Drinkable ice bank system and method

Abstract

The evaporator may include a pressure vessel and an evaporating device. The evaporating device may be at least partially enclosed within the pressure vessel and configured to guide refrigerant through the pressure vessel. The evaporator may include at least one fluid guiding device, which is at least partially enclosed within the pressure vessel. The at least one fluid guiding device is configured to guide drinking fluid around the evaporating device to facilitate heat exchange. The evaporating device may include an evaporating coil having a first portion, a second portion, and a third portion. The second portion may be located outside the first portion, and the third portion may be radially located outside the second portion. The pressure vessel may include an inlet and an outlet in fluid connection with the evaporating coil.

Description

Cross-reference to related applications

[0001] This application claims the benefit and priority of U.S. nonprovisional patent application No. 18 / 973,710, filed December 9, 2024, entitled "Drinkable Ice Bank Systems and Methods," and also claims the benefit and priority of U.S. provisional patent application No. 63 / 607,263, filed December 7, 2023, entitled "Drinkable Ice Bank Systems and Methods," the disclosure of which is hereby incorporated herein by reference in its entirety. Technical Field

[0002] The systems and methods of this invention relate to refrigeration and cooling systems for beverage dispensers. Background Technology

[0003] Refrigeration and cooling systems are used in beverage dispensers to cool the water and syrup used for beverage dispensing. Conventional refrigeration and cooling systems can include multiple components and have a relatively large footprint within the beverage dispenser. For example, a conventional refrigeration and cooling system can occupy multiple shelves within the beverage dispenser. Additionally, conventional refrigeration and cooling systems may have a relatively small capacity for chilled water or syrup (e.g., the volume of water or syrup that has been cooled and can be dispensed as needed). Conventional refrigeration and cooling systems typically use a two-stage process with separate beverage coils and evaporator coils. An intermediate working fluid exchanges heat between the beverage coil and the evaporator coil to prevent the beverage coil from freezing and damaging the system. Two-stage systems are bulky, expensive to produce and maintain, and inefficient.

[0004] Therefore, there is a long-standing but unresolved need for a compact, high-capacity, and efficient refrigeration system for use in beverage dispensers. Summary of the Invention

[0005] Briefly described, and according to one embodiment, several aspects of this disclosure generally relate to a potable ice storage system. The disclosed potable ice storage system may include an evaporator coil. A refrigerant or working fluid may be pumped through the evaporator coil or other evaporator assembly (e.g., evaporator plate, evaporator fins, heat pipe). The refrigerant or working fluid may include any refrigerant capable of undergoing a phase change to facilitate heat exchange. As those skilled in the art will understand, the refrigerant may be pumped into the evaporator coil at low temperatures and low pressures. The evaporator coil may be submerged in water in a drinking water reservoir (hereinafter referred to as the "Reservoir"). Water in the drinking water reservoir may be continuously pumped through the Reservoir and over and around the evaporator coil. As the water flows over the evaporator coil, heat from the water is transferred to the refrigerant in the evaporator coil, thereby cooling the water. The water pumped through the Reservoir may be distributed, pumped into a carbonation unit, or mixed for use in cooling beverages.

[0006] Water can be continuously pumped around the evaporator coil via a recirculation pump. As those skilled in the art will understand, ice can form around the evaporator coil. Continuous pumping of water allows the formation of channels through the ice, enabling water to flow continuously around the evaporator coil without completely freezing. Continuous pumping of water via the recirculation path enhances heat transfer between the water and the evaporator coil and reduces recovery time in the event of an interruption. The temperature and pressure of the water can be monitored during recirculation via thermometers and other sensors. In some other embodiments, water may not be continuously pumped. In these other embodiments, some ice may form on the evaporator coil but should not impede water flow through the ice reservoir. The ice reservoir may include multiple baffles, fins, or other flow guiding devices to guide water flow through the reservoir. Baffles may include alternating openings at the bottom or top (e.g., the innermost baffle has an opening at the bottom, and adjacent baffles have an opening at the top). Alternating baffle openings allow for maximum contact between the water and the evaporator coil. In some other embodiments, the evaporation device (e.g., evaporator plate, heat pipe) may act as a fluid guiding device.

[0007] Immersing the evaporator coil in the drinking water reservoir eliminates the two-stage processes (e.g., beverage coil and intermediate working fluid) present in evaporators used in conventional cooler systems and improves heat transfer between the refrigerant and drinking water in the evaporator coil. Removing the beverage coil and intermediate working fluid from the disclosed potable ice storage system allows for a smaller footprint and / or a larger cooling water capacity. For example, the volume of potable cooling water in a potable ice storage system can be several times larger than in a conventional cooler system. As another example, the volume of refrigerant in a potable ice storage system can be less than half the volume of refrigerant present in a conventional cooler system. Removing the beverage coil, intermediate working fluid, and other components present in conventional cooler systems reduces the production cost and footprint of potable ice storage systems. Furthermore, the removal of the beverage coil and intermediate working fluid increases the flexibility of configuration options within the beverage dispenser. The removal of the beverage coil and intermediate working fluid increases the turbidity of the water, which improves heat exchange.

