The present invention discloses a hydrate energy-storage temperature-control material and a preparation method therefor. The material includes a refrigerant hydrate and a cross-linked polymer. The preparation method comprises the following steps: first, preparing a refrigerant hydrate by using a high-pressure reactor, and conducting grinding, crushing and sieving to obtain hydrate particles; then, uniformly spraying polytetrafluoroethylene suspended ultrafine powder onto the surface of the hydrate particles by using an electrostatic spraying device, and putting the hydrate particles into a plasma instrument to modify polytetrafluoroethylene so as to allow free radicals to be formed on the polytetrafluoroethylene powder surface; finally, subjecting monomers to graft polymerization with the free radicals on the polytetrafluoroethylene surface under the irradiation of a high-pressure mercury lamp of UV lighting system to stabilize the structure of the material, preparing a final product. According to the present invention, a hydrate energy-storage temperature-control material with good stability is prepared. A method capable of preparing various types of refrigerant hydrate materials is provided. The product can give full play to the advantages of hydrate energy storage and temperature control, can be periodically used, and can be used in various fields such as building, refrigeration, etc.

An electrostatic oiling system for use with single blanks in batch systems having an open spray chamber without the need for a negative vacuum chamber. Further, the provided electrostatic oiling system may utilize induction beams and a charge wall that allows for utilization of a smaller vacuum system. Further, the provided electrostatic oiling system may provide variable blank coverage without the need for metered pumps.

An electrostatic spraying apparatus according to an embodiment of the present invention is an electrostatic spraying apparatus that releases a liquid from a nozzle of a liquid sprayer in a charged state by an electrostatic force generated by application of a voltage and sprays the liquid to an object to be coated, in which the liquid sprayer includes a head having a nozzle group that includes a plurality of nozzles, and an external electrode disposed on an outer side of the nozzle group.

Various exemplary illustrations of an electrode assembly for an electrostatic atomizer, for example for a rotation atomizer, and exemplary methods of making and/or using the same, are disclosed. An exemplary electrode assembly may not include an electrode holder arrangement for holding at least one electrode creating an electrostatic field about a symmetrical axis, wherein there is dielectric material for influencing a discharge current component extending in the direction of the symmetrical axis.

Provided are a cleaning method and cleaning device for cleaning with micro/nano-bubbles, with which a simple method of spraying a treatment solution containing micro/nano-bubbles onto a substrate to be processed makes it possible to efficiently and reliably peel off residual resist or remove contaminants from the substrate, while reducing an environmental load.

This cleaning method is characterized in that, with respect to a substrate to be treated to which a resist film has adhered onto the substrate or a substrate to be treated to which the surface thereof has been contaminated with a metal or metal compounds, the resist film is peeled off or the metals or metal compounds are removed by spraying onto the substrate to be treated a treatment solution containing gaseous micro/nano-bubbles and having a temperature maintained at 30 C. to 90 C., the mean particle size of the micro/nano-bubbles when measured by an ice embedding method using a cryo-transmission electron microscope being 100 nm or smaller, preferably 30 nm or smaller, and also preferably the density of such bubbles being 10.sup.8 or more bubbles per 1 mL.

An electrostatic oiling system for use with single blanks in batch systems having an open spray chamber without the need for a negative vacuum chamber. Further, the provided electrostatic oiling system may utilize induction beams and a charge wall that allows for utilization of a smaller vacuum system. Further, the provided electrostatic oiling system may provide variable blank coverage without the need for metered pumps.

Apparatus for coating a heated pipe section with a fusible powder includes a booth enclosing a powder application volume, at least one powder dispensing device for dispensing powder supplied to the device in the direction of the heated pipe section as the heated pipe section passes through the volume, and a filter mechanism coupled to the booth for extracting from the booth a stream of air entraining fusible powder that does not stick to the heated pipe section and extracting the fusible powder that does not stick to the heated pipe section from the volume. The apparatus further includes an opening between the volume and the filter mechanism. The opening permits the mixing of cooler air into the stream of air entraining fusible powder that does not stick to the heated pipe section before the stream of air entraining fusible powder that does not stick to the heated pipe section reaches the filter mechanism.

A pan oiler for depositing cooking oil into product molds of a baking pan includes a conveyor assembly configured to carry the baking pan through the pan oiler and an electrostatic oiler assembly. The electrostatic oiler assembly includes at least one injector assembly, a charge assembly and an oil delivery assembly. The injector assembly may include a valve body, an oil reservoir within the valve body, a valve seat within the valve body in fluid communication with the oil reservoir, a plunger extending into the valve body and an actuator operably connected to the plunger to lift the plunger off the valve seat when the actuator is energized. The plunger is retractable and conductive and in electrical contact with the charge assembly.

According to one embodiment, a cleaning device cleans a nozzle provided on a nozzle head of an electrospinning apparatus. The device includes a storage part and a cleaning part. The storage part is box-shaped, and one surface of the storage part is open. The cleaning part is provided inside the storage part, is flexible, and is capable of holding a solution.

A powder supplying device (2) includes a case (6) in which a storage portion (6a) is formed for temporarily storing powder (10), the case (6) having an inlet (6b) formed in an upper end of the storage portion (6a), and a rectangular outlet (6c) formed in a lower end of the storage portion (6a); a rotor (7) that is arranged in the case (6) and transports the powder (10) in the storage portion (6a) to the outlet (6c) by rotating; and a mesh body (8) through which the powder (10) that has been transported to the outlet (6c) passes. The powder supplying device (2) supplies the powder (10) onto an upper surface of an electrode foil (5). The rotor (7) has a brush-like shape, with a plurality of hair members (7b) radially implanted pointing radially outward with an axial center (G) of the rotor (7) as the center.