CN116428510A - Low capacity CO 2 Liquid storage tank split charging system and method - Google Patents
Low capacity CO 2 Liquid storage tank split charging system and method Download PDFInfo
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- CN116428510A CN116428510A CN202310340919.4A CN202310340919A CN116428510A CN 116428510 A CN116428510 A CN 116428510A CN 202310340919 A CN202310340919 A CN 202310340919A CN 116428510 A CN116428510 A CN 116428510A
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- 238000003860 storage Methods 0.000 title claims abstract description 138
- 239000007788 liquid Substances 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims description 12
- 238000000926 separation method Methods 0.000 claims abstract description 25
- 238000002955 isolation Methods 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 3
- 238000005429 filling process Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000002309 gasification Methods 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 i.e. Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
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
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
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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
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
Abstract
The invention discloses a low-capacity CO 2 The split charging system comprises a first-stage storage tank, a first-stage supercharging device, a second-stage storage tank, a liquid-gas separator, a liquid inlet electromagnetic valve and an exhaust electromagnetic valve; the primary supercharging device, the secondary storage tank and the liquid-gas separator are arranged in a matched mode, and the primary supercharging device and the secondary supercharging device are utilized to respectively carry out CO (carbon monoxide) treatment 2 The primary pressurization and the secondary pressurization are carried out to effectively improve the CO 2 Simultaneously utilizing a secondary storage tank and a liquid-gas separator to respectively carry out high-pressure CO 2 The primary liquid-gas separation and the secondary liquid-gas separation are carried out, in addition, the liquid inlet electromagnetic valve and the air outlet electromagnetic valve are matched, the liquid inlet electromagnetic valve and the air outlet electromagnetic valve are utilized to respectively control liquid inlet and air outlet, and in the filling process, the height is highCO compression 2 The gas can float upwards to enter the gas storage cavity for temporary storage, and the temporary stored high-pressure CO is stored after filling 2 The gas is discharged, so that high-pressure CO is filled in the small-capacity gas cylinder as much as possible 2 The liquid saves the gas consumption.
Description
Technical Field
The invention relates to the gas filling field technology, in particular to a small-capacity CO 2 Liquid storage tank sub-packaging systems and methods.
Background
CO 2 Liquid, i.e., liquid carbon dioxide, refers to the high pressure and low temperature at which carbon dioxide gas is vaporized into a liquid form. Liquid carbon dioxide is a refrigerant which can be used to preserve food and also used for artificial rainfall. It is also an industrial raw material, and can be used for preparing soda ash, urea and soda water.
In daily life, various bubble water preparation needs to use a small-capacity gas cylinder filled with high-pressure CO 2 For this purpose, in industrial production, high-pressure CO is required for small-capacity gas cylinders 2 And filling the liquid.
Currently, high pressure CO 2 In the process of filling liquid with small capacity, the filling capacity is not large, and the liquid has the characteristics of high frequency and low flow velocity, and high pressure CO 2 The longer the flow of the liquid in the low flow rate state, the higher the pressure of CO 2 The easier the liquid is to gasify, once the gasification is generated in the pipeline, the high-pressure CO is filled in the small-capacity gas cylinder 2 Gas of high pressure CO 2 The filling efficiency of the liquid will drop sharply due to the high pressure CO 2 The gas occupies a certain volume in the small-volume gas cylinder, so that the high-pressure CO in the small-volume gas cylinder 2 The weight of the liquid cannot reach the standard.
In the prior art, in order to solve the problems, the pressure in the filling pipeline is increased by two-stage supercharging, so as to lift CO in the pipeline 2 The flow rate of the liquid is reduced in CO 2 The gasification phenomenon during filling affects the filling efficiency, and increases the volume during filling, while the increase is only used for containing CO 2 Gas, unable to hold CO 2 LiquidThe filling efficiency still can not be effectively improved, and the filling volume is increased in two ways, namely, the volume of the small-capacity gas cylinder is increased, the specification of the small-capacity gas cylinder can be changed, the use requirement can not be met, and the pressure value inside the small-capacity gas cylinder is increased, so that unsafe factors and energy consumption are increased. Therefore, it is necessary to study a scheme to solve the above-mentioned problems.
