Filter assembly applied to natural gas dehydration

Abstract

The utility model relates to the technical field of natural gas treatment, in particular to a filter assembly applied to natural gas dehydration, which comprises a filter tank main body, a lower filter cavity, an upper filter cavity, a first dehydration filter component and a second dehydration filter component, a lead screw is arranged in the penetrating type lead screw motor, a first scraping plate is arranged at the upper end of the lead screw, a second scraping plate is arranged at the lower end of the lead screw, and a first air inlet pipe is arranged at the upper end of one side of the upper filtering cavity. According to the design, the first dewatering and filtering component and the second dewatering and filtering component alternately perform dewatering and filtering operation, and the first dewatering and filtering component and the second dewatering and filtering component rotate to throw out impurities and water, so that the first dewatering and filtering component and the second dewatering and filtering component are prevented from being blocked by the impurities and the water; pollutants on the inner wall of the lower filtering cavity or the upper filtering cavity are cleaned through the first scraping plate or the second scraping plate, and accumulation of the pollutants is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas processing technical field, concretely is a filter assembly for natural gas dewatering. BACKGROUND

[0002] Natural gas refers to all gases existing in nature, including gases formed by various natural processes in the atmosphere, hydrosphere and lithosphere. Impurities and water exist in collected natural gas, affecting the combustion completeness of natural gas. A filter assembly for dewatering is needed during natural gas treatment to improve the subsequent use effect. For example, a filter assembly for a natural gas molecular sieve dewatering system is disclosed in Chinese patent (Grant Announcement No. CN219539765U). The coalescing separator, regenerative gas separator and dust filter can realize filtration and dewatering at the front end, middle and rear end of the natural gas molecular sieve dewatering system, respectively, which can filter out solid particles and liquid droplets in advance, filter out molecular sieve dust particles after adsorbing and dewatering natural gas, and is convenient to maintain and replace.

[0003] However, the filter assembly for the natural gas molecular sieve dewatering system disclosed in the prior art still has some defects that need to be improved in actual application, for example:

[0004] 1. After a period of filtration operation of the filter assembly, the impurities and water filtered by the filter element inside need to be treated after stopping dewatering and filtration. Cleaning the filter is time-consuming and laborious, and the impurities and water will block the filter element, reducing the filtration efficiency.

[0005] 2. The complete degree of the filtered pollutants is low, causing the accumulation of pollutants in the tank, affecting the dewatering and filtration operation of natural gas. Therefore, a filter assembly for natural gas dewatering is provided by the skilled person in the art to solve the problems raised in the background art. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a filter assembly for natural gas dewatering to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A filter assembly for natural gas dewatering, comprising a filter tank main body, a lower filter cavity, an upper filter cavity, a first dewatering filter member and a second dewatering filter member, the lower filter cavity is located at the lower end position of the filter tank main body, the upper filter cavity is located at the upper end position of the filter tank main body, the first dewatering filter member is located at the inner upper end position of the upper filter cavity, and the second dewatering filter member is located at the inner upper end position of the lower filter cavity.

[0009] The upper side of the filter tank body is provided with a through-type screw rod motor, the inside of the through-type screw rod motor is provided with a screw rod, the upper end of the screw rod is provided with a first scraper, and the lower end of the screw rod is provided with a second scraper.

[0010] The upper side of the filter tank body is provided with a through-type screw rod motor, the inside of the through-type screw rod motor is provided with a screw rod, the upper end of the screw rod is provided with a first scraper, and the lower end of the screw rod is provided with a second scraper.

[0011] As a further scheme of the utility model: the upper side of the filter tank body is provided with a through-type screw rod motor, the inside of the through-type screw rod motor is provided with a screw rod, the upper end of the screw rod is provided with a first scraper, and the lower end of the screw rod is provided with a second scraper.

