CN110803404B - Integrated nitrogen injection oxygen control fireproof intelligent device - Google Patents
Integrated nitrogen injection oxygen control fireproof intelligent device Download PDFInfo
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- CN110803404B CN110803404B CN201911282631.6A CN201911282631A CN110803404B CN 110803404 B CN110803404 B CN 110803404B CN 201911282631 A CN201911282631 A CN 201911282631A CN 110803404 B CN110803404 B CN 110803404B
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 73
- 238000002347 injection Methods 0.000 title claims abstract description 48
- 239000007924 injection Substances 0.000 title claims abstract description 48
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000001301 oxygen Substances 0.000 title claims abstract description 25
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 152
- 238000001514 detection method Methods 0.000 claims abstract description 117
- 239000000203 mixture Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000011259 mixed solution Substances 0.000 claims abstract description 17
- 230000002265 prevention Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 133
- 239000003595 mist Substances 0.000 claims description 50
- 238000000926 separation method Methods 0.000 claims description 22
- 238000007667 floating Methods 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 17
- 239000003960 organic solvent Substances 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000008213 purified water Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000010223 real-time analysis Methods 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 56
- 239000003208 petroleum Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 206010000369 Accident Diseases 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/38—Means for reducing the vapour space or for reducing the formation of vapour within containers
- B65D90/44—Means for reducing the vapour space or for reducing the formation of vapour within containers by use of inert gas for filling space above liquid or between contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets
- B65D88/42—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to the technical field of fire prevention and extinguishment, and particularly discloses an integrated nitrogen injection oxygen control fire prevention intelligent device which comprises a control module, a detection module, a nitrogen injection module and a sealing module, wherein a constant flow pump is arranged between an air suction pipe and a detection bottle; the density of the mixed solution is measured through the liquid density sensor, the total amount of the oil-gas mixture entering the detection bottle in a set unit time of the constant flow pump is set, and the density of the sampled mixed solution is compared with the set density in a normal state, so that the method is more accurate compared with a traditional method for directly measuring the gas concentration of the oil-gas mixture.
Description
Technical Field
The invention relates to the technical field of fire prevention and extinguishment, in particular to an integrated nitrogen injection oxygen control fireproof intelligent device.
Background
Crude oil has a plurality of storage devices, and an external floating roof type petroleum storage tank is the most mature petroleum storage tank which is most widely used in the world at present. There are primary and secondary sealing devices between the floating top edge of the external floating top type petroleum storage tank and the inner wall of the tank body, and because there is always a condition of loose sealing, the oil gas in the primary and secondary sealing space is mixed with the oxygen in the air to form inflammable and explosive oil gas mixture. When the oil-gas mixture reaches the explosion limit under the influence of factors such as terrorist attack, spark, static electricity, earthquake, spark, lightning and the like, the explosion is extremely easy to be initiated. The large floating roof petroleum storage tanks in various countries in the world have fire and explosion events for many times, so that huge casualties and property loss are caused, and serious environmental pollution is generated.
At present, fire-fighting means of large-scale petroleum storage tanks mainly adopt foam and water to carry out fire accident rescue, and a gas fire-extinguishing system is installed on a large-scale oil tank in a few developed countries, but the means are limited to post emergency treatment and do not consider pre-prevention. Therefore, in order to realize early monitoring and prevention of fire accident symptoms of the oil tank, protection on the oil tank by adopting an active inerting technology is urgent. The Chinese patent (CN 201310144484.2, grant bulletin date 2015, 6 and 10) discloses an oil gas safety active protection system and a protection method thereof, which particularly disclose a technology for sealing an oil tank by using an inert gas medium, thereby greatly avoiding the risk of fire disaster of an oil storage tank. There are still problems such as the need to lay long gas-liquid pipelines, resulting in high equipment cost, and the need for all-weather monitoring and operation by personnel, cumbersome use, and insufficient automation and intelligence.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the integrated nitrogen injection oxygen control fireproof intelligent device, and the design scheme has the advantages of low cost, simpler structure, effective reduction of operation difficulty and operation steps of operators and realization of automation and intellectualization of equipment.
