CN114508898B - Cold box precooling equipment for liquefying natural gas for chemical industry - Google Patents
Cold box precooling equipment for liquefying natural gas for chemical industry Download PDFInfo
- Publication number
- CN114508898B CN114508898B CN202210097772.6A CN202210097772A CN114508898B CN 114508898 B CN114508898 B CN 114508898B CN 202210097772 A CN202210097772 A CN 202210097772A CN 114508898 B CN114508898 B CN 114508898B
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- Prior art keywords
- fixedly connected
- pipeline
- pipe
- cold box
- box
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000003345 natural gas Substances 0.000 title claims abstract description 17
- 239000000126 substance Substances 0.000 title claims abstract description 14
- 239000000428 dust Substances 0.000 claims abstract description 49
- 238000001816 cooling Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 description 9
- 239000003949 liquefied natural gas Substances 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/62—Liquefied natural gas [LNG]; Natural gas liquids [NGL]; Liquefied petroleum gas [LPG]
Abstract
The invention relates to precooling equipment, in particular to cold box precooling equipment for liquefying natural gas in chemical industry. The technical problems are as follows: the cold box precooling equipment for liquefying the natural gas for chemical industry, which does not affect the environment, is provided. The cold box precooling equipment for liquefying natural gas for chemical industry comprises a cold box and an air inlet pipe, wherein the air inlet pipe is fixedly connected to the lower part of one side of the cold box; the mounting seat is fixedly connected to one side of the inner wall of the cold box, and the air inlet pipe is fixedly connected with the mounting seat; and the compressor is arranged on the mounting seat. The filtering mechanism can filter air, so that dust in the air is prevented from entering the compressor, the compressor can cool the air, the heat exchange mechanism can cool the air, and therefore the environment in the cold box is refrigerated, the water cooling mechanism can cool redundant hot air, the redundant hot air is prevented from being directly discharged to the outside, and the influence on the environment is avoided.
Description
Technical Field
The invention relates to precooling equipment, in particular to cold box precooling equipment for liquefying natural gas in chemical industry.
Background
Natural gas is natural gas in nature, has characteristics such as colorless, tasteless, nontoxic, in the chemical industry field, often can use the liquefied natural gas cooler to carry out heat exchange to natural gas and cryogen, present liquefied natural gas cooler can produce some unnecessary steam in the cooling process, but present liquefied natural gas cooler does not collect unnecessary steam's function, and unnecessary steam directly discharges external world to cause certain pollution to the environment.
Aiming at the existing problems, a device which does not influence the environment is designed.
Disclosure of Invention
In order to overcome the defect that the existing liquefied natural gas cooling box has no function of collecting redundant hot gas, and the redundant hot gas is directly discharged outside, thereby causing certain pollution to the environment, the technical problem is as follows: the cold box precooling equipment for liquefying the natural gas for chemical industry, which does not affect the environment, is provided.
The technical proposal is as follows: the utility model provides a cold box precooling equipment of natural gas liquefaction for chemical industry, includes:
the air inlet pipe is fixedly connected to the lower part of one side of the cold box;
the mounting seat is fixedly connected to one side of the inner wall of the cold box, and the air inlet pipe is fixedly connected with the mounting seat;
the compressor is arranged on the mounting seat;
the first pipeline is fixedly connected to the compressor;
the filtering mechanism is arranged on one side, close to the air inlet pipe, of the cold box;
the heat exchange mechanism is arranged on the first pipeline;
the number of the first exhaust pipes is two, the two first exhaust pipes are fixedly connected to one side, far away from the air inlet pipe, of the cold box, and the first exhaust pipes are connected with the heat exchange mechanism;
and the water cooling mechanism is arranged on one side, close to the first exhaust pipe, of the cold box.
Further, the filtering mechanism comprises:
the at least two fixing frames are fixedly connected to one side, close to the air inlet pipe, of the cold box;
the outer protection frame is fixedly connected between the fixing frames;
the first springs are fixedly connected to the two sides of the inner part of the outer protective frame;
the mounting plate is fixedly connected between the first springs;
the filter cartridges are at least two and are embedded on the mounting plate;
the second springs are fixedly connected to the two sides of the inner bottom of the outer protection frame;
the movable plate is fixedly connected between the second springs;
the telescopic pipes are fixedly connected to the lower sides of the filter cylinders and penetrate through the movable plates;
the upper part of the telescopic pipe is provided with a third spring, and two ends of the third spring are respectively connected with the filter cylinder and the movable plate;
communicating pipes are fixedly connected between the telescopic pipes, and are fixedly connected with the air inlet pipe.
