CN117363391B - Wet natural gas drying equipment for natural gas liquefaction pretreatment - Google Patents
Wet natural gas drying equipment for natural gas liquefaction pretreatment Download PDFInfo
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- CN117363391B CN117363391B CN202311650642.1A CN202311650642A CN117363391B CN 117363391 B CN117363391 B CN 117363391B CN 202311650642 A CN202311650642 A CN 202311650642A CN 117363391 B CN117363391 B CN 117363391B
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- natural gas
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- side wall
- pipe
- plate
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 239000003345 natural gas Substances 0.000 title claims abstract description 69
- 238000001035 drying Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 93
- 238000000926 separation method Methods 0.000 claims abstract description 83
- 239000007789 gas Substances 0.000 claims abstract description 18
- 239000002808 molecular sieve Substances 0.000 claims description 27
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 27
- 238000009423 ventilation Methods 0.000 claims description 21
- 230000008602 contraction Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention belongs to the technical field of natural gas pretreatment, in particular to wet natural gas drying equipment for natural gas liquefaction pretreatment, which comprises a base, wherein a driving motor is fixedly arranged in the base, a separation box is arranged at the top of the base, and the wet natural gas drying equipment further comprises a base; the air suction assembly comprises an air collection frame, a piston plate is connected to the inside of the air collection frame in a sliding manner, an expansion plate is connected to the bottom end of the air collection frame in a sliding manner, an expansion groove is formed in the side wall of the piston plate, a pushing groove is formed in the top wall surface of the base, and a sealing strip is fixedly arranged on the top wall surface of the expansion plate; according to the invention, the two piston plates are pushed to move towards the far end by the expansion plate, so that the residual natural gas in the separation box is sucked into the gas collecting frame, and meanwhile, the gas collecting frame and the part communicated with the separation box are sealed by the sealing strip, so that the waste caused by the loss of the residual natural gas is avoided, and the problem of waste caused by the fact that the existing residual natural gas flows away along with water vapor is solved.
Description
Technical Field
The invention relates to the technical field of natural gas pretreatment, in particular to wet natural gas drying equipment for natural gas liquefaction pretreatment.
Background
Before liquefaction, in order to avoid the influence of moisture in the natural gas on the combustion of the natural gas, the natural gas needs to be subjected to drying treatment, and the moisture in the natural gas is separated so as to carry out the drying treatment on the natural gas.
The Chinese patent publication No. CN115350570B discloses wet natural gas drying equipment for natural gas liquefaction pretreatment. The device comprises a bottom plate, a switching plate and a separation box, wherein the top of the bottom plate is connected with the switching plate in a sliding mode, and both sides of the top of the switching plate are connected with the separation box. Before the molecular sieve is used for separating the moisture in the weather, a large amount of liquid in the natural gas and the large-diameter drip can be separated in advance, so that a large amount of drip is prevented from being directly adsorbed by the molecular sieve, the molecular sieve is easier to form crystals, the molecular sieve is bonded with each other by the moisture, and the molecular sieve is formed into a plate, so that the molecular sieve becomes waste, and the regeneration baking frequency of the molecular sieve can be reduced.
In the above-mentioned prior art scheme, through setting up two separator boxes, make a separator box carry out drying process to the natural gas, carry out regeneration treatment to the molecular sieve in another separator box, guarantee the drying efficiency of natural gas, but in the in-service use's in-process, when separator box and intake pipe disconnection, the inside of separator box can remain partial natural gas, when the toaster carries out regeneration treatment to the molecular sieve this moment, the natural gas is discharged along with steam together, leads to the waste of natural gas.
Disclosure of Invention
In order to solve the technical problems, the invention provides wet natural gas drying equipment for natural gas liquefaction pretreatment, which pushes two piston plates to move towards one end far away from each other through an expansion plate, sucks residual natural gas in a separation box into a gas collecting frame, and seals a part, communicated with the gas collecting frame and the separation box, of a sealing strip, so that the situation of waste caused by loss of the residual natural gas is avoided.
