CN117387001B - Gas filling and distribution control system and control method for deep diving breathing apparatus gas cylinder - Google Patents
Gas filling and distribution control system and control method for deep diving breathing apparatus gas cylinder Download PDFInfo
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- CN117387001B CN117387001B CN202311707355.XA CN202311707355A CN117387001B CN 117387001 B CN117387001 B CN 117387001B CN 202311707355 A CN202311707355 A CN 202311707355A CN 117387001 B CN117387001 B CN 117387001B
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- 238000009826 distribution Methods 0.000 title claims abstract description 220
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000009189 diving Effects 0.000 title claims abstract description 29
- 239000007789 gas Substances 0.000 claims abstract description 598
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 201
- 239000001307 helium Substances 0.000 claims abstract description 147
- 229910052734 helium Inorganic materials 0.000 claims abstract description 147
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 143
- 239000001301 oxygen Substances 0.000 claims abstract description 141
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 141
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 140
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 86
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 30
- 238000005303 weighing Methods 0.000 claims abstract description 27
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910001882 dioxygen Inorganic materials 0.000 claims abstract description 10
- 238000012806 monitoring device Methods 0.000 claims description 72
- 238000002360 preparation method Methods 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 8
- KFVPJMZRRXCXAO-UHFFFAOYSA-N [He].[O] Chemical compound [He].[O] KFVPJMZRRXCXAO-UHFFFAOYSA-N 0.000 claims description 7
- URBPUTJAZQFYSR-UHFFFAOYSA-N [He].[N].[O] Chemical compound [He].[N].[O] URBPUTJAZQFYSR-UHFFFAOYSA-N 0.000 claims description 6
- 238000005461 lubrication Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 2
- UHZZMRAGKVHANO-UHFFFAOYSA-M chlormequat chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 claims 1
- 238000005429 filling process Methods 0.000 abstract description 3
- 239000000306 component Substances 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 206010011951 Decompression Sickness Diseases 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- UDWPONKAYSRBTJ-UHFFFAOYSA-N [He].[N] Chemical compound [He].[N] UDWPONKAYSRBTJ-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- 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
-
- 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
-
- 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
- F17C13/023—Special adaptations of indicating, measuring, or monitoring equipment having the mass 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
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
-
- 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
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- 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
-
- 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
- F17C2250/0421—Mass or weight of the content of 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
Abstract
The invention discloses a gas charging and controlling system and a control method for a deep diving breathing apparatus gas cylinder, wherein the gas charging and controlling system comprises the following components: a gas distribution control system and a gas charging control system; the gas distribution control system comprises: the device comprises a nitrogen gas source bottle, a nitrogen supercharging device and a pre-mixed gas bottle which are sequentially connected through a high-pressure pipeline, wherein the pre-mixed gas bottle is subjected to vacuumizing, the helium gas source bottle, the helium supercharging device and the pre-mixed gas bottle which are sequentially connected through the high-pressure pipeline are sequentially connected, and the oxygen gas source bottle, the oxygen supercharging device and the pre-mixed gas bottle which are sequentially connected through the high-pressure pipeline are used for weighing the pre-mixed gas bottle. The gas-filling control system can prepare various mixed gases containing nitrogen, helium and oxygen, and can calculate the mass of various gases filled into the premixed gas cylinder through the concentration ratio of the mixed gases to be prepared, and then complete the mixing of various gases through the mass ratio by controlling the pressure in the gas-filling process and controlling the mass of the premixed gas cylinder and accurately control the mass of each gas-filling component.
Description
Technical Field
The invention relates to the field of gas filling and distributing of deep diving respirators, in particular to a gas filling and distributing control system and a control method, which are used for providing automatic control for gas filling and distributing processes of a gas cylinder of the deep diving respirators.
Background
The deep diving breathing apparatus is diving equipment which is necessary to be equipped for deepwater, large-scale and long-term underwater construction and salvage operation, and is widely applied to military and civil fields such as rescue of a failure submarine, submarine construction operation, underwater resource exploration, marine science investigation and the like as the only personal diving protection equipment which can enable a diver to be directly exposed to a high-pressure environment to carry out underwater operation.
It is known that in deep sea exploration, divers need to face a very high pressure environment, and if the pressure reduction treatment is improper after diving, the pressure reduction disease is extremely liable to occur, and the pressure reduction disease is a systemic disease caused by formation of bubbles inside and outside blood vessels and tissues due to that the gas originally dissolved in the body exceeds a supersaturation limit due to improper pressure reduction after operation in a high pressure environment. In order to ensure the safety of divers and reduce the occurrence of decompression sickness, the mixed gas is widely applied to deep diving, for example, in 2019, french divers dive to 10928 meters deep in a Malaysia sea ditch, a record of deep diving of human beings is created, helium oxygen mixed gas is used for the diving, the occurrence of decompression sickness is successfully avoided, and the safety and effectiveness of the helium oxygen mixed gas in deep diving are proved. The mixed gas is mixed according to a certain proportion, and in deep water diving, helium can better penetrate through body tissues of a diver due to smaller molecules of the helium, so that the risk of decompression sickness is reduced, the density of air can be reduced, and the diver can easily move underwater. Meanwhile, according to the actual environment of underwater operation, the user can adjust the oxygen and nitrogen content in the mixed gas according to the requirements, so as to meet the requirements of the underwater operation under different conditions. The compressed air, namely the ratio of nitrogen to oxygen is approximately 79: a trained diver can use high oxygen air, i.e. 32% oxygen. With the development of technology, more efficient gas mixing ratios will be developed in the future, thereby improving diver safety and comfort. In addition, along with the continuous expansion of the deep sea exploration field, the nitrogen helium oxygen mixed gas plays an important role in the aspects of ocean resource development, scientific research and the like.
The proportioning precision of the mixed gas is a key for ensuring the safety of divers and smoothly completing deep diving work. The deep-diving breathing apparatus gas cylinder as the core component of the deep-diving breathing apparatus needs to be subjected to gas distribution and gas filling, and when the gas distribution is performed, various gases with corresponding proportions need to be introduced into the premixed gas cylinder for mixing according to the use requirement, then the gas filling is performed, and the mixed gas prepared in the premixed gas cylinder is pressurized and filled into the deep-diving breathing apparatus gas cylinder. The gas distribution work of the early deep diving breathing apparatus is carried out by adopting a method of eye-watch and hand-mark recalculation, and the method has the biggest defects of low gas filling and gas distribution efficiency and low gas distribution precision, needs repeated gas filling correction and influences the safe use of equipment. The existing mixed gas charging and distributing system of the deep submerged respirator adopts a gas distribution computer to calculate and monitor, so that manual calculation and manual control are omitted, the efficiency is improved, the gas distribution precision and the use safety of equipment are ensured, the existing mixed gas charging and distributing system adopts a traditional split-pressure gas distribution method, and the gas is compressed in the actual gas distribution process, and the temperature of the premixed gas cylinder can be non-linearly increased along with the change of the gas pressure according to an ideal gas state equation PV=nRT, and the gas distribution pressure in the premixed gas cylinder can be influenced, so that the gas distribution precision adopting a partial pressure gas distribution method is difficult to ensure the precision. The filling and gas-distributing process is to calculate the pressure value of each gas according to the preset pressure of the mixed gas cylinder, and then use the gas cylinder containing a certain gas as the premixed gas cylinder, so that the excessive gas exceeding the calculated gas pressure value in the gas cylinder needs to be discharged first, and a great amount of gas source is wasted.
