KR101850942B1 - A ring blower having noise prevention structure - Google Patents

A ring blower having noise prevention structure Download PDF

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Publication number
KR101850942B1
KR101850942B1 KR1020160008143A KR20160008143A KR101850942B1 KR 101850942 B1 KR101850942 B1 KR 101850942B1 KR 1020160008143 A KR1020160008143 A KR 1020160008143A KR 20160008143 A KR20160008143 A KR 20160008143A KR 101850942 B1 KR101850942 B1 KR 101850942B1
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KR
South Korea
Prior art keywords
cooling air
noise
sealing cover
cooling
ring blower
Prior art date
Application number
KR1020160008143A
Other languages
Korean (ko)
Other versions
KR20170088158A (en
Inventor
이재복
전병준
이강원
Original Assignee
(주) 엠에이케이
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Priority to KR1020160008143A priority Critical patent/KR101850942B1/en
Publication of KR20170088158A publication Critical patent/KR20170088158A/en
Application granted granted Critical
Publication of KR101850942B1 publication Critical patent/KR101850942B1/en

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    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/5846—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling by injection
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K7/00—Sirens
    • G10K7/06—Sirens in which the sound-producing member is driven by a fluid, e.g. by a compressed gas
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The noise blowing structure ring blower according to the present invention is characterized in that the noise blowing structure ring blower according to the present invention is provided with a noise preventing structure ring blower Ring blower with fan; RING BLOWER; A sealing cover for covering the ring blower from the outside so as to be blocked from the outer space; A cooling air inlet formed in the sealing cover behind the cooling fan through the sealing cover; A noise isolation cooling air supply unit coupled to the cooling air inlet for supplying cooling air to the cooling air inlet and supplying external cooling air in a state in which noise leakage is blocked; A cooling air outlet formed through the sealing cover in a direction in which the cooling air having undergone the cooling action out of the sealing cover is discharged; And a cooling air outlet which is provided to block the cooling air outlet and through which the cooling air flows out in a state in which the noise leakage is blocked.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ring-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ring blower, and more particularly, to a noise blowing structure ring blower in which noise generated during operation of a ring blower is prevented from leaking to the outside to minimize noise generation.

Generally, Ring Blower is a kind of blower that can be operated with high discharge pressure and suction force while having a simple structure composed of a finely impregnated ring type impeller and casing which is fastened to a motor to be.

When the impeller is rotated, high pressure air flows to the discharge port as pressure of the suction air is increased due to the centrifugal force of the impeller, and this air is pressed into the casing and vortex motion occurs between the impeller blades and the vanes, And it is a high efficiency blower which can obtain 7 ~ 8 times higher pressure than the TURBO blower.

In addition, the ring blower is free from the use of oil, and the air is clean, the air flow is continuous without pulsation, the orientation is not restricted by the orientation, and the maintenance is less, Press machines, packaging machines, medical machine industries, washing machines such as dehydrators, ventilation of various kinds of pollution places, and installation of discharge devices.

FIG. 1 is an exploded perspective view showing a conventional ring blower. The conventional ring blower 1 sucks outside air through a suction pipe 6 and discharges it through a discharge pipe 7 with compressed high-pressure and high- A motor M serving as a power means is mounted on one side of the lower casing 3 and an impeller 5 is mounted on the shaft of the motor M and installed on the side of the impeller 5, And a flow path 4 is formed in the upper and lower casings 2 and 3 and the upper and lower casings 2 and 3 having a bearing B for supporting the shaft.

The air sucked through the suction pipe 6 flows into the flow path 4 formed in the casings 2 and 3 and is discharged through the discharge pipe 7 into the high pressure air.

Such a ring blower raises the temperature of the bearing B due to the friction heat between the impeller 5 and the casings 2 and 3 and the air due to air compression and the friction between the bearings B due to the high- 1, a cooling fan F for cooling the motor, the bearing, and the casing by introducing the cooling air into the rear end of the motor M is installed for the purpose of shortening or overheating the motor .

The cooling air introduced by the cooling fan F is discharged to the rear side of the casing after passing through the motor M and cooling the bearings B and the casings 2 and 3. [

However, as described above, the conventional ring blower 1 having such a structure has a problem that a lot of noise is generated due to the high-speed rotation of the motor M and the flow of the high-pressure discharge air generated thereby. Such noise causes the work environment to be poor and causes the efficiency of the work to be lowered.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a noise preventing structure ring blower in which noises generated during operation of a ring blower are prevented from leaking to the outside to minimize noise.

According to an aspect of the present invention, there is provided a noise-preventing structure ring blower comprising: a ring blower having a cooling fan behind a motor; A sealing cover for covering the ring blower from the outside so as to be blocked from the outer space; A cooling air inlet formed in the sealing cover behind the cooling fan through the sealing cover; A noise isolation cooling air supply unit coupled to the cooling air inlet for supplying cooling air to the cooling air inlet and supplying external cooling air in a state in which noise leakage is blocked; A cooling air outlet formed through the sealing cover in a direction in which the cooling air having undergone the cooling action out of the sealing cover is discharged; And a cooling air outlet which is provided to block the cooling air outlet and through which the cooling air flows out in a state in which the noise leakage is blocked.

