CN112029549B - Integral natural gas purifying and dehydrating device - Google Patents
Integral natural gas purifying and dehydrating device Download PDFInfo
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- CN112029549B CN112029549B CN202010636113.6A CN202010636113A CN112029549B CN 112029549 B CN112029549 B CN 112029549B CN 202010636113 A CN202010636113 A CN 202010636113A CN 112029549 B CN112029549 B CN 112029549B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
Abstract
The invention discloses an integrated natural gas purification and dehydration device, which comprises a first filtering device, a second filtering device and a third filtering device, wherein the first filtering device is used for preliminarily filtering gas, removing solid particle impurities contained in the natural gas and simultaneously preliminarily removing condensed liquid or liquid drops contained in the natural gas; the second filter equipment can carry out secondary filter to the natural gas, further carries out gas dehydration, gets rid of remaining vapor in the gas, and the third filter equipment can carry out the cubic to gas and filter, gets rid of impurity gas when getting rid of remaining vapor, realizes the purification dehydration of natural gas. In the technical scheme, the first air outlet pipe and the second air outlet pipe are designed to realize the communication among the first filtering device, the second filtering device and the third filtering device; this technical scheme structural design is reasonable, and easy operation not only has effectively realized the purification dehydration effect of natural gas, has improved dehydration efficiency moreover, has higher practicality.
Description
Technical Field
The invention relates to the technical field of gas purification, in particular to an integrated natural gas purification and dehydration device.
Background
Natural gas is used as a clean, efficient and convenient high-quality fuel and an important chemical raw material, the application range of the natural gas is very wide, but the components of the currently exploited wellhead natural gas are very complex, and the natural gas can enter a pipeline to be conveyed after being processed by a series of processes.
In the natural gas treatment process, at first need dewater the natural gas, avoid it to have under the condition that someone exists acid gas to the corruption of pipeline equipment, avoid generating hydrate and block up the pipeline, nevertheless to the natural gas dehydration problem, current dehydration effect is relatively poor, and work efficiency is low, brings inconvenience for us.
In order to solve the problem, an integrated natural gas purifying and dehydrating device is designed for providing dehydration efficiency of natural gas.
Disclosure of Invention
The invention aims to provide an integrated natural gas purifying and dehydrating device to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the integrated natural gas purification and dehydration device comprises a first filtering device, a second filtering device and a third filtering device, wherein a plurality of air inlet pipes are arranged at the top end of the first filtering device; a second air outlet pipe is arranged between the second filtering device and the third filtering device, and two ends of the second air outlet pipe are respectively communicated with the second filtering device and the third filtering device; and a third air outlet pipe is arranged at the bottom end of the third filtering device.
The integrated natural gas purifying and dehydrating device comprises a first filtering device, a second filtering device and a third filtering device, wherein the first filtering device is used for preliminarily filtering gas, removing solid particle impurities contained in the natural gas and simultaneously preliminarily removing condensate or liquid drops contained in the natural gas; the second filter equipment can carry out secondary filter to the natural gas, further carries out gas dehydration, gets rid of remaining vapor in the gas, and the third filter equipment can carry out the cubic to gas and filter, gets rid of impurity gas when getting rid of remaining vapor, realizes the purification dehydration of natural gas.
The design of first outlet duct, second outlet duct among this technical scheme is used for realizing the intercommunication between first filter equipment, second filter equipment and the third filter equipment, guarantees the smooth operation of whole device.
Preferably, the first filtering device comprises a first shell, the plurality of air inlet pipes are uniformly distributed at the top end of the first shell, a filtering plate is horizontally arranged in the first shell, and the filtering plate divides the space in the first shell into an upper cavity and a lower cavity; a plurality of first through pipes which are parallel to each other are arranged in the lower cavity, second through pipes are horizontally arranged at the bottom ends of the first through pipes, and the bottom ends of the first through pipes are communicated with the second through pipes; one end of the second flow pipe penetrates through the first shell and is communicated with the first air outlet pipe; baffle plates are arranged between the adjacent first through-flow pipes, first through holes are formed in one sides, close to the baffle plates, of the first through-flow pipes, and first water absorption blocks are arranged below the baffle plates.
