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GB 22360-2008: [GB/T 22360-2008] Vacuum pumps -- Safety requirements
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Basic data | Standard ID | GB 22360-2008 (GB22360-2008) | | Description (Translated English) | [GB/T 22360-2008] Vacuum pumps -- Safety requirements | | Sector / Industry | National Standard | | Classification of Chinese Standard | J78 | | Classification of International Standard | 23.160 | | Word Count Estimation | 24,235 | | Date of Issue | 2008-08-28 | | Date of Implementation | 2009-10-01 | | Adopted Standard | EN 1012-2-1996, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 14 of 2008 (total 127) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard applies to all kinds of vacuum pumps, vacuum unit and vacuum pumping system. Criteria listed in vacuum during use and subsequent disposal process, the dangers associated with important, detailed provisions applicable to pump design, installation, operation, maintenance and demolition process safety requirements. This standard does not apply to open systems under continuous pumping and inlet pressures above 75kPa (750 mbar) of the pump, such as a vacuum cleaner, fan. Some vacuum pump for special occasions related to the application should be consistent with its special standards. | GB 22360-2008: [GB/T 22360-2008] Vacuum pumps -- Safety requirements---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Vacuum pumps.Safety requirements
ICS 23.160
J78
National Standards of People's Republic of China
Vacuum pumps - Safety requirements
Published 2008-08-28
2009-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Foreword
Chapter 5 of this standard 5.1.1 a), b), c), f), g), 5.1.2,5.1.5,5.2.1,5.2.2 , 5.3.1,5.3.2 in a), b),
5.4,5.6.1,5.6.2,5.7,5.8,5.9, Chapter 6, Chapter 7, Chapter 8 8.3 are mandatory, others are recommended sex.
This Standard is a modified EN1012-2.1996 "Safety requirements for compressors and vacuum pumps - Part 2. vacuum pump" (in English).
This standard EN1012-2.1996 chapters, the same terms, the same technical content.
According to this standard EN1012-2.1996 redrafted with EN1012-2.1996 Difference is.
--- to the prior art used with standard vacuum, the EN1012-2.1996 "Safety requirements for compressors and vacuum pumps
Part 2. Vacuum pumps, "the name was changed to China's" vacuum pumps - Safety requirements ";
--- For EN1012-2.1996 international standard references and European standards have been modified using our standard, this standard references
These standards instead of our national or international standard corresponding to European standards; for EN1012-2.1996 international standard reference
Criteria and European standards in our country there is not equivalent to the standard, the standard terms of reference of these national standards corresponding
Instead of international standard or the corresponding European standard; the remainder is not equal to or modifications of the standard adopted as the European standard and the international standard
Quasi, are directly referenced in this standard (see Appendix B of this standard);
--- Due to EN1012-2.1996 in reference files EN292-1, EN292-2 and not referenced in the standard, according to GB/T 1.1 in
Provision be deleted;
--- Because EN1012-2. in 1996 cited documents EN12076 "measurement compressors and vacuum pumps noise emissions (engineering method)"
Obsolete, we deleted the present standard reference standard was replaced with GB/T 21271 "Vacuum pump noise measurement technique";
--- increase the reference standard GB 2894 Safety signs;
--- the EN1012-2. the 1996 bar, mbar change cost standard Pa, kPa.
For ease of use, also made of this standard the following editorial changes.
The term --- "this European Standard" to "this standard";
--- deleted EN1012-2.1996 Foreword;
--- deleted EN1012-2.1996 Introduction;
--- Added Appendix B "EN1012-2.1996 and Chinese standards, international standards corresponding standard number and name."
Appendix A of this standard is normative, Annex B is an informative annex.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee vacuum.
This standard was drafted. on Haikai Ni Vacuum Equipment Co., Ltd., Zhejiang Vacuum Equipment Group Co., Ltd., Chengdu South-ray machines Limited
Department, the State Quality Supervision and Inspection Center for vacuum, Shenyang Institute of Vacuum Technology.
