CN210398384U

CN210398384U - LNG peak shaving device

Info

Publication number: CN210398384U
Application number: CN201921391559.6U
Authority: CN
Inventors: 王飞; 陈宸; 张国栋; 巢昆; 孙梦婷
Original assignee: Qingdao University of Science and Technology
Current assignee: Qingdao University of Science and Technology
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-04-24
Anticipated expiration: 2029-08-26

Abstract

The utility model belongs to the technical field of NG peak regulation, and relates to an LNG peak regulation device, which comprises an LNG storage tank, an immersed pump, an outward conveying pump, a first heat exchanger, a second heat exchanger, a reaction kettle, an injection reactor, a hydrocyclone separator, a first compressor, a seawater heat exchanger, an NGH collector, a first pump, a precooler, a second pump, a contraction port and a liquid distributor, the diaphragm frame, the gas distributor, the diffusion room, the next door orifice plate, the inner tube, the urceolus, a valve, a manometer, No. two valves, No. two manometers, No. three valves, No. three manometers, the freezer, No. two compressors, its simple structure of pipe network and heat pipe, utilize LNG gasification to become the cold energy of NG release and carry out the cold insulation, utilize the geothermolysis NGH that the heat pipe mined, it is moderate to replace traditional utilization hot water decomposition NGH, utilize dispersed, volume's NGH collector and concentrated, huge freezer has NGH's distributing type and centralized storage concurrently.

Description

LNG peak shaving device

The technical field is as follows:

the utility model belongs to the technical field of NG (natural gas) peak regulation equipment, concretely relates to LNG (liquefied natural gas) peak regulation device with NGH (natural gas hydrate) as medium.

Background art:

liquefied Natural Gas (LNG), whose main component is methane, is known as the cleanest fossil energy on earth. The liquefied natural gas is colorless, tasteless, nontoxic and noncorrosive, the volume of the liquefied natural gas is about 1/625 of the volume of the same amount of gaseous natural gas, and the mass of the liquefied natural gas is only about 45 percent of the water with the same volume; the manufacturing process comprises purifying natural gas produced in a gas field, liquefying at a series of ultralow temperatures, and transporting by a liquefied natural gas carrier. After the liquefied natural gas is combusted, the pollution to the air is very small, and the heat emitted by the liquefied natural gas is large, so the liquefied natural gas is a relatively advanced energy source. The liquefied natural gas is liquid after being compressed and cooled to the boiling point (-161.5 ℃), and is usually stored in a low-temperature storage tank at-161.5 ℃ and about 0.1 MPa. The main component of the methane is methane, and the methane is transported by a special ship or an oil tank truck and is gasified again when in use. Since the 70 s of the 20 th century, the world production and trade volume of liquefied natural gas has increased rapidly, and in 2005, the international trade volume of LNG reaches 1888.1 billion cubic meters, the largest export country is indonesia, and the export 314.6 billion cubic meters; the largest importing country is 763.2 billion cubic meters in japan.

NGH, a non-conventional fossil energy source widely existing on the seabed and in frozen earth zones, can be produced in high-pressure and low-temperature environments. Theoretically, 165 times of methane can be released by NGH in unit volume, and meanwhile, NGH can be stored for a long time at low temperature (-15 ℃, which is far higher than the low-temperature environment-162 ℃ required by LNG storage) and normal pressure and only be decomposed in a trace manner. This theoretically suggests that reacting NG with water at high pressure and low temperature to produce NGH and storing it at low temperature, decomposing NGH at the time of NG peak demand and outputting NG has a high economic value.

