Metso mining machinery Tianjin
Publish: 2021-04-18 12:28:21
1. At present, there is no registered trademark
query
you can directly access the official website of China Trademark website. The judgment of the query results needs professional advice from experienced professional trademark agents. You can also entrust to help you to inquire, and give professional advice to the inquiry results directly
note: query is free. There are no identical or similar queries. Information will then be provided for registration.
query
you can directly access the official website of China Trademark website. The judgment of the query results needs professional advice from experienced professional trademark agents. You can also entrust to help you to inquire, and give professional advice to the inquiry results directly
note: query is free. There are no identical or similar queries. Information will then be provided for registration.
2. The life of ordinary employees is not like death. They work overtime and earn less than 3000 yuan. The work is the most tiring. There are three proction monitors, one is Li Qide, one is fan Liubu and the other is Langgou.
3. Actually, you know that the extension number of this company is hard to find. It's a real name system. The probability of asking here is very small. Moreover, the problem of confidentiality authority is so difficult that you don't understand? I have a phone, but I won't give it. Sorry
4.
Metso mining machinery (Tianjin) International Trade Co., Ltd. Shanghai branch is a domestic funded branch incorporated on May 13, 2011, with its registered address at 3 / F, 261 Meiyue Road, Pudong New Area
the unified social credit code / registration number of the Shanghai Branch of Metso mining machinery (Tianjin) International Trade Co., Ltd. is 91310115575855712d, and Liang Xiaofeng, the legal person of the company, is currently in business
The business scope of Metso mining machinery (Tianjin) International Trade Co., Ltd. Shanghai branch is: international trade, wholesale, commission agency (except auction), import and export of construction machinery and mining, mineral processing equipment, bulk material conveying equipment; To provide warehousing services in the district on behalf of the customers; Simple processing; Commodity display; High tech proct development and above related consulting services Projects that need to be approved according to law can only be operated after being approved by relevant departmentsview more information and information of Metso mining machinery (Tianjin) International Trade Co., Ltd. Shanghai branch through aiqicha
5. Tianjin meizhuo mining machinery professional crusher headquarters Finland China Tianjin company proces crusher cone liner high manganese steel wear-resistant parts
6. 0 Introction
the working principle of gas-fired infrared radiation heating is: burning natural gas, liquefied natural gas or liquefied petroleum gas (artificial gas can also be used, but the calorific value is low, the amount of harmful substances in combustion procts is more, and the application is less), heating radiation metal tube, plate or ceramic plate, It can proce direct thermal radiation (also known as primary radiation) and secondary radiation and convective heat transfer on the inner surface of enclosure structure and equipment of heating room, so as to create comfortable microclimate conditions for heating area. It can also be used for proction process heating, but it is mainly used for heating, so it is hereinafter referred to as gas radiator heating. Composition of gas radiator: gas burner, radiant tube or plate, reflector, regulation, control and security components
1 gas radiator heating has the advantages of high efficiency and energy saving
if traditional radiators (radiators) are used as heat release equipment in tall buildings, it is difficult to arrange large-span rooms. In some workshops, the wall is full of radiators, and the heating mode mainly relies on natural convection heat release, resulting in large temperature gradient up and down, up to 0.5 ~ 1.0 ℃ / m, which makes the air temperature under the roof as high as 32 ℃. However, the air temperature distribution in the working area where people stay less than 2m is uneven, and in some places it is only 3 ~ 5 ℃. Heating system is not for building and indoor air service, but should be people-oriented, in addition to meeting the requirements of proction technology, to personnel comfort and rece energy consumption as the main goal. If the heating mode of radiator plus heater or centralized air treatment is used, it will not only occupy the building area, but also cause st lifting, affecting health and human health. In some cases, it is prohibited. As for the heating of open and semi open sites, the use of gas radiator has incomparable advantages
the average temperature in the metal tube of gas radiator is 180 ℃～ 550 ℃, procing 3.5 ℃ μ～ ５．５ μ The infrared ray of wavelength passes through the air layer and is absorbed by human body and objects, with remarkable thermal effect. The ground temperature is 4 ℃～ 8 ℃ higher than the ambient air temperature. The ground, wall, object temperature and secondary radiation can make the air temperature distribution in the working area less than 2m even and create a comfortable microclimate. The working area temperature of radiator heating room can be 2 ℃～ 3 ℃ lower than that of convection heating mode, which can meet the same comfort. The temperature gradient of the upper and lower parts of the house is small, the upper air temperature is not high, and the invalid heat loss is reced
