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Hot Line:400-0530-636

Tel:+86-530-7355311

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Fax:+86-530-7355311

Add:Heze City, Shandong Province, China

zhongjiepro4
30cbm lpg storage tanks
lpg gas tanks
lpg atnk
LPG TANK

LPG TANK

Installation method: above ground and underground
Allowable working pressure: 1.82MPa
Model specifications: 5m3 to 200m3
zhongjiepro4
30cbm lpg storage tanks
lpg gas tanks
lpg atnk
LPG TANK
Product Description
 1.Product introduction
  Liquefied petroleum gas storage tanks are pressure vessels for storing liquefied petroleum gas(propane)as the main component medium.Its storage medium has a saturated vapor pressure of less than or equal to 1.63 MPa at 50°C and a H2S solubility of less than 7.7 mg/L.Divided into two types of ground storage tanks and underground storage tanks.
 2.Product technology advantages
  The company has established a complete quality assurance system in accordance with the requirements of TSG Z0004-2007"Special Equipment Manufacturing,Installation,Transformation,and Maintenance Quality Assurance System Requirements",compiled quality assurance system documents,appointed quality assurance engineers and the responsibility of each quality control system Division to ensure the stability and improvement of product quality.
  Advantages of raw material supply
  The company has established strategic cooperation relationships with large steel groups such as Shansteel,Ansteel,Handan Iron and Steel,Wugang,etc.The procurement costs have been relatively reduced.More than 80%of the steel plates are fixed-rolled steel plates,and the level II ultrasonic qualification is guaranteed,which ensures the quality of the steel plates.The fixed-rolled steel plates are wide plates with a maximum width of 3700mm,which reduces the weld seam of the cylinder and is more conducive to ensuring product safety performance;The head plate for DN3000 and below basically realizes all fixed rolling.The head is an integral head without splicing welds,which improves the safety performance of the product.
  Manufacturing resource advantages
  The LPG storage tank adopts batch production and assembly line production mode.Through mechanized and highly automated equipment and process tooling,the production efficiency and product quality of the product are improved.The company has added CNC blanking,CNC machining center,CNC coil forming equipment,automatic submerged arc welding machine and other equipment.All longitudinal ring welds are automatically welded to achieve precise manufacturing and high level of quality control.The company has built a 25m×8m×10m gas-fired overall heat treatment furnace,equipped with an automatic control system and multi-channel temperature control equipment,and has an overall heat treatment capacity of 5-200m3 storage tanks.
  Process control advantages
  The company has established a stable process control system in accordance with the current national laws,regulations,standards,etc.Through continuous transformation and upgrading of new technologies and new process methods,the existing level of manufacturing processes has reached a higher level in the industry.Mature manufacturing and inspection methods have been formed at each process stage from material admission,blanking and cutting,barrel forming,group welding butt joints,component assembly,non-destructive testing,heat treatment control,pressure test,anticorrosive coating,etc.Efficiency and quality can be maintained at a high level.

