What kind of equipment is required for the LNG project?

30m3 buried tank (diesel).

Operating Pressure: Normal pressure.

Operating temperature: room temperature.

Tank size: 2600mmx6200mm50m3 buried tank (gasoline).

Operating Pressure: Normal pressure.

Operating temperature: room temperature.

Displacement: Q=100 500L min

Computer power consumption: n=

Displacement: Q=5 50L min

Computer power consumption: n=

Submersible pump (gasoline).

Displacement: q=260l min

Head: h=20m

Operating temperature: room temperature.

Motor power: n=

Submersible pump (diesel).

Displacement: Q=500L min

Head: h=20m

Operating temperature: room temperature.

Motor power: n=

LNG dosing machine Q=200L min

Measurement accuracy: not less than the grade.

Working pressure: Operating temperature: -162

Design pressure: MPA (in-machine system).

MPA (Hose).

Design temperature: -196

Motor power: Mass flow meter CMF200

Design flow rate: q=200L min

Working pressure: Operating temperature: -162

Motor power: 22kw

LNG Pump Skid (Skid-mounted 2 LNG submersible pumps and tubes.)

channel, automatic control system):

Rated flow: q=200L min

Head: 250m

Design temperature: -196

Design pressure: MPA

Working pressure: Operating temperature: -162

Motor power: 22kw

Vertical LNG storage tank v=60m3

Design pressure: inner and outer cylinders).

Design temperature: -196

Working pressure: Operating temperature: -162

Dimensions: 3mx5m

Air compressor skid (including air compressor, M3 gas cylinder).

Displacement: Motor power: 4kw

BOG heat booster + metering, pressure regulating skid.

BOG Heat Increaser.

Gasification capacity: 100 nm3 h

Working pressure: inlet temperature: t into =-162

Outlet temperature: T out ambient temperature -10

Design pressure: MPA

Design temperature: -196

Metering, pressure regulation.

Metering and pressure regulation capacity: 100nm3 h

Design pressure: MPA

Design temperature: -20

Inlet pressure: MPA

Outlet Pressure: Outlet Temperature: T out Ambient Temperature-10

Supercharger + low pressure EAG heater skid.

Supercharger. Gasification capacity: 300 nm3 h

Working pressure: inlet temperature: t into =-162

Outlet temperature: t out -162

Design pressure: MPA

Design temperature: -196

Low-pressure EAG heater skids.

Gasification capacity: 100 nm3 h

Working pressure: inlet temperature: t into =-162

Outlet temperature: T out ambient temperature -10

Design pressure: MPA

Design temperature: -196

LNG liquefaction plant, or filling station, or receiving station, please give constraints.

The main equipment is: vaporizer, CNG pressure regulating skid, LNG pressure regulating skid, odorization device.

CNG pressure regulating skid.

CNG pressure reducing skid, medium and low pressure gas pressure regulating (metering) box, CNG pressure regulating station, CNG cylinder group, city gate station, manifold, filter, etc., the products are widely used in natural gas, artificial gas, liquefied petroleum gas and other transmission and distribution places.

Gas pressure regulator box.

Gas pressure regulating box is an important part of the gas transmission and distribution system, which has been widely promoted and applied because of its compact structure, small footprint, investment-saving, easy installation and use. The basic configuration in the box includes inlet and outlet valves, filters, pressure regulators and corresponding measuring instruments, and corrugated compensators can also be installed.

Air-temperature vaporizer.

It adopts low-temperature special stainless steel heat exchange tube, compact design, durable, adopts the double-way design of British SPIRAX-SARCO vapor special control valve to ensure uninterrupted continuous use, adopts British SPIRAX-SARCO vapor special injection device, works quieter, no noise and vibration, imported paint, and better surface quality.

Odorizing device. The odorization device converts the current signal of the inductor into a digital converter by the control system, and automatically controls the odorization amount according to the change of gas flow. By setting the frequency, the main equipment in the unit is a diaphragm metering pump, which separates the pump from the odorant to prevent the odorant from leaking.

The LNG refueling station is mainly composed of LNG storage tank, cryogenic hydrocarbon pump, high-pressure air-temperature vaporizer, high-pressure water bath vaporizer, sequential control panel, gas storage well or bottle group, and gas dispenser.

LNG is Liquefied Natural Gas.

Abbreviation for Liquefied Natural Gas. Generally, there are four types: skid-mounted.

type refueling station, standard refueling station, L-CNG refueling station, mobile skid-mounted refueling station.

Advantages of LNG refueling stations

Compared with other energy sources, LNG itself is not limited by the scope of pipeline transportation, and the overall transportation is convenient, which enhances the radiation capacity of the gas station. During the construction of the refueling station, the area is small, and the safety distance of the LNG refueling station is only one-third of that of the CNG refueling station, and the overall area is small. Low construction costs.

