CN213202939U - Device for preparing CNG from natural gas hydrate - Google Patents
Device for preparing CNG from natural gas hydrate Download PDFInfo
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- CN213202939U CN213202939U CN202021642363.2U CN202021642363U CN213202939U CN 213202939 U CN213202939 U CN 213202939U CN 202021642363 U CN202021642363 U CN 202021642363U CN 213202939 U CN213202939 U CN 213202939U
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- hydrate
- natural gas
- gas
- microwave
- pipe
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- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title claims abstract description 41
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 115
- 239000003345 natural gas Substances 0.000 claims abstract description 56
- 239000007789 gas Substances 0.000 claims abstract description 51
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 42
- 238000007791 dehumidification Methods 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000010079 rubber tapping Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 238000003786 synthesis reaction Methods 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000011049 filling Methods 0.000 abstract description 3
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 natural gas hydrates Chemical class 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a device for preparing CNG from natural gas hydrate, which relates to the field of natural gas storage and transportation, and comprises a hydrate connecting end and a CNG synthesizing end; the hydrate tapping end comprises a hydrate microwave decomposition box, a microwave generator and a dehumidification tank, wherein the top of the hydrate microwave decomposition box is provided with a box body upper cover plate, the surface of the hydrate microwave decomposition box is provided with the microwave generator, the bottom of the hydrate microwave decomposition box is provided with a water drainage pipe, the surface of the hydrate microwave decomposition box is provided with an exhaust pipe, the exhaust pipe is connected with the bottom of the dehumidification tank, the top of the dehumidification tank is provided with a gas delivery pipe, and the tail; the synthetic end of CNG includes natural gas compressor, pipeline parallel connection ware, gas holder, and natural gas compressor is connected with pipeline parallel connection ware, gas holder through the gas-supply pipe, the utility model discloses utilize the unique heating performance of microwave, carry out quick, energy-conserving, safe decomposition to natural gas hydrate to prepare into the CNG filling after the dehumidification of dehydrating unit, the utility model provides security, the convenience that the natural gas used are improved.
Description
Technical Field
The utility model relates to a natural gas warehousing and transportation field especially relates to a device of natural gas hydrate preparation CNG, specifically is a prepare into CNG's device after decomposing natural gas hydrate fast.
Background
The huge resource potential of natural gas hydrate has attracted general attention in the oil and gas industry, and the research direction is not limited to the aspect of resource value, but also covers a plurality of fields such as hydrate prevention and control, hydrate utilization, potential influence of hydrate on the environment and the like. Among them, the research on hydrate utilization technology is relatively active in recent years, and has become a new key field in the research on natural gas hydrates.
In the hydrate utilization technology, research on hydrate storage and transportation natural gas technology is a major hot spot at present, and the research not only relates to key technologies such as rapid hydrate synthesis, safe hydrate storage and transportation, hydrate regasification and the like, but also relates to economic feasibility of the hydrate storage and transportation technology relative to the existing natural gas storage and transportation technology. Research shows that the hydrate is used for natural gas storage and transportation, so that the natural gas can be stored and transported in a solid state, the storage and transportation mode is more flexible and convenient, the cost for pipeline construction and maintenance can be saved, and a novel gas supply way is provided for remote areas without pipeline facilities or without the need of laying pipelines.
CNG (Compressed Natural Gas, CNG for short) is Natural Gas which is pressurized and stored in a container in a gaseous state, and besides Natural Gas in oil fields and Natural Gas fields, the Compressed Natural Gas can also be used for artificially producing biogas (the main component is methane), and the Compressed Natural Gas has the same composition as pipeline Natural Gas, and the main component is methane (CH)4) CNG is a common natural gas storage and transportation method, and is very convenient.
But CNG is a big difficult problem in the use, and the warehousing and transportation of CNG needs high safeguard measure to the cost of warehousing and transportation is higher than natural gas hydrate a lot, and based on above-mentioned problem, the utility model discloses the device provides a device of natural gas hydrate preparation CNG, has utilized low-cost, the security of natural gas hydrate warehousing and transportation, and the convenience that CNG used, with security, the convenience that improves the natural gas use, reduces the use cost of natural gas.
Disclosure of Invention
An object of the utility model is to provide a device of natural gas hydrate preparation CNG utilizes the unique heating performance of microwave, carries out quick, energy-conserving, safe decomposition to natural gas hydrate to prepare into the CNG filling after the dehydrating unit dehumidification, the utility model discloses device convenient operation, be convenient for maintain, can build different specifications according to actual demand, can build to by the natural gas hydrate repository, directly turn into CNG with the natural gas hydrate in the repository, utilized low-cost, the security of natural gas hydrate warehousing and transportation, and the convenience that CNG used, improved the security, the convenience that the natural gas used, reduced the use cost of natural gas.
