CN113776276A - Composite refrigeration liquefied natural gas liquefaction processing device - Google Patents
Composite refrigeration liquefied natural gas liquefaction processing device Download PDFInfo
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- CN113776276A CN113776276A CN202110992194.8A CN202110992194A CN113776276A CN 113776276 A CN113776276 A CN 113776276A CN 202110992194 A CN202110992194 A CN 202110992194A CN 113776276 A CN113776276 A CN 113776276A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 34
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 174
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 239000003345 natural gas Substances 0.000 claims abstract description 87
- 238000009833 condensation Methods 0.000 claims abstract description 74
- 230000005494 condensation Effects 0.000 claims abstract description 71
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 18
- 238000000605 extraction Methods 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 12
- 239000007787 solid Substances 0.000 abstract description 4
- 230000000740 bleeding effect Effects 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000003651 drinking water Substances 0.000 description 6
- 235000020188 drinking water Nutrition 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000002146 bilateral effect Effects 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
-
- 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
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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
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0022—Hydrocarbons, e.g. natural gas
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention relates to a natural gas liquefaction processing device, in particular to a composite refrigeration liquefied natural gas liquefaction processing device. The technical problem to be solved is as follows: provided is a composite refrigeration liquefied natural gas liquefaction processing device which can remove impurities and water in natural gas and can rapidly cool the natural gas. The technical scheme is as follows: the utility model provides a compound refrigeration liquefied natural gas liquefaction processing apparatus, is including base, shell, seal pot, natural gas intake pipe, the case that condenses, the subassembly of bleeding, the subassembly that condenses, drainage component and water injection subassembly, the base top is connected with the shell, the middle part is connected with in the shell the seal pot. According to the invention, natural gas is directly injected into water, and some water-soluble impurities in the natural gas can be dissolved in the water, so that the impurities in the natural gas can be removed, and then the water in the natural gas can be desublimated into solid in the condensation box.
Description
Technical Field
The invention relates to a natural gas liquefaction processing device, in particular to a composite refrigeration liquefied natural gas liquefaction processing device.
Background
Natural gas is a naturally occurring gas, can be used as a fuel, mainly comprises methane, ethane, propane and the like, and when the natural gas is used, the natural gas needs to be liquefied and then changed into liquid, the volume of the natural gas can be reduced by many times, and then the natural gas is transported, so that the natural gas needs to be liquefied after being cooled before the transportation process of the natural gas.
At present, all need carry out the precooling to the natural gas when liquefying the natural gas, make its temperature reduce to being close its critical temperature who becomes liquid earlier, the subsequent preparation process of being convenient for, and current device is when carrying out the precooling to the natural gas, can directly cool off for the natural gas usually, however when the natural gas just produces, wherein can be mixed with some other impurity usually, if directly cool off it, can influence liquefied natural gas's purity.
Therefore, there is a need for a composite refrigeration liquefied natural gas liquefaction processing device which can remove impurities from natural gas and can rapidly cool the natural gas.
Disclosure of Invention
In order to overcome the defect that some impurities in natural gas are not removed in the prior art, the technical problem to be solved is as follows: provided is a composite refrigeration liquefied natural gas liquefaction processing device which can remove impurities and water in natural gas and can rapidly cool the natural gas.
The technical scheme is as follows: a composite refrigeration liquefied natural gas liquefaction treatment device comprises a base, a shell, a seal tank, a natural gas inlet pipe, a condensation tank, an air exhaust assembly, a condensation assembly, a drainage assembly and a water injection assembly, wherein the top of the base is connected with the shell, the seal tank is connected with the middle part in the shell, a water outlet is formed in the bottom of the seal tank, the natural gas inlet pipe is connected to one side of the top of the seal tank, external natural gas enters from the natural gas inlet pipe, the condensation tank is connected to the upper side in the shell, the air exhaust assembly for exhausting the natural gas into the condensation tank is installed on one side in the shell, the air exhaust assembly is connected between the seal tank and the condensation tank, the condensation assembly for cooling the natural gas is arranged on the upper part in the condensation tank, the drainage assembly for discharging water in the seal tank is arranged on the lower part of the seal tank, and the water injection assembly for adding water into the sealed tank is arranged on one side in the shell.