Disclosure of Invention
In view of the above, the present invention aims at providing a low-capacity CO with the main purpose of overcoming the defects existing in the prior art 2 Liquid storage tank split charging system and method capable of effectively solving the problem of CO on a small-capacity gas cylinder in the existing mode of two-stage pressurization and volume increase during filling 2 Liquid filling has the problem that filling efficiency can't effectively promote.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
low capacity CO 2 The liquid storage tank split charging system comprises a first-stage storage tank, a first-stage supercharging device, a second-stage storage tank, a liquid-gas separator, a liquid inlet electromagnetic valve and an exhaust electromagnetic valve;
the input end of the primary supercharging device is communicated with the primary storage tank; the input end of the secondary supercharging device is connected with the output end of the primary supercharging device; the secondary storage tank is communicated with the output end of the secondary supercharging device, and an output port communicated with the interior of the secondary storage tank is formed in the bottom of the secondary storage tank; the first-stage storage tank and the first-stage supercharging device are both arranged in the storage tank area, and the input end of the first-stage supercharging device is communicated with the first-stage storage tank through a first pipeline; the two-stage supercharging device, the two-stage storage tank, the liquid-gas separator, the liquid inlet electromagnetic valve and the exhaust electromagnetic valve are all arranged in the working area, the input end of the two-stage supercharging device is connected with the output end of the one-stage supercharging device through a second pipeline, and the two-stage storage tank is communicated with the output end of the two-stage supercharging device through a third pipeline; the secondary storage tank is horizontally arranged, a safety valve, a gas release valve and a pressure gauge are arranged on the secondary storage tank, the safety valve and the gas release valve are both positioned at the top of the secondary storage tank, and the pressure gauge is positioned at the input end of the secondary storage tank;
the liquid-gas separator is positioned below the secondary storage tank and comprises a liquid-gas separator, a liquid-gas inlet cover and a liquid-gas outlet cover and a sealing gasket; the liquid-gas separator is vertically arranged, the upper end surface of the liquid separator is downwards concavely provided with an isolation cavity and a gas storage cavity, the upper end of the gas storage cavity is communicated with the upper end of the isolation cavity, the lower end of the liquid-gas separator is provided with a filling flow passage, and the filling flow passage is communicated with the bottom of the isolation cavity; the liquid-gas inlet and outlet cover is fixed at the upper end of the liquid-gas separation body in a sealing way, a liquid-gas flow passage and an exhaust flow passage are arranged in the liquid-gas inlet and outlet cover, the exhaust flow passage is communicated with the gas storage cavity, a guide pipe extends out of the liquid-gas inlet and outlet cover, one end of the guide pipe is integrally communicated with the liquid-gas flow passage, the other end of the guide pipe extends out of the isolation cavity from top to bottom and is communicated with the isolation cavity, a gap is formed between the outer wall of the guide pipe and the inner wall of the isolation cavity, and the gap is communicated between the isolation cavity and the gas storage cavity; the sealing gasket is fixed on the lower end face of the liquid-gas separation body through a fixed guide cover, the fixed guide cover is provided with a filling opening, the upper surface and the lower surface of the sealing gasket are penetrated and formed with through holes, and the through holes are communicated between the filling flow passage and the filling opening;
the output end of the liquid inlet electromagnetic valve is communicated with the liquid-air flow passage, the input end of the liquid inlet electromagnetic valve is communicated with the output port through a liquid inlet pipeline, and the liquid inlet electromagnetic valve and the liquid inlet pipeline are both positioned below the secondary storage tank; the input end of the exhaust electromagnetic valve is communicated with the exhaust runner, and the output end of the exhaust electromagnetic valve is connected with an emptying pipeline.
As a preferable scheme, the lower end face of the liquid-gas separation body is concavely provided with a concave cavity, the sealing gasket is matched with the concave cavity and is embedded in the concave cavity for fixation, the fixed guide cover is in threaded connection with the lower end of the liquid-gas separation body, the inner periphery of the fixed guide cover is propped against the outer periphery of the sealing gasket, and the structure is simple and the assembly is stable.
As a preferable scheme, be provided with the support on the workspace, have the position of setting for fixing a position the low capacity gas cylinder on this support, this two-stage supercharging device, second grade storage tank, liquid-gas separator, feed liquor solenoid valve and exhaust solenoid valve all set up on the support, and this liquid-gas separator is located the position of setting directly over, simple structure, rationally distributed compactness.
As a preferred solution, the bottom of the placement position is provided with a weighing device for weighing the small-capacity gas cylinder, so as to better monitor the filling weight of the small-capacity gas cylinder.
