitted around the neck of the cryogenic fluid tank in a fluid-impermeable manner, the tank attachment arrangement having an externally facing surface, a tank-facing surface, and a central tunnel passing between the externally facing surface and the tank-facing surface along a vertical axis of the tank attachment arrangement; b. A fluid extraction module, fitted within the central tunnel in a fluid-impermeable manner, and having a fluid inlet portion projecting vertically from the tank-facing surface and a fluid outlet portion projecting vertically from the external-facing surface, the fluid inlet portion being configured to be received within the inner container and operated to allow cryogenic fluid to flow from the inner container toward the fluid outlet portion; and c. At least one fluid distribution member selectively fluidly communicated with the fluid outlet portion, operable to selectively allow cryogenic fluid to flow out to the outside of the tank connector device.

[0035] The second aspect may include at least the implementation schemes listed below.

[0036] 30. A tank connector device for connecting a cryogenic fluid tank to a cryogenic fluid delivery system, the cryogenic fluid tank including a neck and an inner container having a bottom, a top formed by the neck, and a sidewall extending between the bottom and the top, the cryogenic fluid delivery system including a cryogenic liquid inlet, the tank connector device comprising: a. A tank attachment arrangement configured to be fitted around the neck of the cryogenic fluid tank in a fluid-impermeable manner, the tank attachment arrangement having an externally facing surface, a tank-facing surface, and a central tunnel passing between the externally facing surface and the tank-facing surface along a vertical axis of the tank attachment arrangement; b. A fluid extraction module, fitted in a fluid-impermeable manner within the central tunnel and having a fluid inlet and a fluid outlet, the fluid inlet projecting vertically from the tank-facing surface in a direction away from the outer-facing surface, and the fluid outlet projecting vertically from the outer-facing surface in a direction away from the tank-facing surface, the fluid inlet being configured to be received within the inner container and operated to allow cryogenic fluid to flow from the inner container toward the fluid outlet; and c. At least one fluid distribution member selectively fluidly communicated with the fluid outlet portion, operable to selectively allow cryogenic fluid to flow out to the outside of the tank connector device.

[0037] 31. The can connector device according to embodiment 30, wherein the at least one fluid distribution member includes a gas distribution member configured to selectively distribute cryogenic gas to the outside of the can connector device, and the fluid extraction module includes a gas extraction member operable to allow cryogenic gas to flow from the inner container toward the gas distribution member.

[0038] 32. The tank connector device according to embodiment 30 or 31, wherein the at least one fluid distribution member includes a liquid distribution member configured to selectively distribute cryogenic liquid to the cryogenic liquid inlet of the cryogenic fluid delivery system, and the fluid extraction module includes a liquid extraction member operable to allow cryogenic liquid to flow from the inner container toward the liquid distribution member.

[0039] 33. The can connector device according to any one of embodiments 30 to 32, wherein the liquid extraction member includes a liquid inlet portion and the gas extraction member includes a gas inlet portion, the liquid inlet portion and the gas inlet portion together constituting the fluid inlet portion, wherein the liquid inlet portion protrudes a greater distance from the surface facing the can compared to the gas inlet portion.

[0040] 34. The tank connector device according to embodiment 32, wherein the liquid extraction member is in the form of a tube having a first diameter, and the fluid extraction module further includes a sleeve surrounding the liquid extraction member and having a second diameter larger than the first diameter, such that an annular space is formed between the sleeve and the liquid extraction member, thereby constituting the gas extraction member.

[0041] 35. The tank connector device according to embodiment 33 or 34, wherein the liquid dispensing member includes a coupling member configured to adaptably receive a corresponding coupling member of the cryogenic fluid delivery system in a liquid-impermeable manner to achieve fluid communication between the tank connector device and the cryogenic fluid delivery system.

[0042] 36. The can connector device according to embodiment 35, wherein the engagement member includes a liquid flow blocking mechanism configured to prevent liquid flow through the engagement member when the corresponding engagement member is not properly received in the engagement member.

[0043] 37. The can connector device according to embodiment 35 or 36, wherein the engagement member of the plug portion is formed by a shaft hole having a certain cross-section and is configured to tightly receive a corresponding engagement member having the same cross-section.

[0044] 38. The can connector device according to any one of embodiments 30 to 37, wherein the can attachment arrangement is formed as a hollow cap-shaped body, the hollow cap-shaped body being configured to fit tightly onto the outer surface of the neck portion of the cryogenic fluid can, and the surface facing the can includes at least one hole forming a fluid passage between the inner container of the cryogenic fluid can and the hollow cap-shaped body.

[0045] 39. The can connector device according to embodiment 38, wherein the cap-shaped body includes a pressure gauge, a filling tube having a one-way inlet, and a pressure reducing valve, the pressure gauge, the filling tube, and the pressure reducing valve extending through a sidewall and in fluid communication with a hollow space in the hollow cap-shaped body.

[0046] 40. The can connector device according to embodiment 37 or 38, wherein the can connector device further includes a clamping element configured to fit onto both the cap-like body and the neck of the cryogenic fluid can, and configured to have a relaxed state and a tightened state, wherein in the relaxed state the can connector device can be fitted onto and removed from the neck portion, and in the tightened state the clamping element presses a portion of the cap-like body against the neck portion, thereby forming a fluid-impermeable attachment between the cap-like body and the neck portion.

[0047] 41. The can connector device according to any one of embodiments 30 to 37, wherein the can attachment arrangement includes an extendable body that is convertible between a normal state and an extendable state, wherein in the normal state the extendable body is adapted to be inserted into the neck portion of the cryogenic fluid can, and in the extendable state the extendable body is operable to fit tightly into the neck portion of the cryogenic fluid can.

[0048] 42. The can connector device according to embodiment 41, wherein the extendable body is configured to transition from the conventional state to the extendable state by a fastening arrangement having an upper portion adjacently positioned above the outward-facing surface and a lower portion adjacently positioned below the can-facing surface, wherein the fastening is operable to decrease and increase the distance between the upper portion and the lower portion to allow the extendable body to transition between its conventional state and extendable state.

[0049] 43. The tank connector device according to embodiment 41 or 42, wherein the central tunnel is formed of a rigid material and the extendable body is formed as a sleeve surrounding the central tunnel.

[0050] 44. The tank connector device according to embodiment 43, wherein the diameter of the sleeve remains the same in both the conventional state and the extendable state of the extendable body, wherein in the conventional state the sleeve and the central tunnel form an annular space therebetween, and in the extendable state the sleeve is tightly pressed against the central tunnel in a fluid-impermeable manner.

[0051] 45. The can connector device according to any one of embodiments 41 to 44, wherein in the conventional state, the extendable body is configured to have a first diameter, and in the extendable state, the extendable body is configured to have a second diameter larger than the first diameter.