Further, the air exhaust assembly comprises a first support frame, a first air pump, a first air exhaust pipe, a first one-way air outlet pipe, a liquid level sensor and an air pressure sensor, one side of the shell is connected with the first support frame, the first support frame is provided with the first air pump, the bottom of the first air pump is connected with the first air exhaust pipe, the bottom of the first air exhaust pipe penetrates through the seal tank, the top of the first air pump is connected with the first one-way air outlet pipe, the first one-way air outlet pipe is connected with the condensation box, the upper portion of one side of the interior of the seal tank is provided with the liquid level sensor used for detecting the water level of the seal tank, and the upper portion of the interior of the condensation box is provided with the air pressure sensor used for detecting the air pressure in the condensation box.
Furthermore, the condensation component comprises a second air pump, a first air pipe, a refrigeration pipe, a condensation pipe, a second one-way air outlet pipe, a third air pump, an exhaust pipe and a humidity sensor, the top of the condensation box is symmetrically connected with the first air pipes, the second air pump is connected between the tops of the first air pipes, the two sides in the condensation box are provided with the refrigeration pipes, the condensation pipes are symmetrically connected between the refrigeration pipes, the middle in the condensation box is connected with a clapboard which separates the two condensation tubes, one side of the condensation box is connected with the second one-way air outlet tube, the second one-way air outlet pipe is connected with the third air pump which is connected with the exhaust pipe, the exhaust pipe penetrates through the shell, and a partition plate in the middle of the condensation box is symmetrically connected with a humidity sensor used for detecting the humidity in the condensation box.
Furthermore, the drainage component comprises a first baffle, a drainage pipe, a first movable frame, a first rack, a first rotating rod, a first driving motor, a first gear and a first guide sleeve, the first baffle is arranged at the lower side of the sealing tank in a sliding manner, the bottom end of the first baffle is connected with the first movable frame, the first rack is arranged on one side in the first movable frame, the bottom of the sealing tank is connected with the drain pipe, the first driving motor is arranged on one side of the sealing tank, the first rotating rod is rotatably arranged on the lower portion in the sealing tank, the first rotating rod is connected with an output shaft of the first driving motor, the middle part of the first rotating rod is connected with the first gear, the first gear is meshed with the first rack, the lower portion in the sealing tank is symmetrically connected with the first guide sleeve, and the first guide sleeve is connected with the first movable frame in a sliding mode.
Further, the water injection subassembly is including second support frame, water tank, water pump, drinking-water pipe, first inlet tube, second inlet tube, filter and distance sensor, one side is connected with in the shell the second support frame, second support frame one side is equipped with the water tank, install on one side of the water tank upper portion the water pump, the water pump bottom is connected with the drinking-water pipe, the drinking-water pipe with water tank lower part intercommunication, the water pump upside is connected with first inlet tube, first inlet tube with seal pot upper portion intercommunication, the water tank lower part with be connected with between the seal pot lower part the second inlet tube, install second inlet tube one side the filter, one side lower part is equipped with in the seal pot distance sensor.
The sealing device is characterized by further comprising a control assembly, wherein the control assembly comprises a first air inlet pipe, a ball valve, a second gear, a second guide sleeve, a U-shaped rod, a first spring and a second rack, one side of the natural gas inlet pipe is connected with the first air inlet pipe, the ball valve is arranged on the first air inlet pipe in a rotating mode, the second gear is connected to two sides of the ball valve, the second guide sleeve is symmetrically connected to one side of the sealing tank, the U-shaped rod is arranged between the second guide sleeves in a sliding mode, the first spring is symmetrically connected between the U-shaped rod and the second guide sleeves, the first spring is wound on the U-shaped rod, the second rack is symmetrically connected to the top of the U-shaped rod, and the second rack is meshed with the second gear.
Further, the movable clamping device comprises a fixing assembly, the fixing assembly comprises a first guide rod, a first sliding rod, a second spring, a movable clamping rod, a second guide rod, a second movable frame, a floating ball, a contact frame and a contact rod, the first guide rod is symmetrically connected to one side in the sealing tank, the first sliding rod is arranged between the first guide rods in a sliding mode, the second spring is symmetrically connected between the first sliding rod and the sealing tank, the second spring is wound on the first guide rod, the movable clamping rod is arranged in the middle of the first sliding rod, the second guide rod is symmetrically arranged on one side in the sealing tank, the second movable frame is arranged between the second guide rods in a sliding mode, the floating ball is arranged on the second movable frame, the bottom of the second movable frame is connected with the contact frame, and one side of the U-shaped rod is connected with the contact rod.