[0012] As a further scheme of the utility model: the upper side of the filter tank body is provided with a through-type screw rod motor, the inside of the through-type screw rod motor is provided with a screw rod, the upper end of the screw rod is provided with a first scraper, and the lower end of the screw rod is provided with a second scraper.

[0013] As a further scheme of the utility model: the upper side of the filter tank body is provided with a through-type screw rod motor, the inside of the through-type screw rod motor is provided with a screw rod, the upper end of the screw rod is provided with a first scraper, and the lower end of the screw rod is provided with a second scraper.

[0014] As a further scheme of the utility model: the upper side of the filter tank body is provided with a through-type screw rod motor, the inside of the through-type screw rod motor is provided with a screw rod, the upper end of the screw rod is provided with a first scraper, and the lower end of the screw rod is provided with a second scraper.

[0015] As a further scheme of the utility model: the first dewatering filter component rotates at the inside position of the upper filter cavity, one end of the first exhaust pipe rotates at the downside position of the first dewatering filter component, the other end of the first exhaust pipe is fixed at the lower end position of the upper filter cavity, the second dewatering filter component rotates at the inside position of the upper filter cavity, one end of the second exhaust pipe rotates at the upside position of the second dewatering filter component, the other end of the second exhaust pipe is fixed at the upper end position of the lower filter cavity.

[0016] As a further scheme of the utility model: the first dewatering filter component rotates at the inside position of the upper filter cavity through the first transmission motor, the second dewatering filter component rotates at the inside position of the lower filter cavity through the second transmission motor, the inside of the hydrophobic net is penetrated with the input end of the second exhaust pipe through the upper mounting plate, one end of the second exhaust pipe rotates at the outside position of the upper mounting plate, the inside of the hydrophobic net is penetrated with the input end of the first exhaust pipe through the upper mounting plate, one end of the first exhaust pipe rotates at the outside position of the upper mounting plate.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. A filter assembly applied to natural gas dewatering, through the first dewatering filter component and the second dewatering filter component alternate dewatering filter operation, the cleaning process does not need to stop the dewatering filter operation, through the first dewatering filter component and the second dewatering filter component rotate and throw out impurities and water, avoid that the impurities and water will block the first dewatering filter component and the second dewatering filter component, keep the dewatering filter efficiency of the first dewatering filter component and the second dewatering filter component.

[0019] 2. A filter assembly applied to natural gas dewatering, through the first scraper or the second scraper clean the contaminants of the inner wall of the lower filter cavity or the upper filter cavity, avoid that the contaminants accumulate, be favorable to the cleanliness of the inside of the lower filter cavity or the upper filter cavity, improve the fluency of natural gas dewatering filtration. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structural schematic view of the filter assembly applied to natural gas dewatering;

[0021] Fig. 2 It is a perspective view of the filter assembly applied to natural gas dewatering;

[0022] Fig. 3 It is a perspective view of the second dewatering filter component in the filter assembly applied to natural gas dewatering.

