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单词 boiler
释义

boiler


boilerwater-tube boiler

boil·er

B0371000 (boi′lər)n.1. An enclosed vessel in which water is heated and circulated, either as hot water or as steam, for heating or power.2. A container, such as a kettle, for boiling liquids.3. A storage tank for hot water.

boiler

(ˈbɔɪlə) n1. (General Engineering) a closed vessel or arrangement of enclosed tubes in which water is heated to supply steam to drive an engine or turbine or provide heat2. a domestic device burning solid fuel, gas, or oil, to provide hot water, esp for central heating3. a large tub for boiling laundry4. (Cookery) a tough old chicken for cooking by boiling

boil•er

(ˈbɔɪ lər)

n. 1. a closed vessel in which water is heated to make steam for powering turbines, supplying heat, etc. 2. a vessel, as a kettle, for boiling or heating. 3. a tank in which water is heated and stored, as for supplying hot water. [1530–40] boil′er•less, adj.
Thesaurus
Noun1.boiler - sealed vessel where water is converted to steamboiler - sealed vessel where water is converted to steamsteam boilerauxiliary boiler, donkey boiler - (nautical) an extra boiler (as a ship's boiler that is used while the ship is in port)boilerplate - thick plate iron used in the production of boilersheating plant, heating system, heating, heat - utility to warm a building; "the heating system wasn't working"; "they have radiant heating"steam engine - external-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylindersteam whistle - a whistle in which the sound is produced by steam; usually attached to a steam boilervessel - an object used as a container (especially for liquids)
2.boiler - a metal pot for stewing or boilingboiler - a metal pot for stewing or boiling; usually has a lidkettlepot - metal or earthenware cooking vessel that is usually round and deep; often has a handle and lidteakettle - kettle for boiling water to make tea
Translations
锅炉

boil1

(boil) verb1. to turn rapidly from liquid to vapour when heated. I'm boiling the water; The water's boiling. 煮沸 煮沸2. to cook by boiling in water etc. I've boiled the potatoes. 在沸水中煮 在沸水中煮ˈboiler noun a vessel in which water is heated or steam is produced. 鍋爐 锅炉ˈboiling-point noun the temperature at which something boils. 沸點 沸点boil down to to amount to; to indicate as a final analysis or judgement. It all boils down to money; What it boils down to is that you have to make a choice between family and career. 等於是，歸結為 归结为boil over to boil and overflow. The pan of water boiled over and spilt on the floor. 沸騰溢出 沸腾溢出

boiler

→ 锅炉zhCN

boiler


potboiler

A piece of creative work, especially a book, created solely for quick financial gain by appealing to widespread, popular opinions and taste, as opposed to striving for any artistic integrity or merit. She's been able to crank out two to three potboilers a year, which has given her the financial freedom to pursue her true passion—sculpting. When I'm stretched out on the beach, the only thing I have the patience to read is a trashy potboiler that doesn't require any emotional investment on my part.

pot boiler

n. a book or other literary work of no value except for the money it earns. I can write one pot boiler every six months or so. See also: boiler, pot

boiler


boiler,

device for generating steam. It consists of two principal parts: the furnace, which provides heat, usually by burning a fuel, and the boiler proper, a device in which the heat changes water into steam. A steam engine is driven by steam generated under pressure in a boiler. The amount of steam that can be generated per hour depends upon the rate of combustion of the fuel in the furnace and upon the efficiency of heat transfer to the boiler proper. Since the rate of combustion of the fuel in a furnace is largely dependent upon the quantity of air available, i.e., upon the draft, a sufficient supply of air is an important consideration in boiler construction. In some large installations the incoming air is preheated by the waste heat of the flue gases, and in order to increase the speed of combustion a forced draft (air at higher than atmospheric pressure) is often used. Two types of boilers are most common—fire-tube boilers, containing long steel tubes through which the hot gases from the furnace pass and around which the water to be changed to steam circulates, and water-tube boilers, in which the conditions are reversed. Water is changed to steam in these continuous circuits and also is super-heated in transit. This additional heating of the steam increases the efficiency of the power-generating cycle. The safety valvesafety valve,
device attached to a boiler or other vessel for automatically relieving the pressure of steam before it becomes great enough to cause bursting. The common spring-loaded type is held closed by a spring designed to open the valve when the internal pressure reaches a
..... Click the link for more information.  is used to prevent explosions by releasing steam if the pressure becomes too great. The construction of boilers in the United States is governed by the American Society of Mechanical Engineers' Boiler Construction Code. Progress in boiler design and performance have been governed by the continuous development of improved materials.