As a preferable scheme, the arrangement positions are a plurality of arranged side by side, each arrangement position is provided with a liquid-gas separator, a liquid inlet electromagnetic valve and an exhaust electromagnetic valve, the bottom of the secondary storage tank is provided with a plurality of output ports, and the input ends of the liquid inlet electromagnetic valves are respectively communicated with the corresponding output ports through a plurality of liquid inlet pipelines so as to simultaneously charge a plurality of small-capacity gas cylinders.
As a preferable scheme, the liquid inlet electromagnetic valve and the exhaust electromagnetic valve are low-temperature electromagnetic valves and can bear CO 2 The low temperature of the liquid is more durable.
As a preferable scheme, the primary supercharging device and the secondary supercharging device are both superchargers, and the supercharging device is simple in structure and low in cost.
As a preferred scheme, the bottom of liquid-gas business turn over lid has the installation cavity, and this liquid-gas separation body upper end embedding is fixed in the installation cavity, and this pipe is in the integrative downwardly extending of the bottom surface in installation cavity to, press from both sides between the bottom surface periphery in this installation cavity and the up end periphery of liquid-gas separation body and be equipped with the sealing washer, simple structure, the equipment is convenient, and the leakproofness is good.
As a preferable scheme, the volume of the gas storage cavity is larger than that of the isolation cavity, the inner diameter of the filling flow passage is smaller than that of the isolation cavity, and the filling flow passage extends obliquely up and down so as to provide enough space for accommodating CO 2 Gas, better CO 2 And filling the liquid.
Low capacity CO 2 The split charging method of the liquid storage tank adopts the small-capacity CO 2 The liquid storage tank split charging system comprises the following steps:
(1) Connecting the small-capacity gas cylinder with the liquid-gas separator, so that the bottleneck of the small-capacity gas cylinder is inserted into the filling port and is abutted with the sealing gasket;
(2) Opening the primary supercharging device and the secondary supercharging device to enable CO in the primary storage tank to be discharged 2 After twice pressurization, the mixture enters a secondary storage tankMedium and high pressure CO 2 Primary liquid-gas separation is carried out in a secondary storage tank, and under the action of gravity, high-pressure CO 2 The liquid is sunk in the inner bottom of the secondary storage tank, and high pressure CO 2 Gas floating at high pressure CO 2 Above the liquid;
(3) Opening a liquid inlet electromagnetic valve, closing an exhaust electromagnetic valve and CO in a secondary storage tank 2 The liquid is output from the output port and sequentially flows through the liquid inlet pipeline and the liquid inlet electromagnetic valve to enter the isolation cavity of the liquid-gas separator; high pressure CO 2 In the low-speed flowing process of the liquid, high-pressure CO can be produced in the pipeline 2 Gas due to high pressure CO 2 The density of the liquid is far equal to that of high-pressure CO under the same pressure 2 High pressure CO with high specific gravity 2 The liquid flows downwards from the isolation cavity, and enters the small-capacity gas cylinder through the filling flow passage and the through hole, so that the filling is realized, and the high-pressure CO with light specific gravity is obtained 2 The gas floats upwards through the gap and enters the gas storage cavity for temporary storage so as to realize secondary liquid-gas separation;
(4) When the filling index is reached, closing the air charging valve of the small-capacity air cylinder, closing the liquid inlet electromagnetic valve, and then opening the air discharging electromagnetic valve to enable the high-pressure CO in the air storage cavity to be formed 2 The gas is sequentially exhausted through an exhaust electromagnetic valve and an exhaust pipeline.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:
the primary supercharging device, the secondary storage tank and the liquid-gas separator are arranged in a matched mode, and the primary supercharging device and the secondary supercharging device are utilized to respectively carry out CO (carbon monoxide) treatment 2 The primary pressurization and the secondary pressurization are carried out to effectively improve the CO 2 Simultaneously utilizing a secondary storage tank and a liquid-gas separator to respectively carry out high-pressure CO 2 Performing primary liquid-gas separation and secondary liquid-gas separation, and additionally matching with a liquid inlet electromagnetic valve and an exhaust electromagnetic valve, wherein the liquid inlet electromagnetic valve and the exhaust electromagnetic valve are used for respectively controlling liquid inlet and exhaust, and high-pressure CO is generated in the filling process 2 The gas can float upwards to enter the gas storage cavity for temporary storage, and the temporary stored high-pressure CO is stored after filling 2 The gas is discharged, so that the gas cylinder with small capacity is filled as much as possibleCO compression 2 Liquid, saving gas consumption and filling high-pressure CO into small-capacity gas cylinder 2 The weight value of the liquid reaches the standard as soon as possible, meets the factory conditions, and does not need to reduce high-pressure CO by increasing the filling pressure value 2 The gasification amount of the liquid can lead the weight value to reach the standard as soon as possible, unsafe factors and energy consumption caused by improving the pressure value can be reduced by the liquid-gas separation device, the volume of the small-capacity gas cylinder is not required to be increased, and the filling speed is increased.