[0008] The above and other features of the disclosed systems and methods will be appreciated from the following detailed descriptions and drawings of various embodiments. Attached Figure Description

[0009] The accompanying drawings illustrate one or more embodiments and / or aspects of this disclosure and, together with the written description, serve to explain the principles of this disclosure. Where possible, throughout the drawings, the same reference numerals are used to refer to the same or similar elements of the embodiments, and wherein:

[0010] Figure 1A The illustration shows a potable ice storage evaporator coil according to different embodiments of the present disclosure.

[0011] Figure 1B The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0012] Figure 1C The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0013] Figure 1D The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0014] Figure 1E The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0015] Figure 1F The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0016] Figure 1G The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0017] Figure 2AThe illustration shows a cross-sectional view of a drinkable ice storage facility according to different embodiments of the present disclosure.

[0018] Figure 2B The illustration shows a cross-sectional view of a drinkable ice storage facility according to different embodiments of the present disclosure.

[0019] Figure 2C The illustration shows fins for a drinking water icebox according to different embodiments of the present disclosure.

[0020] Figure 3 The illustration shows a potable ice storage system according to different embodiments of the present disclosure.

[0021] Figure 4A The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0022] Figure 4B The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0023] Figure 4C The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0024] Figure 5A The illustration shows a potable icebox according to different embodiments of the present disclosure.

[0025] Figure 5B The illustration shows a potable icebox according to different embodiments of the present disclosure. Detailed Implementation

[0026] To facilitate an understanding of the principles of this disclosure, reference will now be made to the embodiments illustrated in the accompanying drawings, and these embodiments will be described using specific language. Nevertheless, it will be understood that this is not intended to limit the scope of the disclosure; any changes and further modifications to the described or illustrated embodiments, and any further application of the principles of the disclosure as set forth herein, are contemplated by one of ordinary skill in the art to which this disclosure pertains. All limitations of the scope should be determined by and expressed in the claims.

[0027] Whether a term is capitalized or not is not considered a limiting or restrictive element of its meaning. As used in this document, capitalized terms should have the same meaning as uncaptured terms, unless the context specifically indicates that a more restrictive meaning of the capitalized term is desired. However, capitalization or omission in the remainder of this document is not intended to impose a necessary restriction unless the context clearly indicates that such restriction is intended.

[0028] Now referring to the accompanying drawings, for the purpose of illustrating and explaining the basic processes and components of the disclosed system and process, see below. Figure 1A , Figure 1AAn exemplary drinkable ice storage 100 (hereinafter referred to as "ice storage 100") is illustrated. As will be understood and recognized, Figures 1A-1G and Figures 2A-2C The ice storage 100 shown Figures 4A-4C The ice storage unit shown is 500. Figure 5A and Figure 5B The ice storage 500 shown in the image and Figure 3 The drinkable ice storage system 300 shown is only one way or embodiment of the system, and other aspects are used according to different embodiments of the system.

[0029] The ice storage unit 100 may include an evaporator coil 103. The evaporator coil 103 may be a spiral coil. The evaporator coil 103 may include a triple spiral with three concentric spirals: an outer spiral 106, a middle spiral 109, and an inner spiral 112. The outer spiral 106 may be located at the outermost portion of the evaporator coil 103, while the inner spiral 112 may be located at the innermost portion of the evaporator coil 103 (e.g., positioned closest to the center of the evaporator coil 103). The middle spiral 109 may be located between the outer spiral 106 and the inner spiral 112. In some embodiments, the evaporator coil 103 may include any number of concentric spirals. As will be understood, each spiral (e.g., the outer spiral 106, the middle spiral 109, and the inner spiral 112) may include any number of twists (e.g., any number greater than one capable of being fitted into the ice storage unit 100).

[0030] The evaporator coil 103 can be a hollow tube or a pipe. The evaporator coil 103 can be hollow, allowing refrigerant (e.g., liquid, vapor, liquid-vapor mixture) to flow continuously through the outer spiral 106, the intermediate spiral 109, and the inner spiral 112. The evaporator coil 103 can be made of any conductive metal, including but not limited to stainless steel, carbon steel, copper, aluminum, and nickel-plated copper.

[0031] Refrigerant can be pumped through evaporator coil 103. The refrigerant can include any refrigerant or working fluid capable of phase change, including but not limited to hydrofluorocarbons, hydrocarbons, carbon dioxide, and hydrofluoroolefins. Refrigerant can enter or exit evaporator coil 103 via coil ports 115 and 118. Coil ports 115 and 118 can be located at opposite ends of evaporator coil 103. For example, coil port 115 can be located at the end of the outer spiral 106, and coil port 118 can be located at the end of the inner spiral 112. Refrigerant can be pumped through evaporator coil 103 in either direction. For example, refrigerant can be pumped into evaporator coil 103 via coil port 115, through the outer spiral 106, followed by the intermediate spiral 109 and the inner spiral 112, and then exit evaporator coil 103 via coil port 118. As another example, refrigerant can be pumped into evaporator coil 103 via coil port 118, through inner spiral 112, followed by intermediate spiral 109 and outer spiral 106, and then exit evaporator coil 103 via coil port 115. As those skilled in the art will understand, refrigerant can enter evaporator coil 103 at low temperatures.