Boiler

A system used to heat water for hydronic heating. Most boilers are gas-fired or oil-fired, although some are electric or wood-fired; a boiler can also heat water for domestic uses through a tankless coil or an indirect water heater. In most boilers, the fluid is water in the form of liquid or steam.

Boiler

 

a device for boiling water for coffee, tea, soup, and the like. The continuously operating boilers are the most common; from these, boiling water is supplied automatically and prepared continuously. Periodic action boilers (boilers that must be filled) are also produced. The water in the boiler is heated by an electric heating element, by steam, or by the combustion of gas or solid fuel. Productivity runs up to 180 liters per hr, and the boiling time is 15–20 min.

A submersible boiler is a spiral tubular electric heating element.

boiler

[′bȯil·ər] (mechanical engineering) A water heater for generating steam.

Boiler

A pressurized system in which water is vaporized to steam, the desired end product, by heat transferred from a source of higher temperature, usually the products of combustion from burning fuels. Steam thus generated may be used directly as a heating medium, or as the working fluid in a prime mover to convert thermal energy to mechanical work, which in turn may be converted to electrical energy. Although other fluids are sometimes used for these purposes, water is by far the most common because of its economy and suitable thermodynamic characteristics.

The physical sizes of boilers range from small portable or shop-assembled units to installations comparable to a multistory 200-ft-high (60-m) building equipped, typically, with a furnace which can burn coal at a rate of 6 tons/min (90 kg/s). Boilers operate at positive pressures and offer the hazardous potential of explosions. Pressure parts must be strong enough to withstand the generated steam pressure and must be maintained at acceptable temperatures, by transfer of heat to the fluid, to prevent loss of strength from overheating or destructive oxidation of the construction materials.

The overall functioning of steam-generating equipment is governed by thermodynamic properties of the working fluid. By the simple addition of heat to water in a closed vessel, vapor is formed which has greater specific volume than the liquid, and can develop an increase of pressure to the critical value of 3208 psia (22.1 megapascals absolute pressure). If the generated steam is discharged at a controlled rate, commensurate with the rate of heat addition, the pressure in the vessel can be maintained at any desired value, and thus be held within the limits of safety of the construction. See Steam

Addition of heat to steam, after its generation, is accompanied by increase of temperature above the saturation value. The higher heat content, or enthalpy, of superheated steam permits it to develop a higher percentage of useful work by expansion through the prime mover, with a resultant gain in efficiency of the power-generating cycle.

If the steam-generating system is maintained at pressures above the critical, by means of a high-pressure feedwater pump, water is converted to a vapor phase of high density equal to that of the water, without the formation of bubbles. Further heat addition causes superheating, with corresponding increase in temperature and enthalpy. The most advanced developments in steam-generating equipment have led to units operating above critical pressure, for example, 3600–5000 psi (25–34 MPa). Superheated steam temperature has advanced from 500 ± °F (260 ± °C) to the present practical limits of 1050–1100°F (566–593°C). See Marine engineering, Nuclear power, Steam-generating unit

boiler

A closed vessel in which a liquid is heated or vaporized by the direct application of heat to the outside of the vessel.

boiler

a closed vessel or arrangement of enclosed tubes in which water is heated to supply steam to drive an engine or turbine or provide heat

BOILER


Balloon Occlusive Intravascular Lysis Enhanced Recanalization Strategy. A trial that assessed selective intravascular thrombolysis by direct lytic infusion through the central lumen of an inflated balloon, which was reported to be effective
See BLR
See BLR

boiler


Related to boiler: boiler room, boiler efficiency
  • noun

Synonyms for boiler

noun sealed vessel where water is converted to steam

Synonyms

  • steam boiler

Related Words

  • auxiliary boiler
  • donkey boiler
  • boilerplate
  • heating plant
  • heating system
  • heating
  • heat
  • steam engine
  • steam whistle
  • vessel

noun a metal pot for stewing or boiling

Synonyms

  • kettle

Related Words

  • pot
  • teakettle
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更新时间：2025/1/31 7:34:22