CN218811565U - Heavy hydrocarbon device and system are taken off to natural gas - Google Patents
Heavy hydrocarbon device and system are taken off to natural gas Download PDFInfo
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- CN218811565U CN218811565U CN202221887946.0U CN202221887946U CN218811565U CN 218811565 U CN218811565 U CN 218811565U CN 202221887946 U CN202221887946 U CN 202221887946U CN 218811565 U CN218811565 U CN 218811565U
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- heavy hydrocarbon
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The utility model discloses a natural gas takes off heavy hydrocarbon device and system, take off the heavy hydrocarbon device and include: a heavy hydrocarbon storage tank; a first conduit in communication with the heavy hydrocarbon storage tank; a second conduit in communication with the heavy hydrocarbon storage tank; the distribution pipeline is arranged at the bottom of the heavy hydrocarbon storage tank; the first pipeline is connected with the distribution pipeline, and the distribution pipeline is provided with an air inlet end and a plurality of air nozzles. The utility model discloses a natural gas is from the inlet end input of distribution pipeline and from a plurality of air jets blowout, the liquid heavy hydrocarbon of cooperation second pipeline input to make the heavy hydrocarbon component intensive mixing gasification in liquid heavy hydrocarbon and the natural gas desorption, thereby reduce the operation complexity, improve economic benefits.
Description
Technical Field
The utility model relates to a liquefied natural gas field especially relates to a natural gas takes off heavy hydrocarbon device and system.
Background
Clean natural gas need separate out heavy hydrocarbon component about-45 ℃ to liquid before cryrogenic cooling in liquefied natural gas apparatus for producing, prevent that heavy hydrocarbon from causing the heat exchanger to freeze stifled at cryrogenic in-process, and the heavy hydrocarbon of isolating is after rewarming to the normal atmospheric temperature, delivers to the heavy hydrocarbon storage tank and stores, then loads into to the heavy hydrocarbon tank wagon outer defeated through heavy hydrocarbon loading pump pressurization again.
In the existing embodiment, due to the change of the natural gas components, the heavy hydrocarbon separated from the liquefied natural gas production device is less in amount, the component change is large, the density is unstable, and a loading pump is easy to generate cavitation, so that the loading operation is complex, and further the economic benefit is poor.
Accordingly, there is a need for improvements and developments in the art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide a natural gas and take off heavy hydrocarbon device and system, aim at solving and take off the problem that the heavy hydrocarbon operation is complicated to lead to economic benefits is not good among the prior art.
The utility model provides a technical scheme that technical problem adopted as follows:
a natural gas heavy hydrocarbon removal plant, comprising:
a heavy hydrocarbon storage tank;
a first conduit in communication with the heavy hydrocarbon storage tank;
a second conduit in communication with the heavy hydrocarbon storage tank;
the distribution pipeline is arranged at the bottom of the heavy hydrocarbon storage tank;
the first pipeline is connected with the distribution pipeline, and the distribution pipeline is provided with an air inlet end and a plurality of air nozzles.
The natural gas heavy hydrocarbon removal device, wherein, the distribution pipeline includes:
a main pipe;
a plurality of branch pipes connected to the main pipe, respectively;
wherein a plurality of air nozzles are arranged on the plurality of branch pipes.
The natural gas takes off heavy hydrocarbon device, wherein, take off heavy hydrocarbon device still includes:
a mesh enclosure structure arranged in the heavy hydrocarbon storage tank,
and the exhaust pipeline is connected with the mesh enclosure structure.
The natural gas heavy hydrocarbon removal device comprises a heavy hydrocarbon removal device,
the person in charge is followed heavy hydrocarbon storage tank long limit direction extends, and is a plurality of the branch pipe is followed the person in charge extending direction is the array distribution.
The natural gas heavy hydrocarbon removal device comprises a heavy hydrocarbon removal device,
the middle parts of the branch pipes are respectively connected with the main pipe, and the branch pipes are arranged in parallel.
The natural gas heavy hydrocarbon removal device is characterized in that a first control valve is arranged on the first pipeline and located outside the heavy hydrocarbon storage tank.
The natural gas heavy hydrocarbon device of taking off, wherein, the tip of second pipeline is located the distribution pipeline top, be provided with the second control valve on the second pipeline, the second control valve is located outside the heavy hydrocarbon storage tank.