In the technical scheme, the first filtering device comprises a first shell, an air inlet pipe and a filtering plate, wherein the first shell can protect each component, so that the service life of the device is prolonged; the natural gas enters the first shell through the gas inlet pipe and is primarily filtered through the filter plate, and the filter plate is designed at the position because the natural gas contains a small amount of solid particles, so that the solid particles contained in the natural gas can be removed, and the subsequent situations such as pipeline blockage are avoided; a plurality of first through pipes which are parallel to each other are also designed in the first shell, and after the natural gas enters the first through pipes, the natural gas can circulate through the first through holes on the side walls of the first through pipes, so that the gas flow is accelerated; meanwhile, the baffle plate is designed between the adjacent first circulation pipes, due to the fact that the density of gas and liquid is different, the inertia of the liquid is large, when the natural gas contacts the baffle plate through the first through hole, collision can occur, liquid drops contained in the natural gas realize gas-liquid separation through collision, and therefore dehydration is achieved.
In the technical scheme, the first water absorption blocks are arranged below the baffle plate and are made of water absorption resin, so that liquid drops separated when natural gas collides with the baffle plate can be absorbed, and the situation that the liquid drops are taken away again when subsequent gas collides with the baffle plate is avoided.
Preferably, a support plate is arranged in parallel in the lower cavity and is positioned above the first through pipe, the upper end of the first through pipe penetrates through the support plate, and the lower end of the first through pipe is communicated with the second through pipe; the baffle plate comprises a first folded plate and a second folded plate which are symmetrical to each other, the top ends of the first folded plate and the second folded plate are respectively fixed on the bottom surface of the supporting plate, and the bottom ends of the first folded plate and the second folded plate are respectively abutted against the first water absorbing block.
Preferably, the surfaces of the first folded plate and the second folded plate are uniformly provided with a plurality of convex blocks.
In the technical scheme, a support plate is designed in a first shell and used for providing supporting force for a first flow pipe; the baffle plate comprises a first folded plate and a second folded plate which are symmetrical to each other, the contact area between the baffle plate and the natural gas is increased due to the design of the two folded plates, and the dehydration effect is improved.
A plurality of lugs are evenly arranged on the surfaces of the first folded plate and the second folded plate in the technical scheme, and the design of the lugs further improves the contact area between the folded plate and the natural gas, so that the separation rate of liquid drops is greatly increased, and the dewatering effect is better.
Preferably, the second filter device comprises a second shell, a first dehydration unit, a second dehydration unit and a third dehydration unit which are communicated with each other are arranged in the second shell from bottom to top, the first dehydration unit, the second dehydration unit and the third dehydration unit are arranged in parallel, the first dehydration unit is communicated with the first air outlet pipe, and the third dehydration unit is communicated with the second air outlet pipe.
The second filtering device is designed in the technical scheme, and because the first filtering device adopts the baffle plate for filtering, the liquid drops sometimes collide and are crushed with the baffle plate to generate thinner liquid drops, so that the second filtering device can further filter the natural gas to remove the fine liquid drops contained in the natural gas; when the natural gas enters the first dehydration unit, the gas flows through the second through hole of the first pipeline, the screen mesh and the second through hole of the second pipeline, and the natural gas can be sieved through the screen mesh for dehydration.
Preferably, the first dewatering unit, the second dewatering unit and the third dewatering unit are identical in structure, the first dewatering unit comprises a first pipeline and a second pipeline which are parallel to each other, a wire mesh is arranged between the first pipeline and the second pipeline, and second through holes are formed in one sides of the first pipeline and the second pipeline, which are close to the wire mesh.