The embodiment of the utility model provides a device of natural gas hydrate preparation CNG, including hydrate branch end, CNG synthesis end.
Hydrate shunting end includes hydrate microwave decomposition case, microwave generator, dehumidification jar, the box upper cover plate has been arranged at hydrate microwave decomposition case top, microwave generator has been arranged on hydrate microwave decomposition case surface, the drain pipe has been arranged to hydrate microwave decomposition bottom of the case portion, the valve has been arranged on the drain pipe, the blast pipe has been arranged on hydrate microwave decomposition case surface, valve, flowmeter have been arranged on the blast pipe, the blast pipe is connected with the dehumidification tank bottom, the viewing aperture has been arranged on the dehumidification tank surface, the support has been arranged to the dehumidification tank bottom, the gas-supply pipe has been arranged at the dehumidification tank top, the valve has been arranged on the gas-supply pipe, the gas-supply flange has been arranged to the gas-supply pipe end.
Hydrate microwave decomposition case includes supporting layer, microwave heating layer, the microwave heating layer is arranged inside the supporting layer, the microwave heating layer is connected through the antenna with microwave generator.
The CNG synthesis end comprises a natural gas compressor, a pipeline parallel connector and a gas storage tank, wherein the natural gas compressor is connected with a gas pipe, a valve and a flowmeter are arranged on the gas pipe, a gas inlet flange is arranged at the tail end of the gas pipe, the natural gas compressor is connected with the pipeline parallel connector through the gas pipe, and the pipeline parallel connector is connected with the gas storage tank through the gas pipe.
The pipeline parallel connector is connected with the plurality of gas storage tanks through a plurality of gas transmission pipes, and a gate valve is arranged on the pipeline parallel connector and used for controlling the opening/closing of the gas transmission pipes.
Preferably, the microwave zone of heating includes antenna pedestal, antenna head, guided wave face, the antenna pedestal is connected with the antenna, the antenna head is arranged in antenna pedestal surface, the antenna head orientation is inside for hydrate microwave decomposition case, the guided wave face is arranged in the antenna head outside.
The hydrate microwave decomposition box is used for decomposing the natural gas hydrate by microwave heating.
The upper cover plate of the box body is used for placing the natural gas hydrate into the hydrate microwave distribution box, when the upper cover plate of the box body is used, the standard natural gas hydrate block is placed into the hydrate microwave decomposition box by opening the upper cover plate of the box body, and then the upper cover plate of the box body is closed.
Preferably, the upper cover plate of the box body is hermetically connected with the hydrate microwave decomposition box in a manner of bolt connection, buckle connection and other conventional sealing connection manners.
And the water discharge pipe is used for discharging water in the hydrate microwave distribution box after the natural gas hydrate is decomposed.
The exhaust pipe is used for discharging natural gas decomposed in the hydrate microwave tapping box.
The flow meter is used for recording the volume of the transmitted natural gas in real time.
The dehumidification jar is used for the natural gas dehumidification that will decompose, the top cap has been arranged at the dehumidification tank deck portion for change the dehumidification filter core, the viewing aperture is used for observing the inside water absorption capacity of dehumidification filter core, the gas-supply pipe is used for carrying the natural gas after the dehumidification to the synthetic end of CNG.
The gas transmission flange and the gas inlet flange are used for connecting the hydrate connection end and the CNG synthesis end in a sealing mode.
The natural gas compressor is used for compressing natural gas into CNG.
The pipeline parallel connector is used for storing prepared CNG into the gas storage tank, and the gate valve is used for controlling the CNG storage target gas storage tank during use.
The supporting layer is made of stainless steel.
The drain pipe, the exhaust pipe and the gas transmission pipe are made of stainless steel.
And the inner walls of the drain pipe and the exhaust pipe are provided with waterproof corrosion coatings.
An anti-corrosion coating is arranged inside the gas conveying pipe.
The utility model discloses the specification of device can be adjusted according to actual demand.
The use method of the device for preparing CNG from natural gas hydrate comprises the following steps:
And 2, opening a valve on the exhaust pipe, starting the microwave generator to decompose the natural gas hydrate, and enabling the natural gas to enter the dehumidification tank through the exhaust pipe.
And 3, inputting the natural gas into a CNG synthesis end after the natural gas is dehumidified by the dehumidification tank.
And 4, preparing the CNG from the natural gas by a natural gas compressor.
And 5, storing the CNG into the gas storage tank through the pipeline parallel connector.
