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Basic dataStandard ID: MZ/T 142-2019 (MZ/T142-2019)Description (Translated English): General technical conditions for fuel gas cremator Sector / Industry: Chinese Industry Standard (Recommended) Classification of Chinese Standard: J88 Word Count Estimation: 13,147 Date of Issue: 2019-12-12 Date of Implementation: 2019-12-12 Issuing agency(ies): Ministry of Civil Affairs MZT142-2019: General technical conditions for fuel gas cremator---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.General technical conditions for fuel gas cremator MZ Civil Administration Industry Standards of the People's Republic of China General technical requirements for gas cremators 2019-12-12 Release 2019-12-12 Implementation Published by the Ministry of Civil Affairs of the People's Republic of China ICS 13.030 J 88 Record number. XXXXX-XXXX ContentsForeword ... Ⅱ 1 Scope ... 1 2 Normative references ... 1 3 Terms and definitions ... 1 4 Technical requirements ... 3 5 Safety and Environmental Requirements ... 5 6 Inspection rules ... 6 7 Test methods ... 7 8 Packaging, identification and acceptance documents ... 7 References ... 9ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Ministry of Civil Affairs of the People's Republic of China. This standard is under the jurisdiction of the National Funeral Standardization Technical Committee (SAC/TC 354). This standard was drafted. Weihai Luyuan Technology Environmental Protection Equipment Co., Ltd., China Funeral Association, National Environmental Analysis and Testing Center, Beijing Academy of Safety Science and Technology, Beijing Babaoshan Funeral Home, Qinhuangdao Haitao Wanfu Environmental Protection Equipment Co., Ltd Funeral home in Xinxiang City. The main drafters of this standard. Ding Chong, Gao Shandong, Xiao Chenglong, Liu Aimin, Liu Yaofeng, Wei Tong, Wang Lishuan, Li Jianxing, Wang Hao, Zhang Yujuan, Sun Zhiyong, Sun Yanliang, Wang Zhongzhou, Ma Lili. General technical requirements for gas cremators1 ScopeThis standard specifies the general technical requirements, safety and environmental protection requirements, inspection rules, test methods, packaging, and standards for gas cremators. Identification and acceptance documents. This standard applies to all types of gas cremators.2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies This document. For undated references, the latest version (including all amendments) applies to this document. GB/T 1226 general pressure gauge GB 2888 Noise measurement method for fans and roots blowers GB/T 3091 Welded steel pipe for low-pressure fluid transportation GB 5226.1 Mechanical and electrical safety. Mechanical and electrical equipment. Part 1. General technical requirements GB 7231 basic identification colors, identification symbols and safety signs of industrial pipelines GB/T 7251.1 Low-voltage switchgear and control equipment. Part 1. General GB/T 8163 seamless steel pipe for fluid GB/T 10233 Basic test methods for low-voltage switchgear and electrical control equipment GB/T 10325 Sampling inspection rules for acceptance of shaped refractory products GB/T 10326 Inspection methods for size, appearance and section of shaped refractory products GB 13801 Emission Standard for Air Pollutants in Crematorium GB/T 14525 General Specifications for Corrugated Metal Hose GB/T 16618 General rules for industrial furnace insulation technology GB/T 19054-2003 General technical requirements for fuel cremator GB/T 30597 General requirements for safety and control devices for gas burners and burning appliances GB 50028 Urban Gas Design Code GB 50057 Design Code for Lightning Protection of Buildings GB 50058 Design code for electrical installations in explosive atmospheres GB 50211 Code for Construction and Acceptance of Industrial Furnace Masonry GB 50254 Code for Construction and Acceptance of Low Voltage Electrical Apparatus for Electrical Installation GB 50309 Quality Acceptance Standard for Industrial Furnace Masonry GB 50494 Technical Specifications for Town Gas CJJ 33 Code for Construction and Acceptance of Town Gas Transmission and Distribution Projects CJJ/T 146 Technical Regulations of Town Gas Alarm Control System HG/T 20675 Design code for electrostatic grounding of chemical companies NB/T 47055 Technical requirements for painting and packaging of boilers JB/T 3375 Boiler materials acceptance rules3 terms and definitionsGB/T 19054-2003 defines and the following terms and definitions apply to this document. 3.1 Fuel gas cremator A cremator powered by a combustible gas. Note. It usually consists of furnace body, combustion system, electronic control system, discharge system and corpse system. 