when steam or hot water boilers are used for heating, small boilers shall be set η= 70%, the heat loss of heat medium transportation in external network is 5%, and the heat loss of internal network and equipment is 10%
the total efficiency η＝ zero point seven × zero point nine five × 9 ≈ 60%, and gas radiator heating η Up to 90%. Compared with the traditional way, the gas radiator can save 33% ～ 50% energy in one heating period. In addition, it has the following advantages: low air velocity in the room, less st and other harmful substances flying, no noise when working, no freezing, short installation period and so on<
2 the application scope of gas radiator heating
gas radiator can be used for:
1) the working area or working point of the proction workshop (especially when it is applied to the large and open workshop with scattered working points)
2) working area and working point of open-air workplace (with incomparable advantages of other heating methods)
3) civil buildings and open sites where people stay for a short time. For example: station platforms, bus waiting rooms, sports venues, exhibition halls, open or semi open markets, etc
4) heating of buildings and structures in the process of construction
5) process heating for materials and equipment
6) snow melting in open field and semi open field, and roof melting of houses and structures< As pointed out in the article description of code for design of heating, ventilation and air conditioning in China, "at present, there are many new types of gas-fired heating equipment in many developed countries, which have the characteristics of high efficiency, energy saving, comfort and sanitation, and low operation cost. The heating method is especially suitable for buildings with large space. With the development of China's petroleum instry and the development and utilization of oil and gas fields, the application of this heating method is increasing
there are hundreds of projects using gas radiator heating in Russia, including the comprehensive workshop of machinery manufacturing plant in Qiuming oilfield, the largest locomotive maintenance equipment warehouse in Europe located in Moscow Kiev station (see photo 1), aircraft maintenance workshop of international and domestic main routes in fenukovo, etc. Shanghai topbang Electronics Co., Ltd., the exclusive agent of gaz instry de France in China, has used the gas radiator in Tianjin Tropical Botanical Garden, the largest tropical botanical garden in Asia. The botanical garden is located in Xiqing District of Tianjin city, with a building area of 40000 m2 and a height of 10-16m. The total investment is 260 million yuan. It has been completed and equipped with intelligent ventilation, water supply and ventilation Automatic shading and cooling equipment, together with gas radiator, create indoor ecological environment similar to the original environment of tropical plants (see photo 2). In addition, the company also uses gas-fired radiant heating for China Heavy Duty Truck Group Corporation, Tianjin Port Free Trade Zone, China Jinche Group Corporation, Tianjin Zhongbei Instrial Park, Tianjin meizhuo Mining Machinery Co., Ltd., Shanghai donnery and other projects. Proced by eukoima, Italy, represented by AET Schenker (Asia) Co., Ltd. and Chuanhe, Canada
the working principle of gas-fired infrared radiation heating is: burning natural gas, liquefied natural gas or liquefied petroleum gas (artificial gas can also be used, but the calorific value is low, the amount of harmful substances in combustion procts is more, and the application is less), heating radiation metal tube, plate or ceramic plate, It can proce direct thermal radiation (also known as primary radiation) and secondary radiation and convective heat transfer on the inner surface of enclosure structure and equipment of heating room, so as to create comfortable microclimate conditions for heating area. It can also be used for proction process heating, but it is mainly used for heating, so it is hereinafter referred to as gas radiator heating. Composition of gas radiator: gas burner, radiant tube or plate, reflector, regulation, control and security components
1 gas radiator heating has the advantages of high efficiency and energy saving
if traditional radiators (radiators) are used as heat release equipment in tall buildings, it is difficult to arrange large-span rooms. In some workshops, the wall is full of radiators, and the heating mode mainly relies on natural convection heat release, resulting in large temperature gradient up and down, up to 0.5 ~ 1.0 ℃ / m, which makes the air temperature under the roof as high as 32 ℃. However, the air temperature distribution in the working area where people stay less than 2m is uneven, and in some places it is only 3 ~ 5 ℃. Heating system is not for building and indoor air service, but should be people-oriented, in addition to meeting the requirements of proction technology, to personnel comfort and rece energy consumption as the main goal. If the heating mode of radiator plus heater or centralized air treatment is used, it will not only occupy the building area, but also cause st lifting, affecting health and human health. In some cases, it is prohibited. As for the heating of open and semi open sites, the use of gas radiator has incomparable advantages
