CN2225563Y

CN2225563Y - Oblique flow fan with front gwiding adjustable mechanism

Info

Publication number: CN2225563Y
Application number: CN95212968U
Authority: CN
Inventors: 许占奎; 梁智; 任树勋
Original assignee: DANGDAI COMPOSITE MATERIAL Co Ltd BEIJING
Current assignee: DANGDAI COMPOSITE MATERIAL Co Ltd BEIJING
Priority date: 1995-06-14
Filing date: 1995-06-14
Publication date: 1996-04-24
Anticipated expiration: 2005-06-14

Abstract

The utility model relates to a ventilator, particularly a novel oblique flow fan with a front guiding adjustable mechanism with high wind rate and high wind pressure; the oblique flow fan with a front guiding adjustable mechanism is composed of a front guiding adjustable mechanism, an external cylinder, fan movable blades, fan stationary blades, a wheel boss, an inner cylinder, a motor, a diffuser, a supporting bracket, etc. In the utility model, an improved impeller and blades are adopted; the front guiding adjustable mechanism is used to adjust the flow capacity and the pressure of a fan according to the needs of users. Therefore, the utility model has the advantages of high wind rate, high wind pressure, compactness, low material consumption, low cost, convenient installation and low cost. Compared with a centrifugal fan, the highest full pressure efficiency of the fan can reach 86.5%. On equal indexes, the oblique flow fan with a front guiding adjustable mechanism can save steel products by about 50%, and reduce about one third of the area of ground occupation; the price of the oblique flow fan with a front guiding adjustable mechanism is much lower than the price of a centrifuger.

Description

Diagonal flow fan with leading adjusting mechanism

The utility model relates to a kind of ventilation equipment, the novel diagonal flow fan with leading adjusting mechanism that particularly a kind of air quantity is big, blast is high.

The blower fan of traditional big air quantity, high blast adopts centrifugal blower usually, and the centrifugal blower volume is big, the consumption material is many, cost is high, installation workload is big and cost is high.

The purpose of this utility model is to adopt leading adjusting mechanism, utilize aerodynamic principle, provide that a kind of air quantity is big, blast is high, and can change air quantity, blast size, volume is little, consume material is few, low-cost, easy for installation and energy-conservation cost is low diagonal flow fan.

The purpose of this utility model realizes by following technological scheme.Get leading adjusting mechanism, urceolus, wind motor leaf, blower fan stator blade, wheel hub, motor, inner core, Diffuser, support etc. ready, motor props up muscle with motor and is fixed on the inner core, inner core is fixed on the urceolus with stator blade, wind motor leaf is fixed on forms impeller on the wheel hub, impeller is fixed on the motor shaft, and support and urceolus welding are fixing, Diffuser is fixed on the inner core, support and urceolus welding are fixing, and leading mechanism and urceolus fix, and promptly constitute the diagonal flow fan with leading adjusting mechanism.

Leading adjusting mechanism is by air guide sleeve, the collection air port, wing blades, preceding fluid director urceolus, handle, regulate dial, sieve leads to handle, sieve leads to handle bracket, axle on the preceding stator, preceding stator, preceding stator lower shaft, garden ring band iron, garden ring band iron support, the wire rope fixing bolt, pulley, wire rope constitutes, air guide sleeve is fixed on the collection air port by wing blades, the collection air port is fixed on the urceolus, axle is fixing on preceding stator one end and the preceding stator, the preceding stator the other end and preceding stator lower shaft fix, preceding stator can twist between air guide sleeve and preceding fluid director urceolus, axle fixed pulley on the preceding stator, axle is wherein arranged on the preceding stator with pulley with regulate dial and fix, handle and garden ring band iron are fixed, garden ring band iron and garden ring band iron support are fixed on the preceding fluid director urceolus, logical handle of sieve and the logical handle bracket of sieve are fixed on the preceding fluid director urceolus, wire rope after the week, is fixed on wire rope on the ring band iron of garden by the wire rope fixing bolt on the pulley.

Urceolus is straight tube; Wheel hub adopts the oblique flow form, the CONCENTRIC REDUCER diameter of wheel hub is respectively with the ratio of impeller diameter: diameter at butt end 0.9～0.4, top diameter 0.6～0.2, the angle β of CONCENTRIC REDUCER is between 10 °～30 °, α is between 45 °～80 °, and wing blades adopts two arc formings; Before the stator reference angle be 65 °～85 °, preceding stator be shaped as decrescence radius arc shape.

The utility model has adopted improved impeller and blade; adopt leading adjusting mechanism, can be according to user's needs, under not shutdown situation; regulate the flow and the pressure of blower fan; thereby not only air quantity was big, blast is high but also volume is little, it is few to consume material to make it, and cost is low, easy for installation, cost is low, and the highest total pressure efficiency of blower fan amount can reach 86.5%; compare with centrifugal blower; this machine can be saved about 50% steel on equal index, reduce by about 1/3rd floor space, and price is than low many of centrifuge.Pressure coefficient is higher than axial-flow blower, and flow coefficient is higher than centrifugal blower, the ventilation and air conditioning engineering of the most suitable pipeline pressurization and air-supply, building, the air-supply in warehouse, workshop and the narrow and small place of air draft and space.

