NB/T 10419-2020 English PDFUS$229.00 · In stock
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Basic dataStandard ID: NB/T 10419-2020 (NB/T10419-2020)Description (Translated English): (Air source heat pump flue-curing room) Sector / Industry: Energy Industry Standard (Recommended) Classification of Chinese Standard: X86 Word Count Estimation: 10,141 Date of Issue: 2020-10-23 Date of Implementation: 2021-02-01 Regulation (derived from): National Energy Administration Announcement No. 5 of 2020 Issuing agency(ies): National Energy Administration NB/T 10419-2020: (Air source heat pump flue-curing room)---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.Tobacco flue-curing barn by air-sourced heat pump Record number. NB Energy Industry Standards of the People's Republic of China Air source heat pump flue-curing room 2020-10-23 released 2021-02-01 implementation Issued by the National Energy Administration Table of contentsPreface...1 1 Scope...2 2 Normative references...2 3 Terms and definitions...2 4 Technical requirements...3 5 Installation and commissioning...5 6 Test method...6 7 Acceptance...7 Appendix A (informative) Completed acceptance report of flue-cured tobacco house...9ForewordThis document starts from the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" grass. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China Rural Energy Industry Association and the General Station of Agricultural Ecology and Resources Protection of the Ministry of Agriculture and Rural Affairs. This document is under the jurisdiction of the Energy Industry Rural Energy Standardization Technical Committee (NEA/TC8). Drafting organizations of this document. China Energy Conservation Association, Guangdong Fenix Energy Saving Equipment Co., Ltd., Guangzhou Shengqi Energy Equipment Co., Ltd., Zhejiang Zhongguang Electric Co., Ltd., Guangdong Niuentai New Energy Technology Development Co., Ltd., Dongguan Zhengxu New Energy Equipment Technology Co., Ltd. Company, Qingdao Economic and Technological Development Zone Haier Water Heater Co., Ltd., Zhuhai Gree Electric Co., Ltd., Shanghai Bohan Thermal Energy Technology Co., Ltd. Company, Ningbo Deye Daily Appliance Technology Co., Ltd., Suzhou Invent Scroll Technology Co., Ltd., Emerson Environmental Optimization Technology (Suzhou) have Co., Ltd., Danfoss Automatic Control Management (Shanghai) Co., Ltd., Zhejiang Zhengli Bioenergy Technology Co., Ltd., Zhongjiayuan (Beijing) Certificate Co., Ltd., Jiangxi Tianquan Thermal Energy Technology Co., Ltd., Hefei Royalstar Solar Co., Ltd., Guangdong Juteng Environmental Protection Equipment Co., Ltd., Foshan Nanhai Juteng Environmental Protection Equipment Co., Ltd., Ningxia Saishang Sunshine Solar Energy Co., Ltd., Shenzhen Power New Energy Technology Co., Ltd. Company, Zhejiang Oulun Electric Co., Ltd., Guangdong Weiersin Industrial Co., Ltd., Hunan Xindi New Energy Technology Co., Ltd., Foshan Ou Si Dan Hot Energy Technology Co., Ltd., Dongguan Kexin New Energy Equipment Co., Ltd., Henan Wanbao New Energy Holding Co., Ltd., Qingdao Hisense Hitachi Air Conditioning System Co., Ltd., Guangdong Huatiancheng New Energy Technology Co., Ltd., Yuxi Xintianli Agricultural Equipment Manufacturing Co., Ltd., Guangdong Tongyikong Chineng Technology Co., Ltd. The main drafters of this document. Zhao Hengyi, Lei Pengfei, Shi Zengkuang, Yu Taizeng, Zhao Misheng, Chen Xiangquan, Li Bo, Zhang Longai, Xue Shishan, Qiu Aiqi, Wen Maohua, Li Changsheng, Tang Xiaohui, Wu Guangchen, Li Xin, Chen Minfeng, Zhang Huijun, Gui Haiyan, Yang Haitao, Luo Yu, Li Xianghong, Chen Xianyong, Chen Qiwen, Yang Xing, Huang Kaichen, Zhu Wenda, Zhou Ze, Zhang Wenqiang, Guo Jianyi, Liang Yewang, Tang Bikui. Air source heat pump flue-curing room1 ScopeThis document specifies the terms and definitions, technical requirements, installation and commissioning, and testing methods for air source heat pump flue-curing rooms (hereinafter referred to as flue-curing rooms) Law and acceptance. This document is applicable to flue-curing rooms that use air source heat pumps as heat sources for tobacco leaf preparation.2 Normative referencesThe contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated reference documents, Only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document file. GB/T 3768 Acoustic sound pressure method is used to determine the sound power level and sound energy level of noise sources. A simple method using the envelope measurement surface above the reflecting surface GB/T 18771.1 Tobacco Terminology Part 1.Tobacco Types and Tobacco Leaf Production GB 50168 Code for Construction and Acceptance of Cable Lines of Electrical Installation Engineering GB 50169 Code for construction and acceptance of grounding devices for electrical installations GB 50171 Electrical installation engineering panel, cabinet and secondary circuit wiring construction and acceptance specification GB 50258 Code for Construction and Acceptance of Wiring Engineering of 1kV and Below for Electrical Installation Engineering GB 50303 Code for Construction Quality Acceptance of Building Electrical Engineering NB/T 10156 General Technical Specification for Air Source Heat Pump Drying Unit NB/T 10420-2020 Air source heat pump flue-curing barn tobacco leaf modulation technical regulations3 Terms and definitionsThe following terms and definitions defined in GB/T 18771.1 and NB/T 10156 apply to this document. 