And 6, after the natural gas hydrate is decomposed, opening a drain pipe to drain water in the hydrate microwave decomposition tank.
The utility model discloses a device beneficial effect of natural gas hydrate preparation CNG is: the utility model discloses utilize the unique heating performance of microwave, carry out quick, energy-conserving, safe decomposition to natural gas hydrate to prepare into the CNG filling after the dehydrating unit dehumidification, the utility model discloses device convenient operation, be convenient for maintain, can build different specifications according to the actual demand, can build to by the natural gas hydrate repository, directly turn into CNG with natural gas hydrate in the repository, utilized low cost, the security of natural gas hydrate warehousing and transportation, and the convenience that CNG used, improved security, the convenience that the natural gas used, reduced the use cost of natural gas.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a hydrate tap structure.
Fig. 2 is a schematic diagram of the structure of CNG synthesis end.
Fig. 3 is a schematic structural diagram of a hydrate microwave decomposition box.
Reference numerals: 1. the device comprises a hydrate microwave decomposition box 2, a box body upper cover plate 3, a microwave generator 4, a water discharge pipe 5, a valve 6, an exhaust pipe 7, a flow meter 8, a dehumidification tank 9, an observation port 10, a support 11, a gas pipe 12, a gas transmission flange 13, a gas inlet flange 14, a natural gas compressor 15, a pipeline parallel device 16, a gas storage tank 17, a support layer 18 and a microwave heating layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, an embodiment of the present invention provides an apparatus for preparing CNG from natural gas hydrate, including a hydrate connection end and a CNG synthesis end.
Hydrate shunting end includes hydrate microwave decomposition case 1, microwave generator 3, dehumidification jar 8, box upper cover plate 2 has been arranged at hydrate microwave decomposition case 1 top, microwave generator 3 has been arranged on 1 surface of hydrate microwave decomposition case, drain pipe 4 has been arranged to hydrate microwave decomposition case 1 bottom, valve 5 has been arranged on drain pipe 4, blast pipe 6 has been arranged on 1 surface of hydrate microwave decomposition case, valve 5, flowmeter 7 have been arranged on blast pipe 6, blast pipe 6 is connected with dehumidification jar 8 bottom, viewing aperture 9 has been arranged on dehumidification jar 8 surface, support 10 has been arranged to dehumidification jar 8 bottom, gas-supply pipe 11 has been arranged at dehumidification jar 8 top, valve 5 has been arranged on gas-supply pipe 11, gas-supply pipe 11 end has arranged gas transmission flange 12.
Hydrate microwave decomposition case 1 includes supporting layer 17, microwave heating layer 18 arranges inside supporting layer 17, microwave heating layer 18 is connected through the antenna with microwave generator 3.
The synthetic end of CNG includes natural gas compressor 14, pipeline parallel connection ware 15, gas holder 16, natural gas compressor 14 is connected with gas-supply pipe 11, valve 5, flowmeter 7 have been arranged on the gas-supply pipe 11, gas inlet flange 13 has been arranged to the 11 end of gas-supply pipe, natural gas compressor 14 is connected with pipeline parallel connection ware 15 through gas-supply pipe 11, pipeline parallel connection ware 15 is connected with gas holder 16 through gas-supply pipe 11.
The pipe parallel connector 15 is connected with a plurality of air storage tanks 16 through a plurality of air conveying pipes 11, and a gate valve is arranged on the pipe parallel connector 15 and used for controlling the opening/closing of the air conveying pipes 11.
Preferably, the microwave heating layer 18 includes antenna pedestal, antenna head, guided wave face, the antenna pedestal is connected with the antenna, the antenna head arranges in antenna pedestal surface, the antenna head orientation is inside hydrate microwave decomposition case 1, the guided wave face arranges in the antenna head outside.
The hydrate microwave decomposition box 1 is used for decomposing natural gas hydrate by microwave heating.
The upper cover plate 2 of the box body is used for placing natural gas hydrate into the hydrate microwave distribution box, when the upper cover plate 2 of the box body is opened to place the natural gas hydrate standard block into the hydrate microwave decomposition box 1, and then the upper cover plate 2 of the box body is closed.
Preferably, the upper cover plate 2 of the box body is hermetically connected with the hydrate microwave decomposition box 1 in a manner of bolt connection, buckle connection and other conventional sealing connection manners.
And the water discharge pipe 4 is used for discharging water in the hydrate microwave distribution box after the natural gas hydrate is decomposed.
And the exhaust pipe 6 is used for exhausting natural gas decomposed in the hydrate microwave tapping box.
The flow meter 7 is used to record the volume of natural gas delivered in real time.