Preferably, the third filtering device comprises a third shell and a filtering membrane, the filtering membrane comprises a first filtering membrane and a second filtering membrane, the first filtering membrane and the second filtering membrane are both vertically arranged in the third shell, and the first filtering membrane and the second filtering membrane divide the space in the third shell into a left cavity, a middle cavity and a right cavity; the left cavity and the right cavity are both provided with a third filter membrane, the third filter membranes are respectively attached to one side of the first filter membrane and one side of the second filter membrane, the bottom ends of the left cavity and the right cavity are both provided with a second water absorption block, and the other end of the second air outlet pipe penetrates through the third shell and is communicated with the top end of the middle cavity; and the third air outlet pipe is communicated with the bottom end of the middle cavity.
In the technical scheme, the third filtering device comprises a third shell and filtering membranes, wherein the first filtering membrane and the second filtering membrane are microporous membranes made of materials such as polysulfone, acetate fiber, polyimide and the like, and when natural gas passes through the first filtering membrane and the second filtering membrane, the natural gas is enriched on two sides of the membranes due to different permeation speeds of components, so that component separation is realized; therefore, when natural gas passes through the first filter membrane and the second filter membrane, residual water vapor, carbon dioxide, sulfur dioxide and other gases contained in the natural gas can permeate the filter membranes and respectively enter the left cavity and the right cavity, and the separated and purified dry natural gas can enter the third gas outlet pipe through the middle cavity.
Preferably, the third filter device further comprises a return pipe, the return pipe comprises a first return pipe, a second return pipe and a third return pipe, one end of the first return pipe is communicated with the third air outlet pipe, and the other end of the first return pipe is communicated with the top end of the left cavity; one end of the second return pipe is communicated with the third air outlet pipe, and the other end of the second return pipe is communicated with the top end of the right cavity; one end of the third return pipe is communicated with the bottom end of the left cavity and the bottom end of the right cavity respectively, and the other end of the third return pipe is communicated with the second air outlet pipe.
According to the technical scheme, the return pipe is designed, the separated and purified dry natural gas can enter the third gas outlet pipe, one part of the dry natural gas is discharged, and the other part of the dry natural gas respectively enters the left cavity and the right cavity through the first return pipe and the second return pipe again and is dried and blown, so that the separation effect of the natural gas is improved, and the removal efficiency of water vapor is improved; after purging is finished, the part of natural gas in contact with the water vapor can enter the second air outlet pipe through the third return pipe and reenter the third filtering device for filtering, so that the design can effectively realize the recycling of the natural gas and avoid the investment of redundant resources.
Preferably, the first air outlet pipe, the second air outlet pipe and the third air outlet pipe are respectively provided with a control valve, and the third filter membrane is a super-hydrophilic membrane.
The control valve is designed in the technical scheme and used for controlling the opening and closing of the first air outlet pipe, the second air outlet pipe and the third air outlet pipe, so that the working condition of the whole device can be effectively controlled; in the technical scheme, the third filter membrane is a super-hydrophilic membrane, when gas enters the third filter device, the gas can be filtered through the first filter membrane and the second filter membrane, water vapor and impurity gas can pass through the first filter membrane and the second filter membrane and respectively enter the left cavity and the right cavity, and at the moment, in order to improve liquid condensation, the third filter membrane is arranged in the technical scheme, has super-hydrophilicity, can effectively adsorb the water vapor, ensures that the filtered water vapor can be adsorbed by the second water absorption block, and avoids the situations of pipeline corrosion and the like; wherein the second water absorption block is water absorption resin.
Compared with the prior art, the invention has the beneficial effects that:
when the natural gas filtering device works, firstly, natural gas enters the upper cavity of the first shell through the gas inlet pipe and is filtered through the filter plate, so that solid particles contained in the natural gas are removed, and the situations of pipeline blockage and the like are avoided; then, the first through hole on the side wall of the first flow pipe is utilized to accelerate gas flow, and the first through hole is matched with the baffle plate to dewater, so that liquid drops in the natural gas are separated out, and preliminary dewatering is realized; the water vapor is gathered by a second filtering device and is separated by matching with a wire mesh, so that the water vapor contained in the natural gas is further removed; and finally, the natural gas enters a third filtering device through a second gas outlet pipe, the third filtering device utilizes a membrane separation method, impurity gas and residual water vapor in the natural gas are separated by utilizing the permeation speed of substances to a membrane, and the third filtering device is dried and blown by utilizing the separated pure gas, so that the dehydration effect is improved.
