SB/T 10345.1: Evolution and historical versions
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Basic data | Standard ID | SB/T 10345.1-2012 (SB/T10345.1-2012) | | Description (Translated English) | Refrigerating systems and heat pumps. Safety and environmental requirements. Part 1: Basic requirements, definitions and classification | | Sector / Industry | Domestic Trade Industry Standard (Recommended) | | Classification of Chinese Standard | J73 | | Classification of International Standard | 27.080; 27.200 | | Word Count Estimation | 46,464 | | Older Standard (superseded by this standard) | SB/T 10345.1-2001 | | Quoted Standard | GB 9237; GB/T 18517; ISO 817; ISO 12100; GB/T 24040 | | Adopted Standard | EN 378-1-2008, NEQ | | Regulation (derived from) | ?Ministry of Commerce Announcement 2012 No.47; Industry Standard Filing Announcement 2012 No.9 (Total No.153) | | Issuing agency(ies) | Ministry of Commerce of the People's Republic of China | | Summary | This standard specifies the safety requirements for the following cases of persons and property (not including storage of cargo). And local and global environmental requirements: a) various sizes fixed or mobile refrigeration systems, including heat pumps | SB/T 10345.1-2012: Refrigerating systems and heat pumps. Safety and environmental requirements. Part 1: Basic requirements, definitions and classification
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Refrigerating systems and heat pumps. Safety and environmental requirements. Part 1. Basic requirements, definitions and classification
ICS 27.080; 27.200
J73
Record number. 37191-2012
People's Republic of China domestic trade industry standard
Replacing SB/T 10345.1-2001
Refrigeration systems and heat pump safety and environmental requirements
Part 1. Basic requirements, definitions and classification
Published on.2012-08-01
2012-11-01 implementation
Published by the Ministry of Commerce
Content
Foreword I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Classification 10
Appendix A (informative) Total Equivalent Warming Effect (TEWI) 16
Appendix B (Normative) Refrigerant Charge Limit 18
Appendix C (informative) Personal protection of personnel in cold rooms 28
Appendix D (Normative) Safety classification and other information for refrigerants 29
Appendix E (informative) Safety Grouping of Refrigerants 35
Appendix F (Normative) Special requirements for ice rinks 40
Reference 41
Foreword
This standard uses the redrafting method, refer to the European Committee for Standardization (CEN) Technical Committee 182 (TC182) (referred to as CEN/
TC182) EN378 "Safety and Environmental Requirements for Refrigeration Systems and Heat Pumps", prepared in accordance with EN378-1.2008
Degree is not equivalent.
SB/T 10345 “Safety and Environmental Requirements for Refrigeration Systems and Heat Pumps” is divided into four sections.
--- Part 1. Basic requirements, definitions and classifications;
--- Part 2. Design, construction, testing, marking and preparation;
--- Part 3. Installation location and personal protection;
--- Part 4. Operation, maintenance, overhaul and recycling.
This standard covers the safe operation and environmental protection of the personal and property related to the refrigeration system and heat pump, especially to prevent the diffusion of refrigerant.
The stringent provisions are listed for the damage of the atmospheric ozone layer and the impact of the global warming effect. It is the refrigeration system in the refrigeration and air conditioning industry today.
A basic standard that is more detailed and complete in the context of the heat pump.
This standard retains the main content of the original version, only for a small part of the content, such as the definition of the terms and conditions that have been formulated and are being approved in China.
There are duplicate clauses in the standards or industry standards, as well as statements that are inconsistent with China's national conditions in the articles, and the necessary additions and deletions have been made.
This standard was proposed by the Ministry of Commerce of the People's Republic
This standard is under the jurisdiction of the National Refrigeration Standardization Technical Committee.
This standard was drafted. China Refrigeration Society, Jiangsu Baixue Electric Co., Ltd., Xi'an Jiaotong University, domestic trade engineering design and research
Research Institute, National Commercial Refrigeration Equipment Quality Supervision and Inspection Center.
The main drafters of this standard. Yu Bingfeng, Hu Wangyang, Qi Pengcheng, Li Tiantian, Wang Congfei, Liu Xiaopeng, Xiao Yang.
The release of previous versions of this standard is.
---SB/T 10345.1-2001.
Refrigeration systems and heat pump safety and environmental requirements
Part 1. Basic requirements, definitions and classification
1 Scope
This part of SB/T 10345 specifies the safety requirements for persons and property (excluding stored goods) in the following cases, as well as local
And the requirements of the global environment.
a) fixed or mobile refrigeration systems of all sizes, including heat pumps;
b) secondary cooling or heating system;
c) The installation location of the above refrigeration system.
