A hydroelectric power generation apparatus includes a hydroelectric power generation module, a beam as a supporting part, and a fixing part. The hydroelectric power generation module includes a rotary blade and a power generator that generates power by rotation of the rotary blade. The supporting part supports the hydroelectric power generation module. The fixing part fixes the supporting part to a water channel. The fixing part includes a bolt to press a surface of a wall portion of the water channel to fix the supporting part to the water channel. The hydroelectric power generation apparatus can dispense with a work performed around the water channel to install the apparatus and also be relocated easily and inexpensively.

A vertical wind-driven generator blade comprising: a bracket with a generator unit therein, the upper end of the bracket is provided with a blade set, the blade set includes a connecting shaft, two connecting pieces at least and at least two blades, and the lower end of the connecting shaft of the lowermost blade set is connected to the generator unit, and the connecting shaft is axially provided with two connecting pieces at least around the upper end of the bracket, which is radial and formed into a concave arc shape at the same direction; each blade is extended to a unit large blade or more at the length and height direction, and assembled into the vertical wind-driven generator with two large blades at least. With this structure, the present invention can effectively improve the generated power and the operation convenience.

The present invention discloses a method of a mobile power generation system. A power generation apparatus is respectively quickly connected, through expansion joints, to an intake assembly and an exhaust duct which are separately transported, to implement the quick installation and connection of the power generation system at the fracturing operation site. Two conveyances are respectively provided for the intake assembly and the exhaust duct to achieve more flexible adjustment during connection. While the position of the power generation apparatus is fixed, the intake assembly is moved to connect to an intake chamber of the power generation apparatus, and the exhaust duct is moved to connect to an exhaust collector of the power generation apparatus.

The present invention discloses a method of a mobile power generation system. A power generation apparatus is respectively quickly connected, through expansion joints, to an intake assembly and an exhaust duct which are separately transported, to implement the quick installation and connection of the power generation system at the fracturing operation site. Two conveyances are respectively provided for the intake assembly and the exhaust duct to achieve more flexible adjustment during connection. While the position of the power generation apparatus is fixed, the intake assembly is moved to connect to an intake chamber of the power generation apparatus, and the exhaust duct is moved to connect to an exhaust collector of the power generation apparatus.

A pump support assembly includes a skid having a top surface and a bottom surface configured to movably rest on the ground; and a frame for supporting a pump, the frame having a main body, and two wings extending from opposite sides of the main body substantially perpendicular to the main body, the frame supported on the top surface of the skid and connected to the skid at an end of one of the wings to isolate a pump support surface of the frame from deformations of the skid.

It is possible to provide a blower device in which the fixing position of the blower device is easily changed and the increase in cost is greatly suppressed. A blower device 100 in which a flange 201 having a fixing attaching foot 200 is attached to rails 108 and 109 formed on an outer circumferential surface of a casing 103, and a retaining block 205 is attached to the flange 201 to secure the flange 201 to the casing 103, the retaining block 205 includes a first block, a second block, and a connecting portion having smaller width and connecting the first block and the second block, and the first block and the second block each include a retaining leg portion and a latching leg portion, and a projecting portion is formed on a side surface of the retaining leg portion.

A blower device has a fixing position which is easily changed and the increase in cost is greatly suppressed. A blower device in which a flange having a fixing attaching foot is attached to rails formed on an outer circumferential surface of a casing, and a retaining block is attached to the flange to secure the flange to the casing, the retaining block includes a first block, a second block, and a connecting portion having smaller width and connecting the first block and the second block, the first block and the second block each include a retaining leg portion and a latching leg portion, and a projecting portion is formed on a side surface of the retaining leg portion and ribs are formed at both sides of the projecting portion.

An apparatus for generating electricity from falling material includes a capture wheel arranged to receive a falling material and be rotated thereby. The capture wheel may be mounted on a transportable housing having a generator therein. The housing may be a shipping container and the apparatus may be arranged to fit entirely within the shipping container for transportation. The capture wheel may include a hub comprising a central core encapsulated in a layer of resilient material; a wheel framework extending from the hub, wherein the wheel framework is connected to the resilient layer; and a plurality of bucket sections mounted on the wheel framework and arranged to receive the falling material. The hub may be a tri-layer hub including a central core, a layer of resilient material, and an outer support ring surrounding the layer of resilient material. A method of generating electricity using such an apparatus is also disclosed.

A method for installing a plurality of rotor blades to a rotatable hub secured atop a tower of a wind turbine includes providing a counterweight assembly having, at least, a mounting assembly and a counterweight mass secured at a distal end of the mounting assembly. The method also includes securing the mounting assembly at a first position on the hub of the wind turbine such that the counterweight mass biases the hub to rotate about its rotation axis in a first direction. Further, the method includes consecutively installing the plurality of rotor blades onto the hub of the wind turbine. Moreover, the method includes adjusting a position of the counterweight mass between each consecutive installation of the plurality of rotor blades to continuously change a center of gravity of the hub and maintain a balanced rotor of the wind turbine during installation of the plurality of rotor blades.

A portable cooling apparatus comprises a fan unit and a holder. The fan unit comprises a housing, a fan, a plurality of intake openings, and a plurality of outflow openings. The housing comprising a first housing surface. The fan is located within the housing and is adapted to circulate air. The intake openings are located on the first housing surface, with the intake openings adapted to allow air to enter into the housing for circulation by the fan. The outflow openings located on the housing, with the outflow openings adapted to allow air to exit from the housing. The holder comprises a backing, one or more walls, and a protrusion. The backing comprises a first backing surface. The walls extend from the backing. The protrusion is located on the first backing surface. The fan unit is adapted to engage within the holder, and when so engaged, the first housing surface is spaced apart from the backing by the protrusion.