CN217459350U - A rich liquid filter of solvent and natural gas clean system for natural gas purifies - Google Patents
A rich liquid filter of solvent and natural gas clean system for natural gas purifies Download PDFInfo
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- CN217459350U CN217459350U CN202221033437.1U CN202221033437U CN217459350U CN 217459350 U CN217459350 U CN 217459350U CN 202221033437 U CN202221033437 U CN 202221033437U CN 217459350 U CN217459350 U CN 217459350U
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Abstract
The utility model relates to a natural gas purifies technical field, particularly, relates to a rich liquid filter of solvent and natural gas clean system for natural gas purifies. The filter comprises a shell and at least one filter element, wherein a filter liquid inlet pipe and a filter liquid outlet pipe are both arranged at the bottom of a filter cylinder body. The filtering filter element is a folding filter element, the filtering precision is 1-5 mu m, the capacity of accommodating pollutants is more than or equal to 650g/(L/min n), and the outer diameter is more than or equal to 150 mm. The filter adopts the filter element, can improve the filtering precision to 1 mu m, greatly improves the filtering precision and the filtering efficiency of solid particles, effectively reduces the accumulation of small-particle-size particles in a natural gas dehydration and desulfurization process system and a solvent regeneration system, and avoids the problems of blockage, foaming and scaling of the system. Meanwhile, the replacement period of the filter element can be greatly prolonged, and the workload of replacing the filter element is reduced.
Description
Technical Field
The utility model relates to a natural gas purifies technical field, particularly, relates to a rich liquid filter of solvent and natural gas clean system for natural gas purifies.
Background
In the process of natural gas exploitation, a solvent is required to be adopted to carry out process treatments such as dehydration, desulfurization and the like on natural gas. The solvent comprises ethylene glycol, triethylene glycol and amine liquid.
In the purification process of natural gas dehydration, desulfurization and the like, the solvent barren solution enters the contact tower from the upper part, and becomes a solvent rich solution containing a plurality of pollutants after the solvent barren solution and the natural gas are in reverse contact reaction in the contact tower, and the solvent rich solution flows out from the lower part of the contact tower. And (3) conveying the solvent rich solution flowing out of the contact tower to a solvent regeneration treatment device for regeneration treatment, regenerating the solvent rich solution into qualified solvent poor solution, and conveying the solvent poor solution to the contact tower again for recycling, thereby realizing the recycling of the solvent.
The solvent rich solution generated by the natural gas purification treatment process contains a large amount of soluble pollutants and a large amount of insoluble pollutants (particle pollutants and hydrocarbon pollutants). The particulate contaminants therein can cause problems such as scaling, bubbling, corrosion, plugging, and the like, and adversely affect the purification process of natural gas and the solvent regeneration process. Because these solvents are recycled, after the system runs for a long time, the particle pollutants with small particle sizes can generate an accumulation effect, the pollution degree of the system is continuously increased, and finally the problems of performance reduction of a purification system and a regeneration system, system failure and shutdown, running cost increase and the like are caused. Therefore, in the solvent regeneration treatment system, a filtration and purification device is required to be arranged to timely and effectively remove the particulate pollutants.
The existing filter mainly has the following defects: first, the filtration accuracy is insufficient, the filtration efficiency is low, only particulate contaminants of 10 μm or more can be removed, and the removal efficiency for solid particles of 5 μm or less is extremely low. Secondly, the filter and the filter element have small dirt holding capacity, and the filter element has short service life and short replacement period. Finally, the size of a single filter element is small, the flow rate is small, the number of the filter elements required to be installed in each filter is large, the workload of replacing the filter elements is large, filter element sealing points are more, and leakage is easily caused due to the fact that the filter element sealing points are more.
In addition, the physical and chemical properties, the pollutant conditions and the working conditions of the solvent for purifying the natural gas are greatly different from those of liquids such as water, and the solvent cannot be replaced by the same filter.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the filter fineness of the solvent rich liquid filter is not enough, the pollutant carrying capacity is small (the filter core life is short), the filter core size is small, and the quantity is many.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
the utility model provides a solvent rich liquid filter for purifying natural gas, which comprises a shell and at least one filter element; the shell comprises a filtering cylinder body, a filtering liquid inlet pipe, a filtering liquid inlet cavity, a partition plate, a filtering liquid outlet cavity and a filtering liquid outlet pipe; the partition plate is fixedly arranged in the filter cylinder body and divides the inner cavity of the filter cylinder body into the filtering liquid inlet cavity and the filtering liquid outlet cavity which are arranged up and down; the filtering filter element is detachably arranged on the partition plate and is positioned in the filtering liquid inlet cavity; the filtering liquid cavity is communicated with the inner cavity of the filtering filter element; the filtering liquid inlet pipe and the filtering liquid outlet pipe are positioned at the bottom of the filtering cylinder body; the filtering liquid inlet pipe is communicated with the filtering liquid inlet cavity, and the filtering liquid outlet pipe is communicated with the filtering liquid outlet cavity; the filter element is a folding filter element, the filtering precision is 1-5 mu m, and the capacity of accommodating pollutants is more than or equal to 650 g/(L/min).