The composite refrigeration liquefied natural gas liquefaction device further comprises a control box, wherein the control box is arranged on one side of the bottom in the shell, a switching power supply, a control module and a power supply module are installed in the control box, the switching power supply supplies power to the composite refrigeration liquefied natural gas liquefaction processing device, the output end of the switching power supply is electrically connected with the power supply module, the power supply module is connected with a power supply main switch through a circuit, and the control module is electrically connected with the power supply module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit, the liquid level sensor, the humidity sensor, the air pressure sensor and the distance sensor are electrically connected with the control module, and the first driving motor, the water pump, the first air pump, the second air pump and the third air pump are connected with the control module through peripheral circuits.
Has the advantages that: 1. the invention can remove impurities and water in the natural gas and can rapidly cool the natural gas;
2. according to the invention, natural gas is directly injected into water, and some water-soluble impurities in the natural gas can be dissolved in the water, so that the impurities in the natural gas can be removed, and then the water in the natural gas can be desublimated into a solid in a condensation box, so that the subsequent preparation cannot be influenced;
3. according to the invention, after impurities in natural gas are dissolved in water, the water becomes cloudy, the first driving motor can be started to drive the first baffle plate to move upwards, so that the water is discharged, is filtered under the action of the filter and is finally discharged into the water tank again, and the effect of recycling is achieved;
4. according to the invention, when the water in the seal tank does not reach the preset value of the liquid level sensor, the ball valve can be closed all the time to prevent the natural gas from being injected, and when the water pump does not inject water into the seal tank any more, the ball valve can be automatically opened to enable the natural gas to continuously enter.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
FIG. 2 is a schematic view of a first partial body structure according to the present invention.
Fig. 3 is a schematic perspective view of a second embodiment of the present invention.
FIG. 4 is a schematic view of a second partial body structure according to the present invention.
Fig. 5 is a perspective view of a third embodiment of the present invention.
Figure 6 is a schematic view of the installation of the air extraction assembly of the present invention.
Figure 7 is a schematic perspective view of a portion of the pumping assembly of the present invention.
Fig. 8 is a schematic view of the installation of the coagulation assembly of the present invention.
Fig. 9 is a perspective view of a coagulation module of the present invention.
Fig. 10 is an installation view of the drain assembly of the present invention.
Fig. 11 is an enlarged view of portion a of the present invention.
Fig. 12 is a schematic view of the installation of the control assembly of the present invention.
Fig. 13 is a partial perspective view of the control assembly and the drain assembly of the present invention.
Fig. 14 is a partial perspective view of the control assembly of the present invention.
Fig. 15 is a schematic view of the installation of the fixing assembly of the present invention.
Fig. 16 is a partial perspective view of the fixing assembly and the control assembly of the present invention.
FIG. 17 is a schematic view of the installation of the water injection assembly of the present invention.
Fig. 18 is a circuit block diagram of the present invention.
Fig. 19 is a circuit schematic of the present invention.
Part names and serial numbers in the figure: 1-base, 2-shell, 3-control box, 4-seal tank, 5-natural gas inlet pipe, 6-condensation box, 7-air extraction component, 701-first support frame, 702-first air pump, 703-first air extraction pipe, 704-first one-way air outlet pipe, 705-liquid level sensor, 706-air pressure sensor, 8-condensation component, 801-second air pump, 802-first air pipe, 803-refrigeration pipe, 804-condensation pipe, 805-second one-way air outlet pipe, 806-third air pump, 807-exhaust pipe, 808-humidity sensor, 9-drainage component, 901-first baffle, 902-drainage pipe, 903-first movable frame, 904-first rack, 905-first rotating rod, 906-first driving motor, 907-a first gear, 908-a first guide sleeve, 10-a control assembly, 1001-a first air inlet pipe, 1002-a ball valve, 1003-a second gear, 1004-a second guide sleeve, 1005-a U-shaped rod, 1006-a first spring, 1007-a second rack, 11-a fixed assembly, 1101-a first guide rod, 1102-a first sliding rod, 1103-a second spring, 1104-a movable clamping rod, 1105-a second guide rod, 1106-a second movable frame, 1107-a floating ball, 1108-a contact frame, 1109-a contact rod, 12-a water injection assembly, 1201-a second support frame, 1202-a water tank, 1203-a water pump, 1204-a water pumping pipe, 1205-a first water inlet pipe, 1206-a second water inlet pipe, 1207-a filter and 1208-a distance sensor.
