Water spray fume cleansing with demand-based operation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A62C-003/00
A62C-002/06
B05B-007/26
B05B-012/12
B01D-005/00
A62C-037/08
F24C-015/20
출원번호
US-0777402
(2014-03-14)
등록번호
US-10195470
(2019-02-05)
국제출원번호
PCT/US2014/027703
(2014-03-14)
국제공개번호
WO2014/152760
(2014-09-25)
발명자
/ 주소
Livchak, Andrey V.
Jones, Joe
출원인 / 주소
OY HALTON GROUP LTD.
대리인 / 주소
Potomac Law Group, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
175
초록▼
A system and method is provided for demand-based control of a cold water spray system of an exhaust ventilation system. Embodiments include determining a demand load of a cooking appliance that generates cooking effluent in a vicinity of an exhaust hood, and determining a temperature of water in the
A system and method is provided for demand-based control of a cold water spray system of an exhaust ventilation system. Embodiments include determining a demand load of a cooking appliance that generates cooking effluent in a vicinity of an exhaust hood, and determining a temperature of water in the cold water spray system. The cold water spray system is controlled in response to at least one of the determined appliance demand load and the determined temperature of water in the cold water spray system to maintain a low temperature of water in the cold water spray system below a predetermined temperature threshold, thereby enabling efficient removal of contaminants from the exhaust hood by the cold water spray system.
대표청구항▼
1. A method of controlling a cold water spray system in an exhaust ventilation system, the exhaust ventilation system including an exhaust hood and the cold water spray system, the cold water spray system including a plurality of cold water spray nozzles, the method comprising: determining a demand
1. A method of controlling a cold water spray system in an exhaust ventilation system, the exhaust ventilation system including an exhaust hood and the cold water spray system, the cold water spray system including a plurality of cold water spray nozzles, the method comprising: determining a demand load of a cooking appliance that generates cooking effluent that is captured by the exhaust hood;determining a temperature of water in the cold water spray system; andcontrolling the cold water spray system in response to at least one of the determined demand load of the cooking appliance and the determined temperature of water in the cold water spray system to maintain a low temperature of water in the cold water spray system below a predetermined temperature threshold, thereby enabling removal of contaminants from the exhaust hood by the cold water spray system, whereinthe controlling includes draining water from the cold water spray system when the determined temperature of water in the cold water spray system exceeds a first predetermined out-of-bounds temperature threshold. 2. The method of claim 1, wherein the controlling further includes: attempting to recover a predefined temperature of the water by flowing the water through a heat exchanger and then, upon a failure to recover the predefined temperature, draining the water to a drain and replacing it with replacement water. 3. The method of claim 1, wherein the controlling includes draining water from a storage tank of the cold water spray system. 4. The method of claim 1, wherein the first predetermined out-of-bounds temperature threshold is between about 80 degrees Fahrenheit and about 90 degrees Fahrenheit. 5. The method of claim 1, wherein the controlling includes circulating water from the cold water spray system to a heat exchanger when the determined temperature of water in the cold water spray system exceeds a second predetermined out-of-bounds temperature threshold lower than the first predetermined out-of-bounds temperature threshold, and does not exceed the first predetermined out-of-bounds temperature threshold. 6. The method of claim 5, wherein the first predetermined out-of-bounds temperature threshold is about 90 degrees Fahrenheit, and the second predetermined out-of-bounds temperature threshold is about 80 degrees Fahrenheit. 7. The method of claim 1, wherein when the determined temperature of water in the cold water spray system exceeds a second predetermined out-of-bounds temperature threshold lower than the first predetermined out-of-bounds temperature threshold and does not exceed the first predetermined out-of-bounds temperature threshold, the controlling includes: spraying water through the spray nozzles;collecting a portion of the water in a collection element of the exhaust hood; anddraining the collected portion of the water from the cold water spray system. 8. The method of claim 1, wherein the controlling includes circulating water from a water storage tank of the cold water spray system through a heat exchanger to reduce the temperature of the water, and returning the water to the water storage tank. 9. The method claim 1, wherein the controlling includes spraying water through the cold water spray nozzles based on the determined demand load of the cooking appliance and the determined temperature of water in the cold water spray system. 10. The method of claim 9, further comprising: controlling the cold water spray system to maintain a predetermined temperature difference between temperature of the cooking effluent and the temperature of the water in the cold water spray system, wherein the temperature of the water in the cold water spray system is lower than the temperature of the cooking effluent. 11. The method of claim 10, wherein the predetermined temperature difference is between about 15 degrees Fahrenheit and about 25 degrees Fahrenheit. 12. The method of claim 11, wherein the predetermined temperature difference is about 20 degrees Fahrenheit. 13. The method of claim 1, comprising controlling an amount of water sprayed through the cold water spray nozzles responsive to the demand load of the cooking appliance. 