WO2021141224A1 - Appareil pour réduire le bruit de tuyau - Google Patents

Appareil pour réduire le bruit de tuyau Download PDF

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Publication number
WO2021141224A1
WO2021141224A1 PCT/KR2020/015290 KR2020015290W WO2021141224A1 WO 2021141224 A1 WO2021141224 A1 WO 2021141224A1 KR 2020015290 W KR2020015290 W KR 2020015290W WO 2021141224 A1 WO2021141224 A1 WO 2021141224A1
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WO
WIPO (PCT)
Prior art keywords
pipe
reduction
guide
extending
support
Prior art date
Application number
PCT/KR2020/015290
Other languages
English (en)
Korean (ko)
Inventor
성상진
김미성
Original Assignee
엘지전자 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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to DE112020006484.0T priority Critical patent/DE112020006484T5/de
Priority to CN202090001061.9U priority patent/CN218269341U/zh
Publication of WO2021141224A1 publication Critical patent/WO2021141224A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/40—Vibration or noise prevention at outdoor units

Definitions

  • the present invention relates to a pipe noise reduction device, and more particularly, to a device for reducing vibration and noise generated by a refrigerant flowing through a pipe.
  • An air conditioner is a device that transfers thermal energy between an indoor unit and an outdoor unit in order to make an air conditioning space comfortable.
  • a refrigerant is used as a medium for transferring thermal energy, and the refrigerant is compressed, condensed, expanded, and evaporated while circulating between the indoor and outdoor units to form a cycle.
  • a compressor is used as a configuration for pressurizing and compressing the refrigerant, and vibration and noise are induced when the compressor is driven. Therefore, in general, the compressor is installed in the outdoor unit.
  • the first conventional apparatus 10 is formed in an annular shape to reduce vibration and noise generated from the pipe.
  • the first conventional device 10 is formed in an annular shape and includes an inner circumferential surface 11 and an outer circumferential surface 15, and a damping portion 13 that connects the inner circumferential surface 11 and the outer circumferential surface 15 to form a predetermined thickness. ) is further included.
  • the first conventional device 10 is provided with an opening 17 having one side opened and coupled to the pipe.
  • the first conventional device 10 may not be installed adjacent to the bent portions 3a and 3b. This is because the damping portion 13 and the bent portions 3a and 3b may conflict with each other.
  • the suction pipe ( 3) It becomes impossible to sufficiently reduce the vibration and noise generated from it.
  • the degree to which the first conventional device 10 reduces vibration and noise generated from the pipe is proportional to the volume of the damping unit 13 .
  • the pipe noise reduction device (hereinafter, abbreviated as a second conventional device) is provided in an annular shape to surround the pipe.
  • the second conventional device includes a first damper to fix the pipe and the public pipe noise reduction device.
  • the first conventional device includes a second damper coupled in a direction away from the inner circumferential surface from the outer circumferential surface to dissipate the vibration transmitted through the first damper.
  • the second conventional device does not reduce the noise and vibration of the pipe in proportion to the volume of the second conventional device, but it should include a plurality of second dampers to reduce the vibration and noise generated from the pipe.
  • the shape is inevitably complicated and manufacturing becomes difficult.
  • the installation since it is provided in an annular shape and installed to surround the pipe, in the case of the pipe including the above-described bent portions 3a and 3b, the installation may be limited.
  • An embodiment of the present invention aims to provide a pipe noise reduction device that efficiently reduces high-frequency noise of 1KHZ or more generated from the pipe.
  • An embodiment of the present invention aims to provide a pipe noise reduction device that can be installed regardless of the shape of the pipe.
  • An embodiment of the present invention aims to provide a pipe noise reduction apparatus for concentrating and dissipating vibration and noise generated from a pipe.
  • An embodiment of the present invention aims to provide a pipe noise reduction device for dissipating vibration and noise generated from the pipe by collision.
  • An embodiment of the present invention may use a dynamic absorber principle and an impact absorber principle to achieve the above object.