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Example 1
A composite refrigeration liquefied natural gas liquefaction treatment device comprises a base 1, a shell 2, a seal tank 4, a natural gas inlet pipe 5, a condensation tank 6, an air extraction component 7, a condensation component 8, a drainage component 9 and a water injection component 12, wherein the top of the base 1 is fixedly connected with the shell 2, the middle part in the shell 2 is connected with the seal tank 4 through a bolt, the bottom of the seal tank 4 is provided with a water outlet, the right side of the top of the seal tank 4 is connected with the natural gas inlet pipe 5, the rear upper side of the inner wall of the shell 2 is connected with the condensation tank 6 through a bolt, the air extraction component 7 is arranged on the left side of the inner wall of the shell 2, the air extraction component 7 is connected between the seal tank 4 and the condensation tank 6, the upper part in the condensation tank 6 is provided with the condensation component 8, the lower part of the seal tank 4 is provided with the drainage component 9, a water injection assembly 12 is arranged at the rear lower side of the inner wall of the shell 2.
The condensation component 8 comprises a second air pump 801, a first air pipe 802, a refrigeration pipe 803, a condensation pipe 804, a second one-way air outlet pipe 805, a third air pump 806, an exhaust pipe 807 and a humidity sensor 808, the top of the condensation box 6 is connected with the first air pipe 802 in a bilateral symmetry manner, the second air pump 801 is connected between the tops of the first air pipes 802, the refrigeration pipes 803 are arranged on the front side and the rear side of the inner wall of the condensation box 6, the refrigeration pipes 803 are connected with the condensation pipe 804 in a bilateral symmetry manner, a partition board is connected between the two condensation pipes 804 in the condensation box 6, the second one-way air outlet pipe 805 is connected on the right side of the condensation box 6, the third air pump 806 is connected on the right side, the exhaust pipe 807 penetrates through the right side of the shell 2, and the humidity sensor 808 is connected on the partition board in the middle of the condensation box 6 in a bilateral symmetry manner.
The drainage component 9 comprises a first baffle 901, a drainage pipe 902, a first movable frame 903, a first rack 904, a first rotating rod 905, a first driving motor 906, a first gear 907 and a first guide sleeve 908, wherein the first baffle 901 is arranged on the lower side of the sealing tank 4 in a sliding manner, the bottom end of the first baffle 901 is connected with the first movable frame 903, the first rack 904 is arranged on the left side in the first movable frame 903, the drainage pipe 902 is connected with the bottom of the sealing tank 4, the first driving motor 906 is installed on the lower portion of the front side of the sealing tank 4, the first rotating rod 905 is arranged on the lower portion in the sealing tank 4 in a rotating manner, the front side of the first rotating rod 905 is connected with an output shaft of the first driving motor 906, the first gear 907 is connected to the middle of the first rotating rod 905, the first gear 907 is engaged with the first rack 904, the first guide sleeve 908 is symmetrically connected to the left and right of the lower portion in the sealing tank 4, and the first guide sleeve 908 is connected with the first movable frame 903 in a sliding manner.
