CN2259515Y

CN2259515Y - Double-speed fire-fighting high temperature smoke-eliminating fan

Info

Publication number: CN2259515Y
Application number: CN 95237601
Authority: CN
Inventors: 沈伉骧; 陈成勋; 刘谭生
Original assignee: HUANAN INDUSTRY FANS FACTORY CHANGSHA
Current assignee: HUANAN INDUSTRY FANS FACTORY CHANGSHA
Priority date: 1995-09-15
Filing date: 1995-09-15
Publication date: 1997-08-13
Anticipated expiration: 2005-09-15

Abstract

The utility model relates to a double-speed fire-fighting high temperature smoke-eliminating fan, which adopts that a two-speed electric motor is installed in a core barrel, a main impeller and a centrifugal cooling impeller are driven by the two-speed electric motor directly, cooling air is sucked in an extension tube, and a cooling air intake pipe is connected and communicated with the core barrel orderly. One end of the core barrel is connected and communicated with a cooling air outlet syphon, a cooling air discharge pipe and an air outlet pipe, and the outer wall of the core barrel is painted with high-temperature-resistant coating material. The utility model has one machine with two purposes, electrodes and the core barrel have good cooling effect, and the whole machine has long service life, low energy consumption, reliable work and good performance.

Description

Double speed fire-fighting High-temp. smoke-exhausting fan

The utility model relates to the ventilation smoke exhaust equipment in the mechanical engineering, particularly a kind of fire-fighting axial-flow blower.

Generally add common blower fan two complete equipments in the high-rise at present and carry out fire-fighting smoke evacuation and daily air conditioning ventilation with smoke exhaust fan, but scene of fire flue-gas temperature height often, the machine operation ambient temperature is well beyond its permitted value, and motor burns out easily, in fact smoke exhaust fan does not have the effect of smoke evacuation fire-fighting, simultaneously, adopt two cover blower fans, take up room, equipment is many, piping erection connects complicated, the cost height, equipment operating efficiency is low, and the blower fan resistance to high temperature is poor.

The purpose of the utility model aims to provide a kind of F of having class B insulation double-speed motor, can discharge fume in high temperature media, the double speed fire-fighting High-temp. smoke-exhausting fan of can normally ventilate at ordinary times again operation, dual-use, long service life.

Technical solution of the present utility model is: this double speed fire-fighting High-temp. smoke-exhausting fan, mainly include the core tube, cooling air air-out bend pipe, cooling air sucks extension pipe, the cooling air sucking pipe, centrifugal cooling wheel, air duct, double-speed motor, main impeller, the cooling air discharge tube, main impeller, centrifugal cooling wheel is connected and fixed with the two end axles of double-speed motor respectively, double-speed motor and centrifugal cooling wheel are installed in the core tube, core tube and main impeller are installed in the air duct, cooling air sucks extension pipe, the cooling air sucking pipe, the core tube connects successively, cooling air air-out bend pipe one end and core tube connect, the other end places in the air duct, cooling air discharge tube one end and core tube connect, the other end connects and stretches out outside the air duct, and the core drum outer wall is coated high-temperature resistant coating.

The utility model is compared with prior art, owing to adopted F class B insulation double-speed motor, make it to have the effect of dual-use, making ventilating air at ordinary times regulates, do the high temperature smoke evacuation during fire-fighting, suck extension pipe and cooling air air-out bend pipe owing to designed cooling air again, make that the interior motor cooling blast of core tube is unlikely from the indoor suction of high temperature of fire, guarantee cooling effect and overcome the defective that some dead angle cooling air can't circulate and cool off in the core tube, that section is drilled with some exhaust vents in the core tube of cooling air discharge tube, make the circulation of cooling air in the core tube more complete, the motor good cooling results, motor power-supply wire and guide line are come in and gone out by the cooling air tube hub, have prevented boiling hotization of high temperature of electric wire, electric insulation and safety have been guaranteed, therefore the utility model is reasonable in design, novel structure, reliable operation, install, use and easy to maintenance, cost is low, life-span is long, energy consumption is low, function admirable.

Fig. 1 is the utility model structural representation.

