A cleaning system and process for cleaning a medical system comprising at least one air source at least one cleaning solution source at least one rinsing solution source and at least one switch for switching between the at least one air source, the at least one cleaning solution source, and said at least one rinsing solution source. The process is configured to selectively provide the cleaning solution from the cleaning solution source, selectively provide the rinsing solution source, and selectively providing the air pressure to purge the lines of a medical/dental system.

The invention relates to a method for cleaning a phosgene conducting apparatus, comprising: washing the apparatus with hot inert gas, followed by washing the apparatus with cold inert gas; conveying gaseous ammonia for breaking down phosgene residues with a continuous increase in temperature until a maximum temperature ranging between 30° C. to 120° C. is reached; once the maximum temperature is reached, shutting down the ammonia supply and the conveying of inert gas, optionally followed by washing the apparatus with an aqueous stream.

Included are methods and systems for recycling a gas emitted from non-aqueous cleaning. An example method includes contacting a contaminated equipment with a non-aqueous cleaning material; wherein the spent non-aqueous cleaning material emits the gas. The method further comprises capturing the emitted gas, filtering the emitted gas, and recycling the emitted gas into the non-aqueous cleaning material.

A water pipe cleaning system using high-pressure nitrogen and a water pipe cleaning method using the same are provided. The water pipe cleaning system using high-pressure nitrogen includes: nitrogen pressure vessels containing high-pressure nitrogen therein; a main control unit gathering the high-pressure nitrogen from the nitrogen pressure vessels and controlling pressure of the high-pressure nitrogen; a feed piping device connected to an outlet of the main control unit and connected to an inlet of a pipe to be washed; and a discharge piping device connected to an outlet of the pipe and connected to a nitrogen discharging portion to discharge nitrogen discharged from the pipe to the outside. The main control unit is configured such that control modules are stacked on one another. Each of the control modules is configured such that the nitrogen pressure vessels are connected together in parallel, and has an individual outlet.

The present invention relates to a method of rapidly decontaminating and making safe for entry, hydrocarbon contaminated equipment by sequencing a cleaning mist or foam, an encapsulating mist or foam and a dry carrier gas.

A method of removing a blockage in a solids injection lance under normal operating conditions of a direct smelting vessel is disclosed. The direct smelting vessel contains a bath of molten metal and slag and the solids injection lance extends into the direct smelting vessel and has an outlet end that is submerged in the molten slag. The solids injection lance further has a single inlet coupled to a section of supply line that conveys gas and solid feed material to the solids injection lance. The method comprises (a) advancing a blockage-removing tool through the supply line section and through the solids injection lance to an upstream side of the blockage, (b) operating the tool under elevated gas pressure conditions to remove the blockage such that solid feed material and gas are able to flow through the solids injection lance. The method further comprises (c) retracting the tool from the solids injection lance and the supply line section. Also disclosed is an apparatus for removing a blockage in a solids injection lance extending into a direct smelting vessel.

An attachment for an air blow gun includes a nozzle and a nozzle insert. The nozzle is a hollow cylinder and includes radial pinholes at one end. The nozzle insert includes a longitudinal pinhole. The nozzle insert is inserted into the end of the nozzle with the radial pinholes. When high-pressure air is delivered to the attachment, plumes of high-velocity air exit from the radial pinholes and the longitudinal pinhole. The attachment is particularly well suited to cleaning confined spaces in workpieces with high-velocity air.

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.

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.

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).