In order to solve the problems, the distribution quality of each gas can be calculated through the concentration of the mixed gas to be prepared, inert gas (nitrogen and/or helium) with corresponding quality is sequentially filled into the premixed gas cylinder according to the calculation result, and finally oxygen with corresponding quality is filled into the premixed gas cylinder, and then the mixed gas is filled into the deep-diving breathing apparatus gas cylinder from the premixed gas cylinder. The preparation of the mixed gas is completed by calculating the mass ratio of the gas, so that the gas distribution process is not influenced by pressure and temperature, and the mixed gas with more accurate concentration ratio is obtained.
Disclosure of Invention
Aiming at the problems of the related art, the invention aims to provide a gas filling and distribution control system of a deep-diving breathing apparatus gas cylinder, so as to obtain mixed gas with more accurate concentration ratio by a gas distribution mode of mass ratio realized by the control system.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a gas charge control system for a deep-diving breathing apparatus gas cylinder, comprising: a gas distribution control system and a gas charging control system;
the gas distribution control system comprises: the device comprises a nitrogen gas source bottle, a nitrogen supercharging device and a pre-mixed gas bottle which are sequentially connected through a high-pressure pipeline, wherein the pre-mixed gas bottle is subjected to vacuumizing, the helium gas source bottle, the helium supercharging device and the pre-mixed gas bottle are sequentially connected through the high-pressure pipeline, and the oxygen gas source bottle, the oxygen supercharging device and the pre-mixed gas bottle which are sequentially connected through the high-pressure pipeline are used for weighing the weighing device for the quality of the pre-mixed gas bottle;
The nitrogen supply valve is connected between the nitrogen source bottle and the nitrogen pressurizing device, the nitrogen pressurizing valve and the nitrogen charging valve are sequentially connected between the nitrogen pressurizing device and the premixed gas bottle, and the first pressure monitoring device is connected with the nitrogen pressurizing device; the helium gas supply valve is connected between the helium gas source bottle and the helium pressurizing device, the helium pressurizing valve and the helium charging valve are sequentially connected between the helium pressurizing device and the premixed gas bottle, and the second pressure monitoring device is connected with the helium pressurizing device; the oxygen supply valve is connected between the oxygen source bottle and the oxygen pressurizing device, the oxygen pressurizing valve and the oxygen charging valve are sequentially connected between the oxygen pressurizing device and the premixed gas bottle, and the third pressure monitoring device is connected with the oxygen pressurizing device; the air distribution system comprises an air distribution touch control screen, an air distribution computer and an air distribution logic controller;
the gas distribution touch control screen is used for inputting the mixture ratio of each gas component of the mixed gas to be prepared into the gas distribution computer, preparing the pressure of the premixed gas cylinder of the mixed gas, and sending a control preparation instruction to the gas distribution computer;
The gas distribution computer is used for calculating the first premixing quality of nitrogen, the second premixing quality of helium and the third premixing quality of oxygen in the mixed gas and sending the control preparation instruction to the gas distribution logic controller;
the distribution logic controller is used for controlling the opening and closing of the nitrogen gas supply valve, the nitrogen pressurizing device, the nitrogen gas charging valve, the helium gas supply valve, the helium gas pressurizing device, the helium gas charging valve, the oxygen gas supply valve, the oxygen pressurizing device and the oxygen charging valve, and receiving the pressure fed back by the first pressure monitoring device, the second pressure monitoring device and the third pressure monitoring device and the premixed gas cylinder mass fed back by the weighing device.
Further, the gas distribution control system further includes: and the air distribution logic controller is used for controlling the opening and closing of the vacuum pump and the vacuum valve respectively.
Further, the oxygen pressurizing device comprises an oxygen pneumatic pump and a driving air pump, the oxygen pneumatic pump is used for pressurizing oxygen to be filled into the premixed air cylinder, and the distribution logic controller is used for controlling the driving air pump to provide driving air for the oxygen pneumatic pump.
Further, an oxygen driving valve is arranged between the driving air pump and the oxygen pneumatic pump.
Further, the nitrogen pressurizing device and the helium pressurizing device both comprise electric solid lubrication booster pumps, and the electric solid lubrication booster pumps are used for boosting the nitrogen and the helium to be filled into the premixed gas cylinder.
Further, the gas distribution control system further includes: and the gas distribution logic controller is used for receiving the pressure fed back by the fourth pressure monitoring device.
Further, the gas distribution control system further includes: the device comprises a nitrogen gas source bottle, a fifth pressure monitoring device connected with the nitrogen gas source bottle, a sixth pressure monitoring device connected with the helium gas source bottle, a seventh pressure monitoring device connected with the oxygen gas source bottle, and a gas distribution logic controller, wherein the gas distribution logic controller is used for respectively receiving pressures fed back by the fifth pressure monitoring device, the sixth pressure monitoring device and the seventh pressure monitoring device.
Further, the nitrogen charging valve includes: the inflation electromagnetic valve is connected with the premixed gas cylinder, and the precise control valve is connected with the nitrogen pressurization valve; the helium charge valve includes: the inflation electromagnetic valve and the precise control valve are connected with the helium booster valve; the oxygen charging valve includes: the inflation electromagnetic valve is connected with the precise control valve of the oxygen pressurizing valve.
Further, the gas distribution control system further comprises a temperature sensor connected with the premixed gas cylinder, and the temperature sensor sends the monitored temperature to the gas distribution logic controller.
Further, the inflation control system includes: the premixed gas cylinder, the gas mixing supercharging device and the deep submerged expiratory gas cylinder are connected in sequence through a high-pressure pipeline;
the mixed gas supply valve is connected between the premixed gas cylinder and the mixed gas pressurizing device, the mixed gas charging valve is connected between the mixed gas pressurizing device and the premixed gas cylinder, and the eighth pressure monitoring device is connected with the deep submerged respirator gas cylinder; the inflatable touch control screen, the inflatable computer and the inflatable logic controller;
the inflatable touch control screen is used for inputting the pressure of the deep diving breathing apparatus gas cylinder filled with the mixed gas to the inflatable computer and sending an inflation control instruction to the inflatable computer;
the inflation computer is used for sending the inflation control instruction to the inflation logic controller;
and the inflation logic controller is used for controlling the opening and closing of the mixed gas supply valve and the mixed gas inflation valve and receiving the pressure fed back by the eighth pressure monitoring device.
Further, the gas mixing pressurization device comprises a gas mixing pneumatic pump and a gas mixing driving air pump, the gas mixing pneumatic pump is used for boosting the mixed gas to be filled into the deep submerged respirator gas cylinder, and the gas filling logic controller is used for controlling the gas mixing driving air pump to provide driving gas for the gas mixing pneumatic pump.
Further, the inflation control system further includes: and the aeration logic controller is used for receiving the pressure fed back by the ninth pressure monitoring device.