[0032] Now refer to Figure 1B This illustration shows exemplary views of an ice storage unit 100 according to different embodiments of the present disclosure. An evaporator coil 103 may be mounted to a pressure vessel cover 124. The pressure vessel cover 124 maintains pressure in the reservoir or pressure vessel containing the evaporator coil 103. The pressure vessel cover 124 seals the reservoir containing the evaporator coil 103 to prevent contamination. The pressure vessel cover 124 may be compatible with drinking water reservoirs. The pressure vessel cover 124 may include multiple holes, including holes for coil ports 115 and 118 to protrude through the top of the pressure vessel cover 124. The pressure vessel cover 124 may be made of a robust metal, including but not limited to stainless steel, carbon steel, copper, aluminum, and nickel. The pressure vessel cover 124 may include a gasket or sealing ring for sealing the reservoir containing the evaporator coil 103.

[0033] Now refer to Figure 1CThis illustration shows exemplary views of an ice storage unit 100 according to different embodiments of the present disclosure. Baffles may be mounted inside a pressure vessel cover 124. As will be understood, the baffles may include fluid guiding means to direct water flow through the storage unit. The baffles may be cylindrical partitions mounted between multiple portions of an evaporator coil 103. The baffles may extend from the top to the bottom of the ice storage unit 100. For example, the baffles may be located at the center of the evaporator coil 103 (e.g., at the center of the inner spiral 112), between the inner spiral 112 and the intermediate spiral 109, between the intermediate spiral 109 and the outer spiral 106, and on the exterior of the evaporator coil 103 (e.g., outside the edge of the outer spiral 106). Multiple baffles may be mounted between multiple portions of the evaporator coil 103 to direct water flow around and above the exterior of the evaporator coil 103. The ice storage unit 100 may include any number of baffles to direct water flow around the evaporator coil 103. For example, the ice storage unit 100 may include three baffles. The baffle can be made of robust and durable metals, including but not limited to stainless steel, carbon steel, copper, aluminum, plastics (e.g., HDPE, LDPE, PC, PET, PP) and nickel.

[0034] The first baffle (inner baffle 127) may be located in the center of the evaporator coil 103 (e.g., the center of the inner spiral 112). The inner baffle 127 may include an opening 130 at the bottom. The opening 130 may be an orifice or cutout at the bottom of the inner baffle 127. The span of the opening 130 may be up to half the diameter of the inner baffle 127 and up to 1 inch in height. The inner spiral 112 may pass through the opening 130 to connect to the coil port 118 at the pressure vessel cover 124.

[0035] Now refer to Figure 1D The diagram illustrates exemplary views of an ice storage 100 according to various embodiments of the present disclosure. A second baffle (intermediate baffle 133) may be located between the inner spire 112 and the intermediate spire 109. The intermediate baffle 133 may include an opening 136 at its top. The opening 136 may be a hole or cutout at the top of the intermediate baffle 133. The span of the opening 136 may be up to half the diameter of the intermediate baffle 133. The inner spire 112 may pass through the opening 136 to connect with the intermediate spire 109.

[0036] Now refer to Figure 1E The diagram illustrates exemplary views of an ice storage unit 100 according to various embodiments of the present disclosure. A third baffle (outer baffle 139) may be located between the intermediate auger 109 and the outer auger 106. The outer baffle 139 may include an opening 142 at its top. The opening 142 may be an aperture or cutout at the top of the outer baffle 139. The span of the opening 142 may be up to half the diameter of the outer baffle 139. The intermediate auger 109 may pass through the opening 142 to connect with the outer auger 106.

[0037] Now refer to Figure 1F This illustration shows exemplary views of an ice storage 100 according to different embodiments of the present disclosure. In some embodiments, one or more baffles (e.g., inner baffle 127, intermediate baffle 133, outer baffle 139) may include fins. For example, outer baffle 139 may include fins 142A-142E. Baffles may include any number of fins. For example, baffles may include fins between each twist in each helical member (e.g., outer helical member 106, intermediate helical member 109, inner helical member 112). Fins may include partitions extending vertically from the surface of the baffle.

[0038] Now refer to Figure 1G This illustration shows exemplary views of an ice storage 100 according to different embodiments of the present disclosure. Evaporator coils 103 and baffles (including an inner baffle 127, a middle baffle 133, and an outer baffle 139) may be housed within a drinking water reservoir or pressure vessel 145 (hereinafter referred to as "Reservoir 145"). Reservoir 145 may include a cylindrical reservoir having a diameter of approximately 6.5 inches and a height of approximately 7 inches. In some other embodiments, Reservoir 145 may include a rectangular reservoir. In some other embodiments, Reservoir 145 may include any width, height, and / or diameter dimensions to provide a sufficient volume of cooled drinking water. A pressure vessel cap 124 may be secured to the top of Reservoir 145 such that the pressure vessel cap 124 maintains appropriate pressure within Reservoir 145. The pressure vessel cap 124 may be secured or sealed to Reservoir 145 to prevent contamination of the reservoir's interior. For example, the pressure vessel cap 124 can be sealed to the reservoir 145 using a gasket or sealing ring and secured to the reservoir 145 with a plurality of bolts or screws. As another example, the pressure vessel cap 124 can be sealed to the reservoir 145 by ultrasonic welding or other joining processes. The reservoir 145 can be made of any material suitable for drinking water, including but not limited to stainless steel or acrylic.

