CN115234825A - Remote control's vertical storage tank of LNG - Google Patents

Remote control's vertical storage tank of LNG Download PDF

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Publication number
CN115234825A
CN115234825A CN202210864075.9A CN202210864075A CN115234825A CN 115234825 A CN115234825 A CN 115234825A CN 202210864075 A CN202210864075 A CN 202210864075A CN 115234825 A CN115234825 A CN 115234825A
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CN
China
Prior art keywords
storage tank
tank body
lng
pipeline
remotely controlled
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Pending
Application number
CN202210864075.9A
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Chinese (zh)
Inventor
汪坤
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Hubei Jinsheng Natural Gas Co ltd
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Hubei Jinsheng Natural Gas Co ltd
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Priority to CN202210864075.9A priority Critical patent/CN115234825A/en
Publication of CN115234825A publication Critical patent/CN115234825A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/08—Mounting arrangements for vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/126—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for large storage containers for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0337—Granular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0391—Thermal insulations by vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/036—Control means using alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0408—Level of content in the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0439—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/07—Actions triggered by measured parameters
    • F17C2250/072—Action when predefined value is reached
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention discloses a remote-control LNG vertical storage tank, which comprises an outer storage tank body and an inner storage tank body, wherein the bottom of the inner wall of the outer storage tank body is fixedly provided with the inner storage tank body, a vacuum cavity is arranged between the outer storage tank body and the inner storage tank body, the top of the inner side wall of the inner storage tank body is fixedly provided with a temperature transmitter and a pressure transmitter, the top of the inner wall of the inner storage tank body is fixedly provided with a liquid level sensor, the middle of the top of the outer storage tank body is fixedly provided with a balance pump, the middle of the bottom of the outer storage tank body is fixedly provided with a control box, and one side of the inner wall of the control box is fixedly provided with a PLC.

Description

Remote control's vertical storage tank of LNG
Technical Field
The invention relates to the technical field of LNG storage tanks, in particular to a remote-control LNG vertical storage tank.
Background
LNG is a short term for liquefied natural gas, and its main component is methane, which is known as the cleanest fossil energy on earth. The LNG production process is to purify the natural gas produced in the gas field, to compress and cool the natural gas to its condensation point (-161.5 ℃) to become liquid through a series of ultra-low temperature processes, and the liquefied natural gas is usually stored in a low-temperature vertical storage tank or a bedroom storage tank at-161.5 ℃ and about 0.1 MPa. The safety of LNG storage is directly affected by the structural strength and quality of the LNG storage tanks. The vertical storage tank of common LNG generally includes the cylindrical jar body of vertical setting, and the bottom rigid coupling of the jar body has the landing leg that supports in subaerial, and the export has been seted up to the bottom of the jar body, and root valve is installed in the exit.
Most of the existing LNG vertical storage tanks can only be operated and managed on site, so that managers cannot check the storage state of the vertical storage tanks conveniently at any time, remote control cannot be carried out at the first time under emergency, and certain potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a remote-control LNG vertical storage tank, and the remote-control LNG vertical storage tank is used for solving the problems that most of the existing LNG vertical storage tanks in the background technology can only be operated and managed on site, managers cannot conveniently check the storage state of the vertical storage tank at any time, remote control cannot be carried out at the first time in an emergency, and certain potential safety hazards exist.
In order to achieve the purpose, the invention provides the following technical scheme: a remote control LNG vertical storage tank comprises an outer storage tank body and an inner storage tank body, wherein the bottom of the inner wall of the outer storage tank body is fixedly provided with the inner storage tank body, a vacuum cavity is arranged between the outer storage tank body and the inner storage tank body, the top of the inner side wall of the inner storage tank body is fixedly provided with a temperature transmitter and a pressure transmitter, the top of the inner wall of the inner storage tank body is fixedly provided with a liquid level sensor, the middle of the top of the outer storage tank body is fixedly provided with a balance pump, the middle of the bottom of the outer storage tank body is fixedly provided with a control box, one side of the inner wall of the control box is fixedly provided with a PLC controller, the inner side wall of the control box is fixedly provided with a pressure display, a temperature display and a control panel, and the surface of the control panel is fixedly provided with an Internet of things touch screen and an on-off switch, the top fixed mounting of control box has the alarm, adopt double-walled structure, and be equipped with vacuum insulation chamber between inner tank and outer jar, the thermal-insulated is carried out to the cooperation thermal-insulated powder layer, thereby can effectively reduce the negative effects that external high temperature produced to the liquefied natural gas of depositing, and can detect the pressure of LNG storage tank constantly, important data such as temperature, the operating condition of storage tank is looked over at any time to the staff of being convenient for, have the scene and control two kinds of control modes with remote control, and possess the function of scene warning suggestion, be convenient for under emergency, the staff can pass through the user end the very first time or carry out the frequent operation at the scene and handle, improve the ageing of staff's work, the security of use is improved.