Further, the inflation control system further comprises an inflation protective box, and the deep-diving respirator gas cylinder is arranged in the inflation protective box.
The gas filling and distribution control system of the deep diving breathing apparatus gas cylinder can be used for preparing various mixed gases containing nitrogen, helium and oxygen, the gas distribution control system can calculate the mass of various gases filled into the premixed gas cylinder through the concentration ratio of the mixed gases to be prepared, and then the pressure control in the gas filling process and the mass control on the premixed gas cylinder are used for completing the mixing of various gases through the mass ratio.
The invention also provides a method for controlling the gas filling and distributing of the deep-diving breathing apparatus gas cylinder by adopting the gas filling and distributing control system of the deep-diving breathing apparatus gas cylinder, so that a gas distributing mode of mass proportion is realized by adopting the gas filling and distributing system of the invention, and mixed gas with more accurate concentration proportion is obtained.
A method for controlling the gas filling and distributing of a deep diving respirator gas cylinder adopts the gas filling and distributing control system, which comprises the following steps:
inputting the mixture ratio of helium and oxygen components of helium-oxygen mixed gas to be prepared and the pressure of a premixed gas cylinder for preparing the mixed gas into a gas distribution computer through the gas distribution touch control screen;
calculating a second premixing mass of helium and a third premixing mass of oxygen in the mixed gas through a gas distribution computer;
inputting a preparation starting instruction through the gas distribution touch control screen, and receiving the preparation starting instruction by the computer and sending the preparation starting instruction to the gas distribution logic controller;
the gas distribution logic controller starts the helium gas supply valve and the helium gas pressurizing device, when the pressure fed back by the second pressure monitoring device received by the gas distribution logic controller reaches a second pressure range, the logic controller starts the helium gas pressurizing valve and the helium gas charging valve, and when the mass fed back by the weighing device received by the gas distribution logic controller reaches the sum of the mass of the vacuumized premixed gas cylinder and the second premixed mass of helium gas, the gas distribution logic controller controls the helium gas supply valve, the helium gas pressurizing device, the helium gas pressurizing valve and the helium gas charging valve to be closed;
The air distribution logic controller is used for opening the oxygen supply valve and the oxygen pressurizing device, when the pressure fed back by the third pressure monitoring device received by the air distribution logic controller reaches a third pressure range, the logic controller is used for opening the oxygen pressurizing valve and the oxygen charging valve, and when the mass fed back by the weighing device received by the air distribution logic controller reaches the sum of the mass of the vacuumized premixed gas cylinder, the second premixed mass of helium and the third premixed mass of oxygen, the air distribution logic controller is used for controlling to close the oxygen supply valve, the oxygen pressurizing device, the oxygen pressurizing valve and the oxygen charging valve.
The control method is used for controlling the gas filling control system of the deep-diving breathing apparatus gas cylinder, and the preparation of helium-oxygen mixed gas can be completed by converting the volume into the mass ratio.
The invention also provides another method for controlling the gas filling and distributing of the deep-diving breathing apparatus gas cylinder by adopting the gas filling and distributing control system of the deep-diving breathing apparatus gas cylinder, so that a gas distributing mode of mass proportion is realized by adopting the gas filling and distributing system of the invention, and mixed gas with more accurate concentration proportion is obtained.
A method for controlling the gas filling and distributing of a deep diving respirator gas cylinder adopts the gas filling and distributing control system, which comprises the following steps:
inputting the component proportions of nitrogen, helium and oxygen of the nitrogen helium oxygen mixed gas to be prepared and the pressure of a premixed gas cylinder for preparing the mixed gas into the gas distribution computer through the gas distribution touch control screen;
calculating a first premixing mass of nitrogen, a second premixing mass of helium and a third premixing mass of oxygen in the mixed gas through a computer;
inputting a preparation starting instruction through the gas distribution touch control screen, and receiving the preparation starting instruction by the computer and sending the preparation starting instruction to the gas distribution logic controller;
the gas distribution logic controller starts the nitrogen gas supply valve and the nitrogen gas pressurizing device, when the pressure fed back by the first pressure monitoring device received by the gas distribution logic controller reaches a first pressure range, the gas distribution logic controller starts the nitrogen gas pressurizing valve and the nitrogen gas charging valve, and when the quality fed back by the weighing device received by the gas distribution logic controller reaches the sum of the quality of the vacuumized premixed gas cylinder and the first premixed quality of nitrogen gas, the gas distribution logic controller controls the nitrogen gas supply valve, the nitrogen gas pressurizing device, the nitrogen gas pressurizing valve and the nitrogen gas charging valve to be closed;
The gas distribution logic controller starts the helium gas supply valve and the helium gas pressurizing device, when the pressure fed back by the second pressure monitoring device received by the gas distribution logic controller reaches a second pressure range, the gas distribution logic controller starts the helium gas pressurizing valve and the helium gas charging valve, and when the mass fed back by the weighing device received by the gas distribution logic controller reaches the sum of the mass of the vacuumized premixed gas cylinder, the first premixed mass of nitrogen and the second premixed mass of helium gas, the gas distribution logic controller controls the helium gas supply valve, the helium gas pressurizing device, the helium gas pressurizing valve and the helium gas charging valve to be closed;
the air distribution logic controller is used for opening the oxygen supply valve and the oxygen pressurizing device, when the pressure fed back by the third pressure monitoring device received by the air distribution logic controller reaches a third pressure range, the air distribution logic controller is used for opening the oxygen pressurizing valve and the oxygen charging valve, and when the mass fed back by the weighing device received by the air distribution logic controller reaches the sum of the mass of the vacuumized premixed gas cylinder, the first premixed mass of nitrogen, the second premixed mass of helium and the third premixed mass of oxygen, the air distribution logic controller is used for controlling to close the oxygen supply valve, the oxygen pressurizing device, the oxygen pressurizing valve and the oxygen charging valve.
The gas filling and controlling system of the deep diving breathing apparatus gas cylinder is controlled, and the preparation of the nitrogen helium oxygen mixed gas can be completed through the mass ratio by adopting the control method.
Drawings
FIG. 1 is a schematic diagram of a gas distribution control system in a gas filling control system of a deep diving breathing apparatus gas cylinder provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of an inflation control system in an inflation control system for a deep-diving breathing apparatus gas cylinder provided by an embodiment of the present invention;
in the figure:
101-a nitrogen source bottle; 102, a helium gas source bottle; 103-an oxygen source bottle; 104-a nitrogen pneumatic pump; 105-helium gas pneumatic pump; 106-an oxygen pneumatic pump; 107. 108-premixing the gas cylinder; 109. 110-a weighing device; 111-a vacuum pump; 112-driving an air pump; 113-a gas distribution logic controller; 114-a gas distribution touch control screen; 115—a nitrogen supply valve; 116-a nitrogen pressurization valve; 117-helium supply valve; 118-helium boost valve; 119-an oxygen supply valve; 120-an oxygen pressurization valve; 121—a precision control valve; 122. 123-an inflation electromagnetic valve; 124-nitrogen driven valve; 125-helium actuated valve; 126-oxygen actuated valve; 127-first pressure monitoring means; 128-a second pressure monitoring device; 129-third pressure monitoring means; 130. 131-fourth pressure monitoring means; 132-fifth pressure monitoring means; 133-a sixth pressure monitoring device; 134-seventh pressure monitoring means; 135—a temperature sensor; 136-a vacuum valve;
201-premixing gas cylinder; 202-a gas mixing pneumatic pump; 203-mixing air to drive an air pump; 204-an inflation logic controller; 205-an inflatable touch control screen; 206-an inflatable protective box; 207—a mixed gas supply valve; 208—a mixed gas charging valve; 209-eighth pressure monitoring means; 210-ninth pressure monitoring device.
