COOLING SYSTEM
A system for cooling a product includes an enclosed environment having an outlet, an inlet, and a temperature in a first temperature range. An antechamber is at least partially surrounding the inlet of the enclosed environment and has a temperature in a second temperature range. A conveyor system includes a conveyor path extending between the inlet and the outlet of the enclosed environment and provides a spiral travel path. The temperature range of the enclosed environment is configured to cool the product before the product exits through the outlet of the enclosed environment.
The priority benefit of U.S. Provisional Appl. No. 63/120,057, filed Dec. 1, 2020, is hereby claimed and the entire contents are incorporated herein by reference.
FIELD OF DISCLOSUREThe present disclosure generally relates to a cooling environment, and more particularly, to a system for cooling or freezing products in a cooling environment.
BACKGROUNDMany products are sold to customers in a frozen condition or delivered with frozen gel packs. The process of freezing a product varies in complexity and cost, depending on the properties and quantity of product being frozen and equipment used for freezing the product. Typically, after a product such as, for example, pizza dough, is frozen, the frozen dough is stored in a freezer until the dough is shipped in bulk to a different location, via refrigerated freight or truck, where the frozen dough is sold or distributed to a customer. If a single frozen dough product is shipped to a customer, the shipment typically includes a frozen gel pack to keep that frozen product at low temperatures during transport.
As the need for delivering refrigerated and frozen products directly to customers increases, so too does the need for manufacturing gel packs that accompany those deliveries. Gel packs are often used for shipping non-frozen and frozen products because they have long freeze times and are safe for shipment alongside produce. Freezing gel packs in bulk (like freezing pizza dough in the example above), however, may be time consuming and costly. For example, freezing gel packs in bulk may take days and even up to weeks to completely freeze. Additionally, gel packs are bulky and heavy when frozen en masse, occupying more space for storage and shipping, which increases overall costs for providing frozen gel packs. Furthermore, shipping frozen gel packs requires a heightened level of care because an outer packaging of a gel pack may be ruptured if not handled carefully, thereby spilling the contents and damaging the product and potentially other products in its vicinity when defrosted.
SUMMARYIn accordance with a first exemplary aspect of the present disclosure, a system for cooling a product may include an enclosed environment having an outlet, an inlet, and a temperature in a first temperature range. An antechamber may at least partially surround the inlet of the enclosed environment. The antechamber may have a temperature in a second temperature range. A conveyor system may include a conveyor path extending between the inlet and the outlet of the enclosed environment and may provide a spiral travel path. The temperature range of the enclosed environment may be configured to cool the product before the product exits through the outlet of the enclosed environment.
In accordance with a second exemplary aspect of the present disclosure, a system for cooling a product may include an enclosed environment having an inlet and an outlet. A conveyor system may include a conveyor path extending between the inlet and the outlet of the enclosed environment. The conveyor path may include an inlet portion, an outlet portion, and a spiral portion connecting the inlet and outlet portions. The inlet portion may be adjacent to the inlet of the enclosed environment and the outlet portion may be adjacent to the outlet of the enclosed environment. The spiral portion may define an ascending spiral travel path to transport a product from the inlet to the outlet of the enclosed environment.
In accordance with a third exemplary aspect of the present disclosure, a method of cooling a product may include placing a product in an antechamber connected to an inlet of an enclosed environment. The enclosed environment may have the inlet, an outlet, and a conveyor disposed in the enclosed environment and extending from the inlet to the outlet. The method may include transporting the product from the antechamber into the enclosed environment, and cooling the product as the product travels on a spiral travel path between the inlet and the outlet. Further, the method may include delivering a cooled product through the outlet of the enclosed environment.
In further accordance with any one or more of the foregoing first, second, and third exemplary aspects, an accessible cooling environment may include one or more of the following forms.
In one preferred form, the conveyor path may include an inlet portion disposed at a first height.
In one preferred form, the conveyor path may include an outlet portion disposed at a second height greater than the first height.