This section applies to the replacement of refrigerants and pressure vessels for new refrigeration systems and existing refrigeration systems, as well as for the dimensions of existing systems.
Protection, overhaul, handling, recycling, reuse and disposal.
Only some of the sections and clauses in this section are applicable to refrigeration systems with low refrigerant charge.
This section does not apply to refrigeration systems that use air or water as refrigerant; for refrigeration systems that use refrigerants not listed in Appendix D
As long as the safety classification of these refrigerants has not been determined, this section does not apply.
2 Normative references
The following documents are indispensable for the application of this section. For dated references, only dated versions apply to this Part.
Minute. For undated references, the latest edition (including all amendments) applies to this section.
GB 9237 Safety requirements for mechanical refrigeration systems for refrigeration and heating (GB 9237-2001, ISO 5149.1993, eqv)
GB/T 18517 refrigeration terminology
GB/T 24040 Environmental Management Life Cycle Assessment Principles and Framework (GB/T 24040-2008, ISO 14040.2006, IDT)
ISO 817 refrigerant identification system
ISO 12100 Mechanical Safety Design General Risk Assessment and Reduction
3 Terms and definitions
The following terms and definitions defined in GB/T 18517 apply to this document.
3.1 refrigeration system refrigerationsystems
3.1.1
Refrigeration system (heat pump) refrigeratingsystem(heatpump)
Interconnected collection of refrigerant components that form a closed refrigerant cycle in which the refrigerant circulates
Absorbs and releases heat (such as cooling, heating).
3.1.2
Monolithic system self-containedsystem
Factory-built, complete refrigeration systems housed in frames and/or cabinets that can be assembled into one or several sections and
Transportation, in addition to the matching valve or blocking valve, the site does not connect any components containing refrigerant.
3.1.3
Unit system system
A monolithic system that has been assembled prior to installation and that has been filled with refrigerant for use prior to installation and installation.
How to contain the components of the refrigerant. A unit system may also include a factory-fitted or blocked valve.
3.1.4
Limited filling system limitchargedsystem
Refrigeration system with limited volume and refrigerant charge. When the system stops running, even if the charged refrigerant is completely evaporated, it will not
Allow the pressure inside the system to exceed the allowable pressure.
3.1.5
Absorption or adsorption system absorptionoradsorptionsystem
The refrigerant evaporates to produce refrigeration, and the refrigerant vapor is then absorbed or adsorbed by the absorption medium or the adsorption medium, and then the refrigerant is heated.
A system that is released from a medium at a higher partial vapor pressure and cooled to a liquid, known as an absorption or adsorption system.
3.1.6
Secondary cooling or heating system secondary coolingingheatingsystem
The use of fluid to transfer heat from a product or space to be cooled or heated, or from another cooling or heating system to a refrigeration system, the process
The fluid is uncompressed and expanded.
3.1.7
Closed system closedsystem
All components containing refrigerant are sealed by flanges, threaded joints, etc.
3.1.8
Sealing system sealedsystem
All components containing refrigerant are sealed by a permanent connection such as welding, brazing, etc.
3.1.9
High pressure side highpressureside
The portion of the refrigeration system that operates near the pressure of the condenser or gas cooler.
3.1.10
Low pressure side lowpressureside
The portion of the refrigeration system that operates near the evaporator pressure.
3.1.11
Mobile system mobilesystem
Usually refers to a refrigeration system that operates in a moving state, including refrigeration systems for refrigerated cargo or air conditioning on ships and aircraft, and
The refrigeration system used on vehicles and containers that transport refrigerated cargo.
3.1.12
Cascade system cascadesystem
Consisting of two or more independent refrigeration cycles, in which the heat of the condenser of one circulation system is directly discharged to another cycle system
System evaporator.
3.1.13
Transcritical cycle
The refrigeration cycle in which the refrigerant compressor discharge pressure is greater than the critical pressure of the refrigerant.
3.1.14
Assembly assembly
A single unit with deterministic functions (such as condensing units) assembled by several components, usually connected in the field to become a complete unit
system.
3.1.15
Component component
A single functional device of a refrigeration system or a component of an assembly, but does not include seals, fasteners, and the like.
3.2 place, location occupancies, localities
3.2.1
Machine room
A fully enclosed room or space, ventilated with mechanical ventilation, allowing only designated personnel to enter. The equipment room is equipped with components of the refrigeration system or
Set of refrigeration systems. Other equipment, as long as it meets the safety requirements of the refrigeration system, can also be placed in the equipment room.
3.2.2
Special machine room specialmachineryroom
A machine room dedicated to the installation of a complete refrigeration system or refrigeration system component is only allowed to be serviced and serviced by qualified personnel.
