CN112226258A

CN112226258A - NGH decomposition device and constant-temperature decomposition system for gas station

Info

Publication number: CN112226258A
Application number: CN202011086750.7A
Authority: CN
Inventors: 张强; 张保勇; 黄一鸣; 吴强; 康宇; 侯凤才
Original assignee: Heilongjiang University of Science and Technology
Current assignee: Heilongjiang University of Science and Technology
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-01-15
Anticipated expiration: 2040-10-12
Also published as: CN112226258B

Abstract

The application provides NGH's decomposition device and constant temperature decomposition system, wherein, decomposition device includes: the device comprises a shell, a sealing device, a first opening device, a decomposition kettle, a second opening device, a heating device, a pushing device, a dividing device, a pushing device, a liquid storage device and a gas storage device. The sealing device is connected with the storage tank in a sealing way, so that a sealed space is formed in the shell; the first opening device opens the storage tank, and the pushing device pushes part of the natural gas hydrate into the shell; the cutting device cuts the natural gas hydrate, and the pushing device pushes the cut natural gas hydrate into the decomposition kettle; then the second opening device closes the decomposing kettle to form a closed space in the decomposing kettle, and the heating device heats the decomposing kettle to decompose the natural gas hydrate into liquid and natural gas. The application provides a decomposition device, because natural gas hydrate's cutting apart and decomposition are located casing and decomposition kettle and go on, natural gas hydrate processing procedure can not receive external environment factor to influence.

Description

NGH decomposition device and constant-temperature decomposition system for gas station

Technical Field

The application relates to the field of natural gas storage and transportation, in particular to a NGH decomposition device and a constant-temperature decomposition system with the same.

Background

At present, with the stricter and stricter environmental protection policy of the country, natural gas is more and more emphasized by the country as a clean energy, natural gas automobiles are more and more, the development of a natural gas filling station is brought, and the storage of natural gas of the filling station mainly comprises the modes of Liquefied Natural Gas (LNG), Compressed Natural Gas (CNG) and the like. The LNG storage and transportation technology adopts a low-temperature high-pressure storage method in a liquefaction device, so that the requirements on production equipment, personnel technology and storage devices are strict, and complex processes such as purification, liquefaction and the like are added, so that the investment cost is increased, and the operation cost is increased. The CNG storage and transportation technology has great danger in the transportation process, and the gas storage cylinder has large volume and heavy mass, so the CNG storage and transportation technology needs to be invested in emergency treatment, optimized operation and the like of pipeline accidents. Therefore, the existing natural gas filling station utilizes CNG and LNG for storage and transportation, the LNG storage has high requirements on the storage tank, the CNG storage pressure is high, and the CNG and LNG for storage and transportation have the problems of poor stability, harsh storage conditions and high energy consumption.

NGH (natural gas hydrate) is solid, is an ice-like crystalline substance formed by natural gas and water under the conditions of the air pressure of 2MPa-6MPa and the temperature of 0-20 ℃, and can be stored for a long time at the temperature of about-15 to-0 ℃ and the pressure of 1-10 atmospheres. NGH is a stable solid product, exists in a solid state in the transportation process, and has the advantages of good safety, difficult combustion and explosion. The hydrate analysis can be realized by controlling the temperature, the decomposition is slow under proper conditions, a protective film is formed on the surface during the decomposition to slow down the decomposition, and the regasification can be effectively carried out. Therefore, it is necessary to build a set of gas station which can release natural gas quickly, safely and efficiently under mild conditions according to the characteristics of NGH.

Disclosure of Invention

The utility model aims at providing a simple structure, can cut gas hydrate in succession, do not receive external environment factor influence's NGH's decomposition device and constant temperature decomposition system.

In order to achieve at least one of the above objects, an embodiment of the first aspect of the present application provides a NGH decomposition device for a gas station, including: a housing comprising an access chamber having a first opening; the sealing device is arranged at the first opening and used for being connected with a storage tank filled with natural gas hydrate to seal the first opening; the first opening device is arranged on the inner wall of the taking cavity and is used for separating or sealing the cover body of the saving tank from the tank body of the saving tank; the decomposition kettle is fixed on the shell and comprises a kettle body and a kettle cover, the kettle body comprises a decomposition cavity with a second opening, the decomposition cavity is communicated with the taking cavity, and the kettle cover is used for sealing the second opening; the second opening device is arranged on the inner wall of the taking cavity and used for separating or sealing the kettle cover and the kettle body; the heating device is arranged on the kettle body; the push-out device is used for pushing the natural gas hydrate in the storage tank into the taking cavity; the cutting device is arranged in the taking cavity and is used for cutting the natural gas hydrate extending out of the storage tank; the pushing device is arranged in the taking cavity and used for pushing the cut natural gas hydrate into the kettle body; the liquid storage device is communicated with the decomposition kettle and is used for storing liquid generated after the natural gas hydrate is decomposed; and the gas storage device is communicated with the decomposition kettle and is used for storing the gas generated after the natural gas hydrate is decomposed.

In some of these embodiments, the disaggregation apparatus further comprises: the sliding bottom is arranged in the decomposition cavity and sealed with the cavity wall of the decomposition cavity, and can slide relative to the decomposition kettle; the elastic supporting piece is arranged in the decomposition cavity and is supported between the sliding bottom and the cavity wall of the decomposition cavity; the liquid inlet of the liquid storage device is located on the sliding bottom, and the air inlet of the air storage device is arranged close to the second opening.

In some of these embodiments, the disaggregation apparatus further comprises: the pipeline is arranged in the wall body of the kettle body; the cooling liquid circulating device is connected with the pipeline and is used for circularly conveying cooling liquid into the pipeline; and the heat insulation layer is arranged in the wall body of the kettle body and is positioned on one side of the pipeline, which is far away from the decomposition cavity.

In some of these embodiments, the disaggregation apparatus further comprises: the first pressure sensor is arranged in the decomposition cavity and used for detecting the pressure in the decomposition cavity and sending a pressure signal; and the first controller is respectively connected with the first pressure sensor, the liquid storage device, the gas storage device and the heating device, and is used for receiving the pressure signal and controlling the power failure of the heating device, the communication of the liquid storage device and the decomposition cavity and the communication of the gas storage device and the decomposition cavity according to the pressure signal.

In some of these embodiments, the disaggregation apparatus further comprises: the pressure adjusting device is communicated with the taking cavity and is used for adjusting the pressure in the taking cavity; the second pressure sensor is arranged in the taking cavity and used for detecting the pressure in the detection taking cavity and sending a pressure signal; and the second controller is respectively connected with the second pressure sensor and the pressure regulating device, and is used for receiving the pressure signal and controlling the pressure regulating device to be opened or closed according to the pressure signal.