The natural gas heavy hydrocarbon removal device, wherein, be equipped with the third control valve on the exhaust duct, the third control valve is located outside the heavy hydrocarbon storage tank.
The natural gas takes off heavy hydrocarbon device, wherein, take off heavy hydrocarbon device still includes:
and the liquid level meter is arranged on the heavy hydrocarbon storage tank.
A natural gas heavy hydrocarbon removal system, wherein, it includes as in any one of above-mentioned natural gas heavy hydrocarbon removal device
Has the beneficial effects that: the utility model provides a natural gas takes off heavy hydrocarbon device and system, take off the heavy hydrocarbon device and include: a heavy hydrocarbon storage tank; a first conduit in communication with the heavy hydrocarbon storage tank; a second conduit in communication with the heavy hydrocarbon storage tank; the distribution pipeline is arranged at the bottom of the heavy hydrocarbon storage tank; the first pipeline is connected with the distribution pipeline, and the distribution pipeline is provided with an air inlet end and a plurality of air nozzles. The utility model discloses a natural gas is from the inlet end input of distribution pipeline and from a plurality of air jets blowout, the liquid heavy hydrocarbon of cooperation second pipeline input to make the heavy hydrocarbon component intensive mixing gasification in liquid heavy hydrocarbon and the natural gas desorption, thereby reduce the operation complexity, improve economic benefits.
Drawings
Fig. 1 is the utility model discloses a heavy hydrocarbon device is taken off to natural gas's structural schematic.
Fig. 2 is a top view of the distribution pipe of the present invention.
Description of reference numerals:
100. a heavy hydrocarbon storage tank; 110. a first conduit; 111. a first control valve; 120. a second conduit; 121. a second control valve; 130. an exhaust duct; 131. a third control valve; 200. a distribution pipe; 210. a main pipe; 220. a branch pipe; 310. a mesh enclosure structure; 320. a liquid level meter.
Detailed Description
The utility model provides a natural gas takes off heavy hydrocarbon device and system, for making the utility model discloses a purpose, technical scheme and effect are clearer, more clear and definite, it is following right the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It should be further noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limitations of the present patent, and specific meanings of the above terms can be understood according to specific situations by those of ordinary skill in the art.
Natural gas is a combustible gas which is mainly a mixture of low-molecular alkanes and is contained in a formation, and the natural gas mainly contains methane, a small amount of heavy hydrocarbons, carbon dioxide, hydrogen sulfide, water and other impurities. The liquefied natural gas is prepared by liquefying natural gas in a gaseous state, wherein the natural gas can be liquefied at normal pressure and at the temperature of about-162 ℃, and the volume of the liquefied natural gas is about 1/625 of the volume of the gaseous state, so that the natural gas is convenient to store, transport and use.
Heavy hydrocarbon (generally, components with the boiling point higher than-160 ℃) is liquefied before methane in the natural gas liquefaction process due to the fact that the boiling point of the heavy hydrocarbon is higher than-160 ℃, and if the heavy hydrocarbon is not completely treated, the heavy hydrocarbon is solidified first, even ice blockage is caused, a cold box pipeline is blocked, and accidents are caused. The heavy hydrocarbon removing technology adopted at present mainly comprises an adsorption method, a cryogenic separation method, a washing method and the like.
Generally, in a liquefied natural gas production device, clean natural gas is required to be separated into heavy hydrocarbon components at about minus 45 ℃ before being cooled to liquid state in a deep cooling mode, so that the heavy hydrocarbon is prevented from causing the freezing and blocking of a heat exchanger in the deep cooling process, and the separated heavy hydrocarbon is sent to a heavy hydrocarbon storage tank for storage after being reheated to normal temperature. Then the heavy hydrocarbon is pressurized and filled by a heavy hydrocarbon loading pump to the heavy hydrocarbon tank car for outward transportation. Because of the change of natural gas composition, the heavy hydrocarbon volume that separates out among the liquefied natural gas apparatus for producing usually is less and the composition changes great, and the unstable loading pump of density produces cavitation loading operation complicacy easily, and loading exports economic benefits not good, and has certain safe risk in the loading process.