the average temperature in the metal tube of gas radiator is 180 ℃～ 550 ℃, procing 3.5 ℃ μ～ ５．５ μ The infrared ray of wavelength passes through the air layer and is absorbed by human body and objects, with remarkable thermal effect. The ground temperature is 4 ℃～ 8 ℃ higher than the ambient air temperature. The ground, wall, object temperature and secondary radiation can make the air temperature distribution in the working area less than 2m even and create a comfortable microclimate. The working area temperature of radiator heating room can be 2 ℃～ 3 ℃ lower than that of convection heating mode, which can meet the same comfort. The temperature gradient of the upper and lower parts of the house is small, the upper air temperature is not high, and the invalid heat loss is reced
when steam or hot water boilers are used for heating, small boilers shall be set η= 70%, the heat loss of heat medium transportation in external network is 5%, and the heat loss of internal network and equipment is 10%
the total efficiency η＝ zero point seven × zero point nine five × 9 ≈ 60%, and gas radiator heating η Up to 90%. Compared with the traditional way, the gas radiator can save 33% ～ 50% energy in one heating period. In addition, it has the following advantages: low air velocity in the room, less st and other harmful substances flying, no noise when working, no freezing, short installation period and so on<
2 the application scope of gas radiator heating
gas radiator can be used for:
1) the working area or working point of the proction workshop (especially when it is applied to the large and open workshop with scattered working points)
2) working area and working point of open-air workplace (with incomparable advantages of other heating methods)
3) civil buildings and open sites where people stay for a short time. For example: station platforms, bus waiting rooms, sports venues, exhibition halls, open or semi open markets, etc
4) heating of buildings and structures in the process of construction
5) process heating for materials and equipment
6) snow melting in open field and semi open field, and roof melting of houses and structures< As pointed out in the article description of code for design of heating, ventilation and air conditioning in China, "at present, there are many new types of gas-fired heating equipment in many developed countries, which have the characteristics of high efficiency, energy saving, comfort and sanitation, and low operation cost. The heating method is especially suitable for buildings with large space. With the development of China's petroleum instry and the development and utilization of oil and gas fields, the application of this heating method is increasing
there are hundreds of projects using gas radiator heating in Russia, including the comprehensive workshop of machinery manufacturing plant in Qiuming oilfield, the largest locomotive maintenance equipment warehouse in Europe located in Moscow Kiev station (see photo 1), aircraft maintenance workshop of international and domestic main routes in fenukovo, etc. Shanghai topbang Electronics Co., Ltd., the exclusive agent of gaz instry de France in China, has used the gas radiator in Tianjin Tropical Botanical Garden, the largest tropical botanical garden in Asia. The botanical garden is located in Xiqing District of Tianjin city, with a building area of 40000 m2 and a height of 10-16m. The total investment is 260 million yuan. It has been completed and equipped with intelligent ventilation, water supply and ventilation Automatic shading and cooling equipment, together with gas radiator, create indoor ecological environment similar to the original environment of tropical plants (see photo 2). In addition, the company also uses gas-fired radiant heating for China Heavy Duty Truck Group Corporation, Tianjin Port Free Trade Zone, China Jinche Group Corporation, Tianjin Zhongbei Instrial Park, Tianjin meizhuo Mining Machinery Co., Ltd., Shanghai donnery and other projects. Proced by eukoima, Italy, represented by AET Schenker (Asia) Co., Ltd. and Chuanhe, Canada
7. In addition to reference 2, there are also "jbj10-96 code for design of heating ventilation and air conditioning in machinery factory", "gbj16-87 code for fire protection design of buildings", "GB 50028-9 code for design of town gas", "GB 50316-2000 code for design of instrial metal pipes", "GB 50028-9 code for design of town gas", "GB 50028-9 code for design of town gas", "GB 50026-2000 code for design of instrial metal pipes" Code for construction and acceptance of instrial metal pipelines (GB 50235-97) and hygienic standard for design of instrial enterprises. Referring to the Russian code, this paper supplements and emphasizes some provisions:
1) it is strictly forbidden to install gas radiators in basements and places with inflammable and explosive gases, st and media. Article 3.5.11 of document 2 is a new provision, which stipulates that the exhaust gas of radiator combustion proct is carbon dioxide and water vapor. In crops, vegetables, flower greenhouses and other special occasions, exhaust gas is allowed to be discharged directly into the room. The data of some tall buildings show that the content of CO in the exhaust gas is not more than 0.0199%, and the content of CO2 is not more than 5.4% (which varies with the procts of different countries). Harmful Co & lt; 100mg/kWh，NOx< 150mg / kWh, 10m3 ventilation per kW of installed capacity. When the cold air infiltration of tall buildings causes more than 0.5 times / h of air exchange, the required air exchange of radiator is only 0.02 times / h, which is far less than the cold air infiltration, so it can be considered as meeting the health requirements. H2O in the exhaust gas can humidify the indoor air in winter, and the sensible heat and latent heat of exhaust gas discharged into the room can be fully utilized