This technical scheme has designed an integral type natural gas purification dewatering device, and structural design is reasonable, and easy operation has not only effectively realized the purification dehydration effect of natural gas, has improved dehydration efficiency moreover, has higher practicality.
Drawings
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
FIG. 1 is a schematic view of the overall structure of the integrated gas purification and dehydration apparatus of the present invention;
FIG. 2 is a schematic structural diagram of a first filtering device of the integrated gas purifying and dehydrating device of the present invention;
FIG. 3 is a schematic structural diagram of a first filtering device of the integrated gas purifying and dehydrating device of the present invention;
FIG. 4 is a schematic structural diagram of a second filtering device of the integrated gas purifying and dehydrating device of the present invention;
FIG. 5 is a schematic structural diagram of a second filtering device of the integrated gas purifying and dehydrating device of the present invention;
FIG. 6 is a schematic structural view of a third filtering device of the integrated gas purifying and dehydrating device of the present invention;
FIG. 7 is a schematic structural diagram of a third filtering device of the integrated gas purifying and dehydrating device of the present invention;
FIG. 8 is an enlarged view A of a portion of the first filter device shown in FIG. 3 of the integrated gas purification and dehydration apparatus of the present invention;
FIG. 9 is an enlarged view B of a portion of the second filtering device shown in FIG. 5 of the integrated gas purification and dehydration apparatus of the present invention;
FIG. 10 is a partial enlarged view C of the third filtering device in FIG. 7 of the integrated gas purifying and dehydrating apparatus of the present invention.
In the figure: 1-a first filtering device, 11-a first shell, 12-a filtering plate, 13-an upper cavity, 14-a lower cavity, 15-a first circulation pipe, 151-a first through hole, 16-a second circulation pipe, 17-a baffle plate, 171-a first baffle plate, 172-a second baffle plate, 173-a convex block, 18-a first water absorption block, 19-a support plate, 2-a second filtering device, 21-a second shell, 22-a first dehydration unit, 221-a first pipeline, 222-a second pipeline, 223-a silk screen, 224-a second through hole, 23-a second dehydration unit, 24-a third dehydration unit, 3-a third filtering device, 31-a third shell, 32-a first filtering membrane, 33-a second filtering membrane, 34-a left cavity, 341-a second water absorption block, 342-a third filter membrane, 35-a middle cavity, 36-a right cavity, 37-a first return pipe, 38-a second return pipe, 39-a third return pipe, 4-an air inlet pipe, 5-a first air outlet pipe, 6-a second air outlet pipe and 7-a third air outlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-10, the integrated gas purification and dehydration device comprises a first filtering device 1, a second filtering device 2 and a third filtering device 3, wherein a plurality of gas inlet pipes 4 are arranged at the top end of the first filtering device 1, a first gas outlet pipe 5 is arranged between the first filtering device 1 and the second filtering device 2, and two ends of the first gas outlet pipe 5 are respectively communicated with the first filtering device 1 and the second filtering device 2; a second air outlet pipe 6 is arranged between the second filtering device 2 and the third filtering device 3, and two ends of the second air outlet pipe 6 are respectively communicated with the second filtering device 2 and the third filtering device 3; and a third air outlet pipe 7 is arranged at the bottom end of the third filtering device 3.
The technical scheme designs an integrated gas purification and dehydration device, which comprises a first filtering device 1, a second filtering device 2 and a third filtering device 3, wherein the first filtering device 1 is used for primarily filtering gas, removing solid particle impurities contained in the natural gas and simultaneously primarily removing condensed liquid or liquid drops contained in the natural gas; the second filter device 2 can carry out secondary filtration to the natural gas, further carries out gas dehydration, gets rid of remaining vapor in the gas, and the third filter device 3 can carry out the cubic to gas and filter, gets rid of impurity gas when getting rid of remaining vapor, realizes the purification dehydration of natural gas.
