The external lubrication heavy oil pump equipment safety should not neglect the fault diagnosis and elimination measures. 1. The external lubrication heavy oil pump equipment has no liquid supply, and the Botaibang supply liquid is insufficient or the pressure is insufficient. 1. The equipment is not filled with oil or there is no proper exhaust elimination measures: check the pump casing and Whether the inlet line is completely filled with liquid. The external lubrication heavy oil pump equipment safety should not neglect the fault diagnosis and elimination measures. 1. The external lubrication heavy oil pump equipment has no liquid supply, and the Botaibang supply liquid is insufficient or the pressure is insufficient. 1. The equipment is not filled with oil or there is no proper exhaust elimination measures: check the pump casing and Whether the inlet line is completely filled with liquid.
Brominated flame retardants (BFRs) are organobromine compounds that have an inhibitory effect on the ignition of combustible organic materials. Of the commercialized chemical flame retardants, the brominated variety are most widely used. They are very effective in plastics and textile applications, e.g. electronics, clothes and furniture. BFRs are commonly used in electronic products as a means of reducing the flammability of the product.
Types of applications
The electronics industry accounts for the greatest consumption of BFRs. In computers, BFRs are used in four main applications: in printed circuit boards, in components such as connectors, in plastic covers, and in cables. BFRs are also used in a multitude of products, including, but not exclusively, plastic covers of television sets, carpets, pillows, paints, upholstery, and domestic kitchen appliances.
Brominated Flame Retardant Compounds
Decabromodiphenyl oxide(DBDPO)
1163-19-5
Ethane-1,2-bis(pentabromophenyl)(DBDPE)
84852-53-9
Ethylene bis-tetrabromophthalimide
32588-76-4/5
Tetrabromobisphenol A(TBBA)
79-94-7
Hexabromocyclododecane(HBCD)
3194-55-6
Tetradecabromo- diphenoxybenzene
58965-66-5
88497-56-7
Brominated Polystyrene
88497-56-7
Tetrabromophthalate Diol(TBPD)
77098-07-8
20566-35-2
Tetrabromophthalic anhydride(TBPA)
632-79-1
Brominated Epoxy
68928-70-1
Poly pentabromobenzyl acrylate
59447-57-3
2,3,4,5,6-Pentabromobenzyl acrylate
59447-55-1
Ammonium Bromide
12124-97-9
2,4,6-Tris(2,4,6-tribromophenoxy)-1,3,5 triazine
25713-60-4
Tris(tribromoneopentyl)phosphate(TTBP)
19186-97-1
Tribromoneopentyl alcohol(TBNPA)
36483-57-5
1522-92-5
Dibromoneopentyl glycol(DBNPG)
3296-90-0
2,4,6-tribromophenol
118-79-6
TetrabromobisphenolA Bis(2,3-dibromopropyl ether)(BDDP)
21850-44-2
Carbonate Oligomer of Tetrabromobisphenol A (BC-52)
94334-64-2
Carbonate Oligomer of Tetrabromobisphenol A (BC-58)
71342-77-3
Tetrabromobisphenol A bis(allyl ether) (BE)
25327-89-3
Tetrabromophthalate Ester(TBPE)
26040-51-7
Bis(Tribromophenoxy)Ethane (BTBPE)
37853-59-1
Polydibromostyrene
148993-99-1
1,3,5-Tris(2,3-dibromoisopropyl) isocyanurate(TBC)
52434-90-9
Tribromophenyl allyl ether (TPE)
3278-89-5
2. The equipment speed is too low. Eliminate measures: Check if the motor wiring is correct, whether the voltage is normal or whether the turbine steam pressure is normal.
3. The equipment system oil head is too high. Elimination measures: Check the oil head of the system (especially the friction loss).
4. Equipment suction is too high. Elimination measures: Check the existing net head (the inlet line is too small or too long will cause a large friction loss).