The invention relates to an integrated nitrogen injection oxygen control fireproof intelligent device, which comprises a control module, a detection module, a nitrogen injection module and a sealing module, wherein the sealing module comprises a floating roof, a primary seal, a secondary seal and an oil gas space, the floating roof is arranged at the top of a floating roof type oil storage tank, the floating roof is sealed by the primary seal and the secondary seal in sequence, the oil gas space exists between the primary seal and the secondary seal, the detection module carries out density detection on gas in the oil gas space, the detection module is in communication connection with the control module, the detection module feeds back the detected density data to the control module, the control module realizes real-time analysis and monitoring, the control module is connected with the control module to control the operation of the nitrogen injection module, the detection module comprises a chip assembly, a liquid density sensor, an operation panel, a storage battery pack, an equipment box, a detection bottle, an oil gas suction pipe, a solvent box and a water box, one end of the oil gas suction pipe is inserted into the oil gas space, the other end of the oil gas suction pipe is inserted into the detection bottle and goes deep into the bottom of the detection bottle, a constant flow pump is arranged between the gas suction pipe and the detection bottle, a motor-driven stirrer is fixedly arranged in the detection bottle, the detection bottle is filled with an organic solvent, the bottom of the detection bottle is communicated with an external wastewater treatment device, the detection bottle is communicated with a solvent tank, a water spray head is further arranged in the middle of the side wall of the detection bottle, the water spray head is communicated with a water tank, a water pump is arranged between the solvent tank and the detection bottle and between the water tank and the detection bottle, a liquid density sensor is inserted into the detection bottle and goes deep into the organic solvent, a chip component is respectively electrically connected with the liquid density sensor, an operation panel and a storage battery, and the chip component can transmit density data of a mixed solution in the detection bottle detected by the liquid density sensor to a control module for data comparison, and the chip component, the operation panel and the storage battery, the detection bottle, the constant flow pump, the water pump, the solvent tank and the water tank are all fixedly arranged in the equipment box.
The invention relates to an integrated nitrogen injection oxygen control fireproof intelligent device, wherein a detection module further comprises a separation device, the separation device is communicated with the bottom of a detection bottle, the separation device can separate oil and gas from a mixture of oil and gas, an organic solvent and water, the oil and gas separated by the separation device is discharged to the outside, and the organic solvent and the water separated by the separation device are respectively circulated back to a solvent tank and a water tank.
The invention relates to an integrated nitrogen injection oxygen control fireproof intelligent device, wherein a control module comprises a control machine room, a control center and an intelligent switch controller, wherein the control center, the intelligent switch controller, a high-pressure water pump and a selection valve are fixedly arranged in the control machine room, the control center is communicated with a chip assembly, the control center is electrically connected with the intelligent switch controller, the intelligent switch controller is electrically used for controlling the high-pressure water pump and the selection valve, and the control center can receive data transmitted by the chip assembly and compare the data with data set by the control center.
The invention relates to an integrated nitrogen injection oxygen control fireproof intelligent device, wherein a nitrogen injection module comprises a nitrogen storage tank, a water purification device, a water storage tank, a water extinguishing agent tank, an air flow pipeline, a liquid flow pipeline, a micro water mist generator and an oil gas discharge pipe, wherein the nitrogen storage tank is connected with the micro water mist generator arranged in an oil gas space through the air flow pipeline, the water storage tank is connected with the micro water mist generator through the liquid flow pipeline, the gas flow rate and the flow speed of the gas of the nitrogen storage tank are controlled through a selection valve, the water body in the water storage tank is pumped into the micro water mist generator through a high-pressure water pump, the water storage tank is connected with the water purification device, the water extinguishing agent tank is arranged between the water storage tank and the high-pressure water pump, and the oil gas space is communicated with the outside through the oil gas discharge pipe; the control module can adjust different gas-liquid ratios of the micro water mist generator by controlling the high-pressure water pump and the selection valve, wherein when the control module detects that the density of the mixed solution in the detection bottle is greater than the set density, the control module controls the micro water mist generator to spray micro water mist with nitrogen medium into the oil-gas space to dilute the oil-gas mixture in the oil-gas space so as to maintain the inert atmosphere of the oil-gas space and control the concentration of the oil-gas mixture in the oil-gas space in a safe range; when the oil-gas space needs to be cooled, the change of the water pressure and the air pressure of the micro water mist generator is adjusted by the control module, the particle size of the micro water mist is changed, and the micro water mist can be continuously sprayed to cool the oil-gas space; when fire occurs in the oil-gas space, the change of the water pressure and the air pressure of the micro water mist generator is regulated by the control module, so that the particle size of the micro water mist is increased to become fine water mist, and fire extinguishing is implemented.