  • An embodiment of the present invention may provide a pipe noise reduction device including an ABH shape in order to achieve the above object. Vibration and noise generated from the pipe by the ABH shape may be concentrated to the end of the pipe noise reduction device.
  • a support unit coupled to a pipe to achieve the above object, a guide unit extending along the longitudinal direction of the pipe from the support unit and spaced apart from the pipe to transmit vibration of the pipe, in the guide unit A reduction part extending along the longitudinal direction of the pipe, and a dissipation member attached to the reduction part to cancel vibration of the pipe, wherein the reduction part is characterized in that the thickness decreases along the extension direction of the reduction part
  • a pipe noise reduction device may be provided.
  • the reduction part may include a first surface made of a flat surface, a second surface spaced apart from the first surface to form the first surface and the thickness, and a second surface made of a curved surface.
  • One of the first surface or the second surface may be provided at a position facing the pipe.
  • the dissipation member may be provided to be spaced apart from the pipe coupled to the first surface.
  • the reduced portion may have a greater width along an extension direction of the reduced portion.
  • the guide part includes a first guide part extending in a first direction from the support part and a second guide part extending in a second direction opposite to the first direction from the support part, and the first guide part and the second guide part
  • the two guide portions may be spaced apart from each other to form a space in which a coupling member for fixing the support portion to the pipe is coupled to the support portion.
  • An embodiment of the present invention provides a support coupled to a pipe to achieve the above object, a guide part extending in a direction perpendicular to the longitudinal direction of the pipe from the support part to transmit the vibration of the pipe, and the pipe in the guide part a reduction part extending in a direction perpendicular to the longitudinal direction of the reduction part, a dissipation member attached to the reduction part to cancel vibration of the pipe; the reduction part is characterized in that the thickness decreases along the extension direction of the reduction part It is possible to provide a pipe noise reduction device.
  • the support part may include a coupling part recessed from the support part toward the pipe so that the coupling member for fixing the support part to the pipe may be coupled to the support part.
  • a degree to which the thickness of the reduction part is reduced may decrease along an extension direction of the reduction part.
  • the dissipation member may be made of rubber.
  • the guide part includes a third guide part extending in a third direction from the support part, and a fourth guide part extending in a fourth direction opposite to the third direction from the support part, and the reduction part is the third guide part.
  • the reduction part is the third guide part.
  • the dissipation member may include a case attached to the reduction part and forming an accommodation space, and a plurality of collision members located in the accommodation space to dissipate vibration of the pipe.
  • the case includes a first case attached to the third reducing part and a second case attached to the fourth reducing part, and the dissipating member connects the first case and the second case and is coupled to the pipe It may further include a connecting portion that becomes.
  • connection part may be located between the support part and the pipe.
  • vibration and noise generated from the pipe may be concentrated and dissipated.
  • vibration and noise generated from the pipe may be dissipated by the impact.
  • FIG. 1 is a view showing a first prior art device
  • FIG. 3 is a perspective view according to an embodiment of the present invention.
  • Figure 4 is a view showing a state that the pipe noise reduction device according to an embodiment of the present invention is attached to the pipe;
  • FIG. 5 is a front view of a pipe noise reduction device according to an embodiment of the present invention.
  • FIG. 6 is a perspective view of a pipe noise reduction device according to an embodiment of the present invention.
  • FIG. 7 is a perspective view showing a dissipation member according to an embodiment of the present invention.
  • first and/or second may be used to describe various components, but the components are not limited to the above terms.
  • the above terms are used only for the purpose of distinguishing one component from other components, for example, within the scope of not departing from the scope of rights according to the concept of the present invention, the first component may be named as the second component, Similarly, the second component may also be referred to as the first component.
  • the ABH shape (S) can concentrate the vibration and noise generated from the pipe.
  • the ABH shape (S) is defined through FIG. 2, and FIG. 2 shows a state in which the medium (M) is divided into a plurality of regions to explain the ABH shape (S).
  • the medium M includes a first region 20 , a second region 30 , and a third region 40 .
  • the first region 20 to the third region 40 may be in the same order as the waves moving in the medium M proceed.
