GB 25116-2010Safety requirements for industrial laundry machinery -- Dry-cleaning machines using perchloroethylene (English PDF)

4.1 Use of dry-cleaning machines related risk

4.1.1 Mechanical hazards

4.1.1.1 motion drive assembly. cut, wound or clamping.

4.1.1.2 rotating basket. cut, wound or clamping.

4.1.1.3 pop machine parts. Impact.

4.1.2 Electrical Hazards

See section 4.2 of the provisions of GB 25115.1-2010.

4.1.3 Supply of dangerous failures caused

Supply of heat, electricity, compressed air, the danger of the coolant may be generated.

4.1.4 thermal hazards

4.1.4.1 hot surfaces. burns.

4.1.4.2 steam heating surface. burns.

Use of the assembly of the hot fluid pressure 4.1.4.3. burns.

4.1.4.4 Use of the pressure fluid components. burns.

4.1.5 noise hazard

Noise may be generated when the dangerous release agent (tetrachlorethylene).

4.1.6 dangerous machine vibration generated

Damage to the machine and/or machine move, collisions.

4.1.7 tetrachlorethylene risk

The following may cause the risk of an operator, and other persons present public inhalation of harmful gases, tetrachlorethylene contact with the skin (including the foot) and eye

Eyes, and contaminated water and soil.

4.1.7.1 loading/unloading tetrachlorethylene distributing the door is open or leaking.

4.1.7.2 outside the machine is not fully dried material in the PCE volatile.

4.1.7.3 In the operation and maintenance of water separator, tetrachlorethylene emit into the workplace and into the soil or into the sewer.

4.1.7.4 tetrachlorethylene leak from joint activities, door seals and hoses, etc..

4.1.7.5 emit or leak when cleaning the lint filter.

4.1.7.6 When the clean-up button trap, tetrachlorethylene will be distributed or leak.

4.1.7.7 When the filter clean and maintain solvent, tetrachlorethylene will be distributed or leak.

4.1.7.8 operation, clean up and maintenance of a distillation unit will be distributed or tetrachlorethylene leak.

4.1.7.9 distributing tank leak or add tetrachlorethylene process.

4.1.7.10 cause of sporadic or tetrachlorethylene leak due to misuse.

4.1.7.11 drying system is unable to cool tetrachlorethylene distribute or leak.

4.1.7.12 gravity tetrachlorethylene spilled on the ground from the machine.

4.1.7.13 tetrachlorethylene failure due to thermal decomposition of the toxic substance.

4.1.8 ignore the danger caused by human ergonomics principles

Because of mechanical loading door inappropriate height, resulting in excessive operator effort when using health effects of posture and unloading operations.

4.2 In addition to using dangerous machinery and the "life" of the relevant

Non-machine use (such as transport, dismantling and discarding) the risk may arise.

5.1 the use of hazardous cleaning machines related

5.1.1 Mechanical hazards

Guard shall comply with the requirements of Table 1.

Table 1 Safety requirements for protective devices and/or measures

Application basis

Selecting guard

GB/T 15706.2-2007 5.2 in

EN953. Chapter 5, 1997

Design and manufacture of guards

GB/T 15706.2-2007 5.3 in

EN953. Chapters 6 and 7 of the 1997

TABLE 1 (cont.)

Application basis

Fixing guard EN953.1997 of 5.4,7.2 and 7.3

Guard means arranged

ISO 13852.1996 in Table 1 and Table 4

ISO 13853

Interlocking guard ISO 14119.1998 in Chapter 5 of

5.1.1.1 motion transmission assembly

Or the body should be protected against accidental contact with the transmission member. Guard to comply with Table 1.

5.1.1.2 rotating basket

You can not touch the cage when the machine is working, only to open the door after the machine parked in contact with the cage.

The door should meet ISO 14119.1998 in interlock with guard locking Chapter 5, as can be rotatably mounted sensors or delay,

Only after the cage stopped to open the door.

The control system shall comply with category 3 and Class 4 Class GB/T in 16855.1-2008 Chapter 6.

5.1.1.3 pop machine parts

Measures should be taken to prevent the risk of rapidly rotating machine parts to break or pop-up debris caused by the machine design should consider the following.

--- components, in particular the shaft and bearing, should be able to withstand the most vigorous manufacturer under the conditions of use stated in the instruction manual produced, and

Consider foreseen in the design of the machine fatigue, corrosion and aging.

