查询词典 gas-proof

A process for continuously preparing nm carbon tubes on fluidized bed include such steps as carrying the transition metal oxide catalyst on carrier, putting it in catalyst-activating reactor, reduction reaction by introducing the gas mixture of nitrogen gas and hydrogen or CO gas to the reactor, loading the catalyst into fluidized bed, and introducing mixed reaction gas to its to grow said nm carbon tubes on the catalyst by chemical gas-phase deposition.

本发明涉及一种流化床连续化制备碳纳米管的方法，首先将过渡金属的氧化物催化剂载于担体上，然后将其放在催化剂活化反应器内，通入流动的氢气或一氧化碳与氮气的混合气体进行还原反应，最后将催化剂送至流化床中，通入反应混合气体，流化床的下部则得到碳纳米管。本发明的方法和装置，在流化床中经过化学气相沉积，在催化剂载体上生长出碳纳米管。

In applying high concentration burning technique to improving burning efficiency for pulverized coal burner, for studying the effect of solid flows of different concentration on burning, Euler mathematical model is set up using gas-solid two phase flow theory. The paper describes the low concentration pulverized coal in horizontal primary air pipe. The relationship between the velocity and concentration of gas phase and that of solid phase, and the effect of gas flow velocity on gas-solid two-phase flows, is arrived through calculating the flow field. Reasonable gas flow velocity is proposed.

在应用高浓度燃烧技术提高煤粉炉的燃烧效率时，为了研究不同浓度固相流动对燃烧的影响，应用气固两相流理论建立Euler数学模型对一次风水平管道中低浓度的煤粉颗粒进行了描述，通过求解流场，得到了管内气相和固相的速度和浓度的分布关系，及其气体流速对气固两相流动的影响，并提出合理气流速度。

Products covered by the company dewpoint meter / dew point transmitter, portable / fixed toxic gas detector, combustible gas detector, gas detector-one, ambient air quality monitoring / surveillance systems, a variety of toxic and hazardous gas monitoring and analytical instruments, sensors and anemometer wind speed, wind direction and wind direction sensors and instruments, gas analyzers / smoke detector and so on.

公司产品涵盖了露点仪/露点变送器、便携式/固定式有毒气体检测仪、可燃性气体检测仪、五合一气体检测仪、环境空气质量监测仪/监测系统、各种有毒有害气体的监测及分析仪器、风速传感器及风速仪、风向传感器及风向仪、气体分析仪/烟气检测仪等。

Then direct against the concrete conditions of the oil field of Xinjiang, influencing the important factor that the oil gas operated the cost in the oil field of Xinjiang to be analyzed at first, then analyzing in the face of the domestic and international oil field before combining provide the oil field oil gas in Xinjiang and operate concrete method and measure that the cost controls, and combine the change law of petroleum gas cost in the past 10 years of big company of foreign petroleum Oil field Company oil gas cost control what time does it get helpful enlightenment out of about Xinjiang, providing the incentive mechanism of operating the cost of oil gas of oil field company of Xinjiang to design finally.

然后针对新疆油田的具体情况，首先对影响新疆油阳油气操作成本的重要因素进行了分析，然后结合前面对国内外油田的分析给出新疆油田油气操作成本控制的具体方法和措施，并结合国外石油大公司在近十年的石油天然气成本的变化规律对新疆油田公司油气成本控制提出了几点有益的启示，最后给出了新疆油田公司油气操作成本的激励机制设计。

Currently committed to the development of the project are: 1, and highly efficient energy-saving wall, floor-small gas heating, hot water shower boiler 2, a heat recovery function of refrigeration, heating gas integrated air-conditioning unit 3, light Hydrocarbon gas technology 4, four seasons with the application of solar gas Technology 5, refrigeration - Gas - Solar - floor heating system optimization of energy-saving technology 6, the vacuum system superconducting Hot technology Over the years, we in a "customer first" principle, the user would like to think, urgent needs of users and constant innovation, and actively explore.