[0052] 46. ​​The can connector device according to any one of embodiments 41 to 44, wherein in the conventional state, the extendable body is configured to have a first cross-sectional surface area, and in the extendable state, the extendable body is configured to have a second cross-sectional surface area greater than the first cross-sectional surface area. Attached Figure Description

[0053] To better understand the subject matter disclosed herein and to illustrate how it can be implemented in practice, implementation methods will now be described by way of non-limiting example only, with reference to the accompanying drawings, in which: Figure 1 This is a perspective view of a cryogenic air conditioning unit, based on an example of the currently published subject matter; Figure 2This is a perspective view of a cryogenic fluid delivery system attached to a cryogenic fluid tank, based on an example of the currently disclosed subject matter. Figure 3 Is it like this? Figure 2 A perspective view of the liquid receiving section of the cryogenic fluid transport system shown. Figure 4A Is it like this? Figure 2 The diagram shows a perspective view of the boiling chamber of a cryogenic fluid transport system, which has transparent sidewalls for clarity. Figure 4B It is intercepted along plane AA. Figure 4A A magnified cross-sectional view of region 4B in the boiling chamber, which has flow-blocking components in an allowable state. Figure 4C and Figure 4B The same applies, where the flow-blocking component is in a blocked state; Figure 5A The diagram illustrates the section cut along plane AA. Figure 4A An exemplary embodiment of a cross-sectional view of a magnified portion of region 4B in a boiling chamber having an insulating mechanism in a wrapped state. Figure 5B and Figure 5A The same applies, except that the insulating mechanism is in a remote state; The boiling chamber has an insulating mechanism that is in a folded state; Figure 6A This is a perspective view of a gas-saving module attached to a gasification module, based on an example of the currently published subject matter; Figure 6B It is a section taken along the inside of the neck of a cryogenic air conditioning unit with a cryogenic fluid transport system. Figure 6A A magnified perspective view of region 6B in the vaporizer module, where the cryogenic valve is open and the convection member is closed; Figure 6C It is a section taken along the inside of the neck of a cryogenic air conditioning unit with a cryogenic fluid transport system. Figure 6A A perspective view of a magnified portion of region 6B in the vaporizer module, where the cryogenic valve is closed and the convection member is open; Figure 7A It is a perspective view of a cryogenic fluid vessel known in the art; Figure 7B It is intercepted along plane BB. Figure 7A A cross-sectional view of a cryogenic fluid tank; Figure 8A This is a perspective view of a tank connector device attached to a cryogenic fluid tank and a system connection portion attached to the tank connector device, based on an example of the currently disclosed subject matter. Figure 8B yes Figure 7A A cross-sectional view of a cryogenic fluid tank, in which Figure 8A The tank connector device is attached to the cryogenic fluid tank; Figure 9A yes Figure 8A The diagram shows a partial exploded view of the tank connector equipment and system connection portion. Figure 9B It is intercepted along plane CC. Figure 8A A cross-sectional view of the can connector device and the system connection portion attached to the can connector device; Figure 10A This is a perspective view of a tank connector device attached to a cryogenic fluid tank, based on another example of the currently disclosed subject matter; Figure 10B It is cut along the central vertical plane. Figure 10A A cross-sectional view of a tank connector device, wherein the tank connector device is attached to a cryogenic fluid tank; and Figure 10C It is along Figure 10A The plane DD intercepts Figure 10A A cross-sectional view of the can connector device. Detailed Implementation

[0054] An example of a cryogenic air conditioning unit (hereinafter, “the unit”) based on the currently disclosed subject matter is configured to operate as an outdoor stand-alone cooling unit, thereby allowing the release of cryogenic fluids into its vicinity.

[0055] Generally, the device may include a housing with a hollow interior and a cryogenic fluid delivery system located within the housing and configured to connect to a cryogenic fluid tank. The cryogenic fluid delivery system may be configured to allow cryogenic fluid to flow into the system from a first portion, allow the received liquid cryogenic fluid to boil into a gaseous cryogenic fluid, and facilitate the release of the gaseous cryogenic fluid to the outside of the system at different portions. In some cases, the cryogenic fluid tank may be located near the device, thus forming a single portable device. In other cases, the cryogenic fluid tank may be located in a remote location and connected to one or more devices via one or more piping elements in a detachable, fluid-impermeable connection.

[0056] The device can be configured for use with a cryogenic fluid tank, which may be integrated into or compatible with a housing. In another embodiment of the currently disclosed subject matter, the cryogenic fluid tank may be configured to have a tank connector device attached thereto, which is configured to enable quick and safe removal of the tank and connection of the tank to the device, as will be described in further detail.

[0057] One advantage of using cryogenic fluids for cooling is their liquid-to-gas expansion ratio. Some cryogenic fluids have a liquid-to-gas expansion ratio greater than 1:650 (at 20 degrees Celsius), and for example, one liter of liquid nitrogen can provide approximately 700 liters of gas, which can be released to the outside of the device at relatively low temperatures and used to lower the temperature of the surrounding environment.

[0058] The device can be configured to operate outdoors in an environmental manner. It can also be configured to operate without connection to a power grid (i.e., by a small portable power source), and in other cases, without being plugged into any power source. The device can do this by absorbing heat from the environment sufficient to cause the cryogenic fluid within the device to boil. For this purpose, the device can have a hollow housing defining an internal space configured to house the cryogenic fluid delivery system while providing or preventing insulation from the system to allow sufficient heat transfer between the system and the environment. By operating in an environmental manner, the device can be configured to be mobile, allowing it to be easily manipulated from one location to another in a manner similar to a gas-operated terrace heater. In other examples of the currently disclosed subject matter, the device may include at least one element utilizing electricity. In such examples, the device may include a heating device for accelerating heat absorption by the system or a cryogenic solenoid valve for assisting in regulating the flow of the cryogenic fluid within the device.

[0059] The housing may include a can receiving portion configured to receive a cryogenic fluid canister and allow for insertion and removal of the canister, for example, for replenishment purposes. The hollow body of the housing may include a thin outer shell defining an internal space, wherein the outer shell may be adapted to achieve adequate heat transfer to the outside of the device, at least in some portions of the outer shell. For this purpose, at least a portion of the housing may be formed of a material with high thermal conductivity, such as aluminum, polycarbonate, and polypropylene or ABS, and may be formed to have a thickness of about 1 mm to 4 mm (depending on the type of material used). In some cases, some portions of the housing may be narrower than others to reduce the volume of air in the internal space separating the cryogenic fluid delivery system from the outer shell of the housing. In some cases, some portions of the outer shell may be thinner or thicker than others.