The beneficial effects of the utility model reside in that: in the structure, the solvent rich liquid to be treated flows upwards into the filtering liquid inlet cavity from the bottom of the filtering cylinder body, and then flows downwards into the filtering liquid outlet cavity after being treated by the filtering filter element, so that the distribution of flow velocity is improved, and the filtering effect is improved; this filter core has improved solid particulate's filter fineness and filtration efficiency by a wide margin.
The utility model discloses can also realize through following further technical scheme:
further, the outer diameter of the filter element is larger than or equal to 150 mm.
The beneficial effect who adopts above-mentioned further scheme is that, adopts the foldable filter core of major diameter, can improve filter area by a wide margin, and then is showing and has increaseed the pollutant carrying capacity to can prolong 5 to 6 times the replacement cycle of filtering the filter core, also reduce the work load that the filter core was changed simultaneously.
Furthermore, the liquid inlet of the filtering liquid inlet pipe and the liquid outlet of the filtering liquid outlet pipe are positioned on the same horizontal plane.
The adoption of the further scheme has the beneficial effects that the filtering liquid inlet pipe and the filtering liquid outlet pipe are both arranged at the bottom of the filtering cylinder body, so that the installation is convenient; meanwhile, the contact time of the solvent rich solution and the filtering filter element is increased, and the filtering effect is effectively improved.
Further, the filtering cylinder body is a vertically arranged cylinder structure, and the filtering filter element is vertically arranged in the filtering cylinder body; the top of the filtering cylinder body is provided with a filtering cylinder body end cover which can be opened and closed.
The beneficial effect who adopts above-mentioned further scheme is, makes the change process of filtering the filter core simple and efficient, easily installation and dismantlement.
Furthermore, it is a plurality of to filter the filter core, and is a plurality of filter the filter core is in surround on the baffle filter the liquid outlet of feed liquor pipe arranges.
The beneficial effect of adopting above-mentioned further scheme is, further improve filtration efficiency.
The filter element mounting seat is provided with a liquid channel along the axial direction; the filter element mounting seat is installed on the partition plate, the upper portion of the filter element mounting seat is detachably and hermetically connected with the filter element, and the liquid channel is communicated with the filter liquid cavity.
Adopt the beneficial effect of above-mentioned further scheme to be, can realize filtering the sealing connection of filter core and baffle.
Further, the solvent is one of ethylene glycol, triethylene glycol or amine solution.
The utility model provides a natural gas purification system, including foretell a rich liquid filter of solvent for natural gas purification.
Drawings
Fig. 1 is a cross-sectional view of a longitudinal section of a filter cylinder end cover in an open state in a solvent rich liquid filter for natural gas purification according to the present invention;
fig. 2 is a front view of the filter element mounting seat mounted on the partition plate in the solvent rich liquid filter for natural gas purification according to the present invention;
fig. 3 is a schematic structural diagram of the filter element mounting seat of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. filtering the liquid inlet pipe;
2. a partition plate; 21. filtering the liquid outlet hole; 22. filtering the liquid inlet hole;
3. a filter cylinder; 31. a liquid inlet cavity is filtered; 32. filtering out the liquid cavity;
4. a filter element;
5. an end cover of the filtering cylinder body;
6. filtering the liquid outlet pipe;
7. a filter element mounting seat.
Detailed Description
The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the solvent rich liquid filter for natural gas purification of the present invention comprises a housing and at least one filter element 4; the shell comprises a filtering cylinder body 3, a filtering liquid inlet pipe 1, a filtering liquid inlet cavity 31, a partition plate 2, a filtering liquid outlet cavity 32 and a filtering liquid outlet pipe 6; the partition plate 2 is fixedly arranged in the filtering cylinder 3 and divides the inner cavity of the filtering cylinder 3 into a filtering liquid inlet cavity 31 and a filtering liquid outlet cavity 32 which are arranged up and down; the filtering filter element 4 is detachably arranged on the clapboard 2 and is positioned in the filtering liquid inlet cavity 31; the filtered liquid cavity 32 is communicated with the inner cavity of the filter element 4; the filtering liquid inlet pipe 1 and the filtering liquid outlet pipe 6 are positioned at the bottom of the filtering cylinder 3; the filtering liquid inlet pipe 1 is communicated with the filtering liquid inlet cavity 31, and the filtering liquid outlet pipe 6 is communicated with the filtering liquid outlet cavity 32.