The main drafters of this standard. Jiang Xie Chang, Meng Lin, Zhang Baofu, Li Jianhui, Li Ying, Wang Xuezhi, Wang Lingling.
This standard was first published.
Vacuum pumps - Safety requirements
Range 1
This standard applies to all kinds of vacuum pumps, vacuum unit and a vacuum pumping system. Standard lists during use of the vacuum pump and then
The disposal process, its important dangers related to the detailed provisions applicable to vacuum pump design, installation, operation, maintenance and removal process
The safety requirements.
This standard is not continuous and the suction pressure at the inlet is higher than 75kPa (750mbar) at a pump open system, for example, true
Air cleaners, ventilation fans.
Some vacuum pumps for special occasions should be consistent with its application-specific standards.
2 Normative references
Terms of the following documents become provisions of this standard by reference in this standard. For dated reference documents, all later
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to agreements based on this standard
Whether the latest versions of these documents. For undated references, the latest version applies to this standard.
GB/T 825 eyebolt (GB/T 825-1988, neq ISO 3266. 1984)
GB 2894 Safety Signs (GB 2894-1996, neq ISO 3864. 1984)
GB/T 3163 vacuum technology (GB/T 3163-2007, ISO 3529. 1981, MOD)
GB 4793.1-2007 measurement, control, and laboratory safety requirements for electrical equipment with Part 1. General Requirements
(GB 4793.1-2007, IEC 61010-1.2001, IDT)
GB 5226.1-2002 Safety of machinery Electrical Equipment Part 1. General requirements (IEC 60204-1.2000,
IDT)
GB/T 5465.2 electrical equipment graphical symbols (GB/T 5465.2-1996, idt IEC 417.1994)
GB/T 8196 mechanical safety device fixed and movable guards for the design and general requirements (GB/T 8196-
2003, ISO 14120.2002, MOD)
GB/T 12241 General requirements valve (GB/T 12241-2005, ISO 4126-1.1991, MOD)
GB/T 12265.1 mechanical safety distances to prevent (GB/T 12265.1-1997 upper limbs danger zones,
eqvEN294.1992)
GB /14574 and verification of labeling machines and acoustic noise emission values apparatus T (GB/T 14574-2000, eqv ISO 4871.
1996)
GB/T 16273.1 device with graphical symbols common symbol (GB/T 16273.1-1996, neq ISO 7000. 1989)
GB 16754 Safety of machinery - Emergency stop design principles (GB 16754-1997, eqv ISO /IEC 13850.1995)
Ergonomics data GB/T 18153 Safety of machinery may contact the surface temperature of the heat surface temperature limit determined (GB/T 18153-
2000, eqvEN563.1994)
GB 18209.1 mechanical safety instructions, and the operation flag Part 1. Requirements for visual, auditory and tactile signals
(GB 18209.1-2000, idt IEC 61310-1.1995)
GB/T 21271 Vacuum pump noise measurement technique (GB/T 21271-2007, ISO 2151.2004, MOD)
ISO /T R11688-1 acoustic recommended protocol machine and the low noise design examples Part 1. Program
ENV1070 term mechanical safety
EN1127-1 Explosive atmospheres explosion prevention and protection - Part 1. Basic concepts and methodology
EN60079-0 electrical equipment explosive gas atmospheres Part 0. general requirements
EN60529 cage (IP specification) proposed degree of protection
EN61000-6-2 Electromagnetic compatibility (EMC) Part 6-2. General Standard for industrial environments Immunity
EN61000-6-4 Electromagnetic compatibility (EMC) Part 6-4. Generic environmental emission standard industrial frequency
3 Terms and Definitions
ENV1070 and GB/T 3163 and established the following terms and definitions apply to this standard.
3.1
Within a specified space, lower than ambient atmospheric pressure in a gaseous state.
Note. Vacuum is generally measured residual gas pressure in units of Pascals (Pa) or milibar (mbar). 1mbar = 100Pa.