In another preferred form, the conveyor path may include an inlet portion at least partially disposed in the antechamber.
In another preferred form, the conveyor path may extend through the inlet of the enclosed environment.
In another preferred form, the conveyor path may move in an ascending spiral.
In another preferred form, the antechamber may include a pneumatic door controllable to open and close to receive a product before the product enters the enclosed environment.
In another preferred form, a refrigeration control system may control the temperature in the first temperature range and the temperature in the second temperature range.
In another preferred form, a conveyor control system may control the speed of the conveyor path.
In another preferred form, an antechamber may be coupled to an exterior wall of the enclosed environment.
In another preferred form, the antechamber may at least partially surround the inlet of the enclosed environment.
In another preferred form, the inlet portion of the conveyor path may be at least partially disposed in the antechamber.
In another preferred form, the inlet portion may extend through the inlet of the enclosed environment.
In another preferred form, the enclosed environment may have a temperature in a first temperature range.
In another preferred form, the antechamber may have a temperature in a second temperature range.
In another preferred form, the method may include setting, via a control system, a first temperature in a first temperature range of the enclosed environment.
In another preferred form, the method may include setting a second temperature in a second temperature range of the antechamber.
In another preferred form, cooling the product may include transporting the product between the inlet and the outlet in an ascending spiral travel path.
In another preferred form, placing a product in an antechamber may include automatically opening a door to the antechamber to receive the product and immediately closing the door after receiving the product.
In another preferred form, transporting the product may include conveying the product via a conveyor belt from the antechamber to the enclosed environment.
The cooling system of the present disclosure provides a rapid, on-demand solution to cooling or freezing products. Generally speaking, the cooling system as described herein receives a plurality of products in an unfrozen state and delivers the plurality of products in a refrigerated or frozen state. For simplicity, the cooling systems 100, 300 are described as cooling systems 100, 300 to produce multiple frozen products. However, the systems 100, 300 may also be used for cooling one or more products that do not reach a frozen state, but a cooled state, near-freezing state, or partially solid state.
Turning first to
As illustrated in
Turning now in more detail to the cooling and temperature controls of the cooling system 100, the refrigeration system 108 is at least partially disposed within the interior space 122 of the enclosed environment 104 and adjacent to the conveyor system 112. The refrigeration system 108 cools the interior space 122 to freezing temperatures so that a product freezes before exiting the enclosed environment 104. The refrigeration system 108 includes a condenser (not illustrated) and an evaporator 164 and is controlled by a refrigeration control system. The refrigeration system 108 may maintain a temperature of the interior space 122 of the enclosed environment 104 in a temperature range of approximately negative 40 degrees Fahrenheit to approximately 30 degrees Fahrenheit, depending on the application. While the evaporator 164 is disposed in the interior space 122, the condenser may be disposed outside of the interior space 122 of the enclosed environment 104.
The control system is coupled to the refrigeration system 108 to monitor, analyze, and control the refrigeration system 108. The control system, which may be a smart refrigeration control system and located in the condenser, may be operated remotely or locally to change temperature, refrigeration cycle settings, or control and/or operate other functions of the refrigeration system 108. The control system may be communicatively coupled to one or more sensors attached to the evaporator 164 or disposed in other areas in the interior space 122 of the enclosed environment 104 to monitor the evaporator 164 and temperature at various locations within the cooling system 100. The control system may also include one or more processors and a memory for storing executable instructions that enables automatic operation of a defrost cycle and/or other features or programs of the refrigeration system 108. The condenser may be disposed outside of the enclosed environment 104 on the ground or on the roof 148 of the enclosed environment 104. In other examples, the refrigeration and control systems may be arranged differently. For example, the condenser and the control system may be mostly externally disposed relative to the enclosed environment 104. The evaporator 164 may be mostly disposed in the interior space 122 of the enclosed environment 104, partially disposed in the interior space 122 of the enclosed environment 104, or attached to any of the walls 124, 128, 132, 136, roof 148, floor 152, or doors 156 of the cooling system 100.
