# US 2018/0320950 A1 · Freezer with Evaporative Condensing Arrangement > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0320950 A1 - Document ID: US20180320950A1 - Status: Published application - Kind: A1 - Application number: 16/038,156 - Filed: 2018-07-17 - Published: 2018-11-08 - Earliest claimed: 2015-01-28 - Assignees: Mgwide LLC - Applicants: Mgwide LLC - Inventors: Zhiming LI; Sui LIU; Yong ZHANG; Feng ZHANG - Web page: https://patentgrep.com/patent/US20180320950A1 ## CPC - F25D 17/067: {Evaporator fan units} - F25B 13/00: Compression machines, plants or systems, with reversible cycle (defrosting cycles F25B47/02) - F25B 39/02: Evaporators - F25B 39/04: Condensers - F25D 11/022: {with two or more evaporators} - F25D 17/062: {in household refrigerators} - F25D 23/003: {for cooling refrigerating machinery} - F28D 1/0477: {the conduits being bent in a serpentine or zig-zag} - F28F 3/025: {the means being corrugated, plate-like elements} - F25B 2339/041: of evaporative condensers - F25B 2400/06: Several compression cycles arranged in parallel - F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B) - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) ## Abstract A freezer includes a plurality of connecting pipes, a first freezer casing having a first storage compartment, a first compressor, a first evaporator received in the first freezer casing, and an evaporative condensing arrangement comprising an evaporative cooling unit. The evaporative cooling unit includes a first heat exchanger, a water pumping device, a water distribution apparatus, a water collection basin, and a cooling fan. A predetermined amount of refrigerant is guided to circulate between the first evaporator, the first compressor and the heat exchanger. A predetermined amount of cooling water is sprayed on the heat exchanger for performing heat exchange with the refrigerant flowing therethrough, wherein the cooling water is cooled by the ambient air which is drawn from an air inlet and flows out of the evaporative cooling unit through an air outlet. ## Claims ### Claim 1 A freezer, comprising: a plurality of connecting pipes; a first freezer casing having a first storage compartment; a first compressor; an first evaporator received in said first freezer casing, said first evaporator being connected to said first compressor through at least one of said connecting pipes; and an evaporative condensing arrangement comprising an evaporative cooling unit having an air inlet and an air outlet, said evaporative cooling unit being positioned in an outdoor environment and comprising: a first heat exchanger having a first heat exchanging inlet connected to said first compressor through at least one of said connecting pipes, and a first heat exchanging outlet connected to said first evaporator through at least one of said connecting pipes; a water pumping device; a water distribution apparatus connected to said water pumping device through at least one of said connecting pipes, and arranged to distribute a predetermined amount of water to said first heat exchanger; a water collection basin arranged to collect said water from said heat exchanger; and a cooling fan provided above said water distribution apparatus for drawing ambient air to flow from said air inlet to said air outlet; wherein a predetermined amount of refrigerant is guided to circulate between said first evaporator, said first compressor and said heat exchanger, a predetermined amount of cooling water being sprayed on said first heat exchanger for performing heat exchange with said refrigerant flowing therethrough, said cooling water being cooled by said ambient air drawn from said air inlet, said ambient air being guided to flow out of said evaporative cooling unit through said air outlet. ### Claim 2 (depends on 1) The freezer, as recited in claim 1, wherein said first heat exchanger comprises a first heat exchanging tube configured to form a manifold structure in which said first heat exchanging inlet and said first heat exchanging outlet are connected to said first heat exchanging tube, refrigerant from said first compressor being guided to flow through said first heat exchanging tube through said first heat exchanging inlet. ### Claim 3 (depends on 2) The freezer, as recited in claim 2, wherein said water distribution apparatus is positioned above said first heat exchanger, and comprises a water distributing basin, and a water spraying device provided underneath said water distributing basin, said water collection basin having a distributing cavity for storing a predetermined amount of cooling water, said cooling water stored in said distributing cavity being guided to pass through said water spraying device and sprayed on said first heat exchanging tube. ### Claim 4 (depends on 3) The freezer, as recited in claim 3, wherein said evaporative cooling unit comprises two air inlets forming on two sides of said first heat exchanger while said air outlet is formed on top of said cooling fan. ### Claim 5 (depends on 4) The freezer, as recited in claim 4, wherein said first heat exchanging inlet is positioned above said first heat exchanging outlet so that said refrigerant is guided to flow from an elevated altitude to a lower altitude. ### Claim 6 (depends on 5) The freezer, as recited in claim 5, further comprising a first flow regulator connected between said first evaporator and said first heat exchanger for regulating a flow rate of said refrigerant between said first heat evaporator and said first heat exchanger. ### Claim 7 (depends on 3) The freezer, as recited in claim 3, further comprising a second freezer casing which comprises a second storage compartment, a second evaporator provided in said second freezer casing and thermally communicating with said second storage compartment, and a second compressor connected between said second evaporator and said evaporative cooling unit, said second evaporator comprising at least one second heat exchanging pipe configured