Preferably, the periphery of the inner storage tank body is fixedly provided with a heat insulation powder layer positioned in the vacuum cavity, and the periphery of the heat insulation powder layer is fixedly provided with geotechnical cloth, so that the heat insulation performance is excellent.
Preferably, one side of the bottom end of the outer storage tank body is fixedly provided with a vacuum pipeline communicated with the inside of the vacuum cavity, and the middle part of the vacuum pipeline is fixedly provided with a vacuum valve, so that the storage tank is conveniently vacuumized.
Preferably, the air inlet of the balance pump passes through the fixed intercommunication in the inside of the pipeline and the interior storage tank body, the fixed intercommunication in gas outlet of balance pump has the balance pipeline, the fixed protective frame that is provided with in periphery on the external storage tank body top can be according to the internal atmospheric pressure condition of interior storage tank, and the gasification gas in the LNG vertical storage tank is taken out automatically or the tonifying qi work is carried out to the internal atmospheric pressure of storage tank in the balance, control atmospheric pressure is in safe reasonable within range all the time, thereby improves the security of vertical storage tank.
Preferably, the top fixed mounting of vacuum chamber inner wall has gas detector, gas detector and PLC controller electric connection can report to the police the suggestion the very first time when the storage tank is lost heart, improve the security of using.
Preferably, the periphery of the bottom end of the outer storage tank body is fixedly provided with three uniformly distributed supporting foot frames, so that field workers can conveniently climb up to overhaul.
Preferably, one side top-down of outer storage tank body is fixed and is provided with a plurality of evenly distributed's the frame of climbing, and is a plurality of the peripheral of climbing the frame is fixed and is provided with and prevents weighing down the guardrail, the maintenance of being convenient for.
Preferably, the positive top of outer storage tank body is fixed be provided with the internal communicating liquid pipeline of interior storage tank, the fixed communicating drain line with the internal communicating liquid pipeline of interior storage tank that is provided with in bottom of outer storage tank body, the middle part fixed mounting of drain line has the electromagnetism flowing back valve, electromagnetism flowing back valve and PLC controller electric connection are convenient for under emergency, and the staff can pass through the user end or carry out the frequent operation processing at the scene very first time, improves the ageing of staff's work, improves the security of using.
Preferably, temperature transmitter, pressure transmitter, level sensor, alarm and thing networking touch screen all with PLC controller electric connection, the PLC controller can detect the security that the storage tank used constantly to important parameters such as the interior pressure of storage tank, temperature through on-off switch and external power supply electric connection.
Compared with the prior art, the invention has the beneficial effects that:
1. the LNG vertical storage tank adopts a double-wall structure, a vacuum heat insulation cavity is arranged between the inner tank and the outer tank, and heat insulation is carried out by matching with the heat insulation powder layer, so that the negative influence of external high temperature on stored liquid natural gas can be effectively reduced, important data such as pressure, temperature and the like of the LNG storage tank can be detected constantly, and workers can check the working state of the storage tank at any time;
2. the intelligent control system has two control modes of field control and remote control, has a field alarm prompting function, and is convenient for workers to perform frequent operation processing through a user terminal or on the field at the first time under an emergency condition, so that the working timeliness of the workers is improved, and the use safety is improved;
3. the top end of the storage tank is provided with the balance pump, so that the gasified gas in the LNG vertical storage tank can be automatically pumped out or air supplement can be performed according to the air pressure condition in the inner storage tank, the air pressure in the inner storage tank is balanced, the air pressure is controlled to be always in a safe and reasonable range, and the safety of the vertical storage tank is improved;
4. the LNG vertical storage tank is stable and reliable, and is convenient to maintain and overhaul.
Drawings
FIG. 1 is a schematic structural view of a vertical storage tank according to the present invention;
FIG. 2 is a front cross-sectional view of the vertical storage tank of the present invention;
FIG. 3 is a schematic view of the structure of the inner tank of the present invention;
FIG. 4 is a schematic view of the control box of the present invention;
FIG. 5 is a control block diagram of the present invention;
fig. 6 is an enlarged view of part a of the present invention.