[0060] The tank receiving section of the housing may include a counterweight sufficient to stabilize itself. In other cases, the housing may be relatively lightweight, where sufficient stability can be provided by the tank disposed within the housing. In some cases, the tank receiving section may be configured to have a scale on its bottom surface, on which the cryogenic fluid tank can be positioned for measuring the amount of cryogenic fluid stored in the cryogenic fluid tank. The tank receiving section may also include a retractable trolley, which may be integrated into or integral with the tank receiving section, on which the cryogenic fluid tank can be positioned.

[0061] The housing may include a dispensing section through which cryogenic gas is released to the outside of the device at the upper portion of the device, and the dispensing section is connected to the tank receiving section via an extended neck portion.

[0062] refer to Figure 1 The device of the present invention, designated 10, has a housing 12 and a base 14, which may be separate from or integral with the housing 12. The housing 12 includes a can receiving portion 16 located at the bottom portion of the housing, a dispensing portion 18 located at the top portion of the housing, and an elongated neck 19 interconnecting the can receiving portion 16 and the dispensing portion 18. The can receiving portion is configured to receive and contain a cryogenic fluid can (not shown) therein.

[0063] The tank receiving section 16 may include an opening (not shown) having a selectively removable hatch providing passage to the interior space within the housing 12. The opening and hatch are sized to accommodate cryogenic tanks of varying sizes, such as 25-liter to 50-liter Dewar flasks, particularly 35-liter Dewar flasks. In some cases, the cryogenic fluid used with the apparatus must be a non-toxic and non-flammable cryogenic fluid, such as nitrogen. In other cases, the cryogenic fluid may be liquefied air (i.e., a gas mixture simulating the composition of atmosphere cooled to condensation temperature), and in such cases, the apparatus can operate indoors.

[0064] Generally speaking, the distribution section can be configured to have one or more gas outlets located within the distribution section, with a radius of up to 360 degrees around it. o The gas is distributed in a specific manner. Gas outlets can be arranged at equal intervals. One or more gas outlets can be configured to have an open state and a closed state; in the open state, cryogenic fluid gas is distributed through the gas outlet, and in the closed state, cryogenic fluid gas is prevented from being distributed through the gas outlet. In some cases, one or more gas outlets can be manipulated to change their angle relative to the casing, thereby increasing or decreasing the angle of gas distribution.

[0065] In this example of the invention, the dispensing portion 18 is positioned at the top of the device 10 and includes three gas outlets 17A, 17B (the third is not shown), each gas outlet being positioned at 120 degrees around the device and the other two gas outlets to form a cooling sphere around the device.

[0066] Generally, at least during operation of the device, the dispensing section can be positioned between 0.5 meters and 3 meters above the tank receiving section. For this purpose, the neck can be configured with an elongation mechanism, allowing the neck to extend and retract, thereby increasing and decreasing the distance between the dispensing section and the tank receiving section. In some cases, the dispensing member may include at least one guiding element for each gas outlet for guiding the gas released from the gas outlet. In another example of the currently disclosed subject matter, one or more gas outlets may be positioned along the neck of the housing.

[0067] In this example of the invention, the elongated neck 19 is hollow and configured to have a much smaller footprint than the tank receiving portion 16 and the dispensing portion 18. The footprint of the neck is configured to accommodate a cryogenic fluid delivery system, which provides a channel for the cryogenic fluid delivery system to connect the cryogenic fluid tank to the dispensing portion 18. Although illustrated in a circular cross-section, the elongated neck can take various forms, such as an elliptical cross-section, a hexagonal cross-section, or an octagonal cross-section.

[0068] Generally, a cryogenic fluid delivery system may have a tank engagement member at one end of the system configured to receive liquid cryogenic fluid, and at the other end of the system at at least one dispensing member configured to dispense gaseous cryogenic fluid from it. The tank engagement member may be configured to be removably attached to the cryogenic fluid tank in a fluid-impermeable manner and selectively allow cryogenic fluid to flow into the system. The flow of cryogenic fluid from the cryogenic fluid tank into the system may occur naturally solely by means of the internal forces acting within the tank through the vaporization of the cryogenic fluid in the tank. In other cases, external devices may be used to apply force to the fluid within the tank to facilitate the outflow of liquid cryogenic fluid from the tank.

[0069] At least one dispensing member may be configured to remain at an elevated position relative to the tank engagement member at least during system operation and to dispense gaseous cryogenic fluid to the outside of the system, i.e., to the dispensing member of the housing and through the dispensing member of the housing.

[0070] The cryogenic fluid delivery system also includes a vaporizer module that fluidly connects the tank connection member and the distribution member in a gas-impermeable manner. For example, the tank connection member and the distribution member can be connected via piping members configured for use with cryogenic fluids. To enable the received liquid cryogenic fluid to be converted into gaseous cryogenic fluid, the vaporizer module may include a boiling member configured to allow the liquid cryogenic fluid received in the boiling member to boil and vaporize into unpressurized gaseous cryogenic fluid, which is then propelled from the boiling member to the distribution member.

[0071] The cryogenic fluid transport system 100 of this invention is an example of... Figures 2 to 5BThe image is best shown and includes a tank engagement member 110, a dispensing member 120, and a vaporizer module 130 that fluidly connects the tank engagement member 110 and the dispensing member 120. The tank engagement member 110 is configured to achieve a fluid-impermeable connection with the cryogenic fluid tank 20 to enable fluid communication between the cryogenic fluid tank 20 and the cryogenic fluid delivery system 100. In some cases, the tank engagement member 110 may be configured to connect to a tank connector device assembled around the neck of the cryogenic fluid tank, such as regarding... Figures 8A to 10C Further discussion is needed.

[0072] Generally, the distribution components of a cryogenic fluid delivery system can be configured to receive cryogenic gas from a vaporizer module and distribute the cryogenic gas to the outside of the vaporizer module. In some cases, the distribution arrangement can be configured to provide a continuous gas flow, while in others, the distribution device can be configured to provide gas ejections of varying intensities.

[0073] The dispensing member 120 is configured to receive gaseous cryogenic fluid from the vaporizer module 130 and to propel the gaseous cryogenic fluid toward and out of the dispensing portion 18 of the housing 12 in a gas-impermeable manner. In an example of the invention, the dispensing member 120 comprises at least one outlet 122 configured such that the gaseous cryogenic fluid can flow from the boiling chamber 140 to at least one gas outlet 17A and 17B of the dispensing portion 18 at approximately atmospheric pressure.

[0074] Generally, a vaporizer module can be formed as a gas-impermeable piping system configured to allow cryogenic fluid to flow from the tank connection member to the distribution member within the piping system. For this purpose, the vaporizer module can be formed of a material suitable for working with cryogenic fluids. It is important to emphasize that the system can operate solely through the movement of the cryogenic fluid within the vaporizer module, which is caused solely by the pressure generated by the vaporization of the cryogenic fluid within the tank environment.