--- stress should be calculated for the ISO 6178 factor G is greater than the dry-cleaning machine 100, cut on the housing cage.

5.1.2 Electrical Hazards

GB 5226.1 security requirements, Option 1, shall comply with the Table 2.

Table 2 Safety requirements for electrical equipment dry cleaning machines and/or measures

Safety requirements and/or measures GB 5226.1-2008 chapter, article

Electric shock and Chapter 16 4,6,7,8,13,14

Over-current, over speed and overload and Chapter 78

Environmental impact and Chapter 4, 12 14

Electromagnetic compatibility and Chapter 4, 8, 9

Power supply interruption or voltage drop followed by recovery protection 7.5

Check the control equipment, placement, identify and Chapter 10, 11, 16

Manual operation should consider Chapter 10 and 11 of ergonomics principles

And a wiring connection and Chapter 12 13

Accessories and lighting Chapter 15

Technical documentation and instruction manuals Chapter 17

Machine Inspection Chapter 18

Protection class 11.3

Unless otherwise specified special security features, control systems and safety-related parts shall comply with Class 1, see GB/T 16855.1-2008

Chapter 6.

Emergency stop devices shall meet the special requirements of GB 16754. It should stop all functions of the machine, except for the cooling function.

Main switch of the machine should be able to lock, see EN1037.

5.1.3 supply failure

If a fault occurs or more supply (heat, electricity, compressed air or coolant), the machine will automatically be in a safe condition.

--- door is closed and locked position, use a tool to open;

--- tetrachlorethylene all can leak out of the machine to automatically return to the safe position of the valve;

--- in the washing process, the machine stops after restart, the selection procedure manual control by an operator;

--- monitor the cooling water, the flow rate or pressure instability when the machine automatically shut down. See 5.1.7.8h) and 5.1.7.11. Pneumatic system operator

Co-EN983.1996 requirements in Chapter 5.

5.1.4 thermal hazards

5.1.4.1 hot surface

To avoid the risk of burns due to contact with the heated surfaces, the surface temperature should be kept below the following values.

--- uncoated metal 70 °C

--- coated metal (eg. layer thickness 60µm) 80 °C

--- glass 85 °C

If you can not do that, the surface to be protective, insulated or isolated.

Due to technical reasons, can not provide complete protection measures (such as distillation mirrors) design, then there should be warnings on the machine, and

The instruction manual for the operator to specify the use of personal protective measures and training.

Steam heating surface 5.1.4.2

Manufacturer should give off steam supply technical information about the individual valves in the instruction manual. Steam pipes should be insulated.

5.1.4.3 Use of a hot fluid pressure assembly

In order to prevent the fluid temperature is too high, there should be a temperature regulator directly controls the energy supplied to the heating means.

The maximum temperature should be below the temperature regulator manufacturer's recommended maximum operating temperature of the hot fluid. Independent measured temperature of the hot fluid, in order to control

System temperature regulator correct operation. If the temperature regulator fails over the operating temperature limits, a warning should be issued. guide

Manual operation should be given the correct information.

In a heating cabinet shall be installed in a reservoir, or tank has sufficient heating capacity, will not heat the highest temperature of the temperature regulator control

Fluid expansion overflow. Heating box can be checked through the level of the hot fluid temperature regulator, such as by direct reading.

Closing the control valve when the machine stationary heat transfer fluid, such as the use of an automatic valve normally closed.

Regular cleaning of the discharge pipe should be required instruction manuals, such as the clean up once a year to prevent clogging.

5.1.4.4 using the pressure of the fluid component

Thermal design of the pressure fluid (steam, water or oil) or a flexible assembly through the brittle material. (such as glass) components made, sit

Consider spraying or prevent leakage or rupture caused by protective elements.

5.1.5 noise hazard

This section is devoted to measures to reduce noise is not included. Early in the design, noise should be considered dangerous. Should be selected based on the latest technology

Choose the correct measures, see ISO /T R11688-1.

5.1.6 dangerous machine vibration generated

The design should take measures to reduce unbalance vibration caused by uneven distribution of the maximum rated load of the material generated as a result (e.g., machine

Each device should have sufficient strength member and fixed to the machine base). Automatically Ping Heng system can also be installed on the machine.

5.1.7 danger tetrachlorethylene generated

The following measures for dry-cleaning machines described in the job site, in order to enable operators and other persons present in the gas may be sucked tetrachlorethylene

Reduce the risk to a minimum.