From the city NG usage, 6 months to 10 monthsThe LNG consumption is low in peak periods, and the LNG price is relatively low in this period compared to other periods. If a large amount of LNG is imported at the moment, the LNG is gasified to form NG and reacts with water to form NGH, and then the NGH is stored until the peak load of the NGH is reached in autumn and winter, and the NGH is decomposed and released for peak regulation of the NG, so that the method has great economic benefit. The storage condition of NGH is milder than that of LNG, only low-temperature and normal-pressure environment is needed, and the storage cost of LNG is far higher than that of NGH within the storage period of several months. Meanwhile, in the storage process of LNG, a large amount of BOG (flash vapor) is generated due to incomplete heat insulation of equipment, and the storage cost is very high due to the fact that a high-energy-consumption compressor is needed to do a large amount of work and the cooling cost of cooling the BOG is added to the process of recovering the BOG. The NGH storage is utilized, even if the equipment is also not completely insulated, the NG and ice formed after the surface NGH is decomposed play a role in protecting the NGH in the inner layer, and the complexity of the NGH storage process is greatly reduced. In addition, from the aspect of safety, when the LNG storage tank leaks, a large amount of LNG is gasified and expanded to form NG, which is dangerous, and NGH has intrinsically safe storage performance, the basic reason is that gas methane molecules are blocked by hydrogen bond skeletons formed by water molecules, and if gas molecules are released, the hydrogen bond skeletons of water must be destroyed, so that the NGH has a latent heat of melting of 0.5-0.6kJ per gram of water and much higher than 0.335kJ per gram of ice, so that the NGH needs a large amount of heat to be decomposed. Furthermore, the thermal conductivity of NGH is only 0.5 W.m^-1·K^-1Thermal conductivity much lower than that of ice by 2.23 W.m^-1·K^-1Even if the NGH is exposed to normal pressure and normal temperature and is influenced by low heat conductivity, the decomposition and gas release rate of the NGH is slow, and the NGH also presents a slow situation under the condition of combustion, thereby fundamentally solving the problem that LNG leakage can cause explosion. Therefore, the method for gasifying LNG to form NG and simultaneously reacting with water to generate NGH for storage is an intrinsically safe method, and the device for preparing liquefied natural gas by using compressed natural gas disclosed in Chinese patent 201410403899.1 consists of a primary heat exchange system, a secondary heat exchange system and an expansion refrigeration system; the first-stage heat exchange system comprises a first-stage refrigerator, a first-stage heat exchange tube and a first-stage heat exchanger body, wherein a compressed natural gas inlet pipeline is respectively communicated with the first-stage refrigerator and the first-stage heat exchange tube through pipelinesThe pipeline is provided with a valve; the secondary heat exchanger system comprises a secondary refrigerator, a secondary heat exchange tube and a secondary heat exchanger body, and compressed natural gas flowing out of the primary heat exchange system is respectively connected with the secondary refrigerator and the secondary heat exchange tube through pipelines; the primary refrigerator and the secondary refrigerator are respectively connected with a low-pressure natural gas outlet through pipelines; the expansion refrigeration system comprises a throttle valve, an expansion refrigerator and a liquefied natural gas separator, wherein low-temperature compressed natural gas flowing out of the secondary heat exchange tube is connected with the liquefied natural gas separator through a pipeline, the throttle valve and the expansion refrigerator are arranged on the pipeline, low-pressure liquid natural gas obtained through expansion cooling is connected with a liquefied natural gas outlet through the pipeline, and the low-temperature low-pressure natural gas is connected with the primary heat exchanger body through the pipeline; the peak regulation device for liquefied natural gas storage disclosed in chinese patent 201520858620.9 comprises a liquefied natural gas storage tank, wherein an air pipe loop is arranged on the liquefied natural gas storage tank, and a natural gas compressor and a first throttle valve are installed on the air pipe loop; an air pipeline is arranged outside the liquefied natural gas storage tank, the air pipeline penetrates through the energy storage tank, low-temperature liquid with the temperature not higher than 0 ℃ is filled in the energy storage tank, the air pipeline in the energy storage tank exchanges heat through a vaporization heat exchanger, two ends of the air pipeline are branched into an air inlet branch pipe and an air outlet branch pipe, an air inlet electromagnetic valve is arranged on an air inlet branch pipe close to the liquefied natural gas storage tank, a liquefied natural gas pump and a first air outlet electromagnetic valve are arranged on an air outlet branch pipe close to the liquefied natural gas storage tank, a second throttle valve is arranged on the air inlet branch pipe at the other end of the air duct, the air outlet branch pipe at the other end of the air duct is connected with a city pipe network, the air outlet branch pipe is provided with a second air outlet electromagnetic valve and an electric contact pressure gauge, a relay switch is arranged on a circuit of the electric contact pressure gauge, and the relay switch is connected with the liquefied natural gas pump, all the air inlet electromagnetic valves and the air outlet electromagnetic valves through circuits; it does not take full advantage of the storage performance of NGH. Therefore, an LNG peak shaving device taking NGH as a medium is developed and designed, and the storage performance advantage of the NGH is fully exerted and utilized.