[0023] In the figure: 1, filter tank main body; 2, lower filter cavity; 3, upper filter cavity; 4, first dewatering filter component; 5, second dewatering filter component; 6, through type screw rod motor; 7, screw rod; 8, first scraper; 9, second scraper; 10, first air inlet pipe; 11, second air inlet pipe; 12, first air outlet pipe; 13, second air outlet pipe; 14, first blowdown pipe; 15, second blowdown pipe; 16, first transmission motor; 17, second transmission motor; 18, water drainage net; 19, water absorption cotton; 20, impurity removal net; 21, lower mounting plate; 22, upper mounting plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] Please refer to Figs. 1-3The utility model discloses an application is dehydration's filter component for natural gas, including filter jar main part 1, lower filter cavity 2, upper filter cavity 3, first dehydration filter component 4 with second dehydration filter component 5, lower filter cavity 2 is located at the lower end position of filter jar main part 1, upper filter cavity 3 is located at the upper end position of filter jar main part 1, first dehydration filter component 4 is located at the inside upper end position of upper filter cavity 3, second dehydration filter component 5 is located at the inside upper end position of lower filter cavity 2, the upper side of filter jar main part 1 is equipped with the through -type screw rod motor 6, the inside of through -type screw rod motor 6 is provided with screw rod 7, and the upper end of screw rod 7 is provided with first scraper 8, and the lower end of screw rod 7 is provided with second scraper 9, and the upper end position of one side of upper filter cavity 3 is provided with first air inlet pipe 10, and the lower side of first dehydration filter component 4 is equipped with first exhaust pipe 12, and the lower end position of one side of upper filter cavity 3 is provided with first blowdown pipe 14, and the upper end position of one side of lower filter cavity 2 is provided with second air inlet pipe 11, and the upper side of second dehydration filter component 5 is equipped with second exhaust pipe 13, and the lower end position of one side of lower filter cavity 2 is provided with second blowdown pipe 15, and the output of first air inlet pipe 10 is penetrated with the upper end of upper filter cavity 3, and the lower end of upper filter cavity 3 is penetrated with the input of first blowdown pipe 14, and upper filter cavity 3 is penetrated with the inside of first dehydration filter component 4, and the inside of first dehydration filter component 4 is penetrated with the input of first exhaust pipe 12, and the output of second air inlet pipe 11 is penetrated with the upper end of lower filter cavity 2, and the lower end of lower filter cavity 2 is penetrated with the input of second blowdown pipe 15, and lower filter cavity 2 is penetrated with the inside of second dehydration filter component 5, and the inside of second dehydration filter component 5 is penetrated with the input of second exhaust pipe 13, and first scraper 8 is located at the inside position of upper filter cavity 3, and the upper end of screw rod 7 is slid on the upper side position of filter jar main part 1 through through -type screw rod motor 6, and first scraper 8 is slid on the inside position of upper filter cavity 3 through screw rod 7, and second scraper 9 is located at the inside position of lower filter cavity 2, and second scraper 9 is slid on the inside position of lower filter cavity 2 through screw rod 7, and first dehydration filter component 4 rotates on the inside position of upper filter cavity 3, and one end of first exhaust pipe 12 rotates on the lower side position of first dehydration filter component 4, and the other end of first exhaust pipe 12 is fixed on the lower end position of upper filter cavity 3, and second dehydration filter component 5 rotates on the inside position of upper filter cavity 3, and one end of second exhaust pipe 13 rotates on the upper side position of second dehydration filter component 5, and the other end of second exhaust pipe 13 is fixed on the upper end position of lower filter cavity 2, first, first air inlet pipe 10 and second air inlet pipe 11 are connected into feed gas pipe, and first exhaust pipe 12 and second exhaust pipe 13 are connected into discharge gas pipe, and first blowdown pipe 14 and second blowdown pipe 15 are connected into blowdown pipe, then, start dehydration filter operation, and gas enters the inside of upper filter cavity 3 through first air inlet pipe 10, and first dehydration filter component 4 filters the impurities in gas, and filters the water in gas, and the gas after dehydration and filtration enters the inside of first dehydration filter component 4,The gas inside the first dewatering filter member 4 is discharged through the first exhaust pipe 12. After the first dewatering filter member 4 dewatering filters for a period of time, the first intake pipe 10 stops the gas intake, the gas enters the inside of the lower filter cavity 2 through the second intake pipe 11, the second dewatering filter member 5 filters the impurities in the gas and the water in the gas, the dewatering filtered gas enters the inside of the second dewatering filter member 5, the gas inside the second dewatering filter member 5 is discharged through the second exhaust pipe 13, the first dewatering filter member 4 rotates, the water inside the first dewatering filter member 4 is thrown to the inner wall of the upper filter cavity 3, the impurities outside the first dewatering filter member 4 are thrown to the inner wall of the upper filter cavity 3, the cleaning and spin-drying operation of the first dewatering filter member 4 is completed, the first dewatering filter member 4 dewatering filters for a period of time, the second exhaust pipe 15 stops the gas intake, the gas is again introduced through the first intake pipe 10, the second dewatering filter member 5 rotates, the water inside the second dewatering filter member 5 is thrown to the inner wall of the lower filter cavity 2, the impurities outside the second dewatering filter member 5 are thrown to the inner wall of the lower filter cavity 2, the cleaning and spin-drying operation of the second dewatering filter member 5 is completed, the through-type lead screw motor 6 operates to drive the lead screw 7 to slide inside the filter tank main body 1, the lead screw 7 drives the first scraper 8 to slide inside the upper filter cavity 3, the lead screw 7 drives the second scraper 9 to slide inside the lower filter cavity 2, the contaminants on the inner wall of the lower filter cavity 2 or the upper filter cavity 3 are scraped, and the contaminants are discharged through the first exhaust pipe 14 or the second exhaust pipe 15.