In some of these embodiments, the pushing device comprises: the pushing block is provided with a dropping opening; one end of the telescopic rod is connected with the cavity wall of the taking cavity, one end of the telescopic rod is connected with the push block, the telescopic rod drives the push block to push the cut natural gas hydrate to the kettle body, and the cut natural gas hydrate falls into the kettle body from the shedding port; the cutting device is a cutting knife which is arranged on the push block.

In some of these embodiments, the sealing device comprises: a seal ring disposed at the first opening; and one end of the telescopic control piece is connected with the shell, and the other end of the telescopic control piece is connected with the sealing ring and used for controlling the sealing ring to be connected with or separated from the accumulator tank.

In some of these embodiments, the disaggregation apparatus further comprises: the flowmeter is arranged on the gas storage device of the decomposition device and used for detecting the quantity of the natural gas in the gas storage device and sending a quantity signal; and the third controller is respectively connected with the push-out device and the flowmeter and is used for receiving the quantity signal and controlling the movement distance of the push-out device according to the quantity signal.

Embodiments of a second aspect of the present application provide an isothermal decomposition system of NGH for a gas station, comprising: the constant-temperature refrigeration house is provided with an inlet and an outlet; the NGH decomposer of any one of the above, disposed in the constant temperature cold store; the transportation device is arranged in the constant-temperature cold storage and is used for transporting the storage tank filled with the natural gas hydrate to the decomposition device, and the pushing device of the decomposition device is arranged on the transportation device; and the inlet of the first conveyor belt is positioned at the warehousing port, and the outlet of the first conveyor belt is arranged close to the conveying device and used for conveying the saving tank to the conveying device.

In some of these embodiments, the thermostatic decomposition system further comprises: the telescopic heat-preservation channel is arranged outside the constant-temperature refrigeration house, one end of the telescopic heat-preservation channel is connected with the warehouse entry, and the other end of the telescopic heat-preservation channel is used for being connected with a refrigeration car for transporting the saving tank; the channel temperature sensor is arranged in the telescopic heat preservation channel and used for detecting the temperature of the telescopic heat preservation channel and sending a temperature signal; the control device is respectively connected with the channel temperature sensors and is used for receiving the temperature signals and controlling the opening of the loading and unloading door of the refrigerator car according to the temperature signals; the first conveying belt comprises a telescopic conveying belt and a conveying belt, the telescopic conveying belt is arranged at the position of the storage opening, the control device is connected with the telescopic conveying belt, and the control device controls the telescopic conveying belt to penetrate through the telescopic heat preservation channel to extend into the refrigerator car according to the temperature signal.

The above technical scheme of this application has following advantage: the sealing device is connected with the storage tank in a sealing way, so that the taking cavity forms a sealed space; then separating the cover body of the saving tank from the tank body by the first opening device, and simultaneously separating the kettle cover from the kettle body by the second opening device; the pushing device pushes part of the natural gas hydrate into the taking cavity; the cutting device cuts the natural gas hydrate, and the pushing device pushes the cut natural gas hydrate into the kettle body; then the kettle cover and the kettle body are hermetically connected through a second opening device, so that a closed space is formed in the decomposing kettle, and the heating device heats the decomposing kettle to decompose the natural gas hydrate into liquid and natural gas; the liquid is collected and stored by the liquid storage device, and the gas is collected and stored by the gas storage device. According to the device, the push-out device is matched with the cutting device to cut the natural gas hydrate with a certain thickness, then the natural gas and the liquid are generated through the decomposition kettle, and the natural gas hydrate is cut and decomposed in the taking cavity and the decomposition cavity, so that the decomposition process and the cutting process of the natural gas hydrate are not influenced by external environmental factors, and the stability and the safety of natural gas generation are ensured; in addition, the quantitative cutting of the natural gas hydrate is realized through the matching of the push-out device and the cutting device, so that the quantitative taking of the natural gas is realized.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration only and are not necessarily drawn to scale or quantity with respect to the actual product. Wherein:

FIG. 1 is a schematic cross-sectional view of a first embodiment of a decomposition device according to the present application;

FIG. 2 is a schematic sectional view of a decomposing tank according to the present application;

FIG. 3 is a block diagram showing a first control of the decomposition device according to the present application;

FIG. 4 is a schematic cross-sectional view of a second embodiment of the decomposition device of the present application;

FIG. 5 is a block diagram showing a second control of the decomposition device according to the present application;

FIG. 6 is a schematic diagram of a configuration of a pushing device and a cutting device according to the present application;

FIG. 7 is a schematic view of the seal of the present application;

FIG. 8 is a block diagram showing a third control of the decomposition device according to the present application;

FIG. 9 is a schematic structural view of a first embodiment of an isothermal decomposition system according to the present application;

FIG. 10 is a schematic view of a transport device according to the present application;

FIG. 11 is a block diagram illustrating a first control of the pyrolysis system according to the present application;

FIG. 12 is a schematic view of a portion of a second embodiment of an isothermal decomposition system according to the present application;

FIG. 13 is a schematic view of a portion of the thermostatic decomposition system of the present application in cooperation with a refrigerated vehicle;

FIG. 14 is a block diagram of a second control of the pyrolysis system according to the present application.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 14 is:

the device comprises a shell 10, a taking cavity 11, a sealing device 20, a sealing ring 21, a telescopic control member 22, a second electromagnet 221, a second ferromagnetic member 222, a spring 223, a first opening device 30, a decomposing kettle 40, a kettle body 41, a kettle cover 42, a decomposing cavity 43, a first electromagnet 44, a first ferromagnetic member 45, a second opening device 50, a heating device 60, a pushing device 70, a threaded rod 71, a base 72, a motor 73, a dividing device 80, a pushing device 90, a pushing block 91, a telescopic rod 92, a dropping port 93, a liquid storage device 100, a liquid pump 101, a liquid storage tank 102, a gas storage device 110, a dryer 111, an air suction pump 112, a gas storage tank 113, a sliding bottom 120, an elastic support 130, a pipeline 140, a cooling liquid circulating device 150, a heat insulation layer 160, a pressure sensor 170, a first controller 180, a pressure regulating device 190, a pressure sensor 200, a second controller 210, a flow meter 220 and a third controller 230, the decomposition device 300, the constant temperature decomposition system 400, the constant temperature freezer 401, the conveyer 402, the transport vehicle 421, the storage tank seat 422, the lifting device 423, the hydraulic push rod 424, the first conveyer belt 403, the telescopic conveyer belt 431, the conveyer belt 432, the telescopic heat preservation channel 404, the channel temperature sensor 405, the control device 406, the manipulator 407, the second conveyer belt 408, the freezer temperature sensor 409, the gas leakage alarm 410, the fourth controller 411, the temperature regulator 412, the refrigerator vehicle 500, the storage tank 600, the tank body 601, the side wall 611, the bottom plate 612 and the cover body 602.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The following discussion provides a number of embodiments of the application. While each embodiment represents a single combination of applications, the various embodiments of the disclosure may be substituted or combined in any combination, and thus, the disclosure is intended to include all possible combinations of the same and/or different embodiments of what is described. Thus, if one embodiment comprises A, B, C and another embodiment comprises a combination of B and D, then this application should also be considered to comprise an embodiment that comprises A, B, C, D in all other possible combinations, although this embodiment may not be explicitly recited in the text below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