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a block diagram of a preferred embodiment of the present invention;
FIG. 2 is a partial perspective view of a preferred embodiment of the present invention;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
FIG. 4 is an enlarged partial schematic view of FIG. 3;
FIG. 5 is an assembled perspective view of the liquid-gas separator in the preferred embodiment of the present invention;
FIG. 6 is an exploded view of the liquid-gas separator in the preferred embodiment of the invention;
FIG. 7 is a schematic cross-sectional view of a liquid-gas separator in a preferred embodiment of the invention.
The attached drawings are used for identifying and describing:
11. primary storage tank 12 and primary supercharging device
13. Two-stage supercharging device 14, first pipeline
15. Second conduit 16, third conduit
20. Two-stage storage tank 21, output port
22. Safety valve 23 and air release valve
24. Pressure gauge 30, liquid-gas separator
31. Liquid-gas separator 311 and isolation chamber
312. Air storage chamber 313 and filling flow passage
314. Cavity 32, liquid-gas inlet and outlet cover
321. Liquid-gas flow channel 322 and exhaust flow channel
323. Catheter 324, mounting lumen
33. Sealing gasket 331, through hole
34. Sealing ring 35, fixed guiding cover
351. Filling port 36, fixing cap
301. Gap 41, liquid inlet electromagnetic valve
42. Exhaust solenoid valve 43 and liquid inlet pipe
44. Evacuation line 45, inlet line
46. Output pipe 50, support
51. Positioning bit 52 and weighing device
60. A small capacity gas cylinder.
Description of the embodiments
Referring to FIGS. 1-7, a small capacity CO according to a preferred embodiment of the present invention is shown 2 The liquid storage tank split charging system comprises a primary storage tank 11, a primary supercharging device 12, a secondary supercharging device 13, a secondary storage tank 20, a liquid-gas separator 30, a liquid inlet electromagnetic valve 41 and an exhaust electromagnetic valve 42.
The input end of the primary supercharging device 12 is communicated with the primary storage tank 11; in this embodiment, the primary storage tank 11 and the primary supercharging device 12 are both disposed in a tank area, the input end of the primary supercharging device 12 is communicated with the primary storage tank 11 through a first pipeline 14, the primary storage tank 11 is a low-temperature storage tank, and the first pipeline 14 is a low-temperature pipeline capable of bearing low-temperature CO 2 Liquid, more durable; and, the primary booster device 12 is a booster pump.
The input end of the secondary supercharging device 13 is connected with the output end of the primary supercharging device 12; the second storage tank 20 is communicated with the output end of the second supercharging device 13, and the bottom of the second storage tank 20 is provided with a second storage tankAn outlet 21 inside the tank 20. In this embodiment, the input end of the second stage supercharging device 13 is connected to the output end of the first stage supercharging device 12 via a second pipeline 15, the second storage tank 20 is connected to the output end of the second stage supercharging device 13 via a third pipeline 16, the second storage tank 20 is a low temperature storage tank, the second pipeline 15 and the third pipeline 16 are low temperature pipelines, and can bear low temperature CO 2 Liquid, more durable; and, the two-stage supercharging device 13 is a booster pump. In addition, the secondary storage tank 20 is horizontally arranged, a safety valve 22, a release valve 23 and a pressure gauge 24 are arranged on the secondary storage tank 20, the safety valve 22 and the release valve 23 are both positioned at the top of the secondary storage tank 20, and the pressure gauge 24 is positioned at the input end of the secondary storage tank 20. In addition, the bottom of the secondary tank 20 is provided with a plurality of output ports 21 for multiplexing. The secondary storage tank 20 is a 4L small storage tank, the safety valve 22 is automatically opened when the pressure reaches 15MPa to ensure safety, and the air release valve 23 is used for manually releasing air to release CO 2 A gas; the pressure gauge 24 is used for monitoring the internal pressure of the secondary storage tank 20, and the monitored pressure value ranges from 0 MPa to 25MPa.
The liquid-gas separator 30 is located below the secondary storage tank 20, and the liquid-gas separator 30 includes a liquid-gas separator 31, a liquid-gas inlet and outlet cover 32, and a sealing gasket 33.