In order to solve the problem, the utility model provides a heavy hydrocarbon device is taken off to natural gas can reduce the current operation complexity that takes off the heavy hydrocarbon device to improve economic benefits, as shown in figure 1, it includes:
a heavy hydrocarbon storage tank 100;
a first conduit 110 in communication with said heavy hydrocarbon storage tank 100;
a second conduit 120 in communication with said heavy hydrocarbon storage tank 100;
a distribution pipeline 200 arranged at the bottom of the heavy hydrocarbon storage tank 100;
wherein, the first pipeline 110 is connected with the distribution pipeline 200, and the distribution pipeline 200 is provided with an air inlet end and a plurality of air nozzles.
It is worth explaining, carry BOG gas (being the natural gas) in to heavy hydrocarbon storage tank 100 by first pipeline 110, by second pipeline 120 to the inside liquid heavy hydrocarbon of carrying of heavy hydrocarbon storage tank 100, and natural gas input distribution pipeline 200 and from the blowout of distribution pipeline 200 different positions, can make the natural gas contact with liquid heavy hydrocarbon uniformly, thereby make liquid heavy hydrocarbon and natural gas intensive mixing in heavy hydrocarbon storage tank 100, and then make the heavy hydrocarbon component intensive mixing gasification in liquid heavy hydrocarbon and the natural gas carry out the desorption, thereby reduce the operation complexity, improve heavy hydrocarbon and break away from efficiency, and reduce cost and improve economic benefits.
It should be noted that natural gas specific gravity is about 0.65, and is less than air density, therefore the natural gas can move to the inside headspace of heavy hydrocarbon storage tank 100 after spouting from distribution pipeline 200 to be convenient for carry out the intensive mixing with the liquid heavy hydrocarbon of follow heavy hydrocarbon storage tank 100 top input.
Specifically, the heavy hydrocarbon storage tank 100 has three openings for communicating with the interior, the first pipe 110 includes a BOG gas inlet line located outside (e.g., above) the heavy hydrocarbon storage tank 100, and a dip pipe connected to the BOG gas inlet line, the dip pipe is connected to the gas inlet end of the distribution pipe 200 (i.e., the distribution column) at the bottom of the heavy hydrocarbon storage tank 100 through the above-mentioned one opening, and the distribution pipe 200 is provided with a plurality of gas nozzles, so that natural gas enters the distribution column 200 from the gas inlet end and is ejected from the plurality of gas nozzles; meanwhile, second pipeline 120 is the heavy hydrocarbon inlet liquid pipeline, it communicates through above-mentioned second opening and heavy hydrocarbon storage tank 100 top, that is to say, the end of heavy hydrocarbon inlet liquid pipeline 120 is located the top of heavy hydrocarbon storage tank 100, but is not limited to this, the end of heavy hydrocarbon inlet liquid pipeline 120 also can be located the middle part of heavy hydrocarbon storage tank 100, liquid heavy hydrocarbon passes through heavy hydrocarbon inlet liquid pipeline 120 and gets into the inside headspace of heavy hydrocarbon storage tank 100, thereby make liquid heavy hydrocarbon spill downwards from the top of heavy hydrocarbon storage tank 100, thereby locate above-mentioned from a plurality of air jets of distribution column pipe 200 blowout natural gas and carry out the intensive mixing, realize in the natural gas the purpose of heavy hydrocarbon component intensive mixing gasification in order to detach heavy hydrocarbon component. It is noted that the dip tube of the first conduit 110 is used to introduce BOG gas to the distribution conduit 200 at the bottom of the heavy hydrocarbon storage tank 100.
In the above embodiment, the heavy hydrocarbon storage tank 100 shown in fig. 1 is shown in the form of a horizontally placed cylinder, and in actual manufacturing, the heavy hydrocarbon storage tank 100 may be arranged in various shapes for different placement, for example, the cylinder is vertically placed, and it can be understood by those skilled in the art that the illustration is only for embodying the structural principle, and the specific arrangement may be modified according to actual use requirements.
In this embodiment, the distribution pipe 200 includes:
a main tube 210;
a plurality of branch pipes 220 connected to the main pipe 210, respectively;
wherein, a plurality of air outlets are arranged on a plurality of branch pipes 220.