Further, the heat exchange mechanism comprises:
a liquid container mounted on an upper side of the cold box;
a circulation pump mounted on an upper side of the liquid container;
the second pipelines are at least two and are respectively arranged at two sides of the liquid container, and the second pipelines penetrate through the cold box;
the lower ends of the second pipelines are fixedly connected with gas tanks, the gas tanks are fixedly connected with the first pipelines, and the gas tanks are fixedly connected with the first exhaust pipes;
the heat exchange pipes are arranged in the gas tanks and fixedly connected with the second pipeline;
the circulating pipe is arranged between the heat exchange pipes and penetrates through the gas tank.
Further, the water cooling mechanism includes:
the base is fixedly connected to one side, close to the first exhaust pipe, of the cold box;
the cooling box is arranged on the upper side of the base, and the first exhaust pipe is fixedly connected with the cooling box;
the second exhaust pipe is fixedly connected to one side of the cooling box;
the spray pipe is fixedly connected to one side, close to the second exhaust pipe, of the cooling box;
the first bracket is fixedly connected to the inner wall of the cooling box;
the heat dissipation motor is arranged on the first bracket;
the first fan blade is arranged on the output shaft of the heat dissipation motor.
Further, still include refrigeration mechanism, refrigeration mechanism is including:
a pressure vessel installed outside the circulation pipe;
the third pipeline is fixedly connected to one side of the pressure container;
the condensing pipeline is fixedly connected to one side of the third pipeline and fixedly connected with the pressure vessel;
the fourth pipeline is fixedly connected to the upper part of the third pipeline;
the liquid nitrogen container is fixedly connected to one side of the fourth pipeline;
the refrigerating pipeline is fixedly connected to the upper end of the third pipeline;
the first fixed block is arranged in the third pipeline;
the pushing block is arranged in the middle of the first fixed block in a sliding mode, and is matched with the third pipeline;
the fourth spring is fixedly connected in the third pipeline;
the blocking piece is fixedly connected to the lower end of the fourth spring, and the blocking piece is matched with the fourth pipeline.
Further, still including rocking mechanism, rocking mechanism is including:
the collecting box is fixedly connected to one side of the outer protective frame;
the second bracket is fixedly connected to the inner wall of the collecting box;
the dust removing motor is arranged in the second bracket, and an output shaft of the dust removing motor penetrates through the collecting box;
the upper part of the inner wall of the outer protective frame is also provided with an inductor, and the inductor is electrically connected with the dust removal motor;
the at least two mounting frames are fixedly connected to the upper part of the inner wall of the outer protection frame, and the filter cylinder penetrates through the mounting frames;
the outer sides of the mounting frames are provided with at least three elastic blocks in a sliding mode;
the spring blocks are respectively arranged on the mounting frame, and two ends of each spring block are respectively connected with the spring blocks and the mounting frame;
the disc is fixedly connected to an output shaft of the dust removal motor;
the connecting rod is rotatably connected to the lower side of the disc, and the connecting rod is rotatably connected with the movable plate.
Further, still including dust removal mechanism, dust removal mechanism is including:
connecting pipes are fixedly connected to one sides of the filter cylinders, and penetrate through the collecting boxes;
the communication block is fixedly connected between the connecting pipes, and the second bracket is positioned in the communication block;
the second fixing block is fixedly connected to one side, close to the collecting box, of the outer protection frame, and an output shaft of the dust removal motor penetrates through the second fixing block;
the filter screen is fixedly connected to the upper side of the second fixed block;
the second fan blade is fixedly connected to the output shaft of the dust removal motor and is positioned in the second fixing block.
Further, through holes for ventilation are uniformly formed in the first fixed block at intervals.
The beneficial effects of the invention are as follows:
1. the filtering mechanism can filter air, so that dust in the air is prevented from entering the compressor, the compressor can cool the air, the heat exchange mechanism can cool the air, and therefore the environment in the cold box is refrigerated, the water cooling mechanism can cool redundant hot air, the redundant hot air is prevented from being directly discharged to the outside, and the influence on the environment is avoided.
2. The refrigerating mechanism can perform secondary refrigeration on the environment in the cold box, so that the environment in the cold box is always kept in a cold state.