3.2 Furnace body The main part of the cremator. It consists of main combustion chamber, recombustion chamber, brick structure and outer structure. [GB/T 19054-2003, definition 3.2] 3.3 Main combustion chamber The space in the furnace used to directly cremate the remains. [GB/T 19054-2003, definition 3.3] 3.4 Reburning chamber The space inside the furnace used to burn flammable substances emitted from the main combustion chamber. [GB/T 19054-2003, definition 3.4] 3.5 Brick structure Furnace body part made of refractory, heat preservation and other materials. [GB/T 19054-2003, definition 3.5] 3.6 Outer structure Furnace shell composed of rigid skeleton, components and decorative parts. [GB/T 19054-2003, definition 3.6] 3.7 Air and gas system A combination of all equipment that provides air and combustible gases for combustion. 3.8 Electric control system A combination of all power supply equipment and control equipment of the cremator. [GB/T 19054-2003, definition 3.8] 3.9 Flue gas exhaust system A combination of cremator smoke emissions, purification treatment and cremation residue collection equipment. 3.10 System for inputting corpse A combination of all equipment that feeds the remains into the main combustion chamber. [GB/T 19054-2003, definition 3.10] 3.11 Gas consumption The average volume of combustible gas consumed by a gas cremator to cremate normal remains. Note. It is usually expressed in Nm³. 3.12 Bench type cremator The cremator is integrated with the moving surface of the furnace body. [GB/T 19054-2003, definition 3.12] 3.13 Plate type cremator A cremator with a flat structure is a fixed surface of the main combustion chamber of the furnace body for carrying the remains to burn. 3.14 Rack type cremator The main surface of the main combustion chamber of the furnace body is a cremator with a fixed structure for the combustion of the remains. 3.15 Fuel gas It is a substance that burns as cremated fuel and is gaseous at normal temperature and pressure. Note. Including natural gas, coal gas and liquefied petroleum gas.4 Technical requirements4.1 Environmental conditions Gas cremator should be able to work normally in the following environmental conditions. a) Ambient temperature. -30 ℃ ～ 45 ℃; b) relative humidity ≤85℅; c) Voltage fluctuation ± 5. 4.2 Performance 4.2.1 During continuous cremation of a gas cremator, the average cremation time of each remains shall meet the following requirements. a) The cremator of each model is ≤60min; b) Flat cremator ≤50min; c) Shelf cremator ≤40min. 4.2.2 The average gas consumption (based on pipeline natural gas) of each remains of a gas cremator should meet the following requirements respectively begging. a) cremator of each model ≤50Nm³; b) Gas consumption of flat cremator ≤40Nm³; c) The gas consumption of the cremator is less than or equal to 35Nm³. The use of other combustible gases as cremation fuel should be converted to the equivalent of the natural gas consumption of the pipeline according to its low calorific value. 4.2.3 The service life of gas cremator should meet one of the following requirements. a) use time > 5 years; b) Cumulative cremation amount > 5000 remains. 4.2.4 The gas type cremator should be installed with the detection and control instruments of the following items, and the detection and control accuracy should not be less than 1.5. a) the temperature of the main combustion chamber; b) recombustion chamber temperature; c) Flue gas temperature at the furnace flue outlet; d) main combustion chamber pressure; e) recombustion chamber pressure; f) Air consumption. 4.2.5 The temperature rise of the decorative surface outside the furnace should be ≤50 ° C. The burner fixing plate, the entrance door of the corpse, the operation door and a part of the outer surface of the observation hole The temperature rise should be ≤60 ℃. 4.2.6 The ground track gauge of the corpse truck is determined to be 1850mm. 4.2.7 The width and height of the door of the main combustion chamber and the mortuary furnace shall be adapted to the needs of technical updates. 4.2.8 The fire resistance temperature of the inner wall of the brick structure of the main combustion chamber and the recombustion chamber shall be > 1200 ° C. 4.2.9 Expansion joints for compensating thermal expansion shall be left in the refractory bricks and prefabricated masonry of the main combustion chamber and recombustion chamber of the gas type cremator. 4.2.10 After the normal burning of.200 gas-fired cremators, the refractory surfaces of the main and reburning chambers shall be free from spalling, cracks and air hole. 4.2.11 The insulation resistance of the electrical lines of the electrical control system shall be > 20MΩ. 4.2.12 The limit temperature rise of each electrical circuit, component and device of the electronic control system shall meet the relevant regulations in GB/T 7251.1. 4.2.13 The ash deposits in the flue duct and flue gas discharge system of the furnace of the gas type cremator shall be provided. 4.2.14 The main combustion chamber shall be provided with observation holes to facilitate observation of the combustion state. 4.2.15 The underground flue of the lower smoke gas cremator should adopt fire-resistant insulation and waterproof measures. 