CN209195765U - A kind of centrifugal blower for preventing inner air from flowing back - Google Patents

A kind of centrifugal blower for preventing inner air from flowing back Download PDF

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Publication number
CN209195765U
CN209195765U CN201821707550.7U CN201821707550U CN209195765U CN 209195765 U CN209195765 U CN 209195765U CN 201821707550 U CN201821707550 U CN 201821707550U CN 209195765 U CN209195765 U CN 209195765U
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Prior art keywords
centrifugal blower
air
impeller
ontology
blower ontology
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CN201821707550.7U
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Chinese (zh)
Inventor
杨晓东
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JIANGSU JINGCAI FAN MANUFACTURING Co Ltd
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JIANGSU JINGCAI FAN MANUFACTURING Co Ltd
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Abstract

A kind of centrifugal blower for preventing inner air from flowing back, including centrifugal blower ontology, the side of the centrifugal blower ontology is bolted equipped with cover board, motor is fixedly mounted in the other side of centrifugal blower ontology, and the shaft of motor runs through centrifugal blower ontology, the inner tip side of the centrifugal blower ontology offers air outlet, the two sides of the bottom of the centrifugal blower ontology, which are welded, is equipped with supporting leg, reset spring is provided between the supporting leg and support base of the utility model, the vibration between centrifugal blower and ground can be reduced, in addition sound-isolating sponge is provided in the shell interlayer of centrifugal blower, compared to traditional equipment, noise content is generated to be obviously reduced;When centrifugal blower operation, when air passes through fixed blade gap, the initial velocity for being directed toward air outlet is obtained, therefore air is consistent in centrifugal blower body interior direction of rotation, will not generate reflux situation, compare traditional equipment, working efficiency is higher.

