CN214088423U - Natural gas dehydration device - Google Patents
Natural gas dehydration device Download PDFInfo
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- CN214088423U CN214088423U CN202022406379.XU CN202022406379U CN214088423U CN 214088423 U CN214088423 U CN 214088423U CN 202022406379 U CN202022406379 U CN 202022406379U CN 214088423 U CN214088423 U CN 214088423U
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- dehydration
- natural gas
- laval nozzle
- laval
- dewatering
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Abstract
The application provides a natural gas dewatering device belongs to natural gas dehydration technical field. The device that this application embodiment provided, through setting up two at least dehydration units, can dewater the natural gas through opening the dehydration unit in turn to be convenient for handle because the natural gas freezes to freeze stifled in the dehydration unit that causes, and then accelerate dehydration efficiency, reduce the power consumption. In the dehydration unit, have two piece at least Laval spray tubes in the dehydration jar, can carry out the rapid dehydration to the natural gas through Laval spray tube, guaranteed the aqueous vapor and lighter hydrocarbons separate out fast, do not occupy great volume again.
Description
Technical Field
The application relates to the technical field of natural gas dehydration, in particular to a natural gas dehydration device.
Background
Natural gas and shale gas are relatively clean energy sources and have huge reserves, but the natural gas often contains water with the temperature higher than the dew point temperature and a small amount of light hydrocarbon with high boiling point, if the natural gas is transported without being processed, in the transportation process, because the natural gas passes through a region with lower temperature or because the environmental temperature of a transportation pipeline is lower, the temperature of the gas is reduced, and the water and the light hydrocarbon mixed in the gas can be naturally condensed, thereby easily causing safety accidents such as pipeline freezing and blocking, flame-out and the like, therefore, in order to avoid the safety accidents such as flame-out or deflagration of gas equipment caused by the natural condensation of the water vapor and the light hydrocarbon in the natural gas and the shale gas in a pipe network, simultaneously improving the gas transmission capacity of the natural gas pipe network and reducing the freezing and blocking accidents before the natural gas enters a main pipe network in winter, a natural gas dehydration device is arranged at a natural gas and shale gas gathering and transportation station to preprocess the natural gas so as to purify the exported natural gas, reaches the national standard of product transportation and has high social benefit to the whole situation.
At present, the common natural gas dehydration device mainly adopts an adsorption method, namely triethylene glycol or a molecular sieve is used for adsorbing and removing water in natural gas, but the equipment required by the method has large occupied area and high energy consumption.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a natural gas dewatering device, can accelerate dehydration efficiency, reduces the power consumption, does not occupy great volume again. The technical scheme is as follows:
there is provided a natural gas dehydration plant, the plant comprising: the device comprises an air inlet, at least two dehydration units and an air outlet;
the dehydration unit includes: an air inlet valve, a dehydration tank and an air outlet valve which are connected in sequence through pipelines;
this dewatering tank includes: the device comprises a tank body, two fixed plates and at least two Laval nozzles;
the laval nozzle has at least one necking section, two ends of the laval nozzle are respectively arranged in the two fixing plates in a penetrating way, the inlet of the laval nozzle is communicated with the inlet of the tank body, and the outlet of the laval nozzle is communicated with the outlet of the tank body.
In one possible design, the dewatering tank is cylindrical.
In one possible design, the distance between each laval nozzle and the adjacent laval nozzle is a predetermined distance.
In one possible design, the number of laval nozzles is 4-20.
In one possible design, the number of neck sections on the laval nozzle is 2-4.
In one possible design, the laval nozzle and the fixing plate are connected by welding or strength expansion.
In one possible embodiment, at least one support plate is arranged between the two fastening plates, in which support plate the laval nozzle is inserted.
In one possible design, the device further comprises a support frame, a support ear and a support flat bar;
the support frame is a cuboid, and the dehydration tank is positioned in an inner cavity of the support frame;
the supporting lug is fixed on the inner wall of the supporting frame and is used for supporting the supporting flat bar;
the support flat bar is sleeved on the dewatering tank along the circumferential direction.
In one possible design, the device further comprises a plurality of flanges for securing each of the inlet and outlet valves in the duct.
In one possible design, the device further comprises a control unit;
the control unit is electrically coupled with the air inlet valve and the air outlet valve.
The device that this application embodiment provided, through setting up two at least dehydration units, can dewater the natural gas through opening the dehydration unit in turn to be convenient for handle because the natural gas freezes to freeze stifled in the dehydration unit that causes, thereby accelerate dehydration efficiency, reduce the power consumption. In the dehydration unit, have two piece at least Laval spray tubes in the dehydration jar, can carry out the rapid dehydration to the natural gas through Laval spray tube, guaranteed the aqueous vapor and lighter hydrocarbons separate out fast, do not occupy great volume again.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a natural gas dehydration plant provided by an embodiment of the present application;
fig. 2 is a schematic top view of a natural gas dehydration device provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a dewatering tank 22 according to an embodiment of the present application;
fig. 4 is a schematic view of the internal structure of a dewatering tank 22 according to an embodiment of the present invention.