The dehumidification jar 8 is used for the natural gas dehumidification that will decompose, the top cap has been arranged at dehumidification jar 8 tops for change the dehumidification filter core, viewing aperture 9 is used for observing the inside water absorption capacity of dehumidification filter core, gas-supply pipe 11 is used for carrying the natural gas after the dehumidification to the synthetic end of CNG.
The gas transmission flange 12 and the gas inlet flange 13 are used for connecting the hydrate connection end and the CNG synthesis end in a sealing mode.
The natural gas compressor 14 is used to compress natural gas into CNG.
The pipe parallel 15 is used for storing prepared CNG into the gas storage tank 16, and controls the target gas storage tank 16 through a gate valve when in use.
The supporting layer 17 is made of stainless steel.
The drain pipe 4, the exhaust pipe 6 and the gas transmission pipe 11 are made of stainless steel.
And waterproof corrosion coatings are arranged on the inner walls of the drain pipe 4 and the exhaust pipe 6.
An anti-corrosion coating is arranged inside the gas transmission pipe 11.
The utility model discloses the specification of device can be adjusted according to actual demand.
The use method of the device for preparing CNG from natural gas hydrate comprises the following steps:
And 2, opening a valve 5 on the exhaust pipe 6, starting the microwave generator 3 to decompose the natural gas hydrate, and enabling the natural gas to enter a dehumidification tank 8 through the exhaust pipe 6.
And 3, inputting the natural gas into a CNG synthesis end after the natural gas is dehumidified by the dehumidification tank 8.
And 4, preparing the CNG from the natural gas by a natural gas compressor 14.
And 5, storing the CNG into a gas storage tank 16 through a pipeline parallel device 15.
And 6, after the natural gas hydrate is decomposed, opening a drain pipe 4 to drain water in the hydrate microwave decomposition tank 1.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. The device for preparing CNG from natural gas hydrate is characterized by comprising a hydrate connection end and a CNG synthesis end;
the hydrate tapping end comprises a hydrate microwave decomposition box (1), a microwave generator (3) and a dehumidification tank (8), a box upper cover plate (2) is arranged at the top of the hydrate microwave decomposition box (1), the microwave generator (3) is arranged on the surface of the hydrate microwave decomposition box (1), a drain pipe (4) is arranged at the bottom of the hydrate microwave decomposition box (1), a valve (5) is arranged on the drain pipe (4), an exhaust pipe (6) is arranged on the surface of the hydrate microwave decomposition box (1), the valve (5) and a flowmeter (7) are arranged on the exhaust pipe (6), the exhaust pipe (6) is connected with the bottom of the dehumidification tank (8), an observation port (9) is arranged on the surface of the dehumidification tank (8), a support (10) is arranged at the bottom of the dehumidification tank (8), and a gas conveying pipe (11) is arranged at the top of the dehumidification tank (8, a valve (5) is arranged on the gas pipe (11), and a gas transmission flange (12) is arranged at the tail end of the gas pipe (11);
the hydrate microwave decomposition box (1) comprises a supporting layer (17) and a microwave heating layer (18), wherein the microwave heating layer (18) is arranged inside the supporting layer (17), and the microwave heating layer (18) is connected with a microwave generator (3) through an antenna;
the CNG synthesis end comprises a natural gas compressor (14), a pipeline parallel connector (15) and a gas storage tank (16), wherein the natural gas compressor (14) is connected with a gas pipe (11), a valve (5) and a flow meter (7) are arranged on the gas pipe (11), a gas inlet flange (13) is arranged at the tail end of the gas pipe (11), the natural gas compressor (14) is connected with the pipeline parallel connector (15) through the gas pipe (11), and the pipeline parallel connector (15) is connected with the gas storage tank (16) through the gas pipe (11).
2. An apparatus for preparing CNG from natural gas hydrate according to claim 1, wherein the supporting layer (17) is made of stainless steel.
3. The device for preparing CNG from natural gas hydrate according to claim 1, wherein the drain pipe (4), the exhaust pipe (6) and the gas transmission pipe (11) are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021642363.2U CN213202939U (en) | 2020-08-11 | 2020-08-11 | Device for preparing CNG from natural gas hydrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021642363.2U CN213202939U (en) | 2020-08-11 | 2020-08-11 | Device for preparing CNG from natural gas hydrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213202939U true CN213202939U (en) | 2021-05-14 |
Family
ID=75838806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021642363.2U Expired - Fee Related CN213202939U (en) | 2020-08-11 | 2020-08-11 | Device for preparing CNG from natural gas hydrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213202939U (en) |
-
2020
- 2020-08-11 CN CN202021642363.2U patent/CN213202939U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210514 |