Description

A kind of centrifugal blower for preventing inner air from flowing back
Technical field
The utility model relates to centrifugal blower technical field, specially a kind of centrifugal blower for preventing inner air from flowing back.
Background technique
Centrifugal blower is to improve gas pressure by the mechanical energy of input and supply gas side by side the machinery of body, it is a kind of driven Fluid machinery, it is widely used in the ventilation of factory, tunnel, cooling tower and building, dust discharge and cooling, and existing centrifugation Blower has the following disadvantages, first is that there is reflux situation in internal body in the air of centrifugal blower sucking, i.e., cannot completely from Ventilation opening discharge, influences the efficiency of centrifugal blower work;Second is that a large amount of air is inhaled into centrifugal blower, body is caused to tremble It is dynamic, huge noise is generated, the staff of surrounding is arrived in puzzlement, for this purpose, the utility model proposes one kind to prevent inner air from flowing back Centrifugal blower solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of centrifugal blowers for preventing inner air from flowing back, to solve above-mentioned background The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of centrifugation for preventing inner air from flowing back Blower, including centrifugal blower ontology, the side of the centrifugal blower ontology are bolted equipped with cover board, centrifugal blower ontology The other side be fixedly mounted motor, and the shaft of motor run through centrifugal blower ontology, the inner tip of the centrifugal blower ontology Side offers air outlet, and the two sides of the bottom of the centrifugal blower ontology, which are welded, is equipped with supporting leg, the bottom end of the supporting leg Two sides are fixedly connected with equipped with reset spring, and the reset spring is all connected with far from one end of supporting leg equipped with support base, institute Stating support base is hollow structure, and the bottom of the reset spring and supporting leg is placed in the inside of support base, it is described from Offer filled layer in heart fan body, be filled with sound-isolating sponge in the filled layer, the centrifugal blower ontology it is interior The second impeller is fixedly mounted in portion, and second impeller is made of ring baffle and fixed blade, and the ring baffle quantity is Two pieces, the fixed blade is tiltedly mounted between two pieces of ring baffles, and second impeller is internally provided with the first impeller, First impeller is made of front apron, rotating vane and rear baffle, and rotating vane is tiltedly mounted on front apron and rear gear Between plate.
Preferably, the shaft of the motor is fixedly connected with the rear baffle of the first impeller, and the first impeller and the second impeller Between do not contact.
Preferably, the outside diameter of second impeller is less than the inside diameter of centrifugal blower ontology.
Preferably, the fixed blade and the quantity of rotating vane are not less than 20, and the inclination of fixed blade Angle is different, and the tilt angle of rotating vane is different, and the tilt angle of the two is opposite.
Compared with prior art, the utility model has the beneficial effects that
1. being provided with reset spring between the supporting leg and support base of the utility model, centrifugal blower and ground can be reduced Between vibration, be in addition provided with sound-isolating sponge in the shell interlayer of centrifugal blower, compare traditional equipment, generate noise content it is obvious Reduce;
2. when centrifugal blower operation, when air passes through fixed blade gap, obtaining the initial velocity for being directed toward air outlet, therefore Air is consistent in centrifugal blower body interior direction of rotation, will not generate reflux situation, compares traditional equipment, working efficiency is more It is high.
Detailed description of the invention
Fig. 1 is the utility model Structure explosion diagram;
Fig. 2 is the utility model structure front section view;
Fig. 3 is the utility model appearance diagram.
In figure: 1 centrifugal blower ontology, 2 cover boards, 3 supporting legs, 4 support bases, 5 reset springs, 6 motors, 7 sound-isolating sponges, 8 second impellers, 801 ring baffles, 802 fixed blades, 9 first impellers, 901 front aprons, 902 rotating vanes, 903 rear baffles.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of centrifugation wind for preventing inner air from flowing back Machine, including centrifugal blower ontology 1, the side of centrifugal blower ontology 1 are bolted equipped with cover board 2, centrifugal blower ontology 1 Motor 6 is fixedly mounted in the other side, and the shaft of motor 6 runs through centrifugal blower ontology 1, the inner tip one of centrifugal blower ontology 1 Side offers air outlet, and the two sides of the bottom of centrifugal blower ontology 1, which are welded, is equipped with supporting leg 3, and the bottom end two sides of supporting leg 3 are solid Surely it is connected with reset spring 5, reset spring 5 is all connected with far from one end of supporting leg 3 equipped with support base 4, support base 4 For hollow structure, the bottom of reset spring 5 and supporting leg 3 is placed in the inside of support base 4, when centrifugal blower operation, Shock conditions can be generated, and be provided with reset spring 5 between centrifugal blower ontology 1 and support base 4, thus support base 4 with It does not collide between ground and generates noise;
Filled layer is offered in centrifugal blower ontology 1, sound-isolating sponge 7 has been filled in filled layer, and sound-isolating sponge 7 can have Effect stops the noise generated inside centrifugal blower ontology 1;
The second impeller 8 is fixedly mounted in the inside of centrifugal blower ontology 1, and the second impeller 8 is by ring baffle 801 and fixed leaf Piece 802 is constituted, and 801 quantity of ring baffle is two pieces, and fixed blade 802 is tiltedly mounted between two pieces of ring baffles 801, and second Impeller 8 is internally provided with the first impeller 9, and the first impeller 9 is made of front apron 901, rotating vane 902 and rear baffle 903, And rotating vane 902 is tiltedly mounted between front apron 901 and rear baffle 903, the first impeller 9 rotation sucking air, air warp Behind 802 gap of fixed blade on second impeller 8, certain initial velocity for being directed toward air outlet is obtained, therefore air is in centrifugation wind The internal rotating direction of machine ontology 1 is consistent, will not generate reflux situation.
The shaft of motor 6 is fixedly connected with the rear baffle 903 of the first impeller 9, and between the first impeller 9 and the second impeller 8 It does not contact, but gap very little therebetween.
The outside diameter of second impeller 8 is less than the inside diameter of centrifugal blower ontology 1, air through and between flow to behind gap Air outlet.
Fixed blade 802 and the quantity of rotating vane 902 are not less than 20, and the inclination angle of fixed blade 802 Spend different, the tilt angle of rotating vane 902 is different, and the two tilt angle on the contrary, rotating vane 902 work With being sucking air, the effect of fixed blade 802 is so that air obtains the initial velocity of certain orientation.
Working principle: when the utility model is used, starting motor 6, motor 6 drive the rotation of the first impeller 9, pivoting leaf first When piece 902 rotates, air is quickly sucked, air enters inside centrifugal blower ontology 1 through the gap of rotating vane 902, works as air When by 802 gap of fixed blade on the second impeller 8, obtain certain initial velocity for being directed toward air outlet, thus air from The internal rotating direction of heart fan body 1 is consistent, therefore will not generate reflux situation, and in centrifugal blower operation, body can occur Acutely shake, and reset spring 5 plays buffer function, can avoid colliding between support base 4 and ground, and is centrifuged wind It is provided with sound-isolating sponge 7 in the shell interlayer of machine, the generation of noise can be reduced, overall work principle is simple, easy to operate.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of centrifugal blower for preventing inner air from flowing back, including centrifugal blower ontology (1), it is characterised in that: the centrifugation The side of fan body (1) is bolted equipped with cover board (2), and motor is fixedly mounted in the other side of centrifugal blower ontology (1) (6), and the shaft of motor (6) runs through centrifugal blower ontology (1), and the inner tip side of the centrifugal blower ontology (1) opens up There is air outlet, the two sides of the bottom of the centrifugal blower ontology (1), which are welded, is equipped with supporting leg (3), the bottom end of the supporting leg (3) Two sides are fixedly connected with equipped with reset spring (5), and the reset spring (5) is all connected with far from the one end of supporting leg (3) and is equipped with branch It supports pedestal (4), the support base (4) is hollow structure, and the bottom of the reset spring (5) and supporting leg (3) is placed in The inside of support base (4) offers filled layer in the centrifugal blower ontology (1), be filled in the filled layer every The second impeller (8) are fixedly mounted in the inside of sound sponge (7), the centrifugal blower ontology (1), and second impeller (8) is by annular Baffle (801) and fixed blade (802) are constituted, and ring baffle (801) quantity is two pieces, the fixed blade (802) It being tiltedly mounted between two pieces of ring baffles (801), second impeller (8) is internally provided with the first impeller (9), and described One impeller (9) is made of front apron (901), rotating vane (902) and rear baffle (903), rotating vane (902) inclination It is mounted between front apron (901) and rear baffle (903).
2. a kind of centrifugal blower for preventing inner air from flowing back according to claim 1, it is characterised in that: the motor (6) shaft is fixedly connected with the rear baffle (903) of the first impeller (9), and between the first impeller (9) and the second impeller (8) not Contact.
3. a kind of centrifugal blower for preventing inner air from flowing back according to claim 1, it is characterised in that: second leaf The outside diameter for taking turns (8) is less than the inside diameter of centrifugal blower ontology (1).
4. a kind of centrifugal blower for preventing inner air from flowing back according to claim 1, it is characterised in that: the fixed leaf The quantity of piece (802) and rotating vane (902) is not less than 20, and each not phase of the tilt angle of fixed blade (802) Together, the tilt angle of rotating vane (902) is different, and the tilt angle of the two is opposite.
CN201821707550.7U 2018-10-22 2018-10-22 A kind of centrifugal blower for preventing inner air from flowing back Active CN209195765U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821707550.7U CN209195765U (en) 2018-10-22 2018-10-22 A kind of centrifugal blower for preventing inner air from flowing back