  • the speed of the wave may be maintained in the first region 20 and may decrease in speed in the second region 30 and the third region 40 . This is because the speed of the wave is proportional to the square root of the thickness of the medium.
  • the second region 30 and the third region 40 have an acoustic black hole effect.
  • the shape of the power function according to the acoustic black hole effect is defined as the ABH shape (S).
  • the ABH shape (S) includes a shape in which the thickness of the medium is reduced according to the travel direction of the wave. In addition, it is preferable that the extent to which the thickness of the medium is reduced according to the direction of propagation of the wave decreases.
  • the thickness of the medium including the ABH shape (S) is reduced according to the traveling direction of the wave, the width decreasing according to the traveling direction of the wave may be reduced.
  • the thickness of the medium M reduced in the second region 30 is the third region ( 40) may be greater than the thickness of the reduced medium (M).
  • the second region 30 and the third region 40 may include one surface formed of a flat surface and the other surface formed of a curved surface, and the ABH shape S may be formed on the curved surface. That is, when the second region 30 and the third region 40 are cross-sectioned in a direction parallel to the traveling direction of the wave, the ABH shape S is a curved surface of the second region 30 and the third region 40 . can be formed in
  • various embodiments of the present invention further include the fourth region 50 .
  • the fourth region 50 may be coupled to the second region 30 where the movement of the wave is concentrated to dissipate the concentrated wave.
  • the wave moving in the first region 20 may not only maintain the speed of the wave due to the constant thickness of the first region 20 , but also guide the direction in which the wave is transmitted to the second region 30 .
  • the waves gathered by the fourth region 50 may be dissipated.
  • FIG. 3 is a perspective view of a pipe noise reduction device according to an embodiment of the present invention
  • FIG. 4 is a view showing a state in which the pipe noise reduction device according to an embodiment of the present invention is combined with a pipe.
  • a reduction unit 300 may be included.
  • the support part 100 includes a contact surface 110 in contact with the pipe (p) and a separation surface 120 spaced apart from the contact surface 110 in a direction away from the pipe (p).
  • the contact surface 110 may have a shape corresponding to the pipe p and be seated on the pipe p.
  • the separation surface 120 may be spaced apart from the contact surface 120 by a predetermined distance to form a thickness of the support part 100 together with the contact surface 110 .
  • the dissipation member 400 may be provided to be spaced apart from the pipe p by forming the thickness of the support part 100 .
  • the guide part 200 includes a first guide part 210 and a second guide part 220 extending along the longitudinal direction of the pipe p from the support part 100 .
  • first guide part 210 and the second guide part 220 extend from the support part 100 in opposite directions. Assuming that the first guide portion 210 extends in the first direction D1 along the longitudinal direction of the pipe p, the second guide portion 220 may extend in a second direction opposite to the first direction D1 ( D2) may extend along the longitudinal direction of the pipe (p).
  • first direction D1 and the second direction D2 are positioned on a straight line, but may refer to directions away from each other.
  • the guide part 200 is preferably extended along the longitudinal direction of the pipe (p) and spaced apart from the pipe (p). Accordingly, the guide part 200 may extend along the longitudinal direction of the pipe (p) from the separation surface (120).
  • the guide part 200 is preferably extended along the longitudinal direction of the pipe (p) while maintaining a predetermined thickness. That is, it is preferable that the guide part 200 extends along the first direction D1 and the second direction D2 but the thickness does not change.
  • the guide unit 200 needs to receive vibrations in various directions generated in the pipe p from the support unit 100 and transmit them to the reduction unit 300 . This is because, if the thickness is changed in the extension direction of the pipe (p) in the guide part (200), the vibration generated from the pipe (p) cannot be efficiently transmitted to the reduction part (300).
  • the reducing part 300 includes a first reducing part 310 and a second reducing part 320 extending along the longitudinal direction of the pipe p from the guide part 200 .
  • the first reducing portion 310 may extend from the first guide portion 210 in the longitudinal direction of the pipe (p). Also, the first reduction part 310 may extend from the first guide part 210 in the first direction D1 .