The technical solution for realizing the purpose of the invention is as follows: the device comprises a base, wherein a driving motor is fixedly arranged in the base, a plurality of separation boxes are arranged at the top of the base, molecular sieves are arranged in the separation boxes, a heating module is further arranged in the separation boxes, and the device further comprises a replacement assembly, an air inlet assembly, a connection assembly and an air suction assembly;
the air suction assembly comprises an air collection frame made of heat insulation materials, the air collection frame is fixedly arranged on a side wall surface, close to a driving motor, of a separation box and is communicated with the inside of the separation box, two piston plates are connected to the inside of the air collection frame in a sliding mode, an expansion plate is connected to the bottom end of the air collection frame in a sliding mode, the top ends of the side walls of the expansion plate are triangular, expansion grooves mutually attached to the top ends of the expansion plate are formed in the bottom ends of the side wall surface, close to the piston plates, of the two piston plates, pushing grooves mutually aligned with the expansion plate are formed in the top wall surface of the base, one side wall surface of the inside of each pushing groove is inclined, sealing strips are fixedly arranged on the top wall surface of each expansion plate, a plurality of through holes are formed in the side wall surface of each sealing strip, and the parts, communicated with the inside of the air collection frame and the inside of the separation box are mutually aligned.
Preferably, the air suction assembly further comprises an extrusion spring fixedly mounted on the inner side wall of the air collection frame, and one end, far away from the inner side wall of the air collection frame, of the extrusion spring is fixedly connected with the side wall of the piston plate.
Preferably, the replacement assembly comprises a connecting frame fixedly installed on the output end of the driving motor, a pushing plate which is mutually aligned with the side wall of the connecting frame is fixedly installed on the side wall of the separation box, a guide groove which takes the output end of the driving motor as the center of a circle is formed in the top wall surface of the base, a sliding block which is in a T shape is slidingly connected in the guide groove, and the sliding block is fixedly installed on the bottom wall surface of the separation box.
Preferably, the air inlet assembly comprises a vent pipe, a connecting rod is fixedly arranged at the output end of the vent pipe, a Z-shaped vent groove is formed in the connecting rod, the connecting assembly comprises a bottom pipe communicated with the inside of the separation box, a top pipe is connected to the inside of the bottom pipe in a sliding mode, and a return spring is arranged at the bottom of the top pipe.
Preferably, the replacement assembly further comprises a sealing rod fixedly installed on the top wall surface of the connecting frame, the sealing rod is circular, a reinforcing rod is fixedly installed on the inner side wall of the sealing rod, and a communicating groove for wrapping the jacking pipe is formed in the bottom wall surface of the sealing rod.
Preferably, the bottom wall surface of the sealing rod and the side wall of the jacking pipe are provided with sealing grooves which are mutually attached, and the sealing grooves on the sealing rod are inclined in a way that the height of the sealing grooves is lower when the sealing grooves are closer to the pushing plate.
Preferably, the replacement assembly further comprises a reset spring fixedly mounted on the side wall of the pushing plate, and one end, far away from the pushing plate, of the reset spring is fixedly connected with the side wall of the connecting frame.
Preferably, the air inlet assembly further comprises a reset rod which is connected to the top of the connecting rod in a sliding mode, a sealing plate which is connected to the inside of the ventilation groove in a sliding mode is fixedly arranged on the wall surface of the bottom of the reset rod, the positions of the sealing plate and the top pipe are mutually aligned, and a contraction spring is sleeved on the side wall of the reset rod.
Preferably, the connecting assembly further comprises a limiting groove formed in the inner side wall of the bottom pipe, and the limiting rod fixedly mounted on the outer side wall of the top pipe is connected to the inside of the limiting groove in a sliding mode.
Preferably, the one end that the ventilation groove was kept away from to the top wall of connecting rod is offered and is run through the inside circular hole of connecting rod, the inside in circular hole is provided with the pressurization subassembly on the connecting rod, the pressurization subassembly is including the communicating pipe of fixed mounting on the connecting rod inside circular hole, the lateral wall top fixed mounting of communicating pipe has the extension frame, the inside wall fixed mounting of extension frame has the locating plate, the inside sliding connection of locating plate has the forcing lever, the lateral wall top cover of forcing lever has compression spring, the bottom ejector pin of forcing lever is equipped with the sealed pad of sliding connection inside communicating pipe.