The reference numerals for the various parts in the drawings are illustrated below:
1-an air inlet;
2-a dehydration unit;
21-an air inlet valve;
22-a dehydration tank;
221-tank body;
222-a fixed plate;
223-laval nozzle;
2231-a neck-reducing section;
224-a support plate;
23-an air outlet valve;
3-air outlet;
4-a support frame;
5-supporting the ear;
6-supporting the flat bar;
7-flange.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Fig. 1 is a schematic structural diagram of a natural gas dehydration device provided in an embodiment of the present application, and fig. 2 is a schematic structural diagram of a natural gas dehydration device provided in an embodiment of the present application, in a top view, please refer to fig. 1 and fig. 2, the device includes: an air inlet 1, at least two dewatering units 2 and an air outlet 3; the dehydration unit 2 includes: an air inlet valve 21, a dewatering tank 22 and an air outlet valve 23 which are connected in sequence through pipelines; the dehydration tank 22 includes: the tank body 221, two fixing plates 222 and at least two Laval nozzles 223; the laval nozzle 223 has at least one necking section 2231, two ends of the laval nozzle 223 penetrate through the two fixing plates 222, an inlet of the laval nozzle 223 is communicated with an inlet of the tank 221, and an outlet of the laval nozzle 223 is communicated with an outlet of the tank 221.
The working principle of the device is described in detail below:
when the device is in use, natural gas enters the dehydration tank 22 through the gas inlet 1 and the gas inlet valve 21, enters the inlet of the laval nozzle 223 from the inlet of the dehydration tank 22, is dehydrated in the laval nozzle 223, flows to the outlet of the dehydration tank 22 through the outlet of the laval nozzle 223, and is discharged to the gas outlet 3 through the gas outlet valve 23. Wherein the air inlet valve 21 and the air outlet valve 23 play a role of controlling whether the corresponding dehydration unit 2 performs dehydration work. The device utilizes the physical structure of Laval spray tube 223, based on the supersonic speed dehydration principle, carries out physics cooling through carrying out the compression expansion to high-pressure gas to make the vapor in the gas cool off, thereby be convenient for aqueous vapor and lighter hydrocarbons's precipitation. Because the natural gas is after the physics cooling under the effect of Laval spray tube 223, aqueous vapor in the gas is difficult to avoid freezing on equipment, through setting up the mode that two at least dehydration tanks 22 switch over each other, is convenient for melt ice, moreover, uses the device to dewater the natural gas, because the device is sled dress formula structure, the space that occupies is less.
The device that this application embodiment provided, through setting up two at least dehydration unit 2, can dewater the natural gas through opening dehydration unit 2 in turn to be convenient for handle because the frozen stifled in dehydration unit 2 that causes of natural gas, thereby accelerate dehydration efficiency, reduce the power consumption. In dehydration unit 2, have two piece at least Laval spray tubes 223 in the dehydration tank 22, can carry out the rapid dehydration to the natural gas through Laval spray tube 223, guaranteed the rapid precipitation of aqueous vapor and lighter hydrocarbons, do not occupy great volume again.
The following details the structure and the working principle of each part of the device:
fig. 3 is a schematic structural diagram of a dewatering tank 22 according to an embodiment of the present application, please refer to fig. 3, in a possible design, the dewatering tank 22 is cylindrical, and the cylindrical dewatering tank 22 occupies a small space and has a large volume, which is beneficial to smooth dewatering process.
Fig. 4 is a schematic diagram of an internal structure of the dewatering tank 22 according to an embodiment of the present disclosure, please refer to fig. 4, in a possible design, a distance between each laval nozzle 223 and the adjacent laval nozzle 223 is a preset distance, and the preset distance may be set according to an inner diameter of the tank 221 and an actual requirement, which is not limited in this embodiment, and the above structure ensures that the dewatering process in each laval nozzle in the dewatering tank 22 is performed synchronously, so as to improve the dewatering efficiency. Moreover, the structure can also enable the adjacent three Laval tubes to form a regular triangle stable supporting structure, the safety of the Laval nozzle 223 subjected to large internal pressure is guaranteed, the natural gas handling capacity of the whole set of equipment is increased, and meanwhile, the structure is more adjustable.
In one possible design, the number of laval nozzles 223 is 4-20, for example, 7, 6 of which form a regular hexagon, and the other 1 is located at the center of the regular hexagon.
In one possible design, the number of necking segments 2231 on the laval nozzle 223 is 2-4, thereby increasing the dewatering efficiency of the laval nozzle 223.
In a possible design, the laval nozzle 223 is connected to the fixing plate 222 by welding or expansion, so that the connection is relatively firm, and the laval nozzle 223 can work normally under a condition of relatively high internal pressure.
In a possible design, there is at least one supporting plate 224 between the two fixing plates 222, and the laval nozzle 223 is inserted into the supporting plate 224, so that the supporting plate 224 supports the laval nozzle 223, and the laval nozzle 223 can work normally under the condition of large internal pressure. In one possible design, the number of support plates 224 may be 2-4.