According to another aspect of the present invention, the cooling air supply unit includes an air inlet connected to the sealing cover and having a first air passage opened in the direction of the cooling air inlet. A second air passage formed through one side of the air inlet case; And a first noise blocking board formed by cutting off the second air passage and introducing the cooling air in a state in which noise leakage is blocked.

In addition, the first noise isolation board may include a shield plate made of stainless steel and having a plurality of mounting holes in a matrix shape; And a plurality of silencers installed in the plurality of installation holes in a threaded manner to pass air and block noise.

Further, the silencer according to the present invention includes: a screw body having an air passage hole formed at the center thereof and a screw surface formed on an outer circumferential surface thereof; And a noise group provided on one side of the body and made of a porous material.

In the present invention, the sealing cover is preferably made of stainless steel.

Further, in the present invention, the cooling air outlet is formed of a stainless steel material and has a plurality of mounting holes in a matrix shape; And a plurality of silencers installed in the plurality of installation holes in a threaded manner to pass air and block noise.

Further, in the present invention, it is preferable that the cooling air outflow portions are provided on both side walls of the sealing cover.

According to the present invention, there is an advantage in that the ring blower can be operated in a state in which noise is blocked by a sealing cover which completely surrounds the ring blower, a cooling air supply portion through which the cooling air is passed in the noise shielding state, and a cooling air outlet.

1 is an exploded perspective view showing a structure of a conventional ring blower.
2 is a view showing a structure of a noise preventing structure ring blower according to an embodiment of the present invention.
3 is a view showing an installation state of a cooling air outlet according to an embodiment of the present invention.
4 is a view showing an installation state of a cooling air supply unit according to an embodiment of the present invention.
5 is a perspective view illustrating the structure of a noise isolation board according to an embodiment of the present invention.
6 is a cross-sectional view illustrating the structure of a noise barrier board according to an embodiment of the present invention.
7 is a cross-sectional view showing a structure of a muffler according to an embodiment of the present invention.

Hereinafter, a specific embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2, the noise preventive structure ring blower 100 according to the present embodiment includes a ring blower 110, a seal cover 120, a cooling air inlet 130, a cooling air supply 140, An outlet 150 and a cooling air outlet 160.

The ring blower 110 may be a general ring blower having a cooling fan 114 behind the motor 112. [ For example, a conventional ring blower as shown in Fig. 1 may also be used.

Next, the sealing cover 120 is a component that surrounds the ring blower 110 from the outside so as to be blocked from the outer space, as shown in FIG. Accordingly, the ring cover 110 is installed in the sealed inner space by the seal cover 120, and the noise generated during operation is prevented from flowing out.

In this embodiment, the sealing cover 120 is made of a stainless steel material, which is light, yet has sufficient strength and durability and is easy to process.

2, the cooling air inlet 130 is formed through the sealing cover at the rear of the cooling fan 114 of the sealing cover 120, and the external cooling air flows through the sealing And flows into the inside of the cover 120.

2, the cooling air supply unit 140 is connected to the cooling air inlet 130 and supplies cooling air to the cooling air inlet 130. In this state, To supply external cooling air. That is, the noise-isolating cooling air supply unit 140 supplies the cooling air to the inside of the sealing cover 120 so that the noise inside the sealing cover 120 is prevented from flowing out to the outside.

The cooling air supply unit 140 may include an air inlet 142, a second air passage 144, and a first noise isolation board 146. [ 2, the air inlet case 142 is coupled to the sealing cover 120, and the first air passage 141 is opened in the direction of the cooling air inlet 130 And is a closed box-shaped component in which a certain closed space is formed inside. The air inlet 142 functions as a buffer space for a predetermined time before the cooling air is introduced into the cooling air inlet 130.

4, the second air passage 144 is formed to penetrate through one side of the air inlet chamber 142 and is a passage through which cooling air flows into the air inlet chamber 142 from the outside . The second air passage 144 may be formed through the side wall opposite to the side wall of the air inlet chamber 142 where the first air passage 141 is formed, As shown in FIG.

2 and 4, the first noise isolation board 146 is formed by cutting off the second air passage 144. The first noise isolation board 146 includes a component to be. 5, the first noise isolation board 146 may include a shield plate 147 and a silencer 148. The first noise isolation board 146 may include a shield plate 147 and a silencer 148, as shown in FIG.

The blocking plate 147 is a plate-like component made of stainless steel. The first noise blocking board 146 blocks the second air passage 144 so that the blocking plate 147 is formed to have a slightly larger area than the second air passage 144 And completely blocks the second air passage while being coupled to the air inlet chamber 142.