[0075] The vaporizer module may include a liquid receiving section and a gas releasing section. The liquid receiving section may include a safety relief valve with a pressure reducing valve configured to allow cryogenic fluid to be released from the liquid receiving section when the pressure within the liquid receiving section rises above a certain threshold.

[0076] The liquid receiving section of the vaporizer module 130 of this invention (in) Figure 3The system receiving section 132 (referred to as 132) includes: a system connection portion 133 adapted to connect to the cryogenic fluid tank 20, as will be described in detail below; a liquid outlet 134; a valve 135 configured to allow a user to manually stop fluid flow into the system; and a pressure reducing valve 136 configured to open when the pressure in the liquid receiving section 132 is dangerously high (i.e., above 22 PSI) to direct the cryogenic liquid from the liquid receiving section 132 to the outside of the system. The gas release portion of this invention, as exemplified by the present invention, is constituted by the system distribution member 120.

[0077] Generally, a vaporizer module can be configured to have a boiling chamber in which a liquid cryogenic fluid can be boiled in a controlled manner and converted into a gaseous cryogenic fluid. The boiling chamber can be configured to have a liquid receiving section and a gas releasing section. The liquid receiving section is configured to allow the liquid cryogenic fluid to accumulate in the gas releasing section, which is configured to allow the accumulated liquid cryogenic fluid in the gas releasing section to boil into a gaseous cryogenic fluid, and to facilitate the non-pressurized delivery of the gaseous cryogenic fluid toward the distribution member. As used herein, the term "non-pressurized" means that the gaseous cryogenic fluid can flow through the distribution member of the system and out of the distribution section of the housing, at least by the pressure generated solely by boiling occurring in the gas releasing section of the boiling chamber.

[0078] The boiling chamber may include a liquid receiving container and a gas distribution container that are in fluid communication with each other. The liquid receiving container may constitute the liquid receiving section of the boiling chamber and be in fluid communication with the liquid receiving section at one part and with the gas distribution container at different parts of the liquid receiving container. The liquid receiving container may be configured to receive and accumulate the cryogenic liquid in a manner that mitigates boiling of the cryogenic liquid within the liquid receiving container.

[0079] A gas distribution container may constitute a gas release section and be in fluid communication with a receiving container to receive liquid cryogenic fluid from the receiving container, and in fluid communication with a distribution member to distribute gaseous cryogenic gas from the distribution member. The gas distribution container may be configured to allow the cryogenic liquid positioned within it to boil in a controlled manner into its gaseous form. The gas distribution container may include sidewalls that may be configured to have dimensions suitable for positioning and / or fitting into an outer sheath (and more specifically, an extended neck of the housing) immediately adjacent to the housing to facilitate ambient heat transfer between the exterior of the housing and the interior space of the container.

[0080] The liquid receiving container and the gas distributing container can be connected to each other in such a way that liquid begins to flow into the gas distributing container only when the liquid receiving container is approximately full. In one example of the currently disclosed subject matter, the gas distributing container may be positioned on top of the liquid receiving container, and more specifically, at least a portion of the top plate of the liquid receiving container constitutes at least a portion of the bottom plate of the gas distributing container. In other examples, the liquid receiving container and the gas distributing container may be fluidly connected via impermeable tubular elements.

[0081] like Figure 2 and Figures 4A to 4B As shown, the vaporizer module 130 includes a boiling chamber 140 configured to allow a liquid cryogenic fluid positioned within the boiling chamber to boil into a gaseous cryogenic fluid. In this example of the invention, the boiling chamber 140 is configured to be positioned within an extended neck 19 of the housing 12. In this example, the diameter of the boiling chamber is slightly smaller than the diameter of the extended neck 19. The boiling chamber 140 includes a liquid receiving container 150 and a gas distribution container 160 fluidly connected to the liquid receiving container 150 in a fluid-impermeable manner.

[0082] The liquid receiving container 150 is formed as a cylinder defining a central axis X that runs vertically through it, and includes a bottom partition 152, a top partition 153, and a sidewall 154 extending between the bottom partition and the top partition and having a first inner diameter D1. A liquid inlet 155 is formed in the bottom partition 152 through which a cryogenic liquid fluid can enter from the tank via the liquid receiving portion 132, and a liquid outlet 156 is formed at the top partition 153 of the liquid receiving container. Both the liquid inlet 155 and the liquid outlet 156 are concentric with the central axis X. The gas distribution container 160 is also formed as a cylinder and includes a bottom partition 162, a top partition 163 forming the upper surface of the top partition 153 of the liquid receiving container 150, and a sidewall 164 extending between the bottom partition and the top partition and having a second inner diameter D2 greater than D1. The bottom partition 162 includes a liquid inlet 165 fluidly connected to the liquid outlet 156, and the top partition 163 includes gas outlets 122A and 122B that together form the distribution member 120. The liquid inlet 165 is also concentric with the central axis X and forms a connection channel 170 with the liquid outlet 156 of the liquid receiving container 150. The gas distribution container 160 includes at least one connector 168 configured to allow the integration of accessories into the system.

[0083] Generally, the boiling chamber may also include a blocking arrangement configured to selectively prevent fluid communication between the liquid receiving container and the gas distribution container when a predetermined amount of liquid is positioned within the gas distribution tank. Therefore, when the liquid receiving container is filled to a point where the cryogenic liquid enters the gas distribution container, and when sufficient cryogenic fluid enters, the blocking arrangement blocks the fluid path. Consequently, the cryogenic liquid within the container absorbs latent heat and vaporizes into a gaseous form. Then, due to the greater liquid-to-gas expansion ratio of the cryogenic gas, the gaseous cryogenic fluid self-pressurizes and exits from the gas outlet of the gas distribution chamber, passing through the distribution components and outside the system.

[0084] The blocking arrangement may include a measuring element and a blocking element. The measuring element is configured to measure the amount of liquid in the gas distribution container and actuate the blocking element when a predetermined amount of liquid is measured, and the blocking element is configured to prevent fluid communication between the liquid receiving container and the gas distribution container when actuated by the measuring element.

[0085] like Figures 4A to 4C As shown, the boiling chamber 140 also includes a flow-stopping member 200 configured to have a permissive state and a preventive state. In the permissive state, fluid can flow into the gas distribution container 160, and in the preventive state, fluid is prevented from flowing into the gas distribution container 160, so that the cryogenic liquid located in the gas distribution container can boil. The flow-stopping member 200 includes a float 210 located in the gas distribution container 160 and a plug member 220 located in the liquid receiving container 150. The float 210 is configured to rise with the liquid level in the gas distribution container 160 and thus constitutes a measuring element for measuring the amount of liquid in the gas distribution container. The plug member 220 is configured to fit onto the liquid outlet 156 of the liquid receiving container to selectively prevent liquid from flowing from the liquid outlet toward the gas distribution container 160 when actuated by the float 210.