Compared with the prior art, the invention has the beneficial effects that:
the method comprises the following steps: according to the invention, through the expansion of the two piston plates, the residual natural gas in the separation box is sucked into the gas collecting frame, and meanwhile, the sealing strip moves upwards along with the expansion plate, so that the part, communicated with the gas collecting frame and the separation box, is gradually sealed, and the waste caused by the loss of the residual natural gas is avoided; solves the problem of waste caused by the fact that the existing residual natural gas flows away along with water vapor.
And two,: according to the invention, the sealing rod rotates along with the connecting frame through the rotation of the output shaft of the driving motor, and the sealing groove on the sealing rod and the top pipe can push the top pipe to move downwards when the sealing rod rotates and seal the bottom end of the ventilation groove, so that the situation that more natural gas leaks outwards when the separation box is replaced is avoided.
And thirdly,: according to the invention, when the top pipe moves downwards along with the pushing of the sealing rod, the bottom of the sealing plate is not shielded, the sealing plate moves downwards again under the elastic pushing of the shrinkage spring, the bottom of the ventilation groove is sealed, and the bottom of the ventilation groove is doubly sealed through the sealing rod and the sealing plate, so that a natural gas main valve is not required to be closed when the separation box is replaced, and the replacement efficiency is improved.
Fourth, it is: when the separation box is heated, the air pressure in the separation box is increased, the temperature in the separation box is increased, water molecules in the molecular sieve are conveniently separated from the molecular sieve, the air pressure in the separation box is continuously increased, the sealing gasket is pushed to move upwards, a certain gap is formed between the sealing gasket and the communicating pipe, the air pressure is conveniently discharged, and the regeneration efficiency of the molecular sieve is improved and the safety is ensured.
Drawings
The invention is further explained below with reference to the drawings and examples:
FIG. 1 is a perspective view of a wet natural gas drying apparatus for the liquefaction pretreatment of natural gas in accordance with the present invention;
FIG. 2 is a schematic illustration of the slider position of the present invention;
FIG. 3 is an exploded view of the internal structure of the gas collecting frame of the present invention;
FIG. 4 is a schematic view of the structure of the base of the present invention;
FIG. 5 is a schematic view of the structure of the sealing rod of the present invention;
FIG. 6 is a schematic illustration of the attachment of the seal groove on the top tube and seal rod of the present invention;
FIG. 7 is a cross-sectional view of a connecting rod of the present invention;
fig. 8 is a schematic view of the vent channel shape of the present invention.
Reference numerals illustrate:
1. a base; 2. a driving motor; 3. a separation box; 4. replacing the assembly; 41. a connecting frame; 42. a sealing rod; 43. a pushing plate; 44. a return spring; 45. a communication groove; 46. a sliding block; 47. sealing grooves; 48. a reinforcing rod; 49. a guide groove; 5. a connection assembly; 51. a bottom tube; 52. jacking pipes; 53. a limit groove; 54. a limit rod; 55. a return spring; 6. an air intake assembly; 61. a connecting rod; 62. a vent pipe; 63. a vent groove; 64. a sealing plate; 65. a reset lever; 66. a retraction spring; 7. a suction assembly; 71. a gas collecting frame; 72. a piston plate; 73. extruding a spring; 74. an expansion slot; 75. an expansion board; 76. a sealing strip; 77. a pushing groove; 8. a pressurizing assembly; 81. a communicating pipe; 82. an expansion frame; 83. a positioning plate; 84. a sealing gasket; 85. a pressurizing rod; 86. and a pressurizing spring.