Detailed Description
In order that those skilled in the art will better understand the solution of the present invention, the following description of the technical solution in the embodiment of the present invention will be clearly and completely described with reference to the accompanying drawings in which it is apparent that the described examples are only a part of examples, not all examples of the present invention. All other embodiments obtained by those skilled in the art based on the examples herein shall fall within the scope of the present invention without making any inventive effort.
In the description of the present embodiment, the terms "first," "second," and the like are used merely to distinguish similar objects and should not be construed as a specific order or sequence, it being understood that such uses may be interchanged where appropriate.
Examples
As shown in fig. 1-2, this embodiment provides a gas filling control system for a deep diving breathing apparatus gas cylinder, including: a gas distribution control system and a gas charging control system;
Referring to fig. 1, the gas distribution control system includes: the nitrogen source bottle 101, the nitrogen pressurizing device and the vacuumized premix gas bottles 107 and 108 are sequentially connected through a high-pressure pipeline; a helium gas source bottle 102, a helium supercharging device and premix gas cylinders 107 and 108 which are connected in sequence through a high-pressure pipeline; an oxygen source bottle 103, an oxygen supercharging device and premix gas cylinders 107 and 108 which are connected in sequence through a high-pressure pipeline; weighing devices 109, 110 for weighing the mass of the premix cylinders 107, 108, respectively;
a nitrogen supply valve 115 connected between the nitrogen source bottle 101 and the nitrogen pressurizing device, a nitrogen pressurizing valve 116 and a nitrogen charging valve connected in sequence between the nitrogen pressurizing device and the premixed cylinders 107, 108, and a first pressure monitoring device 127 connected with the nitrogen pressurizing device; a helium supply valve 117 connected between the helium source bottle 102 and the helium pressurizing device, a helium pressurizing valve 118 and a helium charge valve connected in sequence between the helium pressurizing device and the premixed cylinders 107, 108, and a second pressure monitoring device 128 connected with the helium pressurizing device; an oxygen supply valve 119 connected between the oxygen source bottle 103 and the oxygen pressurizing device, an oxygen pressurizing valve 120 and an oxygen charging valve connected in sequence between the oxygen pressurizing device and the premixed cylinders 107, 108, and a third pressure monitoring device 129 connected with the oxygen pressurizing device; a gas distribution touch control screen 114, a gas distribution computer, and a gas distribution logic controller 113;
The gas distribution touch control screen 114 is used for inputting the gas component proportions of the mixed gas to be prepared into a gas distribution computer, preparing the pressure of the premixed gas cylinders 107 and 108 of the mixed gas, and sending a control preparation instruction to the gas distribution computer;
the distribution computer is used for calculating the first premixing quality of nitrogen, the second premixing quality of helium and the third premixing quality of oxygen in the mixed gas and sending a control preparation instruction to the distribution logic controller 113;
the distribution logic controller 113 is used for controlling the opening and closing of the nitrogen gas supply valve 115, the nitrogen pressurizing device, the nitrogen charging valve, the helium gas supply valve 117, the helium pressurizing device, the helium charging valve, the oxygen gas supply valve 119, the oxygen pressurizing device and the oxygen charging valve, and receiving the pressure fed back by the first pressure monitoring device 127, the second pressure monitoring device 128 and the third pressure monitoring device 129 and the mass of the premixed gas cylinders 107 and 108 fed back by the weighing devices 109 and 110.
The inflation gas control system of the present embodiment further includes: a vacuum pump 111 connected to premix cylinders 107, 108, a vacuum valve 136 connected between vacuum pump 111 and premix cylinders 107, 108, and a valve logic controller 113 for controlling opening and closing of vacuum pump 111 and vacuum valve 136, respectively. The vacuum pump 111 of this embodiment can be a general rotary vane vacuum pump, and its pumping rate can reach 4.1m 3 And/h, the pressure of the premixed gas cylinders 107 and 108 can be reduced to-0.05 MPa to-0.07 MPa within 1 min.
In this embodiment, the nitrogen pressurization device includes a nitrogen pneumatic pump 104 and a driving air pump 112, the nitrogen pneumatic pump 104 is used for pressurizing nitrogen to be filled into the premixed cylinders 107 and 108, and the air distribution logic controller 113 is used for controlling the driving air pump 112 to provide driving air for the nitrogen pneumatic pump 104; the helium pressurization device comprises a helium pneumatic pump 105 and a driving air pump 112, wherein the helium pneumatic pump 105 is used for pressurizing helium to be filled into the premixed air cylinders 107 and 108, and the air distribution logic controller 113 is used for controlling the driving air pump 112 to provide driving air for the helium pneumatic pump 105; the oxygen pressurizing device comprises an oxygen pneumatic pump 106 and a driving air pump 112, wherein the oxygen pneumatic pump 106 is used for pressurizing oxygen to be filled into the premixed air cylinders 107 and 108, and the distribution logic controller 113 is used for controlling the driving air pump 112 to provide driving air for the oxygen pneumatic pump 106.
The working power of the nitrogen pneumatic pump 104, the helium pneumatic pump 105 and the oxygen pneumatic pump 106 are all gas driven, the driving air pump 112 is used for supplying air respectively, the nitrogen pneumatic pump 104, the helium pneumatic pump 105 and the oxygen pneumatic pump 106 are all pneumatic booster pumps, no electric arc or spark exists, the device is suitable for being applied to flammable and explosive places, the output pressure is stable, the generated pulse is small, and the device has higher safety when the oxygen is pressurized. The driving air pump 112 of the present embodiment adopts a general-purpose air compressor, and has a pressure stop function of up to 0.8 MPa.
In this embodiment, a nitrogen driving valve 124, a helium driving valve 125 and an oxygen driving valve 126 are also installed between the driving air pump 112 and the nitrogen air pump 104, the helium air pump 105 and the oxygen air pump 106, respectively.
In other embodiments, the nitrogen pressurization device and the helium pressurization device each comprise an electrically powered solid lubrication booster pump for boosting the nitrogen and helium to be charged into the premix cylinders 107, 108.
The air charge and air control system of this embodiment further includes: fourth pressure monitoring devices 130, 131 connected to premix cylinders 107, 108, and valve logic controller 113 is configured to receive pressure fed back by fourth pressure monitoring devices 130, 131.
