CN209741083U - Skid-mounted precooling dewatering natural gas molecular sieve dewatering device - Google Patents
Skid-mounted precooling dewatering natural gas molecular sieve dewatering device Download PDFInfo
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- CN209741083U CN209741083U CN201822170107.7U CN201822170107U CN209741083U CN 209741083 U CN209741083 U CN 209741083U CN 201822170107 U CN201822170107 U CN 201822170107U CN 209741083 U CN209741083 U CN 209741083U
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Abstract
The utility model discloses a skid-mounted precooling dewatering natural gas molecular sieve dewatering device, which comprises a dewatering device bracket, the dehydration device bracket is fixed with a regeneration air cooler from the upper part of the front end, the left side of the regeneration air cooler is connected with a regeneration water-gas heat exchanger, the upper part of the regeneration water-gas heat exchanger is connected with a regeneration filter, the lower part of the regeneration water-gas heat exchanger is provided with a pre-cooling water-gas heat exchanger, the right end of the pre-cooling water-gas heat exchanger is provided with a natural gas inlet, the left side of the pre-cooling water-gas heat exchanger is connected with a pre-cooling filter, the left side of the pre-cooling filter is connected with a pre-filter, the bottom of the pre-cooling filter is connected with a sewage pipeline, the right side of the pre-filter is connected with an adsorption tower, the adsorption tower is positioned at the rear side of the pre-cooling filter, a pipeline at the right side of the adsorption tower is connected with a post-filter, and a natural gas outlet is formed in the bottom of the post-filter. The device has the advantages of high adsorption efficiency, smaller occupied area, smaller power, reduced equipment investment cost and reduced operation and maintenance cost of the equipment.
Description
Technical Field
The utility model relates to a dewatering device field, concretely relates to sled dress formula precooling dewatering natural gas molecular sieve dewatering device.
Background
The molecular sieve dehydration device removes water in the natural gas to meet the dew point requirement of outlet product gas (the back-end compressor is protected to work normally, equipment such as a back-end 250BAR gas-filling column, a pressure regulating pry and the like can not be blocked by ice, and 250BAR transported by a tank car can not be blocked by ice). However, if the inlet temperature exceeds 40 ℃ (the same standard dehydration pry cannot work normally when the inlet temperature exceeds 40 ℃), the adsorption effect of the molecular sieve is poor, the service life of the adsorbent is reduced, and the dew point of the outlet finished product gas is affected. If the water content of the inlet is too large (the saturated water content of natural gas is high due to high temperature), the design of the dewatering pry cannot be carried out, or the model selection is huge, so that the method is uneconomical for investors and difficult for later-stage maintenance.
Disclosure of Invention
An object of the utility model is to provide a skid-mounted precooling dewatering natural gas molecular sieve dewatering device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a skid-mounted precooling dewatering natural gas molecular sieve dewatering device comprises a dewatering device support, wherein a regeneration air cooler is fixed on the upper portion of the front end of the dewatering device support, the left side of the regeneration air cooler is connected with a regeneration water-gas heat exchanger through a pipeline, the upper portion of the regeneration water-gas heat exchanger is connected with a regeneration filter through a pipeline, the lower portion of the regeneration water-gas heat exchanger is provided with a precooling water-gas heat exchanger, the right end of the precooling water-gas heat exchanger is provided with a natural gas inlet, the left end of the precooling water-gas heat exchanger is connected with a precooling filter positioned on the left side through a pipeline, the left side of the precooling filter is provided with a front filter, the bottom of the precooling filter is connected with a sewage pipeline, the front filter is connected with the precooling filter through a pipeline, the right side of the front filter is connected with an adsorption, and a natural gas outlet is formed in the bottom of the post filter.
Furthermore, the upper part of the left end of the precooling water-gas heat exchanger is connected with a cooling water outlet I, and the lower part of the precooling water-gas heat exchanger is connected with a cooling water outlet II.
Furthermore, the left end of the regenerated water-gas heat exchanger is connected with a cooling water inlet, and the right end of the regenerated water-gas heat exchanger is connected with a cooling water outlet III.
Furthermore, the number of the pre-filter, the number of the adsorption tower and the number of the post-filter are 2.
Furthermore, the water outlet of the sewage pipeline is fixed at the left end of the dehydration device bracket.
