WHY INGREEN?

InGreen Technology Inc. is dedicated to developing innovative products to control noise and vibration. We possess the Successful experience of supplying with our products to the well known clients, such as GE, SIEMENS, MDS, ALSTOM, Mitsubishi Hitachi, MTU, CENCO, etc.

CONTACT INFO
  • Address: Unit F, 356 Woodroffe Ave.,
    Ottawa, ON K2B 5B6
  • Toll Free: 1-888-507-8973
  • Email: sales@ingreen.ca
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Tube Silencers

Tube silencer is developed on the basis of our patent product (Patent No. ZL 2001 2 0554664.4) and made of plastic punching plate arranged in array. Acoustic foam is filled in the space amid silencer pipes of which the head is covered by ABS panel and being held on tightly by Aluminum alloy strip. 

Internal steel framework is used as weight sustaining structure. Steel casing is used as protection and sound proofing. The silencer is free from corrosion when stainless steel is used as the material of tube silencer casing and structure. All parts except for steel framework and casing are installed through assembly. If the working condition is away from direct sunlight and rainfall, the shelf life can be extended up to 30 years. 

The tube silencer is quite suitable for applications at offshore or onshore regions or those areas with salt/acid/damp corrosion.

 

Name Available Value(s)

CLLG08/CLLG12 tube silencer is designed into two models in order to deal with specific components within the frequency spectrum: CLLG08 with the silencing length of 800mm could achieve an insertion loss of 30-40 dB (A) in the middle and high components of noise frequency spectrum. Alternatively, CLL12 with the silencing length of 1200mm is able to achieve a noise reduction of 40-50 dB (A) within the same frequency spectrum interval. The exact noise reduction shall be calculated specifically in certain case. We are inspired by twisted pair curves to devote our effort in optimizing air dynamic design. As a result, the lower pressure drop is achieved with the flow ratio of 42%。

 

               Frequency (Hz)

Model

63

125

250

500

1000

2000

4000

8000

CLLG08

21.8

22.4

30.7

35.9

47.0

61.8

64.0

66.6

CLLG12

26.3

33.4

32.7

42.3

61.4

63.9

64.2

69.2

 

 

    

CLLG tube silencer works at the temperature range from -40℃ to 70℃ and could be applied to the acoustic service of generator room and HVAC engineering as a prior choice. At the same time, the procurement of tube silencer would be the best for facilities with strict limit on ventilation pressure drop.

  • Gas Turbine
  • Blower, Axial blower
  • Boiler
  • Aviation Testing bed
  • Ship power system
  • Air compressor
  • Air conditioner
  • Backup power system
  • Mineral ventilation
  • High temperature equipment
  • Centre air conditioner of Hotel, building
  • Subway ventilation
  • Kitchen ventilation

There are different sound spectrum among different equipment, different power, or different manufacturer brand.

The following data are the reference based on the experience. The accurate test data will be tested in the real life of operation, which is used to reduce the cost and select the most suitable silencer.

          Frequency (Hz)

 

63

125

250

500

1000

2000

4000

8000

Noise Level (dB)

Diesel engine

104

93

95

101

102

99

96

92

98

Axial blower

109

96

102

93

111

103

97

90

82

High-pressure blower

113

108

108

100

108

107

104

96

89

Turbine blower

119

106

103

108

115

118

115

107

100

Mineral Vent blower

113

98

103

109

112

111

97

90

82

The noise value measured from equipment according to the octave band minus the sound attenuation from silencer, and get the noise reduction value. The noise reduction is calculated based on A-weighted sound level.    

  CLLG08 Silencer:

          Frequency (Hz)

 

63

125

250

500

1000

2000

4000

8000

Noise Level (dB)

CLLG08 Noise reduction

 

21.8

22.4

30.7

35.9

47

61.8

64

66.6

Diesel engine

66.4

71.2

72.6

70.3

66.1

52

34.2

28

31.4

Axial blower

72.8

74.2

79.6

 62.3

75.1

56

35.2

26

15.4

High-pressure blower

73.2

86.2

85.6

69.3

72.1

60

42.2

32

22.4

Turbine blower

78.2

84.2

80.6

77.3

79.1

71

53.2

43

33.4

Mineral Vent blower

75.6

76.2

80.6

78.3

76.1

64

35.2

26

15.4

Noise reduction dBA:37.6、36.2、39.8、40.8、37.4

CLLG12 Silcener:

          Frequency (Hz)

 

63

125

250

500

1000

2000

4000

8000

Noise Level (dB)

CLLG12 Noise reduction

 

26.3

33.4

32.7

42.3

61.4

63.9

64.2

69.2

Diesel engine

62.0

66.7

61.6

68.3

59.7

37.6

32.1

27.8

28.8

Axial blower

66.1

69.7

68.6

60.3

68.7

41.6

33.1

25.8

12.8

High-pressure blower

65.9

81.7

74.6

67.3

65.7

45.6

40.1

31.8

19.8

Turbine blower

72.0

79.7

69.6

75.3

72.7

56.6

51.1

42.8

30.8

Mineral Vent blower

70.7

71.7

69.6

76.3

69.7

49.6

33.1

25.8

12.8

Noise reduction dBA:42、42.8、47.1、47、42.3

First, it is suitable to use at the temperature from -40 ℃ ~ 70 ℃.  If the temperature is over 70℃, it will damage the silencer. According to the noise spectrum, noise requirements, basic acoustic estimation, and A sound level, to determine the selection of CLLG08 or CLLG12 series silencer. Normally, based on the flow rate, in the air intake or inlet system, the reverse air flow will reduce the noise 5-10 dBA. If CLLG08 / CLLG12 silencers are used for medium and high frequency noise from the equipment, the noise reduction will be calculated as 40/50 dBA; if they are used for medium and low frequency noise, the noise reduction will be calculated as 30/40 dBA. In the air outlet or exhaust system, noise will reduce 5-10 dBA with the same as air flow direction. When they are used for medium and high frequency noise, the noise reduction will be calculated as 30/40dBA; if they are used for low frequency noise, the noise reduction will be calculated as 20/30 dBA. Above estimation will secure the calculation, and make sure the final engineering conduction to achieve the requirement. For the large noise control required projects, in order to save the project cost, calculation should follow the octave band accurately to optimize and reduce the engineering work.

Second, the model selection, it is based on the nominal flow and the maximum flow resistant (or pressures drop).  From the model list, make selection according to the flow resistant, and then select silencer model based on the flow rate. If the flow resistant value is between the two range, select the silencer model based on the flow rate from two columns. Also, it can be estimated based on the linearly proportional to the flow rate. The flow rate should not exceed the value in the table.

Third, if the silencer is installed outside, should weather or environment conditions, to add louver and filtration system for the intake or inlet system.