The inflation gas control system of the present embodiment further includes: the fifth pressure monitoring device 132 connected to the nitrogen source bottle 104, the sixth pressure monitoring device 133 connected to the helium source bottle, the seventh pressure monitoring device 134 connected to the oxygen source bottle, and the distribution logic controller 113 is configured to receive the pressures fed back by the fifth pressure monitoring device 132, the sixth pressure monitoring device 133, and the seventh pressure monitoring device 134, respectively.
In this embodiment the nitrogen charge valve comprises: a precision control valve 121 connected to the nitrogen pressurization valve 116 by inflation solenoid valves 122, 123 connected to the premix cylinders 107, 108; the helium charge valve comprises: a precision control valve 121 connected to the helium boost valve 118 by inflation solenoid valves 122, 123; the oxygen charging valve includes: the inflation solenoid valves 122, 123, and the precise control valve 121 connected to the oxygen pressure increasing valve 120. The flow rates of nitrogen, helium and oxygen to the premix cylinders 107, 108 are controlled by the precision control valve 121, respectively, so that the inflation process is more precisely controllable.
The air charging and distributing control system of the embodiment further comprises a temperature sensor 135 connected with the premixed air cylinders 107 and 108, the temperature sensor 135 sends the monitored temperature to an air distributing logic controller 113, the monitored temperature can be sent to an air distributing computer through the logic controller 113 and displayed on an air distributing touch control screen 114, an alarm mark and an emergency stop button can be arranged on the air distributing touch control screen 114, when the temperature exceeds a certain value, the alarm mark is triggered, an operator can press the emergency stop button, all equipment and valve bodies of the air distributing system are closed, and the ongoing air distributing process is stopped, so that the air distributing system is maintained.
Referring to fig. 2, the inflation control system of the present embodiment includes: a premixed gas cylinder 201, a gas mixing supercharging device and a deep submerged expiratory gas cylinder which are connected in sequence through a high-pressure pipeline; the inflation control system of the present embodiment further includes an inflation protection housing 206, with the deep-submerged respirator gas cylinders disposed within the inflation protection housing 206.
A mixed gas supply valve 207 connected between the premixed gas cylinder 201 and the mixed gas pressurizing device, a mixed gas charging valve 208 connected between the mixed gas pressurizing device and the deep-diving breathing apparatus gas cylinder, and an eighth pressure monitoring device 209 connected with the deep-diving breathing apparatus gas cylinder; an inflatable touch control screen 205, an inflatable computer, and an inflation logic controller 204;
The inflatable touch control screen 205 is used for inputting the pressure of the gas cylinder of the deep diving breathing apparatus filled with the mixed gas to the inflatable computer and sending an instruction for controlling inflation to the gas distribution computer;
the inflation computer is used for sending a control inflation instruction to the inflation logic controller 204;
the inflation logic controller 204 is configured to control opening and closing of the mixed gas supply valve 207 and the mixed gas inflation valve 208, and receive the pressure fed back by the eighth pressure monitoring device 209.
The air mixing pressurization device of the inflation control system comprises an air mixing pneumatic pump 202 and an air mixing driving air pump 203, wherein the air mixing pneumatic pump 202 is used for boosting the mixed gas to be filled into the deep submerged respirator air cylinder, and the inflation logic controller 204 is used for controlling the air mixing driving air pump 203 to provide driving gas for the air mixing pneumatic pump 202.
The working power of the gas-mixing pneumatic pump 202 is gas, the gas-mixing driving air pump 203 is adopted for supplying gas, the gas-mixing pneumatic pump 202 is a pneumatic booster pump, no electric arc or spark exists, the gas-mixing pneumatic pump 202 is suitable for being applied to flammable and explosive places, the output pressure is stable, the generated pulse is small, and the gas-mixing pneumatic pump has higher safety when the mixed gas is pressurized. The air mixing driving air pump 203 of the embodiment adopts a general air compressor and has the function of stopping the machine to a pressure of 0.8 MPa.
The inflation control system of the present embodiment further includes: a ninth pressure monitoring device 210 connected to the premix gas cylinder 201, and the charge logic controller 204 is configured to receive the pressure fed back by the ninth pressure monitoring device 210.
The gas filling and distribution control system of the embodiment comprises a nitrogen gas filling control system, a helium gas filling control system and an oxygen gas filling control system, and the helium gas filling control system and the oxygen gas filling control system can be controlled by the gas distribution control system to prepare helium gas and nitrogen helium gas mixture, wherein the two gas mixtures are also common mixed gases of the deep diving breathing apparatus, and the control method and the gas distribution flow of the gas filling and distribution control system of the gas cylinder of the deep diving breathing apparatus are described in detail by taking the preparation of the two gas mixtures as an example. If necessary, the nitrogen-oxygen mixed gas and the nitrogen-helium mixed gas can be prepared by controlling the gas filling control system of the embodiment.
Example 1:
the helium-oxygen mixed gas is prepared by adopting the gas filling and distribution control system of the embodiment.
1. And (3) a gas distribution control process:
(1) The component proportion of helium and oxygen in helium-oxygen mixed gas, the pressure of the premixed gas cylinder after vacuumizing, the pressure of the premixed gas cylinder after preparing the mixed gas, the number of the premixed gas cylinders (two premixed gas cylinders 107 and 108 are arranged in the embodiment) and numbering are set through the gas distribution touch control screen 114, after clicking a parameter setting button on the gas distribution touch control screen 114, a gas distribution computer automatically calculates the mass of each gas component in the premixed gas cylinder, and a specific calculation method can be as follows:
According to the ideal gas equation:
wherein P is the pressure (Pa) of the gas, and V is the volume (m 3 ) M is the gas mass (g), R is the molar gas constant (8.31441 Pa. M 3 K, T is the gas temperature (K), M is the molar mass (g/mol);
the mass of each distribution component of the mixed gas is as follows:
in the method, in the process of the invention,for filling a premix cylinder with a certain mass (g) of gas, ->The pre-set pressure value (MPa) of the premixed cylinder for preparing the mixed gas,/is>Is the volume (m 3 ），/>R is the molar gas constant (8.31441 Pa. M 3 /mol﹒K），/>To prepare the mixed gas, the temperature of the gas is%K），/>The molar mass (g/mol) of the gas is indicated.
From the ideal gas equation, the mass is proportional to the volume, while the mass of the gas is not affected by temperature and pressure. The concentration ratio of various gases in the mixed gas is actually the mass ratio of various gases, and the gas distribution method of the application is a method for directly measuring the mass of various gases in the gas distribution process and controlling the mass ratio of the mixed gas after gas distribution to realize concentration ratio gas distribution, so the method is the most direct gas distribution method. Because the mixed gas is prepared by using a method for weighing the mass, the mass measurement is the only factor influencing the gas distribution precision, and the higher the mass measurement precision is, the higher the gas distribution precision is.
(2) Clicking a 'start preparation' button on the gas distribution touch control screen 114, sending a preparation instruction to the gas distribution logic controller 113 by the gas distribution computer, opening the vacuum pump 111 and the vacuum valve 136 by the gas distribution logic controller 113, vacuumizing the premixed gas cylinders 107 and 108, and closing the vacuum pump 111 and the vacuum valve 136 by the gas distribution logic controller 113 when the pressure monitored by the fourth pressure monitoring devices 130 and 131 received by the gas distribution logic controller 113 reaches-0.05 MPa to-0.07 MPa, so as to finish vacuumizing the premixed gas cylinders 107 and 108.
