CN201786696U

CN201786696U - High-thrust jet type axial ventilator

Info

Publication number: CN201786696U
Application number: CN2010202465176U
Authority: CN
Inventors: 谢志江
Original assignee: ZHEJIANG ZHIJIANG FAN CO Ltd
Current assignee: ZHEJIANG ZHIJIANG FAN CO Ltd
Priority date: 2010-07-05
Filing date: 2010-07-05
Publication date: 2011-04-06
Anticipated expiration: 2020-07-05

Abstract

The utility model discloses a high-thrust jet type axial ventilator, which mainly comprises a body, a motor, an impeller, a streamline hood, a diffuser, collectors, silencers and the like. The body is in an ultra-long tubular structure, a tubular motor cavity is arranged in the center inside the body and connected with the body through a rear guide vane fixedly, the bullet-shaped diffuser is arranged at the rear end of the motor cavity, the bullet-shaped streamline hood is arranged at the front end of the impeller, the collectors are arranged at an air inlet at the most front end of the body and an air outlet at the tail end of the body respectively, and the silencers are attached to an air inlet passage at the front end of the outer wall of the body and an inner arc curved face at the rear end of the outer wall of the body respectively in a wrapping manner. Since structural components as the streamline hood, the diffuser, the collectors, the silencers and the like are adopted, static pressure efficiency of the ventilator is increased effectively and exhaust noise is reduced effectively.

Description

High thrust jet profile shaft is to ventilator

Technical field

The utility model belongs to fan-type ventilation equipment, particularly relates to a kind of high thrust jet profile shaft in places such as tunnel, basement that applies to ventilator.

Background technique

The toxic emission of vehicular tunnel and underground parking all be all the time adopt in the tunnel or the equidistant number of permutations in basement top to axial-flow blower, air is formed by draught fan impeller on site space top drive the air draught that produces from inside to outside, make the reverse air draught of this air draught and site space bottom, both form air circulation in the air place jointly, thereby reach the ventilation purpose, effectively reduce tunnel and underground parking etc. because the restriction of spatial structure own causes the discharging of toxic and harmfuls such as carbon monoxide in the place of natural air undesirable flow, special because the particularity of site surrounding, use traditional axial-flow blower equipment can produce big noise and be difficult for dispersing, so the ventilation equipment for vehicular tunnel and underground parking are selected utilization, should resist the noise that surge that front high wind and draught fan impeller operation proper velocity antagonism produces brings, it is minimum to be that the running noises of Fan Equipment own drops to again, to overcome the environmental quality that noise is difficult for dispersing.

Summary of the invention

For solving the problem that exists in the above-mentioned technology, the purpose of this utility model provides a kind of high thrust jet profile shaft to ventilator, can effectively reduce running noises and improve operational efficiency.

For achieving the above object, the technical solution adopted in the utility model provides a kind of high thrust jet profile shaft to ventilator, include body, motor, impeller, streamlined windscreen, expender, critical piece such as slip ring and silencing apparatus constitutes, wherein body is that overlength is columnar structured, the cylindrical shape motor cavity is positioned at the internal body neutral position, motor is installed in the motor cavity, motor cavity is connected and fixed by rear guide vane and body, the motor front end is provided with impeller, impeller is positioned at outside the motor cavity, the impeller shaft diameter is identical with the motor cavity diameter, the motor cavity rear end is provided with the diffuser of bullet shape, and this diffuser extension diameter is identical with the motor cavity diameter, and both are in conjunction with tight, wherein said impeller front end is provided with the streamlined windscreen of bullet shape, and this streamlined windscreen extension diameter is identical with the impeller shaft diameter, and streamlined windscreen and body are connected to a fixed by leading page, be provided with slip ring in the terminal exhaust outlet of intake grill and body position foremost at body, slip ring is an arc negative camber bell mouth shape structure, and short diameter outer is identical with the body diameter and level and smooth mutually combination is fixing, being wrapped with silencer on body outer wall front end air inlet duct and the rear end arc negative camber, also is being to be provided with the installation leg above impeller and the motor cavity position above the inwall of body stage casing.

The beneficial effect that the utility model will reach improves for the body of existing axial-flow blower, the cylindrical structure of lengthening body, and streamlined windscreen is set at the impeller mechanism front end, at the motor cavity rear portion diffuser is set, with the static pressure efficiency that improves blower fan with reduce exhaust sound; Slip ring structure in front-end and back-end can make air produce higher thrust more, but suction stream is through the major part of the total air in whole space; Be placed in the silencing apparatus of body outer wall, the noise that produces when greatly the control ventilator of degree is worked.

Description of drawings

Fig. 1 is that the high thrust jet of the utility model profile shaft is to the ventilator sectional view;

Fig. 2 is that the high thrust jet of the utility model profile shaft is to the ventilator front schematic view.