As shown in fig. 1, an embodiment of the first aspect of the present application provides a decomposition apparatus 300 for NGH of a gas station, including: the device comprises a shell 10, a sealing device 20, a first opening device 30, a decomposition kettle 40, a second opening device 50, a heating device 60, a pushing device 70, a separating device 80, a pushing device 90, a liquid storage device 100 and a gas storage device 110.

The housing 10 comprises an access chamber 11 with a first opening.

As shown in fig. 1, a sealing device 20 is provided at the first opening for sealing the first opening in connection with a reservoir tank 600 containing natural gas hydrates. After the accumulator 600 is partially pushed into the taking chamber 11, the sealing device 20 is hermetically connected to the outer wall surface of the sealing device 20, thereby sealing the first opening and forming a sealed space in the taking chamber 11.

As shown in fig. 1, the first opening device 30 is disposed on an inner wall of the taking chamber 11, and is used to separate or seal the cover 602 of the reservoir 600 from the body 601 of the reservoir 600. The first opening device 30 is a mechanical arm, which moves to the cover 602 to clamp the cover 602, and rotates the cover 602 relative to the can 601, so as to separate the cover 602 from the can 601, and then drives the cover 602 to move to a predetermined position. Alternatively, the first opening device 30 is an electric telescopic loading and unloading arm, which extends to lock with a groove on the upper portion of the cover 602, and rotates the cover 602 relative to the can 601, so as to separate the cover 602 from the can 601, and then drives the cover 602 to retract.

As shown in fig. 1, the decomposing kettle 40 is fixed on the housing 10, the decomposing kettle 40 includes a kettle body 41 and a kettle cover 42, the kettle body 41 includes a decomposing cavity 43 having a second opening, the decomposing cavity 43 is communicated with the taking cavity 11, and the kettle cover 42 is used for sealing the second opening.

As shown in fig. 1, a second opening device 50 is provided on an inner wall of the taking chamber 11 for separating or sealing the cover 42 from the body 41. The second opening device 50 is a mechanical arm, which moves to the kettle cover 42 to clamp the kettle cover 42, and rotates the kettle cover 42 relative to the kettle body 41, so as to separate the kettle cover 42 from the kettle body 41, and then drives the kettle cover 42 to move to a set position. Or, the second opening device 50 is an electric telescopic loading and unloading arm, the electric telescopic loading and unloading arm is extended to be locked with the groove at the upper part of the kettle cover 42, and rotates the kettle cover 42 relative to the kettle body 41, so that the kettle cover 42 is separated from the kettle body 41, and then the kettle cover 42 is driven to retract.

As shown in fig. 1, the heating device 60 is disposed on the kettle body 41. The heating device 60 heats the kettle body 41 to decompose the natural gas hydrate in the decomposition cavity 43 into liquid and natural gas. The heating device 60 is a heating wire wound on the inner wall of the kettle body 41.

As shown in fig. 1, the push-out device 70 is used for pushing the gas hydrate in the storage tank 600 into the taking cavity 11. The tank 601 includes a sidewall 611 and a bottom plate 612. The side wall 611 is connected with the bottom plate 612 in a sealing manner and encloses a cavity containing natural gas hydrate with the cover body 602, and the bottom plate 612 can move relative to the side wall 611. The pushing device 70 is connected to the bottom plate 612 and drives the bottom plate 612 to move so as to push the natural gas hydrate out of the tank 601. The pushing device 70 includes a threaded rod 71, a base 72, and a motor 73. The base 72 drives the threaded rod 71 to rise, and the motor 73 drives the threaded rod 71 to screw into the threaded hole of the bottom plate 612, so that the threaded rod 71 is fixedly connected with the bottom plate 612. Base 72, via threaded rod 71, lifts bottom plate 612 to push the gas hydrate out of tank 601. Alternatively, the pushing device 70 comprises a telescopic rod, which is extended to lock with a groove on the upper part of the bottom plate 612 and drives the bottom plate 612 to rise so as to push the gas hydrate out of the tank 601.

As shown in fig. 1, a cutting device 80 is provided in the access chamber 11 for cutting the gas hydrates that extend out of the reservoir 600. After the natural gas hydrate quantitatively protrudes from the tank body 601, the cutting device 80 cuts off the part of the natural gas hydrate quantitatively protruding out of the tank body 601, so that the purpose of quantitatively cutting the natural gas hydrate is achieved.

As shown in fig. 1, a pushing device 90 is disposed in the taking cavity 11 for pushing the cut natural gas hydrate into the kettle body 41. The cut natural gas hydrate is located in the taking cavity 11, and the cut natural gas hydrate is pushed into the kettle body 41 through the pushing device 90 to be decomposed.

As shown in fig. 1, the liquid storage device 100 is communicated with the decomposition kettle 40 and is used for storing liquid generated after the natural gas hydrate is decomposed. The liquid storage device 100 includes a liquid pump 101 and a liquid storage tank 102, and generates liquid and natural gas by heating and decomposing natural gas hydrate. The liquid pump 101 pumps liquid from the decomposition kettle 40 and stores the liquid into the liquid storage tank 102, and the liquid storage device 100 further includes a valve body for controlling the communication between the liquid storage device 100 and the decomposition kettle 40.

As shown in fig. 1, the gas storage device 110 is communicated with the decomposition kettle 40 and is used for storing the gas generated after the natural gas hydrate is decomposed. The gas storage device 110 includes a dryer 111, an air pump 112, and a gas storage tank 113, and generates liquid and natural gas by heating and decomposing natural gas hydrate. The gas is pumped from the decomposition tank 40 by the pump 112 and sent into the dryer 111, and the gas is pumped from the dryer 111 by the pump 112 and stored in the gas tank 113.