(3) The gas distribution logic controller 113 opens the helium gas supply valve 117, the helium gas pneumatic pump 105 and the driving air pump 112, when the pressure fed back by the second pressure monitoring device 128 received by the gas distribution logic controller 113 reaches a second pressure range (greater than or equal to 2.5 MPa), the gas distribution logic controller 113 opens the helium pressurizing valve 118, the precision control valve 121 and the charging electromagnetic valves 122 and 123, and when the mass fed back by the weighing devices 109 and 110 received by the gas distribution logic controller 113 reaches the sum of the mass of the pre-mixed gas cylinders 107 and 108 after vacuumizing and the mass of the second pre-mixed helium gas, the gas distribution logic controller 113 controls to close the helium gas supply valve 117, the helium gas pneumatic pump 105 and the driving air pump 112, the helium gas pressurizing valve 118, the precision control valve 121 and the charging electromagnetic valves 122 and 123, and completes the charging of the helium gas in the pre-mixed gas cylinders 107 and 108.
(4) The air distribution logic controller 113 opens the oxygen supply valve 119, the oxygen pneumatic pump 106 and the driving air pump 112, when the pressure fed back by the third pressure monitoring device 129 received by the air distribution logic controller 113 reaches a third pressure range (greater than or equal to 2.5 MPa), the air distribution logic controller 113 opens the oxygen pressurizing valve 120, the precision control valve 121 and the charging electromagnetic valves 122 and 123, and when the mass fed back by the weighing devices 109 and 110 received by the air distribution logic controller 113 reaches the sum of the mass of the pre-mixed air cylinders 107 and 108 after vacuumizing, the second pre-mixed mass of helium and the third pre-mixed mass of oxygen, the air distribution logic controller 113 controls to close the oxygen supply valve 119, the oxygen pneumatic pump 106, the driving air pump 112, the oxygen pressurizing valve 120, the precision control valve 121 and the charging electromagnetic valves 122 and 123 to complete the charging of oxygen in the pre-mixed air cylinders 107 and 108.
In the case of an emergency during the preparation process, the operator can immediately click the red "emergency stop" button on the gas distribution touch control screen 114, and can immediately stop all the devices. After the mixed gas is prepared, a 'preparation and arrangement' button on the gas distribution touch control screen 114 is clicked to perform the gas distribution system exhaust work, and the residual gas in the pipeline is discharged, so that the influence on the next gas distribution precision is prevented. When the venting operation is completed, the "data save" button on the valve touch control screen 114 may be clicked to save the compounding data in the database. If the air distribution is continued, the data refreshing button on the air distribution touch control screen 114 is clicked, and the air distribution system and the operation interface on the air distribution touch control screen 114 are restored to the initial state, so that the next air distribution can be performed.
After the gas distribution is completed, the premixed gas cylinder is installed in an inflation system, and the mixed gas in the premixed gas cylinder is inflated into the deep-diving respirator gas cylinder. The pressure of the inflation protecting box is set through the inflation touch control screen 205, then a button for setting parameters on the inflation touch control screen 205 is clicked, then the button for starting the inflation is clicked to perform the inflation, the inflation computer sends an inflation instruction to the inflation logic controller 204, the inflation logic controller 204 starts the mixed gas supply valve 207, the mixed gas pneumatic pump 202 and the mixed gas driving air pump 203, and when the pressure of mixed gas meets the inflation requirement, the inflation logic controller 204 starts the mixed gas inflation valve 208 to inflate the deep submerged respirator air cylinders in the inflation protecting box 206. During inflation, the eighth pressure monitoring device 209 and the ninth pressure monitoring device 210 are respectively configured to monitor the pressure of the deep breathing apparatus gas cylinder and the pressure of the premixed gas cylinder, and feed back the monitored pressures to the inflation logic controller 204.
In the case of emergency during the filling process, all the devices can be stopped immediately by clicking the "emergency stop" button on the inflatable touch-control screen 205 immediately. Clicking the "data save" button on the inflation touch control screen 205 saves the next fill data in the database. If the filling is continued, the data refreshing button on the inflatable touch screen 205 is clicked, and the operation interfaces on the inflation system and the inflatable touch screen 205 are restored to the initial state, so that the next filling can be performed.
Example 2:
the charging gas control system of the embodiment is adopted to control and prepare the nitrogen helium oxygen mixed gas.
1. And (3) a gas distribution control process:
(1) The component proportion of nitrogen, helium and oxygen in the nitrogen helium-oxygen mixed gas, the pressure of the premixed gas cylinder after vacuumizing, the pressure of the premixed gas cylinder after the mixed gas is prepared, the number of the premixed gas cylinders (the two premixed gas cylinders 107 and 108 are arranged in the embodiment) and the number are set through the gas distribution touch control screen 114, a 'set parameter' button on the gas distribution touch control screen 114 is clicked, the gas distribution computer automatically calculates the quality of each gas component in the premixed gas cylinder, and a specific calculation method can refer to the calculation method in example 1.
(2) Clicking a 'start preparation' button on the gas distribution touch control screen 114, sending a preparation instruction to the gas distribution logic controller 113 by the gas distribution computer, opening the vacuum pump 111 and the vacuum valve 136 by the gas distribution logic controller 113, vacuumizing the premixed gas cylinders 107 and 108, and closing the vacuum pump 111 and the vacuum valve 136 by the gas distribution logic controller 113 when the pressure monitored by the fourth pressure monitoring devices 130 and 131 received by the gas distribution logic controller 113 reaches-0.05 MPa to-0.07 MPa, so as to finish vacuumizing the premixed gas cylinders 107 and 108.
(3) The air distribution logic controller 113 opens the nitrogen supply valve 115, the nitrogen pneumatic pump 104 and the driving air pump 112, when the pressure fed back by the first pressure monitoring device 127 received by the air distribution logic controller 113 reaches a second pressure range (greater than or equal to 2.5 MPa), the air distribution logic controller 113 opens the nitrogen pressurizing valve 116, the precision control valve 121 and the charging electromagnetic valves 122 and 123, and when the mass fed back by the weighing devices 109 and 110 received by the air distribution logic controller 113 reaches the sum of the mass of the pre-mixed air cylinders 107 and 108 after vacuumizing and the first pre-mixed mass of nitrogen, the air distribution logic controller 113 controls to close the nitrogen supply valve 115, the nitrogen pneumatic pump 104 and the driving air pump 112, the nitrogen pressurizing valve 116, the precision control valve 121 and the charging electromagnetic valves 122 and 123, and completes charging of the nitrogen in the pre-mixed air cylinders 107 and 108.