The conveyor system 112 of
The motor 190 of
As shown in
Now turning to the exterior of the cooling system 100, the antechamber 140 and receiving chute 144 will now be described in more detail. The antechamber 140 and receiving chute 144 are attached to an exterior wall or surface of the enclosed environment 104 to provide temperature transitions between ambient and the freezing temperatures of the enclosed environment 104. The antechamber 140 and receiving chute 144 surround the inlet 116 and outlet 120 of the enclosed environment 104, respectively, and are aligned with the locations of the inlet and outlet portions 196, 202 of the conveyor path 182. The cooling system 100 of the present disclosure is configured to reduce energy transfer at the inlet 116 by controlling a temperature of the enclosed environment 104 in a first temperature range and a temperature of the antechamber 140 in a second temperature range. The second temperature range is approximately 20 degrees Fahrenheit above the temperature of the enclosed environment 104. The temperature in the antechamber 140 is influenced by one or more door heaters embedded beneath the door frames.
The antechamber 140 and receiving chute 144 may be constructed using similar insulative materials as the walls 124, 128, 132, 136, roof 148, and floor 152 of the enclosed environment 104. Both the antechamber 140 and receiving chute 144 of the illustrated system 100 protrude from one of the walls 132 of the enclosed environment 104. The antechamber 140 and/or the receiving chute 144 are constructed separately from the enclosed environment 104 and later attached, coupled, or otherwise connected to the enclosed environment 104. However, in other examples, one or both of the antechamber 140 and receiving chute 144 is structurally integrated with the overall structure of the enclosed environment 104. In all examples, the antechamber 140 may provide a separate, but connected environment relative to the enclosed environment 104 of the cooling system 100.
To reduce heat and vapor transfer at the inlet 116 of the enclosed environment 104, a pneumatic door 216 (
The cooling system 100 may be designed to receive liquid-filled gel packs at the antechamber 140 and deliver cooled or frozen gel packs at the chute 144. As shown in
As shown in
The antechamber 140 and receiving chute 144 of
As mentioned above, the cooling system 100 may also include a control system 218 for controlling the speed and direction of the movement of the conveyor system 112. The control system 218 is located within an electrical panel attached to the enclosed environment 104. The control system 218 may be locally or remotely accessed to increase and decrease the speed of the one or more conveyor belts of the conveyor system 112, start and stop movement of the conveyor belts, and even switch direction of the conveyor belts. For example, the speed of the conveyor path 182 may be changed depending on the time required to freeze a product. In operation, the one or more conveyor belts of the conveyor path 182 moves in a direction from the inlet 116 and toward the interior space 122 of the enclosed environment 104. The control system 218 may reverse the direction of the conveyor path 182 as needed. Additionally, the control system 218 may control access to the diverter chute 194 based on the product being processed by the cooling system 100. For example, the control system 218 may operate a number of freezing cycle programs stored in the memory of the processor. One freezing cycle program, for example, may be pre-programmed for processing a certain product. The program may be customized for freezing the particular product by having pre-stored settings related to conveyor speed, cooling temperature, and number of freezing cycles. The control system 218 can then operate the diverter chute 194 such that the products are diverted to the chute 194 for additional freezing cycles. The diverter chute 194 may be set up (e.g., via a program operated by a control system) according to number of products being processed so that each product being processed will run through the required number of cycles. After the last cycle is complete, the program will automatically remove the diverter chute 194 from the conveyor path 182 (i.e., by removing and diverting diverter arm in the conveyor path 182), permitting the frozen products to exit the enclosed environment 104.