[0039] Now refer to Figure 2A This diagram illustrates an exemplary cross-sectional view 200 of an ice storage 100 according to various embodiments of the present disclosure. A reservoir 145 may be filled with water. Evaporator coil 103 and baffles may be submerged in the water inside the reservoir 145. Water may enter and exit the reservoir 145 via water ports 148 and 151. Water ports 148 and 151 may be located on a pressure vessel cover 124. Water port 148 may be located at the center of the pressure vessel cover 124, allowing water to enter and exit the reservoir through an inner baffle 127. Water port 151 may be located at the edge of the pressure vessel cover 124, allowing water to enter and exit the reservoir from the outside of an outer baffle 139. As will be understood by those skilled in the art, water at room temperature or high temperature may enter the reservoir 145. For example, water having a temperature higher than the temperature of the refrigerant entering the evaporator coil 103 may enter the reservoir 145.

[0040] As illustrated by flow lines 203, 206, 209, and 212, water can enter reservoir 145, flow above and around evaporator coil 103 and baffles, and exit reservoir 145. Flow lines 203, 206, 209, and 212 are included for illustrative purposes, as will be understood by those skilled in the art. For example, as illustrated by flow line 203, water can enter reservoir 145 via water port 148 in the center of pressure vessel cover 124. Water can flow downward through the center of inner baffle 127 and through opening 130. After flowing through opening 130, water can flow upward between inner baffle 127 and intermediate baffle 133, as illustrated by flow line 206. As water flows upward between inner baffle 127 and intermediate baffle 133, water can pass above inner spiral member 112. As water flows above and around evaporator coil 103, heat from the water is transferred to evaporator coil 103 because the refrigerant in evaporator coil 103 is cooler than the water. After flowing between inner baffle 127 and intermediate baffle 133, water can flow through opening 136 and downward between intermediate baffle 133 and outer baffle 139, as illustrated by flow line 209. As water flows downward between intermediate baffle 133 and outer baffle 139, it can pass above intermediate spiral member 109. As water flows above intermediate spiral member 109, heat continues to be transferred from the water to evaporator coil 103. After flowing between intermediate baffle 133 and outer baffle 139, water can flow through opening 142 and downward between outer baffle 139 and the side of reservoir 145, as illustrated by flow line 212. As water flows downward between the outer baffle 139 and the side of the reservoir 145, it can pass over the outer spiral member 106. As the water flows over the outer spiral member 106, heat can continue to be transferred from the water to the evaporator coil 103. The water can exit the reservoir 145 via the water port 151 at the edge of the pressure vessel cover 124.

[0041] As those skilled in the art will understand, the direction of water flow can be reversed. For example, water can enter reservoir 145 through water port 151, flow downward between the side of reservoir 145 and outer baffle 139, flow downward between outer baffle 139 and intermediate baffle 133 through opening 142, flow upward between intermediate baffle 133 and inner baffle 127 through opening 136, flow upward through the center of inner baffle 127 through opening 130, and exit reservoir 145 through water port 148.

[0042] The alternating positions of openings 130, 136, and 142 maximize the contact between water and evaporator coil 103, and thus maximize heat transfer between them. Opening 130 may be located at the bottom of inner baffle 127, opening 136 may be located at the top of intermediate baffle 133, and opening 142 may be located at the bottom of outer baffle 139. The alternating positions of openings 130, 136, and 142 guide water to flow above evaporator coil 103 in alternating directions (e.g., upward or downward), which maximizes the contact between water and evaporator coil 103.

[0043] Now refer to Figure 2B This diagram illustrates an exemplary cross-sectional view 200 of an ice storage unit 100 according to various embodiments of the present disclosure. In some embodiments, baffles (e.g., inner baffle 127, intermediate baffle 133, outer baffle 139) may include fins. For example, outer baffle 139 may include fins 142A-142E located between each twist of outer spiral member 106. As another example, intermediate baffle 133 may include fins 152A-152E located between each twist of intermediate spiral member 109. As another example, outer baffle 139 may include fins 154A-154E located between each twist of inner spiral member 112. Although each baffle includes five fins in this exemplary view 200, each baffle may include any number of fins. For example, each baffle may include fins between each twist. The fins may guide water flow around and above evaporator coil 103.

[0044] Now refer to Figure 2C The illustration shows exemplary fins 250 and 260 of an ice storage unit 100 according to different embodiments of the present disclosure. Fins 250 and 260 may be spiral baffles mounted to baffles 127, 133, and 139. Fins 250 and 260 may be any flow guiding device capable of guiding water flow above and around the evaporator coil 103. Fins 250 and 260 may enhance heat exchange between water and refrigerant in the evaporator coil 103.

