HG/T 21616-1997 Standard series of silencers for common equipment in chemical plants
Some standard content:
Industry Standard of the People's Republic of China
HG/T21616-97
Silencers for Common Equipment in Chemical Plants
Standard Series
1997-09 14, Issued
1998-01-01
Ministry of Chemical Industry of the People's Republic of China
Ministry of Chemical Industry Document
Hua Jian Fa (1997) No. 598
Notice on Issuing Four Industry Standards, including "Standard Series for Silencer for Common Equipment in Chemical Plants" To all provincial, autonomous region, municipality directly under the Central Government, and independently planned cities, and all relevant units:
Four standards, including "Standard Series for Silencer for Common Equipment in Chemical Plants", organized and compiled by the relevant design and technology center of the Ministry of Chemical Industry, have been approved as recommended industry standards after review and will be implemented from January 1, 1998. For the standard name, number, organizing unit, and editor-in-chief unit, please see the attached table.
The four standards are managed by their respective organizations and published and distributed by the Engineering Construction Standards Editorial Center of the Ministry of Chemical Industry. Ministry of Chemical Industry
September 14, 1997
Standard Name
Commonly Used in Chemical Plants
Standard Number
Equipment Muffler HG/T21616-97
Standard Series
Chemical Mechanization
Transportation Process Design
Construction Drawing Content HG/T20560-
Content and Depth Gauge
Modified Polypropylene
Box and Plate Frame
Wuhan Filter Press Series
Chemical Steam Condensation
HG/T21615-
Organizing Unit Chief Editor
Ministry of Chemical Industry Environmental Protection
Jilin Chemical
Environmental Protection Design Technology China
Industrial Company
Design Institute
Ministry of Chemical Industry Powder Ministry of Chemical Industry Powder
Transport Equipment Design Technology Center Station
Shanghai Chemical Industry
Design Institute
Ministry of Chemical Industry Heat Jilin Chemical
Replace CD
Water System Design HG/T20591-97 Industrial Company Design Technical Regulations
Technical Center Station Design Institute
100A1687
Industry Standard of the People's Republic of China
Standard Series of Muffler for Common Equipment in Chemical Industry HG/T 21616-- 97
Editor-in-chief
Jilin Chemical Industry Company Design Institute
Environmental Protection Design Technology Center of the Ministry of Chemical Industry
Approval department: Ministry of Chemical Industry
Implementation date: January 1, 998
Engineering Construction Standard Editing Center of the Ministry of Chemical Industry
This standard series was proposed by the Environmental Protection Design Technology Center of the Ministry of Chemical Industry and jointly compiled by the Jilin Chemical Company Design Institute and the Environmental Protection Design Technology Center of the Ministry of Chemical Industry. This standard is compiled to guide the noise generated by equipment in the production process of chemical enterprises in the process of selecting silencers for noise prevention and control.
Currently, there are many manufacturers producing silencers with different models. During the preparation of this standard series, we conducted a survey on the larger silencer manufacturers in China, collected and summarized their performance, characteristics, models, etc. On this basis, we unified the models and listed a comparison table of old and new models at the end of the standard to facilitate selection. Due to the wide variety of silencers currently available, this standard series only makes serialized regulations for commonly used fan silencers, air compressor silencers and exhaust vent silencers, and other types of silencers are not included.
The unit proposing this standard: Environmental Protection Design Technology Center of Ministry of Chemical Industry The unit compiling this standard: Jilin Chemical Industry Company Design Institute Environmental Protection Design Technology Center of Ministry of Chemical Industry The unit responsible for this standard: Environmental Protection Design Technology Center of Ministry of Chemical Industry The main drafters of this standard: Li Guangzhi Sun Xiaoping Zhang Yongding Liu Fangr
General provisions
1.1 Scope of application
1.2 Classification
1.3 Characteristics of five major types of silencers
2 Series parameters and marking methods
2.1 Parameters and marking methods of fan silencer series2.2 Parameters and marking methods of air compressor silencer series2.3 Parameters and marking methods of exhaust vent silencer series3 Commonly used silencer standard series·
3.1 Standard series of fan silencers
3.1.1 Ventilation and air conditioning silencer series
3.1.2 High-pressure centrifugal ventilation silencer series·3.1.3 Roots blower silencer series
Boiler blower silencer series·
Axis 3.2 Muffler series for air compressors
3.2.1 HK-ZK-1 type muffler series
3.2.2 HK-ZK-2 type muffler series
3.2.3 HK-WK-3 type muffler series
3.3 Exhaust and vent muffler series
3.3.1 HP-QP-1 type muffler series
3.3.2 HP-GP-2 type muffler series
3. 3.3 HP-QP-3 type silencer series
3.4 Comparison of old and new silencer models
Technical requirements,
5 Selection of silencer··
Installation of silencer·
7 Test methods and inspection rules·
8 Marking, packaging, transportation, storage
Appendix A Determination of pressure loss coefficient of silencer Appendix B Evaluation method of silencer
Appendix C Instructions for the preparation of technical requirements for the manufacture and installation of sound-absorbing components
1 General provisions
Scope of application
The silencers in this standard series are suitable for the silencer of various noise-generating equipment in chemical production. Different types of silencers are selected according to the type, technical parameters and specifications of the sound-generating equipment. The maximum sound absorption volume is within 5OdB(A). 1.2 Classification
Silencers can be divided into five categories according to the silencer principle and structure, and each category is divided into different types, as shown in Table 1.2. In actual engineering, they can be divided into fan silencers, air compressor silencers, exhaust jet silencers, etc. according to the type of equipment.