The cooling system 100 may be configured to accommodate a particular space, environment, or to best suit the requirements of the product. In one example, the enclosed environment 104 may have a length (i.e., extending between the first and second side walls 124, 128) in a range of approximately 9 feet to approximately 10 feet, a height (i.e., extending between the floor 152 and the roof 148) in a range of approximately 9 feet to approximately 10 feet, and a width (i.e., measured between the third and four side walls 132, 136) in a range of approximately 17 feet to approximately 18 feet. However, in other exemplary enclosed environments, the construction and dimensions may vary. For example, the side walls 124, 128, 132, 136 may include a plurality connected insulated panels depending on the desired size and shape of the enclosed environment 104. In other words, the enclosed environment 104 may be customized based on the size of the spiral structure 186, freezing capacity, refrigeration system 108, conveyor system 112, and other factors of the cooling system 100. Additionally, the temperature settings of the system 100 may be customized to rapidly cool a product instead of freezing the product. The system 100 may be used for either rapidly cooling or rapidly freezing a product.
Turning now to
Turning first to
Operation of the second exemplary cooling system 300 of
The method 500 includes a first step 510 of placing a freezable product 301 into the antechamber 340 of the cooling system 300. Placing the freezable product 301 into the antechamber 340 may include automatically opening the door 416 to the antechamber 340 to receive the freezable product 301 and immediately closing the door 416 after the freezable product 301 is disposed in the antechamber 340. The method 500 includes a step 520 of transporting the freezable product 301A into the enclosed environment 304. In the example shown in
The method 500 further includes a step 530 of freezing the freezable product 301C, 301 D as the freezable product 301C, 301 D travels on the spiral travel path 398 in the enclosed environment 304. The freezable product 301C, 301 D travels in an ascending spiral as the refrigeration system 308 blows cool air toward the spiral structure 386. In some cases, the product is frozen by the time it reaches its highest point on the conveyor path 382. Finally, the method 500 includes a step 540 of delivering a frozen product 301E through the outlet 320 of the enclosed environment 304. The receiving chute 344 receives the frozen product 301E and directs the product through the door 405 and into the storage bin 350. The method 500 may also include setting, via a control system 418, a first temperature of the enclosed environment 304 and a second temperature of the antechamber 340. A higher temperature in the antechamber 340 and exit chute 344 may be desired when condensation and ice form from vapor entering the enclosed environment 304 from the outside environment, which impacts the operation of the conveyor belt and/or control system.
The cooling systems 100, 300 of the present disclosure may advantageously provide on-demand solutions to cooling or freezing products by packaging and cooling a product in a single location. Each of the cooling systems 100, 300 disclosed herein provides a simple, insulated structure that conveniently receives an unfrozen product and delivers a frozen or near-frozen product on the same side of the structure. In other examples, the inlet 116, 316 and outlet 120, 320 of the cooling systems 100, 300 may be located on different sides of the enclosed environment 104, 304 for other convenient purposes, as well. The insulated structure, or enclosed environment 104, 304 as described herein, is kept at cooling or freezing temperatures to sufficiently cool or freeze a product as the product ascends the spiral path 198, 398 before exiting the enclosed environment 104, 304. By providing an environmentally-controlled antechamber 140, 340 at the inlet 116, 316 of the enclosed environment 104, 304, the temperature of the enclosed environment 104, 304 can remain at lower temperatures and the refrigeration system 108, 308 efficiently runs on less energy at the lower temperatures. Additionally, the antechamber 140, 340 reduces the accumulation of moisture at the inlet 116, 316 and the evaporator 164, 364, thereby limiting instances of ice build-up across the inlet 116, 316 and on the coils of the evaporator 164, 364.
Preferred embodiments of this invention are described herein, including the best mode or modes known to the inventors for carrying out the invention. Although numerous examples are shown and described herein, those of skill in the art will readily understand that details of the various embodiments need not be mutually exclusive. Instead, those of skill in the art upon reading the teachings herein should be able to combine one or more features of one embodiment with one or more features of the remaining embodiments. Further, it also should be understood that the illustrated embodiments are exemplary only, and should not be taken as limiting the scope of the invention. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the aspects of the exemplary embodiment or embodiments of the invention, and do not pose a limitation on the scope of the invention. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.