In the figure: 1. an outer storage tank body; 2. a protective frame; 3. a balancing pipeline; 4. a liquid discharge conduit; 5. a vacuum line; 6. a supporting foot rest; 7. a control box; 8. climbing a frame; 9. the anti-falling guardrail is arranged on the anti-falling guardrail; 10. a liquid injection pipeline; 11. an inner storage tank body; 12. a vacuum chamber; 13. a liquid level sensor; 14. a balancing pump; 15. a temperature transmitter; 16. a pressure transmitter; 17. an electromagnetic drain valve; 18. a vacuum valve; 19. a layer of thermally insulating powder; 20. geotextile; 21. displaying a pressure meter; 22. a PLC controller; 23. an Internet of things touch screen; 24. a control panel; 25. a gas detector; 26. displaying the temperature; 27. an alarm.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Referring to fig. 1-6, the invention provides a remote-controlled LNG vertical storage tank, which comprises an outer storage tank body 1 and an inner storage tank body 11, wherein the inner storage tank body 11 is fixedly arranged at the bottom of the inner wall of the outer storage tank body 1, a vacuum cavity 12 is arranged between the outer storage tank body 1 and the inner storage tank body 11, a temperature transmitter 15 and a pressure transmitter 16 are fixedly arranged at the top of the inner wall of the inner storage tank body 11, a liquid level sensor 13 is fixedly arranged at the top of the inner wall of the inner storage tank body 11, a balance pump 14 is fixedly arranged in the middle of the top end of the outer storage tank body 1, a control box 7 is fixedly arranged in the middle of the bottom end of the outer storage tank body 1, a PLC controller 22 is fixedly arranged at one side of the inner wall of the control box 7, a pressure display 21, a temperature display 26 and an operation panel 24 are fixedly arranged on the inner wall of the control box 7, a touch screen 23 and an on-off switch of the internet of things are fixedly arranged on the surface of the operation panel 24, and an alarm 27 is fixedly arranged at the top end of the control box 7, the periphery of the inner tank body 11 is fixedly provided with a heat insulation powder layer 19 positioned in the vacuum cavity 12, the periphery of the heat insulation powder layer 19 is fixedly provided with geotextile 20, the top of the front surface of the outer tank body 1 is fixedly provided with a liquid injection pipeline 10 communicated with the interior of the inner tank body 11, the bottom of the outer tank body 1 is fixedly provided with a liquid discharge pipeline 4 communicated with the interior of the inner tank body 11, the middle part of the liquid discharge pipeline 4 is fixedly provided with an electromagnetic liquid discharge valve 17, the electromagnetic liquid discharge valve 17 is electrically connected with a PLC (programmable logic controller) 22, the temperature transmitter 15, the pressure transmitter 16, the liquid level sensor 13, the alarm 27 and the touch screen 23 of the Internet of things are all electrically connected with the PLC 22, the PLC 22 is electrically connected with an external power supply through an on-off switch, a double-wall structure is adopted, the vacuum cavity 12 is arranged between the inner tank and the outer tank, and is matched with the heat insulation powder layer 19 for heat insulation, thereby can effectively reduce the negative effects that external high temperature produced the liquefied natural gas of depositing to can detect important data such as pressure, the temperature of LNG storage tank constantly, the operating condition of the storage tank is looked over at any time to the staff of being convenient for.
A vacuum pipeline 5 communicated with the inside of the vacuum chamber 12 is fixedly arranged on one side of the bottom end of the outer storage tank body 1, a vacuum valve 18 is fixedly arranged in the middle of the vacuum pipeline 5, an air inlet of the balance pump 14 is fixedly communicated with the inside of the inner storage tank body 11 through a pipeline, an air outlet of the balance pump 14 is fixedly communicated with a balance pipeline 3, a protection frame 2 is fixedly arranged on the periphery of the top end of the outer storage tank body 1, a gas detector 25 is fixedly arranged on the top of the inner wall of the vacuum chamber 12, the gas detector 25 is electrically connected with the PLC 22, when the internal pressure of the inner storage tank body 11 is detected to be too high, the balance pump 14 can continuously pump out the gasified natural gas in the inner storage tank body 11 to reduce the internal pressure of the inner storage tank body 11 to a reasonable level, and when the internal pressure of the inner storage tank body 11 is detected to be too low, the balance the internal pressure of the inner storage tank body 11 by the balance pump 14 can fill the gasified gas in the external natural gas pipeline into the inner storage tank body 11 to keep the reasonable range, and improve the safety of the vertical LNG storage tank.
