CN212425975U - Circulating natural gas molecular sieve dehydration device - Google Patents
Circulating natural gas molecular sieve dehydration device Download PDFInfo
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- CN212425975U CN212425975U CN202020764263.0U CN202020764263U CN212425975U CN 212425975 U CN212425975 U CN 212425975U CN 202020764263 U CN202020764263 U CN 202020764263U CN 212425975 U CN212425975 U CN 212425975U
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Abstract
The utility model provides a circulation natural gas molecular sieve dewatering device, this circulation natural gas molecular sieve dewatering device includes: the device comprises a pipeline, a precooling device and a dewatering device body; the pipeline is obliquely arranged, and a concave pipe is fixedly connected to the side wall of the pipeline; the pre-cooling device comprises a condenser pipe wound on the pipeline, a circulating water pump fixedly connected with the condenser pipe and a plate cooler connected with the condenser pipe; wherein the condensation pipe is filled with condensed water; the dehydration device body comprises a first molecular sieve drying tower, a second molecular sieve drying tower and a heating device fixedly connected with the first molecular sieve drying tower and the second molecular sieve drying tower. The utility model has the advantages that: the pre-cooling device can pre-cool the high-temperature natural gas, so that the temperature of the natural gas and the water content in the natural gas are reduced; through the dewatering device body that sets up, can dewater the natural gas.
Description
Technical Field
The utility model relates to molecular sieve technical field especially involves a circulation natural gas molecular sieve dewatering device.
Background
The molecular sieve is a porous aluminum silicate crystal, and a large number of cavities are formed in the crystal structure. The cavities are interconnected by regular, uniform, number-scale molecule-sized channels. These cavities are usually occupied by adsorbed and crystallized water, while the macromolecules are excluded from the cavities, so called molecular sieves. The molecular sieve dehydration device utilizes the polarity and hydrophilicity of zeolite molecular sieves; the diameter of gas water molecules is smaller than that of the molecular sieve cavity, and the diameter of natural gas component molecules is larger than that of the molecular sieve cavity, so that gas is dried.
Molecular sieve dewatering device on market is when using, the saturated vapor calculation when the molecular sieve design is filled and needs to follow the natural gas highest temperature, drying tower equipment volume has been increased, increase the construction cost, and the molecular sieve can not adsorb liquid water and heavy hydrocarbon, it has fine economic value to need often blowdown and heavy hydrocarbon, cause the waste, simultaneously because liquid water and heavy hydrocarbon front end separation effect are not good, the natural gas is condensed out liquid by ambient temperature reduction, the molecular sieve load has been aggravated greatly, influence the problem of normal natural gas dehydration.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a circulating natural gas molecular sieve dehydration device.
The problems that the molecular sieve dehydration device in the prior art is large in equipment volume and large in molecular sieve load are solved.
The utility model discloses a realize through following technical scheme:
the utility model provides a circulation natural gas molecular sieve dewatering device, this circulation natural gas molecular sieve dewatering device includes: the device comprises a pipeline, a precooling device and a dewatering device body;
the pipeline is obliquely arranged, and a concave pipe is fixedly connected to the side wall of the pipeline;
the pre-cooling device comprises a condenser pipe wound on the pipeline, a circulating water pump fixedly connected with the condenser pipe and a plate cooler connected with the condenser pipe; wherein the condensation pipe is filled with condensed water;
the dehydration device body comprises a first molecular sieve drying tower, a second molecular sieve drying tower and a heating device fixedly connected with the first molecular sieve drying tower and the second molecular sieve drying tower.
Preferably, the side wall of the concave pipe is fixedly connected with a liquid discharge pipe, and the liquid discharge pipe is rotatably connected with a liquid discharge switch.
Preferably, the pipeline is connected with the bottoms of the first molecular sieve drying tower and the second molecular sieve drying tower through a first pipe body, and the first pipe body is rotatably connected with a first valve and a second valve.
Preferably, the first pipe body is fixedly connected with a second pipe body, and a third valve and a fourth valve are rotatably connected to the second pipe body; the second pipe body is communicated with the pipeline through an air return pipe.
Preferably, the first molecular sieve drying tower is communicated with the second molecular sieve drying tower through a third pipe body, and a fifth valve and a sixth valve are rotatably connected to the third pipe body.