The invention content is as follows:

the utility model aims to overcome the shortcoming that prior art exists, research and development design LNG peak shaving device realizes the serialization that the LNG conversion generated NGH, simultaneously, utilizes the cold energy of release when LNG gasification generates NG to keep cold for freezer and tertiary reactor.

In order to achieve the purpose, the main structure of the LNG peak shaving device comprises an LNG storage tank, an immersed pump, an outward conveying pump, a heat exchanger II, a reaction kettle, an injection reactor, a hydrocyclone separator, a compressor I, a seawater heat exchanger, an NGH collector, a pump I, a precooler, a pump II, a contraction port, a liquid distributor, a clapboard frame, a gas distributor, a diffusion chamber, a dividing wall pore plate, an inner cylinder, an outer cylinder, a valve I, a pressure gauge II, a valve III, a pressure gauge III, a refrigeration house, a compressor II, a pipe network and a heat pipe; the LNG storage tank is internally provided with an immersed pump which is connected with an outward conveying pump, the outward conveying pump is connected with a first heat exchanger, the first heat exchanger is connected with a second heat exchanger, the second heat exchanger is respectively connected with a reaction kettle, a jet reactor, a hydrocyclone separator, a first compressor and a seawater heat exchanger, the hydrocyclone separator is respectively connected with an NGH collector and a first pump, the first pump is connected with the reaction kettle, the first compressor is connected with a precooler, the precooler is connected with the reaction kettle, the seawater heat exchanger is respectively connected with the reaction kettle and the second pump, the reaction kettle is connected with the jet reactor through a contraction port, the reaction kettle is internally provided with a liquid distributor, a partition frame and a gas distributor, the liquid distributor is positioned at the upper part, the partition frame is positioned at the middle part, the gas distributor is positioned at the lower part, the jet reactor is internally provided with a diffusion chamber, the jet reactor is connected with the hydrocyclone separator through the diffusion, the interior of the hydrocyclone is divided into an inner cylinder and an outer cylinder by a partition wall pore plate; be provided with the valve No. one between No. two heat exchangers and the injection reactor, be provided with the manometer No. one between valve and the injection reactor, be provided with the valve No. two between No. two heat exchangers and the hydrocyclone separator, be provided with the manometer No. two between No. two valves and the hydrocyclone separator, be provided with the valve No. three between No. two heat exchangers and the compressor, be provided with the manometer No. three between No. three valve and the reation kettle, the freezer that independently sets up is connected with the heat exchanger No. one, the freezer passes through compressor No. two and pipe network intercommunication, the outside and the heat pipe of freezer are connected.

The reaction kettle, the injection reactor and the hydrocyclone separator of the utility model form a three-stage reaction vessel; the partition frame equally divides the internal space of the reaction kettle into unit reaction spaces, each unit reaction space is provided with a staggered half-segmental tower plate, the tower plates are provided with vent holes, a liquid distributor and a gas distributor respectively uniformly distribute liquid materials and a first strand of gas materials and then send the first strand of gas materials into the unit reaction spaces, the liquid materials flow through the surfaces of the tower plates, the first strand of gas materials is contacted with the liquid materials through the vent holes, a gas-liquid interface is continuously updated to provide a heat and mass transfer interface for the full mixing reaction of the liquid materials and the first strand of gas materials, the amplification effect when NGH is generated is reduced, and the number of the partitions, the height of the tower plates and the number of the vent holes of the partition frame are selected according to the capacity of the reaction kettle and the viscosity; the first valve, the second valve and the third valve are self-operated regulating valves, and are used for regulating the flow of the second strand of gas material, the third strand of gas material and the first strand of gas material respectively; the first pressure gauge, the second pressure gauge and the third pressure gauge are used for measuring the pressure of the jet reactor, the hydrocyclone and the reaction kettle respectively.

Compared with the prior art, the utility model adopts three-stage reaction, and the cold energy and the pressure are utilized between the steps, thereby greatly improving the utilization rate of the accelerator solution while reducing the water content of the hydrate slurry, obviously improving the reaction efficiency of single circulation and obviously reducing the energy consumption of unit productivity; the LNG cold storage device is simple in structure, cold energy released by the LNG gasified into the NG is used for cold insulation, the NGH is decomposed by utilizing the heat pipe mined geothermol power, the traditional NGH is decomposed by utilizing hot water, and the distributed and concentrated NGH collectors with moderate volume and the refrigeration storage with large volume have the distributed and concentrated storage of the NGH, so that the continuity of the process of generating the NGH by the LNG conversion is realized.