3. According to the invention, under the cooperation of the shaking mechanism and the dust removing mechanism, dust entering the filter cylinder can be collected, so that excessive dust accumulated in the filter cylinder is avoided, and the filter cylinder is prevented from being blocked.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial cross-sectional view of the present invention.
Fig. 3 is a cross-sectional view of the filter mechanism and dust removal mechanism of the present invention.
Fig. 4 is a cross-sectional view of a first portion of the wobble mechanism of the invention.
Fig. 5 is a cross-sectional view of a second portion of the wobble mechanism of the invention.
Fig. 6 is a cross-sectional view of a third portion of the wobble mechanism of the invention.
Fig. 7 is a schematic perspective view of a first part of the dust removing mechanism of the present invention.
Fig. 8 is a schematic perspective view of a second part of the dust removing mechanism of the present invention.
Fig. 9 is a cross-sectional view of the heat exchange mechanism of the present invention.
Fig. 10 is a schematic perspective view of a refrigeration mechanism according to the present invention.
Fig. 11 is a cross-sectional view of a first portion of the refrigeration mechanism of the present invention.
Fig. 12 is a cross-sectional view of a second portion of the refrigeration mechanism of the present invention.
Fig. 13 is a cross-sectional view of a third portion of the refrigeration mechanism of the present invention.
Fig. 14 is a schematic perspective view of a water cooling mechanism according to the present invention.
FIG. 15 is a schematic view of a part of a water cooling mechanism according to the present invention.
Part names and serial numbers in the figure: 1_cold box, 2_intake pipe, 3_mount, 4_compressor, 5_first pipe, 6_filter mechanism, 61_mount, 62_outer protective frame, 63_mounting plate, 64_first spring, 65_filter cartridge, 66_fly leaf, 67_second spring, 68_third spring, 69_bellows, 610_communication pipe, 7_heat exchange mechanism, 71_liquid container, 72_circulation pump, 73_second pipe, 74_gas tank, 75_heat exchange pipe, 76_circulation pipe, 8_first exhaust pipe, 9_refrigeration mechanism, 91_pressure vessel, 92_third pipe, 93_condensation pipe, 94_liquid nitrogen vessel, 95_fourth pipe, 96_refrigeration pipe, 97_first fixed block, 98_push block, 99_fourth spring, 910_block, 10_water cooling mechanism, 1001_base, 1002_cooling tank, 1003_second exhaust pipe, 1004_shower pipe, 1005_first bracket, 1006_heat dissipation motor, 1007_first fan blade, 11_shake mechanism, 1101_collecting tank, 1102_second bracket, 1103_dust removal motor, 1104_sensor, 1105_mounting bracket, 1106_spring, 1107_fifth spring, 1108_disc, 1109_connecting rod, 12_dust removal mechanism, 1201_connecting pipe, 1202_communicating block, 1203_second fixed block, 1204_filter screen, 1205_second fan blade.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings.
Example 1
The utility model provides a cold box precooling equipment of natural gas liquefaction for chemical industry, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 9, fig. 14 and fig. 15, including cold box 1, intake pipe 2, mount pad 3, compressor 4, first pipeline 5, filtering mechanism 6, heat exchange mechanism 7, first blast pipe 8 and water cooling mechanism 10, cold box 1 left side lower part is connected with intake pipe 2, cold box 1 interior left side is connected with mount pad 3, intake pipe 2 and mount pad 3 bottom are connected, mount pad 3 right side is connected with compressor 4, compressor 4 right side is connected with first pipeline 5, cold box 1 left side lower part is equipped with filtering mechanism 6, be equipped with heat exchange mechanism 7 on the first pipeline 5, the front and back both sides on cold box 1 right side upper portion all are connected with first blast pipe 8, two first blast pipes 8 all are connected with heat exchange mechanism 7, cold box 1 right side is equipped with water cooling mechanism 10.