Preferably, the third pipe body is fixedly connected with a fourth pipe body, and the fourth pipe body is rotatably connected with a seventh valve and an eighth valve.
Preferably, the third tube is connected with the heating device through a fifth tube, and the heating device is communicated with the fourth tube through a sixth tube; and the fifth pipe body is fixedly connected with a flowmeter and a supercharger.
Preferably, the top of the first molecular sieve drying tower is fixedly connected with a first exhaust pipe, and the top of the second molecular sieve drying tower is fixedly connected with a second exhaust pipe.
The utility model has the advantages that: the pre-cooling device can pre-cool the high-temperature natural gas, so that the temperature of the natural gas and the water content in the natural gas are reduced; through the dewatering device body that sets up, can dewater the natural gas.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a molecular sieve dehydration device for circulating natural gas according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a molecular sieve dehydration device for circulating natural gas according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
Firstly, in order to facilitate understanding of the molecular sieve dehydration device for the circulating natural gas provided by the embodiment of the application, an application scenario of the molecular sieve dehydration device for the circulating natural gas is explained, and the molecular sieve dehydration device for the circulating natural gas provided by the embodiment of the application is used for providing a device capable of removing moisture in natural gas; the molecular sieve dehydration device in the prior art has large volume and large molecular sieve load. The following describes a molecular sieve dehydration device for circulating natural gas provided by the embodiments of the present application with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic diagram of an overall structure of a molecular sieve dehydration device for cycle natural gas according to an embodiment of the present invention. According to fig. 1, the utility model provides a circulation natural gas molecular sieve dewatering device, this circulation natural gas molecular sieve dewatering device include pipeline 1, fixedly connected with precooling apparatus 3 and dewatering device body 7 on this pipeline 1. When the natural gas dehydration device is used, firstly, high-temperature natural gas is added into the pipeline 1, the high-temperature natural gas flows through the precooling device 3 in the pipeline 1, the precooling device 3 reduces the temperature of the corresponding pipeline 1, so that the high-temperature natural gas is cooled, partial moisture and heavy hydrocarbon in the natural gas are condensed into liquid, and the rest gas enters the dehydration device body 7 through the pipeline 1 for dehydration; the natural gas is condensed to form an oil-water mixture, so that the saturated water content and the hydrocarbon content of the natural gas are reduced, the filling amount of the molecular sieve is reduced, the load of the molecular sieve is reduced, and the equipment volume and the occupied area are reduced.
The utility model discloses can refer to fig. 2 when specifically setting up, fig. 2 is the embodiment of the utility model provides a specific structure schematic diagram of circulation natural gas molecular sieve dewatering device. According to fig. 2, the pipeline 1 is obliquely arranged with a lower left and a higher right, specifically, the pipeline 1 can be arranged at an inclination angle of 10-30 degrees, the pipeline 1 is also fixedly connected with a concave pipe 2, the bottom end of the side wall of the concave pipe 2 is fixedly connected with a liquid discharge pipe 11, and the liquid discharge pipe 11 is rotatably connected with a liquid discharge switch 12; with continued reference to fig. 2, the pre-cooling device 3 includes a condensation pipe 4 wound on the side wall of the pipeline 1, the condensation pipe 4 is filled with condensed water, the condensation pipe 4 is located behind the concave pipe 2 along the flowing direction of the natural gas, the two ends of the condensation pipe 4 are connected together by a circulating water pump 5 to form a loop, and the condensation pipe 4 further passes through a plate cooler 6. When the natural gas pipeline is used specifically, high-temperature natural gas can be added into the pipeline 1, and the natural gas flows along the direction of the pipeline 1; start plate cooler 6 and circulating water pump 5 simultaneously, circulating water pump 5 drives the comdenstion water and flows in condenser pipe 4, plate cooler 6 cools down the comdenstion water of process simultaneously, because the flow of comdenstion water, so the comdenstion water in the condenser pipe 4 all can be cooled down, the comdenstion water after the cooling can be cooled down to pipeline 1 that condenser pipe 4 corresponds, when the part of natural gas stream cooling of pipeline 1, the natural gas is cooled down, partial moisture in the natural gas and heavy hydrocarbon can condense to liquid this moment, liquid flows into to spill pipe 2 along pipeline 1 and stores in, open flowing back switch 12 after a certain time, the liquid discharge who collects in the spill pipe 2 is collected, then carry out the distillation separation to liquid, prevent extravagant. Because the natural gas is condensed to form an oil-water mixture, the saturated water content and the hydrocarbon content of the natural gas are reduced, the filling amount of the molecular sieve is reduced, and the load of the molecular sieve is reduced, so that the equipment volume and the occupied area are reduced.