3.2.3
Occupied space (personality, place) occupiedspace(occupancy)
A completely enclosed space (a human being) that was occupied during an important period of time. Designed or constructed around a human place
The resulting space, although not properly sealed, is still considered part of a human space. The venue can be directly connected to the public area or only to professionals
The place where the staff works. The components of the refrigeration system or the entire refrigeration system may be located within the premises.
3.2.4
Air lock airlock
An isolation chamber with separate entrance and exit doors that allow personnel to pass from one location to another.
3.2.5
Lobby lobby
Entrance hall or large corridor used as a waiting room.
3.2.6
Walkway halway
Corridor for people to pass.
3.2.7
Export exit
Openings on the outer wall, with or without doors.
3.2.8
Exit channel exitpassageway
Close to the exit passage, the person leaves the building through the passage.
3.2.9
Cold room coldroom
The internal temperature is maintained by the refrigeration system in a room or cabinet below ambient temperature.
3.2.10
Direct connection directconnection
The connection between the room and the room has an opening in the partition wall, which can be freely partitioned from the room by closing the door, window or skylight.
3.2.11
Open air openair
Roofed or uncovered, wallless space.
3.2.12
Evacuation channel escapeduct
A dedicated access as an emergency exit.
3.2.13
Crawling space crawlspace
Usually used only for people to crawl into the space for maintenance.
3.3 Pressure pressures
3.3.1
Gauge pressure
The gauge pressure is equal to the difference between absolute pressure and atmospheric pressure. All pressures refer to gauge pressure unless otherwise stated.
3.3.2
Maximum allowable pressure maximumalowablepressure
The maximum design pressure of the equipment specified by the manufacturer. The maximum allowable pressure is the working pressure that should not be exceeded when the system is running or not running.
The force limit is expressed by "PS".
3.3.3
Design pressure designpressure
The pressure chosen to calculate the pressure for each component. It is used to determine the necessary material and thickness of each component according to the pressure resistance.
structure.
3.3.4
Pressure test pressure strengthtestpressure
Pressure used to test the strength of any component in a refrigeration system or refrigeration system.
3.3.5
Seal test pressure leaktestpressure
The pressure used to test the tightness of a system or any of its components.
3.3.6
Surge starting pressure surgelimit
The pressure at which the refrigerant flow of the centrifugal compressor begins to be unstable.
3.4 Components of the refrigeration system componentsofrefrigeratingsystems
3.4.1
Refrigeration device refrigeratinginstalation
A combination of refrigeration system components and all components necessary for operation of the refrigeration system.
3.4.2
Refrigeration equipment refrigeratingequipment
Components that make up the refrigeration system, such as compressors, condensers, generators, absorbers, adsorbers, reservoirs, evaporators, low pressure reservoirs.
3.4.3
Refrigeration compressor refrigerationcompressor
A machine that mechanically increases the vapor pressure of a refrigerant.
3.4.4
Motor-compressor motorcompressor
A unit that is fixedly assembled with an electric motor and a compressor.
3.4.4.1
Fully enclosed motor-compressor hermeticmotorcompressor
The compressor and the motor are combined and packaged in the same casing, without an outer shaft or shaft seal, and the motor is mixed with oil and refrigerant vapor.
Run in.
3.4.4.2
Semi-closed (detachable closed) motor-compressor semihermetic (accessiblehermetic) motorcompressor
Composed of a compressor and an electric motor, both of which are housed in the same casing, with a detachable cover for inspection, but no external shaft or shaft seal, electricity
The motive runs in a mixture of oil and refrigerant vapor.
3.4.4.3
Fully enclosed rotary motor - compressor cannedrotormotorcompressor
Seal the rotary motor-compressor inside the casing.
3.4.5
Open compressor opencompressor
A compressor having a drive shaft that can extend into a casing that seals the refrigerant.
3.4.6
Positive displacement compressor
A compressor that compresses by changing the internal volume of the compression chamber.
3.4.7
Non-positive displacement compressor
A compressor that does not compress by changing the internal volume of the compression chamber.
3.4.8
Pressure vessel pressurevessel
Any component containing refrigerant in the refrigeration system, except.
---Semi-closed and open compressors;
--- coils consisting of tubes (including headers) and using air as the secondary heat transfer fluid;
---Pipe and its valves, fittings and accessories;
---Control device;
---pressure switch, meter, liquid indicator;
---Safety valve, fusible plug, rupture disc;
---Pump.
3.4.9
Condenser condenser
A heat exchanger that liquefies a refrigerant vapor by removing heat.