[0086] Float 210 is configured to have dimensions suitable for working with cryogenic fluids and is formed of a material suitable for working with cryogenic fluids while allowing the float to float in a certain type of cryogenic fluid stored in a cryogenic fluid tank. In the case of nitrogen as the cryogenic fluid, the float may be formed of an engineering thermoplastic such as polyoxymethylene. Float 210 is configured to have a shape slightly smaller but similar to that of the gas distribution container 160 to prevent the float 210 from being angled to the sidewall 164 of the gas distribution container 160, while forming a gap 180 between the float 210 and the sidewall 164 through which the gaseous cryogenic fluid can pass. Float 210 includes a third inner diameter D3 that is smaller than a second inner diameter D2 of the gas distribution container 160 and larger than a first inner diameter D1. The distance D2-D3 is configured sufficiently to allow the liquid cryogenic fluid located below the float 210 to vaporize and to allow the vaporized gaseous cryogenic fluid to be propelled toward the distribution member 120. In an example of the invention, the float 210 is formed of a hollow body 211 having a cover 212 tightly fitted onto the hollow body. Generally, the measuring element and the blocking element can be composed of two different elements that are electrically connected to each other via wire or wireless means. For example, the float and the plug can communicate wirelessly with each other, and when the float reaches a certain distance from the bottom divider of the gas distribution container, the float can signal the plug to block the liquid outlet. In some cases, the measuring element and the blocking element can be physically connected to form a single element, wherein the blocking element can be located in the liquid receiving container and the measuring element can be located in the gas distribution container, while having a connecting member connecting the measuring element and the blocking element via a connecting channel. In some cases, the length of the connecting member can be varied to bring the float and the plug closer together or further apart.

[0087] In this invention, the float 210 and the plug member 220 are connected via a connecting member 230, which has a top end connected to the float 210 and a bottom end formed by the plug member 220. The connecting member 230 extends along a vertical axis X through a connecting channel 170 and has a gas distribution section 231 positioned in a gas distribution chamber and a liquid receiving section 232 positioned within a liquid receiving container 150. In an permissible state, the gas distribution section 231 is configured to have a length L1, and in a blocked state, the gas distribution section 231 is configured to have a length L2 greater than L1, wherein the length L2-L1 determines the distance the float should rise so that the plug reaches and blocks the liquid outlet 156. In an example of the invention, the liquid receiving section 232 of the connecting member 230 is configured to have a spring element 234 threadedly connected to the connecting member. This spring element is configured to apply a force opposite to the lifting force exerted on the connecting member 230 by the float in the blocking state, in order to facilitate smooth operation of the flow blocking member 200 and the transition between the state of the flow blocking member. In other examples, the float 210 is configured to have sufficient weight to provide sufficient gravity to facilitate smooth operation and the transition between the states.

[0088] According to examples of the currently disclosed subject matter, the apparatus may include an insulating arrangement surrounding any portion of the vaporization module section. Specifically, the apparatus may include an insulating arrangement surrounding a boiling chamber, configured to selectively provide an insulating layer between the boiling chamber and the outer housing of the apparatus. The insulating arrangement may be configured to have a retracted state in which the sidewalls of the boiling chamber are adjacent to the outer housing of the enclosure and only air separates the boiling chamber from the outer housing. The insulating arrangement may also be configured to have an extended state in which a retractable layer surrounds at least a portion of the boiling chamber. The retractable layer may be configured to have thermally insulating properties to slow the boiling rate of the cryogenic fluid within the boiling chamber, thereby resulting in less gaseous cryogenic fluid being distributed through the apparatus. In other cases, the retractable layer may be configured to have thermally conductive properties to accelerate the boiling rate of the cryogenic fluid within the boiling chamber, thereby resulting in more gaseous cryogenic fluid being distributed through the apparatus.

[0089] The insulation arrangement may include a deployment mechanism configured to selectively deploy and retract a retractable layer around any portion of the boiling chamber. The deployment mechanism may be configured to deploy the retractable layer to a desired degree between full deployment and no deployment, in which the retractable layer at least completely surrounds the gas distribution chamber, and in which the retractable layer may be completely retracted within the deployment mechanism or away from the gas distribution chamber. In some cases, the deployment mechanism may constitute a rolling mechanism or a sleeve capable of being vertically manipulated for fitting onto and removing from the gas distribution chamber.

[0090] In an example of the invention, the device further includes an insulating arrangement 250, which is in Figure 5A In the unfolded state and in Figure 5B The liquid receiving container 150 is in a retracted state. The insulating arrangement 250 includes an operating mechanism 251 and a retractable layer 252 having a cylindrical shape and being sized to fit between the liquid receiving container 150 and the outer shell of the housing 12 to surround the entire liquid receiving container 150. The operating mechanism 251 of this invention is shown as a rolling mechanism (one side of the retractable layer 252 is fixedly connected to this operating mechanism) and is configured to accommodate approximately the entire retractable layer 252 in the unfolded state and to unfold approximately the entire retractable layer 252 in the unfolded state. The operating mechanism 251 of this invention is manually operated without electricity via an actuation handle 253, thereby allowing the user to determine the extent to which the retractable layer 252 surrounds the gas distribution container 160.

[0091] Generally, cryogenic fluid delivery systems may include a cryogenic gas-saving module, which can be configured to extend the usable time of each cryogenic fluid tank. The cryogenic gas-saving module can switch between an accumulation state and a distribution state, in which cold, in the form of ice and / or cold air, accumulates around the boiling chamber due to the intense cooling within the boiling chamber, and in the distribution state, cooling is performed by convection components. The cryogenic gas-saving module can be configured to utilize the accumulated cold to cool the surrounding environment without using the cryogenic fluid, meaning that cryogenic fluid flow can be prevented during operation of the cryogenic gas-saving module. The cryogenic gas-saving module can be operated by actuating at least one airflow generator that generates an airflow that will be cooled by the cold within the device and delivers the airflow to the external environment of the device, while using cryogenic valves to reduce and / or prevent the flow of cryogenic fluid toward the boiling chamber. The convection of the accumulated cold can also raise the temperature of the boiling chamber and its surrounding environment within a preferred temperature range for smooth operation of the boiling chamber.

[0092] The cryogenic gas-saving module can be configured to operate electrically, with the power source being an external power grid, a self-generated generator, or a battery that forms part of the system. In some cases, the power can be generated during the operation of the boiling chamber and discharged during the activation of the cryogenic gas-saving module. Where a battery is available to power the cryogenic gas-saving module, the system may include two battery slots configured such that one battery can power the module while the other can be charged externally to the system.

[0093] In some cases, the cryogenic gas saving module can be configured with a thermal sensor that communicates electronically with the cryogenic valve and the convection component. In such cases, when the temperature of the boiling chamber drops below a predetermined threshold, the cryogenic gas saving module instructs the cryogenic valve to prevent or significantly reduce flow from the tank toward the boiling chamber, while simultaneously activating the convection component.