With continued reference to fig. 2, the dehydration device body 7 includes a first molecular sieve drying tower 8 and a second molecular sieve drying tower 9, the first molecular sieve drying tower 8 and the second molecular sieve drying tower 9 are communicated with the pipeline 1 through a first pipe 13, a position where the first pipe 13 is connected with the pipeline 1 is located at the rear side of the condensation pipe 4, and the first pipe 13 is rotatably connected with a first valve 14 and a second valve 15; continuing to refer to fig. 2, the first tube 13 is fixedly connected with a second tube 16, the second tube 16 is rotatably connected with a third valve 17 and a fourth valve 18, the second tube 16 is also fixedly connected with an air return pipe 19, and one end of the air return pipe 19 far away from the second tube 16 is fixedly connected with the front end of the pipeline 1; with continued reference to fig. 2, the tops of the first molecular sieve drying tower 8 and the second molecular sieve drying tower 9 are fixedly connected with a third pipe 20, the third pipe 20 is rotatably connected with a fifth valve 21 and a sixth valve 22, the third pipe 20 is fixedly connected with a fourth pipe 23, and the fourth pipe 23 is rotatably connected with a seventh valve 24 and an eighth valve 25; with continued reference to fig. 2, the third tube 20 is fixedly connected with a fifth tube 26, one end of the fifth tube 26 away from the third tube 20 is fixedly connected with a supercharger 29, a side wall of the fifth tube 26 is fixedly connected with a flow meter 28, a liquid outlet of the supercharger 29 is fixedly connected with a sixth tube 27, one end of the sixth tube 27 away from the supercharger 29 is fixedly connected with the fourth tube 23, and the sixth tube 27 further passes through the heating device 10; with continued reference to fig. 2, the top of the first molecular sieve drying tower 8 is fixedly connected with a first exhaust pipe 30, and the first exhaust pipe 30 is rotatably connected with a first exhaust switch, the top of the second molecular sieve drying tower 9 is fixedly connected with a second exhaust pipe 31, and the second exhaust pipe 31 is rotatably connected with a second exhaust switch. The utility model discloses in, first molecular sieve drying tower 8 and second molecular sieve drying tower 9 are the molecular sieve drying tower that dewaters to the natural gas commonly used among the prior art, and one of them drying tower dewaters when using, and another drying tower sweeps the regeneration. When the utility model discloses specifically using the utility model discloses, at first can be with first valve 14, fourth valve 18, fifth valve 21, eighth valve 25 opens, close second valve 15, third valve 17, sixth valve 22, seventh valve 24, then the natural gas after the precooling enters into first molecular sieve drying tower 8 through first body 13 and dewaters, the natural gas part after the dehydration is discharged through first exhaust pipe 30 and is collected, the natural gas after the other part dehydration enters into fifth body 26 through third body 20, the natural gas that gets into in fifth body 26 measures through flowmeter 28, send to booster 29 and carry out the pressurization operation, the natural gas after the pressurization enters into sixth body 27, the natural gas after the pressurization heats through heating device 10 in sixth body 27, the natural gas after the heating once passes through sixth body 27, fourth body 23, And the third pipe 20 enters the second molecular sieve drying tower 9, so that the pressurized and heated natural gas is used for purging and regenerating the second molecular sieve drying tower 9, the natural gas entering the second molecular sieve drying tower 9 is used for purging and regenerating the second molecular sieve drying tower 9, the natural gas drives the moisture in the second molecular sieve drying tower 9 to enter the air return pipe 19, the natural gas enters the front end of the pipeline 1 through the air return pipe 19 and is mixed with the raw gas entering the pipeline 1, the natural gas entering the second molecular sieve drying tower 9 is heated, so that the natural gas discharged from the second molecular sieve drying tower 9 is also high in temperature, is cooled when passing through the condensation pipe 4 in the pipeline 1, the moisture in the natural gas is condensed into liquid and then enters the first molecular sieve drying tower 8 together with the raw gas to be sequentially circulated, thereby completing the dehydration work of the natural gas. When the second molecular sieve drying tower 9 is used for dehydration and the first molecular sieve drying tower 8 is purged and regenerated, the first valve 14, the fourth valve 18, the fifth valve 21, and the eighth valve 25 are closed, and the second valve 15, the third valve 17, the sixth valve 22, and the seventh valve 24 are opened.