3.4.10
Gas cooler gascooler
A heat exchanger in a transcritical system that cools a supercritical refrigerant by removing heat.
3.4.11
Liquid receiver liquidreceiver
A container for storing liquid refrigerant that is permanently connected to the refrigeration system through an inlet and outlet conduit.
3.4.12
Liquid collector (gas-liquid separator) accumulator
A container capable of storing liquid refrigerant permanently connected to the refrigeration system between the evaporator outlet and the compressor suction.
3.4.13
Evaporator evaporator
A heat exchanger that vaporizes a liquid refrigerant by absorbing heat of a cooled object.
3.4.14
Coil coil
A component of a refrigeration system made up of suitably connected elbows or straight tubes used as a heat exchanger (evaporator or condenser).
3.4.15
Compressor unit compressorunit
A combination of one or more compressors and conventionally mounted accessories.
3.4.16
Condensing unit condensingunit
A combination of one or more compressors, condensers, reservoirs (when required) and conventionally mounted accessories.
3.4.17
Low pressure reservoir surgedrum
A container containing a low-pressure low-temperature refrigerant and connected to the evaporator through a supply pipe and a return pipe.
3.4.18
Total internal product internalgrossvolume
The volume calculated from the internal dimensions of the container does not subtract the volume occupied by any part inside the container.
3.4.19
Net content product internalnetvolume
Calculate the volume based on the internal dimensions of the container and subtract the volume occupied by the internal permanent parts of the container.
3.4.20
Certified component typeapprovedcomponent
One or more samples pass the certified component in accordance with the certification criteria associated with the certification.
3.5 piping and joints pipingandjoints
3.5.1
Pipe thread
Pipes for interconnecting the various components of the refrigeration system, including hoses, bellows, fittings or flexible pipes.
3.5.2
Joint joint
Used for the connection between two parts.
3.5.3
Welded joint weldedjoint
A joint obtained by joining plastic or molten metal parts.
3.5.4
Brazed joint brazedjoint
By using a joint obtained by joining metal parts with an alloy, the melting temperature of the alloy is usually higher than 450 ° C but lower than the melting of the connected parts.
temperature.
3.5.5
Brazed jointsoldedjoint
A joint obtained by joining a metal part with a metal mixture or alloy, the melting temperature of the metal mixture or alloy is usually lower than
450 ° C.
3.5.6
Solder joint head softsolderedjoint
The melting temperature of the metal mixture or alloy is less than.200 ° C by a joint obtained by joining a metal part with a metal mixture or alloy.
3.5.7
Flanged connection flangedjoint
A bolted joint that secures a pair of flange end faces together.
3.5.8
Flared connection flaredjoint
A metal-to-metal compression joint in which the tube ends are conically expanded.
3.5.9
Compression joint compressionjoint
A sealed joint is obtained by deforming the compression ring.
3.5.10
Threaded pipe end pipethreadend
A pipe end having a straight or conical thread is obtained by using a filler material or a thread 匝 deformation.
3.5.11
Header header
A pipe assembly in a refrigeration system that is connected to several other pipes.
3.5.12
Cutting device shut-offdevice
A device that blocks the flow of a fluid such as a refrigerant or a brine.
3.5.13
Companion stop valve companion(block)valves
Combined shut-off valves in pairs that separate the refrigeration system into sections and close the sections before opening the valve
These parts can be disconnected after the valve.
3.5.14
Quick closing valve
A closing device that automatically closes or closes an angle of less than or equal to 130° by gravity, spring force, fast-closing ball, or the like.
3.5.15
Globe valve isolatingvalves
A valve that prevents fluid from flowing in either direction when closed.
3.5.16
Locking valve lockedvalve
A valve that is sealed or otherwise restricted and that can only be operated by authorized personnel.
3.5.17
Nominal size nominalsize (DN)
A common representation of the dimensions of all components in a piping system, as opposed to using outer diameter or thread size, to facilitate integers
Indicates that its value is slightly different from the manufacturing size.
3.6 Safety accessories safetyaccessories
3.6.1
Pressure relief device pressurereliefdevice
Safety valve or rupture disc for automatic release of excessive pressure.
3.6.2
Safety valve pressurereliefvalve
Pressure-driven valves that are held closed by springs or otherwise and that are used to automatically release excessive pressure, starting at a set pressure value
Open and close again when the pressure drops below this set value.
3.6.3
Bursting piece burstingdisc
A diaphragm or sheet metal that can be blasted at a predetermined pressure differential.
3.6.4
Fusible plug fusibleplug
There is a metal material that can be melted at a predetermined temperature, and a safety device for releasing pressure.