 3.Working principle
  Replacement
  Before the equipment is newly put into use or long-term decommissioning,maintenance,and re-use after relocation,the air in the tank must be replaced(it is strictly forbidden to replace LPG directly without replacement).
  1、Inert gas replacement method.That is,the air in the storage tank is directly replaced(diluted)with an inert gas.The inert gas mentioned here refers to non-flammable and non-combustible non-toxic gas,Such as:nitrogen,carbon dioxide,etc.Taking nitrogen as an example,it is briefly described as follows:Nitrogen is injected into the storage tank from the liquid inlet,and the pressure of the storage tank is increased to 0.6 MPa.After holding the pressure for 10 minutes,the gas is discharged from the sewage outlet.(The tank is always in a positive pressure nitrogen seal to prevent air from entering)Close the drain when the tank pressure drops to 0.2MPa(When venting,the gas-phase port,return port,and liquid outlet end-of-line valves can be opened momentarily,and the air in the pipeline can be removed by the way.)Repeat the above operation three or more times to complete the replacement of the storage tank.If it is replaced by carbon dioxide,the air is taken in from the liquid inlet and the air is taken out from the vent.The operation method is the same as above.This method has good reliability,high safety factor,and great success.This method is generally recommended.
  2、Water replacement method.Replace the air in the tank with water,and then replace the water in the tank with inert gas.That is,water is used as a replacement intermediate medium.The operation process is briefly described as follows:1.Inject water into the storage tank from the sewage outlet.When the water overflows from the vent,the air has been discharged.2.Stop water injection,and then inject nitrogen into the storage tank from the vent,and open the drain port of the storage tank.The water in the storage tank flows out of the drain port under the pressure of nitrogen and its own weight,until the water in the storage tank is drained.3.Close the blowdown valve and continue to fill the tank with nitrogen until the pressure in the tank is 0.2 MPa,and always maintain a positive pressure nitrogen seal in the tank to prevent air from entering again.This method is simple to operate,safe and reliable,and has a short cycle.Note:When replacing with water,the hydrocarbon pump must not enter water.
  3、Unloading operation
  1.After the tanker enters the specified position and centered,turn off the engine,tighten the manual brake,and use triangle wood to prevent the tanker from sliding.
  2、Check whether the tank body,valves,level gauges,pressure gauges and thermometers are normal,and whether the firefighting equipment is in good condition.
  3、The static grounding line of the tank truck and the unloading platform is firmly connected,and the tank truck liquid level is adjusted and recorded with the tank truck escort.
  4、The gas and liquid hoses on the unloading platform are firmly connected to the quick connector of the tank truck.Before sealing,check the sealing rubber ring to ensure that it is in good condition.
  5、The oil pump handle of the tank truck is pressed to increase the oil pressure to 0.3 to 0.4 MPa to open the emergency shut-off valve of the tank truck gas and liquid phases.
  6、Open the bleed angle valve,let out the air in the hose,and close the angle valve after the gas and liquid materials are ejected.
  7、Open the manual gas and liquid valve of the tanker.
  8、Open the tank to all valves on the tanker's liquid line.
  9、Air is supplied to the gas-phase port of the storage tank by a pneumatic shut-off valve so that it is in the open position,so that the gas-phase port of the storage tank communicates with the gas-phase port of the tanker.
  10、After checking to confirm,open unloading pumps,liquefied petroleum gas into the tank,in unloading tankers state.
  11、During the unloading process,it is strictly forbidden to overfill the storage tank,the unloading speed should not be too fast,and the pressure difference between the tank car and the storage tank should not exceed 0.2MPa。
  12、After the unloading,stop the unloading pump,close the storage tank gas and liquid phase valves,and manually operate the solenoid valve to make the gas phase emergency shut off and return to the closed state.Close the tank truck emergency shut-off valve and gas-liquid valve.
  13、Open the exhaust valve of the tank truck to exhaust the residual gas in the dump truck hose.
  14、Remove the hose,disassemble the static ground wire of the tank truck and the loading and unloading platform,and close the tank truck operation box.
  15、Check the liquid level after unloading and sign the unloading operation record with the escort.
  16、Check the site and start driving after 5 to 10 minutes of ventilation.
  17、In the event of thunderstorms,nearby fires,gas leaks,abnormal pressures,and other unsafe factors,loading and unloading operations should be stopped immediately.
  Filling operation
  1、Open all valves in the liquid phase pipeline from the liquid outlet to the dispenser and open all valves in the return line.
  2、The pneumatic cut-off valve gas at the liquid port is given so that it is in the open position,so that the liquefied petroleum gas in the storage tank communicates with the filling pump.
  3、After confirming the status of each valve,turn on the filling pump.
  4、According to the working state of the dispenser,determine whether the return line is in working state.(When the amount of dispenser is small,the pressure will cause the safety return valve to open and return to the storage tank through the return line).
  5、For specific car refueling operations,refer to the refueling machine operation guide.
  6、Stop the filling pump after filling.If the gas is not refilled for a long time,the emergency shut-off valve of the liquid outlet should be closed.