  • the second reducing part 320 may extend from the second guide part 220 in the second direction D2 .
  • the thickness t of the reduction part 300 is gradually reduced along the extension direction. Accordingly, the thickness t of the first reducing part 310 may decrease as it extends along the first direction D1 from the first guide part 210 . Also, the thickness t of the second reducing part 320 may decrease as it extends along the second direction D2 from the second guide part 220 .
  • the first reduction unit 310 may include a first surface 311 formed of a flat surface and a second surface 313 formed of a curved surface.
  • the first surface 311 and the second surface 313 may be spaced apart from each other to form a thickness t. That is, the thickness t of the reduction part 300 may be defined as a distance between the first surface 311 and the second surface 313 .
  • first surface 321 formed of a flat surface and the second surface 323 formed of a curved surface may also be formed in the second reduction unit 320 .
  • the ABH shape S may be formed on the second surfaces 313 and 323 . Accordingly, the thickness t of the second surfaces 313 and 323 is reduced along the extending direction of the reducing part 300 as well as the extent to which the thickness t is decreased along the extending direction of the reducing part 300 . may gradually decrease.
  • the cross section in the extension direction of the reduction part 300 may include an ABH shape (S).
  • the vibration generated from the pipe p is transmitted to the support part 100 , and the vibration transmitted to the support part 100 may be guided to the reduction part 300 by the guide part 200 .
  • the vibration of the pipe (p) moving the reduction part 300 by the ABH shape (S) formed in the reduction part 300 may be slowed down. Therefore, the vibration generated from the pipe (p) may be concentrated in the reduction unit (300).
  • the dissipating member 400 may be coupled to the reducing unit 300 .
  • the support portion 100 forms a thickness including the contact surface 110 and the separation surface 120 , the dissipation member 400 is spaced apart from the pipe p and coupled to the reduction portion 300 . can be
  • the dissipation member 400 includes a first dissipation member 410 , and the first dissipation member 410 may be attached to the reduction unit 300 to dissipate the concentrated vibration.
  • the first dissipating member 410 may have bubbles or tubular holes formed on the surface and inside like a porous sound absorbing material to convert sound energy into thermal energy and absorb it.
  • the first dissipating member 410 may dissipate the concentrated vibration by vibrating the plate like a plate-shaped sound absorbing material.
  • the first dissipation member 410 may be formed of rubber.
  • the first dissipating member 410 may be coupled to at least one of the first surfaces 311 and 321 and the second surfaces 321 and 323 , but the first dissipating member 410 may be coupled to the first surfaces 311 and 321 . It is preferable to be formed in
  • the ABH shape S is formed on the second surfaces 321 and 323 , and the ABH shape S concentrates the vibration transmitted from the pipe p. Accordingly, when the first dissipation member 410 is coupled to the second surfaces 321 and 323 , the vibration generated in the pipe p may be less concentrated.
  • first guide part 210 and the second guide part 220 may extend apart from each other.
  • the first guide part 210 extends along the first direction D1 from one side of the support part 100
  • the second guide part 220 extends along the second direction D2 from the other side of the support part 100 .
  • a coupling part C is formed in which the coupling member for coupling the support part 100 to the pipe p is coupled to the support part 100 .
  • the coupling portion C may be formed by the first guide portion 210 , the second guide portion 220 , and the separation surface 120 .
  • the coupling member may have a string shape formed of nylon. Accordingly, the separation surface 120 may include a shape corresponding to the pipe p in the same way as the contact surface 110 .
  • a plurality of pipe (p) noise reduction apparatus may be coupled to the pipe (p).
  • the present invention may be coupled to the pipe (p) regardless of the shape of the pipe (p) by the guide part 200 extending along the longitudinal direction of the pipe (p). Even when the pipe (p) is formed by bending, as long as the support part 100 is coupled to the pipe (p), the guide part 200 extends from the support part 100, and is spaced apart from the pipe (p), so the pipe (p) ) can be less constrained by the shape of the pipe (p)
  • FIG. 5 (a) is a view showing a state in which the positions of the first surface 311 and the second surface 313 are changed according to an embodiment of the present invention
  • FIG. 5 (b) is an embodiment of the present invention. It is a view showing a state in which the width w of the first reduction unit 310 is widened according to FIG.