The filtering mechanism 6 comprises a fixing frame 61, an outer protection frame 62, a mounting plate 63, a first spring 64, a filter cartridge 65, a movable plate 66, a second spring 67, a third spring 68, telescopic pipes 69 and communicating pipes 610, wherein the front side and the rear side of the left side of the cold box 1 are respectively connected with the fixing frame 61, the outer protection frame 62 is connected between the two fixing frames 61, the front side and the rear side of the upper right side in the outer protection frame 62 are respectively connected with the first spring 64, the mounting plate 63 is connected between the two first springs 64, the two filter cartridges 65 are embedded in the mounting plate 63, the front side and the rear side of the inner bottom of the outer protection frame 62 are respectively connected with the two second springs 67, the movable plate 66 is connected between the top ends of the four second springs 67, the bottoms of the two filter cartridges 65 are respectively connected with the telescopic pipes 69, the upper parts of the two telescopic pipes 69 are respectively provided with the third springs 68, the two ends of the third springs 68 are respectively connected with the filter cartridge 65 and the movable plate 66, the communicating pipes 610 are connected with the air inlet pipe 2.
The heat exchange mechanism 7 comprises a liquid container 71, a circulating pump 72, a second pipeline 73, air tanks 74, heat exchange pipes 75 and a circulating pipe 76, wherein the liquid container 71 is connected in the middle of the top of the cold box 1, the circulating pump 72 is mounted on the top of the liquid container 71 through bolts, the second pipelines 73 are connected to the front side and the rear side of the liquid container 71, the two second pipelines 73 penetrate through the top of the cold box 1, the air tanks 74 are connected to the bottom ends of the two second pipelines 73, the two air tanks 74 are connected with the first pipelines 5, the two air tanks 74 are connected with the two first exhaust pipes 8 respectively, the heat exchange pipes 75 are mounted in the two air tanks 74, the two heat exchange pipes 75 are connected with the two second pipelines 73 respectively, the circulating pipe 76 is connected between the two heat exchange pipes 75, and the circulating pipe 76 penetrates through the bottom of the air tanks 74.
The water cooling mechanism 10 comprises a base 1001, a cooling box 1002, a second exhaust pipe 1003, spray pipes 1004, first supports 1005, a heat dissipation motor 1006 and first fan blades 1007, wherein the right side of the cooling box 1 is connected with the base 1001, the top of the base 1001 is connected with the cooling box 1002, the right ends of the two first exhaust pipes 8 are connected with the left side of the cooling box 1002, the lower right side of the cooling box 1002 is connected with the second exhaust pipe 1003, the upper right side of the cooling box 1002 is connected with the spray pipes 1004, the upper inner part of the cooling box 1002 is connected with the first supports 1005, the heat dissipation motor 1006 is arranged in the middle of the first supports 1005, and the output shaft of the heat dissipation motor 1006 is connected with the first fan blades 1007.
People pass natural gas pipelines through the cold box 1, the liquid container 71, the second pipeline 73, the heat exchange tube 75 and the circulating tube 76 are all provided with cooling liquid, people start the compressor 4, external air enters the filter cartridge 65, the filter cartridge 65 filters dust in the air, dust in the air is prevented from entering the compressor 4, the filtered air flows into the air inlet pipe 2 through the telescopic tube 69, then the air flows into the compressor 4 through the mounting seat 3, the compressor 4 cools the air, thereby the environment in the cold box 1 is refrigerated, the air flows into the air tank 74 through the first pipeline 5, at the moment, people start the circulating pump 72, the cooling liquid flows back and forth in the liquid container 71, the second pipeline 73, the heat exchange tube 75 and the circulating tube 76, air in the air tank 74 is cooled, thereby the environment in the cold box 1 is refrigerated, redundant hot air is discharged through the first exhaust tube 8, the cooling box 1002 is discharged, people externally connect a water source 1004, the water is sprayed into the cooling box 1002 for cooling, then the motor 1006 is started, the motor 1006 drives the first air to cool the air, the fan blade 1003 for cooling, the environment in the air is refrigerated, the air is cooled down through the first pipeline 1003, the air is directly discharged through the second exhaust tube 73, the air pump 67 is prevented from being directly cooled, the air is prevented from being blown out of the filter cartridge 65, the air pump is prevented from being directly to be more influenced by the external air pump 65, the air is cooled, the air is not required to be cooled, and the air is cooled by the air pump 65, and the air is directly is cooled, and the air is cooled by the air pump 65, and the air is cooled, and the air is 65, and the air is not required to be cooled, and the air is cooled.