3.1 Tobacco flue-curing barn by air-sourced heat pump The return air from the smoke chamber and the ambient air are used as the low-temperature heat source of the heat pump, and the airflow closed circuit or open and closed circuit combined circulation mode is adopted to enter the return air from the smoke chamber. It is a device for process dehumidification and heat recovery, which is used for baking and preparing fresh tobacco leaves. 3.2 Tobacco loading chamber The space for hanging tobacco leaves in the flue-curing room is composed of a tobacco rack and a wall enclosure structure. 3.3 Conjoined flue-cured tobacco barn The arrangement of flue-curing rooms with shared walls includes two structural forms. "side-by-side conjoined" and "tian-shaped conjoined". 3.4 Modulation The process of using natural temperature and humidity or artificial control of temperature and humidity to make the harvested tobacco leaves yellow, fragrant and dry. Including roasting, Drying and outdoor drying, etc. 3.5 Specific electric consumption of tobacco leaf Air source heat pump flue-cured tobacco room tobacco leaves during the whole process of preparing, the electricity consumed per kilogram of water evaporated by the tobacco leaves.4 Technical requirements4.1 Basic requirements 4.1.1 The air source heat pump unit of the flue-curing room should meet the requirements of NB/T 10156. 4.1.2 The circulating fan of the flue-curing room should be an axial fan, and the air volume should not be less than 15000m3/h under the working condition of full pressure of 250 pa. Fan The insulation class is above F and the protection class is above IP54. 4.1.3 The air flow between the fume chamber and the heat pump unit should be closed or open and closed, and the return air from the fume chamber should first enter the heat pump unit for dehumidification. The module area, then flows through the condenser. 4.2 Structural requirements 4.2.1 The structure of flue-cured tobacco house 4.2.1.1 When the inner dimension is 8.0m long, the length of the two vertical middle cigarette holders is 2600mm, 100mm, 2600mm, and 2600mm. 100mm, 2600mm. The cross-sectional structure of the flue-curing room with an airflow-down concrete structure should meet the requirements of Figure 1.The “hot air inlet” in Figure 1 The position of the “opening” and the “hot air return vent” are exchanged, that is, the cross-sectional structure of the flue-curing room with air-lifting concrete structure. The inner part of the flue-curing room with thermal insulation board structure The dimensions are the same as in Figure 1. Figure 1 Sectional structure of a single-seat flue-curing room 4.2.1.2 When the inner dimension is 6.0m long, 1 vertical middle cigarette holder, the length of the inner dimension is 2950mm, 100mm, 2950mm, The rest is the same as Figure 1. 4.2.2 Smoking room 4.2.2.1 Specifications The internal dimensions shall be 8.0m in length, 2.7m in width and 3.7m in height, or 6.0m in length, 2.7m in width and 3.7m in height. 4.2.2.2 Ground The ground should be level with no slope; the ground adopts a composite thermal insulation structure, and a 50mm thick thermal insulation layer is added on the concrete foundation. Lay aluminized reflective film on top, and then lay silicon crystal mesh, and pour a 50mm thick concrete surface layer on the top layer; the thickness of aluminized reflective film is ≥35μm; The thermal insulation layer adopts polystyrene foam board or polyurethane foam board; the density of polystyrene foam board is ≥18kg/m3, and the polyurethane foam board is dense Degree ≥38kg/m3; silicon crystal mesh mesh size ≤50mm×50mm, weight ≥120g/m2. 4.2.2.3 Wall Brick-concrete structure wall, brick joints should be filled with mortar, thickness 240mm, painted inside and outside; insulation board structure wall, color steel sandwich board thickness ≥ 50mm, color steel plate thickness ≥0.426mm, polystyrene lining density ≥12kg/m3, polyurethane lining density ≥38kg/m3. 4.2.2.4 Roof When the roof is integrally poured with reinforced concrete, the thickness is ≥100mm, and a waterproof membrane is added or other waterproof measures are taken, and the waterproof level is Level two. Leak detection and repairing should be carried out on the roof of the new flue-curing room and the renovation of the flue-curing room. The ceiling should be pasted with flexible nitrile rubber polyvinyl chloride (NB R/PVC) rubber-plastic insulation board, and it is fixed by insulation nails, the distance between insulation nails is ≤900mm; the thickness of the rubber-plastic insulation board is ≥50mm, dense Degree ≤50kg/m³; when the roof adopts the insulation board structure, the insulation board should meet the requirements of 4.2.2.3. 