In one possible design, the device also comprises a support frame 4, support ears 5 and support flat bars 6; the supporting frame 4 is a cuboid, and the dewatering tank 22 is positioned in the inner cavity of the supporting frame 4; the supporting lug 5 is fixed on the inner wall of the supporting frame 4 and is used for supporting the supporting flat bar 6; the support straps 6 are fitted circumferentially around the dewatering tank 22.
Based on the structure, the dewatering tank 22 can be firmly fixed in the support frame 4, and the whole set of device is integrated on the skid-mounted equipment of the support frame 4, so that the whole set of device is convenient to fix and transport, and the occupied space of the whole set of device is further reduced.
In a possible design, the support frame 4, the support lugs 5 and the support flat bars 6 are all made of steel, so that the device is firm in structure and not easy to damage.
In one possible design, the device further comprises a plurality of flanges 7 for securing each of the inlet and outlet valves 21, 23 in the duct, thereby facilitating the servicing and replacement of each of the inlet and outlet valves 21, 23.
In one possible design, the device further comprises a control unit; the control unit is electrically coupled to both the inlet valve 21 and the outlet valve 23. Through the control unit, can carry out remote control to admission valve 21 and air outlet valve 23, use manpower sparingly.
In a possible design, the automatic switching time can be set based on the control unit, so that the control unit can automatically switch different dewatering units 2 at preset intervals, thereby further saving manpower and improving dewatering efficiency.
All the above optional technical solutions may be combined arbitrarily to form optional embodiments of the present application, and are not described herein again.
The device that this application embodiment provided, through setting up two at least dehydration unit 2, can dewater the natural gas through opening dehydration unit 2 in turn to be convenient for handle because the frozen stifled in dehydration unit 2 that causes of natural gas, thereby accelerate dehydration efficiency, reduce the power consumption. In dehydration unit 2, have two piece at least Laval spray tubes 223 in the dehydration tank 22, can carry out the rapid dehydration to the natural gas through Laval spray tube 223, guaranteed the rapid precipitation of aqueous vapor and lighter hydrocarbons, do not occupy great volume again.
In one possible design, the device further comprises a control unit; the control unit is electrically coupled to both the inlet valve 21 and the outlet valve 23. Through the control unit, can carry out remote control to admission valve 21 and air outlet valve 23, use manpower sparingly, furtherly, can set for automatic switch-over time based on this the control unit, make this the control unit can carry out automatic switch-over to different dewatering unit 2 at every preset time to further use manpower sparingly, improved dehydration efficiency.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A natural gas dehydration apparatus, characterized in that said apparatus comprises: an air inlet (1), at least two dewatering units (2) and an air outlet (3);
the dewatering unit (2) comprises: an air inlet valve (21), a dewatering tank (22) and an air outlet valve (23) which are connected in sequence through pipelines;
the dewatering tank (22) comprises: the device comprises a tank body (221), two fixing plates (222) and at least two Laval nozzles (223);
the laval nozzle (223) is provided with at least one necking section (2231), two ends of the laval nozzle (223) are respectively arranged in the two fixing plates (222) in a penetrating mode, an inlet of the laval nozzle (223) is communicated with an inlet of the tank body (221), and an outlet of the laval nozzle (223) is communicated with an outlet of the tank body (221).
2. The apparatus according to claim 1, characterized in that the dewatering tank (22) is cylindrical.
3. The device according to claim 1, characterized in that the distance between each laval nozzle (223) and the adjacent laval nozzle (223) is a predetermined distance.
4. The device according to claim 1, characterized in that the number of laval nozzles (223) is 4-20.
5. The device according to claim 1, characterized in that the number of neck sections (2231) on the laval nozzle (223) is 2-4.
6. The device according to claim 1, characterized in that the connection between the laval nozzle (223) and the fixing plate (222) is by means of welding or strength expansion.
7. The device according to claim 1, characterized in that between the two fixed plates (222) there is at least one support plate (224), the laval nozzle (223) being inserted in the support plate (224).
8. The device according to claim 1, characterized in that it further comprises a support frame (4), support ears (5) and support flat bars (6);
the support frame (4) is a cuboid, and the dewatering tank (22) is positioned in an inner cavity of the support frame (4);
the supporting lug (5) is fixed on the inner wall of the supporting frame (4) and is used for supporting the supporting flat bar (6);
the support flat bar (6) is sleeved on the dewatering tank (22) along the circumferential direction.
9. The device according to claim 1, characterized in that it further comprises a plurality of flanges (7) for fixing each inlet (21) and outlet (23) valve in the duct.
10. The device of claim 1, further comprising a control unit;
the control unit is electrically coupled with the air inlet valve (21) and the air outlet valve (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022406379.XU CN214088423U (en) | 2020-10-26 | 2020-10-26 | Natural gas dehydration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022406379.XU CN214088423U (en) | 2020-10-26 | 2020-10-26 | Natural gas dehydration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214088423U true CN214088423U (en) | 2021-08-31 |
Family
ID=77445290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022406379.XU Active CN214088423U (en) | 2020-10-26 | 2020-10-26 | Natural gas dehydration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214088423U (en) |
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2020
- 2020-10-26 CN CN202022406379.XU patent/CN214088423U/en active Active
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