A fan arrangement (12) including a common hub (14) and a plurality of blades (16) arranged to radially extend from the hub (14). The fan arrangement (14) being configurable or convertible to provide: a first configuration in which a first set of the plurality of blades are shaped to provide an axial fan (13), and a second configuration in which a shroud arrangement (30) is fitted to the hub (14) to provide a tapered aerodynamic surface (33) extending about the hub (14) and a second set of the plurality of blades are shaped to provide a mixed flow fan (15). A system, method and shroud arrangement are also disclosed.
In an aspect there is disclosed, a fan arrangement for a duct, the fan arrangement including a housing having an inlet and an outlet adapted to communicate air with the duct and an axially rotatably driven impeller supported within the housing between the inlet and the outlet. The impeller includes a hub carrying a plurality of blades that span in a radial direction outwardly of the hub, the plurality of blades being shaped to urge air between the inlet and the outlet. The plurality of blades may have a tip solidity ratio in the range of about 0.8 to 1.2, and each of the plurality of blades may have a twist angle between a root and a tip thereof in the range of about 15 to 30 degrees and a substantially constant thickness. An impellor, a blade, ventilation system and related methods are also disclosed.
An impeller (20, 120) for a ducted fan arrangement (10, 110), the impeller (20, 120) including a hub (24, 124) and a plurality of blades (26, 126) extending radially from the hub (24, 124), each of the plurality of blades (26, 126) including a root (28, 128) proximate the hub (24, 124) and a tip (30, 130). A camber of each of the plurality of blades (26, 126) is arranged to flatten or reduce between the root (28, 128) and the tip (30, 130). A fan arrangement (10, 110) including such an impeller (20, 120) is also disclosed.
An impeller (20, 120) for a ducted fan arrangement (10, 110), the impeller (20, 120) including a hub (24, 124) and a plurality of blades (26, 126) extending radially from the hub (24, 124), each of the plurality of blades (26, 126) including a root (28, 128) proximate the hub (24, 124) and a tip (30, 130). A camber of each of the plurality of blades (26, 126) is arranged to flatten or reduce between the root (28, 128) and the tip (30, 130). A fan arrangement (10, 110) including such an impeller (20, 120) is also disclosed.
(1) Axial fans for mining and tunnel ventilation; electric fans for mining and tunnel ventilation; ventilating fans for commercial and industrial use, namely mining and tunnel ventilation.
Axial fans for mining and tunnel ventilation; electric fans for mining and tunnel ventilation; ventilating fans for commercial and industrial use, namely mining and tunnel ventilation
In an aspect there is disclosed, a fan arrangement for a duct, the fan arrangement including a housing having an inlet and an outlet adapted to communicate air with the duct and an axially rotatably driven impeller supported within the housing between the inlet and the outlet. The impeller includes a hub carrying a plurality of blades that span in a radial direction outwardly of the hub, the plurality of blades being shaped to urge air between the inlet and the outlet. The plurality of blades may have a tip solidity ratio in the range of about 0.8 to 1.2, and each of the plurality of blades may have a twist angle between a root and a tip thereof in the range of about 15 to 30 degrees and a substantially constant thickness. An impellor, a blade, ventilation system and related methods are also disclosed.
There are disclosed examples of a duct arrangement (10) including an outer flexible duct (12) and a flexible regulator duct (14) fitted within the outer flexible duct (12). The regulator duct section (14) includes a choke (16) adapted to vary the size of a choke portion (18) of the regulator duct section (14) proximate the choke (16) so as to regulate airflow there through.
In an aspect there is disclosed a flexible duct arrangement (10) including a duct (12) and a flow control valve (14). The duct (12) includes a first duct section (16) and a second or branch duct section (18) that branches from the first duct section (16). The valve (14) includes a flexible body (20) arranged span between the opposing lateral sides (22a, 22b) of the first duct section (16). The flexible body (20) is adapted so as to be moveable between a closed condition in which the flexible body (20) substantially covers the second duct section (18) and an open condition in which the flexible body (20) moves away from the second duct section (18) so as to uncover the second duct section, and open both of the first duct section (16) and the second duct section (18).
There is disclosed a flexible duct arrangement (10) including a flow meter (12) and a flexible duct (14). The flow meter (12) includes a pressure sensor (16), a substantially flexible elongate body (18) arranged to be supported between opposing sides (21) of the flexible duct (14) and flexible conduits (20) extending between the elongate body (18) and the pressure sensor (16). The elongate body (18) includes an upstream hollow tube (22) and a downstream hollow tube (24) each adapted to respectively communicate air at the upstream and downstream sides (26a, 26b) of the elongate body (18) with the pressure sensor (16) via the flexible conduits (20).
E21F 1/08 - Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
F16L 11/12 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
G01P 5/16 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes
In an aspect there is disclosed, an evaporation system (10) including a base (12) having opposing ends (16); two evaporator units (14) supported toward each of the opposing ends (16) of the base (12), each of the two evaporator units (14) including a substantially hollow cylindrical body (22) with an inlet end (24) and an outlet end (26); a pump and control system (15) including a pump (20) located intermediate the two evaporator units (14). The system (10) is configurable between a transport configuration, in which each of the hollow cylindrical bodies (22) is arranged in a substantially horizontal lengthwise orientation relative to the base (12), and an installed configuration in which the hollow cylindrical bodies (22) are angled upwardly with the outlet ends (26) thereof relatively above the inlet ends (24) thereof.