3.2
Generating, improvement and (or) a means for maintaining a vacuum.
Note. In this standard, the term "vacuum" and "pump" has the same meaning.
3.3
The gas is drawn into the inlet of the vacuum pump.
3.4
A vacuum pump or vent outlet.
3.5
The maximum inlet pressure of the pump can be started.
3.6
Maximum pressure pump outlet specified by the manufacturer.
3.7
Gas flow rate through the pump inlet, the gas pressure is typically expressed as the product of its volume generated per unit time.
3.8
In addition to the vacuum pumping of the material, such as a gas, vapor, mist liquid and entrained solid particles.
3.9
Vacuum pump operation used liquid.
3.10
Maximum pump outlet pressure equal to or higher than ambient pressure.
3.11
Maximum starting pressure or maximum outlet pressure below atmospheric pressure or a vacuum pump operating at lower pressures, it is usually with the primary
Associated pump generates a pressure lower than the pressure generated by the single primary pump.
3.12
For generating a vacuum with a vacuum pump or a vacuum pump unit attachment. Accessories including piping, valves, filters, coolers, control means
And other devices to meet performance requirements.
3.13
Using displacement vacuum pump chamber volume of the cycle to complete suction and exhaust means, the gas is compressed prior to exclusion.
3.14
Directional high-speed vapor stream and gas molecules collide with each other to carry the gas to the vacuum pump outlet for exhaust gas. Namely. Diffusion
Jet pump and a diffusion pump.
3.15
The porous medium is pumped media or on very low surface temperature (below 120K) collecting, using a large effective area, or in the low
Isothermal conditions was pumped down to vacuum adsorption medium. Example. adsorption pumps and cryogenic pumps. The term "low temperature" as used herein, is lower than the temperature
120K.
3.16
Mainly by chemical reaction with the getter pump to the intake. A getter typically a metal or alloy, the shape may be a block (volume
Product suction pump) or using sublimation (sublimation pump), and a cathode evaporable getter sputtering (sputter ion pump).
3.17
Speed rotation of the rotor momentum to pass the gas molecules, it is transmitted to the vacuum pump outlet. For example. molecular drag pumps and turbomolecular
Proton pump.
3.18
Specified by the manufacturer of the maximum working pressure.
3.19
Specified by the manufacturer of the minimum operating pressure.
3.20
Heating process in a vacuum system to reduce the rate of gas releasing surface of the system so as to obtain a lower pressure.
3.21
A displacement type vacuum pump, for pumping methane gas dumpster lowered, depending on the ore and methane gases harmful environment.
4 vacuum pump Hazard List
4.1 mechanical hazards
Referring to safety requirements.
4.1.1 The main hazards
a) contacting the cutting member due to the movement generated. For example. a drive belt, a cooling fan, couplings, and the rotor shaft. 5.1.1
b) produced by the cutting sharp edge. For example. sheet metal, the tube has crimped and turbine blades. 5.1.1,5.1.4
Pulling c) a vacuum system. 5.1.1
d) As a vacuum pump or a vacuum pump system components resulting in breakage of the parts is emitted. 5.1.1
e) burst due to the pressure caused by excessive vacuum system, causing parts emitted. There are reasons for the formation pressure is too high. 5.1.1,7.3.1
--- vacuum pump rotation is incorrect;
--- blocked or restricted the exhaust gas;
--- an erroneous operation such that the gas entering the vacuum system;
--- fracture mechanical member;
--- off the vacuum pump to cause reverse operation.
f) to increase or decrease the stability of the time-shifted split fittings. 5.1.1
g) the mechanical stability damaged during transport. 5.1.1
h) due to lack of the lifting apparatus during lifting impaired mechanical stability. 5.1.1
i) vacuum pump oil leak caused by slipping, falling and falling. 5.1.1
4.1.2 Hazard for vapor flow pump
Vapor stream without cooling the pump, the inlet, the outlet valve is closed, and operating at atmospheric pressure rise in pressure, causing parts emitted. 5.1.2.