When people need to liquefy natural gas, the natural gas liquefaction processing device can be used for preliminarily cooling the natural gas and removing impurities in the natural gas, a proper amount of water is filled in the seal tank 4 in an initial state, a first preset value and a second preset value are arranged in the liquid level sensor 705, the first preset value is larger than the second preset value, a first preset value and a second preset value are arranged in the air pressure sensor 706, the first preset value is larger than the second preset value, people firstly press a power main switch to electrify the device, then the natural gas is injected into the seal tank 4 through the natural gas inlet pipe 5, the natural gas can enter the water, as the natural gas contains some substances which are easy to dissolve in the water and cannot dissolve in the water, the natural gas can be preliminarily filtered, the natural gas can float to the upper side of the seal tank 4, and then the first air pump 702 is started, the first air pump 702 injects natural gas into the condensation box 6 through the first air suction pipe 703 and the first one-way air outlet pipe 704, when the air pressure sensor 706 senses that the air pressure in the condensation box 6 reaches a first preset value, the control module controls the first air pump 702 to be closed, at this time, people stop injecting the natural gas, the control module simultaneously controls the second air pump 801 to be started, people can simultaneously start the refrigeration pipe 803 to refrigerate, so that the condensation pipe 804 also reduces the temperature along with the air pressure, so as to refrigerate the whole interior of the condensation box 6, the second air pump 801 sucks the natural gas through the first air pipe 802 on the left side and discharges the natural gas through the first air pipe 802 on the right side, so that the natural gas can continuously circulate in the condensation box 6, and further the natural gas can be cooled more rapidly, because the natural gas is discharged into the condensation box 6 through water, the natural gas contains some water, under the action of the cooling pipe 803 and the condensation pipe 804, water is desublimated into a solid and attached to the condensation pipe 804, so that water in natural gas can be removed, when the water in the natural gas is continuously changed into the solid, the humidity of the natural gas in the condensation tank 6 is reduced, and when the humidity sensor 808 detects that the humidity of the gas in the condensation tank 6 reaches a preset value, the control module controls the second air pump 801 to be turned off and controls the third air pump 806 to be started, the third air pump 806 discharges the natural gas in the condensation tank 6 through the second one-way air outlet pipe 805 and the exhaust pipe 807, and people can collect the natural gas outside the exhaust pipe 807; when the air pressure sensor 706 senses that the air pressure in the coagulation tank 6 reaches the first preset value, the control module controls the first driving motor 906 to rotate forward for five seconds and then stops operating, so as to drive the first rotating rod 905 and the first gear 907 to rotate forward continuously, thereby driving the first rack 904, the first movable frame 903 and the first baffle 901 to move upwards, discharging the turbid water in the sealed tank 4 into the drain pipe 902 from the water outlet, when the liquid level sensor 705 detects that the liquid level of the seal pot 4 reaches the second preset value, which indicates that the water in the seal pot 4 completely flows out, the control module controls the first driving motor 906 to rotate reversely for five seconds and then stops operating, thereby driving the first rotating rod 905 and the first gear 907 to rotate reversely continuously, so that the first rack 904, the first movable frame 903 and the first baffle 901 move downwards to reset, and the first baffle 901 blocks the water outlet again; after the air in the condensation tank 6 is gradually pumped by the third air pump 806, when the air pressure sensor 706 detects that the pressure of the air reaches a second preset value, and at the same time, the distance sensor 1208 detects that the distance between the first baffle 901 and the distance sensor 1208 reaches a preset value, the control module controls the third air pump 806 to be closed, and controls the water pump 1203 to be started, the water pump 1203 enables the water in the water tank 1202 to enter the sealed tank 4 through the water pumping pipe 1204 and the first water inlet pipe 1205, the water falling from the water discharging pipe 902 enters the second water inlet pipe 1206, the water is filtered under the action of the filter 1207, finally the water enters the water tank 1202 again, the liquid level in the sealed tank 4 rises continuously, when the liquid level sensor 705 detects that the liquid level in the sealed tank 4 reaches the first preset value, the control module controls the water pump 1203 to be closed, and controls the first air pump 702 to be started after five seconds, this in-process people continue to input the natural gas in the natural gas intake pipe 5, when not needing to use this natural gas liquefaction processing apparatus at last, press the power master switch once more, give this device outage, so reciprocal just can make the natural gas can pass through the filtration of water earlier, and the rethread condenses the effect of subassembly 8, refrigerates the natural gas to get rid of the water in the natural gas, later just can obtain the lower natural gas of comparatively pure temperature.
Example 2
Based on the embodiment 1, as shown in fig. 12, 13, 14, 15, 16, 18 and 19, the present invention further includes a control assembly 10, the control assembly 10 includes a first air inlet pipe 1001, a ball valve 1002, a second gear 1003, a second guide sleeve 1004, a U-shaped rod 1005, a first spring 1006 and a second gear 1007, the left side of the natural gas inlet pipe 5 is connected with the first air inlet pipe 1001, the ball valve 1002 is rotatably disposed on the first air inlet pipe 1001, the front and rear sides of the ball valve 1002 are connected with the second gear 1003, the front and rear sides of the left side of the sealed tank 4 are symmetrically connected with the second guide sleeve 1004, a sliding U-shaped rod 1005 is disposed between the second guide sleeves 1004, the upward movement of the first baffle 901 drives the U-shaped rod 1005 to move upward, the front and rear symmetrical connection between the U-shaped rod 1005 and the second guide sleeve 1004 is connected with the first spring 1006, the first spring is wound around the U-shaped rod 1005, the front and rear symmetrical connection of the top of the U-shaped rod 1005 is connected with the second gear 1007, the second rack 1007 is engaged with the second gear 1003.
