摘要:
An apparatus and method for programming a controller to vary the concentration set-point of an additive as a function of time. The present invention insures that the additive is injected to the machine at proper times to allow for optimum efficiency and lowest cost. To vary the set-point according to the input parameters, the invention combines the features of a data entry device, a microprocessor, a clock, a controller, and sensors into one unit. The user may enter a time setting and set-point into the controller, along with control parameters which allow the machine to control the additive injection based on different user-defined scenarios. The microprocessor then reads the settings and outputs an appropriate set-point value from the microprocessor to the controller. Thus, the user can manually or automatically change the response function if and when conditions change.
摘要:
A dispenser (10) uses first and second flow controls (70, 73). The flow controls maintain first and second flow ranges independent of diluent pressure within a pressure range, wherein the use solution's concentration is maintained over the pressure range. A third flow control (75) may also be utilized in a third diluent passageway for maintaining a third flow range independent of the diluent pressure within the pressure range. A bypass valve assembly (41) is operatively connected to the third incoming diluent passageway. The bypass valve has a temperature control valve. The temperature control valve having a bypass passageway, wherein additional diluent is added to the use solution, thereby controlling the use solution's concentration.
摘要:
L'invention concerne un appareil et un procédé conçus pour programmer une unité de commande (12) de détergent afin de varier le point de réglage (14) de la concentration de détergent selon l'heure du jour et de réaliser les niveaux de concentration de détergent rapidement sans faire de dépassement. Ainsi, l'invention assure le fonctionnement d'une machine à laver de blanchisserie à un rendement et un coût optimums. Pour varier le point de réglage selon l'heure du jour, l'invention associe les fonctions d'un microprocesseur, d'une horloge et d'une unité de contrôle en une seule unité. L'utilisateur entre la mise à l'heure (16) et le point de réglage dans l'unité de commande (12). Le microprocesseur (10) compare ensuite le signal d'horloge en temps réel avec les mises à l'heure de l'utilisateur et les sorties d'une valeur de point de réglage appropriée, du microprocesseur (10) vers l'unité de commande (12). Pour réaliser des niveaux de concentration de détergent rapidement sans faire de dépassement, l'unité de commande (12) détecte la concentration de détergent et répartit la quantité de détergent appropriée dans la machine à laver selon une heure prédéterminée d'alimentation du détergent basée sur le temps de réponse précédent et le point de réglage programmé (14). L'unité de commande (12) peut ainsi modifier la fonction réponse s'il y a changement de conditions et à quel moment.
摘要:
An apparatus and method for programming a detergent controller (12) to vary the detergent concentration set-point (14) according to the time of day and to achieve detergent concentration levels quickly without incurring overshoot. Thus, the present invention insures that the warewashing machine is operated at optimum efficiency and cost. To vary the set-point according to the time of day, the invention combines the features of a microprocessor, a clock and a controller into one unit. The user enters the time setting (16) and set point into the controller (12). The microprocessor (10) then compares the real-time clock signal with the user time settings and outputs an appropriate set-point value from the microprocessor (10) to the controller (12). To achieve detergent concentration levels quickly without incurring overshoot, the controller (12) senses the detergent concentration and dispenses the proper detergent level to the warewashing machine according to a predetermined detergent feed time based on the previous response time and the programmed set-point (14). Thus, the controller (12) can change the response function if and when conditions change.
摘要:
Disclosed is a dispenser (10) for a solid chemical (13) and a method of dispensing the chemical (13). Water enters via an inlet line (22) and is sprayed from a spray nozzle (21), so that the solid chemical (13) is dispensed in the form of an aqueous chemical solution via outlet line (17). The solution's concentration is adjustable by varying the distance between the spray nozzle (21) and the exposed dissolving surface of the chemical (13). The spray nozzle's position is adjusted by means of a screw jack (68), a push-pull cable (93), a solenoid (100), or a lever (117).
摘要:
An apparatus and method for programming a controller to vary the concentration set-point of an additive as a function of time. The present invention insures that the additive is injected to the machine at proper times to allow for optimum efficiency and lowest cost. To vary the set-point according to the input parameters, the invention combines the features of a data entry device, a microprocessor, a clock, a controller, and sensors into one unit. The user may enter a time setting and set-point into the controller, along with control parameters which allow the machine to control the additive injection based on different user-defined scenarios. The microprocessor then reads the settings and outputs an appropriate set-point value from the microprocessor to the controller. Thus, the user can manually or automatically change the response function if and when conditions change.
摘要:
This invention relates to an apparatus and method for diluting a chemical concentrate. More particularly, dilution control is achieved by monitoring two flow meters (11, 14), comparing the flow rate information, and adjusting the diluent flow to achieve a predetermined dilution of the chemical concentrate. An air push (22) is preferably used to deliver the chemicals to the utilization points. Also a controller (100) is used to prioritize requests from the utilization points in a hierarchial fashion.
摘要:
Disclosed is a dispenser (10) for a solid chemical (13) and a method of dispensing the chemical (13). Water enters via an inlet line (22) and is sprayed from a spray nozzle (21), so that the solid chemical (13) is dispensed in the form of an aqueous chemical solution via outlet line (17). The solution's concentration is adjustable by varying the distance between the spray nozzle (21) and the exposed dissolving surface of the chemical (13). The spray nozzle's position is adjusted by means of a screw jack (68), a push-pull cable (93), a solenoid (100), or a lever (117).
摘要:
This invention relates to an apparatus and method for diluting a chemical concentrate. More particularly, dilution control is achieved by monitoring two flow meters (11, 14), comparing the flow rate information, and adjusting the diluent flow to achieve a predetermined dilution of the chemical concentrate. An air push (22) is preferably used to deliver the chemicals to the utilization points. Also a controller (100) is used to prioritize requests from the utilization points in a hierarchial fashion.