4.1.3 Hazard pump for cryogenic trap
Since the cryogenic trap caused by the bursting of the pump part is emitted, its causes are. 5.1.3
--- trapping medium is drawn into the seal release systems;
--- cooled in a closed system used for cooling the heated high-pressure refrigerant excessively high pressure is generated;
--- refrigerant container fire resulting from excessive pressure;
--- structural material used in a low temperature failure.
4.1.4 Hazard for getter pumps
Magnetic harm when touched by hand. 7.3.1
4.1.5 Hazard for molecular pump
a) within a turbomolecular pump ejection rotation of the rotor; 5.1.5
Cracking at high speed b) a turbomolecular pump rotor, debris emitted;
c) in balancing turbomolecular pump rotors disorder or sudden deceleration, cause instability of the pump.
4.2 electrical hazards
4.2.1 The main hazards
--- direct or indirect electrical contact; 5.2.1
--- static phenomenon;
--- external influences on electrical installations.
4.2.2 Hazard for vapor flow pump
A heating element isolation insulator absorbs moisture causing leakage. 5.2.2.
4.2.3 Hazard for getter pumps
Caused through the high pressure pump is brought into contact with the outer. 5.2.3
--- not cut off the power and the pump power, high pressure release resistance failure;
--- high baking temperature mechanical damage or destruction of the insulator.
4.3 Thermal Hazards
a) contacting the surface with a high temperature caused by burn; 5.3.1,5.3.2
b) a cryogenic surface, frostbite or in contact with supercooled refrigerant gas caused;
c) contacting hot pump oil or lubricant burn caused.
4.4 harm caused by noise
High noise cause hearing damage. 5.4
4.5 Radiation hazards caused
Contacting to the suction generated by the pump ionizing radiation. 5.5
4.6 harm the vacuum pump and the exhaust gas during use, materials and substances produced by
4.6.1 The main hazards
a) During operation, the harmful emissions of toxic gases or vapors caused; 5.6.1
b) oil seal pump discharge oil mist, inhalation hazards caused by such emissions; 5.6.1
c) the repair process, in contact with the lubricant, the pump fluid or pumped medium hazards, toxic lysate/reaction induced; 7.6.2
d) processing caused by the explosion of flammable gas or vapor, or exclude, fire; 5.6.1
e) caused by the explosion when handling or excluded oxidants, fire; 5.6.1
f) processing caused by the explosion of flammable gas, fire; 5.6.1
g) a lubricant at a fire caused by pyrolysis; 5.6.1
h) Since the pumped gas is decomposed, causing severe pressure increase due to hazards. 5.6.1
4.6.2 Hazard for vapor flow pump
Contact or inhalation of toxic high temperature fluid through the pump, harm caused by chemical decomposition. 5.6.2
4.6.3 Hazard pump for cryogenic trap
When the pump temperature increase or maintenance, or in contact with the suction pump release toxic substances generated hazards. 5.6.3.
4.7 ignores the ergonomic and mechanical engineering principles in the design caused harm
a) the use of protective means is ignored; 5.7
b) placing the control error of human error caused by instruments and equipment; 5.7
c) errors in the vacuum pump system connected to the harm caused. 6.3,7.3.1
4.8 Hazard power failure, damage, or other components caused by dysfunctional
a) power failure; 5.8.1
b) the central control system failure or disorder program (from the sudden start);
c) assembly errors.
The harm caused by the 4.9 unaware of or incorrect security measures and ways
a) the pump is turned off and the harm caused by the automatic restart when a fault occurs; 5.9,5.10
b) harmful program error caused by a continuous process;
c) the harm caused by programming errors;
d) harm computer component failure.