Specifically, the distribution pipe 200 (the distribution tubulation) horizontal installation is in heavy hydrocarbon storage tank 100's bottom, and the inlet end sets up in being responsible for 210, and further, the protruding one end in the left side of being responsible for 210 is the inlet end, as shown in fig. 2, this embodiment is equipped with six branch pipes, but not limited to this, also can set up to 7, 8, is equipped with a plurality of air jets on every branch pipe 220 to make the natural gas carry to a plurality of branch pipes through being responsible for 210 inlet end, and then spout in a plurality of air jets from a plurality of branch pipes 220.
In this embodiment, the main pipe 210 extends along the long side direction of the heavy hydrocarbon storage tank 100, and the plurality of branch pipes 220 are distributed in an array along the extending direction of the main pipe 100.
Specifically, the adjacent two branch pipes 220 have the same interval, but are not limited thereto, and may be in a group of two, the interval between each group being different, and the interval between each group being the same.
Further, every branch pipe 220 is 2 meters long, and two adjacent branch pipes 220 interval 30 centimetres, is equipped with an air jet every interval 30 centimetres on every branch pipe to be convenient for the natural gas and carry out intensive mixing with liquid heavy hydrocarbon.
In this embodiment, the middle portions of the branch pipes 220 are connected to the main pipe 210, and the branch pipes 220 are arranged in parallel.
Specifically, as shown in fig. 2, the plurality of branch pipes 220 are linear, but not limited thereto, and the branch pipes may be provided in a bent shape, and the bent portions may be connected to the main pipe.
In other embodiments, the main pipe 210 may be connected to the side ends of a plurality of branch pipes 220.
In this embodiment, the heavy hydrocarbon removal apparatus further includes:
a mesh enclosure structure 310 disposed within the heavy hydrocarbon storage tank 100,
an exhaust duct 130 connected to the mesh cap structure 310.
Specifically, as shown in fig. 1, the mesh enclosure structure 310 is a defogging metal mesh enclosure for separating and removing liquid drops possibly carried by the mixed gas of the heavy hydrocarbon and the BOG gas, and the mesh enclosure structure 310 is disposed in the upper space of the heavy hydrocarbon storage tank 100, so that the gas moving upward can continue to be discharged through the exhaust pipe 130 (exhaust pipe line) after passing through the defogging metal mesh enclosure 310.
In this embodiment, a first control valve 111 is disposed on the first pipeline 110, and the first control valve 111 is located outside the heavy hydrocarbon storage tank 100. The first control valve 111 is a BOG inlet ball valve for controlling BOG gas to enter the heavy hydrocarbon storage tank 100.
In this embodiment, an end of the second pipeline 120 is located above the distribution pipeline 200, a second control valve 121 is disposed on the second pipeline 120, and the second control valve 121 is located outside the heavy hydrocarbon storage tank 110. Second control valve 121 is heavy hydrocarbon feed liquor stop valve for control liquid heavy hydrocarbon gets into heavy hydrocarbon storage tank 100.
In this embodiment, a third control valve 131 is disposed on the exhaust pipeline 130, and the third control valve 131 is located outside the heavy hydrocarbon storage tank 100. The second control valve 131 is an outlet shutoff valve.
In this embodiment, the heavy hydrocarbon removal apparatus further includes:
and the liquid level meter 320 is arranged on the heavy hydrocarbon storage tank 100.
As shown in fig. 1, a liquid level gauge 320 is connected to the right end of the heavy hydrocarbon storage tank 100 for measuring the liquid level, i.e. the content of liquid heavy hydrocarbons, in the heavy hydrocarbon storage tank 100.
The above embodiment is adopted in the utility model, the heavy hydrocarbon that produces in the daily production process of liquefied natural gas device can be brought to low reaches pipe network through the natural gas after mixing, and the liquefied natural gas device can need not set up the heavy hydrocarbon force (forcing) pump again, reduces cost such as equipment investment and equipment operation maintenance, power consumption, and reduces the heavy hydrocarbon and fills dress operation risk, also improves the calorific value that gets into low reaches pipe network BOG gas simultaneously.