4.2.2.5 To install the cigarette holder The cigarette holder is made of 50mm×30mm×1.2mm or 50mm×50mm×1.2mm galvanized square pipe, the bottom space is 1300mm, the head space is 1300mm 600mm, layer spacing 850mm. 4.2.2.6 Flue-cured tobacco door Set the door of the flue-cured tobacco room on the end wall, the thickness of the door is ≥50mm, and the color steel composite insulation board is adopted. The thickness of the color steel plate is ≥0.426mm, and The density of olefin lining is ≥18kg/m³, and the density of polyurethane lining is ≥38kg/m3.Rubber sealing strips are set around the door frame and the edge of the door. The pressing device adopts a lever door lock clip. The door of the flue-cured tobacco room should be opened in two opposite directions, and the door of the flue-cured tobacco room should be fully open when loading and unloading tobacco. Each door of the flue-curing room There should be no less than 3 hinges with the door frame, and no irreversible deformation should occur due to the torque of the door's own weight. 4.2.2.7 Observation window Set a vertical observation window on the door and side wall of the flue-curing room. The observation window on the door is set on the left door, in the middle of 900mm from the bottom edge, Specification 800mm×300mm. The observation window on the side wall is set at a position 320mm from the side wall on the left and 700mm from the ground. Specifications 1800mm×300mm. The observation window adopts the structure of hollow insulation glass or inner layer glass and outer layer insulation board. 4.2.2.8 Inlet (return) tuyere Airflow down-type flue-curing room, the air inlet of the smoking room is opened on the end of the partition wall, the specification is 2700mm×400mm; the return air inlet is opened on the partition wall The lower end is 1400mm×400mm in size. Airflow type flue-curing room, the air inlet of the smoking room is opened at the lower end of the partition wall, the specification is 2700mm×400mm, and the return air inlet is opened on the partition wall The upper end is 1400mm×400mm in size. Barbed wire should be installed at the return air outlet, and the mesh size should be less than 30mm×30mm. 4.3 Performance requirements 4.3.1 Batch processing volume When the inner size of the flue-cured tobacco room is 8.0m in length, the batch volume of fresh tobacco leaves should be 4000kg ~ 4500kg; when the inner size of the flue-cured tobacco room is 6.0m in length, The batch volume of fresh tobacco leaves should be 3000 kg ~ 3500 kg. 4.3.2 Electricity consumption per unit moisture evaporation of tobacco leaves The power consumption per unit moisture evaporation of tobacco leaf should meet the requirements of Table 1, and should not be higher than 105% of the stated value. The power consumption of the unit should not be large 110% of the stated value. Note. ta is the average ambient temperature during the test 4.3.3 Electronic control device 4.3.3.1 The electronic control device of the flue-curing room should be able to reliably achieve the control process requirements specified in 7.3 of NB/T 10420-2020. 4.3.3.2 The control deviation of the temperature and humidity of the flue-curing room relative to the set target value is. temperature ± 2 ℃; relative humidity ± 5%. 4.3.3.3 The electric control device of the flue-curing room shall also have the following functions. a) Start and run the program; b) Chain protection, automatic alarm; c) Motor overload protection, leakage protection and phase loss protection; d) Setting and display of hot air dry bulb temperature, wet bulb temperature and operating time of each temperature stage; e) Keep history record function; f) Manual adjustment function. 4.3.4 Noise The arithmetic mean of the measured noise of the flue-cured tobacco house should not exceed 85 dB(A).5 Installation and commissioning5.1 Installation 5.1.1 Basics 5.1.1.1 The foundation of the heat pump of the flue-curing room should be a level concrete pouring ground with a pouring thickness of not less than.200mm. The poured concrete is C20 concrete, 1.2.5 cement mortar surface layer above the concrete, the flatness is not more than 3mm. 5.1.1.2 Drainage grooves should be set on the foundation. 5.1.1.3 The grounding pile shall be buried near the heat pump foundation of the flue-cured tobacco house. The grounding pile shall be 50 mm×50 mm galvanized angle steel with a buried depth of 3m. Grounded The pile can be used in a single-seat flue-curing room, or it can be shared by several nearby flue-curing rooms. 5.1.2 Equipment 5.1.2.1 The shell deformation and scratches should not be caused when installing the heat pump unit. The fume chamber and heat pump unit should be easy to clean, no dead ends, clean water Should be able to drain. 5.1.2.2 The connecting air duct between the smoking chamber and the heat pump unit shall be made of brick-concrete structure masonry or made of color steel insulation board, and the connection of color steel insulation board shall be The seams are sealed with glass glue or aluminum foil tape, and the circulating fan is activated to prevent internal and external air leakage. 5.1.2.3 The flue-curing room should be equipped with a backup generator set, and the rated output of the generator set should not be less than the total power required by the flue-curing room during a power failure. with. 5.1.3 Electronic control device 5.1.3.1 During the installation of power distribution, the cross-sectional area of the incoming line and contactor specifications of each flue-curing room shall meet the requirements of 30kW electricity under heavy load modulation conditions. 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