目前致力开发的项目有： 1、高效节能壁挂、落地式小型燃气采暖、淋浴热水锅炉 2、具有热回收功能的制冷、采暖一体化燃气空调机组 3、轻烃燃气技术 4、可四季应用的太阳能与沼气配套技术 5、制冷—燃气—太阳能—地板采暖的系统优化节能技术 6、真空超导制热技术多年以来，我们本着&用户至上&的原则，想用户之所想，急用户之所需，不断创新，积极探索。

Ours products cover gas control systems for wall-hung boilers, instant water heaters, water tank heaters, gas-fired washing machines, fireplaces, furnaces, gas heaters, gas ovens and stoves. CNE also provides direct spark control modules for industrial heating equipment and different kinds of AC/DC electronic igniters. CNE has established a strong reputation in the Chinese gas industry.

我国燃气控制系统产品涵盖墙红锅炉、速食热水器水箱热水器、燃气洗衣机、火炉、火炉、燃气热水器、燃气烘炉及stoves.cne控制单元还提供直接星火工业加热设备及各种交流/直流电子igniters.cne已在中国建立了强大的声望天然气工业。

On the one hand, we analysis fuel supply strategy, and design the gas supply system; On the other hand, we focused on the design of the gas supply system for some major installations, such as: the cylinder, the cylinder valve, the shuted valve, filling gas Valves, gas pressure regulator, heating regulator, etc., we also design the gas supply system layout and installation under the bus frame.

一方面分析了电控天然气发动机燃料供给策略，设计了天然气供给系统；另一方面重点设计了天然气供给系统的一些主要专用装置，如：气瓶、气瓶阀、手动关闭阀、充气阀、燃气压力调节器、加温器等，对其它所需部件按国家标准进行了选用；同时还根据公交车车架，对天然气供给系统布置与安装进行了分析与设计。

Flow regime and void fraction are important parameter in gas-liquid two-phase flow, the relation of differential pressure signal coming from Venturi tube and the flow regime of gas-liquid two-phase flow was studied in this paper, A kind of flow regime identification method of gas-liquid two-phase flow based on Hilbert-Huang Transform and fuzzy inference was put forward, the familiar flow regime identification of gas-oil and gas-water two-phase flow was achieved.

两相流动是一个十分复杂的过程，参数较多，检测相当困难。流型、空隙率是气液两相流中非常重要的参数，而且测量比较困难，还影响两相流其它参数的测量。

This article indicates that when the average temperature of gas in gas-insulated electric equipment is some greater than the temperature of gas density relay then the gas density relay can't reflex the gas density correctly too and gives a positive error.

本文指出，当电气设备内气体平均温度高于密度继电器温度一定程度时，气体密度继电器也不能正确反映电气设备内的气体密度，而出现正误差。

Its working principle is introduced here: when a gas or powder starts a flame or explosion, the ultraviolet sensor will acquire the signal and sent it to the controller to produce the trigger voltage, and then the explosive suppressor will release a great number of gas promptly spraying dry powder extinguishing agents, which thereby form extinguishing agent smoke and effectively extinguish explosion flame. It is rapid and of strong antiinterference ability, high reliability and can be fixed easily. It is capable of effectively suppressing natural gas explosion in the simulative gas explosion test. It can be applied in CNG stations or other site where has explosive and combustible gas whereby to enhance the overall accident control ability.

当发生气体燃烧、爆炸时，紫外传感器接收火焰信号，传送至控制器，控制器产生触发电压，使抑爆器的产气剂释放出大量气体，驱动快速喷撒出干粉灭火剂，形成足够浓度的灭火剂粉雾体，有效扑灭爆炸火焰，具有动作速度快、抗干扰能力强、可靠性高、安装使用方便等优点，在天然气模拟爆炸试验中能有效抑制天然气爆炸，可用于CNG加气站或其他燃烧爆炸性气体场所，提高其整体防灾抗灾能力。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