5 Safety requirements and measures
5.1 Mechanical safety requirements
5.1.1 Basic requirements
a) according to GB/T 8196, for an exposed moving parts protection device disposed prevention protection. If the protection device can prevent
Test manipulator motion EN60529 predetermined contact member may be considered protective effect of the protective device is sufficient enough (see
GB/T 12265.1).
b) all the edges can contact angle should be classified as areas to avoid injury.
c) If protection can only be achieved only after a complete installation of a vacuum system, it should provide temporary protection during the installation of the pump
Measures (for example, if the inlet of the pump can reach the pump mechanical parts, so it should cover pump inlet).
d) the device during use, must be strong enough to withstand the vacuum pressing member. Where such risks can not be eliminated, the need to set
Anti-set pressure controlling means projectile.
e) the design should take into account the accumulation of debris carried pumping gas harmful to the pump. Exhaust gas filters are applied to a sufficiently large capacity
To ensure that the maximum amount of exhaust vacuum conditions of safe operation. Provide measures to ensure that the filter does not result in a saturated or obstruction
Actuator pump inlet pressure exceeds its maximum allowable operating pressure. Accumulated within the pump at the exhaust port or the vacuum system can not avoid fragmentation
, The monitoring device should be equipped with an exhaust pressure or a pressure regulating valve.
f) the system design should be stable in vacuo. 8.3 Stability Test Method described. You should consider the user device may increase other
annex. When the test can not be achieved, it must provide reliable security measures.
g) should be provided or prescribed safety measures vacuum pumps and vacuum systems. The use of tools may include a handle, eyebolts
Roulette, patch panel, bracket. Wherein eyebolts shall comply with GB/T 825 a.
5.1.2 vapor flow pump safety requirements (additional)
System should be designed to ensure that, if the pump is turned off and export operation at atmospheric pressure, no danger.
5.1.3 cryogenic trap pump safety requirements (additional)
a) to prevent the sealing pump or vacuum system pumped gas explosion caused parsed, it requires a vacuum pump arranged pressure reducing unit body. Less
Pressing means in addition to meet GB/T 12241 requirements, also adapted to operate at low temperatures.
b) In order to avoid thermal cycling or stress generated at a low temperature embrittlement leading to material failure of the material used to construct the pump should have suitable for its intended
Mechanical properties of functions.
c) a pressurized gas container and the tank should be designed according to the actual processing and accepted standards.
d) If a malfunction occurs (operation), causing the member under pressure above the pump MAWP, then you need to install
It means a suitable pressure reducing device.
e) If the pump is disconnected from the cryogenic refrigeration compressor, it creates pressure hazards need to provide a means to reduce the pressure safety system
Full pressure levels, and to provide safety instructions.
5.1.4 getter pump safety requirements (additional)
To properly protect the warp easily due to the connection member to fall off, have sharp edges on striking warning.
5.1.5 molecular pump safety requirements (additional)
a) mounting the rotor should be strong enough to prevent the rotation of the rotor from being thrown out outside the pump.
b) a pump housing should ensure sufficient strength to prevent breakage of the rotor pieces thrown.
c) provide certain measures to ensure the security vacuum pumps in the system so that it can withstand the unexpected events of the rotor.
5.2 electrical safety requirements
5.2.1 Basic requirements
a) electrical installation
Vacuum pump electrical installation should meet the requirements of GB 4793.1-2007 and GB 5226.1-2002. Conversion means and protection
Means according to the "failsafe" safety requirements designed and connected.
Externally mounted to the vacuum pump circuit overload protection device, it indicates that the operator should be installed through the current instruction manual of the vacuum pump
Overload protection device.
Breaker device is not configured to a vacuum pump, operating manual request which the user himself provides such a device.
Wiring Requirements To.
--- adequate security and protection;
--- is not in contact with the hot surface;
--- reliable insulation.
A vacuum pump mounted in the potentially explosive atmosphere in which the electric device should meet the safety requirements of EN60079-0.
b) electrostatic phenomena
Harmful to people or may become an ignition source, the need to ground all conductive parts to avoid electrostatic charge accumulation.
c) electrical installations subject to external influences
Equipment design and safety devices even when disturbed, the performance should not be affected. E.g.