The gas station is relatively convenient to operate, and it does not need large-scale power equipment, which can greatly reduce the cost of land and equipment; At the same time, the safety factor during the construction of the gas station.

Higher, the pressure does not exceed when working, compressed natural gas.

The working pressure is as high as 25MPa, and compared with the two, it can be found that the safety of LNG is higher, and only a lower pressure is required to complete the operation.

The above content reference: Encyclopedia - LNG refueling station.

The equipment of LNG gasification station mainly includes cryogenic storage tank, gasifier, electric auxiliary heat, and pressure regulation and metering.

Called cryogenic storage tank, is a vertical or horizontal double-layer vacuum insulation storage tank, the inner tank is made of austenitic stainless steel, the outer container material is selected according to the user area is different, according to the national regulations to select 345R, the inner and outer container interlayer is filled with insulation material pearlescent sand and vacuumed, the product is the State Bureau of Technical Supervision on-site inspection and issued a pressure vessel supervision and inspection certificate.

Air-temperature vaporizer.

The air-temperature vaporizer series uses the natural convection air in the atmospheric environment as the heat source, and extrudes the star-shaped finned tube with the aluminum with good thermal conductivity to exchange heat with the cryogenic liquid and vaporize it into a gas of a certain temperature, without additional power and energy consumption. The equipment is static parts, so its performance is quite stable, simple maintenance, is an efficient, environmentally friendly, energy-saving new generation of heat exchange equipment.

Overview of the performance characteristics and uses of water bath vaporizer:

The water bath vaporizer uses the hot water in the shell to heat and gasify the low-temperature gas immersed in the winding tube inside, so that the outlet gas temperature meets the needs of the user.

It is a kind of equipment that uses hot water and low-temperature liquid gas to exchange heat, so that low-temperature liquid gas is gasified into gaseous gas. It is suitable for liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, liquefied petroleum gas, liquefied natural gas, etc.

The circulating hot water water bath vaporizer directly uses circulating hot water to heat the liquid gas in the coil and vaporize it into gaseous gas. For large enterprises and institutions, under the condition of sufficient hot water, steam or electricity, the use of water bath vaporizer can fully ensure the heat exchange efficiency, and the structure is compact and occupies a small area, which has many advantages.

Pressure regulating metering skid.

Safety is the top priority in the design of LNG pressure regulating skid, in the core equipment of the pressure regulating skid, the most important thing can be described as the safety shut-off valve, also known as the emergency safety shut-off valve, which is installed in the upstream of the pressure regulator, located at the inlet position of the LNG pressure regulating skid, is the safety equipment to cut off the upstream gas by rapid shutdown after a series of safety measures such as the safety valve is released and the pressure regulator action is monitored. It is the last safety barrier to protect the safety of the whole station and avoid downstream overpressure or even the highest level caused by the failure of the voltage regulator. Therefore, it is required to be responsive, cut off quickly, with high reliability and strong anti-external interference ability. Collapse.

It is used for long-distance transportation of natural gas, and is used as a clean fuel for urban residents after vaporization, which has the characteristics of safety, convenience, speed and low pollution.

It is used as a substitute for motor fuel. Using LNG as the fuel of the automobile engine, the engine only needs to make appropriate changes, and the operation is not only safe and reliable, but also low noise and low pollution, especially in today's increasingly strict emission regulations, the exhaust of the car with LNG as the fuel is significantly improved. It is reported by the source:

with compressed natural gas (CNG).

Comparatively, for medium and medium-heavy vehicles, the fuel cost of LNG vehicles is 20% lower and the weight is 2 3 lower, and at the same time, the cost of the combustion system unit is at least 2 3 lower. It can be shown that liquefaction of natural gas and storage and transportation in liquid form is the most cost-effective method to promote its application in transportation fuels.

LNG cold energy utilization. LNG directly uses cold energy to generate electricity (Rankine cycle mode and natural gas direct expansion mode), liquefied separated air (liquid oxygen, liquid nitrogen), frozen warehouse, liquefied carbonic acid, dry ice, air conditioning, etc.;Indirect use includes frozen food, low-temperature shredding waste treatment, freeze preservation, low-temperature medical treatment, food preservation, etc.

The LNG receiving station is an organic whole of many related equipment assemblies, and through the cooperation of these equipment, the LNG transported by sea can be stored in the LNG storage tank and exported to the user through a certain technological process. These equipment include discharge arms, storage tanks, low-pressure transfer pumps, high-pressure transfer pumps, vaporizers, BOG compressors, flare towers, etc. The role of the flare tower is to burn the exhaust gases and at the same time regulate the pressure inside the tank.