 4、Model parameters
LPG Tank Parameters Table
No Name Body specifications / head wall thickness(mm) Material Net Weight
(kg)
Total Length
(mm)
Anchor bolt specifications(Specifications / length / width mm) Level gauge center distance(mm) Safety valve specifications(DNmm)
1 LPG Tank WG 1.77-1200-5 DN1200×3980×8/8(6.8) Q345R 1595 4663 4×M20/3200/720 1400 50
2 LPG Tank WG 1.77-1400-5 DN1400×2740×10/10(8.7) Q345R 1780 3535 4×M20/1950/840 1600 50
3 LPG Tank WG 1.77-1400-10 DN1400×5980×10/10(8.7) Q345R 2925 6775 4×M20/5180/840 1600 65
4 LPG Tank WG 1.77-1600-10 DN1600×4400×10/10(8.8) Q345R 2760 5295 4×M24/3400/960 1800 65
5 LPG Tank WG 1.77-1800-15 DN1800×5250×12/12(10.7) Q345R 4230 6247 4×M24/4300/1120 2000 80
6 LPG Tank WG 1.77-2000-20 DN2000×5650×12/12(10.7) Q345R 5025 6747 4×M24/4730/1260 2200 80
7 LPG Tank WG 1.77-2000-25 DN2000×7250×12/12(10.7) Q345R 5980 8347 4×M24/6330/1260 2200 80
8 LPG Tank WG 1.77-2200-25 DN2200×5770×12/14(12.7) Q345R 5910 6999 4×M30/4600/1380 2400 80
9 LPG Tank WG 1.77-2000-30 DN2000×8840×12/12(10.7) Q345R 6935 9937 4×M24/7900/1260 2200 100
10 LPG Tank WG 1.77-2200-30 DN2200×7080×12/14(12.7) Q345R 6760 8314 4×M30/5900/1380 2400 80
11 LPG Tank WG 1.77-2400-30 DN2400×5760×14/14(12.7) Q345R 7200 7094 4×M30/4500/1520 2600 80
12 LPG Tank WG 1.77-2400-40 DN2400×7970×14/14(12.7) Q345R 9055 9304 4×M30/6600/1520 2600 100
13 LPG Tank WG 1.77-2600-40 DN2600×6590×14/16(14) Q345R 9020 8026 4×M30/5200/1640 2800 100
14 LPG Tank WG 1.77-2400-50 DN2400×10180×14/14(12.7) Q345R 10905 11514 4×M30/8800/1520 2600 100
15 LPG Tank WG 1.77-2600-50 DN2600×8480×14/16(14) Q345R 10735 9916 4×M30/7100/1640 2800 100
16 LPG Tank WG 1.77-2600-50(B) DN2600×8480×14/14(13.6) Q345R 10615 9916 4×M30/7100/1640 2800 100
17 LPG Tank WG 1.77-2800-50 DN2800×7110×16/16(14.6) Q345R 11335 8646 4×M30/5710/1800 3000 100
18 LPG Tank WG 1.77-3000-50 DN3000×6000×16/18(16) Q345R 11575 7638 8×M30/4600/1940 3200 100
19 LPG Tank WG 1.77-2600-60 DN2600×10360×14/16(14) Q345R 12440 11796 4×M30/8960/1640 2800 100
20 LPG Tank WG 1.77-2800-60 DN2800×8740×16/16(14.6) Q345R 13165 10276 4×M30/7340/1800 3000 100
21 LPG Tank WG 1.77-2800-80 DN2800×11980×16/16(14.6) Q345R 17125 13516 4×M30/10000/1800 3000 80×2
22 LPG Tank WG 1.77-3000-80 DN3000×10240×16/18(16) Q345R 16985 11878 8×M30/8850/1940 3200 80×2
23 LPG Tank WG 1.77-3200-80 DN3200×8800×18/18(16.8) Q345R 17865 10548 8×M30/7400/2100 3400 80×2
24 LPG Tank WG 1.77-2800-100 DN2800×15230×16/16(14.6) Q345R 20740 16766 4×M30/13000/1800 3000 80×2
25 LPG Tank WG 1.77-3000-100 DN3000×13070×16/18(16) Q345R 20375 14708 8×M30/11500/1940 3200 80×2
26 LPG Tank WG 1.77-3000-100(C) DN3000×13070×16/18(16) Q345R 20015 14708 8×M30/11500/1940 3200 80×2
27 LPG Tank WG 1.77-3200-100 DN3200×11290×18/18(16.8) Q345R 21435 13028 8×M30/9800/2100 3400 80×2
28 LPG Tank WG 1.77-3400-100 DN3400×9810×20/20(18) Q345R 22835 11660 8×M30/8400/2200 3600 80×2
29 LPG Tank WG 1.77-3600-100 DN3600×8550×20/22(20) Q345R 22600 10492 8×M30/7000/2360 3800 80×2
30 LPG Tank WG 1.77-3600-120 DN3600×10510×20/22(20) Q345R 26100 12452 8×M30/8900/2360 3800 80×2
31 LPG Tank WG 1.77-3600-150 DN3600×13460×20/22(20) Q345R 31390 15402 8×M30/11900/2360 3800 100×2
32 LPG Tank WG 1.77-3800-200 DN3800×16290×22/22(20) Q345R 42045 18332 8×M30/14400/2500 4000 100×2
 