--- short circuit;
--- external shocks;
--- voltage changes;
--- electromagnetic field (see EN61000-6-4, EN61000-6-2);
--- ground fault.
5.2.2 vapor flow pump safety requirements (additional)
When designing the protective portion of the heater, to ensure good thermal contact between the heater element and the pump, to prevent a decrease overheating element
Insulation.
5.2.3 getter pump safety requirements (additional)
a) to prevent contact with the high voltage, the conductive parts each pump should have easily protective earthing. If a shielded high-voltage cable
Grounding is achieved, must be predetermined maximum fault current, so that the connection must be. before wiring, grounding means, live conductor
disconnect.
b) connecting the power supply line to the pump through design calculation, and a predetermined maximum open circuit voltage pump.
c) the operating voltage of 1000V over international lines have warning signs.
d) a vacuum pump to a predetermined high voltage and the maximum temperature associated with the line wires and exposed.
5.3 Thermal safety requirements
5.3.1 Basic requirements
When the temperature is too high or too low hazard to operators working medium (cooling lubricants and the like), to deal with the implementation of monitoring the temperature of the medium,
When the medium temperature exceeds the limit To restore them to a safe state.
When the outer surface temperature is higher than 70 ℃ member or lower than -10 deg.] C, the vacuum pump in normal operation, the operator may be exposed to the exterior
Surface, and should be protected in this case, insulation treatment or clearly marked as a warning (see GB/T 18153). Other high temperature
A conduit according to the requirements of the Appendix clearly marked with warning information.
Any line should be free to move with changes in temperature, while the heat pipe should not be in contact with flammable materials or wood.
Vacuum pump installed in a place with a potential explosion hazard, it is necessary to limit the surface temperature, and to eliminate other sources of ignition, see
EN60079-0 and EN1127-1.
5.3.2 vapor flow pump safety requirements (additional)
a) mounting means suitable safety vent to prevent operator contact with the hot pump fluid. The instructions supplied with the pump should provide a pump fluid
A minimum cooling time before the discharge pump.
b) when the pump fluid is insufficient, cool cycle fails or electrical failure, the pump will lead to dangerous temperature, to design suitable for this purpose
Thermal load automatic trip device, the vacuum supply is disconnected before reaching unsafe temperatures.
c) When the danger caused by high temperature diffusion pump oil cracking occurs, it requires a suitable temperature with an automatic trip device.
5.4 Noise
In accordance with standard ISO /T R11688-1, the design should consider reducing noise, there are measures designed to protect the vacuum pump should be able to refer to the highest
At a given ambient temperature continuously run at full capacity.
5.5 Radiation
The outer surface of the getter pump emitted radiation and spurious radiation (wavelength of the same radiation dose 50mm) can not exceed 5μSv/h.
Materials and substances using a vacuum pump and emissions 5.6
When the vacuum pump or vacuum system during use, fluid pumped media and can harm the pump, particularly to be used in this way to eliminate risk
The risk of harm.
5.6.1 Basic requirements
a) the design must prevent gas leakage into the system or a toxic gas leak into the atmosphere. 8.4 should be tight vacuum system in accordance with the test
Sealing properties.
b) the well or install the appropriate separator to prevent unwanted liquid or solid particles from entering the vacuum pump.
c) processing combustibles can cause a fire, should be eliminated by the following measures.
--- design and select the appropriate materials will minimize the risk of ignition sources;
--- selecting appropriate materials and an appropriate ground to prevent the accumulation of electrostatic charge;
--- prevent the entry of foreign particles that come into contact with the rotary shaft within the vacuum ignition occurs.
If water is used as a sealing material should flow meter installation, when the water flow is automatically reduced to a dangerous level cutoff engine.
To avoid the flowing flammable gas, vacuum tightness should detecting system in accordance with the requirements of 8.4.
If conditions permit, the inert gas may be employed to dilute the concentration of flammable substance.
d) when dealing with the oxidant, the main measures to avoid fires and explosions are.
--- Clean all...
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