Fig. 2 is A among Fig. 1-A sectional view.

The accompanying drawing marking explanation:

1-wheel hub cover, 2-cooling air air-out bend pipe

3-core tube, 4-cooling air sucks extension pipe

5-adapter, 6-cooling air sucking pipe

7-hood 8-centrifugal cooling wheel

9-air duct, 10-double-speed motor

11-cooling air discharge tube, 12-main impeller

13-cooling air is discharged extension pipe 14-exhaust vent

Below in conjunction with accompanying drawing mode of execution of the present utility model is elaborated:

As shown in the figure, this double speed fire-fighting High-temp. smoke-exhausting fan mainly includes core tube (3), cooling air air-out bend pipe (2), cooling air sucks extension pipe (4), cooling air sucking pipe (6), centrifugal cooling wheel (8), air duct (9), double-speed motor (10), main impeller (12), cooling air discharge tube (11), main impeller (12), centrifugal cooling wheel (8) drives with double-speed motor (10) direct connection, double-speed motor (10) is installed in the core tube (3) in the cooling system, high-temperature resistant coating is gone up in the spraying of core tube (3) outer wall, cooling system is by centrifugal cooling wheel (8), take over (5), cooling air sucking pipe (6), hood (7), core tube (3), the cooling air bend pipe (2) of giving vent to anger, cooling air discharge tube (11) is formed, cooling air sucks extension pipe (4), take over (5), cooling air sucking pipe (6) connects successively, because it is extended outdoor that cooling air sucks extension pipe (4), thereby avoided high-temperature flue gas to enter cooling system, guarantee the motor ventilation cooling, cooling air sucking pipe (6) is communicated with the hood (7) of core tube termination, cool ambient air is by cooling air sucking pipe (6), under the suction function that centrifugal cooling wheel produces, after core tube (3) cool motors, divide two-way to discharge by double-speed motor (10) tail end suction stream, a part is by cooling air air-out bend pipe (2), cooling air exhaust vent (14) penetrates, drain with axial flow wind, except cooling motor, also can cool off the core tube, another part cooling air is directly discharged by cooling air discharge tube (11), cooling air air-out bend pipe (2) is two short tubes, be installed on core tube top respectively, become 90 ° of camber lines apart, one end is connected and fixed with core tube (3) and is communicated with, the other end places in the air duct (9), exhaust vent (14) perforate is on cooling air discharge tube (11), and be drilled in outside the core tube (3), that section in the air duct (9), the power line of double-speed motor (10) and guide line are come in and gone out and all are installed in central authorities in cooling air suction or the discharge tube, and by the insulating bush pipe box every, guaranteed that electric wire is unlikely by the electric leakage of boiling hotization of high temperature.

Claims

1, a kind of double speed fire-fighting High-temp. smoke-exhausting fan, it is characterized in that including core tube (3), cooling air air-out bend pipe (2), cooling air sucks extension pipe (4), cooling air sucking pipe (6), centrifugal cooling wheel (8), air duct (9), double-speed motor (10), main impeller (12), cooling air discharge tube (11), main impeller (12), centrifugal cooling wheel (8) is connected and fixed with the two end axles of double-speed motor (10), double-speed motor (10) is installed in the core tube (3) with centrifugal cooling wheel (8), core tube (3) is installed in again in the air duct (9) with main impeller (12), cooling air sucks extension pipe (4), cooling air sucking pipe (6), core tube (3) connects successively, cooling air air-out bend pipe (2) one ends and core tube (3) connect, the other end places in the air duct (9), cooling air discharge tube (11) one ends and core tube (3) connect, and the other end connects and stretches out outside the air duct (9).

2, double speed fire-fighting High-temp. smoke-exhausting fan according to claim 1 is characterized in that core tube (3) outer wall coats high-temperature resistant coating.

3, double speed fire-fighting High-temp. smoke-exhausting fan according to claim 1 is characterized in that having exhaust vent (14) on cooling air discharge tube (11).

4, double speed fire-fighting High-temp. smoke-exhausting fan according to claim 1 is characterized in that the power line of double-speed motor (10) and guide line discrepancy are installed in central authorities in cooling air suction or the discharge tube.