Example 2
On the basis of embodiment 1, as shown in fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 10, fig. 11, fig. 12 and fig. 13, the air conditioner further comprises a refrigerating mechanism 9, wherein the refrigerating mechanism 9 comprises a pressure vessel 91, a third pipeline 92, a condensing pipeline 93, a liquid nitrogen vessel 94, a fourth pipeline 95, a refrigerating pipeline 96, a first fixing block 97, a push block 98, a fourth spring 99 and a blocking block 910, the pressure vessel 91 is installed outside the circulating pipe 76, the middle part of the right side of the pressure vessel 91 is connected with the third pipeline 92, the left side of the third pipeline 92 is connected with the condensing pipeline 93, the bottom end of the condensing pipeline 93 is connected with the top of the pressure vessel 91, the upper part of the third pipeline 92 is connected with the fourth pipeline 95, the top end of the third pipeline 92 is connected with the refrigerating pipeline 96, the left end of the fourth pipeline 95 is connected with the liquid nitrogen vessel 94, the first fixing block 97 is arranged in the third pipeline 92, through holes for ventilation are evenly spaced on the first fixing block 97, the middle part of the first fixing block 97 is slidably provided with the push block 98, the push block 98 is matched with the third pipeline 92, the fourth pipeline 92 is matched with the fourth spring 910, and the fourth pipeline 99 is matched with the fourth spring 910, and the bottom end of the fourth pipeline 99 is connected with the fourth pipeline 95.
The pure water is filled in the pressure container 91, the pure water in the pressure container 91 has certain pressure, the boiling point of the pure water in the pressure container 91 is very low, the pure water in the pressure container 91 is easy to boil, cooling liquid generates certain heat when flowing back and forth in the liquid container 71, the second pipeline 73, the heat exchange pipe 75 and the circulating pipe 76, the pure water in the pressure container 91 boils to generate water vapor, the water vapor enters the third pipeline 92, the water vapor pushes the push block 98 to move upwards through the through hole on the first fixing block 97, when the push block 98 moves into the fourth pipeline 95, the water vapor flows into the liquid nitrogen container 94 through the fourth pipeline 95, liquid nitrogen in the liquid nitrogen container 94 cools the water vapor, meanwhile, the push block 98 pushes the block 910 to move upwards, the fourth spring 99 compresses, a part of the water vapor flows into the refrigerating pipeline 96, the refrigerating pipeline 96 cools the water vapor, the environment in the cold box 1 can be refrigerated secondarily, the environment in the cold box 1 is always kept, the water vapor is adhered to the third pipeline 92 and converted into liquid, the liquefied water flows back into the pressure container 93 through the condensing pipeline, the liquid container 93, the liquid pipeline 71, the second pipeline 71, the heat exchange pipe 75 and the fourth spring 98 does not reset under the action of the reset force of the fourth spring 98, and the fourth spring is not reset under the reset, and the effect of the reset force of the fourth spring is not reset, and the heat in the fourth pipeline 95 is reset, and the heat is not reset under the reset, and the condition is under the condition, and can under the condition, and the condition.
The dust removal device comprises a dust removal motor 1103, a vibration mechanism 11, the vibration mechanism 11 comprises a collection box 1101, a second support 1102, a dust removal motor 1103, an inductor 1104, a mounting frame 1105, a spring block 1106, a fifth spring 1107, a disc 1108 and a connecting rod 1109, wherein the lower right side of the outer protection frame 62 is connected with the collection box 1101, the second support 1102 is connected to the inner top of the collection box 1101, the dust removal motor 1103 is installed in the second support 1102, an output shaft of the dust removal motor 1103 penetrates through the bottom of the collection box 1101, the inductor 1104 is installed on the upper right side of the filter cartridge 65 on the front side, the inductor 1104 is also installed on the upper right side in the outer protection frame 62, the inductor 1104 and the dust removal motor 1103 are electrically connected, the upper inner side of the outer protection frame 62 is connected with two mounting frames 1105, the two filter cartridges 65 penetrate through the two mounting frames 1105 respectively, three spring blocks 1106 are respectively arranged on the outer sides of the two mounting frames 1105 in a sliding mode, the two ends of each spring block 1106 are respectively connected with the spring block 1106, the bottom of the output shaft of the dust removal motor 1103 is connected with the disc 1108, the left side of the disc 1108 is rotatably connected with the left side of the disc 1109, and the connecting rod 1109 is rotatably connected with the connecting rod 1109 on the left side.
