GB/T 7190.2-2018 English PDFUS$559.00 ยท In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 7190.2-2018: Mechanical draft cooling towers -- Part 2: Large open cooling towers Status: Valid GB/T 7190.2: Historical versions
Basic dataStandard ID: GB/T 7190.2-2018 (GB/T7190.2-2018)Description (Translated English): Mechanical draft cooling towers -- Part 2: Large open cooling towers Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Q23 Classification of International Standard: 83.120 Word Count Estimation: 28,296 Date of Issue: 2018-12-28 Date of Implementation: 2019-11-01 Older Standard (superseded by this standard): GB/T 7190.2-2008 Regulation (derived from): National Standard Announcement No. 17 of 2018 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 7190.2-2018: Mechanical draft cooling towers -- Part 2: Large open cooling towers---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.Mechanical draft cooling towers--Part 2. Large open cooling towers ICS 83.120 Q23 National Standards of People's Republic of China Replace GB/T 7190.2-2008 Mechanical ventilation cooling tower Part 2. Large open cooling tower Published on.2018-12-28 2019-11-01 implementation State market supervision and administration China National Standardization Administration issued ForewordGB/T 7190 "Mechanical Ventilation Cooling Tower" is divided into three parts. --- Part 1. Small and medium-sized open cooling towers; --- Part 2. Large open cooling towers; --- Part 3. Closed cooling tower. This part is the second part of GB/T 7190. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 7190.2-2008 "glass fiber reinforced plastic cooling tower Part 2. large glass fiber reinforced plastic cold But the tower. The main changes in this section compared with GB/T 7190.2-2008 are as follows. ---The standard name was changed from "glass fiber reinforced plastic cooling tower part 2. large glass fiber reinforced plastic cooling tower" to "machine Mechanical Ventilation Cooling Tower Part 2. Large Open Cooling Towers; --- Revised the scope of application, and modified the "mechanical ventilation industrial cooling tower" to "reverse flow, cross-flow mechanical ventilation with water-filled packing" Cooling tower" (see Chapter 1, Chapter 1 of the.2008 edition); ---Modified and deleted some of the reference standards, increased the structure of fiber reinforced composite pultruded profiles, noise measurement correction technology The required reference standard (see Chapter 2, Chapter 2 of the.2008 edition); ---Modified and deleted some terms and definitions, stipulated to refer to the terms and definitions in GB/T 7190.1 (see Chapter 3,.2008 edition) Chapter 3); ---Modified the product labeling regulations (see 4.2,.2008 edition 4.2); --- Modify "thermal performance" to "cooling performance" "standard design conditions" to "standard operating conditions" (see 5.1,.2008 edition) 5.1); --- Increase the energy efficiency rating and divide it into 1st, 2nd, 3rd, 4th and 5th grades according to the power consumption ratio (see 5.3,.2008 edition) 5.3); --- Increased the appearance of the tower material, the thickness of the zinc-impregnated layer of the metal parts, and the performance requirements of the composite parts such as the molded parts and the pultruded profile products. Requirements for Bakr hardness, resin content, envelope structure and duct appearance (see 5.5, 5.5 of.2008); --- Modify the requirements of the water-filling filler (see 5.6, 5.6 of the.2008 edition); ---Test method for modifying the filler (see 6.6, 6.6 of the.2008 edition); --- Modify the inspection items and judgment rules of the factory inspection (see 7.2.1 and 7.2.3, 7.3.2 of the.2008 edition); ---Modification of type inspection rules (see 7.3.4),.2008 edition of 7.3.4.3); --- Increased environmental conditions for the use of cooling tower products (see 9.8); --- The test report is given in the corresponding appendix (see Appendix A, Appendix C, Appendix D, Appendix E, 9.9 of the.2008 edition); --- Removed the main symbols and units in Appendix A, the correction of the measured value of the air wet bulb temperature in the tower, the calculation of the heat balance, etc. Changed the sign and calculation formula of the cooling number (see Appendix A, Appendix A of the.2008 edition); --- Revised the power consumption ratio calculation formula (see Appendix D, Appendix C of the.2008 edition). This part was proposed by the China Building Materials Federation. This part is under the jurisdiction of the National Fiber Reinforced Plastics Standardization Technical Committee (SAC/TC39). This section is responsible for drafting units. Beijing FRP Research and Design Institute Co., Ltd., China Institute of Water Resources and Hydropower Research, Tsinghua University, China Petrochemical Engineering Construction Co., Ltd., Southwest Electric Power Design Institute Co., Ltd. Participated in the drafting of this section. Jiangsu Seagull Cooling Tower Co., Ltd., Sinochem Engineering Cangzhou Cooling Technology Co., Ltd., Guangzhou Technology Development Co., Ltd., Shanghai Jinri Cooling Equipment Co., Ltd., Dalian Sband Environmental Equipment Co., Ltd., Zhejiang Jinling Refrigeration Engineering Limited company, Zhejiang Shangfeng Cooling Tower Co., Ltd., Zhejiang Dongjie Cooling Tower Co., Ltd., Nanjing Sbel Composite Materials Co., Ltd. The main drafters of this section. Yin Zheng, Zhao Shun'an, Feng Peng, Liu Lisheng, Zhang Lichen, Wu Langzhou. The previous versions of the standards replaced by this section are. ---GB/T 7190-1987; ---GB/T 7190.2-1997, GB/T 7190.2-2008. Mechanical ventilation cooling tower Part 2. Large open cooling tower1 ScopeThis part of GB/T 7190 specifies the product classification and marking, requirements, test methods, inspection rules, markings of large open cooling towers. Packaging, transportation, storage and others. This part is applicable to the counter-flow, cross-flow mechanical ventilation open cooling tower with single tower cooling water volume of not less than 1000m3/h and water-filled packing.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 1449 fiber reinforced plastic bending performance test method GB/T 2518 continuous hot-dip galvanized steel sheet and strip GB/T 7190.1 Mechanical Ventilation Cooling Tower Part 1. Small and Medium Open Cooling Towers GB/T 8924 Fibre reinforced plastics - Determination of burning performance - Oxygen index method Technical requirements and test methods for hot-dip galvanized coating of GB/T 13912 metal-clad steel parts GB/T 31539-2015 Structural fiber reinforced composite pultruded profiles Technical conditions for DL/T 742 cooling tower plastic parts HJ706 Environmental Noise Monitoring Technical Specification Noise Measurement Correction3 Terms and definitionsThe following terms and definitions as defined in GB/T 7190.1 apply to this document. 3.1 Watering filler fil A device for contacting circulating cooling water with air in the form of a water film or water droplets to increase the contact area and prolong the contact time. filler. 3.2 Water distribution system coolingwaterdistributionsystem A device that uniformly sprays circulating cooling water onto the top of the packing, consisting of a sink or pipe and a spray head. 3.3 Water collector drifteliminator A device used to collect water droplets entrained in the tower air.4 Product classification and marking4.1 Product Classification Cooling towers are classified into two types, countercurrent and crossflow, depending on the relative flow direction of water and air in the packing. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 7190.2-2018_English be delivered?Answer: Upon your order, we will start to translate GB/T 7190.2-2018_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 7190.2-2018?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7190.2-2018 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