The liquid-gas separator 31 is vertically arranged, the upper end surface of the liquid separator 31 is downward concavely provided with an isolation cavity 311 and a gas storage cavity 312, the upper end of the gas storage cavity 312 is communicated with the upper end of the isolation cavity 311, in the embodiment, the volume of the gas storage cavity 312 is larger than the volume of the isolation cavity 311 so as to provide enough space for accommodating CO 2 A gas; the lower end of the liquid-gas separator 31 is provided with a filling flow channel 313, the filling flow channel 313 is communicated with the bottom of the isolation cavity 311, in this embodiment, the inner diameter of the filling flow channel 313 is smaller than the inner diameter of the isolation cavity 311, and the filling flow channel 313 extends obliquely up and down; and a cavity 314 is concavely provided in the lower end surface of the liquid-gas separator 31.
The liquid-gas inlet and outlet cover 32 is fixed at the upper end of the liquid-gas separation body 31 in a sealing way, a liquid-gas flow passage 321 and an exhaust flow passage 322 are arranged in the liquid-gas inlet and outlet cover 32, the exhaust flow passage 322 is communicated with the gas storage cavity 312, a conduit 323 extends out of the liquid-gas inlet and outlet cover 32, one end of the conduit 323 is integrally communicated with the liquid-gas flow passage 321, the other end of the conduit 323 extends out of the isolation cavity 311 from top to bottom and is communicated with the isolation cavity 311, a gap 301 is formed between the outer wall of the conduit 323 and the inner wall of the isolation cavity 311, and the gap 301 is communicated between the isolation cavity 311 and the gas storage cavity 312; in this embodiment, the bottom of the liquid-gas inlet/outlet cover 32 has a mounting cavity 324, the upper end of the liquid-gas separator 31 is embedded into the mounting cavity 324 for fixing, and the conduit 323 integrally extends downward from the bottom surface of the mounting cavity 324; a seal ring 34 is interposed between the bottom peripheral edge of the installation cavity 324 and the upper end surface peripheral edge of the liquid-gas separator 31, so as to realize sealing installation and fixation.
The gasket 33 is fixed to the lower end surface of the liquid-gas separator 31 by a fixed guide cover 35, the fixed guide cover 35 has a filling port 351, and through holes 331 are formed in the upper and lower surfaces of the gasket 33, and the through holes 331 communicate between the filling flow passage 313 and the filling port 351. In this embodiment, the sealing gasket 33 is matched with the cavity 314 and is embedded in the cavity 314 for fixing, the fixing guide cover 35 is screwed with the lower end of the liquid-gas separating body 31, and the inner periphery of the fixing guide cover 35 is pressed against the outer periphery of the sealing gasket 33.
In addition, the liquid-gas separator 31 is provided with a fixing cap 36 so as to be fixed to the outside.
The output end of the liquid inlet electromagnetic valve 41 is communicated with the liquid-air flow passage 321, the input end of the liquid inlet electromagnetic valve 41 is communicated with the output port 21 through a liquid inlet pipeline 43, and the liquid inlet electromagnetic valve 41 and the liquid inlet pipeline 43 are both positioned below the secondary storage tank 20; an input end of the exhaust solenoid valve 42 is communicated with an exhaust runner 322, and an output end of the exhaust solenoid valve 42 is connected with an exhaust pipe 44. In this embodiment, the intake solenoid valve 41 and the exhaust solenoid valve 42 are low-temperature solenoid valves, and can bear CO 2 The low temperature of the liquid is more durable; in addition, the liquid inlet pipeline 43 and the emptying pipeline 44 are low-temperature pipelines and can bear CO 2 The low temperature of the liquid is more durable; and, the output end of the liquid inlet electromagnetic valve 41 is communicated with the liquid-air flow passage 321 through an input pipeline 45, the input end of the exhaust electromagnetic valve 42 is communicated with the exhaust flow passage 322 through an output pipeline 46, the input pipeline 45 and the output pipeline 46 are low-temperature pipelines and can bear CO 2 The low temperature of the liquid is more durable.