Description of the drawings:

fig. 1 is a schematic diagram of the main structure principle of the present invention.

Fig. 2 is a schematic structural diagram of the partition frame according to the present invention.

FIG. 3 is a schematic structural view of a tray according to the present invention.

Fig. 4 is a schematic structural diagram of a hydrocyclone according to the present invention.

Fig. 5 is a schematic diagram of the spraying direction of the hydrate slurry with low water content and the third gas material according to the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following examples and accompanying drawings.

Example 1:

the main structure of the LNG peak shaving device related to this embodiment includes an LNG storage tank 1, an immersed pump 2, an outward delivery pump 3, a first heat exchanger 4, a second heat exchanger 5, a reaction kettle 6, an injection reactor 7, a hydrocyclone separator 8, a first compressor 9, a seawater heat exchanger 10, an NGH collector 11, a first pump 12, a precooler 13, a second pump 14, a contraction port 15, a liquid distributor 16, a partition frame 17, a gas distributor 18, a diffusion chamber 19, a partition orifice plate 20, an inner cylinder 21, an outer cylinder 22, a first valve 23, a first pressure gauge 24, a second valve 25, a second pressure gauge 26, a third valve 27, a third pressure gauge 28, a refrigeration storage 29, a second compressor 30, a pipe network 31 and a heat pipe 32; an immersed pump 2 is arranged in an LNG storage tank 1, the immersed pump 2 is connected with an outward conveying pump 3, the outward conveying pump 3 is connected with a first heat exchanger 4, the first heat exchanger 4 is connected with a second heat exchanger 5, the second heat exchanger 5 is respectively connected with a reaction kettle 6, a jet reactor 7, a hydrocyclone separator 8, a first compressor 9 and a seawater heat exchanger 10, the hydrocyclone separator 8 is respectively connected with an NGH collector 11 and a first pump 12, the first pump 12 is connected with the reaction kettle 6, the first compressor 9 is connected with a precooler 13, the precooler 13 is connected with the reaction kettle 6, the seawater heat exchanger 10 is respectively connected with the reaction kettle 6 and a second pump 14, the reaction kettle 6 is connected with the jet reactor 7 through a contraction port 15, a liquid distributor 16, a partition frame 17 and a gas distributor 18 are arranged in the reaction kettle 6, the liquid distributor 16 is positioned at the upper part, the partition frame 17 is positioned at the middle part, the gas distributor 18 is positioned at the lower part, the interior of the injection reactor 7 is provided with a diffusion chamber 19, the injection reactor 7 is connected with a hydrocyclone 8 through the diffusion chamber 19, and the interior of the hydrocyclone 8 is divided into an inner cylinder 21 and an outer cylinder 22 by a partition wall pore plate 20; be provided with valve 23 between No. two heat exchanger 5 and the injection reactor 7, be provided with pressure gauge 24 between valve 23 and the injection reactor 7, be provided with valve 25 between No. two heat exchanger 5 and the hydrocyclone separator 8, be provided with pressure gauge 26 between valve 25 and the hydrocyclone separator 8, be provided with valve 27 No. two between No. 5 heat exchanger and the compressor 9, be provided with pressure gauge 28 No. three between valve 27 No. three and reation kettle 6, freezer 29 and the heat exchanger 4 of independent setting are connected, freezer 29 communicates with pipe network 31 through compressor 30 No. two, freezer 29's outside is connected with heat pipe 32.

The temperature of the reaction kettle 6, the jet reactor 7 and the hydrocyclone 8 related to the embodiment is-2 ℃, the pressure of the reaction kettle 6 is 6MPa, the pressure of the jet reactor 7 is 5MPa, and the pressure of the hydrocyclone 8 is 3MPa, and the jet reactor 7 is a liquid jet circulation type reactor; the partition frame 17 is formed by inserting six partitions.

The reaction kettle 6 and the refrigeration house 29 related to the embodiment adopt two heat exchange modes of an inner coil pipe or an outer jacket; the jet reactor 7 and the hydrocyclone 8 adopt an external jacket mode for heat exchange.