4.2.16 Automatically controlled corpse system, corpse furnace door and corpse car shall have automatic and manual operation functions, and shall be provided separately. Clutch device and travel limit device. 4.3 appearance requirements 4.3.1 The appearance of the gas cremator furnace should be smooth and smooth, and the metal structure of the furnace body should be complete and solid without corrosion or damage. The gaps between the joints are even and straight. 4.3.2 The components and text identification on the display and operation panel of the control cabinet of the electronic control system shall be clearly defined and arranged neatly. 4.3.3 The numbers displayed on various instruments of gas cremator and the color of the bottom plate shall have sufficient contrast. 4.3.4 Electrical lines should not be exposed. 4.3.5 The identification colors, identification symbols and safety signs of all pipes shall comply with the relevant provisions of GB 7231. 4.4 Material requirements 4.4.1 The properties of refractory materials and heat insulation materials used by gas cremators should comply with GB/T 10325, GB/T 10326, GB/T Corresponding requirements in 16618, GB 50309, refractory materials should be able to withstand high temperature, corrosion, friction and chemical erosion, masonry walls, The top and bottom should remain intact and undamaged. 4.4.2 The stacking, sampling, acceptance, storage and transportation of refractory products using gas cremators shall comply with the relevant requirements of GB/T 10325. Regulations. 4.4.3 The steel and welding materials used in the furnace body and corpse system of gas-type cremator should meet the relevant regulations of JB/T 3375. 4.4.4 Electrical materials, components and devices shall have a certificate of conformity from the factory. 4.4.5 The air supply pipeline is made of seamless steel pipe, and the end contacting high temperature parts is made of stainless steel. 4.4.6 The gas cremator should adopt fresh air preheating device. The fresh air preheating device should be made of high temperature and corrosion resistant materials. 4.5 Process requirements 4.5.1 The gas cremator should be manufactured in accordance with the drawings and relevant technical documents approved by the prescribed procedures. 4.5.2 The furnace body masonry shall meet the relevant regulations of GB 50309. 4.5.3 All parts of the gas cremator except the masonry part on site shall be tested in accordance with the requirements of the drawings. Should meet and reach Under the premise of the requirements of various technical documents, the factory or type inspection can be carried out. 4.5.4 The thermal insulation design, structure selection, thermal insulation layer thickness calculation, material selection and construction acceptance of gas-fired cremators shall comply with GB/T Relevant provisions in 16618. 4.5.5 The bent part of the air and gas pipeline shall be smooth and free from dents and wrinkles. 4.5.6 The air and air pipelines shall be installed tightly and shall not leak, and the air inlet of the fan shall be provided with a protective net. 4.5.7 The external decoration of the gas cremator should be freely dismountable to facilitate the maintenance of various components. 4.5.8 The outer surface of the weld shall be smooth and uniform. The main weld shall be smooth and polished, and no cracks or pores shall appear. 4.5.9 The central height of the installation of the gas-fired cremator indicating instrument should be 1.6m, and the emergency operation devices should be installed from the base surface. Within a height range of 0.8 to 1.6m. 4.5.10 The bare live conductors and the clearances and creepage distances between them and the enclosure shall comply with the relevant provisions of GB/T 7251.1. 4.5.11 The selection and installation of electrical components shall comply with the relevant regulations in GB/T 7251.1. 4.5.12 The electrical circuits buried in the underground part shall be protected by protection pipes as specified in GB 50254. Laid along the surface of the equipment or along the wall Electrical lines should be protected by pipes, and steel bushings should be provided near the furnace body. 4.5.13 Insulation, screen protection and protection distance of electrical equipment shall meet the relevant regulations of GB 5226.1. 4.5.14 The metal enclosure shall be provided with grounding protection, and the connection shall be reliable. The wiring and connection between control equipment shall comply with GB 50254 The relevant provisions. 4.5.15 Gas equipment, pipelines, valves and accessories shall be intact, no looseness, no leakage, and comply with GB 50494 and GB 50028 Relevant provisions. 4.5.16 The burner should be fully automatic, according to the type of gas (natural gas, coal gas, liquefied gas), heating value, and furnace pressure Other factors choose to determine its type. When the burner is connected with a hose, it should meet the relevant regulations of GB/T 14525. 