The design of first outlet duct 5, second outlet duct 6 is used for realizing the intercommunication between first filter equipment 1, second filter equipment 2 and the third filter equipment 3 among this technical scheme, guarantees the smooth operation of whole device.
The first filtering device 1 comprises a first shell 11, the plurality of air inlet pipes 4 are uniformly distributed at the top end of the first shell 11, a filtering plate 12 is horizontally arranged in the first shell 11, and the filtering plate 12 divides the space in the first shell 11 into an upper cavity 13 and a lower cavity 14; a plurality of first through pipes 15 which are parallel to each other are arranged in the lower cavity 14, a second through pipe 16 is horizontally arranged at the bottom end of each first through pipe 15, and the bottom ends of the first through pipes 15 are communicated with the second through pipes 16; one end of the second flow pipe 16 penetrates through the first shell 11 and is communicated with the first air outlet pipe 5; baffle plates 17 are arranged between the adjacent first circulation pipes 15, first through holes 151 are formed in one sides, close to the baffle plates 17, of the first circulation pipes 15, and first water absorption blocks 18 are arranged below the baffle plates 17.
In the technical scheme, the first filtering device 1 comprises a first shell 11, an air inlet pipe 4 and a filtering plate 12, wherein the first shell 11 can protect each component, so that the service life of the device is prolonged; the natural gas enters the first shell 11 through the gas inlet pipe 4 and is primarily filtered through the filter plate 12, and the filter plate 12 is designed at the position because the natural gas contains a small amount of solid particles, so that the solid particles contained in the natural gas can be removed, and the subsequent situations such as pipeline blockage are avoided; a plurality of first flow pipes 15 which are parallel to each other are also designed in the first shell 11, and after the natural gas enters the first flow pipes 15, the natural gas can flow through the first through holes 151 on the side walls of the first flow pipes 15, so that the gas flow is accelerated; meanwhile, the baffle plate 17 is arranged between the adjacent first circulation pipes 15, due to the fact that the densities of gas and liquid are different, the inertia of the liquid is large, when the natural gas contacts the baffle plate 17 through the first through holes 151, collision can occur, liquid drops in the natural gas realize gas-liquid separation through collision, and therefore dehydration is achieved.
In the technical scheme, the first water absorption blocks 18 are arranged below the baffle plate 17, the first water absorption blocks 18 are made of water absorption resin, and can absorb liquid drops separated when natural gas collides with the baffle plate 17, and meanwhile, the situation that the liquid drops are taken away again when subsequent gas collides with the baffle plate 17 is avoided.
A support plate 19 is arranged in the lower cavity 14 in parallel, the support plate 19 is positioned above the first through pipe 15, the upper end of the first through pipe 15 penetrates through the support plate 19, and the lower end of the first through pipe is communicated with the second through pipe 16; the baffle plate 17 comprises a first folded plate 171 and a second folded plate 172 which are symmetrical to each other, the top ends of the first folded plate 171 and the second folded plate 172 are respectively fixed on the bottom surface of the supporting plate 19, and the bottom ends of the first folded plate 171 and the second folded plate 172 are respectively abutted against the first water absorbing block 18.
A plurality of bumps 173 are uniformly formed on the surfaces of the first folding plate 171 and the second folding plate 172.
In the technical scheme, a supporting plate 19 is designed in the first shell 11, and the supporting plate 19 is used for providing supporting force for the first flow pipe 15; the baffle plate 17 comprises a first folding plate 171 and a second folding plate 172 which are symmetrical to each other, and the design of the two folding plates increases the contact area between the baffle plate 17 and the natural gas, so that the dehydration effect is improved.
In the technical scheme, the surfaces of the first folding plate 171 and the second folding plate 172 are uniformly provided with a plurality of convex blocks 173, and the design of the convex blocks 173 further improves the contact area between the baffle plate 17 and the natural gas, so that the liquid drop separation rate is greatly increased, and the dehydration effect is better.