The invention relates to an integrated nitrogen injection oxygen control fireproof intelligent device, wherein a filter capable of absorbing waste gas is arranged at the tail end of an oil gas discharge pipe.
The invention relates to an integrated nitrogen injection oxygen control fireproof intelligent device, wherein solar panels are respectively erected outside a control machine room and an equipment box and are respectively connected with a control center of the control machine room and a storage battery.
The invention relates to an integrated nitrogen injection oxygen control fireproof intelligent device, wherein a sealing seat is filled between an oil gas suction pipe and an oil gas space, a filter screen cover is fixedly arranged at the inner end of the sealing seat, and a dryer is arranged in the filter screen cover.
The invention relates to an integrated nitrogen injection oxygen control fireproof intelligent device, wherein a temperature sensor is fixedly arranged in a detection bottle.
According to the integrated nitrogen injection oxygen control fireproof intelligent device, multiple groups of detection modules and nitrogen injection modules can be arranged, the multiple groups of detection modules and the nitrogen injection modules are uniformly controlled by the control module, and nitrogen storage tanks of the multiple groups of nitrogen injection modules are controlled by the nitrogen master control valve.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the detection module is arranged at the top of the oil storage tank, so that the detection bottle is directly connected with the oil-gas space, the distance of the oil-gas mixture entering the detection device is shortened as much as possible, and the concentration of the oil-gas mixture can be detected more accurately and rapidly; meanwhile, after the oil-gas mixture is mixed with the organic solvent in the detection bottle, the density of the mixed solution is measured through the liquid density sensor, data are transmitted to the control center, and whether the concentration of the oil-gas mixture in the oil-gas space meets the standard is reversely pushed by comparing the density of the sampled mixed solution with the set density in a normal state, so that compared with a traditional mode of directly measuring the gas concentration of the oil-gas mixture, the method is more accurate, and meanwhile, the problem that the air pollution is easily caused by directly discharging the oil-gas mixture after the traditional mode is finished is avoided; the constant flow pump is arranged between the detection bottle and the oil-gas suction pipe, so that the total amount of the oil-gas mixture entering the detection bottle in unit time can be set through the constant flow pump by the chip assembly, the density of a mixed solution formed by dissolving the total amount of the oil-gas mixture in an organic solvent is measured, and the concentration of the total amount of the oil-gas mixture can be more accurately and reversely pushed out.
2. According to the invention, the oil gas space of each oil storage tank is provided with the plurality of groups of detection modules and the nitrogen injection module, all groups of detection modules and the nitrogen injection module of the oil storage tank are uniformly controlled by the control module, and meanwhile, the control module sets eight groups of detection modules of each oil storage tank for timing inspection, namely eight groups of detection modules are used for cyclic detection in unit time, compared with the prior art, a good inspection mechanism is formed, the occurrence of fire disaster is effectively avoided, and the purposes of automation and intellectualization are achieved; meanwhile, all the oil storage tanks can be completed by a small number of operators in one control machine room, so that the labor cost and the operation difficulty are effectively saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of a front view of a fireproof intelligent device;
FIG. 2 is a schematic diagram of a front view of a detection module structure;
fig. 3 is a schematic diagram of the front face structure of the filter.