LPG residual liquid storage tank Parameters Table
No Name Body specifications / head wall thickness(mm) Material Net Weight
(kg)
Total Length
(mm)
Anchor bolt specifications(Specifications / length / width mm) Level gauge center distance(mm) Safety valve specifications(DNmm)
1 LPG residual liquid storage tank WCG 1.77-1200-5 DN1200×3980×8/8(6.8) Q345R 1595 4663 4×M20/3200/720 1400 50
2 LPG residual liquid storage tank WCG 1.77-1400-5 DN1400×2740×10/10(8.7) Q345R 1780 3535 4×M20/1950/840 1600 50
3 LPG residual liquid storage tank WCG 1.77-1400-10 DN1400×5980×10/10(8.7) Q345R 2925 6775 4×M20/5180/840 1600 65
4 LPG residual liquid storage tank WCG 1.77-1600-10 DN1600×4400×10/10(8.8) Q345R 2760 5295 4×M24/3400/960 1800 65
5 LPG residual liquid storage tank WCG 1.77-1800-15 DN1800×5250×12/12(10.7) Q345R 4230 6247 4×M24/4300/1120 2000 80
6 LPG residual liquid storage tank WCG 1.77-2000-20 DN2000×5650×12/12(10.7) Q345R 5025 6747 4×M24/4730/1260 2200 80
7 LPG residual liquid storage tank WCG 1.77-2000-25 DN2000×7250×12/12(10.7) Q345R 5980 8347 4×M24/6330/1260 2200 80
8 LPG residual liquid storage tank WCG 1.77-2200-30 DN2200×7080×12/14(12.7) Q345R 6760 8314 4×M30/5900/1380 2400 80
9 LPG residual liquid storage tank WCG 1.77-2400-30 DN2400×5760×14/14(12.7) Q345R 7200 7094 4×M30/4500/1520 2600 80
10 LPG residual liquid storage tank WCG 1.77-2400-50 DN2400×10180×14/14(12.7) Q345R 10905 11514 4×M30/8800/1520 2600 100
11 LPG residual liquid storage tank WCG 1.77-2600-50 DN2600×8480×14/16(14) Q345R 10735 9916 4×M30/7100/1640 2800 100
12 LPG residual liquid storage tank WCG 1.77-2600-50 DN2600×8480×14/14(13.6) Q345R 10615 9914 4×M30/7100/1640 2800 100
 
LPG underground storage tank Parameters Table
No Name Body specifications / head wall thickness(mm) Material Net Weight
(kg)
Total Length
(mm)
Anchor bolt specifications(Specifications / length / width mm) Safety valve specifications(DNmm)
1 LPG underground storage tank WDG 1.77-1400-5 DN1400×2740×10/10(8.7) Q345R 2305 3510 4×M20/2050/840 40
2 LPG underground storage tank WDG 1.77-1600-10 DN1600×4400×10/10(8.8) Q345R 3265 5270 4×M24/3700/960 40
3 LPG underground storage tank WDG 1.77-1800-15 DN1800×5250×12/12(10.7) Q345R 4795 6224 4×M24/4250/1120 40
4 LPG underground storage tank WDG 1.77-2000-20 DN2000×5650×12/12(10.7) Q345R 5565 6724 4×M24/4710/1260 40
5 LPG underground storage tank WDG 1.77-2200-25 DN2200×5770×12/14(12.7) Q345R 6470 6978 4×M30/4800/1380 50
6 LPG underground storage tank WDG 1.77-2200-30 DN2200×7080×12/14(12.7) Q345R 7315 8288 4×M30/6100/1380 50
7 LPG underground storage tank WDG 1.77-2400-30 DN2400×5760×14/14(12.7) Q345R 7765 7068 4×M30/4600/1520 50
8 LPG underground storage tank WDG 1.77-2600-40 DN2600×6590×14/16(14) Q345R 9600 8002 4×M30/5200/1640 50
9 LPG underground storage tank WDG 1.77-2400-50 DN2400×10180×14/14(12.7) Q345R 11440 11488 4×M30/7200/1520 50
10 LPG underground storage tank WDG 1.77-2600-50 DN2600×8480×14/16(14) Q345R 11305 9892 4×M30/7100/1640 50
11 LPG underground storage tank WDG 1.77-2800-50 DN2800×7110×16/16(14.6) Q345R 11920 8622 4×M30/5810/1800 50
12 LPG underground storage tank WDG 1.77-2800-60 DN2800×8740×16/16(14.6) Q345R 13735 10252 4×M30/7440/1800 65
13 LPG underground storage tank WDG 1.77-3000-100 DN3000×13070×16/18(16) Q345R 20640 14686 8×M30/11500/1940 65
14 LPG underground storage tank WDG 1.77-3200-100 DN3200×11290×18/18(16.8) Q345R 21695 13006 8×M30/9800/2100 65
15 LPG underground storage tank WDG 1.77-2600-50(B) DN2600×8480×14/14(13.6) Q345R 11185 9888 4×M30/7100/1640 50
16 LPG underground storage tank WCDG 1.77-2000-20 DN2000×5650×12/12(10.7) Q345R 5565 6724 4×M24/4710/1260 40
17 LPG underground storage tank WCDG 1.77-2200-30 DN2200×7080×12/14(12.7) Q345R 7315 8288 4×M30/6100/1380 50
18 LPG underground storage tank WCDG 1.77-2600-50 DN2600×8480×14/14(13.6) Q345R 11185 9888 4×M30/7100/1640 50
 5.Applicable industry
  The customer base of LPG storage tanks is LPG stations throughout the country.
  The customers of liquid ammonia storage tanks and liquid chlorine storage tanks are chemical plants.
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