The utility model discloses a technological effect and advantage: the adsorption efficiency of the molecular sieve can be greatly improved by reducing the temperature of the inlet natural gas to be 5-15 ℃. Meanwhile, the saturated water content of the inlet natural gas can be greatly reduced by reducing the temperature of the inlet natural gas, so that the model selection configuration of the dewatering pry is greatly reduced, the dewatering pry occupies smaller area than the original design, the power is smaller, the equipment investment cost is reduced, and the operation and maintenance cost of the equipment is reduced; the high-efficiency gas-liquid separator of our company is added at the rear end of the water chilling unit, liquid water is efficiently separated out through the filter element precision of 0.01 mu m, and water is discharged through the automatic sewage discharge system.
Drawings
FIG. 1 is a block diagram of the present invention;
Fig. 2 is a front view of the present invention.
In the figure: 1-a dehydration device bracket, 2-a regenerative air cooler, 3-a regenerative water-gas heat exchanger, 301-a cooling water inlet, 302-a cooling water outlet III, 4-a regenerative filter, 5-a pre-cooling water-gas heat exchanger, 501-a cooling water outlet I, 502-a cooling water outlet II, 6-a natural gas inlet, 7-a pre-cooling filter, 8-a pre-filter, 9-a sewage pipeline, 901-a water outlet, 10-an adsorption tower, 11-a post-filter and 12-a natural gas outlet.
Detailed Description
In order to make the technical means, the characteristics of creation, the objects achieved and the functions of the present invention easy to understand, the present invention will be further explained with reference to the detailed drawings, and in the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "mounted", "connected" and "connected" should be interpreted broadly, for example, they may be fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, and connected inside two elements.
Example 1
As shown in fig. 1 and fig. 2, the skid-mounted precooling dewatering natural gas molecular sieve dewatering device comprises a dewatering device support 1, wherein a regeneration air cooler 2 is fixed on the upper part of the front end of the dewatering device support 1, the left side of the regeneration air cooler 2 is connected with a regeneration water-gas heat exchanger 3 through a pipeline, the upper part of the regeneration water-gas heat exchanger 3 is connected with a regeneration filter 4 through a pipeline, a precooling water-gas heat exchanger 5 is arranged on the lower part of the regeneration water-gas heat exchanger 3, a natural gas inlet 6 is arranged at the right end of the precooling water-gas heat exchanger 5, the left end of the precooling water-gas heat exchanger 5 is connected with a precooling filter 7 positioned on the left side through a pipeline, a prefilter 8 is arranged on the left side of the precooling filter 7, a sewage pipeline 9 is connected at the bottom of the precooling filter 8, the right, the adsorption tower 10 is positioned at the rear side of the pre-cooling filter 7, a pipeline at the right side of the adsorption tower 10 is connected with a post-filter 11, and a natural gas outlet 12 is arranged at the bottom of the post-filter 11.
Example 2
As shown in fig. 1 and fig. 2, the skid-mounted precooling dewatering natural gas molecular sieve dewatering device comprises a dewatering device support 1, wherein a regeneration air cooler 2 is fixed on the upper part of the front end of the dewatering device support 1, the left side of the regeneration air cooler 2 is connected with a regeneration water-gas heat exchanger 3 through a pipeline, the upper part of the regeneration water-gas heat exchanger 3 is connected with a regeneration filter 4 through a pipeline, a precooling water-gas heat exchanger 5 is arranged on the lower part of the regeneration water-gas heat exchanger 3, a natural gas inlet 6 is arranged at the right end of the precooling water-gas heat exchanger 5, the left end of the precooling water-gas heat exchanger 5 is connected with a precooling filter 7 positioned on the left side through a pipeline, a prefilter 8 is arranged on the left side of the precooling filter 7, a sewage pipeline 9 is connected at the bottom of the precooling filter 8, the right, the adsorption tower 10 is positioned at the rear side of the pre-cooling filter 7, a pipeline at the right side of the adsorption tower 10 is connected with a post-filter 11, and a natural gas outlet 12 is arranged at the bottom of the post-filter 11.
Furthermore, the upper part of the left end of the pre-cooling water-gas heat exchanger 5 is connected with a cooling water outlet I501, and the lower part is connected with a cooling water outlet II 502.
Furthermore, the left end of the regeneration water-gas heat exchanger 3 is connected with a cooling water inlet 301, and the right end is connected with a cooling water outlet III 302.
Furthermore, the number of the pre-filter 8, the number of the adsorption tower 10 and the number of the post-filter 11 are 2.