Detailed Description
The following detailed description of the present invention clearly and fully describes the technical solutions of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 8, a wet natural gas drying device for natural gas liquefaction pretreatment comprises a base 1, wherein a driving motor 2 is fixedly installed in the base 1, the output end of the driving motor 2 extends to the outside of the base 1, a plurality of separation boxes 3 are arranged at the top of the base 1, the number of the separation boxes 3 is 1-4, the number of the separation boxes 3 in each group is 2, a molecular sieve for drying natural gas is arranged in the separation boxes 3, a heating module for regenerating the molecular sieve is also arranged in the separation boxes 3, and the wet natural gas drying device further comprises a replacement component 4 for replacing the separation boxes 3, an air inlet component 6 for providing natural gas for the inside of the separation boxes 3, a connection component 5 for communicating the separation boxes 3 with the air inlet component 6, and an air suction component 7 for sucking residual natural gas in the inside of the separation boxes 3;
the replacement assembly 4 comprises a connecting frame 41 fixedly arranged on the output end of the driving motor 2, a pushing plate 43 which is mutually aligned with the side wall of the connecting frame 41 is fixedly arranged on the side wall of the separation box 3, a guide groove 49 taking the output end of the driving motor 2 as the center of a circle is formed in the top wall surface of the base 1, a sliding block 46 which is in a T shape is connected in the guide groove 49 in a sliding manner, and the sliding block 46 is fixedly arranged on the bottom wall surface of the separation box 3;
the air suction assembly 7 comprises an air collection frame 71 for storing natural gas, the air collection frame 71 is made of heat insulation materials, the air collection frame 71 is fixedly installed on a side wall surface, close to a driving motor 2, of a separation box 3, the air collection frame 71 is communicated with the inside of the separation box 3, two piston plates 72 are connected to the inside of the air collection frame 71 in a sliding mode, an expansion plate 75 is connected to the bottom end of the air collection frame 71 in a sliding mode, the top ends of the side walls of the expansion plate 75 are triangular, expansion grooves 74 which are mutually attached to the top ends of the expansion plate 75 are formed in the bottom ends of a side wall surface, close to the two piston plates 72, of the two piston plates, pushing grooves 77 which are mutually aligned with the expansion plate 75 are formed in the top wall surface of the base 1, one end, far away from the pushing plate 43, of the pushing groove 77 is inclined to be far away from the pushing plate 43, the top wall surface of the expansion plate 75 is fixedly provided with sealing strips 76, a plurality of through holes are formed in the side walls of the sealing strips 76, and the parts, which are communicated with the inside of the air collection frame 71 and the inside of the separation box 3, are mutually aligned.
The output end of the driving motor 2 drives the connecting frame 41 to rotate, the connecting frame 41 is attached to the side wall of the pushing plate 43, the separation boxes 3 are pushed to rotate along the inside of the guide groove 49, the positions of the separation boxes 3 at the top of the base 1 are switched to be sequentially communicated with the inside of the air inlet component 6, because one side wall of the pushing plate 43 far away from the pushing groove 77 is inclined, when the separation boxes 3 rotate, the expansion plate 75 moves upwards under the guidance of the inner side wall of the pushing groove 77, the top ends of the expansion plate 75 push the two piston plates 72 to move towards the far away end, the two piston plates 72 expand, residual natural gas in the separation boxes 3 is sucked into the gas collecting frame 71, and meanwhile the sealing strips 76 move upwards along with the expansion plate 75, gradually seal the communicated parts of the gas collecting frame 71 and the separation boxes 3, and avoid the waste caused by the loss of the residual natural gas.
In order to facilitate the natural gas in the gas collecting frame 71 to flow back into the separating box 3, the air suction assembly 7 further comprises a compression spring 73 fixedly mounted on the inner side wall of the gas collecting frame 71, and one end, far away from the inner side wall of the gas collecting frame 71, of the compression spring 73 is fixedly connected with the side wall of the piston plate 72.
When the molecular sieve inside the separation tank 3 is regenerated, the bottom end of the expansion plate 75 returns to the inside of the pushing groove 77 along with the rotation of the separation tank 3, the elasticity of the compression spring 73 pushes the piston plates 72 to restore the original position, so that the natural gas between the two piston plates 72 is returned to the inside of the separation tank 3 through the communicating part of the gas collecting frame 71 and the separation tank 3.
In order to conveniently convey natural gas to the inside of the separation tank 3, the air inlet assembly 6 comprises a vent pipe 62 for conveying natural gas, a connecting rod 61 is fixedly arranged at the output end of the vent pipe 62, a Z-shaped vent groove 63 is formed in the connecting rod 61, the connecting assembly 5 comprises a bottom pipe 51 communicated with the inside of the separation tank 3, a top pipe 52 is slidably connected to the inside of the bottom pipe 51, and a return spring 55 is arranged at the bottom of the top pipe 52.