The decomposition process of the natural gas hydrate is specifically as follows: the sealing device 20 is connected with the storage tank 600 in a sealing way, and seals the first opening to form a sealed space by the taking cavity 11; then the first opening device 30 is connected with the cover body 602, and the cover body 602 is separated from the tank body 601, so that the natural gas hydrate is exposed in the taking cavity 11; meanwhile, the second opening device 50 is connected with the kettle cover 42 and separates the kettle cover 42 from the kettle body 41; the pushing device 70 pushes the part of the natural gas hydrate in the tank body 601 into the taking cavity 11; the splitting device 80 cuts off the portion of the natural gas hydrate; the pushing device 90 pushes the cut natural gas hydrate into the kettle body 41; then the first opening device 30 connects the cover 602 with the tank 601 in a sealing manner, and the second opening device 50 connects the kettle cover 42 with the kettle body 41 in a sealing manner, so that a closed space is formed in the decomposing kettle 40; the heating device 60 heats the decomposition kettle 40 to decompose the natural gas hydrate into liquid and natural gas; the liquid is collected and stored by the liquid storage device 100, and the gas is collected and stored by the gas storage device 110.

The utility model provides a NGH's decomposition device 300 cuts the natural gas hydrate of certain thickness through the cooperation of ejecting device 70 and segmenting device 80, then generates natural gas and liquid through decomposing cauldron 40, because natural gas hydrate's cutting apart and the decomposition is located to take chamber 11 and decompose the intracavity 43 and go on, consequently natural gas hydrate's decomposition and cut apart the process and can not receive external environment factor influence, guaranteed the stability and the security that the natural gas generated. In addition, the quantitative cutting of the natural gas hydrate is realized through the matching of the pushing device 70 and the dividing device 80, so that the quantitative taking of the natural gas is realized. In addition, the amount of cut natural gas hydrates is determined by the amount of natural gas output by the decomposition device 300. Specifically, the main control system forms a feedback signal by the terminal software according to the amount of the natural gas output by the decomposition device 300, and controls the push-out device 70 and the dividing device 80 to achieve the purpose of quantitatively intercepting the natural gas hydrate.

As shown in fig. 2, in an embodiment of the present application, the decomposition device 300 further includes: a sliding bottom 120 and a resilient support 130.

The sliding bottom 120 is arranged in the decomposition cavity 43 and sealed with the cavity wall of the decomposition cavity 43, and the sliding bottom 120 can slide relative to the decomposition kettle 40.

The elastic support 130 is disposed in the decomposition chamber 43 and supported between the slide base 120 and the wall of the decomposition chamber 43.

When no gas hydrate is put into the decomposition kettle 40, the elastic support member 130 supports the sliding bottom 120, so that the surface of the sliding bottom 120 contacting the gas hydrate is parallel to the end surface of the kettle body 41 provided with the second opening. When the gas hydrate is put into the decomposition kettle 40, the elastic support member 130 is compressed due to the self weight of the gas hydrate, so that the sliding bottom 120 moves towards the bottom of the decomposition kettle 40, then the gas hydrate is pressed into the decomposition cavity 43 by the kettle cover 42, and a closed space is formed after the kettle cover 42 is hermetically connected with the kettle body 41.

After the natural gas hydrate is placed on the sliding bottom 120, the sliding bottom 120 can move towards the bottom of the decomposition kettle 40, so that all substances entering the decomposition cavity 43 are the natural gas hydrate, other impurity gases are prevented from entering the decomposition cavity 43 and participating in the decomposition process of the natural gas hydrate, and the purity of the gas generated by the decomposition of the natural gas hydrate is ensured.

The natural gas hydrate is decomposed to generate a large amount of gas and liquid, and the gas volume is large, so that the sliding bottom 120 is further toward the bottom of the decomposition kettle 40 and is attached to the bottom of the decomposition kettle 40. A liquid inlet of the liquid storage device 100 is positioned on the sliding bottom 120, and an air inlet of the gas storage device 110 is arranged on the kettle cover 42; because the density of the liquid is higher than that of the gas, the liquid is positioned at the bottom of the decomposition kettle 40, the gas is positioned at the upper part of the decomposition kettle 40, and the liquid inlet is positioned at the sliding bottom 120, so that the liquid can be conveniently and completely discharged from the decomposition kettle 40; the gas inlet is arranged on the kettle cover 42, which facilitates the gas to be completely discharged from the decomposing kettle 40. In a specific embodiment of the present application, the surface of the sliding bottom 120 contacting with the natural gas hydrate is an inclined surface, and the liquid inlet is located at the lowest part of the surface; preferably, the liquid inlet is located at the geometric center of the slide base 120. The surface of the kettle cover 42 provided with the air inlet is an inclined plane, and the air inlet is positioned at the highest position of the surface; preferably, the gas inlet is located at the geometric center of the kettle cover 42.

As shown in fig. 2, in another embodiment of the present application, a first electromagnet 44 is disposed on the bottom of the decomposition kettle 40, a first ferromagnetic member 45 corresponding to the first electromagnet 44 is disposed on the sliding bottom 120, the gas hydrate is located in the decomposition cavity 43, the first electromagnet 44 is energized, the first ferromagnetic member 45 is attracted by the first electromagnet 44, the sliding bottom 120 is located on the bottom of the decomposition kettle 40, the liquid inlet of the liquid storage device 100 is located on the sliding bottom 120, and the gas inlet of the gas storage device 110 is located on the kettle body 41 and is adjacent to the second opening. When the liquid and gas in the decomposition chamber 43 are exhausted, the first electromagnet 44 is de-energized, the first electromagnet 44 is separated from the first ferromagnetic member 45, and the sliding bottom 120 is reset under the action of the elastic support member 130. Since the vessel cover 42 needs to be frequently separated from or connected to the vessel body 41, frequent movement of the cover body 602 is liable to damage the piping communicating with the gas inlet. Therefore, the air inlet is positioned on the kettle body 41, so that the service life of a pipeline communicated with the air inlet is prolonged. The arrangement of the first electromagnet 44 enables the sliding bottom 120 to reset after the gas and the liquid are completely discharged, so that the situation that the sliding bottom 120 resets and shields the gas inlet along with the gas discharge is avoided, and the gas can be completely discharged.

As shown in fig. 2, in an embodiment of the present application, the decomposition device 300 further includes: a pipeline 140, a cooling liquid circulating device 150 and a heat insulation layer 160.

The pipe 140 is provided in the wall of the kettle body 41.

The cooling liquid circulating device 150 is connected to the pipeline 140 and is used for circularly conveying the cooling liquid into the pipeline 140.

The thermal insulation layer 160 is arranged in the wall of the kettle body 41 and is positioned on the side of the pipeline 140 far away from the decomposition cavity 43.