The dust removing mechanism 12 comprises a connecting pipe 1201, a communicating block 1202, a second fixing block 1203, a filter screen 1204 and second fan blades 1205, wherein the lower parts of the right sides of the two filter cylinders 65 are respectively connected with the connecting pipe 1201, the two connecting pipes 1201 respectively penetrate through the front side and the rear side of the collecting box 1101, the communicating block 1202 is connected between the two connecting pipes 1201, the second bracket 1102 is positioned in the communicating block 1202, the lower part of the right side of the outer protection frame 62 is connected with the second fixing block 1203, an output shaft of the dust removing motor 1103 penetrates through the second fixing block 1203, the top of the second fixing block 1203 is connected with the filter screen 1204, the second fan blades 1205 are installed on the upper part of the output shaft of the dust removing motor 1103, and the second fan blades 1205 are positioned in the second fixing block 1203.
The inductor 1104 is opened by people, the air in the filter cartridge 65 can flow into the communicating block 1202 through the connecting pipe 1201, the filter screen 1204 can filter dust in the air, at the moment, the filter cartridge 65 can shake, the elastic block 1106 and the fifth spring 1107 play a buffering role on the filter cartridge 65, the two inductors 1104 are staggered in a correlation way, the dust removing motor 1103 starts to work, the dust removing motor 1103 drives the second fan blade 1205 to rotate, the second fan blade 1205 can blow off the dust on the filter screen 1204, the dust floats into the collecting box 1101, the dust in the filter cartridge 65 is collected, excessive dust accumulated in the filter cartridge 65 is avoided, the filter cartridge 65 is prevented from being blocked, meanwhile, the dust removing motor 1103 can drive the disc 1108 to rotate, the disc 1108 can drive the movable plate 66 to move left and right through the connecting rod 1109, the movable plate 66 can shake the telescopic pipe 69, the filter cartridge 65 can shake, the dust on the inner wall of the filter cartridge 65 can shake off, the dust can enter the connecting pipe 1201 better, after the compressor 4 is closed, the air does not enter the filter cartridge 65, and the dust removing motor 1103 is closed again.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a cold box precooling equipment of natural gas liquefaction for chemical industry which characterized in that includes:
the cooling device comprises a cooling box (1) and an air inlet pipe (2), wherein the air inlet pipe (2) is fixedly connected to the lower part of one side of the cooling box (1);
the mounting seat (3), the mounting seat (3) is fixedly connected to one side of the inner wall of the cold box (1), and the air inlet pipe (2) is fixedly connected with the mounting seat (3);
the compressor (4) is arranged on the mounting seat (3);
the first pipeline (5) is fixedly connected to the compressor (4);
the filtering mechanism (6) is arranged on one side, close to the air inlet pipe (2), of the cold box (1);
the heat exchange mechanism (7) is arranged on the first pipeline (5);
the two first exhaust pipes (8) are fixedly connected to one side, far away from the air inlet pipe (2), of the cold box (1), and the first exhaust pipes (8) are connected with the heat exchange mechanism (7);
the water cooling mechanism (10) is arranged on one side, close to the first exhaust pipe (8), of the cold box (1);
the filtering mechanism (6) comprises:
the fixing frames (61) are at least two, and are fixedly connected to one side, close to the air inlet pipe (2), of the cold box (1);
the outer protection frame (62) is fixedly connected between the fixing frames (61);
the first springs (64) are fixedly connected to the two sides of the inner part of the outer protective frame (62);
the mounting plate (63) is fixedly connected between the first springs (64);
the filter cartridges (65) are at least two, and are embedded and installed on the installation plate (63);
the second springs (67) are fixedly connected to the two sides of the inner bottom of the outer protective frame (62);
the movable plate (66) is fixedly connected between the second springs (67);
the telescopic pipes (69) are fixedly connected to the lower sides of the filter cylinders (65), and the telescopic pipes (69) penetrate through the movable plates (66);
the upper parts of the telescopic pipes (69) are respectively provided with a third spring (68), and two ends of the third spring (68) are respectively connected with the filter cylinder (65) and the movable plate (66);
a communicating pipe (610), wherein the communicating pipe (610) is fixedly connected between the telescopic pipes (69), and the communicating pipe (610) is fixedly connected with the air inlet pipe (2);
the heat exchange mechanism (7) comprises:
a liquid container (71), wherein the liquid container (71) is mounted on the upper side of the cold box (1);