Example 2:

when the LNG peak shaving device that this embodiment relates to uses:

LNG stored in an LNG storage tank 1 is boosted by an immersed pump 2 and an outward delivery pump 3 and enters a first heat exchanger 4, the first heat exchanger 4 conveys cold energy of the LNG to a refrigeration house 29 in two ways, the temperatures of the cold energy in the two ways are-30 ℃ and-25 ℃, the temperature of the refrigeration house 29 is maintained at-20 ℃, the LNG is changed into low-temperature gaseous NG after passing through the first heat exchanger 4, the low-temperature gaseous NG enters the second heat exchanger 5, cold energy of the low-temperature gaseous NG enters the seawater heat exchanger 10 from the second heat exchanger 5, passes through the precooler 13, enters from the bottom of the hydrocyclone 8, passes through the hydrocyclone 8, the injection reactor 7 and the reaction kettle 6, and returns to the second heat exchanger 5 after coming out from the top of the reaction kettle 6 to form a refrigerant circulating chain, so that low-temperature process conditions of 2 ℃ are provided for a three-stage reaction container formed by the hydrocyclone 8, the injection reactor 7 and the reaction kettle 6; the low-temperature gaseous NG passes through a second heat exchanger 5 and then is distributed into three gas materials through a four-way valve;

the seawater is pressurized by a second pump 14 and then enters a seawater heat exchanger 10 to be cooled into fresh water at the temperature of 2 ℃, the fresh water is mixed with unreacted water in a hydrocyclone 8 pumped by a first pump 12 to form a liquid material entering the top of a reaction kettle 6, the liquid material is uniformly distributed in a unit reaction space through a liquid distributor 16, meanwhile, the liquid material is compressed to a set pressure through a first compressor 9, a first strand of gas material entering the reaction kettle 6 after being subjected to heat exchange to a set temperature through a precooler 13 is uniformly distributed in the unit reaction space through a gas distributor 18, the liquid material transversely flows through a tower plate, the first strand of gas material passes through a vent hole, the liquid material and the first strand of gas material react to generate high-pressure hydrate slurry containing a large amount of water, and the high-pressure hydrate slurry is pressed into an injection reactor 7 through a contraction port 15 by the pressure of the reaction kettle; the flow of the first strand of gas material is controlled by a third valve 27 according to the pressure of the reaction kettle 6;

a second gas material is taken as a passive fluid and is sucked into the injection reactor 7 by the high-pressure hydrate slurry, the high-pressure hydrate slurry is taken as a high-pressure active driving passive fluid to be injected into the diffusion chamber 26 in a diffusion chamber 19 of the injection reactor 7 to form slurry-like pellets surrounded by the second gas material, a gas-liquid interface is continuously updated, the second gas material and the slurry-like pellets react to form hydrate slurry with low water content, and the flow rate of the second gas material is controlled by a first valve 23 according to the pressure of the diffusion chamber 26;

injecting low-water-content hydrate slurry into a hydrocyclone 8 in a tangential direction, simultaneously injecting a third gas material into the hydrocyclone 8 in a tangential direction at an angle perpendicular to the injection direction of the low-water-content hydrate slurry, wherein most of water in the low-water-content hydrate slurry is turbulently mixed with the third gas material to form NGH, the NGH rotates to the bottom of the hydrocyclone 8 along an inner cylinder 21 and then enters an NGH collector 11, the NGH collector 11 is transported to a refrigeration house 29 for centralized storage after being fully collected, unreacted water in the low-water-content hydrate slurry is rotationally distributed to the bottom of an outer cylinder 22 through a partition wall pore plate 20, is extracted by a first pump 12, is combined with fresh water which is extracted by a second pump 14 and is subjected to heat exchange through a seawater heat exchanger 10 to a set temperature, and then enters the top of a reaction kettle 6 to serve as a liquid material to continuously react with the first gas material; the flow rate of the third gas material is controlled by a second valve 25 according to the pressure of the inner cylinder 21 of the hydrocyclone 8;

when the gas consumption peak, close the connection of heat exchanger 4 and freezer 29, open heat pipe 32, heat pipe 32 changes geothermal energy into fluidic internal energy in heat pipe 32, and fluidic internal energy heats freezer 29 in the heat pipe 32, opens NGH collector 11, and NGH decomposes release NG, and NG gets into pipe network 31 after being compressed to the pressure rating of settlement by No. two compressors 30.