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821707550.7U CN209195765U (en) 2018-10-22 2018-10-22 A kind of centrifugal blower for preventing inner air from flowing back

Publications (1)

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CN209195765U true CN209195765U (en) 2019-08-02

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110762037A (en) * 2019-10-28 2020-02-07 浙江上风高科专风实业有限公司 Energy-saving noise-reducing multi-model-level centrifugal fan
CN112065747A (en) * 2020-09-10 2020-12-11 江西艾斯欧匹精密智造科技有限公司 Fan convenient to installation
CN112112822A (en) * 2020-09-16 2020-12-22 江西艾威尔压缩机有限公司 Centrifugal fan capable of controlling blowing direction
CN113074125A (en) * 2021-04-19 2021-07-06 宿迁苏博科技信息有限公司 Novel centrifugal fan

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110762037A (en) * 2019-10-28 2020-02-07 浙江上风高科专风实业有限公司 Energy-saving noise-reducing multi-model-level centrifugal fan
CN112065747A (en) * 2020-09-10 2020-12-11 江西艾斯欧匹精密智造科技有限公司 Fan convenient to installation
CN112112822A (en) * 2020-09-16 2020-12-22 江西艾威尔压缩机有限公司 Centrifugal fan capable of controlling blowing direction
CN113074125A (en) * 2021-04-19 2021-07-06 宿迁苏博科技信息有限公司 Novel centrifugal fan

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