[0094] In an example of the present invention, such as Figures 6A to 6C As shown, the cryogenic gas saving module 110' interconnects the tank connection member 110 with the boiling chamber 140 via a cryogenic valve 116'. The cryogenic valve 116' is connected to a valve engine housing 112', in which a motor (not shown) configured to operate the cryogenic valve 116' is located. At least one convection member 119' may be positioned adjacent to the boiling chamber and may be configured to operate when transferring cold from inside the air conditioning unit to the outside of the air conditioning unit. A communication module (not shown) is positioned within the valve engine housing 112' and is configured to receive information about the amount of cold accumulating around the boiling chamber 140 via a temperature sensor (also not shown) and communicate accordingly with the convection member 119' and the motor of the cryogenic valve 116'.

[0095] like Figure 6B As shown, the amount of cold (C) accumulated on the boiling chamber 140 is insufficient to cause adequate cooling to the outside of the system, and therefore, normal operation of the system 100 occurs, causing the liquid cryogenic fluid to flow toward the boiling chamber (arrow L) and the gaseous cryogenic fluid to flow toward the distribution member (arrow G). In this case, the cryogenic valve 116' is open (normally open in this case), and the convection member 119' is not operational.

[0096] like Figure 6C As shown, the amount of cold (C) accumulated on the boiling chamber 140 is now sufficient to cause adequate cooling to the outside of the system, and therefore, the cryogenic gas saving module 110' switches to the distribution state. In the distribution state, the flow of liquid cryogenic fluid toward the boiling chamber (arrow L) is blocked (arrow L). In this case, the cryogenic valve 116' is closed, and the convection member 119' is operated to transfer the cold to the outside of the housing.

[0097] Figure 7A and Figure 7B A typical cryogenic fluid container used with the apparatus of the present invention is illustrated. The cryogenic fluid container 20 includes an outer sheath 21 and an inner fluid holding vessel 22, with a separating layer (not shown) possibly between the outer sheath and the inner fluid holding vessel. The inner fluid holding vessel 22 forms a neck portion 23 together with the outer sheath 21, thereby defining an opening in the inner fluid holding vessel 22, and has an inlet tube 24 extending from the neck portion into the inner fluid holding vessel 22 almost to its bottom.

[0098] According to the currently disclosed subject matter, a tank engagement member of a cryogenic fluid delivery system can be configured to be detachably attached to a cryogenic fluid tank in a fluid-impermeable manner, selectively allowing cryogenic fluid to flow out of the tank and into the system. To this end, the cryogenic fluid tank can be configured to have a tank connector device to which the tank engagement member of the cryogenic fluid delivery system can be connected, enabling quick and convenient attachment and removal of the system from the tank for the user without exposing the cryogenic fluid stored within the tank to the environment. The tank connector device may include coupling elements configured to securely attach the tank connector device to the cryogenic fluid tank.

[0099] Generally, a tank connector device configured to attach to a cryogenic fluid tank in a fluid-impermeable manner may include a tank attachment arrangement and a fluid extraction module. The tank attachment arrangement is configured to assemble around the neck of the tank, and the fluid extraction module is configured to facilitate controlled flow of the cryogenic fluid from the tank through the body and to the outside of the body. The tank attachment arrangement may include a central tunnel passing along a vertical axis of the tank attachment arrangement to allow fluid to flow through the central tunnel.

[0100] In some cases, the fluid extraction module can be fitted impermeably within a central tunnel and may have a fluid inlet portion and a fluid outlet portion. The fluid inlet portion protrudes vertically from the tank-facing surface in a direction away from the tank-facing direction, and the fluid outlet portion protrudes vertically from the tank-facing surface in a direction away from the tank-facing surface. The fluid inlet portion may be configured to be received within an inner container and operated to allow cryogenic fluid to flow from the inner container toward the fluid outlet portion. The fluid outlet portion may be configured to be in fluid communication with at least one fluid distribution member, which operates to selectively allow cryogenic fluid to flow out to the outside of the tank connector device.

[0101] An example of the currently disclosed subject matter of the can connector device 300 is shown in Figure 8A and Figure 8B As shown in the diagram, it is attached to the cryogenic fluid tank 20, and... Figure 9A and Figure 9BThe system connection portion 400 of the can connector device 300 is shown together with the can engagement member 110. The can connector device 300 includes a cap-like body 310 having a sidewall 311 extending between a system-facing surface 312 and an opposite can-facing surface 313. The sidewall 311 is dimensioned to fit snugly within a neck portion 23. The sidewall also includes a skirt-like portion 314 that projects laterally outward from a portion of the sidewall 311 above the can-facing surface 313, extending to a extent sufficient to be positioned on top of the neck portion 23, while a portion of the neck below the skirt-like portion 314 defines a neck fitting portion 315 configured to fit snugly within the neck portion 23 when the can connector device 300 is attached to the cryogenic fluid can 20. The skirt-like portion 314 includes a bottom surface having a circumferential groove (not shown) with a sealing strip positioned therein to prevent fluid leakage from the cryogenic fluid can 20 when the cap-like body 310 is attached to the cryogenic fluid can 20.

[0102] The cap-shaped body 310 also includes a pressure gauge 316, a one-way valve 317, and at least one pressure reducing valve 318, which extend from the outside through to an internal space formed within the cap-shaped body 310 and are in fluid communication with three gas-permitting orifices (two of which, 315A and 315B, are shown) formed in the can-facing surface 313 of the cap-shaped body 310 (which is hollow in this example of the invention) and, when attached to the can, enable fluid communication with the internal fluid maintaining vessel 22.

[0103] Generally, the connecting element of a can connector device may be integrally formed from a cap-like body, such as an extension of a skirt-like portion, which may be threaded onto the neck portion of the can. In other cases, the connecting element may be implemented by any attachment means known to those skilled in the art. More specifically, the connecting element may be configured such that at least a portion of the connecting element is positioned against the cap-like body from the inside or the outside of the cap-like body, and at least a portion of the connecting element is configured to be positioned against the neck portion from the inside or the outside of the neck portion. The connecting element may be configured to have a fastening arrangement that operates to increase the attachment of the can attachment arrangement to the neck portion.

[0104] In an example of the invention, the can connector device 300 includes a connecting element 320 configured as a fastening clamp formed by two semicircles 321A and 321B, which are pivotally connected to each other at one end and have a fastening arrangement 324 at the other end. Each semicircle of the connecting element 320 is configured to have an upper edge that laterally protrudes inward from its top end and is configured to fit onto a skirt-like portion 314 of a cap-like body, and a bottom edge that laterally protrudes inward from its bottom surface and is configured to rest against a portion of the neck portion of the can, which in this example of the invention is one of a plurality of circumferential grooves 25 embedded in the neck portion 23, thereby enabling this assembly.