By pushing the top pipe 52 upward by the elasticity of the return spring 55, the top end of the top pipe 52 extends into the ventilation groove 63, so that the natural gas output from the ventilation pipe 62 can enter the separation tank 3 through the connection assembly 5, and the separation tank 3 performs drying treatment on the natural gas.
In order to ensure the tightness of the bottoms of the ventilation grooves 63 between the plurality of separation boxes 3, the replacement assembly 4 further comprises a sealing rod 42 fixedly installed on the top wall surface of the connecting frame 41, the sealing rod 42 is circular, a reinforcing rod 48 for reinforcing the sealing rod 42 is fixedly installed on the inner side wall of the sealing rod 42, a communicating groove 45 for wrapping the jacking pipe 52 is formed in the bottom wall surface of the sealing rod 42, sealing grooves 47 which are mutually attached are formed in the bottom wall surface of the sealing rod 42 and the side wall of the jacking pipe 52, and the sealing grooves 47 on the sealing rod 42 are inclined to be lower when being closer to the pushing plate 43.
Through the output shaft rotation of driving motor 2, make sealing rod 42 rotate along with link 41, through seal groove 47 on sealing rod 42 and the push pipe 52, can promote push pipe 52 downwardly moving when making sealing rod 42 rotate to with the bottom seal of ventilation groove 63, avoid when changing separator 3, the condition that the natural gas outwards leaks more takes place.
In order to further reduce the natural gas leakage during replacement of the separator tank 3, the replacement assembly 4 further comprises a return spring 44 fixedly mounted on the side wall of the push plate 43, wherein the end of the return spring 44 remote from the push plate 43 is fixedly connected to the side wall of the connecting frame 41.
By using the return spring 44 to make a gap between the connecting frame 41 and the pushing plate 43, when the sealing rod 42 rotates along with the output end of the driving motor 2, the sealing rod 42 can push the top pipe 52 to move downwards, so that the sealing rod 42 seals the bottom end of the ventilation slot 63, when the return spring 44 is compressed to the extreme, the connecting frame 41 can push the separation box 3 to move, when the replaced separation box 3 moves to a preset position, the driving motor 2 stops working, the elasticity of the return spring 44 can push the connecting frame 41 to rotate around the output end of the driving motor 2, so that the sealing rod 42 opens the bottom of the ventilation slot 63, and the top end of the top pipe 52 conveniently stretches into the inside of the ventilation slot 63.
The normal ac servo is such that there is no holding torque, so that after the drive motor 2 stops rotating, if the load has a reverse torque to the output shaft of the drive motor 2, the drive motor 2 must rotate accordingly.
In order to ensure the tightness of the inside of the ventilation groove 63, the air inlet assembly 6 further comprises a reset rod 65 slidably connected to the top of the connecting rod 61, a sealing plate 64 slidably connected to the inside of the ventilation groove 63 is fixedly installed on the bottom wall surface of the reset rod 65, the positions of the sealing plate 64 and the jacking pipe 52 are mutually aligned, and a contraction spring 66 is sleeved on the side wall of the reset rod 65.
When the push pipe 52 moves downwards along with the pushing of the sealing rod 42, the bottom of the sealing plate 64 is not shielded, the sealing plate 64 moves downwards under the elastic pushing of the contraction spring 66, the bottom of the ventilation groove 63 is sealed, and the bottom of the ventilation groove 63 is doubly sealed through the sealing rod 42 and the sealing plate 64, so that when the separation box 3 is replaced, a natural gas main valve is not required to be closed, and the replacement efficiency is improved.
In order to ensure the stable position of the jacking pipe 52, the connecting assembly 5 further comprises a limiting groove 53 formed on the inner side wall of the bottom pipe 51, and a limiting rod 54 fixedly mounted on the outer side wall of the jacking pipe 52 is slidably connected inside the limiting groove 53.
The sliding range of the jacking pipe 52 is limited through the mutual matching of the limiting groove 53 and the limiting rod 54, so that the condition that the jacking pipe 52 cannot be well attached to the sealing groove 47 on the sealing rod 42 due to the fact that the jacking pipe 52 rotates when the sealing rod 42 pushes the jacking pipe 52 to move downwards is avoided.