Based on the above embodiment, the utility model provides a heavy hydrocarbon system is taken off to natural gas, wherein, it includes that the natural gas takes off heavy hydrocarbon device as in any one of above-mentioned scheme.
The utility model provides a natural gas takes off heavy hydrocarbon system, because of being provided with among the above-mentioned arbitrary technical scheme the natural gas take off the heavy hydrocarbon device to have above whole beneficial effect, no longer describe here.
To sum up, the utility model provides a natural gas takes off heavy hydrocarbon device and system, take off the heavy hydrocarbon device and include: a heavy hydrocarbon storage tank; a first conduit in communication with the heavy hydrocarbon storage tank; a second conduit in communication with the heavy hydrocarbon storage tank; the distribution pipeline is arranged at the bottom of the heavy hydrocarbon storage tank; the first pipeline is connected with the distribution pipeline, and the distribution pipeline is provided with an air inlet end and a plurality of air nozzles. The utility model discloses a natural gas is from distribution pipeline's inlet end input and from a plurality of air jets blowout, the liquid heavy hydrocarbon of cooperation second pipeline input to make the heavy hydrocarbon component intensive mixing gasification in liquid heavy hydrocarbon and the natural gas desorption, thereby reduce operation complexity, improve economic benefits.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. A natural gas heavy hydrocarbon removal plant, comprising:
a heavy hydrocarbon storage tank;
a first conduit in communication with the heavy hydrocarbon storage tank;
a second conduit in communication with the heavy hydrocarbon storage tank;
the distribution pipeline is arranged at the bottom of the heavy hydrocarbon storage tank;
the first pipeline is connected with the distribution pipeline, and the distribution pipeline is provided with an air inlet end and a plurality of air nozzles;
the distribution pipe includes:
a main pipe;
a plurality of branch pipes connected to the main pipe, respectively;
wherein a plurality of air nozzles are arranged on the branch pipes;
the heavy hydrocarbon removal device further comprises:
a mesh enclosure structure arranged in the heavy hydrocarbon storage tank,
the exhaust pipeline is connected with the mesh enclosure structure;
the first pipeline comprises a BOG air inlet pipeline and a sinking pipe connected with the BOG air inlet pipeline, and the sinking pipe is connected with the air inlet end of the main pipe; the second pipeline is a heavy hydrocarbon liquid inlet pipeline.
2. The natural gas heavy hydrocarbon removal plant of claim 1,
the person in charge is followed heavy hydrocarbon storage tank long limit direction extends, and is a plurality of the branch pipe is followed the person in charge extending direction is the array distribution.
3. The natural gas heavy hydrocarbon removal plant of claim 2,
the middle parts of the branch pipes are respectively connected with the main pipe, and the branch pipes are arranged in parallel.
4. The natural gas heavy hydrocarbon removal device of claim 1, wherein a first control valve is arranged on the first pipeline, and the first control valve is located outside the heavy hydrocarbon storage tank.
5. The natural gas heavy hydrocarbon removal apparatus of claim 1, wherein an end of the second pipeline is positioned above the distribution pipeline, and a second control valve is disposed on the second pipeline and is positioned outside the heavy hydrocarbon storage tank.
6. The natural gas heavy hydrocarbon removal device of claim 1, wherein a third control valve is arranged on the exhaust pipeline, and the third control valve is positioned outside the heavy hydrocarbon storage tank.
7. The natural gas de-heavy hydrocarbon unit of claim 1, further comprising:
and the liquid level meter is arranged on the heavy hydrocarbon storage tank.
8. A natural gas de-heavy hydrocarbon system, characterized in that it comprises a natural gas de-heavy hydrocarbon plant as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221887946.0U CN218811565U (en) | 2022-07-21 | 2022-07-21 | Heavy hydrocarbon device and system are taken off to natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221887946.0U CN218811565U (en) | 2022-07-21 | 2022-07-21 | Heavy hydrocarbon device and system are taken off to natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218811565U true CN218811565U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221887946.0U Active CN218811565U (en) | 2022-07-21 | 2022-07-21 | Heavy hydrocarbon device and system are taken off to natural gas |
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| Country | Link |
|---|---|
| CN (1) | CN218811565U (en) |
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2022
- 2022-07-21 CN CN202221887946.0U patent/CN218811565U/en active Active
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