  • the first surface 311 may extend along the extension direction of the pipe p from one side of the guide part 200 to face the pipe p. Accordingly, the first dissipating member 410 coupled to the first surface 311 may be coupled to the first surface 311 at a position opposite to the pipe p.
  • the second surface 313 may extend along the extension direction of the pipe (p) from the other side of the guide part 200 to face the pipe (p).
  • the first reducing part 310 may be formed to have a wider width w along the extending direction of the first reducing part 310 . Accordingly, the areas of the first surface 311 and the second surface 321 may increase as the width w of the reduction part 300 becomes wider along the extending direction of the reduction part 300 .
  • the thickness t of the first reducing part 310 may mean the distance between the first surface 311 and the second surface 313 , and the width of the first reducing part 310 is the first surface It may relate to the area of 311 and the second surface 313 . Accordingly, the thickness t of the first reducing part 310 may be independent of the areas of the first surface 311 and the second surface 313 .
  • the area of the first dissipating member 410 coupled to the first surface 311 may be increased.
  • the volume of the first dissipating member 410 coupled to the first surface 311 may be increased.
  • the first reducing part 310 has a wider width along the extending direction of the first reducing part 310 . When formed, the vibration generated from the pipe p can be more efficiently dissipated.
  • the width w of the second reducing part 320 may be wider along the second direction D2 .
  • FIG. 6 is a perspective view of a pipe (p) noise reduction device according to an embodiment of the present invention.
  • the guide part 200 of the pipe (p) noise reduction device extends from the support part 100 to the third direction D3. It includes a guide part 230 and a fourth guide part 240 extending in a fourth direction D4.
  • the third direction D3 and the fourth direction D4 may be defined as directions perpendicular to the longitudinal direction of the pipe p. More specifically, the third guide part 230 and the fourth guide part 240 extending along the third and fourth directions D3 and D4, respectively, may form the same plane as the separation surface 120 . have. That is, one surface of the third guide part 230 and one surface of the fourth guide part 240 respectively extending along the third and fourth directions D3 and D4 from the separation surface 120 form the same plane. can do.
  • the reduction portion 300 includes a third reduction portion 330 extending from the third guide portion 230 in the third direction D3 and a fourth portion extending in the fourth direction D4 from the fourth guide portion 240 .
  • a reduction unit 340 may be included.
  • the third reducing part 330 may include a first surface 331 made of a flat surface and a second surface 333 made of a curved surface, and the fourth reducing part 340 is similarly formed with the first surface 341 and A second surface 343 may be included.
  • an ABH shape S may be formed on the second surfaces 333 and 343 .
  • the first dissipating member 410 may be attached to the first surface 331 of the third reducing unit 330 to dissipate the vibrations concentrated in the third reducing unit 330 .
  • the first dissipating member 410 may be attached to the first surface 341 of the fourth reducing unit 340 to dissipate the vibrations concentrated in the fourth reducing unit 340 .
  • the support part 100 may extend in the first direction D1 and the second direction D2 to provide a space in which the coupling part C is formed.
  • the contact surface 110 may also extend in the first direction D1 and the second direction D2 to increase an area coupled to the pipe p.
  • the separation surface 120 may also extend in the first direction D1 and the second direction D2 to correspond to the contact surface 110 to form a thickness with the contact surface 110 .
  • the support part 100 may include a coupling part C recessed toward the contact surface 110 extending in the first direction D1 from the separation surface 120 extending in the first direction D1.
  • the support part 100 may include a coupling part C recessed along the contact surface 110 extending in the second direction D2 from the separation surface 120 extending in the second direction D2. .
  • the support part 100 can be coupled to the pipe (p) through a plurality of coupling members, the degree of coupling between the support part (100) and the pipe (p) can be more robust. .
  • the contact area between the support part 100 and the pipe (p) is widened, and ultimately, the volume of the medium in which the vibration generated in the pipe (p) flows increases, so the support part 100 is the pipe (p). ) can be transmitted better.