Second filter equipment 2 includes second casing 21, be equipped with first dehydration unit 22, second dehydration unit 23 and the third dehydration unit 24 that communicate each other in the second casing 21 from bottom to top, first dehydration unit 22, second dehydration unit 23 and the 24 parallel arrangement of third dehydration unit, first dehydration unit 22 and 5 intercommunications of first outlet duct, third dehydration unit 24 and 6 intercommunications of second outlet duct.
The second filtering device 2 is designed in the technical scheme, and because the first filtering device 1 adopts the baffle plate 17 for filtering, liquid drops sometimes collide and are crushed with the baffle plate 17 to generate thinner liquid drops, so that the second filtering device can further filter the natural gas to remove fine micro liquid drops contained in the natural gas; when the natural gas enters the first dehydration unit 22, the gas flows through the second through-hole 224 of the first pipe 221, the wire mesh 223, and the second through-hole 224 of the second pipe 222, and the sieving dehydration may be performed through the wire mesh 223.
The first dewatering unit 22, the second dewatering unit 23 and the third dewatering unit 24 have the same structure, the first dewatering unit 22 includes a first pipeline 221 and a second pipeline 222 which are parallel to each other, a wire mesh 223 is arranged between the first pipeline 221 and the second pipeline 222, and second through holes 224 are respectively formed in one sides of the first pipeline 221 and the second pipeline 222 close to the wire mesh 223.
The third filtering device 3 comprises a third shell 31 and filtering membranes, the filtering membranes comprise a first filtering membrane 32 and a second filtering membrane 33, the first filtering membrane 32 and the second filtering membrane 33 are both vertically arranged in the third shell 31, and the space in the third shell 31 is divided into a left cavity 34, a middle cavity 35 and a right cavity 36 by the first filtering membrane 32 and the second filtering membrane 33; the left cavity 34 and the right cavity 36 are both internally provided with a third filter membrane 342, the third filter membrane 342 is respectively attached to one side of the first filter membrane 32 and one side of the second filter membrane 33, the bottom end of the left cavity 34 and the bottom end of the right cavity 36 are both provided with a second water absorption block 341, and the other end of the second air outlet pipe 6 penetrates through the third shell 31 and is communicated with the top end of the middle cavity 35; the third air outlet pipe 7 is communicated with the bottom end of the middle cavity 35.
In the technical scheme, the third filtering device 3 comprises a third shell 31 and filtering membranes, wherein the first filtering membrane 32 and the second filtering membrane 33 are microporous membranes made of materials such as polysulfone, cellulose acetate, polyimide and the like, and when natural gas passes through the first filtering membrane 32 and the second filtering membrane 33, the natural gas is enriched on two sides of the membranes due to different permeation speeds of various components, so that component separation is realized; therefore, when the natural gas passes through the first filter membrane 32 and the second filter membrane 33, residual water vapor, carbon dioxide, sulfur dioxide and other gases contained in the natural gas can permeate through the filter membranes and respectively enter the left cavity 34 and the right cavity 36, and the separated and purified dry natural gas can enter the third gas outlet pipe 7 through the middle cavity 35.
The third filter device 3 further comprises a return pipe, the return pipe comprises a first return pipe 37, a second return pipe 38 and a third return pipe 39, one end of the first return pipe 37 is communicated with the third air outlet pipe 7, and the other end of the first return pipe is communicated with the top end of the left cavity 34; one end of the second return pipe 38 is communicated with the third air outlet pipe 7, and the other end is communicated with the top end of the right cavity 36; one end of the third return pipe 39 is respectively communicated with the bottom end of the left cavity 34 and the bottom end of the right cavity 36, and the other end is communicated with the second air outlet pipe 6.
In the technical scheme, the return pipe is designed, the separated and purified dry natural gas can enter the third gas outlet pipe 7, one part of the dry natural gas is discharged, and the other part of the dry natural gas respectively enters the left cavity 34 and the right cavity 36 through the first return pipe 37 and the second return pipe 38 again and is dried and blown, so that the separation effect of the natural gas is improved, and the removal efficiency of water vapor is improved; after the purging is finished, the part of the natural gas contacting with the water vapor can enter the second air outlet pipe 6 through the third return pipe 39 and enter the third filtering device 3 again for filtering, so that the design can effectively realize the recycling of the natural gas and avoid the investment of redundant resources.
