A drain clearing air gun includes a housing defining a main body, a handle positioned on a first end of the main body, and a nose positioned on a second end of the main body. The drain clearing air gun additionally includes a tank at least partially positioned within the housing and including a chamber for receiving pressurized air, a motor positioned within the main body of the housing, and a pump positioned within the main body of the housing and operatively coupled to the motor. The pump is driven by the motor to pump air into the tank. The drain clearing air gun also includes a connection mechanism coupled to the nose. The connection mechanism includes a receiving member configured to releasably couple to a plurality of accessories.

A method for improving a corrosion protection of a hollow shaft may include introducing a lance into the hollow shaft, and cleaning and expelling a liquid from an inside of the hollow shaft via spraying a gas from the lance. The method may also include applying a corrosion protection medium onto an inner lateral surface of the hollow shaft at least in certain regions, and closing off the hollow shaft.

A hose assembly includes a first conduit, a second conduit, a nozzle assembly, and a valve assembly. The first conduit defines a first fluid path through the hose assembly. The second conduit is received within and extends partially through the first conduit. The second conduit defines a second fluid path through the hose assembly. The nozzle assembly is coupled to a first end of the first conduit. The valve assembly is fluidly coupled to the first conduit and the second conduit. The valve assembly is fluid coupled to a second end of the first conduit opposite the first end. The valve assembly is adjustable between a first position and a second position. In the first position, the valve assembly provides water into the first conduit. In the second position, the valve assembly provides pressurized air into the second conduit.

A fluid delivery system or method for the same may include features or steps for dispensing, via a nozzle, a first fluid from a first fluid storage tank of at least two fluid storage tanks. The fluid storage tanks may be separately fluidly coupled to a manifold via respective fluid supply lines. A fluid delivery line fluidly may couple the nozzle to the manifold. A residual first fluid may remain within the delivery line after the dispensing step. The system or method may further include features or steps for connecting the nozzle to a clearance tank. A clearance outlet line may fluidly couple the clearance tank to the manifold. The system or method may further include features or steps for purging the residual first fluid from the fluid delivery line into the clearance tank and delivering the residual first fluid from the clearance tank to the first fluid storage tank.

An apparatus for removing and cleaning medicine powder as residue from an automatic dispenser includes a pressure sensor, a positive pump, and a control module. The control module includes a control unit and a power supply unit. The pressure sensor detects a first pressing force to obtain a predetermined value. The pressure sensor detects a second pressing force in a first tube to obtain a first detection value. The control unit is configured to obtain a first difference value, and determine whether the same is within a reference range. The power supply unit supplies power to the positive pump if the first difference value is not within the reference range. The positive pump creates an airflow to blow the medicine powder out of the first tube when powered. A method for cleaning up medicine powder is also provided.

A method of cleaning a jet pump assembly of a nuclear reactor may comprise evacuating an interior of the jet pump assembly that is filled with a first liquid by injecting a gas to purge the first liquid from the interior to provide an evacuated surface. In addition, the method may comprise directing a jet of a second liquid onto the evacuated surface.

A method for cleaning a gas supply unit of a gas inspection apparatus, the gas supply unit (8) being configured to supply a sample gas from supply ports (P01 to P12) to an inspection unit via a supply path, the method including connecting a bag container in which nitrogen gas is sealed to each of the supply ports (P01 to P12), and depressurizing the supply path for a predetermined period of time.

An on-line measurement system for aerosol precursors emitted from industrial sources has three parts: online measurement part, pipeline cleaning part and automatic control part. The system includes: a particulate filter, high temperature intake pipe, two detergent tanks, an air pump, a cooling water pump, two detergent pumps, a condenser, an impinger, a cooling water meter, a salinity meter, a liquid flow meter, a gas flow meter, nitrogen cylinders, connecting pipes, control valves, computer control program etc. The aerosol precursor concentration Cg emitted from industrial sources is measured in the online measurement section. After every measurement, the pipeline is cleaned by the pipeline cleaning part to remove organic and inorganic residual. The automatic control part is controlled by the computer through a controlling program to control the working process of the system. The system has small area occupation, low investment cost, simple maintenance, convenient transformation and high applicability.

A pipe fitting having a first end portion, a second end portion and a perforated portion extending between the first end portion and the second end portion. The perforated portion has an inner side wall and outer wall spaced from the inner side wall. A fluid receiving cavity extends between the inner side wall and the outer wall. The inner side wall defines a material flow passageway. Openings are provided in the inner side wall of the perforated portion. The openings have ends which open into the fluid receiving cavity. A port extends through the outer wall and into the fluid receiving cavity. In operation, fluid enters the port and flows through the fluid receiving cavity and through the openings into the material flow passageway to clear any material restrictions.

A semiconductor processing system includes a chamber arrangement, an exhaust arrangement connected to the chamber arrangement, an accretion sensor supported within the exhaust arrangement, and a processor. The processor is disposed in communication with the accretion sensor and is responsive to instructions recorded on a non-transitory machine-readable medium to receive an accretion signal from the accretion sensor, the accretion signal indicative of an accretion amount disposed within the exhaust arrangement, receive a predetermined accretion amount value, and compare the accretion amount to the predetermined accretion amount value. The instructions further cause the processor to execute an accretion countermeasure when the received accretion amount is greater than the predetermined accretion amount value. Methods of controlling accretion within exhaust arrangements for semiconductor processing systems and foreline assemblies for semiconductor processing systems are also described.