KR20170034098A - The wingless fan apparatus for hvac - Google Patents

The wingless fan apparatus for hvac Download PDF

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Publication number
KR20170034098A
KR20170034098A KR1020150132350A KR20150132350A KR20170034098A KR 20170034098 A KR20170034098 A KR 20170034098A KR 1020150132350 A KR1020150132350 A KR 1020150132350A KR 20150132350 A KR20150132350 A KR 20150132350A KR 20170034098 A KR20170034098 A KR 20170034098A
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KR
South Korea
Prior art keywords
fan
motor
hvac
wingless
present
Prior art date
Application number
KR1020150132350A
Other languages
Korean (ko)
Inventor
고병준
Original Assignee
대우조선해양 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR1020150132350A priority Critical patent/KR20170034098A/en
Publication of KR20170034098A publication Critical patent/KR20170034098A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a fan unit (100) installed in a duct line of an HVAC for air supply, comprising: a motor (110) installed for air intake; A wingless fan 120 in the form of a cylindrical frame installed to increase the flow rate of the air sucked through the motor 110 according to the Bernoulli principle; And an internal air supply line 130 for allowing the air introduced through the duct to be bypassed and sucked through the motor 110 and then discharged to the fan 120 without a wing. According to the present invention, the space occupied by the fan can be reduced because it is installed in a closed duct line of the HVAC of a ship and can be manufactured in a compact size, and sufficient flow can be secured even with a small capacity motor and fan. Not only can there be a significant reduction in noise.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fanless fan apparatus for an HVAC,

The present invention relates to a wingless fan apparatus, and more particularly to a wingless fan apparatus for an HVAC installed in a duct line of an HVAC for air supply.

In general, when a large-capacity air supply is required for heating, ventilating, and air conditioning (HVAC), a fan 2 is installed on the duct line 1 as shown in FIG. Respectively.

In order to install the large fan 2, it is necessary to secure a sufficient space on the duct line 1, and noise and vibration generated by the large fan 2 during operation of the large fan 2 become very large, And additional costs due to installation are required.

On the other hand, in the case of a wingless fan, it is possible to secure a sufficient flow rate even by using a smaller capacity motor as compared with a conventional winged fan, thereby achieving the same cooling effect.

2, the air sucked through the lower motor 3 increases in flow velocity in accordance with Bernoulli principle inside the circular wing 4, and this causes the suction amount The flow of air is induced so as to send a rich flow rate of about 15 times.

Therefore, it is expected that when the principle of fanless fan is applied in manufacturing a fan, the space occupied by the motor and the fluid noise can be reduced.

Accordingly, it is an object of the present invention to provide a wingless fan apparatus for HVAC capable of reducing a space occupied by a fan motor and capable of securing a sufficient flow rate even with a small capacity motor, thereby reducing motor noise. It has its purpose.

According to an aspect of the present invention, there is provided a fan apparatus for a fanless fan for an HVAC, the fan apparatus being installed in a duct line of an HVAC for air supply, the fan apparatus comprising: A wingless fan in the form of a cylindrical frame installed to increase the flow rate of the air sucked through the motor according to the Bernoulli principle; And an internal air supply line for allowing air introduced through the duct to be bypassed, sucked through the motor, and then discharged to a fan without wing.

Here, the wingless fan may have an airfoil inside the cylindrical mold so that the inflow fluid flows in the circumferential direction of the cylindrical mold and eventually escapes in the axial direction of the cylindrical mold.

In addition, a guide vane may be installed on the inner surface of the wingless fan to guide the fluid in the axial direction of the cylindrical mold.

In addition, a plurality of the guide vanes may be provided at predetermined intervals, and may be slightly shifted from each other among the plurality of guide vanes so that the flow direction of the fluid gradually changes in the axial direction of the cylindrical mold.

In addition, the installation angles between the plurality of guide vanes may be gradually increased to control the flow rate distribution of the fluid.

According to the present invention, the space occupied by the fan can be reduced because it is installed in a closed duct line of the HVAC of the ship and can be manufactured in a compact size, and sufficient flow can be secured even with a small capacity motor and fan. Not only can it be exercised, but also the noise can be greatly reduced.

1 is a conceptual diagram in which a fan is installed in a conventional duct line;
2 is a view for explaining the principle of a wingless fan;
3 is a conceptual view of a wingless fan apparatus for an HVAC according to the present invention.
4 is a conceptual view of a fan without wing having an airfoil portion according to the present invention.
5 and 6 are conceptual views of a wingless fan with a guide vane installed according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 3 is a conceptual view of a wingless fan apparatus for an HVAC according to the present invention, FIG. 4 is a conceptual view of a wingless fan having an airfoil section according to the present invention, and FIGS. 5 and 6 are conceptual diagrams of a wingless fan equipped with a guide vane to be.

