The present invention relates to wash oil for use as an antifouling agent in gas compressors, in particular in cracked gas compressors, including at least one compound according to formulae (II)

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with the moieties R.sup.2 and R.sup.3 are selected from a group of linear or branched C.sub.1-C.sub.20-alkyl, C.sub.3-C.sub.10-cycloalkyl and linear or branched C.sub.1-C.sub.10-alkyl substituted C.sub.3-C.sub.10-cycloalkyl and C.sub.6-C.sub.12 aryl and C.sub.1-C.sub.10-alkyl substituted C.sub.6-C.sub.12 aryl. The moieties can be interrupted by oxygen or nitrogen. The moieties can be functionalised with hydroxyl groups or amino groups. The moieties can be the same or different. The invention relates also to the use of such wash oil as anti-fouling agent.

A centrifugal compressor includes: a rotational shaft; a main casing surrounding at least a part of the rotational shaft, the main casing having an inlet and an outlet separated from each other in an axial direction of the rotational shaft and an annular space surrounding a section of the rotational shaft at a side of the inlet and communicating with the inlet; at least one impeller disposed in a fixed state to the rotational shaft inside the main casing; a flow guide member disposed inside the annular space and extending along the axial direction of the rotational shaft; a plurality of injection holes disposed along the flow guide member and separated from one another along the axial direction of the rotational shaft; and a flow path which extends inside the annular space and through which a cleaning fluid to be supplied to the plurality of injection holes is capable of flowing.

The present invention relates to a ventilator, aiming easier cleanup even in the position mounted on the ceiling or wall. According to the present invention, a ventilator may comprise an outer casing having a mounting space in an inside thereof, an inner casing mounted in the mounting space of the outer casing, a blowing fan received in an inner space of the inner casing, and a motor rotating the blowing fan, wherein a wave-shaped flow path is formed on each inner wall surface of the inner casing.

A method for operating a humidifier coupled to a gas flow generator. The humidifier has a pump providing a supply of water to a heater plate. The method includes: providing power to the gas flow generator; raising the temperature of the heater plate from an ambient temperature to about a first predetermined temperature; powering the pump at about a predetermined first duty cycle; monitoring the temperature of the heater plate until one of: a drop in temperature is detected, or a predetermined period of time has elapsed; and one of: increasing the duty cycle of the pump if the drop in temperature is detected, or turning off the pump if the predetermined period of time has elapsed.

A mobile climate control assembly that includes a portable housing with a first fan blower-wheel assembly and a second fan blower assembly each respectively having a wheel blade member, partially surrounded by an air deflector wall, disposed within a housing cavity and operably configured to rotate 360° around an axis of rotation parallel and non-co-planar with respect to one another. The assembly also includes a fan motor operably coupled to the wheel blade members and an electronic controller electronically and communicatively coupled to the fan motor and operably configured to independently and selectively control rotation of the wheel member of each of the first and second fan blower-wheel assemblies to generate an ambient air velocity gradient along at least an approximate 90° angular traverse path from the front face and without rotation of the portable housing.

A wash system for a gas turbine engine includes a core turning assembly having a motor configured to be mechanically coupled to the gas turbine engine. The rotor of the core turning assembly is further configured to rotate one or more components of a compressor section or a turbine section of the gas turbine engine at a rotational speed greater than two (2) revolutions per minute and less than five hundred (500) revolutions per minute during washing operations of the gas turbine engine.

A compressor system includes a compressor and a supply control unit that controls a state of supply of water and a state of supply of oil. The supply control unit includes a rate-of-change acquisition unit that acquires a rate of change in efficiency of the compressor, a supply amount acquisition unit that acquires the amount of supply of the oil, an operating cost acquisition unit that acquires an operation cost from the rate of change, an oil cost acquisition unit that acquires an oil cost from the amount of supply of the oil, and a cost relationship acquisition unit that acquires a plurality of provisional relationship values that are the relationship between the operating cost and the oil cost under each of the plurality of provisional cleaning conditions.

The respiratory blowing device is provided with a first unit including a first housing and a second unit including a rotating body and a second housing. The first housing includes a first outlet, the rotating body includes a first coupling port and a first coupling path, and the second housing includes a first inlet and a second outlet. The rotating body is configured to rotate between a first position and a second position. At the first position, the first outlet is coupled to the first coupling port in a state that the first housing and the second housing are separated from each other. At the second position, the first housing is attached to the second housing by the rotation of the first housing to approach the second housing in a state that the first outlet is coupled to the first coupling port.

A rotating plate misting fan (RPMF) is capable of delivering cooling to industrial environments including loading bays for docked trailers. The RPMF includes a rotating plate assembly configured to eliminate or minimize water collection in the environment area.

A portable misting system includes a carrying case, a fluid pump arranged within the carrying case, and a power source arranged within the carrying case to provide electrical power to the fluid pump. A working fluid source provides a working fluid to the fluid pump via a supply line, a distribution line receives a pressurized working fluid from the fluid pump, and one or more spray nozzles are coupled to the distribution line to discharge the pressurized working fluid as a mist.