And, the two-stage supercharging device 13, the two-stage storage tank 20, the liquid-gas separator 30, the liquid-inlet electromagnetic valve 41 and the air-outlet electromagnetic valve 42 are all arranged in a working area, a bracket 50 is arranged on the working area, a positioning position 51 for positioning the small-capacity gas cylinder 60 is arranged on the bracket 50, the two-stage supercharging device 13, the two-stage storage tank 20, the liquid-gas separator 30, the liquid-inlet electromagnetic valve 41 and the air-outlet electromagnetic valve 42 are all arranged on the bracket 50, and the liquid-gas separator 30 is positioned right above the positioning position 51. And, the bottom of the placement position 51 is provided with a weighing device 52 for weighing the small-capacity gas cylinder 60. In addition, the plurality of the positioning positions 51 are arranged side by side, and each positioning position 51 is provided with a liquid-gas separator 30, a liquid-inlet electromagnetic valve 41 and an exhaust electromagnetic valve 42, and the input ends of the liquid-inlet electromagnetic valves 41 are respectively communicated with the corresponding output ports 21 through a plurality of liquid-inlet pipelines 43 so as to simultaneously fill a plurality of small-capacity gas cylinders 60.
The invention also discloses a small-capacity CO 2 The split charging method of the liquid storage tank adopts the small-capacity CO 2 The liquid storage tank split charging system comprises the following steps:
(1) The small-capacity gas cylinder 60 is connected to the liquid-gas separator 30, and the mouth of the small-capacity gas cylinder 60 is inserted into the filling port 351 and is abutted against the sealing gasket 33 to form a seal.
(2) The primary pressurizing means 12 and the secondary pressurizing means 13 are opened so that the CO in the primary storage tank 11 2 After two times of pressurization, the high-pressure CO enters the secondary storage tank 20 2 Primary liquid-gas separation is carried out in the secondary storage tank 20, and under the action of gravity, high-pressure CO 2 The liquid settles at the inner bottom of the secondary tank 20, high pressure CO 2 Gas floating at high pressure CO 2 Above the liquid.
(3) Opening the liquid inlet electromagnetic valve 41, closing the air outlet electromagnetic valve 42, and CO in the secondary storage tank 20 2 The liquid is output from the output port 21, flows through the liquid inlet pipeline 43 and the liquid inlet electromagnetic valve 41 in sequence and enters the isolation cavity 311 of the liquid-gas separator 30; high pressure CO 2 In the low-speed flowing process of the liquid, high-pressure CO can be produced in the pipeline 2 Gas due to high pressure CO 2 The density of the liquid is far equal to that of high-pressure CO under the same pressure 2 High pressure CO with high specific gravity 2 The liquid flows downwards from the isolation cavity 311 and enters the small-capacity gas cylinder 60 through the filling flow passage 313 and the through hole 331, thereby realizing filling of high-pressure CO with light specific gravity 2 The gas floats up through the gap 301 and enters the gas storage cavity 312 for temporary storage so as to realize secondary liquid-gas separation.
(4) When the filling index is reached, the air charging valve of the small-capacity air bottle 60 is closed, the liquid inlet electromagnetic valve 41 is closed, and then the air discharging electromagnetic valve 42 is opened, so that the high-pressure CO in the air storage cavity 312 is formed 2 The gas is evacuated sequentially through an exhaust solenoid valve 42 and an evacuation line 44.
The design focus of the invention is that: the primary supercharging device, the secondary storage tank and the liquid-gas separator are arranged in a matched mode, and the primary supercharging device and the secondary supercharging device are utilized to respectively carry out CO (carbon monoxide) treatment 2 The primary pressurization and the secondary pressurization are carried out to effectively improve the CO 2 Simultaneously utilizing a secondary storage tank and a liquid-gas separator to respectively carry out high-pressure CO 2 Performing primary liquid-gas separation and secondary liquid-gas separation, and additionally matching with a liquid inlet electromagnetic valve and an exhaust electromagnetic valve, wherein the liquid inlet electromagnetic valve and the exhaust electromagnetic valve are used for respectively controlling liquid inlet and exhaust, and high-pressure CO is generated in the filling process 2 The gas can float upwards to enter the gas storage cavity for temporary storage, and the temporary stored high-pressure CO is stored after filling 2 The gas is discharged, so that high-pressure CO is filled in the small-capacity gas cylinder as much as possible 2 Liquid, saving gas consumption and filling high-pressure CO into small-capacity gas cylinder 2 The weight value of the liquid reaches the standard as soon as possible, meets the factory conditions, and does not need to reduce high-pressure CO by increasing the filling pressure value 2 The gasification amount of the liquid can lead the weight value to reach the standard as soon as possible, unsafe factors and energy consumption caused by improving the pressure value can be reduced by the liquid-gas separation device, the volume of the small-capacity gas cylinder is not required to be increased, and the filling speed is increased.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention are still within the scope of the technical solutions of the present invention.