In order to improve the regeneration efficiency of the molecular sieve in the separation tank 3, the top wall surface of the connecting rod 61 is far away from one end of the ventilation groove 63 and is provided with a circular hole penetrating through the inside of the connecting rod 61, the inside of the circular hole on the connecting rod 61 is provided with a pressurizing assembly 8, the pressurizing assembly 8 comprises a communicating pipe 81 fixedly installed in the inside of the circular hole on the connecting rod 61, an expansion frame 82 is fixedly installed at the top end of the outer side wall of the communicating pipe 81, a positioning plate 83 is fixedly installed on the inner side wall of the expansion frame 82, a pressurizing rod 85 is slidably connected in the positioning plate 83, a pressurizing spring 86 is sleeved at the top end of the side wall of the pressurizing rod 85, and a bottom ejector rod of the pressurizing rod 85 is provided with a sealing pad 84 slidably connected in the communicating pipe 81.
Through the rotation of the output shaft of driving motor 2, the separator tank 3 that will handle is pushed to the bottom of communicating pipe 81, the inside molecular sieve of separator tank 3 is heated through the inside heating module of separator tank 3, and return spring 55 promotes the inside of circular hole on connecting rod 61 with push pipe 52, make the inside of separator tank 3 and the inside intercommunication of communicating pipe 81, sealed pad 84 seals the inside of push pipe 52, make the inside of separator tank 3 be in under the sealed condition, when making the heat to separator tank 3, improve the inside atmospheric pressure of separator tank 3, improve the inside temperature of separator tank 3, make things convenient for the separation of hydrone and molecular sieve in the molecular sieve, the inside atmospheric pressure of separator tank 3 continuously rises and can promote sealed pad 84 upward movement, make there is certain space between sealed pad 84 and the communicating pipe 81, make things convenient for the atmospheric pressure to discharge, guarantee the security when improving the regeneration efficiency of molecular sieve.
Working principle: the output end of the driving motor 2 drives the connecting frame 41 to rotate, the connecting frame 41 is attached to the side wall of the pushing plate 43, the separation boxes 3 are pushed to rotate along the inside of the guide groove 49, the positions of the separation boxes 3 at the top of the base 1 are switched to be sequentially communicated with the inside of the air inlet component 6, because one side wall of the pushing plate 43 far away from the pushing groove 77 is inclined, when the separation boxes 3 rotate, the expansion plate 75 moves upwards under the guidance of the inner side wall of the pushing groove 77, the top ends of the expansion plate 75 push the two piston plates 72 to move towards the far away end, the two piston plates 72 expand, residual natural gas in the separation boxes 3 is sucked into the gas collecting frame 71, and meanwhile the sealing strips 76 move upwards along with the expansion plate 75, gradually seal the communicated parts of the gas collecting frame 71 and the separation boxes 3, and avoid the waste caused by the loss of the residual natural gas.
When the molecular sieve inside the separation tank 3 is regenerated, the bottom end of the expansion plate 75 returns to the inside of the pushing groove 77 along with the rotation of the separation tank 3, the elasticity of the compression spring 73 pushes the piston plates 72 to restore the original position, so that the natural gas between the two piston plates 72 is returned to the inside of the separation tank 3 through the communicating part of the gas collecting frame 71 and the separation tank 3.
Through the output shaft rotation of driving motor 2, make sealing rod 42 rotate along with link 41, through seal groove 47 on sealing rod 42 and the push pipe 52, can promote push pipe 52 downwardly moving when making sealing rod 42 rotate to with the bottom seal of ventilation groove 63, avoid when changing separator 3, the condition that the natural gas outwards leaks more takes place.
When the push pipe 52 moves downwards along with the pushing of the sealing rod 42, the bottom of the sealing plate 64 is not shielded, the sealing plate 64 moves downwards again under the elastic pushing of the contraction spring 66, the bottom of the ventilation groove 63 is sealed, and the bottom of the ventilation groove 63 is doubly sealed through the sealing rod 42 and the sealing plate 64, so that when the separation box 3 is replaced, a natural gas main valve is not required to be closed, and the replacement efficiency is improved.