(4) The gas distribution logic controller 113 opens the helium gas supply valve 117, the helium gas pneumatic pump 105 and the driving air pump 112, when the pressure fed back by the second pressure monitoring device 128 received by the gas distribution logic controller 113 reaches a second pressure range (greater than or equal to 2.5 MPa), the gas distribution logic controller 113 opens the helium gas pressurizing valve 118, the precision control valve 121 and the charging electromagnetic valves 122 and 123, and when the mass fed back by the weighing devices 109 and 110 received by the gas distribution logic controller 113 reaches the sum of the mass of the pre-mixed gas cylinders 107 and 108 after vacuumizing, the first pre-mixed mass of nitrogen and the second pre-mixed mass of helium gas, the gas distribution logic controller 113 controls to close the helium gas supply valve 117, the helium gas pneumatic pump 105 and the driving air pump 112, the helium gas pressurizing valve 118, the precision control valve 121 and the charging electromagnetic valves 122 and 123, and completes the charging of helium gas in the pre-mixed gas cylinders 107 and 108.
(5) The air distribution logic controller 113 opens the oxygen supply valve 119, the oxygen pneumatic pump 106 and the driving air pump 112, when the pressure fed back by the third pressure monitoring device 129 received by the air distribution logic controller 113 reaches a third pressure range (greater than or equal to 2.5 MPa), the air distribution logic controller 113 opens the oxygen pressurizing valve 120, the precision control valve 121 and the charging electromagnetic valves 122 and 123, and when the mass fed back by the weighing devices 109 and 110 received by the air distribution logic controller 113 reaches the sum of the mass of the pre-mixed air cylinders 107 and 108 after vacuumizing, the first pre-mixed mass of nitrogen, the second pre-mixed mass of helium and the third pre-mixed mass of oxygen, the air distribution logic controller 113 controls to close the oxygen supply valve 119, the oxygen pneumatic pump 106, the driving air pump 112, the oxygen pressurizing valve 120, the precision control valve 121 and the charging electromagnetic valves 122 and 123 to complete the charging of oxygen in the pre-mixed air cylinders 107 and 108.
It should be noted that, in the air-charging and air-distributing system of this embodiment, the air-distributing touch control screen 114 and the air-charging touch control screen 205 are the same touch control screen, and the air-distributing computer and the air-charging computer are the same computer, but the interfaces displayed by software control in the air-distributing and air-charging processes are different; the gas distribution logic controller 113 and the gas filling logic controller 204 are the same logic controller, and are controlled by different software, so that the logic executed by the gas distribution logic controller is inconsistent in the gas filling and gas distribution processes.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments employed for the purpose of illustrating the principles of the present invention, however, the present invention is not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the principles and spirit of the invention, and such modifications and improvements are also considered within the scope of the invention.
Claims (13)
1. A gas charge control system for a deep-diving breathing apparatus gas cylinder, comprising: a gas distribution control system and a gas charging control system;
the gas distribution control system comprises: the device comprises a nitrogen gas source bottle, a nitrogen supercharging device and a pre-mixed gas bottle which are sequentially connected through a high-pressure pipeline, wherein the pre-mixed gas bottle is subjected to vacuumizing, the helium gas source bottle, the helium supercharging device and the pre-mixed gas bottle are sequentially connected through the high-pressure pipeline, and the oxygen gas source bottle, the oxygen supercharging device and the pre-mixed gas bottle which are sequentially connected through the high-pressure pipeline are used for weighing the weighing device for the quality of the pre-mixed gas bottle;
the nitrogen supply valve is connected between the nitrogen source bottle and the nitrogen pressurizing device, the nitrogen pressurizing valve and the nitrogen charging valve are sequentially connected between the nitrogen pressurizing device and the premixed gas bottle, and the first pressure monitoring device is connected with the nitrogen pressurizing device; the helium gas supply valve is connected between the helium gas source bottle and the helium pressurizing device, the helium pressurizing valve and the helium charging valve are sequentially connected between the helium pressurizing device and the premixed gas bottle, and the second pressure monitoring device is connected with the helium pressurizing device; the oxygen supply valve is connected between the oxygen source bottle and the oxygen pressurizing device, the oxygen pressurizing valve and the oxygen charging valve are sequentially connected between the oxygen pressurizing device and the premixed gas bottle, and the third pressure monitoring device is connected with the oxygen pressurizing device; the air distribution system comprises an air distribution touch control screen, an air distribution computer and an air distribution logic controller;
The gas distribution touch control screen is used for inputting the mixture ratio of each gas component of the mixed gas to be prepared into the gas distribution computer, preparing the pressure of the premixed gas cylinder of the mixed gas, and sending a control preparation instruction to the gas distribution computer;
the gas distribution computer is used for calculating the first premixing quality of nitrogen, the second premixing quality of helium and the third premixing quality of oxygen in the mixed gas and sending the control preparation instruction to the gas distribution logic controller; the gas distribution computer automatically calculates the mass of each gas component in the premixed gas cylinder, and the mass of each gas distribution component of the mixed gas is as follows:
，
in the method, in the process of the invention,for filling a premix cylinder with a certain mass (g) of gas, ->The pre-set pressure value (MPa) of the premixed cylinder for preparing the mixed gas,/is>Is the volume (m 3 ），/>As a percentage of the gas in the mixed gas,r is molar gas constant (8.31441 Pa. M) 3 /mol﹒K），/>For the preparation of the gas mixture, the gas temperature (K) is +.>Represents the molar mass (g/mol) of the gas;
the distribution logic controller is used for controlling the opening and closing of the nitrogen gas supply valve, the nitrogen pressurizing device, the nitrogen charging valve, the helium gas supply valve, the helium pressurizing device, the helium gas charging valve, the oxygen gas supply valve, the oxygen pressurizing device and the oxygen charging valve, and receiving the pressure fed back by the first pressure monitoring device, the second pressure monitoring device and the third pressure monitoring device and the premixed gas cylinder mass fed back by the weighing device;
The oxygen pressurizing device comprises an oxygen pneumatic pump and a driving air pump, the oxygen pneumatic pump is used for pressurizing oxygen to be filled into the premixed air cylinder, and the distribution logic controller is used for controlling the driving air pump to provide driving gas for the oxygen pneumatic pump; an oxygen driving valve is also arranged between the driving air pump and the oxygen pneumatic pump.
2. The gas distribution control system of a deep breathing apparatus gas cylinder of claim 1, further comprising: and the air distribution logic controller is used for controlling the opening and closing of the vacuum pump and the vacuum valve respectively.
3. The inflation gas control system of a deep-latency respirator gas cylinder of claim 1, wherein the nitrogen pressurization device and the helium pressurization device each comprise an electric solid lubrication booster pump for boosting nitrogen and helium to be inflated into the pre-mixed gas cylinder.
4. The gas distribution control system of a deep breathing apparatus gas cylinder of claim 1, further comprising: and the gas distribution logic controller is used for receiving the pressure fed back by the fourth pressure monitoring device.
5. The gas distribution control system of a deep breathing apparatus gas cylinder of claim 1, further comprising: the device comprises a nitrogen gas source bottle, a fifth pressure monitoring device connected with the nitrogen gas source bottle, a sixth pressure monitoring device connected with the helium gas source bottle, a seventh pressure monitoring device connected with the oxygen gas source bottle, and a gas distribution logic controller, wherein the gas distribution logic controller is used for respectively receiving pressures fed back by the fifth pressure monitoring device, the sixth pressure monitoring device and the seventh pressure monitoring device.