[0105] Generally, a liquid extraction module may include a tank-facing portion and an attachment portion. In some examples, the tank-facing portion may extend vertically outward from the tank-facing surface to approximately the bottom of the internal fluid holding vessel when connected to the tank, so that the tank-facing portion can extract liquid even when a small amount of cryogenic liquid is present in the tank. In other examples, the tank engagement member of the system may be made of a flexible hose, and the tank-facing portion may be fixed to allow easy detachment of the flexible hose from the cryogenic fluid tank and easy attachment of the flexible hose, since the cryogenic fluid tank may be positioned within a radius rather than a specific point so that the flexible hose reaches the cryogenic fluid tank.

[0106] The attachment portion of the liquid extraction module may face the exterior of the system-facing surface, while also being flush with, protruding from, or embedded in the system-facing surface. The attachment portion may include a receiving shaft hole configured to adaptably receive a corresponding engagement member of the cryogenic fluid delivery system in a gas-impermeable manner. The corresponding engagement member of the cryogenic fluid delivery system may have a shape complementary to the receiving shaft hole, and the receiving shaft hole may be configured to have a flow-blocking mechanism that prevents fluid flow through it when the corresponding engagement member is not fully engaged.

[0107] In this example of the invention, the can connector device 300 includes a liquid extraction module 340 that extends from the system-facing surface 312 through the cap-shaped body 310 to the can-facing surface 313, concentric with the central vertical axis X'. The liquid extraction module 340 includes a can-facing portion formed by a liquid extraction tube 330 extending vertically downward from the can-facing surface 313 of the cap-shaped body 310. The liquid extraction tube 330 includes a height H3 slightly greater than the height H2 of the internal fluid holding vessel 22, sufficient to reach approximately the bottom of the internal fluid holding vessel, so that liquid can be extracted even when the amount of liquid in the internal fluid holding vessel 22 is low.

[0108] The attachment portion of the liquid extraction module 340 includes a receiving shaft hole 350 embedded in the system-facing surface 312 of the cap-like body 310. This receiving shaft hole has a quick connector (not shown) interconnecting the receiving shaft hole 350 with a liquid extraction tube 330. The receiving shaft hole 350 is configured to have an inclined sidewall 351 converging into a bottom hole 352 leading to a selective connector 355. The top surface of the inclined sidewall 351 is configured to have a guide edge 353 projecting vertically upward from the system-facing surface 312 to guide a corresponding element into the receiving shaft hole 350. The selective connector 355 of this invention is configured to selectively allow fluid to pass through the selective connector only when the corresponding engaging element is assembled therein.

[0109] Generally, the tank connection component of a cryogenic fluid delivery system may consist of a system connector portion configured to form a detachable flow path with the tank connector device 300. The system connection portion may include a connector body having a system side surface and a tank-facing surface. The system side surface may be configured to have a system connector, which is configured to allow for fluid-impermeable connection to the cryogenic fluid delivery system, and more specifically, to a vaporizer module. The tank-facing surface may include a corresponding engagement element that protrudes vertically from the tank-facing surface and is configured to fit tightly in a fluid-impermeable manner into a receiving shaft bore of the tank fixing portion, and more specifically, to fit tightly through a hole at the bottom of the receiving shaft bore.

[0110] In this example of the invention, the tank engagement member of the cryogenic fluid delivery system 100 is configured to include a system connection portion 400 configured to engage with a tank connector device 300. The system connection portion 400 includes a body 410 having a sidewall 411 extending between a system-facing surface 412 and a tank-facing surface 413, the tank-facing surface 413 having a circumference that matches or is larger than the system-facing surface 312 of the tank connector device 300. To achieve a fluid-impermeable connection between the system connection portion 400 and the tank connector device 300, the system-facing surface 312 of the cap-like body 310 includes a circumferential groove 319 extending around the circumference of the system-facing surface and having a sealing strip 319A tightly fitted within the circumferential groove.

[0111] The system connection portion 400 includes a corresponding engagement element 415 protruding from the surface 413 facing the tank and a system connector (not shown) protruding from the surface 412 facing the system. Both the corresponding engagement element and the system connector extend along a central vertical axis X' and are concentric with the central vertical axis. The corresponding engagement element 415 includes a shaft hole mating portion 414 configured to have a cross-section that mates with a receiving shaft hole 350 for a tight fit within the receiving shaft hole, and the corresponding engagement element 415 is configured to mate with a selective connector 355.

[0112] Generally, a tank connector device can be configured to have an extension mechanism that operates between a retracted state and an assembled state. In the retracted state, the system connection portion is moved away from the tank engagement member to allow the tank to be removed together or separately from the tank engagement member. In the assembled state, the system connection portion is fitted onto the tank engagement member in a gas-impermeable manner. In some cases, the system connection portion may constitute an extension mechanism in which, in the retracted state, at least the engagement element is moved away from the system connector to a first degree, and in the assembled state, the engagement element is moved away from the system connector to a second degree greater than the first degree, while still providing a fluid-impermeable passage from the engagement element out of the system connector.

[0113] exist Figures 10A to 10C Another example of a tank connector device 300', the subject of the present disclosure, attached to a cryogenic fluid tank 20, is shown. The tank connector device 300' includes an extendable body 310' having sidewalls 311 extending between a system-facing surface 312 and an opposite tank-facing surface 313. The sidewalls 311 are dimensioned to fit snugly within a neck portion 23. The body also includes a skirt-like portion 314 that laterally projects outward from the system-facing surface 312, extending to a degree sufficient to be positioned on top of the neck portion 23.

[0114] Generally, a tank connector device can be attached to the neck of a cryogenic fluid tank by being tightly fitted into the neck portion in a fluid-impermeable manner. In some cases, the tank connector device can be configured to increase its diameter to press against the inner wall of the neck portion and thus provide a fluid-impermeable seal. The tank connector device may have a rigid core and a compressible sleeve, wherein the compressible sleeve is designed to be compressed to fit onto the rigid core in a manner that increases its diameter. In some cases, the portion of the tank connector device 300' intended to be compressed against the sidewall may be configured to have a rigid surface to increase friction between that portion and the sidewall.

[0115] In this example of the invention, the body includes a rigid hollow tunnel 370 having an inner wall 371, a can-facing portion 370A, and an outer-facing portion 370B. The rigid hollow tunnel 370 extends along its vertical axis X from the system-facing surface 312 through the body to the can-facing surface 313, and a compressible outer shell 372 is held onto the rigid hollow tunnel by a bottom nut 373 attached to it. An extendable body 310' is configured to transition between a conventional state and an extendable state, in which the extendable body has a first diameter and in the extendable state, a second diameter larger than the first diameter, allowing the extendable body to fit snugly within the neck portion 23. The body is configured to compress from the conventional state to the extendable state by a threaded fastening nut 374 located on the outer-facing portion 370B of the rigid hollow tunnel 370. The fastening nut 374 includes a lateral handle 374A, allowing a user to change the state of the body from the conventional state to the extendable state.