14. The method of claim 1, comprising spraying water from a storage tank of the cold water spray system through one or more of the plurality of cold water spray nozzles during a predetermined time period to wash the exhaust hood. 15. The method of claim 1, wherein the controlling comprises: spraying water through the spray nozzles;collecting a portion of the water in a collection element of the exhaust hood; and directing the collected portion of the water through a water preheater of a hot water heater. 16. The method of claim 15, further comprising; returning the water that has been collected in the collection element to a storage tank of the cold water spray system after it passes through the water preheater. 17. The method of claim 1, further comprising: controlling the cold water spray system based on a fire safety signal representing one or more of a temperature of the cooking effluent and an indicator of the presence of one or more of fire, smoke, and sparks;the controlling including:receiving the fire safety signal, the fire safety signal including one or more of a high limit exhaust temperature signal and an optical sensor signal; andspraying water through one or more of the plurality of cold water spray nozzles when the received fire safety signal indicates one or more of:the temperature of the cooking effluent exceeds a predetermined threshold cooking effluent temperature, andthe presence of one or more of fire, smoke, and sparks. 18. The method of claim 17, wherein the fire safety signal includes an indication of a fluctuating temperature in a predefined frequency band, based on a power spectral density from a band-pass filtered temperature signal, such that a predefined power of the band-pass filtered temperature signal within the predefined frequency band indicates a fire. 19. The method of claim 17, wherein the fire safety signal includes a conditioned temperature signal including at least one of a combination of effluent stream temperature with radiant temperature, optical characteristics including color and luminance, and frequency characteristics thereof. 20. A method of controlling a cold water spray system in an exhaust ventilation system, the exhaust ventilation system including an exhaust hood and the cold water spray system, the cold water spray system including a plurality of cold water spray nozzles, the method comprising: determining a demand load of a cooking appliance that generates cooking effluent that is captured by the exhaust hood;determining a temperature of water in the cold water spray system;controlling the cold water spray system in response to at least one of the determined demand load of the cooking appliance and the determined temperature of water in the cold water spray system to maintain a low temperature of water in the cold water spray system below a predetermined temperature threshold, thereby enabling removal of contaminants from the exhaust hood by the cold water spray system; anddetermining a temperature of the cooking effluent, whereinthe controlling includes draining water from the cold water spray system when the determined temperature of water in the cold water spray system exceeds the determined cooking effluent temperature minus a first predetermined temperature difference value; andwherein the first predetermined temperature difference value is a temperature difference between the temperature of the water and the cooking effluent temperature. 21. The method of claim 20, wherein when the determined temperature of water in the cold water spray system exceeds the determined cooking effluent temperature minus a second predetermined temperature difference value, and does not exceed the determined cooking effluent temperature minus the first predetermined temperature difference value, the controlling includes: spraying water through the spray nozzles;collecting a portion of the water in a collection element of the exhaust hood; anddraining the collected portion of the water from the cold water spray system;wherein the first predetermined temperature difference value is less than the second predetermined temperature difference value. 22. The method of claim 21, wherein the first predetermined temperature difference value is about 10 degrees Fahrenheit, and the second predetermined temperature difference value is about 15 degrees Fahrenheit. 23. A method of controlling a cold water spray system in an exhaust ventilation system, the exhaust ventilation system including an exhaust hood and the cold water spray system, the cold water spray system including a plurality of cold water spray nozzles, the method comprising: determining a demand load of a cooking appliance that generates cooking effluent that is captured by the exhaust hood;determining a temperature of water in the cold water spray system; andcontrolling the cold water spray system in response to at least one of the determined demand load of the cooking appliance and the determined temperature of water in the cold water spray system to maintain a low temperature of water in the cold water spray system below a predetermined temperature threshold, thereby enabling removal of contaminants from the exhaust hood by the cold water spray system, wherein the controlling comprises:spraying water through the spray nozzles;collecting a portion of water in a collection element of the exhaust hood;detecting a water quality of the collected portion;responsive to a detected out-of-bounds water quality, implementing at least two water quality recovery schemes, each including one of filtering and transferring heat out of the collected water; anddraining the collected water from the cold water spray system and replacing the collected water if the at least two quality recovery schemes fail to recover the water quality to not be of the out-of-bounds water quality.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (175)
Prior Eric S. (830 Signal Way Coos Bay OR 97420), Accelerated pulping process.