[0026] In Fig. 2 , 3The upper side of the filter tank body 1 is provided with a first transmission motor 16 at the position corresponding to the first dewatering filter component 4, the lower side of the filter tank body 1 is provided with a second transmission motor 17 at the position corresponding to the second dewatering filter component 5, the first dewatering filter component 4 and the second dewatering filter component 5 each comprise a hydrophobic net 18, the outer side of the hydrophobic net 18 is provided with water absorbing cotton 19, the outer side of the water absorbing cotton 19 is provided with a filter screen 20, one end of the filter screen 20 is provided with a lower mounting plate 21, the other end of the filter screen 20 is provided with an upper mounting plate 22, the first dewatering filter component 4 rotates in the inner position of the upper filter cavity 3 through the first transmission motor 16, the second dewatering filter component 5 rotates in the inner position of the lower filter cavity 2 through the second transmission motor 17, the inner part of the hydrophobic net 18 penetrates the input end of the second exhaust pipe 13 through the upper mounting plate 22, one end of the second exhaust pipe 13 rotates at the outer side position of the upper mounting plate 22, the inner part of the hydrophobic net 18 penetrates the input end of the first exhaust pipe 12 through the upper mounting plate 22, one end of the first exhaust pipe 12 rotates at the outer side position of the upper mounting plate 22, the gas enters the inner part of the upper filter cavity 3 through the first gas inlet pipe 10, the filter screen 20 on the first dewatering filter component 4 filters the impurities in the gas, the water absorbing cotton 19 filters the water in the gas, the hydrophobic net 18 supports the water absorbing cotton 19, the dewatered and filtered gas enters the inner part of the hydrophobic net 18, the gas in the inner part of the hydrophobic net 18 is discharged through the first exhaust pipe 12, after the first dewatering filter component 4 dewatering and filtering for a period of time, the first gas inlet pipe 10 stops gas inlet, the gas enters the inner part of the lower filter cavity 2 through the second gas inlet pipe 11, the filter screen 20 on the second dewatering filter component 5 filters the impurities in the gas, the water absorbing cotton 19 filters the water in the gas, the hydrophobic net 18 supports the water absorbing cotton 19, the dewatered and filtered gas enters the inner part of the hydrophobic net 18, the gas in the inner part of the hydrophobic net 18 is discharged through the second exhaust pipe 13, the first transmission motor 16 drives the first dewatering filter component 4 to rotate, the water in the inner part of the water absorbing cotton 19 is thrown into the inner wall of the upper filter cavity 3, the impurities outside the filter screen 20 are thrown into the inner wall of the upper filter cavity 3, the cleaning and spin-drying operation of the first dewatering filter component 4 is completed, after the first dewatering filter component 4 dewatering and filtering for a period of time, the second exhaust pipe 15 stops gas inlet, the gas is inlet through the first gas inlet pipe 10 again, the second transmission motor 17 drives the second dewatering filter component 5 to rotate, the water in the inner part of the water absorbing cotton 19 is thrown into the inner wall of the lower filter cavity 2, the impurities outside the filter screen 20 are thrown into the inner wall of the lower filter cavity 2, the cleaning and spin-drying operation of the second dewatering filter component 5 is completed.