[0116] The tank connector device 300' also includes a gas containing portion 375 (or fluid outlet) configured to receive cryogenic gas from a cryogenic fluid tank and to selectively release the cryogenic gas to the outside of the tank connector device 300'. The gas containing portion 375 includes a pressure gauge 316 and a one-way valve 317 extending from the outside into an internal space formed within the gas containing portion 375, as well as at least one pressure reducing valve 318.

[0117] The can connector device 300' includes a liquid extraction tube 330 consisting of a tube with a diameter smaller than the diameter of the internal space of the gas containing portion 375. The liquid extraction tube 330 includes a top portion having an attachment portion that protrudes from the top surface of the gas containing portion 375 and is identical to the attachment portion of the liquid extraction module 340. The liquid extraction tube 330 also includes a bottom portion that extends vertically away from the can-facing surface 313 of the extendable body 310' and is aligned with the vertical axis of the body. The inner walls 371 of the liquid extraction tube 330 and the rigid hollow tunnel 370 are concentric and spaced apart from each other along their entire length to allow cryogenic gas to flow from the cryogenic fluid can to the gas containing portion 375 (e.g., Figure 10C (As shown).

Claims

1. A cryogenic fluid delivery system for use with a cryogenic fluid tank, comprising: a. A tank engagement member configured to be fixedly attached to the cryogenic fluid tank and selectively allow cryogenic fluid to flow out of the tank and into the system. b. At least one dispensing member configured to dispense cryogenic fluid to the outside of the system, and optionally, at least during operation of the system, held in an elevated position relative to the tank engagement member; and c. A vaporizer module fluidly connected to the tank engagement member and the at least one dispensing member, and including a boiling chamber having a liquid receiving portion and a gas releasing portion, the liquid receiving portion being configured to receive a liquid cryogenic fluid, the gas releasing portion allowing the liquid cryogenic fluid positioned in the gas releasing portion to boil into a gaseous cryogenic fluid, and facilitating the non-pressurized delivery of the gaseous cryogenic fluid toward the at least one dispensing member, wherein the boiling chamber includes: i. A liquid receiving container, which constitutes the liquid receiving part, the liquid receiving container including a cryogenic liquid inlet and a liquid outlet in fluid communication with the tank joining member; ii. A gas release container, the gas release container constituting the gas release portion, the gas release container including a fluid inlet in fluid communication with the liquid outlet of the liquid receiving container and a gas outlet in fluid communication with the at least one dispensing member; and iii. A flow-blocking member configured to selectively prevent fluid communication between the liquid receiving container and the gas releasing container when a predetermined amount of liquid is contained within the gas releasing container.

2. The cryogenic fluid delivery system of claim 1, wherein the flow blocking member comprises a float member located within the gas release container and a plug member located within the liquid receiving container and connected to the float member by a connecting element, wherein the plug member is configured to have a shape suitable for plugging the liquid outlet of the liquid receiving container.

3. The cryogenic fluid delivery system of claim 2, wherein the liquid receiving container is located adjacent to and below the gas releasing container, and the liquid outlet of the liquid receiving container is located adjacent to and below the fluid inlet of the gas releasing container.

4. The cryogenic fluid delivery system of claim 3, wherein the connecting element is a metal rod extending from the float member through the fluid inlet of the gas release container and the liquid outlet of the liquid receiving container to the plug member.

5. The cryogenic fluid transport system according to any one of claims 2 to 4, wherein the float component is configured to have a size and density sufficient to allow the float component to float on a certain type of cryogenic fluid stored in the cryogenic fluid tank.

6. The cryogenic fluid transport system of claim 5, wherein the float is formed of a material suitable for working with cryogenic fluids.

7. The cryogenic fluid transport system of claim 6, wherein the float is formed of polyoxymethylene.

8. The cryogenic fluid transport system of claim 2, wherein the float component is configured to have a cross-section similar to but smaller than that of the gas release container.

9. The cryogenic fluid transport system of claim 1, wherein the cryogenic fluid transport system is exposed to ambient temperature.

10. The cryogenic fluid transport system of claim 1, wherein the cryogenic fluid transport system is at least partially not insulated from the environment.

11. The cryogenic fluid transport system according to claim 1, wherein the cryogenic fluid is a non-toxic cryogenic liquid.

12. The cryogenic fluid transport system according to claim 11, wherein the cryogenic fluid is liquid nitrogen.

13. The cryogenic fluid transport system according to claim 11, wherein the cryogenic fluid is liquid air.

14. An air conditioning device for use with a cryogenic fluid tank, comprising a housing having: a tank receiving portion located at a bottom end of the housing, the tank receiving portion being configured to receive a cryogenic fluid tank; a hollow neck extending vertically upward from the tank receiving portion and configured to receive therein at least a portion of the vaporizer module of the cryogenic fluid delivery system according to any one of claims 1 to 13; and a dispensing portion located at an upper portion of the housing, the dispensing portion being configured to receive the at least one dispensing member of the cryogenic fluid delivery system.

15. The air conditioning device of claim 14, wherein the hollow neck includes an extension mechanism operable to increase and decrease the length of the hollow neck, and correspondingly increase and decrease the distance between the can receiving portion and the dispensing portion.

16. The air conditioning device according to claim 14 or claim 15, wherein the hollow neck is much narrower than the tank receiving portion and the dispensing portion.

17. The air conditioning device of claim 14, wherein the dispensing portion is configured to be positioned at a distance of 1 to 3 meters above the tank receiving portion at least during operation of the air conditioning device.

18. The air conditioning apparatus of claim 14, wherein the air conditioning apparatus further comprises a scale configured to measure the amount of cryogenic fluid stored in the cryogenic fluid tank.

19. The air conditioning apparatus of claim 14, wherein the air conditioning apparatus further comprises a cryogenic gas saving module configured to transfer cold generated around the boiling chamber due to the operation of the boiling chamber to the outside of the housing, while preventing cryogenic fluid from flowing toward the boiling chamber.

20. The air conditioning device according to claim 19, wherein the low-temperature gas saving module comprises: A cryogenic valve that interconnects the tank connection member and the boiling chamber, and is configured to prevent fluid flow between the tank connection member and the boiling chamber when a predetermined amount of cold accumulates around the boiling chamber. and a convection member configured to generate an airflow for transferring the accumulated cold to the outside of the housing.

21. The air conditioning device of claim 20, wherein the cryogenic valve is normally open and configured to close when the convection member is electrically operated.

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