  • the noise generated from the pipe (p) is a high frequency of 1KHZ to 4KHZ, to strengthen the coupling between the pipe (p) and the support part 100 and to widen the contact area between the pipe (p) and the support part 100, This is because it may act as an important factor in the degree to which the vibration is concentrated in the reduction unit 300 .
  • FIG. 7 is a view showing a second dissipating member according to an embodiment of the present invention.
  • the second dissipating member 420 may dissipate the concentrated vibration by absorbing an impact.
  • the second dissipation member 420 may include a case 421 and a collision member 423 .
  • the case 421 may be hollow to form an accommodation space. Accordingly, the collision member 423 may be located in the receiving space in the case 421 to dissipate the vibration.
  • a plurality of collision members 423 are positioned in the case 421 , and may be arranged to have a predetermined space inside the case 421 . Accordingly, when vibration is transmitted to the case 421 , the plurality of collision members 423 inside the case 421 may receive the vibration and collide with each other to dissipate the transmitted vibration.
  • the collision member 423 may be a bead having a spherical shape, and may be formed of iron or plastic. However, it is not limited thereto, and any material and shape that cancels vibration energy by mutual collision will suffice.
  • the second dissipating member 420 has a predetermined volume and mass, it is preferable to be symmetrically coupled to the pipe noise reduction device according to an embodiment of the present invention.
  • the case 421 may include a first case 421a and a second case 421b.
  • the first case 421a may be coupled to the third guide part 230 and the third reduction part 330 . More specifically, the first case 421a may be coupled to the first surface 331 forming the plane of the third reducing part 330 in order to be coupled more firmly.
  • the second case 421b may be coupled to the first surface 341 of the fourth guide part 240 and the fourth reducing part 340 .
  • the case 421 may be formed with a flat surface on one surface of the case 421 to be firmly coupled to the guide unit 200 and the reduction unit 300 .
  • first case 421a and the second case 421b are connected. This is because when the vibration is transmitted to the case 421 , the vibration is transmitted between the first case 421a and the second case 421b and may be dissipated by the collision member 423 .
  • the second dissipation member 420 may include a connection part 425 connecting the first case 421a and the second case 421b.
  • connection part 425 one surface of the first case 421a contacting the third guide part 230 and the third reducing part 330 and the second case 421b are the fourth guide part 240 and the fourth reducing part 330.
  • One surface in contact with the part 340 may be connected.
  • connection part 425 may extend in the first direction D1 and the second direction D2 to correspond to the shape of the contact surface 110 .
  • the second dissipation member 420 may be coupled to the pipe p, and the support part 100 may be coupled to the second dissipation member 420 . That is, the second dissipation member 420 may be positioned between the support part 100 and the pipe p to dissipate the vibration transmitted from the pipe p.
  • vibration having a specific frequency may be more efficiently dissipated. This is because, in the case of an impact absorber, the distance between the collision members 423 is related to the frequency of the dissipated vibration.
  • the second dissipation member 420 is in contact not only with the reduction part 300 , but also with the support part 100 and the guide part 200 to form a larger contact area. Therefore, it is possible to receive and dissipate the vibration in a larger contact area, so that the vibration of the pipe p can be more efficiently dissipated.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pipe Accessories (AREA)

Abstract

La présente invention concerne un appareil pour réduire le bruit de tuyau, un élément de dissipation étant fixé à un élément de réduction qui devient plus fin dans la direction d'extension pour ainsi concentrer et dissiper les vibrations générées par un tuyau.
PCT/KR2020/015290 2020-01-10 2020-11-04 Appareil pour réduire le bruit de tuyau WO2021141224A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112020006484.0T DE112020006484T5 (de) 2020-01-10 2020-11-04 Vorrichtung zum verringern eines rohrgeräuschs
CN202090001061.9U CN218269341U (zh) 2020-01-10 2020-11-04 配管降噪装置

Applications Claiming Priority (2)

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KR10-2020-0003749 2020-01-10
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