[0045] Now refer to Figure 3This diagram illustrates exemplary views of a potable ice storage evaporator system 300 (hereinafter referred to as "System 300") according to various embodiments of the present disclosure. As will be understood, the ice storage 100 may include an evaporator coil 103, a pressure vessel cover 124, baffles 127, 133, and 139, and a reservoir 145. In some embodiments, the ice storage 100 may include an evaporator. System 300 may include a recirculation pump 303. The recirculation pump 303 may be any pump capable of pumping water having a near-freezing temperature. The recirculation pump 303 may continuously pump water through the ice storage 100. As the water flows over the evaporator coil 103, ice may form around the exterior of the evaporator coil 103. Heat energy from the water may flow into the evaporator coil 103 to cool the water. Because the recirculation pump 303 may continuously pump water through the ice storage 100, water channels may be formed around the ice, which allows water to continue flowing through the ice storage 100. Continuous pumping by recirculation pump 303 can increase or maximize heat transfer between water and evaporator coil 103. Continuous pumping by recirculation pump 303 can minimize the amount of time required for system 300 to recover in the event of interruption or temperature rise.

[0046] The recirculation line (e.g., a pipe or conduit supplying the recirculation pump 303 from the ice storage 100) may include sensor 306. Sensor 306 may include any sensor for measuring the properties of water, including but not limited to thermometers, pressure sensors, level sensors, and ice sensors. Sensor 306 may monitor the water to ensure that it does not completely freeze around the evaporation coil 103. Sensor 306 may determine whether the water temperature is suitable for dispensing into a beverage. Sensor 306 may determine the amount, volume, or level of water in reservoir 145.

[0047] System 300 may include a water source 309. Water source 309 may be a water line in a residential or commercial building. Water source 309 may supply cold or hot water. For example, water source 309 may supply water at a temperature higher than the refrigerant in ice storage 100. Water source 309 may be connected to system 300 via pipes, tubes, or hoses.

[0048] System 300 may include a demand pump 312. Demand pump 312 can pump water out of ice storage 100 or into ice storage 100 to maintain appropriate pressure in reservoir 145 when beverage dispensing is required. Reservoir 145 may hold several liters of cooling water, so demand pump 312 can pump water out of reservoir 145 to make beverages or pump water into reservoir 145 to maintain appropriate pressure (e.g., threshold pressure). Demand pump 312 may be any pump capable of pumping water with a temperature close to freezing. Buffer tank 315 may be located before or after demand pump 312 to help maintain appropriate pressure in reservoir 145. When water is pumped out of ice storage 100, it may be pumped to destination 316, which may include a carbonation device, dispensing device, or mixing device (e.g., a device for mixing cooling water with syrup or flavoring additives).

[0049] System 300 may include a closed loop 317 comprising an ice storage 100, a compressor 318, a condenser 321, and a pressure reducer 324. Refrigerant may be encapsulated within the closed loop 317 so that it does not come into direct contact with water in system 300. As will be understood, components in the closed loop 317 (e.g., compressor 318, condenser 321, pressure reducer 324) may contribute to and / or result in a reduction in the temperature of the refrigerant so that when the refrigerant enters the ice storage 100, it is at a suitable temperature for heat exchange with water. In some other embodiments, alternative cooling systems, such as thermoelectric coolers and hot plates, may be used in place of the closed loop 317 and its components (e.g., compressor 318, condenser 321, pressure reducer 324) or in addition to the closed loop 317 and its components (e.g., compressor 318, condenser 321, pressure reducer 324).

[0050] The refrigerant can enter the ice storage 100 (e.g., evaporator coil 103) as a mixture of gas and liquid. Due to heat exchange with water in the reservoir 145, the refrigerant can exit the ice storage 100 (e.g., evaporator coil 103) as a gas. The compressor 318 increases the pressure and temperature of the refrigerant by compressing it. The refrigerant enters the compressor 318 in a gaseous state at low temperature and low pressure. The compressor 318 can compress the gaseous refrigerant to increase its temperature and pressure. The condenser 321 can convert the refrigerant from a gas or vapor back to a liquid, vapor, or liquid-vapor mixture. By converting the refrigerant from a gas to a liquid, the condenser 321 allows the refrigerant to release the heat absorbed from the water in the ice storage 100. The pressure reducer 324 reduces the pressure of the refrigerant before it enters the ice storage 100. By reducing the pressure of the refrigerant, the pressure reducer 324 reduces the temperature of the refrigerant, allowing it to enter the ice storage 100 as a mixture of gas and liquid.

[0051] Now refer to Figure 4AThe illustration shows exemplary views of an ice storage facility 400 according to different embodiments of the present disclosure. The ice storage facility 400 may include reference refractory materials. Figures 1A-1G , Figures 2A-2C as well as Figure 3 Any part or aspect of the discussion. As will be understood, Figures 1A-1G , Figures 2A-2C and Figure 3 An exemplary configuration of the ice storage 100 can be illustrated. The disclosed techniques include different aspects and / or different combinations of different configurations disclosed herein, even if a given combination is not explicitly illustrated or described herein. For example, the following references... Figures 4A-4C as well as Figure 5A and Figure 5B One or more of the exemplary configurations shown and described include references Figures 1A-1G , Figures 2A-2C and Figure 3 Some or all of the elements shown and described. As another example, the above regarding... Figures 1A-1G , Figures 2A-2C and Figure 3 One or more of the exemplary configurations shown and described include information about Figures 4A-4C as well as Figure 5A and Figure 5B Some or all of the elements shown and described.