In the figure: 1. a control module; 2. a detection module; 3. a nitrogen injection module; 4. a sealing module; 11. controlling a machine room; 12. a control center; 13. an intelligent switch controller; 14. a high pressure water pump; 15.a selection valve; 21. a chip assembly; 211. a liquid density sensor; 212. a temperature sensor; 22. an operation panel; 23. a battery pack; 24. an equipment box; 25. detecting a bottle; 26. an oil gas suction pipe; 261. a constant flow pump; 262. a water pump; 263. a sealing seat; 264. a screen cover; 27. a separation device; 28. a solvent tank; 29. a water tank; 291. a water spray head; 31. a nitrogen storage tank; 311. a nitrogen total control valve; 32. a water purifying device; 33. a water storage tank; 34. a water fire extinguishing agent tank; 35. an air flow duct; 36. a liquid flow conduit; 37. a micro mist generator; 371. an oil gas discharge pipe; 372. a filter; 41. a floating roof; 42. primary sealing; 43. secondary sealing; 44. and an oil-gas space.
Detailed Description
Various embodiments of the invention are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1-3, an integrated nitrogen injection oxygen control fireproof intelligent device comprises a control module 1, a detection module 2, a nitrogen injection module 3 and a sealing module 4, wherein the sealing module 4 comprises a floating roof 41, a primary seal 42, a secondary seal 43 and an oil gas space 44, the floating roof 41 is arranged at the top of a floating roof type oil storage tank, the floating roof 41 is sequentially sealed by the primary seal 42 and the secondary seal 43, the oil gas space 44 exists between the primary seal 42 and the secondary seal 43, the detection module 2 carries out density detection on the gas of the oil gas space 44, the detection module 2 is in communication connection with the control module 1, the detection module 2 feeds back the detected density data to the control module 1, the control module 1 realizes real-time analysis and monitoring, the control module 1 is connected with the control module 3 to operate, the detection module 2 comprises a chip assembly 21, a liquid density sensor 211, an operation panel 22, a storage battery pack 23, an equipment box 24, a detection bottle 25, an oil gas suction pipe 26, a solvent box 28 and a water box 29, one end of the oil-gas suction pipe 26 is inserted into the oil-gas space 44, the other end of the oil-gas suction pipe 26 is inserted into the detection bottle 25 and goes deep into the bottom of the detection bottle 25, a constant flow pump 261 is arranged between the oil-gas suction pipe 26 and the detection bottle 25, a motor-driven stirrer is fixedly arranged in the detection bottle 25, the detection bottle 25 is filled with organic solvent, the bottom of the detection bottle 25 is communicated with an external wastewater treatment device, the detection bottle 25 is communicated with a solvent tank 28, a water spray head 291 is further arranged in the middle of the side wall of the detection bottle 25, the water spray head 291 is communicated with a water tank 29, a water pump 262 is arranged between the solvent tank 28 and the detection bottle 25 and between the water tank 29 and the detection bottle 25, a liquid density sensor 211 is inserted into the detection bottle 25 and goes deep into the organic solvent, and a chip component 21 is electrically connected with the liquid density sensor 211, the operation panel 22 and the battery pack 23, the chip assembly 21 transmits the density data of the mixed solution in the detection bottle 25 detected by the liquid density sensor 211 to the control module 1 for data comparison, and the chip assembly 21, the operation panel 22, the battery pack 23, the detection bottle 25, the constant flow pump 261, the water pump 262, the solvent tank 28 and the water tank 29 are all fixedly arranged in the equipment box 24.
Further, the detection module 2 further includes a separation device 27, the separation device 27 is connected to the bottom of the detection bottle 25, the separation device 27 can perform oil-gas separation and oil-liquid separation on a mixture of oil gas, organic solvent and water, the oil gas separated by the separation device 27 is discharged to the outside, and the organic solvent and water separated by the separation device 27 are respectively circulated back to the solvent tank 28 and the water tank 29.