After the liquid and the gas generated by the decomposition of the natural gas hydrate are stored, a certain amount of heat is still in the decomposition kettle 40, if the kettle cover 42 is opened at this time, the heat in the kettle body 41 will escape into the taking cavity 11, and the heat will affect the natural gas hydrate in the taking cavity 11, so that the natural gas hydrate is unstable. Therefore, the pipeline 140 and the cooling liquid circulation device 150 can cool the decomposition kettle 40, and remove the residual heat in the decomposition kettle 40, thereby ensuring the stability of the gas hydrate in the taking cavity 11.

In addition, due to the arrangement of the heat insulation layer 160, on one hand, the heat for decomposing the natural gas hydrate is prevented from entering the taking cavity 11 through the kettle body 41; on the other hand, the loss of cold in the pipeline 140 in the cooling process is avoided. In one embodiment of the present application, the cooling fluid circulation device 150 is a liquid nitrogen circulation device, and the liquid nitrogen circulation device injects liquid nitrogen into the pipeline 140 to cool the decomposition kettle 40. In another embodiment of the present application, the cooling liquid circulation device 150 includes a compressor and a condenser, the pipeline 140 is an evaporation pipe, the compressor compresses gas to form liquid, and sends the liquid into the condenser, the liquid is cooled by the condenser, and then the liquid absorbs heat in the decomposition kettle 40 to become gas after entering the evaporation pipe, and then the gas enters the compressor.

As shown in fig. 2 and 3, in one embodiment of the present application, the decomposition device 300 further includes: a first pressure sensor 170, and a first controller 180.

A first pressure sensor 170 is disposed within decomposition chamber 43 for sensing the pressure within decomposition chamber 43 and sending a pressure signal.

The first controller 180 is connected to the first pressure sensor 170, the liquid storage device 100, the gas storage device 110 and the heating device 60, respectively, and the first controller 180 is configured to receive the pressure signal and control the heating device 60 to be powered off, the liquid storage device 100 to be communicated with the decomposition cavity 43, and the gas storage device 110 to be communicated with the decomposition cavity 43 according to the pressure signal.

When the natural gas hydrate is completely decomposed, the pressure in the decomposition cavity 43 tends to be stable, and the first controller 180 controls the heating device 60 to be powered off according to the pressure signal, so that the waste of energy is avoided. Then, the valve between the gas storage device 110 and the decomposition kettle 40 is controlled to open, and the gas storage device 110 collects the gas. After the gas in the decomposition cavity 43 is exhausted, the pressure in the decomposition cavity 43 tends to be stable again, the first controller 180 closes the valve between the gas storage device 110 and the decomposition kettle 40 according to the pressure signal, and controls the valve between the liquid storage device 100 and the decomposition kettle 40 to open, and the liquid storage device 100 collects the liquid. When the liquid in the decomposition chamber 43 is completely discharged, the pressure in the decomposition chamber 43 tends to be stable again, and the first controller 180 closes the valve body between the liquid storage device 100 and the decomposition kettle 40 according to the pressure signal.

In another embodiment of the present application, during the process of pressing the natural gas hydrate into the decomposition chamber 43 by the kettle cover 42, the pressure in the decomposition chamber 43 changes all the time; after the kettle cover 42 is fixedly connected with the kettle body 41, the pressure in the decomposition cavity 43 tends to be stable, and the first controller 180 controls the first electromagnet 44 to be electrified and attract the first ferromagnetic member 45 according to the pressure signal, so that the sliding bottom 120 is fixed at the bottom of the decomposition kettle 40.

In one embodiment of the present application, a cavity temperature sensor is disposed in the decomposition cavity, and the cavity temperature sensor is configured to detect a temperature in the decomposition cavity and send a temperature signal. When the temperature in the decomposition cavity reaches the decomposition temperature of the natural gas hydrate, the controller controls the start and stop of the heating device according to the temperature signal so as to keep the temperature in the decomposition cavity at the decomposition temperature all the time. When the temperature of the decomposition cavity is reduced through the pipeline and the cooling liquid circulating device, the controller controls the cooling liquid circulating device to stop working according to the temperature signal after the temperature in the decomposition cavity reaches the target temperature.

As shown in fig. 4 and 5, in an embodiment of the present application, the disassembling apparatus 300 further includes: a pressure regulating device 190, a second pressure sensor 200, and a second controller 210.

The pressure adjusting device 190 is communicated with the taking cavity 11 and used for adjusting the pressure in the taking cavity 11.

The second pressure sensor 200 is provided in the taking chamber 11, and detects the pressure in the taking chamber 11 and transmits a pressure signal.

The second controller 210 is connected to the second pressure sensor 200 and the pressure regulating device 190, respectively, and the second controller 210 is configured to receive the pressure signal and control the pressure regulating device 190 to open or close according to the pressure signal.

The natural gas hydrate can tend to the stabilizing device under certain pressure, the cutting of the natural gas hydrate is carried out in the taking cavity 11, and the natural gas hydrate is unstable due to unstable pressure in the taking cavity 11. The second controller 210 controls the start and stop of the pressure regulating device 190 according to the pressure signal to adjust the pressure in the taking cavity 11 and keep the pressure in the natural gas hydrate storage pressure, so that the resource waste caused by the decomposition of the natural gas hydrate is avoided.

As shown in fig. 6, in one embodiment of the present application, the pushing device 90 includes: a push block 91 and a telescopic rod 92.

The pushing block 91 is provided with a dropping port 93.

One end of the telescopic rod 92 is connected with the cavity wall of the taking cavity 11, one end of the telescopic rod 92 is connected with the push block 91, the telescopic rod 92 drives the push block 91 to push the cut natural gas hydrate to the kettle body 41, and the cut natural gas hydrate falls into the kettle body 41 from the falling port 93.

As shown in fig. 6, the dividing device 80 is a cutting knife, and the cutting knife is disposed on the push block 91.

The cutting knife is arranged at the front end of the push block 91, the telescopic rod 92 extends to drive the push block 91 to move, so that the push block 91 moves towards the natural gas hydrate from an initial position, the cutting knife cuts the natural gas hydrate, after the cutting knife cuts the natural gas hydrate, the push block 91 pushes the cut natural gas hydrate to the upper side of the kettle body 41, and the natural gas hydrate falls into the kettle body 41 from the falling-off opening 93; the telescopic rod 92 retracts to drive the push block 91 to move, so that the push block 91 returns to the initial position. The cutting knife is simple in structure and can effectively cut the natural gas hydrate. In an embodiment of the application, be provided with the holding tank on the ejector pad 91, the gas hydrate that cuts off is located the holding tank, and the mouth 93 that drops is located the tank bottom of holding tank.

As shown in fig. 7, in one embodiment of the present application, the sealing device 20 includes: a sealing ring 21 and a telescoping control member 22.

A sealing ring 21 is arranged at the first opening.