Below in conjunction with drawings and Examples the utility model is described in further detail:

Fig. 1 is the utility model structural representation

Fig. 2 is a wheel hub structure schematic representation of the present utility model

Fig. 3 launches schematic representation for the utility model wing blades

Fig. 4 is a wing blades cross-sectional view of the present utility model

Referring to figs. 1 through Fig. 4, get leading adjusting mechanism, urceolus 12, wind motor leaf 13, blower fan stator blade 15, wheel hub 14, motor 16, inner core 17, Diffuser 18, support 19 ready, motor 16 usefulness motors prop up muscle and are fixed on the inner core 17, inner core 17 usefulness blower fan stator blades 15 are fixed on the urceolus 12, wind motor leaf 13 is fixed on the wheel hub 14 forms impeller, and impeller is fixed on 16 in the motor, and support 19 is fixing with urceolus 12 welding, Diffuser 18 is fixed on the inner core 17, and leading adjusting mechanism and urceolus 12 fix;

Leading adjusting mechanism is by air guide sleeve 1, collection air port 2, wing blades 3, preceding fluid director urceolus 4, handle 5, regulate dial 6, sieve leads to handle 7, sieve leads to handle bracket 8, axle 9 on the preceding stator, preceding stator 10, preceding stator lower shaft 11, garden ring band iron 20, garden ring band iron support 21, wire rope fixing bolt 22, pulley 23, wire rope 24 constitutes, air guide sleeve 1 is fixed on the collection air port 2 by wing blades 3, collection air port 2 is fixed on the preceding fluid director urceolus 4, axle 9 is fixing on preceding stator 10 1 ends and the preceding stator, the other end and preceding stator lower shaft 11 fix, preceding stator 10 can twist between air guide sleeve 1 and preceding fluid director urceolus 4, axle 9 fixed pulleys 23 on the preceding stator, axle 9 and pulley 23 are wherein arranged on the preceding stator and regulate dial 6 fixing, handle 5 is fixing with garden ring band iron 20, garden ring band iron 20 is fixed on the preceding fluid director urceolus 4 with garden ring band iron support 21, the logical handle 7 of sieve is fixed on the preceding fluid director urceolus 4 with the logical handle bracket 8 of sieve, wire rope 24 after the week, is fixed on wire rope 24 on the ring band iron 20 of garden by wire rope fixing bolt 22 on the pulley 23.

Urceolus 12 is straight tube; Wheel hub 14 adopts the oblique flow form, the CONCENTRIC REDUCER diameter that wheel hub 14 is taken turns is respectively with the ratio of the diameter of impeller: diameter at butt end 0.9～0.4, top diameter 0.6～0.2, the angle β of CONCENTRIC REDUCER is between 10 °～30 °, α is 45 °～80 °, wing blades 3 adopts Gothic, before stator 10 be shaped as decrescence radius arc shape, the reference angle of preceding stator 10 is 65 °～85 °.

Claims

1. diagonal flow fan with leading adjusting mechanism, comprise urceolus [12], wind motor leaf [13], wheel hub [14], blower fan stator blade [15], motor [16], inner core [14], Diffuser [18], support [19], it is characterized in that described diagonal flow fan also comprises leading adjusting mechanism, motor [16] props up muscle with motor and is fixed on the inner core [17], inner core [17] is fixed on the urceolus [12] with blower fan stator blade [15], wind motor leaf [13] is fixed on wheel hub [14] and goes up the composition impeller, impeller is fixed on motor [16] axle, support [19] is fixing with urceolus [12] welding, Diffuser [18] is fixed on the inner core [17], and leading adjusting mechanism and urceolus [12] fix; Leading adjusting mechanism is by air guide sleeve [1], collection air port [2], wing blades [3], preceding fluid director urceolus [4], handle [5], regulate dial [6], sieve leads to handle [7], sieve leads to handle bracket [8], axle [9] on the preceding stator, preceding stator [10], preceding stator lower shaft [11], garden ring band iron [20], garden ring band iron support [21], wire rope fixing bolt [22], pulley [23], wire rope [24] constitutes, air guide sleeve [1] is fixed on the collection air port [2] by wing blades [3], collection air port [2] is fixed on the preceding fluid director urceolus [4], axle [9] is fixing on preceding stator [10] one ends and the preceding stator, the other end and preceding stator lower shaft [11] fix, preceding stator [10] can twist between air guide sleeve [1] and preceding fluid director urceolus [4], axle [9] fixed pulley [23] on the preceding stator, axle [9] is wherein arranged on the preceding stator with pulley [23] with regulate dial [6] and fix, handle [5] is fixing with garden ring band iron [20], garden ring band iron [20] is fixed on the preceding fluid director urceolus [4] with garden ring band iron support, sieve leads to handle [7] and is fixed on the preceding fluid director urceolus [4] with the logical handle bracket [8] of sieve, wire rope [24], was fixed on wire rope [24] on the garden ring band iron [20] by wire rope fixing bolt [22] after the last week around pulley [23].

2. diagonal flow fan as claimed in claim 1 is characterized in that described urceolus [12] is straight tube.

3. diagonal flow fan as claimed in claim 1, it is characterized in that described wheel hub [14] adopts the oblique flow form, the CONCENTRIC REDUCER diameter of the wheel of wheel hub [14] is respectively with the diameter ratio of impeller: diameter at butt end 0.9～0.4, top diameter 0.6～0.2, the angle β of CONCENTRIC REDUCER is between 10 °～30 °, and α is between 45 °～80 °.

4. diagonal flow fan as claimed in claim 1 is characterized in that described wing blades [3] adopts Gothic.

5. diagonal flow fan as claimed in claim 1, it is characterized in that described before stator [10] be shaped as decrescence radius arc shape, the reference angle of preceding stator [10] is 65 °～85 °.