Claims (10)
1. Low capacity CO 2 Liquid storage tank partial shipment system, its characterized in that: comprises a first-stage storage tank, a first-stage supercharging device, a second-stage storage tank, a liquid-gas separator, a liquid inlet electromagnetic valve and an exhaust electromagnetic valve;
the input end of the primary supercharging device is communicated with the primary storage tank; the input end of the secondary supercharging device is connected with the output end of the primary supercharging device; the secondary storage tank is communicated with the output end of the secondary supercharging device, and an output port communicated with the interior of the secondary storage tank is formed in the bottom of the secondary storage tank; the first-stage storage tank and the first-stage supercharging device are both arranged in the storage tank area, and the input end of the first-stage supercharging device is communicated with the first-stage storage tank through a first pipeline; the two-stage supercharging device, the two-stage storage tank, the liquid-gas separator, the liquid inlet electromagnetic valve and the exhaust electromagnetic valve are all arranged in the working area, the input end of the two-stage supercharging device is connected with the output end of the one-stage supercharging device through a second pipeline, and the two-stage storage tank is communicated with the output end of the two-stage supercharging device through a third pipeline; the secondary storage tank is horizontally arranged, a safety valve, a gas release valve and a pressure gauge are arranged on the secondary storage tank, the safety valve and the gas release valve are both positioned at the top of the secondary storage tank, and the pressure gauge is positioned at the input end of the secondary storage tank;
the liquid-gas separator is positioned below the secondary storage tank and comprises a liquid-gas separator, a liquid-gas inlet cover and a liquid-gas outlet cover and a sealing gasket; the liquid-gas separator is vertically arranged, the upper end surface of the liquid separator is downwards concavely provided with an isolation cavity and a gas storage cavity, the upper end of the gas storage cavity is communicated with the upper end of the isolation cavity, the lower end of the liquid-gas separator is provided with a filling flow passage, and the filling flow passage is communicated with the bottom of the isolation cavity; the liquid-gas inlet and outlet cover is fixed at the upper end of the liquid-gas separation body in a sealing way, a liquid-gas flow passage and an exhaust flow passage are arranged in the liquid-gas inlet and outlet cover, the exhaust flow passage is communicated with the gas storage cavity, a guide pipe extends out of the liquid-gas inlet and outlet cover, one end of the guide pipe is integrally communicated with the liquid-gas flow passage, the other end of the guide pipe extends out of the isolation cavity from top to bottom and is communicated with the isolation cavity, a gap is formed between the outer wall of the guide pipe and the inner wall of the isolation cavity, and the gap is communicated between the isolation cavity and the gas storage cavity; the sealing gasket is fixed on the lower end face of the liquid-gas separation body through a fixed guide cover, the fixed guide cover is provided with a filling opening, the upper surface and the lower surface of the sealing gasket are penetrated and formed with through holes, and the through holes are communicated between the filling flow passage and the filling opening;
the output end of the liquid inlet electromagnetic valve is communicated with the liquid-air flow passage, the input end of the liquid inlet electromagnetic valve is communicated with the output port through a liquid inlet pipeline, and the liquid inlet electromagnetic valve and the liquid inlet pipeline are both positioned below the secondary storage tank; the input end of the exhaust electromagnetic valve is communicated with the exhaust runner, and the output end of the exhaust electromagnetic valve is connected with an emptying pipeline.
2. A low capacity CO according to claim 1 2 Liquid storage tank partial shipment system, its characterized in that: the lower end face of the liquid-gas separation body is concavely provided with a concave cavity, the sealing gasket is matched with the concave cavity and is embedded in the concave cavity for fixation, the fixed guide cover is in threaded connection with the lower end of the liquid-gas separation body, and the inner periphery of the fixed guide cover is propped against the outer periphery of the sealing gasket.
3. A low capacity CO according to claim 1 2 Liquid storage tank partial shipment system, its characterized in that: the working area is provided with a support, the support is provided with a setting position for positioning the small-capacity gas cylinder, the secondary supercharging device, the secondary storage tank, the liquid-gas separator, the liquid inlet electromagnetic valve and the exhaust electromagnetic valve are all arranged on the support, and the liquid-gas separator is positioned right above the setting position.
4. A low capacity CO according to claim 3 2 Liquid storage tank partial shipment system, its characterized in that: the bottom of the placement position is provided with a weighing device for weighing the small-capacity gas cylinder.