Control valves are respectively arranged on the first air outlet pipe 5, the second air outlet pipe 6 and the third air outlet pipe 7, and the third filter membrane 342 is a super-hydrophilic membrane.
In the technical scheme, a control valve is designed and used for controlling the opening and closing of the first air outlet pipe 5, the second air outlet pipe 6 and the third air outlet pipe 7, so that the working condition of the whole device can be effectively controlled; in the technical scheme, the third filter membrane 342 is a super-hydrophilic membrane, when gas enters the third filter device 3, the gas can be filtered through the first filter membrane 32 and the second filter membrane 33, water vapor and impurity gas can pass through the first filter membrane 32 and the second filter membrane 33 and respectively enter the left cavity 34 and the right cavity 36, at the moment, in order to improve liquid condensation, the third filter membrane 342 is arranged in the technical scheme, the third filter membrane 342 has super-hydrophilicity, the water vapor can be effectively adsorbed, the water vapor after being filtered can be adsorbed by the second water absorption block 341, and the situations of pipeline corrosion and the like are avoided; wherein the second water absorbing block 341 is a water absorbing resin.
When the natural gas filtering device works, firstly, natural gas enters the upper cavity 13 of the first shell 11 through the gas inlet pipe 4 and is filtered through the filter plate 12, so that solid particles contained in the natural gas are removed, and the situations such as pipeline blockage are avoided; then, the first through holes 151 in the side wall of the first flow pipe 15 are used for accelerating the gas flow, and the baffle plate 17 is matched for dehydration, so that liquid drops in the natural gas are separated out, and preliminary dehydration is realized; then the water vapor is gathered by the second filtering device 2 and is separated by matching with a wire mesh 223, so that the water vapor contained in the natural gas is further removed; and finally, the natural gas enters the third filtering device 3 through the second gas outlet pipe 6, the third filtering device 3 utilizes a membrane separation method, impurity gas and residual water vapor in the natural gas are separated by utilizing the permeation speed of substances to the membrane, and the third filtering device 3 is dried and swept by utilizing the separated pure gas, so that the dehydration effect is improved.
This technical scheme has designed a gaseous purification dewatering device of integral type, and structural design is reasonable, and easy operation has not only effectively realized the purification dehydration effect of natural gas, has improved dehydration efficiency moreover, has higher practicality.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (2)
1. Integral type natural gas purifies dewatering device, its characterized in that: the purifying and dehydrating device comprises a first filtering device (1), a second filtering device (2) and a third filtering device (3), a plurality of air inlet pipes (4) are arranged at the top end of the first filtering device (1), a first air outlet pipe (5) is arranged between the first filtering device (1) and the second filtering device (2), and two ends of the first air outlet pipe (5) are respectively communicated with the first filtering device (1) and the second filtering device (2); a second air outlet pipe (6) is arranged between the second filtering device (2) and the third filtering device (3), and two ends of the second air outlet pipe (6) are respectively communicated with the second filtering device (2) and the third filtering device (3); a third air outlet pipe (7) is arranged at the bottom end of the third filtering device (3);
the first filtering device (1) comprises a first shell (11), the plurality of air inlet pipes (4) are uniformly distributed at the top end of the first shell (11), a filtering plate (12) is horizontally arranged in the first shell (11), and the filtering plate (12) divides the space in the first shell (11) into an upper cavity (13) and a lower cavity (14); a plurality of first through pipes (15) which are parallel to each other are arranged in the lower cavity (14), second through pipes (16) are horizontally arranged at the bottom ends of the first through pipes (15), and the bottom ends of the first through pipes (15) are communicated with the second through pipes (16); one end of the second through pipe (16) penetrates through the first shell (11) and is communicated with the first air outlet pipe (5); baffle plates (17) are arranged between every two adjacent first circulation pipes (15), first through holes (151) are formed in one side, close to the baffle plates (17), of each first circulation pipe (15), and first water absorption blocks (18) are arranged below the baffle plates (17);