Further, the control module 1 comprises a control machine room 11, a control center 12 and an intelligent switch controller 13, the control center 12, the intelligent switch controller 13, the high-pressure water pump 14 and the selection valve 15 are fixedly arranged in the control machine room 11, the control center 12 is communicated with the chip assembly 21, the control center 12 is electrically connected with the intelligent switch controller 13, the intelligent switch controller 13 electrically controls the high-pressure water pump 14 and the selection valve 15, and the control center 12 can receive data transmitted by the chip assembly 21 and compare the data with data set by the control center.
Further, the nitrogen injection module 3 comprises a nitrogen storage tank 31, a purified water device 32, a water storage tank 33, a water fire extinguishing agent tank 34, an air flow pipeline 35, a liquid flow pipeline 36, a micro water mist generator 37 and an oil gas discharge pipe 371, wherein the nitrogen storage tank 31 is connected with the micro water mist generator 37 arranged in an oil gas space 44 through the air flow pipeline 35, the water storage tank 33 is connected with the micro water mist generator 37 through the liquid flow pipeline 36, the gas flow rate and the flow speed of the gas of the nitrogen storage tank 31 are controlled through a selector valve 15, the water body in the water storage tank 33 is pumped into the micro water mist generator 37 through a high-pressure water pump 14, the water storage tank 33 is connected with the purified water device 32, the water fire extinguishing agent tank 34 is arranged between the water storage tank 33 and the high-pressure water pump 14, and the oil gas space 44 is communicated with the outside through the oil gas discharge pipe 371; the control module 1 can adjust different gas-liquid ratios of the micro water mist generator 37 through controlling the high-pressure water pump 14 and the selector valve 15, wherein when the control module 1 detects that the density of the mixed solution in the detection bottle 25 is greater than the set density, the control module 1 controls the micro water mist generator 37 to spray micro water mist with nitrogen medium into the oil-gas space 44 to dilute the oil-gas mixture in the oil-gas space 44 so as to maintain the inert atmosphere of the oil-gas space 44 and control the concentration of the oil-gas mixture in the oil-gas space 44 in a safe range; when the oil-gas space 44 needs to be cooled, the control module 1 adjusts the change of the water pressure and the air pressure of the input micro water mist generator 37 to change the particle size of the micro water mist, and the micro water mist can be continuously sprayed to cool the oil-gas space 44; when fire occurs in the oil-gas space 44, the change of the water pressure and the air pressure of the micro mist generator 37 is regulated by the control module 1, so that the particle size of the micro mist is increased to become fine mist, and fire extinguishing is implemented.
Further, a filter 372 capable of absorbing exhaust gas is installed at the end of the oil gas discharging pipe 371.
Further, solar panels are respectively arranged outside the control machine room 11 and the equipment box 24, and are respectively connected with the control machine room 11, the control center 12 and the storage battery pack 23.
Further, a sealing seat 263 is filled between the oil gas suction pipe 26 and the oil gas space 44, a filter screen cover 264 is fixedly arranged at the inner end of the sealing seat 263, and a dryer is contained in the filter screen cover 264.
Further, a temperature sensor 212 is fixedly installed in the detection bottle 25.
Further, the detection modules 2 and the nitrogen injection modules 3 can be provided with a plurality of groups, the detection modules 2 and the nitrogen injection modules 3 are uniformly controlled by the control module 1, and the nitrogen storage tanks 31 of the nitrogen injection modules 3 are controlled by the nitrogen total control valve 311.
In the invention, the detection module 2 is arranged at the top of the oil storage tank, so that the detection bottle 25 is directly connected with the oil-gas space 44, the distance of the oil-gas mixture entering the detection device is reduced as much as possible, and the concentration of the oil-gas mixture can be detected more accurately and rapidly. Meanwhile, in order to detect more accurately, after the oil-gas mixture is mixed with the organic solvent in the detection bottle 25, the density of the mixed solution is measured by the liquid density sensor 211 and data is transmitted to the control center 12, and whether the concentration of the oil-gas mixture in the oil-gas space 44 meets the standard is reversely pushed by comparing the density of the sampled mixed solution with the set density in a normal state, so that the method is more accurate than a traditional method for directly measuring the gas concentration of the oil-gas mixture, and the problem that the oil-gas mixture is directly discharged after the traditional method is finished and air pollution is easily caused is avoided.