The periphery of the bottom end of the outer tank body 1 is fixedly provided with three evenly distributed supporting foot frames 6, one side of the outer tank body 1 is fixedly provided with a plurality of evenly distributed climbing frames 8 from top to bottom, the periphery of the plurality of climbing frames 8 is fixedly provided with anti-falling guardrails 9, and the LNG vertical tank is stable and reliable and is convenient to maintain and overhaul.
When the embodiment of the application is used: after the LNG vertical storage tank is stably installed, a vacuum valve 18 is firstly opened, an external vacuum pump is communicated with a vacuum pipeline 5, a vacuum test port is further arranged on one side of the vacuum pipeline 5, the inside of a vacuum cavity 12 is firstly vacuumized through the vacuum pipeline 5, after the vacuumization work is finished, the vacuum valve 18 is closed, the vacuum degree in the vacuum cavity 12 is detected through the vacuum test port, after a detected result reaches the standard, a balance pipeline 3 is communicated with an external natural gas return pipe, liquefied natural gas can be injected into an inner storage tank body 11 through a liquid injection pipeline 10, a liquid level sensor 13 can constantly detect the injection liquid level in the inner storage tank body 11 in the injection process, the temperature and the pressure in the tank body can be constantly detected by a temperature transmitter 15 and a pressure transmitter 16, a field worker can constantly check the internal state information of the vertical storage tank through an Internet of things touch screen 23, the management personnel can check the state information of the inner part of the tank body constantly through APP at the mobile phone end, when the internal pressure of the inner storage tank body 11 is detected to be too high, the balance pump 14 can continuously pump out the gasified natural gas in the inner storage tank body 11 to reduce the air pressure in the inner storage tank body 11 to a reasonable level, when the internal pressure of the inner storage tank body 11 is detected to be too low, the balance pump 14 can fill the gasified gas in the external natural gas pipeline into the inner storage tank body 11 to further balance the air pressure in the inner storage tank body 11 to be always in a reasonable range, the LNG vertical storage tank adopts a double-wall structure, a vacuum cavity 12 is arranged between the inner tank and the outer tank and is matched with a heat insulation powder layer 19 for heat insulation, so that the negative influence of external high temperature on the stored liquid natural gas can be effectively reduced, and important data such as the pressure and the temperature of the LNG storage tank can be detected constantly, and the working state of the storage tank can be checked by the working personnel at any time, the vertical storage tank of LNG is climbed regularly to the frame 8 accessible of site work personnel accessible, maintains the maintenance to the storage tank.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (9)

1. The utility model provides a remote control's vertical storage tank of LNG, includes the outer storage tank body (1) and the interior storage tank body (11), its characterized in that: the bottom of outer storage tank body (1) inner wall is fixed and is provided with interior storage tank body (11), be equipped with vacuum cavity (12) between outer storage tank body (1) and the interior storage tank body (11), the top fixed mounting of the interior storage tank body (11) inside wall has temperature transmitter (15) and pressure transmitter (16), the top fixed mounting of the interior storage tank body (11) inner wall has level sensor (13), the middle part fixed mounting on outer storage tank body (1) top has balancing pump (14), the middle part fixed mounting of the outer storage tank body (1) bottom has control box (7), one side fixed mounting of control box (7) inner wall has PLC controller (22), the inside wall fixed mounting of control box (7) has and pressure shows table (21), temperature shows table (26) and controls panel (24), the fixed surface that controls panel (24) installs thing networking touch screen (23) and start and stop switch, the top fixed mounting of control box (7) has alarm (27).
2. A remotely controlled LNG vertical storage tank as claimed in claim 1, wherein: the heat insulation powder layer (19) positioned in the vacuum cavity (12) is fixedly arranged on the periphery of the inner storage tank body (11), and the geotextile (20) is fixedly arranged on the periphery of the heat insulation powder layer (19).
3. A remotely controlled LNG vertical storage tank as claimed in claim 1, wherein: one side of the bottom end of the outer storage tank body (1) is fixedly provided with a vacuum pipeline (5) communicated with the inside of the vacuum cavity (12), and the middle part of the vacuum pipeline (5) is fixedly provided with a vacuum valve (18).
4. A remotely controlled vertical storage tank for LNG as claimed in claim 1, wherein: the air inlet of the balance pump (14) is fixedly communicated with the interior of the inner tank body (11) through a pipeline, the air outlet of the balance pump (14) is fixedly communicated with a balance pipeline (3), and a protective frame (2) is fixedly arranged on the periphery of the top end of the outer tank body (1).