the second filtering device (2) comprises a second shell (21), a first dehydration unit (22), a second dehydration unit (23) and a third dehydration unit (24) which are communicated with each other are arranged in the second shell (21) from bottom to top, the first dehydration unit (22), the second dehydration unit (23) and the third dehydration unit (24) are arranged in parallel, the first dehydration unit (22) is communicated with a first air outlet pipe (5), and the third dehydration unit (24) is communicated with a second air outlet pipe (6);
the third filtering device (3) comprises a third shell (31) and filtering membranes, the filtering membranes comprise a first filtering membrane (32) and a second filtering membrane (33), the first filtering membrane (32) and the second filtering membrane (33) are both vertically arranged in the third shell (31), and the first filtering membrane (32) and the second filtering membrane (33) divide the space in the third shell (31) into a left cavity (34), a middle cavity (35) and a right cavity (36); third filter membranes (342) are arranged in the left cavity (34) and the right cavity (36), the third filter membranes (342) are respectively attached to one sides of the first filter membrane (32) and the second filter membrane (33), second water absorption blocks (341) are arranged at the bottom end of the left cavity (34) and the bottom end of the right cavity (36), and the other end of the second air outlet pipe (6) penetrates through the third shell (31) and is communicated with the top end of the middle cavity (35); the third air outlet pipe (7) is communicated with the bottom end of the middle cavity (35);
the third filtering device (3) further comprises a return pipe, the return pipe comprises a first return pipe (37), a second return pipe (38) and a third return pipe (39), one end of the first return pipe (37) is communicated with the third air outlet pipe (7), and the other end of the first return pipe is communicated with the top end of the left cavity (34); one end of the second return pipe (38) is communicated with the third air outlet pipe (7), and the other end is communicated with the top end of the right cavity (36); one end of the third return pipe (39) is respectively communicated with the bottom end of the left cavity (34) and the bottom end of the right cavity (36), and the other end of the third return pipe is communicated with the second air outlet pipe (6);
a supporting plate (19) is arranged in the lower cavity (14) in parallel, the supporting plate (19) is positioned above the first flow pipe (15), the upper end of the first flow pipe (15) penetrates through the supporting plate (19), and the lower end of the first flow pipe is communicated with the second flow pipe (16); the baffle plate (17) comprises a first folded plate (171) and a second folded plate (172) which are symmetrical to each other, the top ends of the first folded plate (171) and the second folded plate (172) are respectively fixed on the bottom surface of the supporting plate (19), and the bottom ends of the first folded plate (171) and the second folded plate (172) are respectively abutted against the first water absorption block (18);
control valves are respectively arranged on the first air outlet pipe (5), the second air outlet pipe (6) and the third air outlet pipe (7), and the third filter membrane (342) is a super-hydrophilic membrane.
2. The integrated natural gas purification and dehydration apparatus according to claim 1, characterized in that: a plurality of convex blocks (173) are uniformly arranged on the surfaces of the first folded plate (171) and the second folded plate (172).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010636113.6A CN112029549B (en) | 2019-09-09 | 2019-09-09 | Integral natural gas purifying and dehydrating device |
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| CN201910846009.7A CN110511800B (en) | 2019-09-09 | 2019-09-09 | Integrated gas purification and dehydration device |
| CN202010636113.6A CN112029549B (en) | 2019-09-09 | 2019-09-09 | Integral natural gas purifying and dehydrating device |
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| CN201910846009.7A Active CN110511800B (en) | 2019-09-09 | 2019-09-09 | Integrated gas purification and dehydration device |
| CN202010636113.6A Active CN112029549B (en) | 2019-09-09 | 2019-09-09 | Integral natural gas purifying and dehydrating device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110511800A (en) | 2019-11-29 |
| CN112029550B (en) | 2022-02-01 |
| CN112029549A (en) | 2020-12-04 |
| CN112029550A (en) | 2020-12-04 |
| CN110511800B (en) | 2020-08-07 |
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