to form a manifold structure for thermally communicating with said air circulating in said second storage compartment. ### Claim 8 (depends on 7) The freezer, as recited in claim 7, wherein said evaporative cooling unit further comprises a second heat exchanger provided underneath said first heat exchanger, said second heat exchanger having a second heat exchanging inlet and a second heat exchanging outlet, and comprising a second heat exchanging tube configured to form a manifold structure in which said second heat exchanging inlet and said second heat exchanging outlet are connected to said second heat exchanging tube, refrigerant from said second compressor being guided to flow through said second heat exchanging tube through said second heat exchanging inlet. ### Claim 9 (depends on 8) The freezer, as recited in claim 8, wherein said water collection basin is positioned below said second heat exchanger so that said cooling water spraying on said first heat exchanging tube is arranged to flow down to said second heat exchanging tube and eventually collected in said water collection basin. ### Claim 10 (depends on 9) The freezer, as recited in claim 9, wherein said second heat exchanging inlet is positioned above said second heat exchanging outlet so that said refrigerant is arranged to flow from an elevated attitude to a lower altitude. ### Claim 11 (depends on 10) The freezer, as recited in claim 10, wherein said evaporative cooling unit comprises two air inlets forming on two sides of said first heat exchanger and said second heat exchangers while said air outlet is formed on top of said cooling fan. ### Claim 12 (depends on 11) The freezer, as recited in claim 11, further comprising a second flow regulator connected between said second evaporator and said second heat exchanger for regulating a flow rate of said refrigerant flowing between said second heat evaporator and said second heat exchanger. ### Claim 13 (depends on 7) The freezer, as recited in claim 7, wherein said evaporative cooling unit further comprises a second heat exchanger provided adjacent to said first heat exchanger, said second heat exchanger having a second heat exchanging inlet and a second heat exchanging outlet, and comprising a second heat exchanging tube configured to form a manifold structure in which said second heat exchanging inlet and said second heat exchanging outlet are connected to said second heat exchanging tube, refrigerant from said second compressor being guided to flow through said second heat exchanging tube through said second heat exchanging inlet. ### Claim 14 (depends on 13) The freezer, as recited in claim 13, wherein said first heat exchanger and said second heat exchanger are configured to be positioned in a side-by-side manner, said cooling water from said water distribution apparatus being sprayed on said first heat exchanging tube and said second heat exchanging tube simultaneously, said cooling water spraying on said first heat exchanging tube and said second heat exchanging tube being collected by said water collection basin. ### Claim 15 (depends on 13) The freezer, as recited in claim 13, wherein said first heat exchanger and said second heat exchanger are configured to be positioned in a front-and-rear manner, in which said first heat exchanger is positioned in front of said second heat exchanger, said cooling water from said water distribution apparatus being sprayed on said first heat exchanging tube and said second heat exchanging tube simultaneously, said cooling water spraying on said first heat exchanging tube and said second heat exchanging tube being collected by said water collection basin. ### Claim 16 (depends on 14) The freezer, as recited in claim 14, wherein said water collection basin is positioned below said second heat exchanger so that said cooling water spraying on said first heat exchanging tube is arranged to flow down to said second heat exchanging tube and eventually collected in said water collection basin. ### Claim 17 (depends on 15) The freezer, as recited in claim 15, wherein said water collection basin is positioned below said second heat exchanger so that said cooling water spraying on said first heat exchanging tube is arranged to flow down to said second heat exchanging tube and eventually collected in said water collection basin. ### Claim 18 (depends on 16) The freezer, as recited in claim 16, wherein said second heat exchanging inlet is positioned above said second heat exchanging outlet so that said refrigerant is arranged to flow from an elevated attitude to a lower altitude. ### Claim 19 (depends on 17) The freezer, as recited in claim 17, wherein said second heat exchanging inlet is positioned above said second heat exchanging outlet so that said refrigerant is arranged to flow from an elevated attitude to a lower altitude. ### Claim 20 (depends on 18) The freezer, as recited in claim 18, wherein said evaporative cooling unit comprises two air inlets forming on two sides of said first heat exchanger and said second heat exchangers while said air outlet is formed on top of said cooling fan. ### Claim 21 (depends on 19) The freezer, as recited in claim 19, wherein said evaporative cooling unit comprises two air inlets forming on two sides of said first heat exchanger and said second heat exchangers while said air outlet is formed on top of said cooling fan. ### Claim 22 (depends on 20) The freezer, as recited in claim 20, further comprising a second flow regulator connected between said second evaporator and said second heat exchanger for regulating a flow rate of said refrigerant flowing between said second heat evaporator and said second heat exchanger. ### Claim 23 (depends on 21) The freezer, as recited in claim 21, further comprising a second flow regulator connected between said second evaporator and said second heat exchanger for regulating a flow rate of said refrigerant flowing between said second heat evaporator and said second heat exchanger.