One end of the telescopic control member 22 is connected to the housing 10, and the other end of the telescopic control member 22 is connected to the sealing ring 21, for controlling the sealing ring 21 to be connected to or separated from the accumulator tank 600.

When the portion of the saving tank 600 extends into the taking cavity 11, the retractable control member 22 extends to drive the sealing ring 21 to move, and the sealing ring is connected with the side wall 611 of the saving tank 600 in a sealing manner, so that the first opening is sealed to form a sealed space in the taking cavity 11. When there is no gas hydrate in the reservoir 600, the retractable control member 22 is retracted to move the sealing ring 21 away from the sidewall 611 of the reservoir 600, so as to replace the reservoir 600. The accumulator tank 600 is provided with a sealing groove, and the sealing element can be clamped in the sealing groove, so that the sealing element and the accumulator tank 600 are sufficiently sealed.

As shown in fig. 7, in one embodiment of the present application, the telescopic control member 22 includes a second electromagnet 221, a second ferromagnetic member 222, and a spring 223, the second ferromagnetic member 222 being disposed on the seal ring 21, the spring 223 being disposed between the second electromagnet 221 and the second ferromagnetic member 222. When the accumulator 600 is required to be connected with the sealing member, the second electromagnet 221 is powered off, the second electromagnet 221 is separated from the second ferromagnetic member 222, and the spring 223 presses the sealing member against the accumulator 600 through the elastic force, so that the sealing member is in sealing connection with the side wall 611 of the accumulator 600. When it is desired to disengage the reservoir 600 from the seal, the second electromagnet 221 is energized, the second electromagnet 221 attracts the second ferromagnetic member 222, and the spring 223 is compressed and accumulates force to disengage the seal from the reservoir 600.

As shown in fig. 4 and 8, in one embodiment of the present application, the disassembling apparatus 300 further includes: a flow meter 220, and a third controller 230.

The flow meter 220 is disposed on the gas storage 110 of the decomposition device 300, and is configured to detect the amount of natural gas in the gas storage 110 and transmit an amount signal.

The third controller 230 is connected to the push-out device 70 and the flow meter 220, respectively, and the third controller 230 is configured to receive the quantity signal and control the moving distance of the push-out device 70 according to the quantity signal.

The flow meter 220 is configured to count the volume of the gas stored in the gas storage device 110, and when the volume of the gas does not reach the required volume, the third controller 230 controls the moving distance of the push-out device 70 according to the quantity signal, so as to control the volume of the gas hydrate extending out of the tank 601, so as to cut the gas hydrate more accurately, and accurately obtain the volume of the required gas by subsequently decomposing the gas hydrate.

As shown in fig. 9, an isothermal decomposition system 400 for NGH of a gas station provided in an embodiment of the second aspect of the present application includes an isothermal cold store 401, a decomposition device 300, a transport device 402, and a first conveyor belt 403.

As shown in fig. 9, the constant temperature refrigerator 401 has an entrance and an exit.

As shown in fig. 9, the decomposition device 300 is the decomposition device 300 for NGH described above, and the decomposition device 300 is installed in a constant temperature refrigerator 401.

As shown in fig. 9, the transportation device 402 is disposed in the constant temperature refrigerator 401 to transport the storage tank 600 filled with the gas hydrate to the decomposition device 300, and the push-out device 70 of the decomposition device 300 is disposed on the transportation device 402. The transportation device 402 includes a transportation vehicle 421, a tank seat 422, and a lifting device 423, wherein the tank seat 422 is disposed on the transportation vehicle 421, and the lifting device 423 is disposed between the transportation vehicle 421 and the tank seat 422. The transport vehicle 421 transports the tank 600 to the lower side of the decomposition device 300 through the tank seat 422, and the lifting device 423 lifts up to extend a part of the tank 600 into the access chamber 11 of the decomposition device 300. When the reservoir 600 is empty of gas hydrate, the lifting device 423 is lowered to take the reservoir 600 out of the decomposition device 300.

As shown in fig. 9, the entrance of the first conveyor belt 403 is located at the warehousing entrance and the exit of the first conveyor belt 403 is located adjacent to the transport device 402 for transporting the accumulator tank 600 onto the transport device 402.

In the constant temperature decomposition system 400 provided by the application, the storage tank 600 is placed on the first conveyor belt 403 through the warehousing port and is conveyed to the conveying device 402 through the first conveyor belt 403, the conveying device 402 conveys the storage tank 600 to the decomposition device 300, and the natural gas hydrate is decomposed through the decomposition device 300; in the constant-temperature refrigeration house 401 during the decomposition and transportation process of the natural gas hydrate, the temperature in the constant-temperature refrigeration house 401 is kept not higher than the decomposition temperature of the natural gas hydrate, so that the condition that the natural gas hydrate is decomposed during the transportation process is avoided. In addition, the decomposition process and the segmentation process of the natural gas hydrate are both in the constant-temperature refrigeration house 401, and are not influenced by external environmental factors, so that the stability and the safety of natural gas generation are ensured.

As shown in fig. 9, in one embodiment of the present application, the isothermal digestion system 400 further includes a robot 407 and a second conveyor 408. The exit of the second conveyor 408 is positioned adjacent to the exit and the entrance of the second conveyor 408 is positioned adjacent to the transport device 402 for transporting the accumulator tank 600 to the exit. A robot 407 is provided at the rear end of the transport device 402, and the robot 407 transfers the gas hydrate-free reservoir tank 600 on the transport device 402 to the second conveyor 408.

As shown in fig. 10, in one embodiment of the present application, transporter 402 also includes a hydraulic ram 424.

The hydraulic push rod 424 is located at one side far away from the first conveyor belt 403, the hydraulic push rod 424 is matched with the lifting device 423 to enable the storage tank seat 422 to incline, the storage tank 600 conveniently slides into the storage tank seat 422, and after the storage tank 600 slides into the storage tank seat 422, the hydraulic push rod 424 is matched with the lifting device 423 to enable the storage tank seat 422 to return to a normal position.

In an embodiment of the present application, the constant temperature decomposition system 400 further includes a cold storage temperature sensor 409, an air leakage alarm 410 and a fourth controller 411, the cold storage temperature sensor 409 and the air leakage alarm 410 are disposed on an inner wall of the constant temperature cold storage 401, the cold storage temperature sensor 409 is used for detecting the temperature in the constant temperature cold storage 401 and sending a temperature signal, the fourth controller 411 receives the temperature signal and controls a temperature regulator 412 of the constant temperature cold storage 401 according to the temperature signal, so that the temperature in the constant temperature cold storage 401 is kept not higher than the decomposition temperature of the natural gas hydrate, thereby avoiding the natural gas hydrate from decomposing in the transportation process. The gas leakage alarm 410 is used for detecting the concentration of natural gas in the constant-temperature refrigeration house 401, and when the concentration of the natural gas in the constant-temperature refrigeration house 401 is greater than the safe concentration, the gas leakage alarm 410 gives an alarm, so that the safety problem caused by natural gas leakage is avoided.