The device also comprises a fixed assembly 11, the fixed assembly 11 comprises a first guide rod 1101, a first sliding rod 1102, a second spring 1103, a movable clamping rod 1104, a second guide rod 1105, a second movable frame 1106, a floating ball 1107, a contact frame 1108 and a contact rod 1109, the first guide rod 1101 is symmetrically connected with the left side of the inner wall of the sealed tank 4 in front and back, the first sliding rod 1102 is slidably arranged between the first guide rods 1101, the second spring 1103 is symmetrically connected with the front and back between the first sliding rod 1102 and the sealed tank 4 in front and back, the second spring 1103 is wound on the first guide rod 1101, the movable clamping rod 1104 is arranged in the middle of the first sliding rod 1102, the second guide rod 1105 is symmetrically arranged in front and back on the left side of the inner wall of the sealed tank 4, the second movable frame 1106 is slidably arranged between the second guide rods 1105, the floating ball 1107 is arranged on the right side of the second movable frame 1106, the contact frame 1108 is connected with the bottom of the second movable frame 1106, the contact rod 1109 is connected with the right side of the U-shaped rod 1005, the movable clamping rod 1104 can clamp the contact rod 1109, the upward movement of the contact frame 1108 may cause the movable catch 1104 to move leftward.
When the first baffle 901 moves upwards, the U-shaped rod 1005, the contact rod 1109 and the second rack 1007 are driven to move upwards, the first spring 1006 is stretched, the second rack 1007 drives the second gear 1003 and the ball valve 1002 to rotate anticlockwise and close, natural gas cannot be injected into the natural gas inlet pipe 5 through the first inlet pipe 1001 at the moment, because the first baffle 901 moves upwards, water in the seal tank 4 gradually flows out, the floating ball 1107 loses buoyancy, under the action of gravity, the floating ball 1107, the second movable frame 1106 and the contact frame 1108 move downwards, the contact frame 1108 moves downwards, the movable clamping rod 1104 cannot be clamped any more, under the action of the compressed second spring 1103, the movable clamping rod 1104 can move rightwards to reset, at the moment, the contact rod 1109 is positioned above the movable clamping rod 1104, when the first baffle 901 moves downwards, the first baffle 901 does not push the U-shaped rod 1005 any more, under the action of the first spring 1006, the U-shaped rod 1005, the contact rod 1109 and the second rack 1007 can be reset downwards for a short distance, the contact rod 1109 can be blocked by the movable clamping rod 1104, the U-shaped rod 1005, the contact rod 1109 and the second rack 1007 cannot move downwards continuously, the ball valve 1002 cannot be opened at the moment, natural gas cannot be injected, water continuously flows into the sealing tank 4, the floating ball 1107, the second movable frame 1106 and the contact frame 1108 can move upwards under the action of buoyancy, the contact frame 1108 moves upwards to be in contact with the movable clamping rod 1104 and pushes the movable clamping rod leftwards, the second spring 1103 is compressed, the movable clamping rod 1104 cannot block the contact rod 1109 any more, the U-shaped rod, the contact rod 1109 and the second rack 1007 can be reset downwards under the action of the first spring 1006, the second gear 1003 and the ball valve 1002 are driven to rotate and reset downwards, and the natural gas can be injected again.
The composite refrigeration liquefied natural gas liquefaction device also comprises a control box 3, the control box 3 is arranged on the front side of the bottom in the shell 2, a switching power supply, a control module and a power supply module are arranged in the control box 3, the switching power supply supplies power to the composite refrigeration liquefied natural gas liquefaction processing device, the output end of the switching power supply is electrically connected with the power supply module, the power supply module is connected with a power supply main switch through a circuit, and the control module is electrically connected with the power supply module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit, the liquid level sensor 705, the humidity sensor 808, the air pressure sensor 706 and the distance sensor 1208 are electrically connected with the control module, and the first driving motor 906, the water pump 1203, the first air pump 702, the second air pump 801 and the third air pump 806 are connected with the control module through peripheral circuits.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. The liquefaction treatment device for the liquefied natural gas by composite refrigeration is characterized by comprising a base (1), a shell (2), a seal tank (4), a natural gas inlet pipe (5), a condensation tank (6), an air exhaust assembly (7), a condensation assembly (8), a drainage assembly (9) and a water injection assembly (12), wherein the top of the base (1) is connected with the shell (2), the seal tank (4) is connected to the middle part in the shell (2), a water outlet is formed in the bottom of the seal tank (4), the natural gas inlet pipe (5) is connected to one side of the top of the seal tank (4), external natural gas enters from the natural gas inlet pipe (5), the condensation tank (6) is connected to the upper side in the shell (2), the air exhaust assembly (7) for pumping the natural gas into the condensation tank (6) is installed on one side in the shell (2), the air extraction assembly (7) is connected with the seal tank (4) and the condensation box (6), the condensation assembly (8) for cooling natural gas is arranged at the upper part in the condensation box (6), the drainage assembly (9) for draining water in the seal tank (4) is arranged at the lower part of the seal tank (4), and the water injection assembly (12) for adding water in the seal tank (4) is arranged at one side in the shell (2).