When the heating device 10 is specifically arranged, it may include a housing, and an electric heating plate or an electric heating wire is fixedly connected to an inner wall of the housing, and then the sixth pipe 27 is passed through the housing; in order to achieve a better heating effect, the part of the sixth tube 27 in the housing can be made into a snake shape, so that the heating area is increased, and a better heating effect is achieved; the heat-insulating layer can be fixedly connected to the outer wall of the shell, so that the shell is insulated, heat in the shell is prevented from being dissipated into the air as much as possible, and energy is saved.
The utility model provides an all parts are the parts commonly used among the prior art, and just for right the application the utility model provides an all power consumption parts power supply, the utility model provides an every power consumption part all should be connected with the external power source electricity, and every power consumption part still should electrically be connected with the control switch who is used for controlling self.
In the above embodiments, the molecular sieve dehydration device for the circulating natural gas provided by the embodiments of the present application can dehydrate natural gas, and can reduce the floor area and the molecular sieve load.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (8)
1. A circulating natural gas molecular sieve dehydration device is characterized by comprising: the device comprises a pipeline, a precooling device and a dewatering device body;
the pipeline is obliquely arranged, and a concave pipe is fixedly connected to the side wall of the pipeline;
the pre-cooling device comprises a condenser pipe wound on the pipeline, a circulating water pump fixedly connected with the condenser pipe and a plate cooler connected with the condenser pipe; wherein the condensation pipe is filled with condensed water;
the dehydration device body comprises a first molecular sieve drying tower, a second molecular sieve drying tower and a heating device fixedly connected with the first molecular sieve drying tower and the second molecular sieve drying tower.
2. The molecular sieve dehydration device for cycle natural gas according to claim 1, characterized in that a drain pipe is fixedly connected to the side wall of said concave pipe, and said drain pipe is rotatably connected with a drain switch.
3. The molecular sieve dehydration device for cycle natural gas according to claim 1, characterized in that the pipeline is connected to the bottoms of the first molecular sieve drying tower and the second molecular sieve drying tower through a first pipe, and a first valve and a second valve are rotatably connected to the first pipe.
4. The molecular sieve dehydration device for cycle natural gas according to claim 3, characterized in that the first pipe body is fixedly connected with a second pipe body, and the second pipe body is rotatably connected with a third valve and a fourth valve; the second pipe body is communicated with the pipeline through an air return pipe.
5. The molecular sieve dehydration device of claim 1 characterized in that said first molecular sieve drying tower is connected to said second molecular sieve drying tower through a third pipe, and said third pipe is rotatably connected to a fifth valve and a sixth valve.
6. The molecular sieve dehydration device of cycle natural gas according to claim 5, characterized in that a fourth pipe is fixedly connected to the third pipe, and a seventh valve and an eighth valve are rotatably connected to the fourth pipe.
7. The molecular sieve dehydration device for cycle natural gas according to claim 6, characterized in that said third pipe is connected to said heating device through a fifth pipe, and said heating device is connected to said fourth pipe through a sixth pipe; and the fifth pipe body is fixedly connected with a flowmeter and a supercharger.
8. The molecular sieve dehydration device of claim 1, characterized in that the top of said first molecular sieve drying tower is fixedly connected with a first exhaust pipe, and the top of said second molecular sieve drying tower is fixedly connected with a second exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020764263.0U CN212425975U (en) | 2020-05-11 | 2020-05-11 | Circulating natural gas molecular sieve dehydration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020764263.0U CN212425975U (en) | 2020-05-11 | 2020-05-11 | Circulating natural gas molecular sieve dehydration device |
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| Publication Number | Publication Date |
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| CN212425975U true CN212425975U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020764263.0U Active CN212425975U (en) | 2020-05-11 | 2020-05-11 | Circulating natural gas molecular sieve dehydration device |
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| CN (1) | CN212425975U (en) |
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