a circulation pump (72), the circulation pump (72) being mounted on the upper side of the liquid container (71);
the second pipelines (73) are at least two and are respectively arranged at two sides of the liquid container (71), and the second pipelines (73) penetrate through the cold box (1);
the gas tank (74) is fixedly connected to the lower end of the second pipeline (73), the gas tank (74) is fixedly connected with the first pipeline (5), and the gas tank (74) is fixedly connected with the first exhaust pipe (8);
the heat exchange pipes (75) are arranged in the gas tanks (74), and the heat exchange pipes (75) are fixedly connected with the second pipeline (73);
a circulation pipe (76), the circulation pipe (76) being installed between the heat exchange pipes (75), the circulation pipe (76) passing through the gas tank (74);
the water cooling mechanism (10) comprises:
the base (1001) is fixedly connected to one side, close to the first exhaust pipe (8), of the cold box (1);
the cooling box (1002), the cooling box (1002) is installed on the upper side of the base (1001), and the first exhaust pipe (8) is fixedly connected with the cooling box (1002);
a second exhaust pipe (1003), wherein the second exhaust pipe (1003) is fixedly connected to one side of the cooling box (1002);
the spray pipe (1004) is fixedly connected to one side, close to the second exhaust pipe (1003), of the cooling box (1002);
a first bracket (1005), wherein the first bracket (1005) is fixedly connected to the inner wall of the cooling box (1002);
a heat dissipation motor (1006), the heat dissipation motor (1006) being mounted on the first bracket (1005);
a first fan blade (1007), wherein the first fan blade (1007) is installed on an output shaft of the heat dissipation motor (1006);
the refrigerator also comprises a refrigerating mechanism (9), and the refrigerating mechanism (9) comprises:
a pressure vessel (91), the pressure vessel (91) being mounted outside the circulation pipe (76);
a third pipeline (92), wherein the third pipeline (92) is fixedly connected to one side of the pressure container (91);
the condensing pipeline (93) is fixedly connected to one side of the third pipeline (92), and the condensing pipeline (93) is fixedly connected with the pressure container (91);
a fourth pipeline (95), the fourth pipeline (95) being fixedly connected to the upper part of the third pipeline (92);
the liquid nitrogen container (94), the liquid nitrogen container (94) is fixedly connected to one side of the fourth pipeline (95);
a refrigerating pipeline (96), wherein the refrigerating pipeline (96) is fixedly connected to the upper end of the third pipeline (92);
a first fixed block (97), the first fixed block (97) being disposed within the third conduit (92);
the pushing block (98), the pushing block (98) is arranged in the middle of the first fixed block (97) in a sliding mode, and the pushing block (98) is matched with the third pipeline (92);
a fourth spring (99), the fourth spring (99) being fixedly connected in the third pipe (92);
the blocking block (910) is fixedly connected to the lower end of the fourth spring (99), and the blocking block (910) is matched with the fourth pipeline (95).
2. The cold box precooling apparatus for liquefying natural gas for chemical industry as claimed in claim 1, further comprising a shaking mechanism (11), wherein the shaking mechanism (11) comprises:
the collecting box (1101), the said collecting box (1101) is fixedly connected to one side of the said outer protective frame (62);
a second bracket (1102), wherein the second bracket (1102) is fixedly connected to the inner wall of the collecting box (1101);
a dust removal motor (1103), wherein the dust removal motor (1103) is installed in the second bracket (1102), and an output shaft of the dust removal motor (1103) passes through the collecting box (1101);
the sensor (1104) is arranged on one filter cylinder (65), the sensor (1104) is also arranged on the upper part of the inner wall of the outer protective frame (62), and the sensor (1104) is electrically connected with the dust removal motor (1103);
the mounting frames (1105), at least two mounting frames (1105) are fixedly connected to the upper part of the inner wall of the outer protection frame (62), and the filter cartridges (65) penetrate through the mounting frames (1105);
the elastic blocks (1106), wherein at least three elastic blocks (1106) are arranged on the outer side of the mounting frame (1105) in a sliding mode;
a fifth spring (1107), wherein each spring block (1106) is provided with a fifth spring (1107), and two ends of the fifth spring (1107) are respectively connected with the spring block (1106) and the mounting frame (1105);
the disc (1108), the said disc (1108) is fixedly connected to the output shaft of the said dust-removing motor (1103);
and a connecting rod (1109), wherein the connecting rod (1109) is rotatably connected to the lower side of the disc (1108), and the connecting rod (1109) is rotatably connected with the movable plate (66).