In an aspect, there is disclosed a system (100) for providing ventilation to a ventilated location (101) within a passageway (103). The system (100) includes: a duct (102) arranged to extend between an inlet location (104) to an outlet location (106) proximate the ventilated location (101); an axial fan (10) fitted with the duct having an impellor (22) adapted move air between the inlet location (104) and the outlet location (106); a controllable vane (38) located within the duct (102) relatively upstream of the impellor (22); a sensor (108) located relatively downstream of the impellor (22) adapted to provide a measurement indicative of a volumetric flow rate discharged from the outlet location (106); and a controller (112) in operative communication with the sensor (108) and the vane (38), the controller (112) being configurable to determine the volumetric flow rate and control the vane (38) so as to maintain the volumetric flow rate above a pre-determined minimum volumetric flow rate. Other examples of the system and associated methods are also disclosed.
F24F 11/75 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
E21F 1/08 - Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
F04D 19/00 - Axial-flow pumps specially adapted for elastic fluids
In an aspect there is disclosed, a fan arrangement (10) for a duct, the fan arrangement (10) including a housing (12) having an inlet (24) and an outlet (27) adapted to communicate air with the duct and an axially rotatably driven impeller (22) supported within the housing (12) between the inlet (24) and the outlet (27). The impeller (22) includes a hub (21) carrying a plurality of blades (23) that span in a radial direction outwardly of the hub (21), the plurality of blades being shaped to urge air between the inlet (24) and the outlet (27). The plurality of blades (23) may have a tip solidity ratio in the range of about 0.8 to 1.2, and each of the plurality of blades (23) may have a twist angle between a root (52) and a tip (54) thereof in the range of about 15 to 30 degrees and a substantially constant thickness. An impellor (22), a blade (23), ventilation system and related methods are also disclosed.
In an aspect there is disclosed, a fan arrangement (10) for a duct, the fan arrangement (10) including a housing (12) having an inlet (24) and an outlet (27) adapted to communicate air with the duct and an axially rotatably driven impeller (22) supported within the housing (12) between the inlet (24) and the outlet (27). The impeller (22) includes a hub (21) carrying a plurality of blades (23) that span in a radial direction outwardly of the hub (21), the plurality of blades being shaped to urge air between the inlet (24) and the outlet (27). The plurality of blades (23) may have a tip solidity ratio in the range of about 0.8 to 1.2, and each of the plurality of blades (23) may have a twist angle between a root (52) and a tip (54) thereof in the range of about 15 to 30 degrees and a substantially constant thickness. An impellor (22), a blade (23), ventilation system and related methods are also disclosed.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Pumps including water removal and sump pumps; covers for
machines including exhausts and turbos of machinery; sound
absorbers including silencers being parts of machines;
apparatus (machines) for filtering dust; apparatus for the
filtering and collection of dust. Electrical systems, programmed switchboards and control
systems including those incorporating weather stations and
water pressure control for water evaporators and motor
control. Evaporators including water evaporators and water evaporator
systems; air distribution apparatus; air filtering
apparatus; fans including axial fans and ventilation fans;
apparatus for the distribution of water; water treatment
apparatus; sound absorbers being parts of apparatus for
exhaust installations; waste water treatment installations;
air purifying apparatus and machines. Thermal insulating and heat resistant materials including
those provided as covers for exhausts and turbos of
machinery; sound absorbing materials. Treatment services being treatment of waste materials and
liquids, water, air and soil; waste management services,
namely, cleaning, processing, recycling and removal of
waste; waste processing. Engineering and design services including services in
relation to water management and treatment; engineering
project management services; design of electrical and
control systems.
A water atomisation device for water evaporation and/or dust control. The device includes: a generally longitudinally hollow housing; a fan; a motor; and a hollow manifold. The housing extends between an inlet end and an outlet end, with the inlet end defining a first air inlet to an interior of the housing. The fan is within the housing, between the inlet end and the outlet end. The motor drives the fan. The manifold is shaped to generally correspond to that of the outlet end and has a plurality of water injector nozzles directed substantially inwardly and away from the outlet end. A distal edge of the outlet end is longitudinally spaced apart from a proximal edge of the manifold to define a second air entrainment inlet to an interior of the manifold.
A water atomization device for water evaporation and/or dust control. The device includes: a generally longitudinally hollow housing; a fan; a motor; and a hollow manifold. The housing extends between an inlet end and an outlet end, with the inlet end defining a first air inlet to an interior of the housing. The fan is within the housing, between the inlet end and the outlet end. The motor drives the fan. The manifold is shaped to generally correspond to that of the outlet end and has a plurality of water injector nozzles directed substantially inwardly and away from the outlet end. A distal edge of the outlet end is longitudinally spaced apart from a proximal edge of the manifold to define a second air entrainment inlet to an interior of the manifold.