It should be noted that, the constant flow pump 261 is disposed between the detection bottle 25 and the oil-gas suction tube 26, so that the chip assembly 21 can set the total amount of the oil-gas mixture entering the detection bottle 25 in unit time through the constant flow pump 261, and further determine the density of the mixed solution formed by dissolving the total amount of the oil-gas mixture in the organic solvent, and further more accurately and reversely push out the concentration of the total amount of the oil-gas mixture.
In addition, since the density measurement is performed in the detection bottle 25 in the equipment box 24, when the oil-gas mixture enters the detection bottle 25, the density is inevitably changed by the influence of the temperature change, so the temperature sensor 212 is arranged in the detection bottle 25 for temperature compensation.
Meanwhile, the joint between the oil-gas suction pipe 26 and the oil-gas space 44 is sealed through the sealing seat 263, the inner end of the sealing seat 263 is provided with the filter screen cover 264, and the filter screen cover 264 is provided with the dryer, so that the moisture in the oil-gas mixture can be absorbed, and the moisture in the oil-gas mixture is prevented from entering the detection bottle 25 to be mixed, and the accurate measurement of the density of the mixed solution is influenced.
The separation device 27 can be further arranged, and oil-gas or oil-liquid separation operation is performed on the measured mixed solution through the technical principles of distillation separation or ion membrane separation, the separated oil-gas can be directly discharged to the outside due to small quantity, and the separated organic solvent and water can not greatly affect the environment, and can be recycled to the solvent tank 28 and the water tank 29 respectively, so that the resource can be effectively saved, and the good environment-friendly effect can be obtained. The motor stirrer on the detection bottle 25 is provided for more sufficient mixing; the water jet 291 and the water tank 29 are provided to clean the residue in the detection bottle 25 after one measurement, and to avoid adverse effects on the next measurement.
When the chip assembly 21 transmits the density of the oil-gas mixture of the oil-gas space 44 where the liquid density sensor 211 measures to the control center 12, the control center 12 compares the data with the set value in the normal state, and then adjusts the different gas-liquid ratios of the micro mist generator 37:
(1) When the control module 1 detects that the density of the mixed solution in the detection bottle 25 is greater than the set density, the control module 1 controls the micro mist generator 37 to spray micro mist with nitrogen medium into the oil-gas space 44, so as to dilute the oil-gas mixture in the oil-gas space 44, maintain the inerting atmosphere of the oil-gas space 44, and control the concentration of the oil-gas mixture in the oil-gas space 44 in a safe range;
(2) When the oil-gas space 44 needs to be cooled, the control module 1 adjusts the change of the water pressure and the air pressure of the input micro water mist generator 37 to change the particle size of the micro water mist, and the micro water mist can be continuously sprayed to cool the oil-gas space 44;
(3) When a fire disaster occurs in the oil-gas space 44, the control module 1 adjusts the variation of the water pressure and the air pressure input into the micro mist generator 37 to enlarge the particle size of the micro mist into fine mist, thereby realizing fire extinguishing.
In the preferred scheme, the oil gas space 44 of each oil storage tank can be provided with a plurality of groups of detection modules 2 and nitrogen injection modules 3, all groups of detection modules 2 and nitrogen injection modules 3 of all the oil storage tanks are uniformly controlled by the control module 1, and the nitrogen storage tanks 31 of all groups of nitrogen injection modules 3 of all the oil storage tanks are controlled by the nitrogen total control valve 311. Preferably, the number of the groups of the detection modules 2 and the nitrogen injection modules 3 arranged in the oil gas space 44 of each oil storage tank is eight, and meanwhile, the control module 1 sets the eight groups of the detection modules 2 of each oil storage tank to carry out timing inspection, namely, the eight groups of the detection modules 2 carry out cyclic detection in unit time.
