This paper presents the situation of application and effect of frequency-converting technique in unit heater system.
本文介绍了变频调速技术在供暖系统补水改造上的应用及改造效果分析。
Briefly introduces Present heating manners and their existent problems in domestic large workshops, as well as the application effectiveness of downward discharge unit heater.
简要介绍目前国内高大厂房常用采暖方式和存在问题，以及采用下送射流式暖风机的效果。
The APU fuel system consist of a fuel valve, control unit, solenoid valve, filter, heater and control valve.
APU燃油系统包括一个燃油活门、控制组件、电磁活门油滤、加热器及控制活门。
The emphases of the structure characteristics of the motor shell and formation for heater unit are analyzed.
介绍了暖风机电机机壳的结构特点及成形的重点，分析了成形工艺及模具设计要点。
This unit mainly supplies fuel gas for the equipment like in-plant boiler house heater in dehydration unit main combustion furnace in sour gas treatment unit tail gas incinerator and flare stack etc.
本单元主要为厂内锅炉房、脱水装置加热炉、酸气处理装置主燃烧炉、尾气灼烧炉以及放空火炬等燃气设备提供燃料气。
The emphases of the structure characteristics of the motor shell and formation for heater unit are analyzed. The key point of forming process and mould design is further described.
介绍了暖风机电机机壳的结构特点及成形的重点，分析了成形工艺及模具设计要点。
The hot plate feeding unit is heated by heater and controlled by PLC and thermocouples.
热板由发热管加热，并由PLC及热电偶控温。
Heating device: Electric heater unit and hot air circling type to dehumidification.
加热装置：电加热装置和热风循环进行除湿。
Evaluating exactly and fast heat economy of unit caused by heater terminal temperature difference is significant meaning for the design, operation and repair of thermodynamic system.
准确而快速地评价各级加热器端差的运行热经济性，对热力系统的设计、运行和检修具有十分重要的意义。
The construction, performance and the working principle of VH vacuum heating water heater unit are discussed. The applications of the unit are also introduced.
阐述了VH真空热水机组的工作原理、结构组成和性能特点，介绍了该机组在供热、采暖系统中的应用。
The work of on-line analysis system of the operation state of each heater in steam unit include: (1) compile data collection procedure with DCS system;
凝汽机组各加热器运行状念在线分析系统开发的主要工作包括：（1）编写与DCS系统的数据接口程序；
This paper analyzed the trip cause of high pressure heater 3 of unit 3, showed the problems existed and pointed out improving suggestions.
对3号机组3号高压加热器解列原因进行了分析，指出了存在的问题，提出了改进建议。
Experimental analysis and study of the flue gas condensation unit is set or not on the catalytic combustion heater thermal efficiency.
通过实验分析和研究了烟气冷凝装置设置与否对催化燃烧热水炉热效率的影响。
Our most popular model incorporates the same basic unit as the basic water heater, plus pumping stations for recirculating hot water to the customer's holding tank.
该公司最受欢迎的型号包含基本的装置：水加热器，再配以循环泵将热水输送至储水箱。
A solar water heater system is composed of vacuum solar energy absorber, electrically aided heater and water-saving antifreezing unit.
一种太阳能热水器系统装置，它由真空太阳能吸收器、电辅助加热装置、节水防冻装置构成。
The three-way construction of the heater unit guarantees high thermal efficiency.
加热器有三个通道，这种造型保证了良好的热效应。
Two revampings of air preheater of fired heater in atmospheric-vacuum distillation unit of a refinery was introduced.
介绍对某炼油厂常减压蒸馏装置加热炉空气预热系统的两次改造情况。
The results indicated:decreasing in heater terminal temperature difference could improve unit economy. Whereas heater stopping or leakage would have disadvantage on economy.
结果表明加热器端差减少 ，机组经济性提高 ，而加热器停用或泄漏都将对机组经济性产生不利影响。
Analysis and study for how to uniformly distribute the two - phase flow to the heater inlet in hydrocracking unit is done in the article.
对炼油装置中两相流介质进加热炉如何均匀分配的问题进行了分析和探讨。
Taking an introduced 300mw unit as an example, some reasons for adopting medium-pressure heater and some advantage of feed-water medium-pressure heating system have been described in the paper.
以引进型300 MW机组为例，介绍了采用中压加热器的主要原因及给水中压加热系统的优点，并对中压加热器、给水系统等提出了设计建议。
The fracture of blind plate bolts on a coal gas heater of 350 MW gas turbine unit were systematically characterized and analyzed by a series of macroscopic and microscopic analysis methods.
采用宏观和微观分析法对350MW燃气轮机组煤气加热器盲板螺栓断裂进行了系统的表征分析。
The energysaving effect analysis of replacing condensate pump by drain pump of low pressure heater at starting and shutting process of unit;
阐述了低压加热器疏水泵平衡盘磨损的问题，在设备现状基础上进行了理论分析，得出了平衡盘磨损的理论依据。
The vehicle also includes a heater core in fluid communication with the engine, power storage unit and vehicle's cabin.
车辆还包括与发动机、电力存储单元和车辆车厢流体连通的加热器核心。
In that way, minimum heat loss is achieved. The construction of the heater unit guarantees it a long life span, and guarantees that the thermal transfer medium will be usable for a long time.
由此达到极低的热损耗，加热器的结构设计新颖，使得加热器的寿命延长，载热介质也能长时间使用。
The utility model discloses a dual-two-stage-heat pipe solar water heater comprising a heat collection unit (4), a heat transfer unit and a water tank (3).
本实用新型公开了一种双二级热管式太阳能热水器，包括集热单元（4）、传热单元以及水箱（3）。
With cold starting devices, such as inlet pre-heater, optional fuel heater and coolant heater, the unit has solved the difficult starting problem under low temperature and high altitude areas.
机组装有进气预热器，可选装燃油加热器和冷却液加热器等冷启动装置，解决机组在低温、高海拔地区的发动机起动难问题。
The article based on fabrication process of the pre-heater which is the equipment of hydrogen manufacturing unit, and the forming of Cr-Mo steel coil and welding gasket was analyzed.
通过制氢装置中的设备——原料预热器的制作，介绍了铬钼钢螺旋盘管和焊接垫片的成型及焊接、无损检测等工艺过程，实现了此类产品的国产化，并为类似产品的制造提供了借鉴。
The thermal transfer medium is delivered to the circuit by means of a circulation pump via the heater unit and through the consumer units.
载热介质由循环泵传送，通过加热器再到消耗器进行循环。
The thermal transfer medium is delivered to the circuit by means of a circulation pump via the heater unit and through the consumer units.
载热介质由循环泵传送，通过加热器再到消耗器进行循环。
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