2. The composite refrigeration liquefied natural gas liquefaction processing device according to claim 1, wherein the air extraction assembly (7) comprises a first support frame (701), a first air pump (702), a first air extraction pipe (703), a first one-way air outlet pipe (704), a liquid level sensor (705) and an air pressure sensor (706), the first support frame (701) is connected to one side in the housing (2), the first air pump (702) is installed on the first support frame (701), the first air extraction pipe (703) is connected to the bottom of the first air pump (702), the sealing tank (4) is penetrated through the bottom of the first air extraction pipe (703), the first one-way air outlet pipe (704) is connected to the top of the first air pump (702), the first one-way air outlet pipe (704) is connected to the condensation tank (6), and the liquid level sensor(s) (for detecting the liquid level of water in the sealing tank (4) is arranged on the upper portion of one side in the sealing tank (4) ((704) 705) The upper portion in the condensation box (6) is provided with the air pressure sensor (706) for detecting the air pressure in the condensation box (6).
3. The composite refrigeration liquefied natural gas liquefaction processing device according to claim 2, wherein the condensation assembly (8) comprises a second air pump (801), a first air pipe (802), a refrigeration pipe (803), a condensation pipe (804), a second one-way air outlet pipe (805), a third air pump (806), an air outlet pipe (807) and a humidity sensor (808), the first air pipe (802) is symmetrically connected to the top of the condensation tank (6), the second air pump (801) is connected between the tops of the first air pipes (802), the refrigeration pipes (803) are arranged on both sides of the condensation tank (6), the condensation pipes (804) are symmetrically connected between the refrigeration pipes (803), a partition plate is connected to the middle of the condensation tank (6) and separates the two condensation pipes (804), the second one-way air outlet pipe (805) is connected to one side of the condensation tank (6), the second one-way air outlet pipe (805) is connected with a third air pump (806), the third air pump (806) is connected with an exhaust pipe (807), the exhaust pipe (807) penetrates through the shell (2), and a partition plate in the middle of the condensation box (6) is symmetrically connected with a humidity sensor (808) used for detecting the humidity in the condensation box (6).
4. The composite refrigeration liquefied natural gas liquefaction treatment device according to claim 3, wherein the drainage assembly (9) comprises a first baffle (901), a drainage pipe (902), a first movable frame (903), a first rack (904), a first rotating rod (905), a first driving motor (906), a first gear (907) and a first guide sleeve (908), the first baffle (901) is slidably disposed at the lower side of the sealed tank (4), the first movable frame (903) is connected to the bottom end of the first baffle (901), the first rack (904) is disposed at one inner side of the first movable frame (903), the drainage pipe (902) is connected to the bottom of the sealed tank (4), the first driving motor (906) is mounted at one side of the sealed tank (4), and the first rotating rod (905) is rotatably disposed at the lower inner portion of the sealed tank (4), the first rotating rod (905) is connected with an output shaft of the first driving motor (906), the first gear (907) is connected to the middle of the first rotating rod (905), the first gear (907) is meshed with the first rack (904), the first guide sleeve (908) is symmetrically connected to the inner lower portion of the sealing tank (4), and the first guide sleeve (908) is connected with the first movable frame (903) in a sliding mode.