The principle and method of using the micro mist generator 37 to spray the inert atomization medium formed by the purified water and the nitrogen gas to control the concentration of the oil-gas mixture in the oil-gas space 44, actively suppressing the combustion and explosion, lowering the temperature and extinguishing the fire, etc. are described in detail in the Chinese patent CN201310144484.2, the grant bulletin date 2015, and the 6 th month 10, and are not repeated here.
The principle of measuring the density by the liquid density sensor 211 to reflect the concentration of the oil-gas mixture and the method of intelligent control by the control center 12 in this embodiment are all implemented by the prior art, and will not be described herein. The liquid density sensor 211 is GB-DMR, the temperature sensor 212 is pt100, and the chip assembly 21 and the control center 12 are SCM (single chip microcomputer) MCS-51.
The foregoing description is only illustrative of the invention and is not to be construed as limiting the invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present invention, should be included in the scope of the claims of the present invention.
Claims (9)
1. The utility model provides an integrated nitrogen injection accuse oxygen fire prevention intelligent device, including control module (1), detection module (2), annotate nitrogen module (3) and sealing module (4), this sealing module (4) are including floating roof (41), primary seal (42), secondary seal (43) and oil gas space (44), this floating roof (41) are installed in floating roof oil storage tank top, this floating roof (41) are sealed through primary seal (42) and secondary seal (43) in proper order, there is oil gas space (44) between this primary seal (42) and secondary seal (43), this detection module (2) carry out density detection to the gas in oil gas space (44), this detection module (2) and control module (1) communication connection, this detection module (2) are with the density data feedback that detects control module (1), this control module (1) realize real-time analysis and monitoring, this control module (1) are connected control and are annotated nitrogen module (3) and are operated, its characterized in that: the utility model provides a detection module (2) includes chip subassembly (21), liquid density sensor (211), operating panel (22), storage battery (23), equipment box (24), detection bottle (25), oil gas suction pipe (26), solvent tank (28) and water tank (29), in oil gas suction pipe (26) one end inserts oil gas space (44), in oil gas suction pipe (26) other end inserts detection bottle (25) and go deep into detection bottle (25) bottom, constant flow pump (261) are equipped with between oil gas suction pipe (26) and detection bottle (25), fixed mounting has motor-driven agitator in detection bottle (25), detection bottle (25) intussuseption is filled with organic solvent, detection bottle (25) bottom intercommunication outside effluent treatment plant, detection bottle (25) intercommunication solvent tank (28), water spray head (291) have still been installed at detection bottle (25) lateral wall middle part, water spray head (291) intercommunication water tank (29), solvent tank (28) and detection bottle (25) and detection bottle (29) and detection bottle (25) are equipped with constant flow pump (261) bottom, detection bottle (211) are equipped with motor-driven agitator in the fixed mounting, detection bottle (25) and detection bottle (25) have the liquid density sensor (262), liquid density sensor (211) are connected in the chip subassembly is electric property in the detection bottle (211) respectively The device comprises an operation panel (22) and a storage battery pack (23), wherein the chip assembly (21) can transmit density data of a mixed solution in a detection bottle (25) detected by a liquid density sensor (211) to a control module (1) for data comparison, and the chip assembly (21), the operation panel (22), the storage battery pack (23), the detection bottle (25), a constant flow pump (261), a water pump (262), a solvent tank (28) and a water tank (29) are fixedly arranged in an equipment box (24).
2. The integrated nitrogen injection oxygen control fireproof intelligent device according to claim 1, wherein: the detection module (2) further comprises a separation device (27), the separation device (27) is communicated with the bottom of the detection bottle (25), the separation device (27) can separate oil and gas from a mixture of oil and gas, an organic solvent and water, the oil and gas separated by the separation device (27) is discharged to the outside, and the organic solvent and the water separated by the separation device (27) are respectively circulated back to the solvent tank (28) and the water tank (29).