3. A cold box pre-cooling device for liquefying natural gas for chemical industry as claimed in claim 2, further comprising a dust removing mechanism (12), wherein the dust removing mechanism (12) comprises:
a connecting pipe (1201), wherein one side of the filter cartridge (65) is fixedly connected with the connecting pipe (1201), and the connecting pipe (1201) penetrates through the collecting box (1101);
a communication block (1202), wherein the communication block (1202) is fixedly connected between the connecting pipes (1201), and the second bracket (1102) is positioned in the communication block (1202);
the second fixed block (1203), the second fixed block (1203) is fixedly connected to one side of the outer protection frame (62) close to the collecting box (1101), and an output shaft of the dust removal motor (1103) penetrates through the second fixed block (1203);
the filter screen (1204) is fixedly connected to the upper side of the second fixed block (1203);
the second fan blade (1205) is fixedly connected to an output shaft of the dust removal motor (1103), and the second fan blade (1205) is positioned in the second fixed block (1203).
4. A cold box pre-cooling device for liquefying natural gas for chemical industry as in claim 1, wherein the first fixed block (97) is evenly spaced with through holes for ventilation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210097772.6A CN114508898B (en) | 2022-01-27 | 2022-01-27 | Cold box precooling equipment for liquefying natural gas for chemical industry |
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| CN202210097772.6A CN114508898B (en) | 2022-01-27 | 2022-01-27 | Cold box precooling equipment for liquefying natural gas for chemical industry |
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| CN117180782B (en) * | 2023-10-17 | 2024-02-27 | 东营联合石化有限责任公司 | Heat recovery device of reforming depentanizer |
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| CN102564057A (en) * | 2011-12-19 | 2012-07-11 | 中国海洋石油总公司 | Propane pre-cooling mixed refrigerant liquefaction system applied to base-load type natural gas liquefaction factory |
| CN104110938A (en) * | 2014-06-24 | 2014-10-22 | 中国石油大学(北京) | Pipeline gas differential pressure refrigeration liquefying device and technology by combining nitrogen to achieve expansion refrigeration |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10788259B1 (en) * | 2015-12-04 | 2020-09-29 | Chester Lng, Llc | Modular, mobile and scalable LNG plant |
| CN105783419B (en) * | 2016-03-30 | 2019-08-20 | 重庆耐德能源装备集成有限公司 | A kind of natural gas pre-cooler and pre- cooling control method |
| CN108870427A (en) * | 2018-09-10 | 2018-11-23 | 甘肃红峰机械有限责任公司 | A kind of fume waste heat recyclable device |
| CN212566490U (en) * | 2020-07-29 | 2021-02-19 | 胡成星 | Pre-cooling type natural gas liquefaction device |
| CN113465291A (en) * | 2021-07-20 | 2021-10-01 | 孙本涛 | Refrigeration natural gas liquefaction treatment facility |
| CN113731099B (en) * | 2021-08-22 | 2023-10-13 | 芜湖中燃城市燃气发展有限公司 | Natural gas impurity removal device and method |
| CN113776276A (en) * | 2021-08-27 | 2021-12-10 | 孙本涛 | Composite refrigeration liquefied natural gas liquefaction processing device |
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|---|---|---|---|---|
| DE3503413A1 (en) * | 1985-02-01 | 1986-08-07 | Christian Dr.-Ing. 8570 Pegnitz Koch | METHOD AND DEVICE FOR THE FOUR-STAGE COMBUSTION OF GASEOUS AND LIQUID FUELS WITH NON-OXYGEN-FREE EXHAUST GASES |
| CN102564057A (en) * | 2011-12-19 | 2012-07-11 | 中国海洋石油总公司 | Propane pre-cooling mixed refrigerant liquefaction system applied to base-load type natural gas liquefaction factory |
| CN104110938A (en) * | 2014-06-24 | 2014-10-22 | 中国石油大学(北京) | Pipeline gas differential pressure refrigeration liquefying device and technology by combining nitrogen to achieve expansion refrigeration |
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Effective date of registration: 20230605 Address after: 510000 101, No. 7, Xingfeng Sanjia Village Road, Taihe Town, Baiyun District, Guangzhou City, Guangdong Province Applicant after: Guangzhou Xingfeng Energy Technology Co.,Ltd. Address before: Room 221, building 1, No. 521, ningliu Road, Changlu street, Jiangbei new area, Nanjing, Jiangsu 210044 Applicant before: Lai Shian |
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