A controller associated with a machine may determine that a first subset of nozzles, of a plurality of nozzles of the machine, is to be cleaned. The controller may determine a first flow rate of the fluid through the first subset of nozzles and increase, based on determining that the first subset of nozzles is to be cleaned, the first flow rate of the fluid through the first subset of nozzles to a second flow rate of the fluid through the first subset of nozzles. The controller may decrease the second flow rate of the fluid through the first subset of nozzles to the first flow rate of the fluid through the first subset of nozzles when the first subset of nozzles is cleaned.

A dispensing system for dispensing a fluid, the fluid being water or a water-based mixture, includes a dispensing unit and a cleaning unit. The dispensing unit includes a connection unit for connecting the dispensing unit to a supply of the fluid, a dispensing head for dispensing the fluid, and a flexible hose for guiding the fluid from the connection unit to the dispensing head. The cleaning unit includes a cleaning attachment unit for attaching the cleaning unit to the connection unit, a cleaning fluid delivery unit configured to deliver cleaning fluid to the dispensing unit via the cleaning attachment unit, and a receptacle unit configured to accommodate the dispensing head and to receive fluids exiting the dispensing head.

Disclosed are devices and systems for self-cleaning deep HVAC coils with built-in self-cleaning mechanisms and enhanced heat transfer, and methods of cleaning thereof. For example, some embodiments of a deep HVAC coil include a series of built-in self-cleaning mechanisms disposed among an array of heat transfer coils. Depending on the size and depth of the deep HVAC coil, the number of self-cleaning mechanisms may vary. The disposition and installation of self-cleaning mechanisms in the deep coil HVAC is configured to provide an even distribution and injection of a desired cleaning solution or foam which sufficiently covers an internal surface area of the deep HVAC coils and sufficiently fills an internal volume of the deep HVAC coils.

The present disclosure provides systems and methods for automating the cleaning and sanitizing processes of a food dispensing machine. The systems and methods may be set to run automatically and may keep a dispensing system cleaned and sanitized for an extended time. The systems and methods disclosed are designed to make cleaning easier for the operator, shorten the overall cleaning time, reduce the amount of labor involved, and improve the convenience, reliability, and repeatability of the cleaning processes.

A heat exchanger cleaner apparatus for spraying a cleaning composition into an air handler of an air conditioning system to contact an outer surface of a heat exchanger of the air handler includes a spray outlet assembly, a pump device, a connector interface, and a controller. The spray outlet assembly is inserted into an interior of the air handler to be exposed to the heat exchanger outer surface. The connector interface detachably couples with a complementary connector interface of a cartridge having a cartridge reservoir holding the cleaning composition, to establish flow communication between the cartridge reservoir and the pump device. The controller operates the pump device to pump cleaning composition from the cartridge reservoir and through the spray outlet assembly such that the spray outlet assembly sprays a fluid stream of the cleaning composition at least partially contacting the outer surface of the heat exchanger, without manual intervention.

A liquid chromatographic system includes a first cleaning pump that supplies a cleaning solution to a first valve, a selector valve connected to a first column and a second column, the selector valve switching an object to be connected to a detector that analyzes a separated sample between the first column and the second column, and a controller. The controller can have the first cleaning pump driven to clean the selector valve with the cleaning solution that flows through a first analysis flow path.

A liquid chromatographic system includes a column, a needle, a valve, a pump, and an analysis flow path. The valve sets the analysis flow path by switching between a first flow path through which an eluent flows from the valve to the column via the needle and a second flow path through which the eluent flows from the valve to the column not via the needle. The first flow path can be cleaned by drive of a first cleaning pump while the first flow path is set, and the second flow path can be cleaned by drive of the first cleaning pump while the second flow path is set.

Various automated cleaning systems for internal cavities of pressure instruments are disclosed. The systems comprise a computer controlled fluid flow system that enables the use of various cleaning fluids for cleaning internal cavities of pressure instruments to high cleanliness levels. Various pressure instruments, including complex shapes such as Bourdon tube gauges, are accommodated. The system can include a computerized cleaning cycle selection and a multi-fluid combination of cleaners for efficient and low cost cleaning solution. A servo controlled agitation system can allow for filling, evacuation, and drying of aqueous solutions as well as high performance solvents for Oxygen Clean service.

A shotgun hydroblasting system includes a chassis. A motor is operable to drive movement of the chassis. A support arm assembly is mounted to the chassis. A shotgun nozzle mounted to the support arm assembly such that the shotgun nozzle is movable relative to the chassis on the support arm assembly. The shotgun nozzle includes a barrel defining a primary outlet for pressurized fluid and a suppressor defining a secondary outlet for the pressurized fluid. The barrel and the suppressor are positioned and oriented such that a force of the pressurized fluid exiting the secondary outlet opposes a force of the pressurized fluid exiting the primary outlet.

Provided is a liquid supply system with which it is possible to perform quality control of a liquid provided by the system. A liquid supply system (101) that pumps a liquid in a storage container (10) through a supply tube (30) and dispenses the liquid from a liquid dispensing spout of a dispensing device (50), said liquid supply system (101) comprising: a jetting prevention device (110) that has a liquid inlet (111), a liquid outlet (112), and a float (116) for closing the liquid outlet due to inflow of air from the liquid inlet, thereby preventing jetting of pressurized air from the liquid dispensing spout, and provides cleaning or no cleaning inside of a conduit in the liquid supply system; a liquid absence detection device (120) that has a no-liquid/liquid passing sensor (122) for detecting that the liquid in the storage container is gone, and sends empty storage container information; and a transmission device (130) that has a control unit (131) for carrying out control of information transmission to a communication line (200).