3. The integrated nitrogen injection oxygen control fireproof intelligent device according to claim 1, wherein: the control module (1) comprises a control machine room (11), a control center (12) and an intelligent switch controller (13), wherein the control center (12), the intelligent switch controller (13), a high-pressure water pump (14) and a selection valve (15) are fixedly arranged in the control machine room (11), the control center (12) is communicated with a chip assembly (21), the control center (12) is electrically connected with the intelligent switch controller (13), the intelligent switch controller (13) electrically controls the high-pressure water pump (14) and the selection valve (15), and the control center (12) can receive data transmitted by the chip assembly (21) and compare the data with data set by the control center.
4. An integrated nitrogen injection oxygen control fire protection intelligent device according to claim 3, wherein: the nitrogen injection module (3) comprises a nitrogen storage tank (31), a purified water device (32), a water storage tank (33), a water fire extinguishing agent tank (34), an air flow pipeline (35), a liquid flow pipeline (36), a micro water mist generator (37) and an oil gas discharge pipe (371), wherein the nitrogen storage tank (31) is connected with the micro water mist generator (37) arranged in an oil gas space (44) through the air flow pipeline (35), the water storage tank (33) is connected with the micro water mist generator (37) through the liquid flow pipeline (36), gas flow and flow rate of the gas of the nitrogen storage tank (31) are controlled through a selector valve (15), water in the water storage tank (33) is pumped into the micro water mist generator (37) through a high-pressure water pump (14), the water storage tank (33) is connected with the purified water device (32), and the oil gas space (44) is communicated with the outside through the oil gas discharge pipe (371); the control module (1) can adjust different gas-liquid ratios of the micro water mist generator (37) through controlling the high-pressure water pump (14) and the selection valve (15), wherein when the control module (1) detects that the density of the mixed solution in the detection bottle (25) is greater than the set density, the control module (1) controls the micro water mist generator (37) to spray micro water mist with nitrogen medium into the oil gas space (44), dilutes the oil gas mixture in the oil gas space (44) to maintain the inert atmosphere of the oil gas space (44), and controls the concentration of the oil gas mixture in the oil gas space (44) in a safe range;
When the oil-gas space (44) needs to be cooled, the control module (1) adjusts the change of the water pressure and the air pressure of the input micro-water mist generator (37), changes the particle size of the micro-water mist, and can continuously spray the micro-water mist to cool the oil-gas space (44);
When a fire disaster occurs in the oil-gas space (44), the control module (1) adjusts the change of the water pressure and the air pressure of the input micro water mist generator (37) to enlarge the particle size of the micro water mist into fine water mist, so as to extinguish the fire.
5. The integrated nitrogen injection oxygen control fireproof intelligent device according to claim 4, wherein: the tail end of the oil gas discharge pipe (371) is provided with a filter (372) capable of absorbing waste gas.
6. An integrated nitrogen injection oxygen control fire protection intelligent device according to claim 3, wherein: solar cell panels are arranged outside the control machine room (11) and the equipment box (24) in an erected mode, and the solar cell panels are respectively connected to the control machine room (11), the control center (12) and the storage battery pack (23).
7. The integrated nitrogen injection oxygen control fireproof intelligent device according to claim 1, wherein: a sealing seat (263) is filled between the oil gas suction pipe (26) and the oil gas space (44), a filter screen cover (264) is fixedly arranged at the inner end of the sealing seat (263), and a dryer is contained in the filter screen cover (264).
8. The integrated nitrogen injection oxygen control fireproof intelligent device according to claim 1, wherein: a temperature sensor (212) is also fixedly arranged in the detection bottle (25).
9. An integrated nitrogen injection oxygen control fire protection intelligent device according to claim 3, wherein: the nitrogen injection device is characterized in that the detection modules (2) and the nitrogen injection modules (3) are provided with a plurality of groups, the plurality of groups of the detection modules (2) and the nitrogen injection modules (3) are uniformly controlled by the control module (1), and the nitrogen storage tanks (31) of the plurality of groups of the nitrogen injection modules (3) are controlled by the nitrogen total control valve (311).
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