LNG减压设备

LNG已成为目前无法使用管输天然气供气城市的主要气源或过渡气源.也是许多使用管输天然气供气城市的补充气源或调峰气源。LNG气 化站是一个接收、储存和分配 LNG卫星站.也是城镇或燃气企业把LNG从生产厂家转往用户的中间调节场所。 LNG气化站凭借其建设周 期短以及能迅速满足用气市场需求的优势.己逐渐在我国东南沿海众多经济发达、能源紧缺的中小城市建成，成为供气设施或管输天 然气到达前的过渡供气设施。
　　LNG气化站是将LNG低温储罐（钢瓶、槽车）、空温式气化器；減压阀组、加药装置、计置系统于一体，按照合理的工艺流程总装集成。 结构紧凑，体积小，自动化程度高。
　　Introduction:
　　The LNG has become the main gas source or transition gas source for cities which fail to use the pipeline gas currently, and also is the supplemental gas source or peak load gas source for many cities which use the pipeline gas. The LNG gasification station is a LNG satellite station having receiving, storage and distribution functions, and also an intermediate regulation site for towns or gas enterprises to transfer the LNG from manufacturers to users.
　　The LNG gasification station has been gradually built in many economically developed and energy-deficient medium and small cities in China's South-East coastal areas depending on its advantages including short construction period and quickly meeting the gas market’s demands, becoming a permanent gas supply facility or a transition gas supply facility before arrival of the pipeline gas.
　　The LNG gasification station is generally assembled according to reasonable technology, integrating the LNG low temperature storage tank (cylinder or tanker), air-heated vaporizer, pressure reducing valves, chemical dosing system and metering system. It has features including compact structure, small volume and high automation degree.
　　工艺流程：
　　LNG由槽车运至气化站，利用LNG卸车增压器使槽车内压力增高，将槽车内LNG送至LNG低温储罐内储存。当从LNG储罐外排时，先通过储罐的自增压系统，使储罐压力升高.然后打开储罐液相出口阀，通过压力差将储罐内的LNG送至气化器后，经调压、计量、加臭等工序送入市政燃气管网。当室外环境温度较低，空温式气化器出口的天然气温度低于5℃时，需在空温式气化器出口串联水浴式加热器，对气化后的天然气进行加热。
　　Technological process:
　　The LNG is transported to gasification stations by a tanker. Rise the pressure in the tanker by means of a LNG unloading pressurizer, and deliver the LNG in the tanker to the LNG low temperature storage tank. When the LNG is discharged from the LNG storage tank, rise the pressure in the storage tank by means of the storage tank pressurization system, then open the liquid phase outlet valve of the storage tank, deliver the LNG in the storage tank to the vaporizer through pressure difference and then deliver it to the municipal gas pipeline network by working procedures such as pressure regulation, metering and odorization. When the outdoor ambient temperature is low and the natural gas temperature at the air-heated vaporizer outlet is below 5℃, it is necessary to connect a water bath heater to the air-heated vaporizer outlet to heat the vaporized natural gas.
　　产品特性：
　　1.无能耗、无污染、后期运营成本低；

　　2.设备外形尺寸可供选择；

　　3.优化设计，满足汽化量要求，降低成本，压降小，无偏流；

　　4.设备整体采用铝型材“桥"式连接，美观大方，牢固使用.有效消除因热胀冷缩产生的应力；

　　5.设备所有部件按JB/T2549-94《铝制空气分离设备制造技术规范》及Q/OYN01-2017企业标准制作。
　　6.配置辅热器.保障NG出口温度；

　　7.安全阀起跳压力：0.84 Mpa;

　　8.工作压力：0.02-0.8 Mpa;

　　9.气化能力：20-7000Nm3/h.
　　10.完备的安全保护功能 ，确保设备运行安全可靠。

规格型号
Model LNG-
200 LNG-
300 LNG-
400 LNG-
500 LNG-
600 LNG-
800 LNG-
1000 LNG-
1200 LNG-
1500 LNG-
2000 LNG-
2500 LNG-
3000 LNG-
4000 LNG-
5000 LNG-
5000 LNG-
10000
设计压力
Design Pressure (MPa) 1.6
设计温度
Design Temperature
(℃) 气化前 Before gasification: -196~ +50; 气化后After gasification: -20~ +50;
操作压力
Operating Pressure (MPa) 调压前 Before pressure regulation: < 0.6; 调压后 After pressure regulation: < 0.3;
强度试压
Strength Pressure Test (MPa) 2.4
气密性试压
Airtight Pressure Test (MPa) 1.92
出□压力
Outlet Pressure (MPa) ≤0.4
操作温度
Operating
Temperature (℃) 气化前 Before gasification: -162~ +50; 气化后After gasification: -20~ +50
额定供气
Rated Supply (Nm3/h) 200 300 400 500 600 800 8000 10000
进口尺寸
Inlet Size (mm) 卸车液相□ Unloading liquid phase: DN50; 卸车气相 □ Unloading gas phase: DN40; 卸车增压□ Unloading pressurization: DN32
出口尺寸
Outlet Size (mm) 50 80 80 80 80 100 100 100 100 150 150 150 200 200 250 250
复热器功率
Recuperator Power (KW) 4.5 7.5 7.5 7.5 10.5 12 15 18 22.5 30 37.5 45 60 90 120 150
复紐电压
Recuperative Voltage
(V) 380
加臭机电压 Odorization Machine Voltage (V) 220

外形尺寸Dimensions
规格型号
Model 撬装外形尺寸
Skid-mounted Dimensions: W x L x H (mm) 气化器尺寸
Vaporizer Dimensions (mm) 备注
Remarks
A撬
A pry B撬
B pry C撬
C pry
LNG-200 3300x2000xx 2000x2700 650x230x270 - 气化器成撬
Vaporizer into skid
LNG-300 793x230x270 - 气化器成撬
Vaporizer into skid
LNG-400 895x230x270 - 气化器成撬
Vaporizer into skid
LNG-500 995x230x270 - 气化器成撬
Vaporizer into skid
LNG-600 2200x1800x2000 - 气化器成撬
Vaporizer into skid
LNG-700 3000x1800xx1440x5345 气化器不成撬 Vaporizer not into skid
LNG-800 3000x1800xx1950x5345 气化器不成撬 Vaporizer not into skid
LNG-x2200xx1595x5345 气化器不成撬 Vaporizer not into skid
LNG- x 23000 x x2205 x 5345 气化器不成撬 Vaporizer not into skid
LNG- x1950 x 6545 气化器不成撬 Vaporizer not into skid
LNG- x 2300 x x1950 x 9545 气化器不成撬 Vaporizer not into skid
LNG- x 2300 x x2460 x 9545 气化器不成撬 Vaporizer not into skid
LNG-x3480 x 9545 气化器不成撬 Vaporizer not into skid
LNG-x2300xx3735 x 9545 气化器不成撬 Vaporizer not into skid
LNG-6000 以上气化器组合
Combination of the vaporizers above 气化器不成撬Vaporizer not into skid
LNG-x2300x2700 以上气化器组合
Combination of the vaporizers above 气化器不成撬 Vaporizer not into skid
LNG-10000 以上气化器组合
Combination of the vaporizers above 气化器不成撬 Vaporizer not into skid