5. Impeller or pipeline blockage elimination measures: Check for obstacles.
6. The direction of rotation of the device is not correct: Check the direction of rotation.
7. Equipment generates air or inlet lines with leakage elimination measures: Check the inlet line for air pockets and/or air leaks.
8. The packing or seal in the equipment stuffing box is worn out, so that air leaks into the pump casing. Eliminate measures: Check the packing or seal and replace as needed to check if the lubrication is normal.
9. Insufficient suction head when pumping hot or volatile liquids. Eliminate measures: Increase the suction head and consult the manufacturer.
10. The bottom valve of the equipment is too small. Eliminate measures: Install the bottom valve of the correct size.
11. The immersion depth of the bottom valve or inlet pipe of the equipment is not enough. Eliminate the measures: Consult the manufacturer of the externally lubricated heavy oil pump equipment for the correct immersion depth. Use a baffle to eliminate eddy currents
12. Equipment impeller clearance is too large. Eliminate measures: Check if the clearance is correct.
13. Equipment impeller damage elimination measures: Check the impeller and replace it as required.
14. Equipment impeller diameter is too small Elimination measures: Consult the manufacturer for the correct impeller diameter.
15. The pump equipment pressure gauge position is incorrect. Eliminate measures: Check the position is correct, check the outlet nozzle or pipe.
Second, the external lubrication heavy oil pump equipment will stop for a while. 1. The equipment suction stroke is too high. Elimination measures: Check the existing net pressure head (the inlet line is too small or too long will cause great friction loss).
2. Equipment impeller or pipeline is blocked and removed: Check for obstacles.
3. The device generates air or the inlet line has a leakage elimination measure: check the inlet line for air pockets and/or air leakage.
4. The packing or seal in the equipment stuffing box is worn out, allowing air to leak into the pump casing. Eliminate measures: Check the packing or seal and replace as needed. Check that the lubrication is normal.
5. Insufficient suction head when the equipment is pumping hot or volatile liquids. Eliminate measures: Increase the suction head and consult the manufacturer.
6. The immersion depth of the bottom valve or inlet pipe of the equipment is not enough. Measures: Consult the manufacturer of the externally lubricated heavy oil pump equipment for the correct immersion depth and use the baffle to eliminate the eddy current.
7. Equipment oil pump casing seal damage elimination measures: check the gasket and replace it as required.
Third, the external lubrication heavy oil pump equipment power consumption is too large 1. The direction of rotation of the equipment is not correct: check the direction of rotation.
2. Equipment impeller damage elimination measures: Check the impeller and replace it as required.
3. Equipment rotation parts seizure elimination measures: Check whether the gap of the internal wear parts is normal.
4. Equipment shaft bending elimination measures: Straighten the shaft or replace it as required.
5. The device speed is too high. Elimination measures: Check the winding voltage of the motor or the steam pressure delivered to the turbine.
6. The equipment head is lower than the rated value. Too much liquid pumping elimination measures: Consult the manufacturer of the externally lubricated heavy oil pump equipment. Install the throttle valve and cut the impeller.
7. Equipment liquid is heavier than expected. Elimination measures: check the specific gravity and viscosity.
8. The equipment stuffing box does not have the correct packing (insufficient packing, not properly inserted or running, the packing is too tight)
Elimination measures: Check the packing and refill the stuffing box.
9. Equipment bearing lubrication is not correct or bearing processing wear elimination measures: check and replace as required.
10. The running clearance between the wear rings of the equipment is incorrect. Eliminate the measures: Check if the clearance is correct. Replace the wear ring of the oil pump casing and/or impeller as required.
11. The stress on the pipe on the pump casing of the equipment is too large
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Brominated Flame Retardant
Brominated Flame Retardant Chemicals, Brominated Flame Retardant Materials,Decabromodiphenyl Ethane,Substitution Of HBCD,Tetrabromophthalate Diol, Brominated Polystyrene,Tetrabromobisphenol A
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