GB/T 16803-2018Equipment of heating ,ventilating, air conditioning and air cleaning terminology (English PDF)

2.1 General terminology

2.1.1 Radiator standard heat dissipation standardheatingcapacityofradiator Radiator heat dissipation under standard test conditions.

2.1.2 Electric heating radiator rated heat dissipation ratedheatingcapacityofelectricheatingradiator At the rated voltage, when the electric heating radiator is working at full load, the input electric power of the radiator.

2.1.3 Heater rated heat supply ratedheatingcapacityofunitheater The heat supplied by the heater to the air under rated conditions.

2.1.4 Working pressure workingpressure Ensure the maximum allowable pressure when the equipment is working properly.

2.1.5 Metal heat intensity thermaloutputperweightpertemperaturedifferenceofradiator Heat sink The heat dissipation per unit mass of metal per unit of excess temperature under standard test conditions.

Note. The unit is W/(kg·K).

2.1.6 Radiator heating radiatorheating A heating method that uses a radiator to transfer heat to the room.

2.1.7 Hot air heating warm-airheating A convection heating method that uses hot air as a heating medium.

2.1.8 Radiant heating radiantheating Radiation heat transfer-based heating.

2.1.9 Central heating The heat source and the heat dissipating device are separately arranged, and are connected by a heat medium pipe, and the heat source supplies heat to a plurality of heat inlets or heat users. the way.

2.1.10 Decentralized heating The heat user supplies the heat to the room by a self-provided small heat source, and the heat source and the heat sink device can be separately arranged or integrated.

2.2 Heating end

2.2.1 Radiator radiator A device that transfers heat to a heating room in a convective and radiative manner.

2.2.1.1 Gray cast iron column radiator castironcolumn-typeradiator A radiator made of gray cast iron and consisting of a heat sink with hollow columns.

2.2.1.2 Gray cast iron wing radiator castironwing-typeradiator It is made of gray cast iron and has a finned radiator outside the tube. Including column airfoil, long wing, round wing, square wing and so on.

2.2.1.3 Steel tube radiator steeltuberadiator A heat sink made of steel and consisting of fins with hollow columns.

2.2.1.4 Steel plate radiator radiatorpanelradiator A heat sink welded by a steel metal plate.

2.2.1.5 Steel flat tube radiator steelflattube-typeradiator A radiator made of a steel flat tube welded to a heat sink.

2.2.1.6 String radiator finnedtuberadiator A heat sink made of metal tubes and sheets.

2.2.1.7 Tube radiator radiatorradiator A grid-type heat sink is welded with a plurality of metal tubes.

2.2.1.8 Copper-aluminum composite column airfoil radiator copper-aluminumcolumn-wingtyperadiator After the copper pipe column and the aluminum wing pipe are expanded and combined, the composite heat sink formed by welding is combined with the upper and lower copper pipe headers.

2.2.1.9 Steel-aluminum composite radiator steel-aluminumcompoundradiator After the steel pipe column and the aluminum wing pipe are expanded and combined, and then combined with the upper and lower steel pipe joint box, the composite heat sink is welded and formed.

2.2.1.10 Die-cast aluminum radiator die-castingaluminumaloyradiator A heat sink made of aluminum alloy and processed by die-casting, including integral, combined and composite.

2.2.1.11 Aluminum column airfoil radiator aluminumcolumn-wingtyperadiator A heat sink formed by a combination of an aluminum wing pipe column and an upper and lower aluminum header.

2.2.1.12 Copper tube convection radiator coppertubeconvector A natural convection heat sink with a copper tube aluminum string as a heat dissipating component.

2.2.1.13 Bathroom radiator radiatorradiator Used in toilets, bathrooms, kitchens, etc., with decorative and other specific auxiliary functions.

2.3 Household heat source

2.3.1 Household air source heat pump hospitalairsourceheatpump An air source heat pump hot and cold water unit or an air source multi-connected heat pump hot water unit with a single nominal cooling capacity of not more than 50 kW is used as The heat source is a device that generates hot water through a refrigerant-water heat exchange device and provides a heat source for a heating end facility of a single user and domestic hot water.

2.3.2 Household gas stove householdgasboiler Using gas as an energy source to ensure that one or several households use heat for daily life, and automatically control their combustion to achieve heating and domestic hot water. appliance.

2.3.2.1 Gas heating water heater gas-firedheatingandhotwatercombi-boiler With gas as energy source, the rated heat input is not more than 70kW, the system working pressure is not more than 0.3MPa, and the water temperature during operation is not more than 95 ° C, heating or hot water dual-purpose or single-heating appliances with atmospheric burners or fan-assisted burners or full premixed burners.

2.3.2.2 Condensing gas heating bath dual-purpose furnace condensinggas-firedheatingandhotwatercombi-boiler With gas as energy source, the rated heat input is not more than 70kW, the system working pressure is not more than 0.3MPa, and the water temperature during operation is not more than At 95 °C, using a fan-assisted atmospheric burner or a fully premixed burner, the water vapor in the combustion flue gas is partially condensed, and the condensation process is released. It is a heating and hot water dual-purpose appliance that is used effectively.

2.3.3 Solar collector solarcolector A device that absorbs solar radiation and transfers the generated thermal energy to a heat transfer medium.

2.3.3.1 Flat type solar collector flatplatesolarcolector A non-concentrating solar collector having a substantially flat plate shape on the surface of the absorber.

2.3.3.2 Concentrating solar collector concentratingsolarcolector The use of reflectors, lenses or other optics to redirect the solar radiation entering the daylighting port and concentrate it on the solar energy on the heat sink Collector.