4.5.17 The selection of steel pipes for indoor gas pipelines shall meet the following requirements. a) The hot-dip galvanized steel pipe is used for the low-pressure gas pipeline, and the quality meets the relevant requirements of GB/T 3091; b) Seamless steel pipes are used for medium and sub-high pressure gas pipelines, and the quality complies with the relevant regulations of GB/T 8163. 4.5.18 Valves shall be provided at the following parts of the gas pipeline. a) gas inlet pipe; b) in front of the gas meter; c) in front of the burner. 4.5.19 Ball valves should be used for gas pipeline valves. 4.5.20 After installation of the gas pipeline system, an inflation pressure test shall be carried out, which shall comply with the relevant regulations of CJJ 33. 4.5.21 The gas pipeline shall be provided with a pressure regulating device. The pressure regulating device shall have alarms and automatic shutdown functions for abnormal working conditions; equipment A manual emergency stop device should be installed nearby and should comply with the relevant regulations of GB 50028. 4.5.22 Gas pipelines shall be equipped with flow meters and pressure gauges. Flow meters and pressure gauges shall comply with the relevant requirements of GB 50494 and GB/T 1226 Regulations. 4.5.23 The gas flow rate shall be determined according to the gas medium and shall comply with the relevant regulations of GB 50028. 4.5.24 The connection form of gas pipelines shall be welded or flanged; the connection of gas pipelines with equipment, containers and valves The connection can be flanged or threaded. The gas pipe connection between the adjustable angle burner and the solenoid valve should be flanged. 4.5.26 The discharge system shall have a local or overall gas collection system and a centralized purification treatment device. 4.5.27 The height of the exhaust pipe should be ≥15m, and when there is a building within a.200m radius of the exhaust pipe, the exhaust pipe should be higher than the tallest building 3m or more. 4.5.28 Gas cremator should be equipped with waste heat recovery device.5 Safety and environmental requirements5.1 Safety requirements 5.1.1 The furnace door shall be provided with a switch limit device. The furnace door lifting mechanism should be intact, and the exposed transmission part should be provided with a protective cover. 5.1.2 The furnace door, the corpse system and the ignition power supply shall be provided with interlocking devices and operate reliably. 5.1.3 Explosion-proof measures shall be taken for electrical equipment, in accordance with the relevant regulations of GB 50058. 5.1.4 The electrical system shall adopt a three-phase five-wire system. 5.1.5 The insulation, screen and protection distance of electrical equipment shall comply with the relevant regulations of GB 5226.1. 5.1.6 The power supply system and each main circuit shall have automatic load protection switches, and the loads such as motors shall have overload protection. 5.1.7 The main combustion chamber and recombustion chamber shall be provided with temperature and pressure over-limit protection and explosion relief devices. 5.1.8 The main combustion chamber and the re-combustion chamber shall be provided with an automatic ventilation system. 5.1.9 The selected burner should meet the relevant regulations of GB/T 30597. 5.1.10 When using a blower to supply air to the burner for premixed combustion, a non-return should be installed on the gas pipe behind the metering device Valve or safety relief device. 5.1.11 The gas pipeline shall be coated with yellow anti-corrosion identification paint and gas flow direction identification. 5.1.12 When laying gas pipelines, pipeline corrosion protection measures shall be taken. 5.1.13 Shut-off valves and emergency shut-off valves shall be installed on the gas pipeline. The setting of the emergency shut-off valve shall comply with the relevant regulations of GB 50028. 5.1.14 The valve on the gas pipeline is installed in a safe and easy-to-operate place and must not leak. 5.1.15 The outer anticorrosive coating of the gas pipeline shall be kept intact. When using cathodic protection, the cathodic protection shall not be interrupted. 5.1.16 Drain pipes shall be provided at the end of the gas pipeline, and the exit position of the pipes shall ensure the safety and sanitary requirements during purge and release. 5.1.17 Install a gas alarm around the gas pipeline. The gas alarm shall be interlocked with the air supply and exhaust facilities. Selection of gas alarm The use, installation and use shall comply with the relevant regulations of CJJ/T 146. 5.1.18 The entrances and exits of gas pipelines entering and exiting buildin......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of MZT142-2019_English be delivered?Answer: Upon your order, we will start to translate MZT142-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of MZT142-2019_English with my colleagues?Answer: Yes. The purchased PDF of MZT142-2019_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. 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