3.6.5
Temperature limiter temperaturelimitingdevice
A device that is used to prevent unsafe temperatures from appearing and is driven by temperature.
3.6.6
Certified temperature limiter typeapprovedtemperaturelimiter
The certified temperature-limiting safety switch can be used for fail-safe protection of the device in the event of a fault or defect.
3.6.7
Pressure limit safety switch safetyswitchingdeviceforlimitingthepressure
A device that is used to stop the operation of the pressure generator and is driven by pressure.
3.6.7.1
Voltage limiter pressurelimiter
A device that can be automatically reset is called PSH for high voltage protection and PSL for low voltage protection.
3.6.7.2
Certified voltage limiter typeapprovedpressurelimiter
The certified safety switch for voltage limiting is called PSH for high voltage protection and PSL for low voltage protection.
3.6.7.3
Certified pressure disconnector typeapprovedpressurecutout
No need for tools to assist with the manual resetting of the safety switch for pressure limiting, for high voltage protection called PZH, for low voltage protection
For PZL.
3.6.7.4
Certified safety pressure disconnector typeapprovedsafetypressurecutout
A certified safety switch for pressure limiting that requires manual assistance to be manually reset. For high voltage protection, it is called PZHH, for low pressure protection.
Protected as PZLL.
3.6.8
Converter changeoverdevice
A valve that controls two safety devices, one of which does not work at any one time.
3.6.9
Refrigerant detector
A detecting device that reacts to a predetermined concentration of a refrigerant in the environment.
3.6.10
Overflow valve
A pressure relief device that discharges refrigerant to a lower pressure portion of the refrigeration system.
3.6.11
Flutter protector surgeprotectiondevice
A device that stops the compressor after several chattering pulsations can measure the differential pressure across the compressor or drive the input current of the motor.
Determine the chattering pulsation of the compressor.
3.6.12
Level cutter liquidlevelcutout
A device used to prevent unsafe liquid levels and being driven by liquid level.
3.6.13
Self-closing valve selfclosingvalve
A valve that can be automatically closed by gravity or spring force.
3.7 Fluid fluids
3.7.1
Refrigerant
a fluid in a refrigeration system that transfers heat that absorbs heat at low temperatures and low pressures, at higher temperatures and higher pressures.
The heat is released, usually including its phase change.
3.7.2
Heat transfer medium heat-transfermedium
Fluid for heat transfer, usually without any phase change (such as salt water, water, air) or phase change (such as CO2) when pressure is constant; when listed in Appendix D
When the fluids are used as heat transfer media, they should meet all requirements for refrigerants.
3.7.3
Toxicity toxicity
The nature of a fluid that causes a harmful or lethal effect by acute or chronic exposure due to exposure, inhalation or ingestion.
3.7.4
Combustible lower limit lowerflammabilitylimit (LFL)
The minimum concentration of refrigerant that can grow a flame within a homogeneous mixture of refrigerant and air.
3.7.5
Fractionation fractionation
Variations in the composition of the mixed refrigerant components, such as evaporation of volatile components or condensation of less volatile components.
3.7.6
Outdoor air outsideair
Air from outside the building.
3.7.7
Halogenated hydrocarbons and hydrocarbons halocarbonandhydrocarbon
Contains the following categories.
CFC. a fully halogenated (hydrogen free) halogenated hydrocarbon containing only chlorine, fluorine and carbon;
HCFC. a halogenated hydrocarbon containing hydrogen, chlorine, fluorine and carbon;
HFC. a halogenated hydrocarbon containing only hydrogen, fluorine and carbon;
PFC. a perfluorinated halogenated hydrocarbon containing only fluorine and carbon;
HC. a hydrocarbon containing only hydrogen and carbon.
3.7.8
Recycling recovery
The refrigerant is withdrawn from the system and stored in an external container.
3.7.9
Recycling recycle
Remove moisture, acidity and by separating oil, removing non-condensate, and using equipment such as filters, dryers or drying filters
Particulate matter to reduce impurities in used refrigerant.
3.7.10
Regeneration reclaim
The used refrigerant is processed to meet the technical requirements of the new product.
3.7.11
Disposal disposal
Ship the product to another party for destruction.
3.7.12
Bubble point bubblepoint
The liquid saturation temperature of the refrigerant at a given pressure at which the liquid refrigerant begins to boil for the first time. Non-azeotropic mixed refrigeration under constant pressure
The bubble point of the agent is below the dew point.
3.7.13
Autoignition temperatureofasubstance of the object
The lowest temperature at which a chemical can spontaneously burn in a normal atmosphere without the need for an external source of igniti...
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