When the filter of the utility model filters the solvent rich liquid, the solvent rich liquid containing the pollutant flows into the filtering liquid inlet cavity 31 through the filtering liquid inlet pipe 1, after being filtered and purified by the filtering filter element 4, the insoluble pollutant is remained in the filtering liquid inlet cavity 31, the purified solvent rich liquid flows into the filtering liquid outlet cavity 32, and flows out of the filter through the filtering liquid outlet pipe 6, and then enters a downstream system for recycling or recycling; in the structure, the solvent rich liquid to be processed flows upwards into the filtering liquid inlet cavity 31 from the bottom of the filtering cylinder 3, and then flows downwards into the filtering liquid outlet cavity 32 after being processed by the filtering filter element 4, so that the distribution of flow velocity is improved, and the filtering effect is improved.
Preferably, the filtering precision of the filtering filter element 4 is 1-5 μm, and the pollutant carrying capacity is more than or equal to 650 g/(L/min); this filter element 4 has improved solid particulate matter's filter fineness and filtration efficiency by a wide margin, and the effectual accumulation that has reduced small-particle size particulate matter in natural gas clean system and regeneration system has avoided the jam of system, the foaming, the scale deposit problem.
Preferably, the filtering core 4 is a folding type filtering core, and a central tube is arranged in the folding type filtering core; the outer diameter of the filter element 4 is larger than or equal to 150 mm; adopt the foldable filter core of major diameter, can improve filter area by a wide margin, and then show and increaseed the pollutant carrying capacity to can prolong 5 to 6 times the replacement cycle of filtering filter core 4, also reduce the work load that the filter core was changed simultaneously.
Further preferably, the outer diameter of the filter element 4 is 160 mm; adopt the foldable filter core that the external diameter is 160mm, its filter area is 20 ~ 30 times of traditional external diameter is the deep-layer filter core of 63mm, makes the quantity of filtering filter core 4 reduce to original one tenth, has further reduced the replacement cost and the change work load of filter core.
The utility model discloses a length of filtering core 4 can be selected according to actual need, and generally speaking, filtering core 4 length is 400 ~ 1200mm the utility model discloses an in the embodiment, the length of filtering core 4 is 1016 mm.
Preferably, the liquid inlet of the filtering liquid inlet pipe 1 and the liquid outlet of the filtering liquid outlet pipe 6 are positioned on the same horizontal plane.
In practical use, the solvent rich liquid filter needs to be connected with relevant devices at the upstream and the downstream simultaneously. The solvent rich liquor filter of the utility model arranges the filtering liquid inlet pipe 1 and the filtering liquid outlet pipe 6 at the bottom of the filtering cylinder 3, which is convenient for installation; meanwhile, in the structure, the solvent rich liquid to be filtered flows upwards into the filtering liquid inlet cavity 31 from the bottom of the filtering cylinder 3, and then flows downwards into the filtering liquid outlet cavity 32 after being filtered by the filtering filter element 4, so that the contact time of the solvent rich liquid and the filtering filter element 4 is prolonged, and the filtering effect is effectively improved.
It should be noted that the solvent rich liquid has a sufficient flow rate when flowing into the filtrate inlet chamber 31 through the filtrate inlet pipe 1, and the flow rate can be provided by the pump body or other upstream devices.
As shown in fig. 2 and 3, preferably, the filter of the present invention further includes a filter cartridge mounting seat 7, and the filter cartridge mounting seat 7 is provided with a liquid passage along an axial direction thereof; the filter element mounting seat 7 is arranged on the clapboard 2, the upper part of the filter element mounting seat is detachably connected with the filter element 4 in a sealing way, and the liquid channel is communicated with the filtered liquid cavity 32.
Preferably, the partition plate 2 is provided with at least one filter liquid outlet hole 21, and the filter element mounting seat 7 is fixed on the filter liquid outlet hole 21, so that the filter element 4 is detachably and hermetically mounted on the partition plate 2; the partition board 2 is also provided with a filtering liquid inlet hole 22, the filtering liquid inlet pipe 1 penetrates through the filtering liquid outlet cavity 32, and the liquid outlet of the filtering liquid inlet pipe is fixed on the filtering liquid inlet hole 22 and is communicated with the filtering liquid inlet cavity 31.