Silencers
Silencer classification
Included types
Straight pipe type, sheet type,
folded plate type sound flow
type, honeycomb type, curved
type, expansion chamber type, resonance
Silencers
Impedance composite type
Micro-perforated plate
Silencers
Injection type
Silencers
Cavity interference type
Resistance-expansion type
Resistance-common type| |tt||Resistance-diffusion-common typeWww.bzxZ.net
Single-layer micro-perforated plate
Silencer, double-layer micro
perforated plate silencer
Small hole injection type
Pressure reduction and expansion type
Porous diffusion type
Silence elimination frequency characteristics
With medium and high frequency
Silence elimination performance
With low and medium frequency
Sound elimination performance
With low, medium and high frequency
Sound elimination performance
With It has wide-band noise elimination performance and wide-band noise elimination characteristics. It is suitable for eliminating the noise of fans and gas turbine intakes, etc. It is suitable for eliminating the noise of air compressors, internal combustion engines, and automobile exhaust. It is suitable for eliminating the noise of blowers and engine test platforms. It can be used in high temperature, humidity, moisture, oil, mist, and powder. Dust and places requiring special cleanliness and hygiene. Applicable to eliminate noise emitted by pressurized gas, exhaust gas from boilers, and noise emitted by chemical process gases. 13.1 Resistive silencer 1.3 Characteristics of five types of silencers Resistive silencer uses the friction of sound waves propagating in porous sound-absorbing materials to convert sound energy into heat energy and dissipate it to achieve the purpose of silencer. Resistive silencer has good mid- and high-frequency silencer performance. 1.3.2 Resistant silencer This type of silencer uses the principles of sound wave reflection and related resonance to absorb or hinder the propagation of sound energy. It is suitable for eliminating mid- and low-frequency noise or narrow-band noise. 1.3.3 Micro-perforated plate silencer
This type of sliding silencer is a both resistive and anti-resonance silencer based on a microporous acoustic structure. This silencer can withstand the impact of high airflow speed, is resistant to high temperature, is not afraid of water and moisture, and can withstand a certain amount of dust.
1.3.4 Composite silencer
In order to achieve a wide-band, high-absorption silencer effect, resistive and reactive silencers can be combined into a composite silencer. This type of silencer has both resistive sound-absorbing materials and acoustic filtering devices such as resonators, expansion chambers, and perforated screens. 1.3.5 Expansion and pressure-reducing, small-hole injection exhaust vent silencer An exhaust vent silencer designed to reduce high-temperature, high-speed, and high-pressure exhaust jet noise.
From the structural point of view, fan silencers and air compressor silencers are mostly resistive or impedance compound silencers, and exhaust jet silencers are mostly throttling and pressure reduction, expansion and speed, or small emulsion injection type silencers.
Series parameters and marking methods
2.1 Series parameters and marking methods of fan silencers Series parameters include: model, air volume (flow), wind speed, overall dimensions, installation dimensions (flange dimensions) and weight, etc.
Marking method
HF-- X× -XX
Muffler serial number
Characteristics, use
Chemical fan
2.2 Series parameters and marking methods of air compressor silencers Series parameters include: model, applicable air volume, overall dimensions, connection flange dimensions, silencer volume, weight, etc.
Marking method
XX XX
Muffler serial number
Characteristics, use
Chemical air compressor
Exhaust venting muffler series parameters and marking method 2.3
Series parameters include: model, applicable gas volume, overall dimensions, connection dimensions, muffler volume, weight, etc.
Marking method
Muffler serial number
Characteristics, use
Chemical exhaust
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