5. A remotely controlled vertical storage tank for LNG as claimed in claim 1, wherein: the top of the inner wall of the vacuum cavity (12) is fixedly provided with a gas detector (25), and the gas detector (25) is electrically connected with the PLC (22).
6. A remotely controlled LNG vertical storage tank as claimed in claim 1, wherein: the periphery of the bottom end of the outer storage tank body (1) is fixedly provided with three uniformly distributed supporting foot frames (6).
7. A remotely controlled LNG vertical storage tank as claimed in claim 1, wherein: one side top-down of outer storage tank body (1) is fixed and is provided with a plurality of evenly distributed's the frame of climbing (8), and is a plurality of climb the fixed guardrail (9) that prevents weighing down that is provided with in the periphery of frame (8).
8. A remotely controlled LNG vertical storage tank as claimed in claim 1, wherein: the liquid injection device is characterized in that a liquid injection pipeline (10) communicated with the inside of the inner storage tank body (11) is fixedly arranged at the top of the front face of the outer storage tank body (1), a liquid discharge pipeline (4) communicated with the inside of the inner storage tank body (11) is fixedly arranged at the bottom of the outer storage tank body (1), an electromagnetic liquid discharge valve (17) is fixedly arranged in the middle of the liquid discharge pipeline (4), and the electromagnetic liquid discharge valve (17) is electrically connected with a PLC (programmable logic controller) (22).
9. A remotely controlled LNG vertical storage tank as claimed in claim 1, wherein: temperature transmitter (15), pressure transmitter (16), level sensor (13), alarm (27) and thing networking touch screen (23) all with PLC controller (22) electric connection, PLC controller (22) are through on-off switch and external power source electric connection.
CN202210864075.9A 2022-07-21 2022-07-21 Remote control's vertical storage tank of LNG Pending CN115234825A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN206395215U (en) * 2016-12-30 2017-08-11 奥美克斯（天津）低温气体设备有限公司 A kind of LNG low-temperature liquid storage tanks
CN206429863U (en) * 2016-12-21 2017-08-22 新兴能源装备股份有限公司 A kind of natural gas in low temperature storage tank for being easy to safeguard
CN107514541A (en) * 2017-09-26 2017-12-26 北京泰恩博能燃气设备技术有限公司 Floating Liquefied Natural Gas stores and gasification installation, control system and control method
CN207262033U (en) * 2017-08-31 2018-04-20 昆山市恒安工业气体有限公司 A kind of LNG tank installs decrease temperature and pressure device
CN209943992U (en) * 2019-04-24 2020-01-14 江苏鼎程新能源科技有限公司 Regional control system of LNG storage tank
CN212338898U (en) * 2020-05-25 2021-01-12 锦州安燃高能切割气有限公司 Vertical LNG storage tank for natural gas
CN216623058U (en) * 2021-11-03 2022-05-27 京鼎工程建设有限公司 Low-temperature storage tank with remote monitoring and alarming functions

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202442107U (en) * 2012-01-12 2012-09-19 张家港韩中深冷科技有限公司 Independent liquefied natural gas supply device
CN106499951A (en) * 2015-09-06 2017-03-15 天津宏昊源科技有限公司 A kind of liquefied natural gas carrier vehicle with pressure monitor function
CN206429863U (en) * 2016-12-21 2017-08-22 新兴能源装备股份有限公司 A kind of natural gas in low temperature storage tank for being easy to safeguard
CN206395215U (en) * 2016-12-30 2017-08-11 奥美克斯（天津）低温气体设备有限公司 A kind of LNG low-temperature liquid storage tanks
CN207262033U (en) * 2017-08-31 2018-04-20 昆山市恒安工业气体有限公司 A kind of LNG tank installs decrease temperature and pressure device
CN107514541A (en) * 2017-09-26 2017-12-26 北京泰恩博能燃气设备技术有限公司 Floating Liquefied Natural Gas stores and gasification installation, control system and control method
CN209943992U (en) * 2019-04-24 2020-01-14 江苏鼎程新能源科技有限公司 Regional control system of LNG storage tank
CN212338898U (en) * 2020-05-25 2021-01-12 锦州安燃高能切割气有限公司 Vertical LNG storage tank for natural gas
CN216623058U (en) * 2021-11-03 2022-05-27 京鼎工程建设有限公司 Low-temperature storage tank with remote monitoring and alarming functions

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