As shown in fig. 12 and 13, in one embodiment of the present application, the constant temperature decomposition system 400 further comprises: a telescopic insulation tunnel 404, a tunnel temperature sensor 405 and a control device 406.

As shown in fig. 12 and 13, the telescopic heat-insulating passage 404 is disposed outside the constant-temperature freezer 401, one end of the telescopic heat-insulating passage 404 is connected to the entrance, and the other end of the telescopic heat-insulating passage 404 is used for being connected to the refrigerator car 500 that transports the accumulator tank 600.

The channel temperature sensor 405 is disposed in the telescopic heat-preserving channel 404, and is configured to detect a temperature of the telescopic heat-preserving channel 404 and send a temperature signal.

The control devices 406 are respectively connected to the aisle temperature sensors 405, and are configured to receive the temperature signals and control the opening of the loading/unloading doors of the refrigerator car 500 according to the temperature signals.

As shown in fig. 12 and 13, the first conveyor 403 includes an expansion conveyor 431 and a transport conveyor 432, the expansion conveyor 431 is disposed at the storage entrance, the control device 406 is connected to the expansion conveyor 431, and the control device 406 controls the expansion conveyor 431 to pass through the expansion heat preservation channel 404 and extend into the refrigerator car 500 according to the temperature signal.

Align the loading and unloading door of refrigerator car 500 with the warehouse entry, flexible heat preservation passageway 404 is stretched, and form the transport passageway in the draw-in groove of card income refrigerator car 500, open the warehouse entry, temperature sensor detects the temperature of flexible heat preservation passageway 404, and send temperature signal, when the temperature in flexible heat preservation passageway 404 is not higher than natural gas hydrate's decomposition temperature, controlling means 406 is according to temperature signal, open the loading and unloading door, and control flexible conveyer belt 431 stretches into refrigerator car 500, the work of the cold-stored conveyer belt in refrigerator car 500, transport accumulator 600 to flexible conveyer belt 431, then accumulator 600 gets into in the constant temperature freezer 401 through flexible conveyer belt 431 and transport conveyer belt 432. The flexible heat insulation pipe enables the temperature of the storage tank 600 in the transportation process not to be higher than the decomposition temperature of the natural gas hydrate, and therefore the natural gas hydrate is prevented from being decomposed in the transportation process.

Those skilled in the art will appreciate that the above-described products also include components essential to the operation of the products, and are not described in detail herein. The first controller, the second controller, the third controller, the fourth controller, and the control device may be the same component or different components.

The decomposition process of natural gas hydrates is specifically illustrated below:

the loading and unloading door of the refrigerator car is aligned with the warehousing port, the telescopic heat preservation channel is stretched and clamped into the clamping groove of the refrigerator car to form a transportation channel. Opening the warehouse entry, detecting the temperature of the telescopic heat preservation channel by a temperature sensor, and sending a temperature signal; when the temperature in the telescopic heat-insulation channel is not higher than the decomposition temperature of the natural gas hydrate, the control device opens the loading and unloading door according to the temperature signal and controls the telescopic conveyor belt to extend into the refrigerator car to be in butt joint with the refrigerator conveyor belt; the saving box is transported to the telescopic conveyor belt by the refrigerating conveyor belt, the saving box is transported to the transport conveyor belt by the telescopic conveyor belt, when the saving box in the refrigerator car is completely transported to the constant-temperature refrigeration house, the refrigerating conveyor belt, the telescopic conveyor belt and the transport conveyor belt stop running, the telescopic conveyor belt is retracted into the constant-temperature refrigeration house, the warehousing opening and the loading and unloading door are closed, and finally the telescopic heat-preservation through retraction is performed.

The hydraulic push rod is matched with the lifting device to enable the storage tank seat to incline, the transport conveyor belt transports the storage tank to the storage tank seat, and after the storage tank slides into the storage tank seat, the hydraulic push rod is matched with the lifting device to enable the storage tank seat to return to the original position. The transport vechicle drives the storage tank seat and transports the savings box to the below of decomposition device, and elevating gear rises and stretches into the intracavity of taking of decomposition device with the part of savings box. The telescopic control piece extends to drive the sealing ring to move and is clamped into the groove of the saving tank to form sealing connection, so that the first opening is sealed to form a sealing space in the taking cavity. Then the electric telescopic loading and unloading arm is stretched to be locked with the groove at the upper part of the cover body, and the cover body is rotated relative to the tank body, so that the cover body is separated from the tank body, and then the cover body is driven to retract. The telescopic rod is stretched to be locked with the groove on the upper part of the bottom plate and drives the bottom plate to rise so as to push the natural gas hydrate out of the tank body; meanwhile, the electric telescopic loading and unloading arm extends to be locked with the groove in the upper part of the kettle cover, and the kettle cover rotates relative to the kettle body, so that the kettle cover is separated from the kettle body. Then the kettle cover is driven to retract. The telescopic link extension drives the ejector pad motion, makes the ejector pad follow initial position to the motion of natural gas hydrate, and the cutting knife cuts natural gas hydrate back down, and the ejector pad pushes away the natural gas hydrate that comes down to cauldron body top, and natural gas hydrate falls into the cauldron internal through the mouth that drops to support on the sliding bottom. The electric telescopic loading and unloading arm extends to cover the kettle cover on the kettle body, rotates the kettle cover relative to the kettle body and presses the natural gas hydrate into the decomposition cavity, so that the kettle cover and the kettle body are locked; the electric telescopic loading and unloading arm is separated from the kettle cover and retracts; meanwhile, the electric telescopic loading and unloading arm extends to cover the cover body on the tank body and rotates the cover body relative to the tank body, so that the tank body and the cover body are locked, and the electric telescopic loading and unloading arm is separated from the cover body and retracts. The heating device heats the decomposing kettle to decompose the natural gas hydrate into liquid and natural gas. When the pressure in the decomposition cavity tends to be stable, the first controller controls the electromagnet to be electrified to attract the ferromagnetic part, so that the sliding bottom is fixed at the bottom of the decomposition kettle, the first controller controls the heating device to be powered off, the air pump extracts gas from the decomposition kettle and sends the gas into the dryer, and the air pump extracts gas from the dryer and stores the gas into the gas storage tank. The flowmeter is used for counting the volume of the gas stored in the gas storage device and sending a quantity signal. And after the gas in the decomposition kettle is completely discharged, closing the air pump. Injecting liquid nitrogen into the pipeline by the liquid nitrogen circulating device to cool the decomposition kettle until the temperature in the decomposition cavity is not higher than the decomposition temperature of the natural gas hydrate, and then closing the liquid nitrogen circulating device; simultaneously, the liquid pump extracts liquid from the decomposition kettle and stores the liquid into the liquid storage tank, and the liquid pump is closed after the liquid in the decomposition kettle is completely discharged. And when the volume of the gas does not reach the required volume, the third controller controls the moving distance of the pushing device according to the quantity signal to push the natural gas hydrate out of the tank body. When no natural gas hydrate in the saving tank exists, the telescopic control piece contracts to drive the sealing ring to move and is separated from the side wall of the saving tank, the lifting device descends to take the saving tank out of the decomposing device, the transportation vehicle transports the saving tank to the manipulator, the manipulator transports the saving tank to the second conveyor belt, and the second conveyor belt transports the saving tank to the warehouse outlet.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. In this application, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A decomposition device of NGH, which is used for a gas station and is characterized by comprising: a housing comprising an access chamber having a first opening;