2.3.3.3 Vacuum tube type solar collector evacuatedtubesolarcolector A solar collector that uses a transparent tube (usually a glass tube) and has a vacuum space between the tube wall and the heat absorbing body.

2.3.3.4 Solar air working fluid collector airheatingsolarcolector The heat transfer medium is an air solar collector.

2.3.3.5 Solar liquid working fluid collector liquidheatingsolarcolector The heat transfer medium is a liquid solar collector.

2.4 Heating components

2.4.1 Heat exchanger heatexchanger A device in which a medium having a different temperature exchanges heat, which is also called a heat exchanger.

2.4.1.1 Water-water heat exchanger water-to-watertypeheatexchanger The heat medium for heating and the medium to be heated are both heat exchangers for water.

2.4.1.2 Steam-water heat exchanger steam-to-watertypeheatexchanger The heat medium for heating is steam, and the medium to be heated is water heat exchanger.

2.4.1.3 Surface heat exchanger surface-typeheatexchanger A heat exchanger in which heated water is not in direct contact with the heat medium, and heat is exchanged through the metal surface. Including shell and tube, sleeve type, plate type, screw Rotary plate heat exchangers, etc., also known as indirect heat exchangers.

2.4.1.4 Steam-water hybrid heat exchanger steam-watermixedheatexchanger A heat exchanger that allows steam (heat medium) and water (heated medium) to be directly contacted and mixed to achieve heat exchange. Including water spray, nozzle type Heater, etc.

2.4.2 Heat exchanger unit heatexchanger It consists of heat exchanger, water pump, filter, valve, instrument, control system and auxiliary equipment to realize the overall exchange of heat exchange between fluids. Thermal device.

2.4.3 Water mixing device water-watermixingunit In a hot water system, a device that mixes the supply and return water to achieve the required parameters.

2.4.4 System attachment systemfittings Auxiliary equipment for heating systems.

2.4.4.1 Expansion tank expansiontank A water tank that acts to compensate for the expansion and contraction of the water volume in the hot water system.

2.4.4.2 Divider manifold In the heating water system, the water supply and return main pipe and the branch pipes are connected, and the main body of the water separator and the main body of the water collector are used for centralized distribution and A device that collects the water volume of each branch pipe.

2.4.4.3 Water separator supplywaterdistributionheader In the heating water system, a water distribution device having a large cross section for distributing the amount of water to each branch system is concentrated.

2.4.4.4 Water collector returnwatercolectingheader In the heating water system, a water collecting device having a large cross section for collecting the return water of each branch system.

2.4.4.5 Manual exhaust valve manualvent A device that is installed on the radiator and manually removes air.

2.4.4.6 Automatic exhaust valve automaticvent A device that is installed on a pipe or radiator to automatically remove air.

2.5 Heat metering device

2.5.1 Heat meter heatmeter A meter used to measure the release or absorption of heat from a heat medium through a heat exchange system, a heat transfer system, or a residential indoor heating system.

2.5.2 Integral heat meter completeheatmeter A heat meter consisting of flow sensors, calculators, and paired temperature sensors that are non-decomposable.

2.5.3 Combined heat meter combinedheatmeter A heat meter that combines flow sensors, calculators, and paired temperature sensors.

2.5.4 Heat distribution table heatcostalocator The device installed on the radiator for indirect reflection of heat dissipation needs to be used in conjunction with the heat meter of the trade settlement point.

2.5.5 Evaporative heat distribution table heatcostalocatorsbasedontheevaporationprinciple The device for measuring the amount of heat dissipated by the radiator under test in a specific time according to the amount of evaporation of the measured liquid in the liquid pipe.

Note. The evaporation of the measured liquid is an approximation of the average temperature and time integral of the heat sink of the tested radiator.

2.5.6 Electronic heat distribution table heatcostalocatorswithelectricalenergysupply A device that uses a temperature sensor to measure the characteristic temperature of the radiator and the corresponding heating time integral.

Note. The displayed value is the approximate value of the temperature and time integral of the measured characteristic of the heat sink, or the difference between the average temperature of the surface of the heat sink and the temperature of the room. An approximation of the time integral.

3 ventilation equipment

3.1 General terms

3.1.1 Rated condition The standard specifies test conditions for calibrating the capabilities of ventilation and air conditioning equipment.

3.1.2 Rated air volume ratedairflowrate The volumetric flow rate of air drawn or discharged by the unit per unit time under rated conditions.

3.1.3 Rated wind pressure ratedairpressure The total pressure difference between the inlet and outlet of the equipment at rated air volume.

3.1.4 Rated speed ratedrotatingspeed The number of revolutions that the equipment rotor has per unit time at rated operating conditions.

3.1.5 Equipment resistance totalpressureloss Total pressure loss when air flows through the unit.

3.1.6 Local resistance coefficient locallosscoefficient The ratio of the pressure loss of the venting component to the corresponding dynamic pressure.

3.1.7 Equipment noise equipmentnoise The sound pressure level value or sound power level value measured by the equipment according to the specified method under rated working conditions.

3.1.8 Rated input power ratedpowerinput The electrical power input during operation of the equipment under rated conditions.

3.1.9 Exit wind speed outletairvelocity The average wind speed at the air outlet of the equipment.

3.1.10 Control wind speed capturevelocity The wind speed, also known as the trapping speed, at the control point required to draw contaminants into the enclosure.

3.1.11 Settling velocity The maximum speed that dust particles in still air can reach when gravity drops.

3.1.12 Suspension speed suspendedvelocity The minimum updraft velocity at which the dust particles are in suspension.

3.1.13 Cover wind speed facevelocity The average wind speed of the section at the hood outlet.

3.1.14 Filtration rate filtrationvelocity The amount of air that passes through the unit time and unit filtration area.