5. The composite refrigeration liquefied natural gas liquefaction processing device according to claim 4, wherein the water injection assembly (12) comprises a second support frame (1201), a water tank (1202), a water pump (1203), a water pumping pipe (1204), a first water inlet pipe (1205), a second water inlet pipe (1206), a filter (1207) and a distance sensor (1208), the second support frame (1201) is connected to one side in the housing (2), the water tank (1202) is arranged on one side of the second support frame (1201), the water pump (1203) is installed on the upper portion of one side of the water tank (1202), the water pumping pipe (1204) is connected to the bottom of the water pump (1203), the water pumping pipe (1204) is communicated with the lower portion of the water tank (1202), the first water inlet pipe (1205) is connected to the upper portion of the water pump (1203), and the first water inlet pipe (1205) is communicated with the upper portion of the seal tank (4), water tank (1202) lower part with be connected with between seal pot (4) lower part second inlet tube (1206), install second inlet tube (1206) one side filter (1207), one side lower part is equipped with in seal pot (4) distance sensor (1208).
6. The composite refrigeration liquefied natural gas liquefaction processing device according to claim 5, further comprising a control assembly (10), wherein the control assembly (10) comprises a first gas inlet pipe (1001), a ball valve (1002), a second gear (1003), a second guide sleeve (1004), a U-shaped rod (1005), a first spring (1006) and a second rack (1007), the first gas inlet pipe (1001) is connected to one side of the natural gas inlet pipe (5), the ball valve (1002) is rotatably arranged on the first gas inlet pipe (1001), the second gear (1003) is connected to both sides of the ball valve (1002), the second guide sleeve (1004) is symmetrically connected to one side of the sealed tank (4), the U-shaped rod (1005) is slidably arranged between the second guide sleeves (1004), and the first spring (1006) is symmetrically connected between the U-shaped rod (1005) and the second guide sleeve (1004), the first spring (1006) is wound on the U-shaped rod (1005), the top of the U-shaped rod (1005) is symmetrically connected with the second rack (1007), and the second rack (1007) is meshed with the second gear (1003).
7. The composite refrigeration liquefied natural gas liquefaction processing device according to claim 6, further comprising a fixing assembly (11), wherein the fixing assembly (11) comprises a first guide rod (1101), a first slide rod (1102), a second spring (1103), a movable clamping rod (1104), a second guide rod (1105), a second movable frame (1106), a floating ball (1107), a contact frame (1108) and a contact rod (1109), the first guide rod (1101) is symmetrically connected to one side inside the sealed tank (4), the first slide rod (1102) is slidably arranged between the first guide rods (1101), the second spring (1103) is symmetrically connected between the first slide rod (1102) and the sealed tank (4), the second spring (1103) is wound on the first guide rod (1101), the movable clamping rod (1104) is arranged in the middle of the first slide rod (1102), one side symmetry is equipped with in sealed tank (4) second guide arm (1105), slidingtype is equipped with between second guide arm (1105) second adjustable shelf (1106), be equipped with on second adjustable shelf (1106) floater (1107), second adjustable shelf (1106) bottom is connected with contact frame (1108), and U type pole (1005) one side is connected with contact lever (1109).
8. The composite refrigeration liquefied natural gas liquefaction processing device according to claim 7, further comprising a control box (3), wherein the control box (3) is disposed on one side of the bottom in the housing (2), a switching power supply, a control module and a power supply module are installed in the control box (3), the switching power supply supplies power to the composite refrigeration liquefied natural gas liquefaction processing device, an output end of the switching power supply is electrically connected with the power supply module, the power supply module is connected with a power supply main switch through a line, and the control module is electrically connected with the power supply module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit, the liquid level sensor (705), the humidity sensor (808), the air pressure sensor (706) and the distance sensor (1208) are electrically connected with the control module, and the first driving motor (906), the water pump (1203), the first air pump (702), the second air pump (801) and the third air pump (806) are connected with the control module through peripheral circuits.
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|---|---|---|---|
| CN202110992194.8A CN113776276A (en) | 2021-08-27 | 2021-08-27 | Composite refrigeration liquefied natural gas liquefaction processing device |
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| CN202110992194.8A CN113776276A (en) | 2021-08-27 | 2021-08-27 | Composite refrigeration liquefied natural gas liquefaction processing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508898A (en) * | 2022-01-27 | 2022-05-17 | 赖世安 | Chemical industry is with cold box precooling equipment of natural gas liquefaction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508898A (en) * | 2022-01-27 | 2022-05-17 | 赖世安 | Chemical industry is with cold box precooling equipment of natural gas liquefaction |
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Application publication date: 20211210 |