It should be noted that fig. 2 is a schematic structural diagram, and the specific number of the cartridge installation seats 7 is not limited to the specific number in the drawing.
Preferably, the filtering cylinder 3 is a vertically arranged cylinder structure, and the filtering core 4 is vertically arranged in the filtering cylinder 3; the top of the filtering cylinder 3 is provided with a filtering cylinder end cover 5 which can be opened and closed; when the filter is used, the end cover 5 of the filtering cylinder body is closed; when the filter element 4 needs to be replaced, the end cover 5 of the filter cylinder body positioned at the top can be opened, and the filter element 4 is taken out and inserted into the filter cylinder body 3, so that the replacement process of the filter element 4 is simple, convenient and quick, and easy to install and disassemble.
Preferably, a plurality of filtering filter elements 4 are arranged on the partition plate 2 around the liquid outlet of the filtering liquid inlet pipe 1; by adopting the arrangement mode, the filtering efficiency can be effectively increased.
Further preferably, the plurality of filter elements 4 are arranged in a centrosymmetric manner on a horizontal plane with respect to the center of the liquid outlet of the filter liquid inlet pipe 1.
Preferably, the filterable solvent of the filter of the present invention is ethylene glycol, triethylene glycol or amine solution. Ethylene glycol and triethylene glycol are solvents for dehydrating natural gas, and amine liquid is a solvent for desulfurizing natural gas.
The utility model discloses a working process of filter does:
the ethylene glycol, triethylene glycol or amine liquid containing the particle pollutants firstly enters the filtering liquid inlet cavity 31 from the filtering liquid inlet pipe 1 of the filter, the dirty liquid flows through the filtering filter element 4 from outside to inside, the particle pollutants are intercepted by the filtering material of the filtering filter element 4, the filtered clean liquid flows into the central pipe of the filtering filter element 4, flows downwards in the central pipe and is converged into the filtering liquid outlet cavity 32, and the clean liquid after the particle pollutants are removed flows out from the filtering liquid outlet pipe 6 to obtain the filtrate.
The particle pollutants in the filtrate are effectively removed, and the recycling requirement can be met.
The utility model discloses a natural gas purification system, including foretell solvent rich liquid filter that is used for natural gas to purify.
The invention is illustrated below by means of specific examples:
example 1
The filter insert 4 of this example has an outer diameter of 160mm, a length of 1016mm, a number of 6, and a filtration accuracy of 1 micron.
The filter of the embodiment is used for filtering the glycol rich solution, the flow rate is 30 square/hour, and the content of particulate matters is 10 mg/L.
Through detection, in the ethylene glycol rich solution of the embodiment, the filtering efficiency of the particulate matters with the particle size larger than 1 micron is 99%. The replacement cycle (service life) of the filter cartridge 4 was 45 days.
When the filter is replaced, the complete set of the filter element 4 in one filter is replaced for 12 minutes.
Example 2
The filter insert 4 of this example has an outer diameter of 160mm, a length of 1016mm, a number of 3, and a filter fineness of 3 μm.
The filtering and purifying device of the embodiment is adopted to filter and purify the glycol rich solution, the flow rate is 15 square/hour, and the content of particulate matters is 6 mg/L.
Through detection, in the ethylene glycol rich solution of the embodiment, the filtering efficiency of the particulate matters with the particle size larger than 3 microns is 99%. The replacement cycle (service life) of the filter cartridge 4 was 75 days. When the filter is replaced, the complete set of the filter element 4 in one filter is replaced for 6 minutes.
Example 3
The filter insert 4 of this example has an outer diameter of 160mm, a length of 1016mm, a number of 6, and a filtration accuracy of 1 micron.
The amine liquid is filtered and purified by adopting the filtering and purifying device of the embodiment, the flow rate is 15 square/hour, and the content of particulate matters is 5 mg/L.
According to detection, in the amine liquid of the embodiment, the filtration efficiency of the particulate matters with the particle size larger than 1 micron is 99%. The replacement cycle (service life) of the filter cartridge 4 was 55 days. When the filter is replaced, the complete set of the filter element 4 in one filter is replaced for 6 minutes.
Comparative example 1
The filter element of the comparative example is a wire-wound deep layer filter element, the outer diameter is 63mm, the length is 1016mm, the filtering precision is 10 microns, and the number is 31.