[0027] The working principle of the utility model is: first, the first gas inlet pipe 10 and the second gas inlet pipe 11 are connected to the feed gas pipe, the first exhaust pipe 12 and the second exhaust pipe 13 are connected to the discharge gas pipe, the first exhaust pipe 14 and the second exhaust pipe 15 are connected to the exhaust pipe;

[0028] Then, the dehydration filtering operation is started, the gas enters the inside of the upper filtering cavity 3 through the first gas inlet pipe 10, the impurity filtering net 20 on the first dehydration filtering component 4 filters the impurities in the gas, the water absorbing cotton 19 filters the water in the gas, the water-repellent net 18 supports the water absorbing cotton 19, the dehydrated and filtered gas enters the inside of the water-repellent net 18, the gas in the inside of the water-repellent net 18 is discharged through the first gas outlet pipe 12, after the first dehydration filtering component 4 dehydrates and filters for a period of time, the first gas inlet pipe 10 stops gas inlet, the gas enters the inside of the lower filtering cavity 2 through the second gas inlet pipe 11, the impurity filtering net 20 on the second dehydration filtering component 5 filters the impurities in the gas, the water absorbing cotton 19 filters the water in the gas, the water-repellent net 18 supports the water absorbing cotton 19;

[0029] The dehydrated and filtered gas enters the inside of the water-repellent net 18, the gas in the inside of the water-repellent net 18 is discharged through the second gas outlet pipe 13, the first transmission motor 16 drives the first dehydration filtering component 4 to rotate, the water in the inside of the water absorbing cotton 19 is thrown into the inner wall of the upper filtering cavity 3, the impurities outside the impurity filtering net 20 are thrown into the inner wall of the upper filtering cavity 3, and the cleaning and spin-drying operation of the first dehydration filtering component 4 is completed;

[0030] After the first dehydration filtering component 4 dehydrates and filters for a period of time, the second blow-off pipe 15 stops gas inlet, the gas inlet is started again through the first gas inlet pipe 10, the second transmission motor 17 drives the second dehydration filtering component 5 to rotate, the water in the inside of the water absorbing cotton 19 is thrown into the inner wall of the lower filtering cavity 2, the impurities outside the impurity filtering net 20 are thrown into the inner wall of the lower filtering cavity 2, and the cleaning and spin-drying operation of the second dehydration filtering component 5 is completed;

[0031] The through-type screw rod motor 6 drives the screw rod 7 to slide in the inside of the filtering tank main body 1, the screw rod 7 drives the first scraper 8 to slide in the inside of the upper filtering cavity 3, the screw rod 7 drives the second scraper 9 to slide in the inside of the lower filtering cavity 2, and the contaminants on the inner wall of the lower filtering cavity 2 or the upper filtering cavity 3 are scraped, and the contaminants are discharged through the first blow-off pipe 14 or the second blow-off pipe 15.

[0032] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A filter assembly for natural gas dehydration, characterized in that: The invention comprises a filter tank body (1), a lower filter chamber (2), an upper filter chamber (3), a first dehydration filter component (4) and a second dehydration filter component (5), wherein the lower filter chamber (2) is located at the lower end of the filter tank body (1), the upper filter chamber (3) is located at the upper end of the filter tank body (1), the first dehydration filter component (4) is located at the inner upper end of the upper filter chamber (3), and the second dehydration filter component (5) is located at the inner upper end of the lower filter chamber (2); A through-type screw motor (6) is installed on the upper side of the filter tank body (1), a screw (7) is provided inside the through-type screw motor (6), a first scraper (8) is provided at the upper end of the screw (7), and a second scraper (9) is provided at the lower end of the screw (7); A first air inlet pipe (10) is provided at the upper end of one side of the upper filter chamber (3), a first exhaust pipe (12) is installed at the lower side of the first dehydration filter element (4), a first sewage discharge pipe (14) is provided at the lower end of one side of the upper filter chamber (3), a second air inlet pipe (11) is provided at the upper end of one side of the lower filter chamber (2), a second exhaust pipe (13) is installed at the upper side of the second dehydration filter element (5), and a second sewage discharge pipe (15) is provided at the lower end of one side of the lower filter chamber (2).