Mouch R. J. (Batavia IL) Lin M. L. (Naperville IL) Ekis ; Jr. E. W. (Naperville IL), Chemical formulation and combined process for inhibiting deposition and corrosion in cooling water and gypsum scaling in.
Kunde Klaus (Kohlberg DEX) Grimm Helmut (Neckartailfingen DEX) Becker Lorenz (Aichtal DEX), Circular knitting machine for the production of goods with enmeshed fibers.
Tarelin, Anatoly Oleksiovych; Skliarov, Volodymyr Petrovych; Weres, Oleh, Device to increase turbine efficiency by removing electric charge from steam.
Barnhart David A. (Madiera OH) Britt Ronald L. (Middletown OH) Kroger John E. (Centerville OH) Walters David A. (Middletown OH), Ducted/ductless range hood.
Lieblein Leonard R. (Williamston SC) Rogers Raymond W. (Mauldin SC) Harnesberger William F. (Pelzer SC), Exhaust hood with disposable filter assembly and filter-condition sensor.
Welsh ; II Clarke T. (Logansport IN) Huffman Ronald R. (Logansport IN) Brown C. Scott (Logansport IN) Richeson R. Daniel (Lucerne IN), Kitchen exhaust hood grease extractor.
Luniewski, Alexander Kenneth; Hamlin, Michael Thomas; Cantelupe, Robert Allen; Overbaugh, Jr., Raymond Kenneth, Low pressure steam turbine exhaust hood.
Boudreault Jean-Pierre,CAXITX H1X 1Y7, Method and apparatus for combined removal and in-situ biodegradation of grease material from a kitchen ventilator.
Wood William G. (Grosse Pointe Farms MI) Pilznienski John F. (Dearborn Heights MI), Method and apparatus for prevention of clogging of exhaust systems.
Weres Oleh ; Tarelin Anatoly Oleksiovych,UAX ITX 310129 ; Skliarov Volodymyr Petrovych,UAX ITX 312118 ; Serhienko Yury Ivanovych,UAX ITX 310120, Method for controlling electric charge within the exhaust hood and condenser of a steam turbine.
Molitor Victor D. (2829 S. Santa Fe Dr. Englewood CO 80110), Method of and device for preventing smoke curling from underneath the hood of a grease extraction ventilator.
Smith Richard D. (2415 South Ct. Palto Alto CA 94301) Uthe P. Michael (15 Admiralty Pl. Redwood Shores CA 94065), Microwave fabric dryer method and apparatus.
Rubio, Manuel J.; Contreras, Roberto; Sosa, Francisco, Nixtamalized corn flour process and apparatus improvement for recovering heat and reducing particulate emission from waste hot air.
Rhl-Hager Hannelore (Schenberger Strasse 18 8400 Regensburg DEX) Koppenwallner Georg (Himmelsstieg 1 3400 Gttingen DEX), Process and device for drawing off vapors and fumes.
Hgner Winfried (Oberhausen DEX) Piechura Hans (Bochum DEX), Process for cooling and purifying hot, dust-laden flue gases containing dioxins and other toxic substances.
Draper Robert (Churchill Boro PA) Silvestri ; Jr. George J. (Winter Park FL) Hargrove Homer G. (Maitland FL), Steam turbine exhaust pipe erosion prevention system.
Carin, Christianne; Gorbell, Brian N.; Carin, legal representative, Christianne; Fedkenheuer, Alvin W.; Jonasson, John S.; Starosud, Alexander, Systems for prevention of HAP emissions and for efficient drying/dehydration processes.
Chen Chia Shien (2F. ; No. 3 ; Alley 16 ; Lane 235 ; Pao-Chiao Rd. Hsin Tien City ; Taipei Hsien TWX) Chu Chiang Lai (4th Fl. ; No. 115 ; Sec. 1 ; Tung Ho E. St. ; Shih Lin District Taipei TWX), Vertical fluid dynamic cooling tower.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.