The separation tank 3 needing to be processed is pushed to the bottom end of the communicating pipe 81 through the rotation of the output shaft of the driving motor 2, the molecular sieve in the separation tank 3 is heated through the heating module in the separation tank 3, the return spring 55 pushes the jacking pipe 52 to the inside of the circular hole on the connecting rod 61, the inside of the separation tank 3 is communicated with the inside of the communicating pipe 81, the sealing pad 84 seals the inside of the jacking pipe 52, the inside of the separation tank 3 is in a sealing state, therefore, when the separation tank 3 is heated, the air pressure in the separation tank 3 is improved, the temperature in the separation tank 3 is improved, water molecules in the molecular sieve are separated from the molecular sieve conveniently, the air pressure in the separation tank 3 is continuously increased to push the sealing pad 84 to move upwards, a certain gap is formed between the sealing pad 84 and the communicating pipe 81, the air pressure is conveniently discharged, and the safety is ensured while the regeneration efficiency of the molecular sieve is improved.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the technical means, and also comprises the technical scheme consisting of the technical characteristics and the equivalent substitution. The present invention is not limited to the prior art.
Claims (4)
1. The utility model provides a wet natural gas drying equipment that natural gas liquefaction preliminary treatment was used, includes base (1), and the inside fixed mounting of base (1) has driving motor (2), and the top of base (1) is provided with a plurality of separator boxes (3), and the inside of separator box (3) is provided with molecular sieve, and the inside of separator box (3) still is provided with heating module, its characterized in that: the device also comprises a replacement component (4), an air inlet component (6), a connecting component (5) and an air suction component (7);
the air suction assembly (7) comprises an air collection frame (71), the air collection frame (71) is made of heat insulation materials, the air collection frame (71) is fixedly installed on one side wall surface of a separation box (3) close to a driving motor (2), the air collection frame (71) is communicated with the inside of the separation box (3), two piston plates (72) are connected with the inside of the air collection frame (71) in a sliding mode, an expansion plate (75) is connected with the bottom end of the air collection frame (71) in a sliding mode, the top ends of the side walls of the expansion plate (75) are triangular, expansion grooves (74) mutually attached to the top ends of the expansion plate (75) are formed in the bottom end of one side wall surface, close to the piston plates (72), of the base (1) are provided with pushing grooves (77) mutually aligned with the top wall surface of the expansion plate (75), the top wall surface of the expansion plate (75) is fixedly installed with two piston plates (76), the side walls of the expansion plates (76) are fixedly installed on the side walls of the expansion plate (76), the inner side walls of the expansion plate (75) are further provided with through holes (76) mutually aligned with the top ends of the sealing strips (75), the sealing strips (71) are fixedly installed on the inner side walls of the sealing strips (3), one end of the extrusion spring (73) far away from the inner side wall of the gas collecting frame (71) is fixedly connected with the side wall of the piston plate (72), the replacement component (4) comprises a connecting frame (41) fixedly installed on the output end of the driving motor (2), a pushing plate (43) which is mutually aligned with the side wall of the connecting frame (41) is fixedly installed on the side wall of the separation box (3), a guide groove (49) which takes the output end of the driving motor (2) as the center of a circle is formed in the top wall surface of the base (1), a sliding block (46) which is in a T shape is connected in a sliding mode in the guide groove (49), the sliding block (46) is fixedly installed on the bottom wall surface of the separation box (3), the air inlet component (6) comprises an air pipe (62), a connecting rod (61) is fixedly installed at the output end of the air pipe (62), a ventilation groove (63) which is in a Z shape is formed in the inner portion of the connecting rod (61), a bottom pipe (51) which is mutually communicated with the inner portion of the separation box (3), a top pipe (52) which is in a sealing mode, the bottom pipe (52) is fixedly installed on the bottom wall (52) of the separation box (3), the sealing rod (42) is circular, reinforcing rods (48) are fixedly arranged on the inner side walls of the sealing rod (42), communication grooves (45) for wrapping the jacking pipes (52) are formed in the bottom wall surface of the sealing rod (42), sealing grooves (47) which are mutually attached are formed in the bottom wall surface of the sealing rod (42) and the side walls of the jacking pipes (52), the sealing grooves (47) on the sealing rod (42) are inclined to be lower closer to the pushing plate (43), the air inlet assembly (6) further comprises reset rods (65) which are slidably connected to the tops of the connecting rods (61), sealing plates (64) which are slidably connected to the bottoms of the ventilating grooves (63) are fixedly arranged on the bottom wall surface of the reset rods (65), the positions of the sealing plates (64) and the positions of the jacking pipes (52) are mutually aligned, and contraction springs (66) are sleeved on the side walls of the reset rods (65).