[0052] Ice storage 400 may include a reservoir or pressure vessel 403 (“Reservoir 403”). For example, Reservoir 403 may include a rectangular or polygonal reservoir. Reservoir 403 may include two half-reservoirs 403A and 403B. Each half-reservoir (e.g., half-reservoir 403A or 403B) may form half of the reservoir. Half-reservoirs 403A and 403B may be joined in a clamshell configuration by any suitable method (e.g., screws, bolts, fasteners). Reservoir 403 may include an inlet 406 and an outlet 409. Water may enter reservoir 403 through inlet 406 for cooling, and cooled water may exit reservoir 403 through outlet 409. Reservoir 403 may include a refrigerant inlet 412 and a refrigerant outlet 415. Refrigerant may enter reservoir 403 through refrigerant inlet 412 and exit reservoir 403 through refrigerant outlet 415. In some embodiments, the refrigerant inlet 412 and refrigerant outlet 415 may be reversed (e.g., refrigerant may enter the reservoir 403 via refrigerant outlet 415 and exit the reservoir 403 via refrigerant inlet 412) to maximize heat exchange with water. Figure 3 The closed loop (e.g., compressor, condenser, pressure reducer) or some other cooling system (e.g., thermoelectric cooler and / or hot plate) described herein is fluidly connected.

[0053] Now refer to Figure 4B The illustration shows exemplary views of an ice storage 400 according to different embodiments of the present disclosure. The ice storage 400 may include one or more plate or flat evaporators 418. The plate evaporator 418 may include a flat, curved partition located inside the reservoir 403. The plate evaporator 418 may include embedded evaporator conduits 421 along the surface of the plate evaporator 418. For example, the evaporator conduits 421 may extend along the length of the plate evaporator 418, then rotate 180 degrees, and extend along the length of the plate evaporator 418 in a ring pattern or in a zigzag pattern (e.g., ox-plowing pattern) extending downwards along the width of the plate evaporator 418. In some embodiments, the plate evaporator 418 may include evaporator conduits 421 on both sides of each plate evaporator 418. Refrigerant may be pumped through the evaporator conduits 421 and exchange heat with water passing over and around the surface of the plate evaporator 418.

[0054] Now refer to Figure 4C The diagram illustrates exemplary views of an ice storage 400 according to different embodiments of the present disclosure. Each semi-storage unit (e.g., semi-storage unit 403A or 403B) may include a plate evaporator 418 in an arched or near-annular configuration. For example, the plate evaporator 418 may include two parallel plates 424 and 427 in an arched or near-annular configuration connected by a 180-degree elbow 430. The plate evaporator 418 may include one or more baffles 433 and 436. The baffles may include flat and / or curved partitions that extend perpendicularly to or parallel to the surface of the plate evaporator 418. For example, baffle 433 may extend perpendicularly from the surface of the plate evaporator 418, and baffle 436 may be positioned between parallel plates 424 and 427.

[0055] Now refer to Figure 5A The illustration shows exemplary views of an ice storage facility 500 according to different embodiments of the present disclosure. The ice storage facility 500 may include reference... Figures 1A-1G , Figures 2A-2C , Figure 3 as well as Figures 4A-4CAny part or aspect discussed. Ice storage 500 may include a reservoir or pressure vessel 503 (“Reservoir 503”). For example, Reservoir 503 may include a rectangular or polygonal reservoir. Reservoir 503 may include two half-reservoirs 503A and 503B. Each half-reservoir (e.g., half-reservoir 503A or 503B) may form half of the reservoir. Half-reservoirs 503A and 503B may be joined in a clamshell configuration by any suitable method (e.g., screws, bolts, fasteners). Reservoir 503 may include an inlet 506 and an outlet 509. Water may enter Reservoir 503 via inlet 506 for cooling, and cooled water may exit Reservoir 503 via outlet 509.

[0056] Ice storage 500 may include a thermoelectric cooler 512. The thermoelectric cooler 512 can lower the temperature of the refrigerant, allowing the refrigerant to exchange heat with the water in storage tank 503. As will be understood, the thermoelectric cooler may be used in place of or added to... Figure 3 The closed loop described herein (e.g., compressor, condenser, pressure reducer).

[0057] Now refer to Figure 5B The diagram illustrates exemplary views of an ice storage 500 according to various embodiments of the present disclosure. The ice storage 500 may include one or more heat pipes 515 configured in a plate-like shape. The heat pipes 515 facilitate heat exchange between water and the refrigerant by causing a phase change in the refrigerant at the surface of the heat pipes 515. A heat pipe 512 may be fluidly connected to a thermoelectric cooler 512. The ice storage 500 may include one or more baffles 427 and 433. For example, baffle 427 may include a flat and / or curved partition forming a concentric rectangle in half-reservoirs 503A and 503B. As another example, baffle 433 may extend vertically from baffle 427 and heat pipes 515.