Claims
1. A system for cooling a product comprising:
- an enclosed environment having an outlet, an inlet, and a temperature in a first temperature range;
- an antechamber at least partially surrounding the inlet of the enclosed environment, the antechamber having a temperature in a second temperature range;
- a conveyor system including a conveyor path extending between the inlet and the outlet of the enclosed environment and providing a spiral travel path; and
- wherein the temperature range of the enclosed environment is configured to cool the product before the product exits through the outlet of the enclosed environment.
2. The system of claim 1, wherein the conveyor path includes an inlet portion disposed at a first height and an outlet portion disposed at a second height greater than the first height.
3. The system of claim 1, wherein the conveyor path includes an inlet portion at least partially disposed in the antechamber and extending through the inlet of the enclosed environment.
4. The system of claim 1, wherein the conveyor path moves in an ascending spiral.
5. The system of claim 1, wherein the antechamber includes a pneumatic door controllable to open and close to receive a product before the product enters the enclosed environment.
6. The system of claim 1, further comprising a refrigeration control system to control the temperature in the first temperature range and the temperature in the second temperature range.
7. The system of claim 1, further comprising a conveyor control system to control the speed of the conveyor path.
8. A system for cooling a product comprising:
- an enclosed environment having an inlet and an outlet; and
- a conveyor system including a conveyor path extending between the inlet and the outlet of the enclosed environment, the conveyor path including an inlet portion, an outlet portion, and a spiral portion connecting the inlet and outlet portions, the inlet portion being adjacent to the inlet of the enclosed environment and the outlet portion adjacent to the outlet of the enclosed environment;
- wherein the spiral portion defines an ascending spiral travel path to transport a product from the inlet to the outlet of the enclosed environment.
9. The system of claim 8, further comprising an antechamber coupled to an exterior wall of the enclosed environment and at least partially surrounding the inlet of the enclosed environment.
10. The system of claim 9, wherein the antechamber includes a pneumatic door controllable to open and close to receive a product before the product enters the enclosed environment.
11. The system of claim 9, wherein the inlet portion of the conveyor path is at least partially disposed in the antechamber and extends through the inlet of the enclosed environment.
12. The system of claim 9, wherein the enclosed environment has a temperature in a first temperature range and the antechamber has a temperature in a second temperature range.
13. The system of claim 10, further comprising a refrigeration control system to control the temperature in the first temperature range and the temperature in the second temperature range.
14. The system of claim 8, further comprising a conveyor control system to control the speed of the conveyor path.
15. The system of claim 8, wherein the inlet portion of the conveyor path is disposed at a first height and the outlet portion of the conveyor path is disposed at a second height greater than the first height.
16. A method of cooling a product comprising:
- placing a product in an antechamber connected to an inlet of an enclosed environment, the enclosed environment having the inlet, an outlet, and a conveyor disposed in the enclosed environment and extending from the inlet to the outlet;
- transporting the product from the antechamber into the enclosed environment;
- cooling the product as the product travels on a spiral travel path between the inlet and the outlet;
- delivering a cooled product through the outlet of the enclosed environment.
17. The method of claim 16, setting, via a control system, a first temperature in a first temperature range of the enclosed environment and a second temperature in a second temperature range of the antechamber.
18. The method of claim 16, wherein cooling the product includes transporting the product between the inlet and the outlet in an ascending spiral travel path.
19. The method of claim 16, wherein placing a product in an antechamber includes automatically opening a door to the antechamber to receive the product and immediately closing the door after receiving the product.
20. The method of claim 16, wherein transporting the product includes conveying the product via a conveyor belt from the antechamber to the enclosed environment.
Type: Application
Filed: Nov 30, 2021
Publication Date: Jun 2, 2022
Inventors: James M. Costanza (Flower Mound, TX), Rahul Sharma (Fort Worth, TX), Michael Cline (Azle, TX)
Application Number: 17/538,266