The present invention provides a wingless fan apparatus for an HVAC according to the present invention, which can reduce a space occupied by a fan motor and can secure a sufficient flow rate even with a small capacity motor, thereby reducing motor noise.

As shown in FIG. 3, the fanless fan device 100 for an HVAC according to the present invention is a fan device installed in a duct line 1 of an HVAC for air supply, and includes a motor 110 And a wingless fan 120 in the form of a cylindrical frame installed to increase the flow rate of the air sucked through the motor 110 according to the Bernoulli principle.

In this case, the fan-less fan apparatus 100 for an HVAC according to the present invention is configured such that the air introduced through the duct 1 is bypassed and sucked through the motor 110, And an internal air supply line 130 for the internal air supply line 130.

4, the wingless fan 120 is provided with an airfoil 122 (see FIG. 4) inside the cylindrical mold so that the inflow fluid flows in the circumferential direction of the cylindrical mold and eventually escapes in the axial direction of the cylindrical mold. ).

5, a guide vane 124 may be installed on the inner surface of the wingless fan 130 to guide the fluid in the axial direction of the cylindrical mold.

In other words, the fluid that has flowed into the cylindrical mold of the wingless fan 120 through the duct line 1 turns in the circumferential direction, turns along the cylindrical mold, and finally exits in the axial direction of the cylindrical mold. In this process, if the flow direction changes direction in the axial direction and does not smooth out, the energy loss due to the friction with the surface may occur more. At this time, the noise and vibration are increased, and the pressure drop is increased. Therefore, the guide vane 124 is installed in the cylindrical mold to guide the flow direction in the axial direction, thereby reducing energy loss due to surface friction.

5, a plurality of guide vanes 124 may be installed at regular intervals, and a plurality of guide vanes 124 may be provided between the guide vanes 124 such that the flow direction of the fluid gradually changes in the axial direction of the cylindrical frame. It can be installed slightly shifted. Therefore, the flow direction of the fluid gradually changes along the flow path, and the flow rate exiting to the outside can be evenly distributed.

As shown in FIG. 6, the guide vanes 124 may be installed such that the guide vanes 124 are slightly increased in installation angle so that the degree of fluid distribution can be appropriately adjusted.

As described above, the wingless fan apparatus for an HVAC according to the present invention is installed in a closed duct line of a HVAC of a ship by applying the principle of a wingless fan, and can be manufactured in a compact size, , And a sufficient flow rate can be secured even with a small-capacity motor and a fan, so that a great effect can be obtained and noise can be greatly reduced.

While the present invention has been described with respect to a limited number of embodiments, it is to be understood that the scope of the present invention is not limited to the specific embodiments, Various modifications, alterations, and alterations can be made within the scope of the present invention.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

100: fan unit 110: motor
120: wingless fan 122: airfoil portion
124: guide vane 130: internal air supply line

Claims (5)

A fan apparatus (100) installed in a duct line of an HVAC for air supply,
A motor 110 installed for air intake;
A wingless fan 120 in the form of a cylindrical frame installed to increase the flow rate of the air sucked through the motor 110 according to the Bernoulli principle;
And an internal air supply line (130) for allowing the air introduced through the duct to be bypassed and sucked through the motor (110) and then discharged to the wingless fan (120) Device. The method according to claim 1,
Characterized in that the wingless fan (120) has an airfoil portion (122) in the interior of the cylindrical mold so that the inflow fluid flows in the circumferential direction of the cylindrical mold and eventually escapes in the axial direction of the mold. Fan device. The method of claim 2,
And a guide vane (124) is installed on the inner side surface of the wingless fan (130) to guide the fluid in the axial direction of the cylindrical mold. The method of claim 3,
Wherein a plurality of the guide vanes (124) are installed at regular intervals and are slightly shifted from each other among the plurality of guide vanes (124) so that the flow direction of the fluid gradually changes in the axial direction of the cylindrical mold . The method of claim 4,
Wherein the plurality of guide vanes (124) are installed so that the installation angle is gradually increased between the guide vanes (124) so as to control the flow rate distribution of the fluid.
KR1020150132350A 2015-09-18 2015-09-18 The wingless fan apparatus for hvac KR20170034098A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150132350A KR20170034098A (en) 2015-09-18 2015-09-18 The wingless fan apparatus for hvac

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150132350A KR20170034098A (en) 2015-09-18 2015-09-18 The wingless fan apparatus for hvac

Publications (1)

Publication Number Publication Date
KR20170034098A true KR20170034098A (en) 2017-03-28

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KR1020150132350A KR20170034098A (en) 2015-09-18 2015-09-18 The wingless fan apparatus for hvac

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190115878A (en) * 2018-04-04 2019-10-14 주식회사 선포탈 Solar Light System

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190115878A (en) * 2018-04-04 2019-10-14 주식회사 선포탈 Solar Light System

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E601 Decision to refuse application