6. The inflation gas control system of claim 1, wherein the nitrogen inflation valve comprises: the inflation electromagnetic valve is connected with the premixed gas cylinder, and the precise control valve is connected with the nitrogen pressurization valve; the helium charge valve includes: the inflation electromagnetic valve and the precise control valve are connected with the helium booster valve; the oxygen charging valve includes: the inflation electromagnetic valve is connected with the precise control valve of the oxygen pressurizing valve.
7. The gas charge control system of a deep submersible respirator gas cylinder of claim 1, further comprising a temperature sensor connected to the pre-mix gas cylinder, the temperature sensor sending the monitored temperature to the gas charge logic controller.
8. The inflation gas control system of a deep breathing apparatus gas cylinder of claim 1, wherein the inflation gas control system comprises: the premixed gas cylinder, the gas mixing supercharging device and the deep submerged expiratory gas cylinder are connected in sequence through a high-pressure pipeline;
the mixed gas supply valve is connected between the premixed gas cylinder and the mixed gas pressurizing device, the mixed gas charging valve is connected between the mixed gas pressurizing device and the premixed gas cylinder, and the eighth pressure monitoring device is connected with the deep submerged respirator gas cylinder; the inflatable touch control screen, the inflatable computer and the inflatable logic controller;
the inflatable touch control screen is used for inputting the pressure of the deep diving breathing apparatus gas cylinder filled with the mixed gas to the inflatable computer and sending an inflation control instruction to the inflatable computer;
the inflation computer is used for sending the inflation control instruction to the inflation logic controller;
and the inflation logic controller is used for controlling the opening and closing of the mixed gas supply valve and the mixed gas inflation valve and receiving the pressure fed back by the eighth pressure monitoring device.
9. The inflation gas control system of the deep-diving breathing apparatus gas cylinder of claim 8, wherein the gas mixing pressurization device comprises a gas mixing pneumatic pump and a gas mixing driving air pump, the gas mixing pneumatic pump is used for pressurizing mixed gas to be inflated into the deep-diving breathing apparatus gas cylinder, and the inflation logic controller is used for controlling the gas mixing driving air pump to provide driving gas for the gas mixing pneumatic pump.
10. The inflation gas control system of a deep breathing apparatus gas cylinder of claim 8, wherein the inflation gas control system further comprises: and the aeration logic controller is used for receiving the pressure fed back by the ninth pressure monitoring device.
11. The inflation gas control system of the deep-latency respirator gas cylinder of claim 8, further comprising an inflation protection tank in which the deep-latency respirator gas cylinder is disposed.
12. A method for controlling the gas filling and distributing of a deep diving breathing apparatus gas cylinder, characterized in that the gas filling and distributing control system as claimed in any one of claims 1-11 is adopted, comprising:
inputting the mixture ratio of helium and oxygen components of helium-oxygen mixed gas to be prepared and the pressure of a premixed gas cylinder for preparing the mixed gas into a gas distribution computer through the gas distribution touch control screen;
calculating a second premixing mass of helium and a third premixing mass of oxygen in the mixed gas through a gas distribution computer;
inputting a preparation starting instruction through the gas distribution touch control screen, and receiving the preparation starting instruction by the computer and sending the preparation starting instruction to the gas distribution logic controller;
The gas distribution logic controller starts the helium gas supply valve and the helium gas pressurizing device, when the pressure fed back by the second pressure monitoring device received by the gas distribution logic controller reaches a second pressure range, the logic controller starts the helium gas pressurizing valve and the helium gas charging valve, and when the mass fed back by the weighing device received by the gas distribution logic controller reaches the sum of the mass of the vacuumized premixed gas cylinder and the second premixed mass of helium gas, the gas distribution logic controller controls the helium gas supply valve, the helium gas pressurizing device, the helium gas pressurizing valve and the helium gas charging valve to be closed;
the air distribution logic controller is used for opening the oxygen supply valve and the oxygen pressurizing device, when the pressure fed back by the third pressure monitoring device received by the air distribution logic controller reaches a third pressure range, the logic controller is used for opening the oxygen pressurizing valve and the oxygen charging valve, and when the mass fed back by the weighing device received by the air distribution logic controller reaches the sum of the mass of the vacuumized premixed gas cylinder, the second premixed mass of helium and the third premixed mass of oxygen, the air distribution logic controller is used for controlling to close the oxygen supply valve, the oxygen pressurizing device, the oxygen pressurizing valve and the oxygen charging valve.
13. A method for controlling the gas filling and distributing of a deep diving breathing apparatus gas cylinder, characterized in that the gas filling and distributing control system as claimed in any one of claims 1-11 is adopted, comprising:
inputting the component proportions of nitrogen, helium and oxygen of the nitrogen helium oxygen mixed gas to be prepared and the pressure of a premixed gas cylinder for preparing the mixed gas into the gas distribution computer through the gas distribution touch control screen;
calculating a first premixing mass of nitrogen, a second premixing mass of helium and a third premixing mass of oxygen in the mixed gas through a computer;
inputting a preparation starting instruction through the gas distribution touch control screen, and receiving the preparation starting instruction by the computer and sending the preparation starting instruction to the gas distribution logic controller;
the gas distribution logic controller starts the nitrogen gas supply valve and the nitrogen gas pressurizing device, when the pressure fed back by the first pressure monitoring device received by the gas distribution logic controller reaches a first pressure range, the gas distribution logic controller starts the nitrogen gas pressurizing valve and the nitrogen gas charging valve, and when the quality fed back by the weighing device received by the gas distribution logic controller reaches the sum of the quality of the vacuumized premixed gas cylinder and the first premixed quality of nitrogen gas, the gas distribution logic controller controls the nitrogen gas supply valve, the nitrogen gas pressurizing device, the nitrogen gas pressurizing valve and the nitrogen gas charging valve to be closed;
The gas distribution logic controller starts the helium gas supply valve and the helium gas pressurizing device, when the pressure fed back by the second pressure monitoring device received by the gas distribution logic controller reaches a second pressure range, the gas distribution logic controller starts the helium gas pressurizing valve and the helium gas charging valve, and when the mass fed back by the weighing device received by the gas distribution logic controller reaches the sum of the mass of the vacuumized premixed gas cylinder, the first premixed mass of nitrogen and the second premixed mass of helium gas, the gas distribution logic controller controls the helium gas supply valve, the helium gas pressurizing device, the helium gas pressurizing valve and the helium gas charging valve to be closed;
the air distribution logic controller is used for opening the oxygen supply valve and the oxygen pressurizing device, when the pressure fed back by the third pressure monitoring device received by the air distribution logic controller reaches a third pressure range, the air distribution logic controller is used for opening the oxygen pressurizing valve and the oxygen charging valve, and when the mass fed back by the weighing device received by the air distribution logic controller reaches the sum of the mass of the vacuumized premixed gas cylinder, the first premixed mass of nitrogen, the second premixed mass of helium and the third premixed mass of oxygen, the air distribution logic controller is used for controlling to close the oxygen supply valve, the oxygen pressurizing device, the oxygen pressurizing valve and the oxygen charging valve.
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| CN117387001A (en) | 2024-01-12 |
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