Manufacturers in the instruction manual and methods should provide for proper guidance of the machine power supply and ventilation interlock workshop. To ensure that the

In the absence of starting ventilation, the machine will not start.

5.1.7.1 Open loading door

After tetrachlorethylene was added the outer cylinder, the door can not be opened readily. Before drying process and deodorization process is complete, the door should remain interlock, see

5.1.7.2 and ISO 14119.1998 in Chapter 5, should meet the safety category 5.1.1.2.

5.1.7.2 not fully dried material in the volatile tetrachlorethylene

Prior to drying, the deodorizing process is not completed, the material is not properly removed from the machine. Or control the flow rate of the solvent recovered even

Continued drying time, so that the material drying uniform.

After the drying process is complete before deodorization process. Such as. deodorization obtained by the same duration or controlling the temperature or the solvent concentration cage

effect.

If due to a fault (eg supply failure, overload materials, pump failure, etc.) drying and deodorizing process can not be completed, should be in the instruction manual

There are the following recommendations.

--- how to open the door with a tool (can only be operated by trained personnel);

--- how to remove material from the cage with one of the operator and the presence of personnel in a secure manner;

--- How to return to the normal cycle after troubleshooting.

Due to a technical fault during the drying process is interrupted, there should be sound or light alarm and stop working cycle.

An interface should be provided, the outer cylinder when the door is closed, and the batch temperature above 35 °C normal flow, measuring the external cylinder residual gas tetrachlorethylene

concentration.

Note. The machine tetrachlorethylene concentration at the end of the cycle may have national regulations, the need for specialized technical characteristics.

On the loading door basket should be noted identification rated load (see ISO 8232), the operator's attention, if the machine is overloaded, there is not

The risk of completely drying materials. Guidebook should have the same content.

5.1.7.3 In the operation and maintenance of the water separator, the presence of tetrachlorethylene may have been scattered into the workplace and into the soil or into the sewer

Danger

A water separator outlet is closed to apply a water collection tank pipe, so as to avoid the discharge failure tetrachlorethylene.

Set tank capacity is not less than the discharge amount of machine work day, and observing whether there is to be noted that tetrachlorethylene in the collecting tank, such as by

Observation window. Flag on the current tank should alert the operator. water containing tetrachlorethylene, attention protection. Guidebook should have the same content.

Guidebook should require to be taken to ensure the safety injection machine tetrachlorethylene, and daily to drain the water produced by the machine.

Drain water separator tank and the other set, when the water circuit should be directly exhausted through the manual valve automatically closes to a distillation tank or

His tank.

5.1.7.4 tetrachlorethylene from joint activities, door seals and hoses leak

All contact with the gas or fluid tetrachlorethylene movable joint, door seal and structural material should be resistant hoses tetrachlorethylene.

Flexible seal parts in the recommended maintenance period should be flexible.

Including the hose member should have sufficient rigidity to withstand the mechanical forces generated during use, should be in the anti-fatigue recommended maintenance period

Labor or resistant to abrasion and tetrachlorethylene.

5.1.7.5 emit or leak when cleaning the lint filter tetrachlorethylene

After the machine at the door or other obvious places should have warning signs, signs should indicate the lint filter to a complete stop and cooling machine

Clean-up. Guidebook should include content on the mark.

If the lint filter door is open or closed, the machine will not operate (in line with ISO 14119.1998 in 5.3, 5.4 interlock

Device shall prevent the operation of the machine). This safety interlock member should belong to Class 1, see GB /Chapter 6 of 16855.1-2008 T.

5.1.7.6 emit or leak when cleaning button trap tetrachlorethylene

5.1.7.5 The same also applies to the button trap. Button trap structure should be designed to prevent inadvertent opening during the operation caused by

PCE distribute or leak.

5.1.7.7 Operation of the solvent filter, emit cleaning and maintenance or leak tetrachlorethylene

Solvent filter can only be opened with a tool. Opening means should be effective to open slowly and detect whether there is any liquid discharge is not yet fully

put. Positioning of the solvent filter to avoid overflow tetrachlorethylene open the housing, such as. vertical, open at the top, front or lateral opening and

A mounting groove for discharging a fixed flow back to the machine tetrachlorethylene.

Filter outlet to the interior of the machine can not be vented to the atmosphere in the workplace.

Th...

END: Draft Version (GB 25116-2010)