Among the figure: the 1-body, the 2-motor, the 3-impeller, the 4-streamlined windscreen, the 5-expender, the 6-slip ring, the 7-silencing apparatus, the 8-motor cavity, the 9-rear guide vane, the 10-impeller shaft, the 11-leading page, 12-installs leg, 13-intake grill, 14-exhaust outlet.

Embodiment

With specific embodiment high thrust jet profile shaft of the present utility model is illustrated to ventilator structure in conjunction with the accompanying drawings.

The disclosed high thrust jet profile shaft of the utility model is to ventilator as shown in Figure 1, comprise body 1, motor 2, impeller 3, streamlined windscreen 4, expender 5, critical pieces such as slip ring 6 and silencing apparatus 7 constitute, wherein body 1 is that overlength is columnar structured, cylindrical shape motor cavity 8 is positioned at body 1 bosom position, motor 2 is installed in the motor cavity 8, motor cavity 8 is connected and fixed by rear guide vane 9 and body 1, motor 2 front ends are provided with impeller 3, impeller 3 is positioned at outside the motor cavity 8, impeller shaft 10 diameters are identical with motor cavity 8 diameters, motor cavity 8 rear ends are provided with the diffuser 5 of bullet shape, and these diffuser 5 extension diameters are identical with motor cavity 8 diameters, and both are in conjunction with tight, wherein said impeller 3 front ends are provided with the streamlined windscreen 4 of bullet shape, and these streamlined windscreen 4 extension diameters are identical with impeller shaft 10 diameters, and streamlined windscreen 4 and body 1 are connected to a fixed by leading page 11, intake grill 13 and body 1 terminal exhaust outlet 14 positions are provided with slip ring 6 foremost at body 1, slip ring 6 is an arc negative camber bell mouth shape structure, and short diameter outer is identical with body 1 diameter and level and smooth mutually combination is fixing, being wrapped with silencer 7 on body 1 outer wall front end air inlet duct and the rear end arc negative camber, also is being to be provided with above impeller 3 and motor cavity 8 positions leg 12 is installed above the body 1 stage casing inwall.

The disclosed high thrust jet profile shaft of the utility model is to the streamlined windscreen 4 of its overlength cylinder body 1 structure of ventilator and intake grill 13 rear ends, diffuser 5 structures of exhaust outlet 14 front ends, can be from given energy when making the utility model work, produce higher thrust, but suction stream is through the major part of the total air in whole space, after the impeller work done, from exhaust outlet 14 ejection at a high speed, inject energy to the remaining part air, blow to exhaust outlet 14 ends from intake grill 13 ends again, vitiated air in the space is discharged rapidly, reach the purpose of upgrading air in the whole space.

Impeller 3 adopts major diameter, the low-angle design of innovation, and it is low and purpose that thrust is high can make exhaust outlet 13 place's air-flow thrusts increase during work to reach power consumption; Slip ring 6 can significantly reduce the frictional loss of air-flow, and the streamlined windscreen 4 that impeller 3 front ends are set can make flow rate of fan increase more than 10%, is provided with diffuser 5 at exhaust outlet 14, static pressure efficiency and reduce exhaust sound when improving work of the present utility model.

Motor 2 is selected double speed device pattern motor device for use, when meeting strong natural wind, but low cruise; The silencing apparatus 7 adaptive, the greatly noise that produces during the Control work of degree with body 1 cylindrical outer wall.

Claims

1. high thrust jet profile shaft is to ventilator, comprise body (1), motor (2), impeller (3), streamlined windscreen (4), expender (5), slip ring (6) and silencing apparatus (7), wherein motor (2) is installed in the motor cavity (8), motor cavity (8) is connected and fixed by rear guide vane (9) and body (1), motor (2) front end is provided with impeller (3), impeller (3) is positioned at outside the motor cavity (8), motor cavity (8) rear end is provided with diffuser (5), impeller (3) front end is provided with streamlined windscreen (4), and streamlined windscreen (4) and body (1) are connected to a fixed by leading page (11), body (1) intake grill (13) and the terminal exhaust outlet of body (1) (14) position foremost is provided with slip ring (6), being wrapped with silencer (7) on body (1) outer wall front end air inlet duct and the rear end arc negative camber, also is that impeller (3) and top, motor cavity (8) position are provided with installation leg (12) in inwall top, body 1 (1) stage casing.

2. high thrust jet profile shaft according to claim 1 is characterized in that to ventilator described body (1) is columnar structured for overlength.

3. high thrust jet profile shaft according to claim 1 is to ventilator, it is characterized in that described impeller shaft (10) diameter is identical with motor cavity (8) diameter, described diffuser (5) extension diameter is identical with motor cavity (8) diameter, and described streamlined windscreen (4) extension diameter is identical with impeller shaft (10) diameter.

4. high thrust jet profile shaft according to claim 1 is characterized in that to ventilator described slip ring (6) is arc negative camber bell mouth shape structure, and short diameter outer is identical with body (1) diameter and level and smooth mutually combination is fixing.