5. A low capacity CO according to claim 1 2 Liquid storage tank partial shipment system, its characterized in that: the plurality of the setting positions are arranged side by side, and a liquid-gas separator and a liquid-electricity inlet are arranged for each setting positionThe bottom of the secondary storage tank is provided with a plurality of output ports, and the input ends of the liquid inlet solenoid valves are respectively communicated with the corresponding output ports through a plurality of liquid inlet pipelines.
6. A low capacity CO according to claim 1 2 Liquid storage tank partial shipment system, its characterized in that: the liquid inlet electromagnetic valve and the exhaust electromagnetic valve are low-temperature electromagnetic valves.
7. A low capacity CO according to claim 1 2 Liquid storage tank partial shipment system, its characterized in that: the primary supercharging device and the secondary supercharging device are both supercharge pumps.
8. A low capacity CO according to claim 1 2 Liquid storage tank partial shipment system, its characterized in that: the bottom of the liquid-gas inlet and outlet cover is provided with an installation cavity, the upper end of the liquid-gas separator is embedded into the installation cavity for fixation, the guide pipe integrally extends downwards from the bottom surface of the installation cavity, and a sealing ring is clamped between the periphery of the bottom surface of the installation cavity and the periphery of the upper end surface of the liquid-gas separator.
9. A low capacity CO according to claim 1 2 Liquid storage tank partial shipment system, its characterized in that: the volume of the gas storage cavity is larger than that of the isolation cavity, the inner diameter of the filling flow passage is smaller than that of the isolation cavity, and the filling flow passage extends in an up-down inclined mode.
10. Low capacity CO 2 The split charging method for the liquid storage tank is characterized by comprising the following steps of: a small capacity CO using the method of any one of claims 1-9 2 The liquid storage tank split charging system comprises the following steps:
(1) Connecting the small-capacity gas cylinder with the liquid-gas separator, so that the bottleneck of the small-capacity gas cylinder is inserted into the filling port and is abutted with the sealing gasket;
(2) Opening the primary supercharging device and the secondary supercharging device to enable CO in the primary storage tank to be discharged 2 After twice pressurization, enter twoIn the stage storage tank, high pressure CO 2 Primary liquid-gas separation is carried out in a secondary storage tank, and under the action of gravity, high-pressure CO 2 The liquid is sunk in the inner bottom of the secondary storage tank, and high pressure CO 2 Gas floating at high pressure CO 2 Above the liquid;
(3) Opening a liquid inlet electromagnetic valve, closing an exhaust electromagnetic valve and CO in a secondary storage tank 2 The liquid is output from the output port and sequentially flows through the liquid inlet pipeline and the liquid inlet electromagnetic valve to enter the isolation cavity of the liquid-gas separator; high pressure CO 2 In the low-speed flowing process of the liquid, high-pressure CO can be produced in the pipeline 2 Gas due to high pressure CO 2 The density of the liquid is far equal to that of high-pressure CO under the same pressure 2 High pressure CO with high specific gravity 2 The liquid flows downwards from the isolation cavity, and enters the small-capacity gas cylinder through the filling flow passage and the through hole, so that the filling is realized, and the high-pressure CO with light specific gravity is obtained 2 The gas floats upwards through the gap and enters the gas storage cavity for temporary storage so as to realize secondary liquid-gas separation;
(4) When the filling index is reached, closing the air charging valve of the small-capacity air cylinder, closing the liquid inlet electromagnetic valve, and then opening the air discharging electromagnetic valve to enable the high-pressure CO in the air storage cavity to be formed 2 The gas is sequentially exhausted through an exhaust electromagnetic valve and an exhaust pipeline.
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| CN202310340919.4A CN116428510A (en) | 2023-04-03 | 2023-04-03 | Low capacity CO 2 Liquid storage tank split charging system and method |
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| CN202310340919.4A CN116428510A (en) | 2023-04-03 | 2023-04-03 | Low capacity CO 2 Liquid storage tank split charging system and method |
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| CN215388153U (en) * | 2021-06-29 | 2022-01-04 | 成都欣诺低温设备有限公司 | Gas-liquid separator |
| CN218720614U (en) * | 2022-09-01 | 2023-03-24 | 肖军 | Liquefied gas self-operated supercharging device |
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| CA2506606A1 (en) * | 2005-06-03 | 2005-11-14 | Westport Research Inc. | Storage tank for a cryogenic liquid and method of re-filling same |
| CN205055697U (en) * | 2015-09-15 | 2016-03-02 | 烟台鹏程环保科技有限责任公司 | Gas -liquid separation device |
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