2. Wet natural gas drying apparatus for the liquefaction pretreatment of natural gas according to claim 1, characterized in that: the replacement assembly (4) further comprises a reset spring (44) fixedly arranged on the side wall of the pushing plate (43), and one end, away from the pushing plate (43), of the reset spring (44) is fixedly connected with the side wall of the connecting frame (41).
3. Wet natural gas drying apparatus for the liquefaction pretreatment of natural gas according to claim 1, characterized in that: the connecting assembly (5) further comprises a limiting groove (53) formed in the inner side wall of the bottom pipe (51), and a limiting rod (54) fixedly mounted on the outer side wall of the top pipe (52) is connected inside the limiting groove (53) in a sliding mode.
4. Wet natural gas drying apparatus for the liquefaction pretreatment of natural gas according to claim 1, characterized in that: the utility model discloses a connecting rod, including connecting rod (61), connecting rod (85) and sealing pad (84) of connecting rod (81), the inside circular hole that runs through connecting rod (61) is seted up to the one end that ventilating slot (63) was kept away from to the top wall of connecting rod (61), the inside in circular hole is provided with pressurization subassembly (8) on connecting rod (61), pressurization subassembly (8) are including fixed mounting communicating pipe (81) in circular hole inside on connecting rod (61), the lateral wall top fixed mounting of communicating pipe (81) has expansion frame (82), the inside wall fixed mounting of expansion frame (82) has locating plate (83), the inside sliding connection of locating plate (83) has pressurization pole (85), the lateral wall top cover of pressurization pole (85) has pressurization spring (86), the bottom ejector pin of pressurization pole (85) is equipped with sealing pad (84) of sliding connection inside communicating pipe (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311650642.1A CN117363391B (en) | 2023-12-05 | 2023-12-05 | Wet natural gas drying equipment for natural gas liquefaction pretreatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311650642.1A CN117363391B (en) | 2023-12-05 | 2023-12-05 | Wet natural gas drying equipment for natural gas liquefaction pretreatment |
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| CN117363391A CN117363391A (en) | 2024-01-09 |
| CN117363391B true CN117363391B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311650642.1A Active CN117363391B (en) | 2023-12-05 | 2023-12-05 | Wet natural gas drying equipment for natural gas liquefaction pretreatment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609229A (en) * | 2019-01-29 | 2019-04-12 | 郑州新领豫智能科技有限公司 | Gas-liquid separation device is used in a kind of production of natural gas |
| CA2996926A1 (en) * | 2018-02-28 | 2019-08-28 | Chevron U.S.A. Inc. | Systems and methods for short loop regeneration of gas dehydration units |
| CN115008417A (en) * | 2022-07-25 | 2022-09-06 | 烟台华港能源科技有限公司 | Gas pipe connection end sealing washer extrusion mounting equipment |
| CN115350570A (en) * | 2022-10-20 | 2022-11-18 | 河北宏科庆能环保设备有限公司 | Wet natural gas drying equipment for natural gas liquefaction pretreatment |
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2023
- 2023-12-05 CN CN202311650642.1A patent/CN117363391B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2996926A1 (en) * | 2018-02-28 | 2019-08-28 | Chevron U.S.A. Inc. | Systems and methods for short loop regeneration of gas dehydration units |
| CN109609229A (en) * | 2019-01-29 | 2019-04-12 | 郑州新领豫智能科技有限公司 | Gas-liquid separation device is used in a kind of production of natural gas |
| CN115008417A (en) * | 2022-07-25 | 2022-09-06 | 烟台华港能源科技有限公司 | Gas pipe connection end sealing washer extrusion mounting equipment |
| CN115350570A (en) * | 2022-10-20 | 2022-11-18 | 河北宏科庆能环保设备有限公司 | Wet natural gas drying equipment for natural gas liquefaction pretreatment |
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| CN117363391A (en) | 2024-01-09 |
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