2. The filter assembly for natural gas dehydration according to claim 1, characterized in that: A first transmission motor (16) is installed at a position corresponding to the first dehydration filter component (4) on the upper side of the filter tank body (1), and a second transmission motor (17) is installed at a position corresponding to the second dehydration filter component (5) on the lower side of the filter tank body (1). The first dehydration filter component (4) and the second dehydration filter component (5) both include a hydrophobic net (18), and absorbent cotton (19) is provided on the outside of the hydrophobic net (18). A filter net (20) is provided on the outside of the absorbent cotton (19), and a lower mounting plate (21) is provided at one end of the filter net (20), and an upper mounting plate (22) is provided at the other end of the filter net (20).

3. The filter assembly for natural gas dehydration according to claim 1, characterized in that: The output end of the first air inlet pipe (10) is connected to the upper end of the upper filter chamber (3), the lower end of the upper filter chamber (3) is connected to the input end of the first sewage pipe (14), the upper filter chamber (3) is connected to the interior of the first dehydration filter component (4), and the interior of the first dehydration filter component (4) is connected to the input end of the first exhaust pipe (12).

4. The filter assembly for natural gas dehydration according to claim 1, characterized in that: The output end of the second air inlet pipe (11) is connected to the upper end of the lower filter chamber (2), the lower end of the lower filter chamber (2) is connected to the input end of the second sewage pipe (15), the lower filter chamber (2) is connected to the interior of the second dehydration filter element (5), and the interior of the second dehydration filter element (5) is connected to the input end of the second exhaust pipe (13).

5. The filter assembly for natural gas dehydration according to claim 1, characterized in that: The first scraper (8) is located at an internal position of the upper filter chamber (3), the upper end of the screw rod (7) slides at an upper position of the filter tank body (1) through a through-type screw rod motor (6), the first scraper (8) slides at an internal position of the upper filter chamber (3) through the screw rod (7), the second scraper (9) is located at an internal position of the lower filter chamber (2), and the second scraper (9) slides at an internal position of the lower filter chamber (2) through the screw rod (7).

6. The filter assembly for natural gas dehydration according to claim 1, characterized in that: The first dehydration filter member (4) rotates at an internal position of the upper filter chamber (3), one end of the first exhaust pipe (12) rotates at a lower position of the first dehydration filter member (4), and the other end of the first exhaust pipe (12) is fixed at a lower end position of the upper filter chamber (3); the second dehydration filter member (5) rotates at an internal position of the upper filter chamber (3), one end of the second exhaust pipe (13) rotates at an upper position of the second dehydration filter member (5), and the other end of the second exhaust pipe (13) is fixed at an upper end position of the lower filter chamber (2).

7. The filter assembly for natural gas dehydration according to claim 2, characterized in that: The first dehydration filter element (4) is rotated at an internal position of the upper filter chamber (3) through a first transmission motor (16), and the second dehydration filter element (5) is rotated at an internal position of the lower filter chamber (2) through a second transmission motor (17). The interior of the hydrophobic net (18) is connected to the input end of the second exhaust pipe (13) through an upper mounting plate (22), and one end of the second exhaust pipe (13) is rotated at an outer position of the upper mounting plate (22). The interior of the hydrophobic net (18) is connected to the input end of the first exhaust pipe (12) through the upper mounting plate (22), and one end of the first exhaust pipe (12) is rotated at an outer position of the upper mounting plate (22).

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