The baffle frame 17 in the first-stage reaction kettle 6 related in the embodiment obviously reduces the amplification effect when high-pressure hydrate slurry is generated, the height of the tower plate and the number and the size of the vent holes provide flow guarantee for the high-pressure hydrate slurry, the blockage is avoided, the second-stage injection reactor 7 fully utilizes the high pressure of the high-pressure hydrate slurry to provide a good gas-liquid contact interface, and the third-stage hydrocyclone 8 utilizes the tangential contact of a third gas material and the low-water-content hydrate slurry to provide the update of the gas-liquid interface, so that two phases are fully turbulent, and the reaction and separation functions are coupled.

Claims

1. An LNG peak shaving device is characterized in that the main structure of the LNG peak shaving device comprises an LNG storage tank, an immersed pump, an outward conveying pump, a first heat exchanger, a second heat exchanger, a reaction kettle, an injection reactor, a hydrocyclone separator, a first compressor, a seawater heat exchanger, an NGH collector, a first pump, a precooler, a second pump, a contraction port, a liquid distributor, a partition plate frame, a gas distributor, a diffusion chamber, a partition wall pore plate, an inner cylinder, an outer cylinder, a first valve, a first pressure gauge, a second valve, a second pressure gauge, a third valve, a third pressure gauge, a refrigeration house, a second compressor, a pipe network and a heat pipe; the LNG storage tank is internally provided with an immersed pump which is connected with an outward conveying pump, the outward conveying pump is connected with a first heat exchanger, the first heat exchanger is connected with a second heat exchanger, the second heat exchanger is respectively connected with a reaction kettle, a jet reactor, a hydrocyclone separator, a first compressor and a seawater heat exchanger, the hydrocyclone separator is respectively connected with an NGH collector and a first pump, the first pump is connected with the reaction kettle, the first compressor is connected with a precooler, the precooler is connected with the reaction kettle, the seawater heat exchanger is respectively connected with the reaction kettle and the second pump, the reaction kettle is connected with the jet reactor through a contraction port, the reaction kettle is internally provided with a liquid distributor, a partition frame and a gas distributor, the liquid distributor is positioned at the upper part, the partition frame is positioned at the middle part, the gas distributor is positioned at the lower part, the jet reactor is internally provided with a diffusion chamber, the jet reactor is connected with the hydrocyclone separator through the diffusion, the interior of the hydrocyclone is divided into an inner cylinder and an outer cylinder by a partition wall pore plate; be provided with the valve No. one between No. two heat exchangers and the injection reactor, be provided with the manometer No. one between valve and the injection reactor, be provided with the valve No. two between No. two heat exchangers and the hydrocyclone separator, be provided with the manometer No. two between No. two valves and the hydrocyclone separator, be provided with the valve No. three between No. two heat exchangers and the compressor, be provided with the manometer No. three between No. three valve and the reation kettle, the freezer that independently sets up is connected with the heat exchanger No. one, the freezer passes through compressor No. two and pipe network intercommunication, the outside and the heat pipe of freezer are connected.

2. The LNG peak shaving device according to claim 1, wherein the reaction kettle, the injection reactor and the hydrocyclone constitute a three-stage reaction vessel; the partition frame equally divides the internal space of the reaction kettle into unit reaction spaces, each unit reaction space is provided with a staggered half-segmental tower plate, the tower plates are provided with vent holes, a liquid distributor and a gas distributor respectively uniformly distribute liquid materials and a first strand of gas materials and then send the first strand of gas materials into the unit reaction spaces, the liquid materials flow through the surfaces of the tower plates, the first strand of gas materials is contacted with the liquid materials through the vent holes, a gas-liquid interface is continuously updated to provide a heat and mass transfer interface for the full mixing reaction of the liquid materials and the first strand of gas materials, the amplification effect when NGH is generated is reduced, and the number of the partitions, the height of the tower plates and the number of the vent holes of the partition frame are selected according to the capacity of the reaction kettle and the viscosity; the first valve, the second valve and the third valve are self-operated regulating valves, and are used for regulating the flow of the second strand of gas material, the third strand of gas material and the first strand of gas material respectively; the first pressure gauge, the second pressure gauge and the third pressure gauge are used for measuring the pressure of the jet reactor, the hydrocyclone and the reaction kettle respectively.

3. An LNG peak shaving apparatus according to claim 1 or 2, characterized in that the partition frame is formed by six partitions which are inserted into each other.