The filter of the comparative example is adopted to filter the glycol rich solution, the flow rate is 30 square/hour, and the content of particulate matters is 10 mg/L.
The detection shows that the filtering efficiency of the particulate matters with the particle size of more than 10 microns is 99 percent, and the filtering efficiency of the particulate matters with the particle size of 1 micron is only about 10 percent. When the content of the particles is 10mg/L, the filter element replacement period is 7 days. The time for replacing all the filter elements is 46 minutes respectively.
Can see through above-mentioned embodiment and comparative example, adopt the utility model discloses a solvent rich liquor filter handles ethylene glycol rich liquor or amine liquid, and the device that is higher than comparative example 1 that filtration efficiency is showing, and especially the purification efficiency of small-particle size particle pollutant is higher. And simultaneously, the utility model discloses an among the filter, the change cycle of filtering core 4 is longer, and it is little to change the work load, makes the running cost of filter reduce by a wide margin.
In the description of the present invention, it should be noted that the terms "center", "length", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 invention can be understood in specific cases to those skilled in the art.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. A solvent rich liquid filter for purification of natural gas, comprising a housing and at least one filter cartridge (4);
the shell comprises a filtering cylinder body (3), a filtering liquid inlet pipe (1), a filtering liquid inlet cavity (31), a partition plate (2), a filtering liquid outlet cavity (32) and a filtering liquid outlet pipe (6);
the partition plate (2) is fixedly arranged in the filtering cylinder body (3) and divides the inner cavity of the filtering cylinder body (3) into the filtering liquid inlet cavity (31) and the filtering liquid outlet cavity (32) which are arranged up and down; the filtering filter element (4) is detachably arranged on the partition plate (2) and is positioned in the filtering liquid inlet cavity (31);
the filtered liquid cavity (32) is communicated with the inner cavity of the filtering filter element (4);
the filtering liquid inlet pipe (1) and the filtering liquid outlet pipe (6) are positioned at the bottom of the filtering cylinder body (3); the filtering liquid inlet pipe (1) is communicated with the filtering liquid inlet cavity (31), and the filtering liquid outlet pipe (6) is communicated with the filtering liquid outlet cavity (32);
the filtering filter element (4) is a folding filter element, the filtering precision is 1-5 mu m, and the capacity of accommodating pollutants is more than or equal to 650 g/(L/min).
2. The solvent rich liquid filter for natural gas purification according to claim 1, wherein the outer diameter of the filter cartridge (4) is greater than or equal to 150 mm.
3. The solvent rich filter for natural gas purification according to claim 1, wherein the liquid inlet of the filtrate inlet pipe (1) and the liquid outlet of the filtrate outlet pipe (6) are located on the same horizontal plane.
4. The solvent rich liquid filter for natural gas purification according to claim 3, wherein the filtering cylinder (3) is a vertically arranged cylinder structure, and the filtering core (4) is vertically arranged in the filtering cylinder (3); the top of the filtering cylinder body (3) is provided with a filtering cylinder body end cover (5) which can be opened and closed.
5. The solvent rich liquid filter for natural gas purification according to claim 4, wherein the number of the filtering cartridges (4) is multiple, and the multiple filtering cartridges (4) are arranged around the liquid outlet of the filtering liquid inlet pipe (1) on the partition plate (2).
6. The solvent-rich liquid filter for purifying natural gas as claimed in any one of claims 1 to 5, further comprising a filter element mounting seat (7), wherein the filter element mounting seat (7) is provided with a liquid channel along an axial direction thereof;
the filter element mounting seat (7) is mounted on the partition plate (2), the upper portion of the filter element mounting seat is detachably and hermetically connected with the filter element (4), and the liquid channel is communicated with the filtered liquid cavity (32).
7. The solvent rich liquid filter for natural gas purification according to any one of claims 1 to 5, wherein the solvent is one of ethylene glycol, triethylene glycol or amine liquid.
8. A natural gas purification system comprising the solvent rich liquid filter for natural gas purification according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221033437.1U CN217459350U (en) | 2022-04-29 | 2022-04-29 | A rich liquid filter of solvent and natural gas clean system for natural gas purifies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221033437.1U CN217459350U (en) | 2022-04-29 | 2022-04-29 | A rich liquid filter of solvent and natural gas clean system for natural gas purifies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217459350U true CN217459350U (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221033437.1U Active CN217459350U (en) | 2022-04-29 | 2022-04-29 | A rich liquid filter of solvent and natural gas clean system for natural gas purifies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217459350U (en) |
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2022
- 2022-04-29 CN CN202221033437.1U patent/CN217459350U/en active Active
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