|
US$1159.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 27698.7-2011: Test method for the performance of heat exchangers and heat exchange element -- Part 7: Measurement of noise from air-cooled heat exchangers
Status: Obsolete
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 27698.7-2011 | English | 1159 |
Add to Cart
|
5 days [Need to translate]
|
Test method for the performance of heat exchangers and heat exchange element -- Part 7: Measurement of noise from air-cooled heat exchangers
| Obsolete |
GB/T 27698.7-2011
|
PDF similar to GB/T 27698.7-2011
Basic data | Standard ID | GB/T 27698.7-2011 (GB/T27698.7-2011) | | Description (Translated English) | Test method for the performance of heat exchangers and heat exchange element -- Part 7: Measurement of noise from air-cooled heat exchangers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J75 | | Classification of International Standard | 27.060.30 | | Word Count Estimation | 29,295 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-06-01 | | Quoted Standard | GB/T 3241; GB/T 3785; GB/T 4129; JJG 176; JJG 188; NB/T 47007 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 22 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the cooler noise A-weighted sound level, octave sound pressure level and sound power level determination. This section applies to bundle horizontal induced draft air cooler, blast air cooler. Barn, wet, wet and dry joint type and other types of air coolers noise measurement method can refer to this part. This part is not a single component for generating noise (such as the impeller, transmission and motors, etc.). Determination under this Part includes two types: a) factory test: the factory in the factory before the separate determination of a cross noise, b) Field test | GB/T 27698.7-2011: Test method for the performance of heat exchangers and heat exchange element -- Part 7: Measurement of noise from air-cooled heat exchangers
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for the performance of heat exchangers and heat exchange element Part 7. Measurement of noise from air-cooled heat exchangers
ICS 27.060.30
J75
National Standards of People's Republic of China
Heat exchangers and heat transfer device performance test methods
Part 7. Determination of Air Cooler Noise
Part 7. Measurementofnoisefromair-cooledheatexchangers
Issued on. 2011-12-30
2012-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Determination of the amount and the measurement error of 2
5 3 acoustic testing environment
Test equipment 4 6
7 Test Method 4
Appendix A (normative) Correction acoustic test environment 13
Annex B (informative) Determination of noise across a single example of a report 14
Example 20 Noise Measurement Report Annex C (informative) a cell site
Foreword
GB/T 27698 "heat exchangers and heat transfer device performance test methods" is divided into eight sections.
--- Part 1. General requirements;
--- Part 2. shell and tube heat exchanger;
--- Part 3. plate heat exchanger;
--- Part 4. spiral plate heat exchanger;
--- Part 5. shell and tube heat exchanger heat transfer tubes;
--- Part 6. Used for air cooling fin tube;
--- Part 7. Air Cooler noise measurement;
--- Part 8. Calibration of industrial heat exchangers.
This section GB/T 27698 Part 7.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part of the National boiler pressure vessel Standardization Technical Committee (SAC/TC262) and focal points.
This section is responsible for drafting units. High-tech Gansu Lanke Petrochemical Equipment Co., Ltd. (Lanzhou Petroleum Machinery Research Institute).
It participated in the drafting of this section. Country refining oil drilling equipment for Quality Supervision and Inspection Center, industrial machinery energy-saving projects Heat Transfer Technology
Center, China Petrochemical Engineering Construction Corporation.
The main drafters of this section. Han Zhuo Ma, Zhao Liang, Li Su, Niemeng Qiu, Zhang Ying Kai.
Heat exchangers and heat transfer device performance test methods
Part 7. Determination of Air Cooler Noise
1 Scope
1.1 Subject Matter
This section GB/T 27698 specifies the A sound level measuring method octave sound pressure level and sound power level of air cooler noise.
1.2 Scope
1.2.1 This section applies to horizontal tubes induced draft air cooled heat exchangers, forced-air cooler. Slant, wet, wet and dry, and other joint formula
Noise measurement method type air cooler may refer to this part. This section does not apply to individual components that generate noise (such as impellers, transmission unit
Set and motors, etc.).
1.2.2 This type of assay section shall consist of two types.
a) Factory test. the factory before the product is delivered with a single span noise measurement;
b) field test. the noise on the field means a unit of measurement.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 3241 octave and fractional octave filters
GB/T 3785 sound level meter electric, acoustic performance and test methods
Performance and calibration of GB/T 4129 Acoustics Determination of sound power levels for standard sound source requirements
JJG176 acoustic calibrator verification procedures
JJG188 sound level meter verification procedures
NB/T 47007 (JB/T 4758) air-cooled heat exchangers
3 Terms and Definitions
The following terms and definitions apply to this section.
3.1
Cross-bay
One or more of a bundle with one or more than one fan, assembled from a skeleton and other appurtenances empty
Cooler.
3.2
Unit unit
A cross or air cooler across simultaneously.
3.3
Blower Air Cooler induced-draughtexchanger
Bundle placed fan suction side of the air cooler.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 27698.7-2011_English be delivered?Answer: Upon your order, we will start to translate GB/T 27698.7-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 27698.7-2011_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 27698.7-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|