2) according to the Russian code for design of gas infrared radiation heating system, when the fire automation system (including smoke alarm, fire signal and fire extinguishing system) in the place with gas radiator fails, the gas supply system shall be automatically shut down; When the gas supply pressure exceeds the rated value of the radiator, the gas supply can be automatically shut down; It shall be able to close the radiator manually and remotely; There should be sensors in the heating place to reflect the air temperature and radiation temperature, so that the radiator can ensure the temperature required for heating; When there are local ventilation and general ventilation systems, the gas radiator heating system should be interlocked with them, and the ventilation system should be started first and then shut down; The gas radiator heating system shall be able to be easily maintained and repaired, and its working capacity shall be inspected at least once a quarter
when the gas-fired radiant heating system is completed and accepted, the technical documents to be prepared are:
① design drawings and instructions of the heating system. There should be heating and ventilation, gas supply, power supply, automation and other contents. There are heating system heat load calculation, radiator number calculation and installation location determination< (2) relevant technical documents of gas radiator
③ list of harmful substances in radiator combustion procts, and the weight concentration of each harmful substance without dilution
④ the measured data of indoor microclimate parameters of buildings, including the vertical and horizontal thermal radiation intensity, and the thermal radiation intensity of staff's head, trunk and foot< (5) system operation and maintenance management manual< (6) instructions on safety technology
gas infrared radiator heating is a new heating technology in the ascendant. With the west to East Gas Transmission and the introction of liquefied natural gas, its application will graally be widely used. At present, there is no report on the proction of domestic gas radiators in China. It should be put on the agenda to compile the instry standard for the manufacture of gas infrared heating radiators in China with reference to the European Union standard and Russian standards
1) it is strictly forbidden to install gas radiators in basements and places with inflammable and explosive gases, st and media. Article 3.5.11 of document 2 is a new provision, which stipulates that the exhaust gas of radiator combustion proct is carbon dioxide and water vapor. In crops, vegetables, flower greenhouses and other special occasions, exhaust gas is allowed to be discharged directly into the room. The data of some tall buildings show that the content of CO in the exhaust gas is not more than 0.0199%, and the content of CO2 is not more than 5.4% (which varies with the procts of different countries). Harmful Co & lt; 100mg/kWh，NOx< 150mg / kWh, 10m3 ventilation per kW of installed capacity. When the cold air infiltration of tall buildings causes more than 0.5 times / h of air exchange, the required air exchange of radiator is only 0.02 times / h, which is far less than the cold air infiltration, so it can be considered as meeting the health requirements. H2O in the exhaust gas can humidify the indoor air in winter, and the sensible heat and latent heat of exhaust gas discharged into the room can be fully utilized
2) according to the Russian code for design of gas infrared radiation heating system, when the fire automation system (including smoke alarm, fire signal and fire extinguishing system) in the place with gas radiator fails, the gas supply system shall be automatically shut down; When the gas supply pressure exceeds the rated value of the radiator, the gas supply can be automatically shut down; It shall be able to close the radiator manually and remotely; There should be sensors in the heating place to reflect the air temperature and radiation temperature, so that the radiator can ensure the temperature required for heating; When there are local ventilation and general ventilation systems, the gas radiator heating system should be interlocked with them, and the ventilation system should be started first and then shut down; The gas radiator heating system shall be able to be easily maintained and repaired, and its working capacity shall be inspected at least once a quarter
when the gas-fired radiant heating system is completed and accepted, the technical documents to be prepared are:
① design drawings and instructions of the heating system. There should be heating and ventilation, gas supply, power supply, automation and other contents. There are heating system heat load calculation, radiator number calculation and installation location determination< (2) relevant technical documents of gas radiator
③ list of harmful substances in radiator combustion procts, and the weight concentration of each harmful substance without dilution
④ the measured data of indoor microclimate parameters of buildings, including the vertical and horizontal thermal radiation intensity, and the thermal radiation intensity of staff's head, trunk and foot< (5) system operation and maintenance management manual< (6) instructions on safety technology
gas infrared radiator heating is a new heating technology in the ascendant. With the west to East Gas Transmission and the introction of liquefied natural gas, its application will graally be widely used. At present, there is no report on the proction of domestic gas radiators in China. It should be put on the agenda to compile the instry standard for the manufacture of gas infrared heating radiators in China with reference to the European Union standard and Russian standards
Hot content