the sealing device is arranged at the first opening and used for being connected with a storage tank filled with natural gas hydrate to seal the first opening;

the first opening device is arranged on the inner wall of the taking cavity and is used for separating or sealing the cover body of the saving tank from the tank body of the saving tank;

the decomposition kettle is fixed on the shell and comprises a kettle body and a kettle cover, the kettle body comprises a decomposition cavity with a second opening, the decomposition cavity is communicated with the taking cavity, and the kettle cover is used for sealing the second opening;

the second opening device is arranged on the inner wall of the taking cavity and used for separating or sealing the kettle cover and the kettle body;

the heating device is arranged on the kettle body;

the push-out device is used for pushing the natural gas hydrate in the storage tank into the taking cavity;

the cutting device is arranged in the taking cavity and is used for cutting the natural gas hydrate extending out of the storage tank;

the pushing device is arranged in the taking cavity and used for pushing the cut natural gas hydrate into the kettle body;

the liquid storage device is communicated with the decomposition kettle and is used for storing liquid generated after the natural gas hydrate is decomposed; and

and the gas storage device is communicated with the decomposition kettle and is used for storing the gas generated after the natural gas hydrate is decomposed.

2. The deconstituting device of claim 1, further comprising:

the sliding bottom is arranged in the decomposition cavity and sealed with the cavity wall of the decomposition cavity, and can slide relative to the decomposition kettle; and

the elastic supporting piece is arranged in the decomposition cavity and is supported between the sliding bottom and the cavity wall of the decomposition cavity;

the liquid inlet of the liquid storage device is located on the sliding bottom, and the air inlet of the air storage device is arranged close to the second opening.

3. The deconstituting device of claim 1, further comprising: the pipeline is arranged in the wall body of the kettle body;

the cooling liquid circulating device is connected with the pipeline and is used for circularly conveying cooling liquid into the pipeline; and

the heat insulation layer is arranged in the wall body of the kettle body and is positioned on one side, far away from the decomposition cavity, of the pipeline.

4. A disaggregation apparatus as claimed in claim 1,

further comprising: the first pressure sensor is arranged in the decomposition cavity and used for detecting the pressure in the decomposition cavity and sending a pressure signal; and

the first controller is connected with the first pressure sensor, the liquid storage device, the gas storage device and the heating device respectively, and is used for receiving the pressure signal and controlling the heating device to be powered off, the liquid storage device to be communicated with the decomposition cavity and the gas storage device to be communicated with the decomposition cavity according to the pressure signal.

5. The deconstituting device of claim 1, further comprising:

the pressure adjusting device is communicated with the taking cavity and is used for adjusting the pressure in the taking cavity;

the second pressure sensor is arranged in the taking cavity and used for detecting the pressure in the detection taking cavity and sending a pressure signal; and

and the second controller is respectively connected with the second pressure sensor and the pressure regulating device, and is used for receiving the pressure signal and controlling the pressure regulating device to be opened or closed according to the pressure signal.

6. A disaggregation apparatus as claimed in claim 1,

the pushing device comprises: the pushing block is provided with a dropping opening; and

one end of the telescopic rod is connected with the cavity wall of the taking cavity, one end of the telescopic rod is connected with the push block, the telescopic rod drives the push block to push the cut natural gas hydrate to the kettle body, and the cut natural gas hydrate falls into the kettle body from the shedding port;

the cutting device is a cutting knife which is arranged on the push block.

7. A deconstituting device according to claim 1, characterised in that said sealing means comprise: a seal ring disposed at the first opening; and

and one end of the telescopic control piece is connected with the shell, and the other end of the telescopic control piece is connected with the sealing ring and used for controlling the sealing ring to be connected with or separated from the accumulator tank.

8. The system of claim 1, further comprising:

the flowmeter is arranged on the gas storage device and used for detecting the quantity of the natural gas in the gas storage device and sending a quantity signal; and

and the third controller is respectively connected with the push-out device and the flowmeter and is used for receiving the quantity signal and controlling the movement distance of the push-out device according to the quantity signal.

9. An isothermal decomposition system for NGH for a gas station, comprising: the constant-temperature refrigeration house is provided with an inlet and an outlet;

the decomposition device of NGH of any one of claims 1 to 8, disposed within the constant temperature cold store;

the transportation device is arranged in the constant-temperature cold storage and is used for transporting the storage tank filled with the natural gas hydrate to the decomposition device, and the pushing device of the decomposition device is arranged on the transportation device; and

the inlet of the first conveyor belt is located at the warehousing port, and the outlet of the first conveyor belt is arranged close to the conveying device and used for conveying the accumulator tank to the conveying device.

10. The system of claim 9, further comprising:

the telescopic heat-preservation channel is arranged outside the constant-temperature refrigeration house, one end of the telescopic heat-preservation channel is connected with the warehouse entry, and the other end of the telescopic heat-preservation channel is used for being connected with a refrigeration car for transporting the saving tank;

the channel temperature sensor is arranged in the telescopic heat preservation channel and used for detecting the temperature of the telescopic heat preservation channel and sending a temperature signal; and

the control device is respectively connected with the channel temperature sensors and is used for receiving the temperature signals and controlling the opening of the loading and unloading door of the refrigerator car according to the temperature signals;

the first conveying belt comprises a telescopic conveying belt and a conveying belt, the telescopic conveying belt is arranged at the position of the storage opening, the control device is connected with the telescopic conveying belt, and the control device controls the telescopic conveying belt to penetrate through the telescopic heat preservation channel to extend into the refrigerator car according to the temperature signal.