[0058] While different aspects have been described within the context of preferred embodiments, those skilled in the art will readily identify other aspects, features, and methods of the claimed system from the description herein. Many implementations and adaptations, as well as numerous variations, modifications, and equivalent arrangements and methods of the disclosed and claimed systems are apparent from or reasonably suggested by this disclosure and its foregoing description without departing from the spirit or scope of the claims. Furthermore, any sequence and / or chronological order of the steps of the various processes described and claimed herein are those considered the best mode contemplated for performing the claimed system. It should also be understood that while the steps of different processes may be shown and described in a preferred sequence or chronological order, the steps of any such process are not limited to being performed in any particular sequence or order, and there is no specific indication of such a particular sequence or order to achieve a particular intended result. In most cases, the steps of such methods can be performed in a variety of different orders and sequences while still falling within the scope of the claimed system. Furthermore, some steps may be performed simultaneously, concurrently, or synchronously with other steps.

[0059] The aspects, features, and benefits of the claimed apparatus and methods will become apparent from the information disclosed in the exhibits and other applications, such as by reference. Variations and modifications to the disclosed systems and methods may be made without departing from the spirit and scope of the novel concept of this disclosure.

[0060] However, it should be understood that the scope of this disclosure is not intended to be limited by the information disclosed in these shown or incorporated by reference; any changes and further modifications to the described or shown embodiments, and any further application of the principles of this disclosure as shown herein, are to be considered as would normally occur to a person skilled in the art to which this disclosure relates.

[0061] The above description of exemplary embodiments is presented for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit the apparatus and methods used in these methods to the precise forms disclosed. Many modifications and variations are possible in accordance with the above teachings.

[0062] These embodiments were chosen and described to explain the principles of using these devices and methods and their practical application, thereby enabling others skilled in the art to utilize the devices and methods, as well as different embodiments with various modifications suitable for the specific intended use. Alternative embodiments will be apparent to those skilled in the art to which the devices and methods of the present invention pertain without departing from the spirit and scope of the invention. Therefore, the scope of the devices and methods of use of the present invention is defined by the appended claims, rather than by the foregoing description and the exemplary embodiments described therein. While a threshold is discussed herein as being satisfied when a threshold is exceeded, the system may determine that a threshold is satisfied or exceeded when a value is satisfied.

[0063] Clause 1. An evaporator comprising: a pressure vessel; an evaporation device at least partially enclosed within the pressure vessel, the evaporation device being configured to guide refrigerant through the pressure vessel; and at least one fluid guiding device at least partially enclosed within the pressure vessel, the at least one fluid guiding device being configured to guide drinking fluid around the evaporation device to facilitate heat exchange.

[0064] Clause 2. An evaporator according to Clause 1, wherein the evaporation unit includes an evaporation coil.

[0065] Clause 3. The evaporator according to Clause 2, wherein the evaporation coil comprises a first part, a second part and a third part, wherein the second part is radially located outside the first part and the third part is radially located outside the second part.

[0066] Clause 4. An evaporator according to Clause 2, wherein the evaporation coil is fluidly connected to the inlet and outlet of the pressure vessel.

[0067] Clause 5. An evaporator according to Clause 1, wherein the evaporation device includes at least one evaporator fin.

[0068] Clause 6. An evaporator according to Clause 1, wherein at least one fluid guiding device includes at least one baffle.

[0069] Clause 7. An evaporator according to Clause 6, wherein at least one baffle comprises a first baffle, a second baffle, and a third baffle, wherein the second baffle is radially located outside the first baffle, and the third baffle is radially located outside the second baffle.

[0070] Clause 8. An evaporator according to Clause 6, wherein at least one baffle includes at least one opening configured to guide drinking fluid.

[0071] Clause 9. An evaporator according to Clause 6, wherein at least one baffle comprises at least one fin.

[0072] Clause 10. An evaporator according to Clause 1, wherein at least one fluid guiding device comprises at least one fin.

[0073] Clause 11. An evaporator pursuant to Clause 1, wherein the evaporator does not include an intermediate working fluid between the refrigerant and the drinking fluid.

[0074] Clause 12. The evaporator according to Clause 1 also includes a pump configured to pump drinking fluid through a pressure vessel and over the evaporator to exchange heat energy with the refrigerant.

[0075] Clause 13. The evaporator according to Clause 1 further includes at least one temperature sensor configured to measure the temperature of the drinking fluid.

[0076] Clause 14. The evaporator according to Clause 1 also includes a pressure vessel cover configured to pressurize the pressure vessel.

[0077] Clause 15. An evaporator according to Clause 1, wherein the evaporator is configured to cool drinking fluid for dispensing.

[0078] Clause 16. An evaporator according to Clause 1, wherein drinking fluid is supplied to the evaporator via a demand pump.

[0079] Clause 17. An evaporator comprising: a pressure vessel; a spiral coil positioned within the pressure vessel and including an inner portion, an intermediate portion, and an outer portion, wherein the intermediate portion is radially located outside the inner portion and the outer portion is radially located outside the intermediate portion; a first baffle radially located inside the inner portion and including a first opening at a first lower end of the first baffle; a second baffle located between the inner portion and the intermediate portion and including a second opening at a second upper end of the second baffle; and a third baffle located between the intermediate portion and the outer portion and including a third opening at a third lower end of the third baffle.