Sku List

Sku Name Width (mm) Height (mm) Lenght (mm) Weight (kg) Flange Width (mm) Circulation Area (m²) Flow m3/s (Flow Resistance Pa)
CLLG08-1/1 CLLG08-1/1 936 636 840 152 50 0.20 1.46(40), 2.18(90), 2.91(160), 3.64(250), 4.37(360), 5.09(500)
CLLG08-2/1 CLLG08-2/1 1792 636 840 269 50 0.39 2.91(40), 4.37(90), 5.82(160), 7.28(250), 8.73(360), 10.19(500)
CLLG08-1/2 CLLG08-1/2 936 1192 840 263 50 0.39 2.91(40), 4.37(90), 5.82(160), 7.28(250), 8.73(360), 10.19(500)
CLLG08-3/1 CLLG08-3/1 2648 636 840 418 50 0.59 4.37(40), 6.55(90), 8.73(160), 10.91(250), 13.1(360), 15.28(500)
CLLG08-1/3 CLLG08-1/3 936 1748 840 347 50 0.59 4.37(40), 6.55(90), 8.73(160), 10.91(250), 13.1(360), 15.28(500)
CLLG08-4/1 CLLG08-4/1 3504 636 840 599 50 0.79 0.58(40), 8.73(90), 11.64(160), 14.55(250), 17.46(360), 20.37(500)
CLLG08-2/2 CLLG08-2/2 1792 1192 840 376 50 0.79 5.82(40), 8.73(90), 11.64(160), 14.55(250), 17.46(360), 20.37(500)
CLLG08-1/4 CLLG08-1/4 936 2304 840 487 50 0.79 5.82(40), 8.73(90), 11.64(160), 14.55(250), 17.46(360), 20.37(500)
CLLG08-5/1 CLLG08-5/1 4440 716 840 1046 80 0.99 7.28(40), 10.91(90), 14.55(160), 18.19(250), 21.83(360), 25.47(500)
CLLG08-1/5 CLLG08-1/5 1016 2940 840 714 80 0.99 7.28(40), 10.91(90), 14.55(160), 18.19(250), 21.83(360), 25.47(500)
CLLG08-6/1 CLLG08-6/1 5296 716 840 1324 80 1.18 8.73(40), 13.1(90), 17.46(160), 21.83(250), 26.2(360), 30.56(500)
CLLG08-3/2 CLLG08-3/2 2728 1272 840 701 80 1.18 8.73(40), 13.1(90), 17.46(160), 21.83(250), 26.2(360), 30.56(500)
CLLG08-2/3 CLLG08-2/3 1872 1828 840 770 80 1.18 8.73(40), 13.1(90), 17.46(160), 21.83(250), 26.2(360), 30.56(500)
CLLG08-1/6 CLLG08-1/6 1016 3496 840 933 80 1.18 8.73(40), 13.1(90), 17.46(160), 21.83(250), 26.2(360), 30.56(500)
CLLG08-7/1 CLLG08-7/1 6152 716 840 1402 80 1.38 10.19(40), 15.28(90), 20.37(160), 25.47(250), 30.56(360), 35.65(500)
CLLG08-1/7 CLLG08-1/7 1016 4052 840 1203 80 1.38 10.19(40), 15.28(90), 20.37(160), 25.47(250), 30.56(360), 35.65(500)
CLLG08-8/1 CLLG08-8/1 7008 716 840 1882 80 1.58 11.64(40), 17.46(90), 23.28(160), 29.11(250), 34.93(360), 40.75(500)
CLLG08-4/2 CLLG08-4/2 3584 1272 840 897 80 1.58 11.64(40), 17.46(90), 23.28(160), 29.11(250), 34.93(360), 40.75(500)
CLLG08-2/4 CLLG08-2/4 1872 2384 840 889 80 1.58 11.64(40), 17.46(90), 23.28(160), 29.11(250), 34.93(360), 40.75(500)
CLLG08-1/8 CLLG08-1/8 1016 4608 840 1391 80 1.58 11.64(40), 17.46(90), 23.28(160), 29.11(250), 34.93(360), 40.75(500)
CLLG08-9/1 CLLG08-9/1 7864 716 840 2212 80 1.77 13.1(40), 19.65(90), 26.2(160), 32.74(250), 39.29(360), 45.84(500)
CLLG08-3/3 CLLG08-3/3 2728 1828 840 915 80 1.77 13.1(40), 19.65(90), 26.2(160), 32.74(250), 39.29(360), 45.84(500)
CLLG08-1/9 CLLG08-1/9 1016 5164 840 1601 80 1.77 13.1(40), 19.65(90), 26.2(160), 32.74(250), 39.29(360), 45.84(500)
CLLG08-10/1 CLLG08-10/1 8720 716 840 2657 80 1.97 14.55(40), 21.83(90), 29.11(160), 36.38(250), 43.66(360), 50.94(500)
CLLG08-5/2 CLLG08-5/2 4440 1272 840 1164 80 1.97 14.55(40), 21.83(90), 29.11(160), 36.38(250), 43.66(360), 50.94(500)
CLLG08-2/5 CLLG08-2/5 1872 2940 840 1028 80 1.97 14.55(40), 21.83(90), 29.11(160), 36.38(250), 43.66(360), 50.94(500)
CLLG08-1/0 CLLG08-1/0 1016 5720 840 1904 80 1.97 14.55(40), 21.83(90), 29.11(160), 36.38(250), 43.66(360), 50.94(500)
CLLG08-6/2 CLLG08-6/2 5296 1272 840 1392 80 2.37 17.46(40), 26.2(90), 34.93(160), 43.66(250), 52.39(360), 61.12(500)
CLLG08-4/3 CLLG08-4/3 3584 1828 840 1092 80 2.37 17.46(40), 26.2(90), 34.93(160), 43.66(250), 52.39(360), 61.12(500)

Other Products

Call Ingreen today at 1-888-507-8973 or Email to sales@ingreen.ca for more information.