As shown in FIG. 5, a plurality of mounting holes 145 are formed in the blocking plate 147 in the form of a matrix. As shown in FIG. 6, the mounting holes 145 are formed through the mounting holes 145 in a thickness direction so that the mounting holes 145 are formed with a female screw structure for mounting the silencer 148 An installation port 149 is provided.

4 and 5, the silencer 148 is installed in the plurality of installation holes 145 in a threaded manner, and is a component for passing air and blocking noise. The plurality of mufflers 148 are installed in the blocking plate 147 in order to pass a sufficient amount of cooling air while reliably blocking the noise.

As shown in FIG. 7, the silencer 148 may include a spiral member 148a and a silencer 148b. As shown in FIG. 7, the screw body 148a is a component in which an air passage hole 148c is formed at the center and a screw surface 148d is formed at the outer peripheral surface. And is screwed to the mounting hole 149 using the screw surface 148d.

As shown in FIG. 7, the noise separator 148b is disposed on the opposite side of the threaded surface 148d of the screw body 148a. The noise separator 148b is made of a porous material, . This noise shading unit 148b has a cylindrical structure in which only one side is opened.

As shown in Fig. 7, the muffler 148 is supplied with gas from the direction of the body 148a and flows out toward the muffler body 148b.

2 and 3, the cooling air outlet 150 is formed through the sealing cover 120 in a direction in which the cooling air that has completed the cooling operation is discharged from the sealing cover 120 , And the cooling air flows out to the outside. Accordingly, the cooling air outlet 150 has a sufficient size to allow the used cooling air to be discharged, and is installed on both side walls of the sealing cover 120, as shown in FIG. 2 for smooth cooling air discharge .

Next, the cooling air outlet 160 is installed to block the cooling air outlet 150 as shown in FIGS. 2 and 3, and is a component that allows the cooling air to flow out in a state in which noise leakage is blocked. Therefore, the cooling air used by the cooling air outlet 160 is sufficiently discharged, and the noise inside the sealing cover 120 can be kept shut off.

3, the cooling air outlet 160 may include a shield plate 162 and a silencer 164. Here, the shielding plate 162 and the silencer 164 of the cooling air outlet 160 have the same structure as those of the first noise isolation board 146, and therefore, a repetitive description thereof will be omitted.

100: Noise prevention structure ring blower according to one embodiment of the present invention
110: ring blower 120: sealing cover
130: cooling air inlet 140: cooling air supply
150: cooling air outlet 160: cooling air outlet

Claims (7)

A ring blower having a cooling fan behind the motor;
A sealing cover for covering the ring blower from the outside so as to be blocked from the outer space;
A cooling air inlet formed in the sealing cover behind the cooling fan through the sealing cover;
A noise isolation cooling air supply unit coupled to the cooling air inlet for supplying cooling air to the cooling air inlet and supplying external cooling air in a state in which noise leakage is blocked;
A cooling air outlet formed through the sealing cover in a direction in which the cooling air having undergone the cooling action out of the sealing cover is discharged;
And a cooling air outlet which is installed to block the cooling air outlet and through which the cooling air flows out in a state in which the noise is blocked,
The cooling air supply unit
An air inlet coupled to the sealing cover and having a first air passage opened in the direction of the cooling air inlet;
A second air passage formed through one side of the air inlet case;
And a first noise blocking board formed by cutting off the second air passage and introducing the cooling air in a state in which the noise leakage is blocked. delete 2. The apparatus of claim 1, wherein the first noise-
A shield plate made of stainless steel and having a plurality of mounting holes in a matrix form;
And a plurality of silencers installed in the plurality of installation holes in a threaded manner to pass air and block noise. The muffler according to claim 3,
A screw body having an air passage hole formed at the center thereof and a flat surface formed on an outer circumferential surface thereof;
And a silencer unit installed at one side of the body and made of a porous material. The sealing cover according to claim 1,
Wherein the ring-shaped structure is made of stainless steel. The air conditioner according to claim 1,
A shield plate made of stainless steel and having a plurality of mounting holes in a matrix form;
And a plurality of silencers installed in the plurality of installation holes in a threaded manner to pass air and block noise. The method according to claim 1,
And the cooling air outlet is installed on both side walls of the sealing cover.
KR1020160008143A 2016-01-22 2016-01-22 A ring blower having noise prevention structure KR101850942B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160008143A KR101850942B1 (en) 2016-01-22 2016-01-22 A ring blower having noise prevention structure

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Application Number Priority Date Filing Date Title
KR1020160008143A KR101850942B1 (en) 2016-01-22 2016-01-22 A ring blower having noise prevention structure

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KR101850942B1 true KR101850942B1 (en) 2018-04-23

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102539048B1 (en) 2022-10-07 2023-06-01 (주)동행기술 Low-Noise of Blower

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5088526B2 (en) * 2005-04-18 2012-12-05 ソニー株式会社 Jet generator and electronic device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5088526B2 (en) * 2005-04-18 2012-12-05 ソニー株式会社 Jet generator and electronic device

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