[0080] Clause 18. An evaporator system comprising: an evaporator including: a pressure vessel including an inlet and an outlet; a spiral coil enclosed within the pressure vessel, the spiral coil including an inner portion, an intermediate portion, and an outer portion, wherein the intermediate portion is radially located outside the inner portion, and the outer portion is radially located outside the intermediate portion, and the spiral coil is configured to guide the flow of refrigerant; a first baffle radially positioned inside the inner portion and including a first opening at a first lower end of the first baffle; a second baffle positioned between the inner portion and the intermediate portion and including a second opening at a second upper end of the second baffle; and a third baffle positioned between the intermediate portion and the outer portion and including a third opening at a third lower end of the third baffle; and a pump connected to the evaporator via an inlet and an outlet, the pump being configured to force drinking fluid through the evaporator and over the spiral coil to exchange heat energy with the refrigerant.

[0081] Clause 19. The system pursuant to Clause 18 also includes a condenser loop configured to reduce the temperature of the refrigerant.

[0082] Clause 20. Systems pursuant to Clause 18 also include heat pipes configured to reduce the temperature of the refrigerant.

[0083] These and other aspects, features, and benefits of the claims will become clear from the detailed written description of the foregoing aspects in conjunction with the accompanying drawings, although variations and modifications may affect them without departing from the spirit and scope of the novel concept of this disclosure.

Claims

1. An evaporator, comprising: Pressure vessels; An evaporator, at least partially enclosed within the pressure vessel, the evaporator being configured to guide refrigerant through the pressure vessel; as well as At least one fluid guiding device, which is at least partially enclosed within the pressure vessel, is configured to guide drinking fluid around the evaporation device to facilitate heat exchange.

2. The evaporator of claim 1, wherein, The evaporation device includes an evaporation coil.

3. The evaporator of claim 2, wherein, The evaporator coil includes a first part, a second part, and a third part, wherein the second part is radially located outside the first part, and the third part is radially located outside the second part.

4. The evaporator of claim 2, wherein, The evaporation coil is fluidly connected to the inlet and outlet of the pressure vessel.

5. The evaporator according to claim 1, wherein, The evaporation device includes at least one evaporator fin.

6. The evaporator of claim 1, wherein, The at least one fluid guiding device includes at least one baffle.

7. The evaporator of claim 6, wherein, The at least one baffle includes a first baffle, a second baffle, and a third baffle, wherein the second baffle is radially located outside the first baffle, and the third baffle is radially located outside the second baffle.

8. The evaporator of claim 6, wherein, The at least one baffle includes at least one opening configured to guide the drinking fluid.

9. The evaporator of claim 6, wherein, The at least one baffle includes at least one fin.

10. The evaporator of claim 1, wherein, The at least one fluid guiding device includes at least one fin.

11. The evaporator of claim 1, wherein, The evaporator does not include the intermediate working fluid between the refrigerant and the drinking fluid.

12. The evaporator of claim 1, further comprising a pump configured to pump the drinking fluid through the pressure vessel and over the evaporator to exchange heat energy with the refrigerant.

13. The evaporator of claim 1, further comprising at least one temperature sensor configured to measure the temperature of the drinking fluid.

14. The evaporator of claim 1, further comprising a pressure vessel cover configured to pressurize the pressure vessel.

15. The evaporator of claim 1, wherein, The evaporator is configured to cool the drinking fluid for dispensing.

16. The evaporator of claim 1, wherein, The drinking fluid is supplied to the evaporator via a demand pump.

17. An evaporator comprising: Pressure vessels; A spiral coil is positioned within the pressure vessel and includes an inner portion, a middle portion, and an outer portion, wherein the middle portion is radially located outside the inner portion and the outer portion is radially located outside the middle portion. A first baffle is radially located inside the inner portion, and the first baffle includes a first opening located at a first lower end of the first baffle; A second baffle, positioned between the inner portion and the intermediate portion, and including a second opening at a second upper end of the second baffle; and A third baffle is positioned between the middle portion and the outer portion, and the third baffle includes a third opening at a third lower end of the third baffle.

18. An evaporator system comprising: Evaporator, the evaporator comprising: A pressure vessel, the pressure vessel including an inlet and an outlet; A spiral coil is enclosed inside the pressure vessel. The spiral coil includes an inner portion, a middle portion, and an outer portion, wherein the middle portion is radially located outside the inner portion and the outer portion is radially located outside the middle portion, and the spiral coil is configured to guide the flow of refrigerant. A first baffle is radially positioned inside the inner portion, and the first baffle includes a first opening at a first lower end of the first baffle. A second baffle, positioned between the inner portion and the intermediate portion, and including a second opening at a second upper end of the second baffle; and A third baffle, positioned between the middle portion and the outer portion, and including a third opening at a third lower end of the third baffle; and A pump, connected to the evaporator via the inlet and the outlet, is configured to force drinking fluid through the evaporator and over the spiral coil to exchange heat with the refrigerant.

19. The system of claim 18, further comprising a condenser loop configured to reduce the temperature of the refrigerant.

20. The system of claim 18 further includes a heat pipe configured to reduce the temperature of the refrigerant.

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