Further, the drainage port 901 of the sewer pipe 9 is fixed to the left end of the dewatering device bracket 1.
The utility model discloses the theory of operation does: carry out the precooling dewatering to the entry natural gas before traditional natural gas dewatering device to it is integrative with precooling system integration and dehydration sled. No matter how high the temperature of inlet natural gas is, a water chilling unit with proper refrigerating capacity can be selected through calculation and model selection, cooling water and high-temperature natural gas are provided for heat exchange in a plate heat exchanger or a shell-and-tube heat exchanger, the effect of reducing the gas temperature is achieved, and the temperature of the inlet natural gas is reduced to 5-15 ℃ (specifically, the inlet temperature is reduced to several degrees according to the fact that the pressure and the flow are not different); can improve molecular sieve's adsorption efficiency greatly between 5~15 ℃ through reducing entry natural gas temperature, the saturated water content of reduction entry natural gas that simultaneously can be great through the temperature that reduces entry natural gas can get rid of hydrocarbon and heavy hydrocarbon component in the partial natural gas simultaneously through the cooling, improves the purity of methane in the natural gas. The model selection of the dewatering pry is greatly reduced, the equipment investment cost is reduced, and the operation and maintenance cost of the equipment is reduced. And a company high-efficiency gas-liquid separator is added at the rear end of the water chilling unit, and water is discharged through an automatic sewage discharge system.
finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. The utility model provides a skid-mounted precooling dewatering natural gas molecular sieve dewatering device, includes dewatering device support (1), its characterized in that: the dehydration device support (1) is characterized in that a regeneration air cooler (2) is fixed at the upper part of the front end, the left side of the regeneration air cooler (2) is connected with a regeneration water-gas heat exchanger (3) through a pipeline, the upper part of the regeneration water-gas heat exchanger (3) is connected with a regeneration filter (4) through a pipeline, a pre-cooling water-gas heat exchanger (5) is arranged at the lower part of the regeneration water-gas heat exchanger (3), a natural gas inlet (6) is arranged at the right end of the pre-cooling water-gas heat exchanger (5), the left end of the pre-cooling water-gas heat exchanger (5) is connected with a pre-cooling filter (7) positioned at the left side through a pipeline, a pre-filter (8) is arranged at the left side of the pre-cooling filter (7), a sewage pipeline (9) is connected at the bottom, the pre-filter (8) is connected with, the adsorption tower (10) is positioned at the rear side of the pre-cooling filter (7), the right pipeline of the adsorption tower (10) is connected with a post-filter (11), and a natural gas outlet (12) is formed in the bottom of the post-filter (11).
2. The skid-mounted precooling dewatering natural gas molecular sieve dewatering device according to claim 1, characterized in that: the upper part of the left end of the pre-cooling water-gas heat exchanger (5) is connected with a cooling water outlet I (501), and the lower part of the pre-cooling water-gas heat exchanger is connected with a cooling water outlet II (502).
3. The skid-mounted precooling dewatering natural gas molecular sieve dewatering device according to claim 1, characterized in that: the left end of the regeneration water-gas heat exchanger (3) is connected with a cooling water inlet (301), and the right end of the regeneration water-gas heat exchanger is connected with a cooling water outlet III (302).
4. The skid-mounted precooling dewatering natural gas molecular sieve dewatering device according to claim 1, characterized in that: the number of the front filter (8), the number of the adsorption tower (10) and the number of the rear filter (11) are 2.
5. The skid-mounted precooling dewatering natural gas molecular sieve dewatering device according to claim 1, characterized in that: the water outlet (901) of the sewage pipeline (9) is fixed at the left end of the dehydration device bracket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170107.7U CN209741083U (en) | 2018-12-24 | 2018-12-24 | Skid-mounted precooling dewatering natural gas molecular sieve dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170107.7U CN209741083U (en) | 2018-12-24 | 2018-12-24 | Skid-mounted precooling dewatering natural gas molecular sieve dewatering device |
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| Publication Number | Publication Date |
|---|---|
| CN209741083U true CN209741083U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822170107.7U Active CN209741083U (en) | 2018-12-24 | 2018-12-24 | Skid-mounted precooling dewatering natural gas molecular sieve dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209741083U (en) |
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2018
- 2018-12-24 CN CN201822170107.7U patent/CN209741083U/en active Active
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